JP4444169B2 - Transmission terminal apparatus, reception terminal apparatus, server apparatus, communication system, communication control method, information transmission method, information reception method, communication control program, information transmission program, information reception program, and recording medium - Google Patents

Description

  The present invention relates to a transmission terminal device that realizes a multipoint electronic conference by exchanging voice and the like simultaneously and bidirectionally, such as a group session of PoC (Push-to Talk over Cellular) communication using a mobile phone, for example. The present invention relates to a receiving terminal device, a server device, a communication system, a communication control method, an information transmission method, an information reception method, a communication control program, an information transmission program, an information reception program, and a recording medium.

  In recent years, Push-to-Talk (PTT) has attracted attention as an application using voice. PTT is one of so-called VoIP (Voice over Internet Protocol) that uses the Internet protocol (IP) to make a call over a data communication network. In particular, Push-to-Talk over Cellular (PoC) has been developed as a communication means for realizing PTT in portable communication terminals such as mobile phones and PDAs, and it is particularly considered to be installed in mobile phones. Has been.

  PoC refers to a technology and service for realizing a communication style like a transceiver called “Push-to-Talk” with a communication terminal device such as a mobile phone.

  PoC communication allows data transmission from both sides, but the data transmission always employs a half-duplex communication method in which one direction is limited from one to the other. In other words, PoC communication can send voice to the connected partner only while the call button is being pressed, and cannot receive voice from the partner during that time, as with the transceiver.

  However, instead of dialing the other party's phone number as in the case of a conventional mobile phone, there is a merit that a connection can be made in just a few seconds by selecting a partner who can talk and pressing a button. In addition, since the data communication network is used unlike the conventional circuit switching system, there is a great merit that the call cost is reduced.

  Further, according to this PoC communication, not only one-to-one communication but also simultaneous connection (group session) with a plurality of grouped partners is possible. As a result, the mobile phone pressing the call button can simultaneously transmit the voice to the plurality of grouped mobile phones.

  FIG. 23 is a diagram showing an example of the group session by PoC communication. Here, mobile phones (A to E) of users who subscribe to a mobile phone service provided by a certain communication carrier are shown. Each mobile phone can communicate with each other via a base station 103 and a wireless communication network 104 provided by the communication carrier. For example, it is assumed that the user (user A) of the mobile phone A has registered the users (users B to E) of the mobile phones B to E as the group G in order to perform a group session. User A only needs to select the registered group G and press the call button once. As a result, the user A can transmit his / her voice to the mobile phones of the users (members) B to E registered in the group G via the base station 103 and the wireless communication network 104.

  By using the above technology, instead of sending an e-mail or making a phone call, a speaker can send his / her voice all at once with the push of a button to all members registered in the group. Can be sent. For example, it is possible to realize a conference call with one key operation for all persons in charge at the workplace.

Patent Document 1 discloses a telephone device that can ring one or more specific terminals connected to the same line. Each terminal is registered in advance with a group of words as a condition for enabling incoming calls. When a voice from a caller is recognized by the voice recognition unit and a registered word is detected from the voice, Ring only the terminal where the word is registered. As a result, the caller can select a terminal to be a receiving party depending on what word is uttered.
Japanese Patent Laid-Open No. 11-220516 (published on August 10, 1998)

  However, the conventional calling method has the following problems.

  Specifically, as a method of transmitting and receiving voice with a transmission / reception terminal device (mobile phone) at the time of a call, for example, using a handset on an ear, attaching an earphone, or the transmission / reception terminal as in a telephone It is conceivable to listen to (speak) the voice while viewing the screen using the apparatus as a speakerphone.

  However, as in the case of an important meeting of only the person in charge through the PoC communication described above, the content of the conversation conducted by the PoC communication cannot be heard by an unrelated person. When there is a person who is receiving voice by using the receiving terminal device as a speakerphone among members of a group that receives voice by PoC communication when there is a high price, there is a possibility that the talk leaks to the vicinity. is there.

  In order to avoid such a situation, the speaker confirms that each member is not a speakerphone, and then transmits a voice or confirms a member who is not a speakerphone, and then confirms that member. This means that you have to send your voice only. Such an operation is inefficient and impractical, and above all, the advantage of PoC communication that voice can be transmitted with one key operation cannot be enjoyed.

  The present invention has been made in view of the above-described problems, and its purpose is to provide a voice message of a conversation with high secrecy that is transmitted to the outside by a speakerphone function on the receiving side. Terminal device, receiving terminal device, server device, communication system, communication control method, information transmission method, information reception method, communication control program, information transmission program, information reception program, and recording To realize the medium.

  In order to solve the above-described problem, the server device according to the present invention uses the identification information included in the received transmission information in the server device that controls communication for the transmission terminal device to transmit the transmission information to the reception terminal device. Terminal information for detecting whether the transmission information is internal authentication information and detecting whether the reception terminal device that is the destination of the transmission information is in a speakerphone state A receiving means for detecting the destination that is not in a speakerphone state, comprising: detecting means; and information distributing means for distributing the received transmission information to a receiving terminal device that is a destination of the transmission information. It is characterized in that only internal speech information is delivered by voice.

  According to the above configuration, when the transmission information received from the transmission terminal device is the internal testimony information, the internal testimony identification means finds out the identification information indicating the fact from the transmission information, whereby the transmission information is It is identified that it is private information including a private message. Next, the terminal information detection means identifies the receiving terminal device that is the destination from the destination information included in the input internal narrative information, and detects whether or not the receiving terminal device is in the speakerphone state.

  If it is detected that the destination receiving terminal device is not in the speakerphone state, the information distribution means distributes the internal witness information to the receiving terminal device.

  On the other hand, if it is detected that the destination receiving terminal device is in the state of the speakerphone, the information distribution means does not distribute the internal testimony information.

  As a result, the secret information transmitted by the transmitting terminal device is distributed only to the receiving terminal device that is not in the speakerphone state.

  Therefore, even if the transmitting terminal device transmits the voice of the secret talk to the receiving terminal device, the destination receiving terminal device is in a state of outputting the sound to the outside by the function of the speakerphone. Thus, the voice of the above-mentioned secret story is not distributed to the receiving terminal device.

  Based on the above, even if the content of the conversation included in the internal testimony information is highly confidential that should not be heard by anyone other than the related parties, It is possible to avoid the risk of leakage.

  The server device according to the present invention may include a delivery result notifying unit for notifying the transmitting terminal device whether or not the received internal narrative information has been delivered to the destination receiving terminal device.

  Thereby, the user of the transmitting terminal device can recognize to which receiving terminal device the internal talk information could not be transmitted.

  The server device according to the present invention may further comprise a reception notification means for notifying the receiving terminal device that the internal teller information from the transmitting terminal device has been received addressed to the receiving terminal device.

  As a result, the user of the receiving terminal device can recognize that the internal testimony information has been sent to the user's own device even when the user's own device cannot receive the internal testimony information.

  The server device according to the present invention may further include an internal witness storage unit that stores the received internal narrative information in association with the destination receiving terminal device.

  As a result, even if the receiving terminal device cannot receive real-time internal talk information addressed to itself due to the speakerphone state, etc. On the other hand, it is possible to distribute the above-mentioned internal testimony information.

  The information distribution unit accepts a request for distribution of the internal story information stored in the internal story storage unit from the reception terminal device that is the destination of the internal story information, and associates the request with the reception terminal device of the destination. The requested inner story information stored in the above manner may be read from the inner story storage means and distributed to the destination receiving terminal device.

  Thereby, it becomes possible to deliver the above-mentioned internal testimony information to the above-mentioned reception terminal device in response to a request from the reception terminal device that could not receive the internal testimony information addressed to its own device in real time.

  The server device according to the present invention further comprises terminal information monitoring means for monitoring whether or not the receiving terminal device to which the internal story information stored in the internal story storage means has been released from the speakerphone state. When the terminal information monitoring unit detects that the destination receiving terminal device has released the speakerphone state, the information distribution unit stores the secret information stored in association with the destination receiving terminal device. May be distributed to the destination receiving terminal device.

  According to the above configuration, when the internal testimony information is stored in the internal testimony storage means, the terminal information monitoring means monitors the state of the receiving terminal device that is the destination of the internal testimony information. When the receiving terminal device releases the speakerphone state, the terminal information monitoring means detects the release, and the information distribution means accordingly stores the information stored in association with the destination receiving terminal device. The testimony information is distributed to the destination receiving terminal device.

  As a result, the inner story information stored in the inner story storage means without being delivered is automatically delivered to the receiving terminal device when the destination receiving terminal device releases the speakerphone state. It becomes possible to do.

  The server device according to the present invention further comprises text conversion means for converting the received internal speech information into a text format, and the information distribution means is a destination receiving terminal detected as being in a speakerphone state. You may make it deliver the said internal testimony information converted into the text format to an apparatus.

  According to the above-described configuration, when the internal talk information is received from the transmitting terminal device, the internal speech information is delivered only to the receiving terminal device that is not in the speakerphone state, and the receiving terminal device is in the speakerphone state. The text information of the inside testimony information is distributed.

  Thereby, it is possible to avoid the leakage of conversational speech with high secrecy and to deliver the inner talk message to the receiving terminal device in real time without waiting for the release of the speakerphone state.

  In order to solve the above problems, a receiving terminal device according to the present invention receives transmission information transmitted from an external transmitting terminal device, and is included in the received transmission information in a receiving terminal device having a speakerphone function. Message presenting means for presenting a transmission message to the user, message output means for outputting the transmission message to the message presentation means, and identification information included in the transmission information is detected, and the transmission information An internal testimony identifying means for identifying information and a state detecting means for detecting whether the message presenting means is in a speakerphone state, wherein the message output means comprises a speaker Only when it is detected that it is not in the state of the phone, the internal talk message by voice included in the internal talk information is output. It is characterized in.

  According to the above configuration, when the transmission information received from the transmission terminal device is the internal testimony information, the internal testimony identification means finds out the identification information indicating the fact from the transmission information, whereby the transmission information is It is identified that it is private information including a private message. Next, the state detection means detects whether or not the own device is in a speakerphone state.

  If it is detected that the device itself is not in the speakerphone state, the message output means outputs the internal test message included in the internal test information to the message presenting means.

  On the other hand, if it is detected that the own device is in a speakerphone state, the message output means does not output the internal talk message.

  As a result, the internal talk information transmitted by the transmitting terminal device is output by the receiving terminal device only when the speakerphone is not in the state.

  Therefore, even if the transmitting terminal device transmits the voice of the secret talk to the receiving terminal device, the destination receiving terminal device is in a state of outputting the sound to the outside by the function of the speakerphone. The receiving terminal device does not output the voice of the private talk received by itself.

  Based on the above, even if the content of the conversation included in the internal testimony information is highly confidential that should not be heard by anyone other than those involved, it is output to the outside by being output by the receiving terminal device. The risk of leakage can be avoided.

  The receiving terminal device according to the present invention may further comprise output result notifying means for notifying the transmitting terminal device whether or not the internal testimonial message has been output.

  Thereby, the user of the transmitting terminal device can recognize to which receiving terminal device the internal talk information could not be transmitted.

  The receiving terminal device according to the present invention may further include a reception notifying unit for notifying the user that the internal talk information from the transmitting terminal device has been received.

  Thereby, even if the user of the receiving terminal device is in a state where his / her device cannot receive the internal testimony information, the user can recognize that the internal testimony information has been sent to his / her device.

  The receiving terminal device according to the present invention may further include an internal testimony storage means for storing the internal testimonial message.

  This makes it possible to output a stored secret talk after it has been ready to be output even if it cannot be output in real time because of the speakerphone status. .

  The receiving terminal device according to the present invention further comprises state monitoring means for monitoring whether or not the message presentation means has released the speakerphone state, and the message output means includes the state monitoring means for displaying the message. When the means detects that the state of the speakerphone has been released, the stored secret message may be output.

  According to the above configuration, when the internal testimony information is stored in the internal testimony storage unit, the state monitoring unit monitors the message presentation unit state of the own apparatus. When the message presenting means cancels the state of the speakerphone, the state monitoring means detects the release, and the message output means accordingly responds to the inner story information stored in the inner story storage means. Output to the message presenting means.

  As a result, it is possible to automatically output the inner story information stored in the inner story storage unit without being output in response to the message presentation unit canceling the state of the speakerphone.

  The receiving terminal device according to the present invention further comprises a text converting means for converting a voiced internal testimonial message into a text format, and a display means for displaying the internal testimonial message converted into a text format, and the message output The means may output the internal testimonial message converted into a text format to the display means.

  According to the above configuration, the internal talk information is output only when the device is not in the speakerphone state, and the text information of the internal talk information is output when the device is in the speakerphone state. The output text information is visually recognized by the user by being displayed on the display means.

  Thereby, it is possible to avoid the leakage of the voice of the conversation with high secrecy and to output the inside talk message in real time without waiting for the release of the speakerphone state.

  In order to solve the above-described problem, a receiving terminal device according to the present invention is a receiving terminal device having a speakerphone function for receiving transmission information transmitted by an external transmitting terminal device via a server device. Message presenting means for presenting a transmission message included in the transmission information to the user, state monitoring means for monitoring whether or not the message presenting means has released the speakerphone state, and the transmission to the server device An information distribution requesting unit for requesting distribution of information, and when the information distribution requesting unit receives from the server device a reception notification notifying that the transmission information addressed to its own device has been received, When it is detected that the presenting means is not in a speakerphone state, the server device is requested to distribute the transmission information. It is characterized by a door.

  According to the above configuration, upon receiving a notification from the server device that the transmission information addressed to itself is received, the state monitoring unit monitors the state of the message presenting unit. When the message presenting unit cancels the speakerphone state, the state monitoring unit detects the cancellation, and the information distribution requesting unit accordingly requests the server device to distribute the transmission information. .

  As a result, the distribution of the internal story information addressed to the own device stored in the server device without being received is automatically sent to the server device in response to the message presentation means releasing the speakerphone state. It becomes possible to request.

  In order to solve the above-described problem, a transmission terminal device according to the present invention receives a transmission information creation instruction input in a transmission terminal device that transmits transmission information to a reception terminal device, and according to the content of the input instruction. When it is determined that the transmission information to be created is the internal testimony information, the instruction signal determination means for determining whether or not the transmission information to be created is the internal testimony information. It is characterized by comprising identification information insertion means for inserting identification information indicating that it is witness information into the transmission information.

  According to the above configuration, the instruction signal determination unit determines whether or not the transmission information to be generated is internal talk information from the content of the transmission information generation instruction signal input to the own apparatus. If it is determined that the transmission information to be created is internal testimony information, the identification information inserting means inserts identification information indicating that the generated transmission information is internal testimony information into the transmission information.

  As a result, when the server device or the receiving terminal device receives the transmission information, it can be identified whether the transmission information is the internal talk information.

  The transmission terminal device according to the present invention further includes an internal testimony instruction input means for inputting an internal teller information transmission instruction to the transmission terminal apparatus, and the instruction signal determination means includes the internal certificate information input means. It is characterized in that it is determined that the transmission information to be created is private talk information based on the transmission instruction input via the speech instruction input means.

  Thereby, it is possible to distinguish between an instruction input for transmitting normal transmission information and an instruction input for transmitting internal testimony information, and can be performed for one transmission terminal device.

  The transmission terminal device according to the present invention further includes a voice input unit that receives an input of a voice to be transmitted, and a volume measuring unit that measures a volume of the voice input through the voice input unit, and the instruction signal determination The means is characterized in that, based on the measurement result of the sound volume measuring means, it is determined whether or not the transmission information to be created is internal testimony information.

  The user does not need a separate operation for inputting an instruction to transmit internal testimony information, and can input an instruction to transmit internal testimony information simply by lowering the volume of the voice.

  In order to solve the above problems, the communication system according to the present invention distributes the transmission terminal device described above and the transmission information transmitted from the transmission terminal device to the reception terminal device that is the destination of the transmission information. And the server device.

  According to the above configuration, when the transmission information transmitted from the transmitting terminal device is internal talk information, the server device transmits the internal speech information only to a destination receiving terminal device that is not in a speakerphone state. Communication control is performed.

  As a result, even if the content of the conversation contained in the internal testimony information is highly confidential that should not be heard by anyone other than those involved, there is a risk that it will be leaked to the outside if it is output by the receiving terminal device. It is possible to construct a communication system that can avoid the above.

  In order to solve the above problems, the communication system according to the present invention distributes the transmission terminal device described above and the transmission information transmitted from the transmission terminal device to the reception terminal device that is the destination of the transmission information. And a receiving terminal device having the information distribution requesting means described above.

  As a result, when the server device stores the secret information addressed to the receiving terminal device, the receiving terminal device detects that the device is no longer in a speakerphone state, and automatically It is possible to construct a communication system capable of requesting the server device to distribute the internal testimony information.

  In order to solve the above problems, a communication system according to the present invention is a communication system having a server device that controls communication for a transmission terminal device to transmit transmission information to a reception terminal device. And the above-described receiving terminal device that receives transmission information from the transmitting terminal device distributed from the server device.

  According to the above configuration, when the transmission information transmitted from the transmitting terminal device is private talk information, the receiving terminal device outputs the private talk information only when the own device is not in a speakerphone state. Control is performed.

  As a result, even if the content of the conversation contained in the internal testimony information is highly confidential that should not be heard by anyone other than those involved, there is a risk that it will be leaked to the outside if it is output by the receiving terminal device. It is possible to construct a communication system that can avoid the above.

  In order to solve the above problems, a communication control method according to the present invention is a communication control method for a server apparatus that controls communication for a transmission terminal apparatus to transmit transmission information to a reception terminal apparatus. An identification step for detecting the identification information included in the information and identifying that the transmission information is internal testimony information, and whether or not the receiving terminal device that is the destination of the internal testimony information is in a speakerphone state A detection step for detecting the transmission information, and an information distribution step for distributing the transmission information to a receiving terminal device that is the destination of the transmission information. The information distribution step is detected in the detection step as not being in a speakerphone state. It is characterized in that the secret information identified in the identification step is distributed only to the destination receiving terminal device.

  According to the above method, when the internal story information is received from the transmitting terminal device, it is identified in the identification step that it is internal speech information, and the internal certificate information is identified in the detection step. It is detected whether or not the receiving terminal device that is the destination of the talk information is in a speakerphone state. Subsequently, in the information distribution step, the secret information is distributed only to the receiving terminal device that is detected not to be in a speakerphone state in the detection step.

  Based on the above, even if the content of the conversation included in the internal testimony information is highly confidential that should not be heard by anyone other than those involved, It is possible to avoid the risk of leakage.

  An information reception method according to the present invention is an information reception method for a reception terminal device having a speakerphone function, which receives transmission information transmitted from an external transmission terminal device in order to solve the above-described problem. An identification step for detecting the identification information included in the transmitted information and identifying that the transmission information is confidential information, a message presenting step for presenting the transmission message included in the transmission information to the user, and the message A state detection step for detecting whether or not the presentation step is executed in a speakerphone state, and a message output step for outputting the transmission message as an input to the message presentation step, the message output step comprising: In the state detection step, the message presentation step is executed in a speakerphone state. Only when the Most sensed, it is characterized by outputting a confidential talk message contained in whispering information identified in the identification step.

  According to the above method, when the internal testimony information is received from the transmitting terminal device, it is identified in the identification step that it is the internal testimony information. Whether or not the speakerphone is in the state is detected. Subsequently, in the message output step, an internal test message included in the internal test message information is output only when it is detected in the detection step that the device is not in a speakerphone state.

  Based on the above, even if the content of the conversation included in the internal testimony information is highly confidential that should not be heard by anyone other than those involved, It is possible to avoid the risk of leakage.

  An information transmission method according to the present invention is an information transmission method of a transmission terminal device that transmits transmission information to a reception terminal device in order to solve the above-described problem. A determination step for determining whether or not the transmission information to be created is internal testimony information according to the content of the received instruction, and when it is determined that the transmission information to be generated is internal testimony information Includes an insertion step of inserting identification information indicating that the transmission information is internal testimony information into the transmission information to be created.

  According to the above method, when an instruction input for transmission information creation is received, it is determined in the determination step whether or not the transmission information to be generated is internal narrative information. When it is determined that the transmission information to be created is internal testimony information, identification information indicating that the transmission information is internal testimony information is inserted into the transmission information to be created in the insertion step. Is done.

  As a result, when the server device or the receiving terminal device receives the transmission information, it can be identified whether the transmission information is the internal talk information.

  The communication control program of the present invention is a communication control program for operating the above-described server device in order to solve the above-described problem, and is a communication control program for causing a computer to function as each of the above-described means.

  In this case, communication between the transmission terminal device and the reception terminal device can be easily controlled by a general-purpose computer.

  An information receiving program of the present invention is an information receiving program for operating the above-described receiving terminal device to solve the above-described problem, and is an information receiving program for causing a computer to function as each of the above-described means.

  In this case, transmission information can be easily received by a general-purpose computer.

  An information transmission program of the present invention is an information transmission program for operating the above-described transmission terminal device to solve the above-described problem, and is an information transmission program for causing a computer to function as each of the above-described means.

  In this case, transmission information can be easily transmitted by a general-purpose computer.

  Further, if the communication control program, the information reception program, and the information transmission program are recorded on a computer-readable recording medium, the conversation terminal with high confidentiality can be transmitted only by providing the computer. It is possible to easily realize a server device, a receiving terminal device, and a transmitting terminal device capable of avoiding the leakage of the sound to the outside by the speakerphone function on the receiving side when it is transmitted from the device. .

  As described above, the server device according to the present invention detects the identification information included in the received transmission information, and identifies the internal narrative identification means for identifying that the transmission information is internal narrative information, and the transmission Terminal information detection means for detecting whether or not the receiving terminal device as the destination of information is in a speakerphone state, and information distribution means for delivering the received transmission information to the receiving terminal device as the destination of the transmission information; And the information distribution means distributes the internal testimony information only to a destination receiving terminal device that is detected not to be in a speakerphone state. Thereby, when the voice of the conversation with high secrecy is transmitted from the transmission terminal device, it is possible to avoid the leakage of the voice to the outside by the speakerphone function on the reception side.

  The embodiment of the present invention will be described as follows. In the present embodiment, a mobile phone will be described as an example of a transmission terminal device and a reception terminal device of the present invention, and a PoC server will be described as an example of a server device.

[Outline of PoC communication system]
FIG. 2 is a diagram showing a schematic configuration of the PoC communication system according to the present embodiment. Here, an example in which the PoC communication system according to the present invention is applied to a mobile phone network provided by a carrier of mobile phone service will be described.

  As shown in FIG. 2, the PoC communication system (communication system) 100 (200, 300) includes a mobile phone 40 (transmission terminal device) (50) (for example, a mobile phone A) that transmits information by PoC communication, A mobile phone (receiving terminal device) 60 (70, 80) (for example, mobile phone B or mobile phone C) that receives the transmitted information and a PoC server (server device) that controls PoC communication of each of the mobile phones. 10 (20, 30). Furthermore, the PoC communication system 100 (200, 300) may include a presence server 101 that manages the presence of each mobile phone.

  The presence server 101 is for centrally managing the presence of all mobile phones (including mobile phones A to C) that are centrally managed by the PoC server 10. Presence refers to information such as mobile phone usage status and status. Specifically, for example, “online”, “offline”, “participating as (conference) observer”, “participating in (conference)”, etc., and “power ON / OFF”, “busy” , “Speaker phone-active (operating)” and the like. Details of the presence information managed by the presence server 101 will be described later.

  As shown in FIG. 2, various combinations of the cellular phone 40 (50, 60, 70, 80) according to the present invention applied to each cellular phone A to C and the PoC server 10 (20, 30) can be used. The PoC communication system 100 (200, 300) can be realized. The combination of each component and the details of each PoC communication system will be described later in each embodiment. Here, the outline | summary about each component of a PoC communication system is demonstrated using each mobile phone AC of the PoC communication system 100, and the PoC server 10. FIG.

  The PoC server 10 provides various functions in the PoC communication system 100 when each mobile phone A to C establishes a one-to-one or one-to-many session by PoC communication and makes a call. Is.

  The functions possessed by the PoC server 10 can be classified into a PoC control function that centrally controls the session of each mobile phone and a PoC participation function that relays between the PoC server that performs central control and the mobile phone that is a session participant. However, the main functions of the PoC server 10 are as follows.

  For example, a function for establishing a PoC communication session, a function for controlling speech such as identifying a speaker, a function for controlling the start (end) of a SIP (Session Initiation Protocol) session, a function for providing information on session participants, etc. Is mentioned.

  Thus, a one-to-one PoC call or a group session as described above can be realized.

  Each of the mobile phones A to C is a communication terminal device for realizing a call by Push-to-Talk (PTT). The user presses the button only when speaking, and transmits a voice only while pressing the button, that is, operates the same as when using a transceiver to make a call. Each of the mobile phones A to C can communicate with the PoC server 10 and the presence server 101 via the mobile phone network provided by the communication carrier, that is, the base station 103 and the base station control device 102 that performs overall control thereof. it can. As a result, the users of the respective mobile phones A to C can realize communication by PoC with each other using the respective mobile phones.

  FIG. 3 is a diagram showing a schematic configuration of each mobile phone A to C (hereinafter simply referred to as a mobile phone) in the PoC communication system 100 of the present invention.

  As shown in FIG. 3, the mobile phone according to the present embodiment includes a wireless communication unit 2, a wireless communication antenna 90, an operation unit 3, a voice input unit (voice input unit) 4, a display unit (display unit) 5, and a receiver. An audio output unit 6, an earphone audio output unit 7, a speakerphone audio output unit 8, a recording unit 9, a camera unit 91, an LED (Light Emitting Diode) 92, a memory 93, and a main control unit 1 that performs overall control of each of the above units. It has a configuration with.

  Further, the mobile phone is provided with various function execution units for realizing PoC communication inside the main control unit 1. Details of these various function execution units will be described later.

  The wireless communication unit 2 is a component for performing wireless communication with an external PoC server or a mobile phone. In addition, the wireless communication antenna 90 realizes a component for performing wireless communication with the base station 103 in the mobile phone network, that is, a PoC communication function and various functions such as a communication function such as a telephone, electronic mail, and the Internet. Is to do.

  The operation unit 3 is a button for operating the mobile phone. A signal generated by pressing this button is sent to the main control unit 1.

  The voice input unit 4 is a microphone and is used at the time of transmission when the telephone function is executed or at the time of inputting transmission data when the PoC communication function is executed. Voice generated outside the mobile phone is taken into the mobile phone as voice data via the voice input unit 4. Further, when voice is transmitted to another mobile phone by PoC communication, the user's voice input via the voice input unit 4 is sent to the PoC server 10 as transmission information.

  The display unit 5 includes, for example, a liquid crystal display (LCD), and displays an execution screen for various application functions provided in the mobile phone. For example, if the PoC communication function is being executed, the group name of the session in which the mobile phone is currently participating, the name of the participant in the session, the presence of each participant (ie, “online”, “offline”, “viewing”) Mobile phone status) such as “only” or “speaking”.

  The receiver audio output unit 6, the earphone audio output unit 7 and the speakerphone audio output unit 8 are used as a speaker during reception when the telephone function is executed and when the PoC communication function is executed.

  The receiver voice output unit 6 is a speaker that outputs voice when the mobile phone is used with the ear in the same manner as a normal telephone receiver.

  The earphone audio output unit 7 has an audio output terminal for connecting an earphone, and outputs an audio to the earphone when the earphone is connected to the terminal. As a result, the user can output the sound from the small speaker of the earphone attached to the ear, so that the user can listen to the output sound of the mobile phone without leaking the sound to the outside without holding the mobile phone against the ear. be able to.

  The speakerphone sound output unit 8 is a speaker that outputs sound when used as a speakerphone for outputting sound to the outside of the mobile phone. The sound output from this speaker is output at a volume that can be heard well outside. Therefore, for example, when it is desired to make a call while looking at an image displayed on the display unit 5 or to listen to voices received by a plurality of users using a single mobile phone, the mobile phone is placed away from the ear. However, the user can listen to the output sound with a sufficient volume.

  In the present embodiment, the receiver audio output unit 6, earphone audio output unit 7 and speakerphone audio output unit 8 constitute an audio output unit (message presenting means) 94. In the present embodiment, in the audio output unit 94, only one of the three audio output units can output (become active) audio, and the audio output from the mobile phone is active. It is provided to the user only from the voice output unit.

  Note that the audio output unit 94 does not include all of the receiver audio output unit 6, the earphone audio output unit 7, and the speakerphone audio output unit 8, but may be configured by any of the three audio output units. Good. Further, the present invention is not limited to the above three sound output units, and any data can be used as long as sound data can be provided to the user as sound.

  Alternatively, the configuration may be such that the receiver audio output unit 6 is always active, and only one of the earphone audio output unit 7 and the speakerphone audio output unit 8 is always active. The active / inactive state of the audio output unit 94 is controlled by the main control unit 1.

  In the present embodiment, the receiver audio output unit 6 and the speakerphone audio output unit 8 are provided separately, but there may be an integrated configuration. In this case, if the output volume level of the receiver audio output unit 6 is increased to be heard outside the mobile phone, it functions as a speakerphone.

  The recording unit 9 is for storing the voice input from the outside to the mobile phone via the wireless communication unit 2 or the voice input unit 4 as voice data. Thereby, for example, even when the input sound is not output from the sound output unit 94 in real time when the sound is generated, the user can listen later by reproducing the sound data recorded by the recording unit 9. .

  The camera unit 91 is an image pickup unit including an image pickup device such as a CCD (Charge Coupled Device), and picks up a subject based on an instruction from the main control unit 1.

  The LED 92 is used as a means for visually informing a mobile phone user of an incoming call. For example, in the case of an incoming call, the LED 92 may be blinked.

  The memory 93 is a memory that stores programs, data, and the like necessary for executing application functions. Therefore, the information of the group registered for conducting the group session and the voice data recorded by the recording unit 9 are also stored here. In addition, an application program for sending and receiving e-mails using a mobile phone is also stored here. These programs and data are read by the main control unit 1 as necessary.

  Note that the mobile phone is not limited to the above-described units and functions, and may have various other functions. For example, the configuration may include a GPS (Global Positioning System) for detecting the current position, a TV antenna for realizing a TV broadcast receiving function, and a tuner.

  In a conference call using PoC communication as described above, when a voice of a conversation with high secrecy (intelligence) is transmitted from the speaker's mobile phone, the voice leaks to the outside by the speakerphone function of the conference participant. A configuration for avoiding this is provided in the main control unit 1 of the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80).

  Hereinafter, in each embodiment, the details of the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80) and the PoC communication system 100 (200, 300) constituted by these will be described. To do.

  In the following, mobile phone A in FIG. 2 is used as an example of a transmission terminal device (transmission side) that transmits transmission information, and mobile phone B (or mobile phone C) is a reception terminal device that receives the transmission information. This will be described as an example of (receiving side).

  The PoC communication system according to the present invention includes a case where the PoC server controls the internal testimony (first system = PoC communication system 100, 200) and a case where the receiving terminal device controls the internal testimony (second system). = PoC communication system 300).

  First, the functions of the mobile phone A common to both systems will be described, and then the remaining components (PoC server, mobile phone B) in the first and second systems will be described.

[Mobile phone A-Sending side]
FIG. 4 is a block diagram showing a main configuration of the transmitting-side mobile phone A (mobile phone 40) in the PoC communication system shown in FIG. As shown in FIG. 4, the mobile phone 40 includes a main control unit 1, an operation unit 3, a voice input unit 4, and a wireless communication unit 2, and the main control unit 1 is provided inside via the operation unit 3. An instruction signal determination unit (instruction signal determination means) 41 for determining the content of the input instruction signal, a transmission information generation unit 42 for generating transmission information from the voice input via the voice input unit 4, and The transmission information includes an internal-telephone flag insertion unit (identification information insertion unit) 43 for inserting a flag for indicating that the transmission information is internal-telephone information including an internal-telephone message with high confidentiality. is doing.

  The numbers assigned to the remaining components in FIG. 4 correspond to the numbers assigned to the components in FIG. 3, and the same reference numerals indicate the same components. Hereinafter, each component will be described in more detail.

  The operation unit 3 is a button for the user to operate the mobile phone 40. When each button is pressed by the user, an instruction signal corresponding to the button is input to the main control unit 1. The operation unit 3 includes a PTT operation button 44 for instructing the mobile phone 40 to start a session by PoC communication, and an internal testimony instruction button (internal) for instructing to transmit an internal testimony. Witness instruction input means) 45. An example of the installation of each button is shown in FIG. 5A and 5B are front views of the mobile phone 40. FIG.

  In FIG. 5A, the PTT operation button 44 is provided on the side of the mobile phone 40, and the inside-talking instruction button 45 is assigned to a button (for example, a cross key or a numeric key) when the mobile phone 40 is normally operated. An example is shown. In this case, first, the user presses the PTT operation button 44 while pressing the inside talk instruction button 45, and acquires the right to speak by PoC communication. By this operation, the user can instruct the mobile phone 40 to transmit the internal testimony information.

  FIG. 5B shows an example in which both the PTT operation button 44 and the internal testimony instruction button 45 are provided on the side surface of the mobile phone 40. In this case, the user uses the PoC communication start instruction button differently when he wants to send a normal conversation and when he wants to send a secret story with high secrecy. That is, when a normal conversation is to be transmitted, the right to speak is acquired by pressing the PTT operation button 44, and when the internal testimony is to be transmitted, the right to speak is pressed by pressing the internal testimony instruction button 45. To get. By this operation, the user can instruct the mobile phone 40 to distinguish between transmission of a normal transmission message and a secret message message.

  The instruction signal determination unit 41 is for determining the content of the instruction signal input via the operation unit 3. More specifically, when an instruction to create transmission information by PoC communication is received from the operation unit 3, a transmission information creation instruction signal is supplied to the transmission information creation unit 42, and the transmission information to be created is verified. It is determined whether or not to use internal testimony information including a talk message, and the determination result is supplied to the internal testimony flag insertion unit 43.

  This determination is made based on a difference in instruction signal that occurs depending on whether or not the inside-talking instruction button 45 of the operation unit 3 is pressed. When the internal telling instruction button 45 is pressed, it is determined that the transmission information to be generated is transmitted as the internal testimony information, and the determination result is supplied to the internal testimony flag insertion unit 43.

  The transmission information creation unit 42 is for generating transmission information from the voice input via the voice input unit 4. Specifically, in the present embodiment, the transmission information creation unit 42 converts the input voice into an audio data file. Next, it is divided into a plurality of packets, and a header is attached to each packet as transmission information, which is output to the internal witness flag insertion unit 43.

  The internal testimony flag insertion unit 43 is for inserting an internal testimony flag (identification information) indicating that the transmission information is internal testimony information in the header of the transmission information. This insertion is performed when the instruction signal determination unit 41 determines that the transmission information is to be transmitted as internal testimony information. FIG. 6 shows an example of transmission information when the internal teller flag is inserted.

  FIG. 6 is a diagram schematically showing transmission information when the internal testimony flag insertion unit 43 inserts the internal testimony flag. As shown in FIG. 6, in the header 47 of the transmission information 46, an internal test flag F indicating that the message stored in the transmission message 48 is an internal test message is inserted together with the destination information. Thus, when the external receiving apparatus receives the transmission information 46, the external receiving apparatus analyzes the header 47 to determine whether the transmission message 48 included in the received transmission information 46 is a normal transmission message or an internal test message. Can be identified.

  On the other hand, when the determination result by the instruction signal determination unit 41 is input to the internal testimony flag insertion unit 43 as “transmit as normal transmission information”, the transmission information 46 supplied by the transmission information creation unit 42 is: The data is output to the wireless communication unit 2 without any processing.

  According to the above configuration, when the voice transmitted by PoC communication is a secret story with high secrecy that should not leak to the outside, the inner story flag indicating that is indicated in the header by the user's instruction. After the insertion, the transmission information 46 is transmitted.

  As a result, the receiving device that is the destination can identify whether or not it is internal witness information by analyzing the header of the transmission information received from the mobile phone 40.

  Note that various methods other than the above-described example are conceivable as a method for the user to input an instruction to transmit the internal testimony information.

  For example, an instruction input is realized by calling a PoC communication application from the menu screen that is normally called when operating a mobile phone by using a cross key and a determination button, or selecting a menu for transmitting internal testimony information. It is also possible. In this way, it is not necessary to separately install a button dedicated to PoC communication.

  In another example, for example, when the PTT operation button 44 is pressed, if it is spoken in a low voice, it is automatically determined as an internal test message, and the internal test information with the internal test flag flag inserted is transmitted. It may be. FIG. 7 shows an example of a mobile phone that determines whether to transmit internal testimony information according to the input volume.

  FIG. 7 is a block diagram showing a main configuration of the mobile phone 50 that determines whether or not to transmit the internal testimony information according to the input volume. The mobile phone 50 is different from the mobile phone 40 of FIG. 4 in that an input volume measuring unit (volume measuring means) 52 that measures the volume of the voice input to the mobile phone 50 instead of having the inside talk instruction button 45 is not provided. Is provided in the main control unit 1.

  FIG. 8 shows a more detailed configuration of the input sound volume measurement unit 52. As shown in FIG. 8, the input sound volume measurement unit 52 measures the sound volume of the sound input via the sound input unit 4 and converts it to a numerical value, and measures the time for measuring the input sound. And an instruction signal generation unit 56 that generates an instruction signal for the instruction signal determination unit (instruction signal determination unit) 51 based on the time measurement result of the time measurement unit 54. Further, the input volume measuring unit 52 stores two threshold values, an inner testimony threshold value (sA) and an audio threshold value (sB), which are used when determining whether or not the input voice is an inner testimony message. It has a witness threshold storage unit 55A and a voice threshold storage unit 55B.

  Hereinafter, the flow of processing from when a voice is input from the voice input unit 4 to when the instruction signal is supplied to the instruction signal determination unit 51 will be specifically described with reference to the graph of FIG. 9.

  FIG. 9 is a graph showing changes in sound volume when a certain input sound is measured by the sound volume measurement unit 53, with the sound volume (dB) on the vertical axis and the measurement time (seconds) on the horizontal axis. It is.

  The internal test threshold value sA and the voice threshold value sB, which are indicated by two lines in the graph, are stored in the voice threshold storage unit 55B and the numerical value (dB) of the internal test threshold stored in the internal test threshold storage unit 55A. Represents the numerical value (dB) of the voice threshold.

  The internal testimony threshold value sA is a threshold value used for determining that the volume of the internal testimony is too high when the threshold value is exceeded. In the present embodiment, for example, the inner testimony threshold sA is set to 20 dB. The voice threshold sB is a value used to determine that voice for conversation is occurring when the threshold is exceeded. In the present embodiment, the audio threshold value sB is 10 dB. Hereinafter, the processing flow of the input sound volume measurement unit 52 shown in FIG. 8 will be described with reference to the graph of FIG.

  First, the operation of the input volume measuring unit 52 when measuring the volume during the period P in the graph of FIG. 9 will be described. First, when the PTT operation button 44 is pressed by the user, the sound is supplied to the volume measuring unit 53 of the input volume measuring unit 52 via the sound input unit 4. Thereby, the volume measuring unit 53 starts measuring the input voice. Here, when the volume of the sound being measured reaches the point h shown in FIG. 9, the sound volume measurement unit 53 refers to the sound threshold sB (10 dB) stored in the sound threshold storage unit 55B and performs the measurement. When the sound volume reaches the voice threshold value sB, the occurrence of conversation voice is detected. At this time, the sound volume measuring unit 53 sends a signal to the time measuring unit 54 to measure the sound volume measuring time.

  The time measuring unit 54 measures the sound volume measurement time from the point h in response to the input of the signal from the sound volume measuring unit 53. The timer unit 54 also has a time threshold value (for example, 5 seconds) inside, and measures the sound volume measurement time until the sound volume measurement time reaches the time threshold value (that is, until 5 seconds have passed since the point h). On the other hand, when the volume measuring unit 53 detects that the volume of the input voice exceeds the internal testimony threshold sA (20 dB) within 5 seconds, the volume measuring unit 53 Is interrupted and a signal is sent to reset the measured volume measurement time.

  Here, it can be seen that, during the period P in FIG. 9, the volume exceeding the voice threshold sA was not measured within 5 seconds, that is, from the point h to the point k. Accordingly, the time measuring unit 54 determines that the utterance has been made at less than 20 dB for 5 seconds or more after the conversation voice is generated, and supplies the result to the instruction signal generating unit 56. Based on the received signal, the instruction signal generation unit 56 generates an instruction signal for instructing the instruction signal determination unit 51 to transmit transmission information as internal testimony information for the sound measured within the period P. The generated signal is supplied to the instruction signal determination unit 51.

  As a result, if a voice with a low volume is input for a certain period of time or longer, it can be automatically determined as a secret message.

  Next, the operation of the input sound volume measurement unit 52 when measuring the sound volume during the period Q in the graph of FIG. 9 will be described. As described above, when the sound volume measurement time of the time measurement unit 54 reaches 5 seconds (point k), the time measurement unit 54 resets the sound volume measurement time, and then waits until the time measurement start signal is received from the sound volume measurement unit 53. .

  The volume measuring unit 53 sends a timing start signal when the measured volume reaches the voice threshold sB (point m), as in the period P. At the time point m, when the time measurement start signal is supplied from the sound volume measurement unit 53, the time measurement unit 54 starts measuring the sound volume measurement time.

  Here, unlike in the period P, it can be seen that the volume of the input voice has reached the internal test threshold value sA (20 dB) by 5 seconds, that is, at the time point n. Therefore, the sound volume measurement unit 53 referring to the internal testimony threshold value sA stored in the internal testimony threshold value storage unit 55A causes the time measurement unit 54 to measure and cancel the time measurement when the sound volume measured at the point n exceeds 20 dB. Instruct to reset the time.

  In accordance with the above instructions, the time measuring unit 54 interrupts the time measurement and resets the measurement time, and determines that the utterance has been made at 20 dB or more from the point m where the time measurement is started until 5 seconds elapses. The result is supplied to the instruction signal generator 56. Based on the received signal, the instruction signal generation unit 56 generates an instruction signal for instructing the instruction signal determination unit 51 to transmit the sound measured within the period Q as a normal transmission message included in the transmission information. To do. The generated signal is supplied to the instruction signal determination unit 51.

  Thereby, when a predetermined volume is exceeded within a certain time, it can be automatically determined as a normal transmission message.

  Or it is good also as a structure which can set freely the internal testimony threshold value sA and the voice threshold value sB which the input volume measurement part 52 hold | maintains. For example, the average volume during normal conversation for the user of the mobile phone 50 may be measured, and the inner testimony threshold sA and the voice threshold sB may be set based on the measured values. In this way, it is possible to appropriately determine whether or not the conversation is a secret talk even for a user who originally has a low voice volume during conversation.

  According to the configurations of the mobile phone 40 and the mobile phone 50 described so far, when the voice transmitted by the PoC communication is a secret talk with high confidentiality that should not leak outside, a user instruction Alternatively, the transmission information 46 is transmitted after inserting a secret flag indicating that in the header 47 of the transmission information 46 according to the volume of the voice input by the user.

  As a result, the receiving device that is the destination can identify whether or not the received information is internal test information by analyzing the header 47 of the transmission information 46 received from the mobile phone 40 and the mobile phone 50. . Hereinafter, each receiving device (PoC server, mobile phone B (or C)) that receives the transmission information 46 generated by the mobile phone 40 and the mobile phone 50 will be described in detail for each embodiment.

[First System-PoC Communication System 100, 200]
Regarding the PoC communication system 100, 200 when the PoC server determines whether or not the transmission information 46 described above is received from the mobile phone 40 (50) and is the internal test information including the internal test message, This will be described below.

  The PoC communication system 100 receives the mobile phone A to which the mobile phone 40 (50) of FIG. 2 is applied and the transmission information from the mobile phone A, and sends it to the destination mobile phone (for example, the mobile phone B (C)). And a PoC server 10 (20, 30) that performs control such as distribution of transmission information. In the present embodiment, mobile phone B (C) is described as an example of a receiving terminal device that receives the transmission information. However, these mobile phones are mobile phones that can receive transmission information by conventional PoC communication. Any telephone is acceptable.

  Further, it may include a presence server 101 for centrally managing the presence of each mobile phone. In this case, the PoC server 10 requests the presence server 101 for presence information of the mobile phone that it performs centralized management and control.

  Hereinafter, the PoC server 10 according to the present invention, which determines whether or not the received transmission information is internal testimony information, will be described in detail.

[Embodiment 1]
[PoC server 10]
FIG. 1 is a block diagram showing a main configuration of a PoC server 10 in the PoC communication system 100 shown in FIG. As shown in FIG. 1, the PoC server 10 includes a main control unit 11, a communication unit 12, a presence information storage unit 13, a recording unit 181, and a memory 182, and the main control unit 11 includes transmission information. Internal secret identification unit (intellect identification unit) 16 for analyzing the header, presence detection unit (terminal information detection unit) 17 for detecting the presence of the destination mobile phone B, recording unit 181 and recording for controlling the memory 182 It has the control part 18 and the notification message production | generation part 19 which notifies each mobile phone of the delivery result of transmission information, etc.

  The communication unit 12 is for the PoC server 10 to communicate with an external device, and distributes the received transmission information to the information receiving unit 14 for receiving transmission information from the mobile phone A and the mobile phone B. An information distribution unit (information distribution means) 15 is included. All transmission information transmitted from the mobile phone A is input to the main control unit 11 via the information receiving unit 14.

  The presence information storage unit 13 includes a storage device such as a ROM (read only memory) and a memory, and the presence of all mobile phones including the mobile phones A to C that are centrally managed by the PoC server 10. Is for centralized management.

  Presence information as described above is stored in the presence information storage unit 13 in association with each mobile phone, and is appropriately read out by the main control unit 11. Note that the presence information stored here may be the same as the presence server 101.

  The presence information is appropriately updated when the change occurs, and the consistency is maintained. For example, every time the presence of a mobile phone changes, the mobile phone may notify the presence server 101 of the change.

  The recording unit 181 and the memory 182 are for recording and storing voice data included in the transmission information input via the information receiving unit 14. Details of these functions will be described later.

  The internal secret identification unit 16 is for analyzing the header 47 of the transmission information 46 shown in FIG. As a result of the analysis, when the internal testimony flag F is detected in the header 47, it is identified that the transmission information 46 is internal testimony information, and the transmission information 46 is supplied to the presence detection unit 17. On the other hand, if there is no internal teller flag F, the transmission information 46 is supplied to the information distribution unit 15. As a result, the transmission information 46 is distributed to the destination mobile phone described in the destination information of the header 47.

  The presence detection unit 17 receives the transmission information 46 supplied from the internal testimony identification unit 16 and detects presence information about each mobile phone indicated by the destination information included in the header 47.

  The method of detecting presence information is based on destination information that uniquely identifies a mobile phone, (1) directly inquires of the mobile phone about presence, (2) inquires of the presence server 101 (see FIG. 2) about presence information, (3 It is conceivable to read presence information from the presence information storage unit 13 of the own device.

  In the present embodiment, presence information is acquired by making an inquiry to the presence server 101 of the PoC communication system 100.

  FIG. 10 shows an example of the presence information list of each mobile phone, which is centrally managed by the presence server 101 (or presence information storage unit 13). As shown in FIG. 10, the presence information list 57 has a column C1 for storing a “terminal ID” for uniquely identifying each mobile phone managed by the PoC server 10 in a centralized manner. The usage status and state of each mobile phone is stored.

  In the present embodiment, the presence detection unit 17 refers to the column C2 in which information indicating whether or not the speakerphone audio output unit 8 of the mobile phone shown in FIG. 3 is active. Here, “ON” indicates that the speakerphone audio output unit 8 is active, “OFF” indicates that the speakerphone audio output unit 8 is inactive. -"Is stored so that it can be identified. Thereby, the presence detection part 17 can detect that the audio | voice is output from the speakerphone audio | voice output part 8 in the mobile telephone B, for example.

  The presence detection unit 17 refers to the presence information list 57 and detects that the mobile phone B is in a speakerphone state (that is, the speakerphone audio output unit 8 is active). In this case, the internal story information addressed to the mobile phone B received from the internal story identification unit 16 is supplied to the recording control unit 18 and indicates that the internal story information has not yet been delivered to the mobile phone B. The signal is also supplied to the notification message generator 19.

  On the other hand, in the mobile phone C, when the column C2 is marked “OFF”, the mobile phone C detects that the voice is not leaking to the outside. In this case, the presence detection unit 17 supplies the transmission information 46 to the information distribution unit 15.

  As a result, the internal story information addressed to the mobile phone in the speakerphone state is supplied to the recording control unit 18 and the notification message generation unit 19 without being supplied to the information distribution unit 15. On the other hand, private talk information addressed to a mobile phone that is not in a speakerphone state is delivered as it is.

  The “speaker phone state” described here refers to a state in which sound can be heard outside the mobile phone. Therefore, when the receiver audio output unit 6 and the speakerphone audio output unit 8 are provided in different configurations, the above-mentioned “state in which the speakerphone audio output unit 8 is active” corresponds. On the other hand, there is a case where the receiver audio output unit 6 and the speakerphone audio output unit 8 are integrated (that is, the speakerphone function is achieved by increasing the volume output level of the receiver audio output unit 6).

  In such a case, for example, a predetermined volume output level may be set so that the presence detector 17 can determine whether or not the speakerphone is in the state. As a result, it can be determined that “the speakerphone is in a state” when “the handset voice output unit 6 is outputting a sound at an output level or higher set above”.

  The recording control unit 18 is for managing and controlling the recording unit 181 and the memory 182 for recording and storing the internal testimony information. The internal control information is recorded by the recording control unit 18, the recording unit 181, and the memory 182. A storage unit (internal testimony storage means) 180 is configured.

  When the internal testimony information is supplied from the presence detection unit 17, the recording control unit 18 sends an instruction to the recording unit 181 to record the internal testimony information. The recording control unit 18 stores the internal story information recorded by the recording unit 181 in the memory 182 in association with information such as a source mobile phone and a destination mobile phone as recorded internal story information. What is necessary is just to acquire these information from the information in the header of the said internal testimony information. Here, an example of a list of in-recording narrative information stored in the memory 182 is shown in FIG.

  FIG. 11 is a table showing an example of a management list of in-recording witness information stored in the recording unit 181. In the present embodiment, since one in-recording narrative information can be stored for each mobile phone, a “destination receiving terminal ID” for uniquely identifying a mobile phone as a destination is associated with “ It is only necessary to store “recorded witness information”.

  For example, it is assumed that when the mobile phone B is in the speakerphone state, the internal talk information is transmitted to the mobile phone B and is not distributed at that time. Even in such a case, with the above configuration, the cellular phone B makes the speakerphone function inactive and then requests the PoC server 10 for in-recording narrative information. It becomes possible to receive.

  When a plurality of in-recording narrative information can be stored for one mobile phone, the in-recording narrative information may be specified by the recording start (end) time or the like.

  The notification message generator 19 is for notifying the transmission result of the transmission information to the transmission source mobile phone A and the destination mobile phone B. The notification message generation unit 19 includes a distribution result information generation unit (distribution result notification unit) 191 and a reception information generation unit (reception notification unit) 192 therein.

  The distribution result information generation unit 191 notifies the mobile phone A, which is the transmission source of the internal testimony information, whether or not the internal testimony information received by the PoC server 10 has been distributed to each mobile phone of the destination. It is. The distribution result information generation unit 191 generates distribution result information for the mobile phone A based on the signal from the presence detection unit 17 and transmits the distribution result information via the information distribution unit 15.

  Thereby, the user of the mobile phone A can recognize to which mobile phone the internal testimony information has not been transmitted.

  The reception information generation unit 192 is for notifying the mobile phone B that the internal talk information from the mobile phone A is received to the mobile phone B. The reception information generation unit 192 generates reception information (reception notification) addressed to the mobile phone B based on the signal from the presence detection unit 17 and transmits the reception information via the information distribution unit 15.

  Thus, even when the internal telephone information cannot be received in real time because the internal telephone information is transmitted to the mobile phone B in the state of the speakerphone, the user of the mobile telephone B is addressed to his / her device. It is possible to recognize that the inside talk information has been transmitted.

  Hereinafter, the flow of processing in the PoC communication system 100 of the present embodiment will be described.

  FIG. 12 is a sequence diagram showing the flow of processing in each component of the PoC communication system 100.

  Here, mobile phone A to which mobile phone 40 (50) is applied as an example of a mobile phone on the transmitting side, mobile phone B as an example of a mobile phone on the receiving side in a speakerphone state, and reception that is not in a speakerphone state A mobile phone C will be described as an example of the mobile phone on the side (see FIG. 2).

  First, the cellular phone A transmits the transmission information 46 shown in FIG. 6 to the cellular phone B and the cellular phone C to the PoC server 10 using the method described above (S101). The header 47 of the transmission information 46 at this time includes the information of the mobile phone B and the mobile phone C as the inner witness flag and the destination information.

  The PoC server 10 analyzes the header 47 of the received transmission information 46, and determines whether or not the transmission information 46 is internal test information based on the presence or absence of the internal test flag (S102). Here, when it is determined that the transmission information 46 is internal teller information, the PoC server 10 makes an inquiry to the presence server 101 in order to confirm the presence of the destination mobile phone B and the mobile phone C, Presence information of mobile phone B and mobile phone C is acquired.

  On the other hand, if it is determined in S102 that the transmission information 46 is normal transmission information, the process proceeds to the information distribution step (S104), and the transmission information 46 is distributed to all destination mobile phones, and the process is terminated. To do.

  Next, the PoC server 10 determines, for each destination mobile phone, whether or not the mobile phone is in a speakerphone state using the acquired presence information (FIG. 10) (S103).

  First, with respect to the mobile phone B, it is detected from the presence information list 57 in FIG. 10 that the mobile phone B is in a speakerphone state (Yes in S103), and the inside talk information from the mobile phone A to the mobile phone B is used. The internal testimony information is recorded (S105).

  Next, the mobile phone C detects that the mobile phone C is not in a speakerphone state (No in S103), and distributes the above-mentioned inside talk information to the mobile phone C (S104). At this time, the secret flag of the packet may be deleted and transmitted. The secret message included in the transmitted secret information is voice-output by the voice output unit other than the speakerphone in the mobile phone C.

  When the speakerphone is determined for all the destinations and the distribution of internal testimony information and / or the recording process is completed, the PoC server 10 finally notifies each mobile phone of the distribution result.

  That is, for mobile phone A, distribution result information for reporting to which mobile phone the mobile phone addressed to transmission information 46 could not be distributed is generated (S106). The distribution result information may be information on a mobile phone that has been transmitted. When the mobile phone A receives the distribution result information, the mobile phone A presents a list of untransmitted mobile phones to the user. The list may be displayed on the display unit 5 (FIG. 3).

  On the other hand, for the mobile phone B, reception information is generated to notify the mobile phone B that the transmission information 46 is received from the mobile phone A but cannot be distributed, but is recorded and kept ( S107). The mobile phone B presents to the user of the mobile phone B that there is secret information recorded by the received information (S108). At this time, this may be displayed on the display unit 5 or may be notified by sound through the audio output unit 94.

  Thereafter, if the presence of the mobile phone B is changed, for example, when the user of the mobile phone B wears an earphone, the mobile phone B notifies the presence server 101 of the presence change, and the presence information of the presence server 101 The list 57 is updated (S110) ("earphone" with "terminal ID" B in FIG. 10 is ON and "speakerphone" is OFF).

  Subsequently, the user of the mobile phone B requests the PoC server 10 to distribute the recorded internal story information by a recording notification (Yes in S109). When the PoC server 10 receives the request for distributing in-recording narrative information, the PoC server 10 inquires of the presence server 101 about the presence information of the mobile phone B, and determines whether the mobile phone B is in the speakerphone state (S111).

  Since the “speaker phone” is changed to OFF in S110, the PoC server 10 determines that the mobile phone B is not in the speaker phone state, and the secret talk addressed to the mobile phone B from the mobile phone A. The in-recording witness information recorded as information is distributed to the mobile phone B (S112). The secret test message included in the distributed recorded testimony information is reproduced by the mobile phone B. Then, the PoC server 10 transmits to the mobile phone A a notification indicating that the in-recording narrative information has been delivered to the mobile phone B.

  On the other hand, if it is detected in S111 that the mobile phone B is still in the speakerphone state, the mobile phone B may be notified that the internal telephone information cannot be distributed unless the function of the speakerphone is canceled. . The mobile phone B that has received this notification may display a message such as “Please release the speakerphone” on the display unit 5 or notify the user by sound (S113).

  As a result, even if the mobile phone A transmits the secret speech that should not leak to the outside to the mobile phone B, the destination mobile phone B outputs the sound to the outside by the function of the speakerphone. In the case of the above, the mobile phone B is prevented from delivering the above-mentioned secret testimony voice.

  As a result, when the voice of a conversation with high secrecy is transmitted, it is possible to prevent the voice from leaking outside by the speakerphone function of the receiving device.

[Embodiment 2]
In the first embodiment described above, the reproduction of the in-recording narrative information is performed in accordance with a request instruction from the user of the mobile phone B, but the speakerphone audio output unit 8 of the mobile phone B is inactive. The cellular phone B itself may detect it and automatically request the PoC server 10 to deliver in-recording narrative information.

  In the present embodiment, a mobile phone B to which the mobile phone 80 in this case is applied and a PoC communication system 200 including the mobile phone B will be described.

[Mobile phone B-receiving side]
FIG. 13 is a block diagram showing a main configuration of mobile phone 80 according to the present embodiment. As shown in FIG. 13, the mobile phone 80 includes a main control unit 1, a wireless communication unit 2, a display unit 5, a receiver audio output unit 6, an earphone audio output unit 7, and a speakerphone audio output unit 8. The receiver audio output unit 6, earphone audio output unit 7, and speakerphone audio output unit 8 constitute an audio output unit 94.

  The mobile phone 80 includes an information receiving unit 84 for receiving transmission information distributed from the PoC server 10 and a presence monitoring unit (state monitoring unit) for detecting a change in the presence of the mobile phone 80. Means) 85, a message output unit 86 for outputting a transmission message included in the received transmission information to the voice output unit 94, and an information distribution request unit (information distribution request unit) for requesting the PoC server 10 to distribute in-recording narrative information. ) 87.

  The numbers assigned to the remaining components in FIG. 13 correspond to the numbers assigned to the components in FIG. 3, and the same reference numerals indicate the same components.

  The wireless communication unit 2 includes a wireless reception unit 82 for wirelessly receiving communication data from the PoC server 10 and a wireless transmission unit 83 for wirelessly transmitting communication data generated by the mobile phone 80. .

  The information reception unit 84 is for receiving transmission information including a transmission message and reception information from the PoC server 10 via the wireless reception unit 82. The reception information is a recording notification that is generated by the PoC server 10 and notifies that “the internal secret information addressed to the mobile phone 80 has been recorded”. The received transmission information is supplied to the message output unit 86, and the received information is supplied to the presence monitoring unit 85.

  The presence monitoring unit 85 monitors the audio output unit 94 and monitors the presence change of the mobile phone 80 (for example, the active / inactive change of the speakerphone audio output unit 8). Upon receiving the reception information from the information receiving unit 84, the presence monitoring unit 85 starts monitoring the audio output unit 94, detects that the peaker phone audio output unit 8 has transitioned from the active state to the inactive state, A signal indicating that the voice message can be output is supplied to the information distribution request unit 87.

  The message output unit 86 is for supplying information generated by the mobile phone 80 to the display unit 5 and the audio output unit 94. If it is a video signal, it is supplied to the display unit 5, and if it is an audio signal, it is supplied to the audio output unit 94. When an audio signal is supplied to the audio output unit 94, the audio is output only from the active audio output unit among the receiver audio output unit 6, the earphone audio output unit 7, and the speakerphone audio output unit 8. The

  The information distribution request unit 87 receives the information “the speakerphone audio output unit 8 has transitioned to inactive” from the presence monitoring unit 85, and sends a transmission packet requesting the PoC server 10 to distribute the in-recording narrative information. It is for generating. In this transmission packet, information about the mobile phone 80 is inserted so that the PoC server 10 can identify to which mobile phone the in-recording narrative information should be distributed.

  The in-recording witness information distribution request packet generated in this way is transmitted to the PoC server 10 via the wireless transmission unit 83.

  From the above, the cellular phone 80 automatically requests the PoC server 10 to distribute the in-recording narrative information when the speakerphone audio output unit 8 of the cellular phone 80 becomes inactive. be able to.

[PoC communication system 200]
An example in which the mobile phone 80 is applied to the mobile phone B (C) on the receiving side is as shown in FIG. The PoC communication system 200 controls the cellular phone A to which the cellular phone 40 (50) is applied, the cellular phone B (C) as the receiving side to which the cellular phone 80 is applied, and PoC that performs control such as distribution of transmission information. Server 10. As with the PoC communication system 100, the presence server 101 may be included.

  FIG. 14 is a sequence diagram showing the flow of processing in each component of the PoC communication system 200.

  Here, a mobile phone A to which the mobile phone 40 (50) is applied as an example of a mobile phone on the transmitting side, a mobile phone B to which a mobile phone 80 is applied as an example of a mobile phone on the receiving side in a speakerphone state, A description will be given using a mobile phone C as an example of a mobile phone on the receiving side that is not in a speakerphone state (see FIG. 2).

  The processing flow (S101 to S107) from when the mobile phone A transmits the transmission information 46 to the PoC server 10 until the PoC server 10 notifies the mobile phone B of the received information is shown in FIG. Since this is the same as the process flow, the description is omitted here.

  Upon receipt of the received information from the PoC server 10, the mobile phone B detects that the internal talk information addressed to the mobile phone B is recorded and stored in the PoC server 10, and monitors the presence of the mobile phone B. Start (S201).

  Thereafter, when the user of the mobile phone B wears an earphone and the presence of the mobile phone B changes (S202), the mobile phone B reports the change of presence to the presence server 101, and by the change, It is determined whether or not the speakerphone audio output unit 8 has changed the state from active to inactive (S203).

  As a result of the determination, when it is detected that the state of the speakerphone of the mobile phone B is released, the mobile phone B generates a transmission packet for requesting delivery of in-recording narrative information, and sends it to the PoC server 10. Transmit (S204).

  The PoC server 10 receives the request for distributing in-recording narrative information of the mobile phone B, and distributes in-recording narrative information addressed to the mobile phone B to the mobile phone B in response to the request (S205). At this time, the presence information of the mobile phone B may be inquired to the presence server 101 before distributing the in-recording narrative information.

  The internal test message included in the distributed internal test record information is output from the audio output unit other than the speakerphone audio output unit 8 in the mobile phone B. In addition, a notification indicating that the in-recording narrative information has been delivered to the mobile phone B is transmitted from the PoC server 10 to the mobile phone A.

  From the above, the cellular phone B automatically requests the PoC server 10 to deliver the in-recording narrative information when the speakerphone audio output unit 8 of the cellular phone B becomes inactive. be able to.

[Embodiment 3]
In the first and second embodiments described above, the distribution of the in-recording narrative information is performed by the user of the mobile phone B or the request of the mobile phone B or automatically requested by the mobile phone B. The speakerphone audio output unit 8 of the mobile phone B may be monitored, and it may be detected that it has become inactive, and the in-recording narrative information may be automatically distributed to the mobile phone B. The PoC server 20 and the PoC communication system 100 including the PoC server 20 in this case will be described below.

[PoC server 20]
FIG. 15 is a block diagram showing a main configuration of the PoC server 20 that monitors the presence of each mobile phone and automatically distributes in-recording witness information. The PoC server 20 is different from the PoC server 10 in FIG. 1 in that a presence monitoring unit (terminal information monitoring unit) 22 is further provided inside the main control unit 21.

  The presence monitoring unit 22 is for monitoring the presence of all the mobile phones that are the destinations of the internal story information recorded by the PoC server 20. More specifically, the speakerphone audio output unit 8 of each mobile phone that is the destination is monitored, and it is detected that it has transitioned to an inactive state. That is, it is possible to identify a mobile phone that is no longer in the speakerphone state.

  The mobile phone identification information indicating the mobile phone that is determined not to be in the speakerphone state is supplied to the recording control unit 18 together with an instruction signal to output the recorded in-recording information addressed to the mobile phone.

  The recording control unit 18 that has received the mobile phone identification information and the instruction signal records the recording associated with the mobile phone identification information (for example, “B” in FIG. 11) from the recording management list 49 (FIG. 11) in the memory 182. Internal secret information (“◎ × ▲ ■” in FIG. 11) is supplied to the information distribution unit 15 together with information indicating the mobile phone B as the destination.

  As a method for the presence monitoring unit 22 to monitor the presence of each mobile phone, (1) directly monitor the mobile phone, (2) detect presence information update of the presence server 101 (see FIG. 2), (3 It is conceivable to detect presence information update in the presence information storage unit 13 of the own device.

  In the present embodiment, presence is monitored by detecting presence information update of the presence server 101 of the PoC communication system 100.

  The information distribution unit 15 supplies the input in-recording narrative information (◎ × ▲ ■) to the mobile phone B.

  As a result, the presence of each mobile phone that is the destination of the in-record information can be monitored, and when the mobile phone is no longer in the speakerphone state, the in-record information can be automatically distributed. .

[PoC communication system 100]
The configuration of the PoC communication system 100 according to the present embodiment is as shown in FIG. The PoC communication system 100 is the same as the PoC communication system 100 in the first embodiment except that the PoC communication system 100 includes the PoC server 20. The presence server 101 may be included.

  FIG. 16 is a sequence diagram showing the flow of processing in each component of the PoC communication system 100 according to the present embodiment.

  Here, mobile phone A to which mobile phone 40 (50) is applied as an example of a mobile phone on the transmitting side, mobile phone B as an example of a mobile phone on the receiving side in a speakerphone state, and reception that is not in a speakerphone state A mobile phone C will be described as an example of the mobile phone on the side (see FIG. 2).

  Processing from when the mobile phone A transmits the transmission information 46 to the PoC server 10, until the PoC server 10 notifies the mobile phone B of the received information, and the mobile phone B displays that there is in-recording witness information. The flow (S101 to S108) is the same as the flow of the process in FIG. 12 in the first embodiment, and thus the description thereof is omitted here.

  The private talk information addressed to the mobile phone B, which cannot be distributed because the mobile phone B is in the speakerphone state, is recorded by the PoC server 20 in S105. At this time, the PoC server 20 starts the presence monitoring of the mobile phone B that is the destination of the recorded internal talk information (S301).

  Thereafter, when the user of the mobile phone B wears an earphone and the presence of the mobile phone B changes, the presence information list 57 of the presence server 101 is updated (S302) (“Terminal ID” in FIG. "Earphone" is ON, "Speakerphone" is OFF).

  The PoC server 20 detects the update of the presence information (Yes in S303), and determines whether the destination mobile phone B is in the speakerphone state (S304).

  Since “Speakerphone” is changed to OFF in the above S302, the PoC server 20 determines that the mobile phone B is not in the speakerphone state, and the secret talk addressed to the mobile phone B from the mobile phone A The in-recording witness information recorded as information is distributed to the mobile phone B (S305).

  The distributed in-recording narrative information is reproduced by the mobile phone B. Then, the PoC server 20 transmits a notification indicating that the recorded in-recording narrative information has been delivered to the mobile phone B to the mobile phone A and stores the mobile phone stored in the recording management list 49 (FIG. 11). The in-recording narrative information addressed to phone B is erased as distributed (S306).

  On the other hand, if it is detected in S304 that the mobile phone B is still in the speakerphone state, presence monitoring is continued.

  If in-recording witness information is still stored in the recording management list 49 (Yes in S307), the presence monitoring is continued for the destination mobile phone of the stored in-recorded witness information. If there is no secret information (No in S307), the monitoring process is terminated (S308).

  By using the method described above, the presence of each mobile phone that is the destination of the in-record information is monitored, and when the mobile phone is no longer in the speakerphone state, the in-record information is automatically distributed. Can do.

[Embodiment 4]
Note that, in the PoC communication system 100 according to the present invention, instead of recording and storing the internal story information, the PoC server converts it into text data and distributes it to the mobile phone in the speakerphone state. It may be. The PoC server 30 and the PoC communication system 100 including the PoC server 30 in this case will be described below.

[PoC server 30]
FIG. 17 shows that when the mobile phone B that is the destination of the internal test information is in a speakerphone state, the internal test message included in the received internal test information is converted into text data, and the mobile phone B It is a block diagram which shows the principal part structure of the PoC server 30 delivered to. The PoC server 30 is different from the PoC server 10 of FIG. 1 in that the internal talk message by voice included in the internal talk information received inside the main control section 31 instead of the internal talk information storage section 180. Is converted to text data, and the notification message generation unit 19 includes a distribution text information generation unit 35 and an unsealing information generation unit 36 instead of the reception information generation unit 192. It is a point.

  The communication unit 12 includes an information reception unit 32 for receiving transmission information from the mobile phone A and an information distribution unit (information distribution means) 33 for distributing the transmission information received to the mobile phone B.

  When the transmission information 46 is received from the mobile phone A via the information receiving unit 32, if the inner testimony identifying unit 16 identifies it as the inner testimony information, the presence detecting unit (terminal information) Detection means) 34.

  The presence detection unit 34 is for determining whether or not the mobile phone B that is the destination of the internal testimony information is in a speakerphone state. If the cellular phone B is not in the speakerphone state, the internal testimony information is distributed as voice via the information distribution unit 33.

  On the other hand, when it is detected that the mobile phone B is in the speakerphone state, the presence detection unit 34 supplies the inner story information to the text conversion unit 37.

  When the presence detection unit 34 detects that the mobile phone B is in the speakerphone state, the presence detection unit 34 sends the inside story information to the mobile phone B to the distribution result information generation unit 191 and the distribution text information generation unit 35. You may notify that it was not delivered with audio.

  The text conversion unit 37 performs text conversion on the inner story message based on the input voice data by voice recognition, and generates inner story information (intratext information) including the inner story message based on the text data. Is.

  The generated in-text narrative information addressed to the mobile phone B is supplied to the distribution text information generation unit 35 and is also supplied to the mobile phone B via the information distribution unit 33.

  The distribution text information generation unit 35 included in the notification message generation unit 19 includes (1) information on the mobile phone (in this case, the mobile phone B) to which the in-speech message is not distributed, and (2) the mobile phone. This is for generating “distributed text information” including the contents of the in-text narrative information generated by the text conversion unit 37 distributed to B. The distribution text information is transmitted via the information distribution unit 33 to the mobile phone A that is the transmission source of the internal testimony information.

  As a result, the user of the mobile phone A can ascertain which mobile phone the voice has not been sent to and can check what text has been delivered to those mobile phones instead.

  The unsealing information generation unit 36 is for generating unsealing information for notifying the cellular phone A that the cellular phone B has opened the in-text witness information. The generated opening information is also transmitted to the mobile phone A via the information distribution unit 33.

  As a result, the user of the mobile phone A can confirm that the in-text information is opened by the destination mobile phone B.

  From the above, when the mobile phone B to which the internal test information is addressed is in the speakerphone state, the internal test message included in the received internal test information is converted into text data, and the mobile phone B Can be delivered to. As a result, it is possible to deliver the inside talk information to the mobile phone B in real time without waiting for the release of the function of the speakerphone.

[PoC communication system 100]
The configuration of the PoC communication system 100 according to the present embodiment is as shown in FIG. The PoC communication system 100 is the same as the PoC communication system 100 in Embodiment 1 except that the PoC communication system 100 includes the PoC server 30. The presence server 101 may be included.

  FIG. 18 is a sequence diagram showing the flow of processing in each component of the PoC communication system 100 according to the present embodiment.

  Here, as in the third embodiment, mobile phone A to which mobile phone 40 (50) is applied as an example of a mobile phone on the transmitting side, and mobile phone B as an example of a mobile phone on the receiving side in a speakerphone state. A description will be given using a mobile phone C as an example of a mobile phone on the receiving side that is not in the speakerphone state (see FIG. 2).

  The processing flow (S101 to S104) from when the mobile phone A transmits the transmission information 46 to the PoC server 30 until the internal testimony information is distributed only to the mobile phone C that is not in the speakerphone state is the first embodiment. The processing flow in FIG. 12 is the same as that shown in FIG.

  In step S103, the PoC server 30 that has detected that the mobile phone B is in the speakerphone state converts the internal talk information based on the received voice data into text, and the internal talk information based on the text data (in-text talk information). Is generated (S401).

  The generated in-text testimony information is distributed to the mobile phone B and received by the mobile phone B (S402). At this time, the display unit 5 (FIG. 3) of the mobile phone B may be notified only that the in-text testimony information has been received, and may be received as a sealed letter without displaying the contents of the internal testimony information. .

  In addition, the PoC server 30 generates distribution text information including an inside story message of the converted text and transmits it to the mobile phone A so that the user of the mobile phone A can confirm whether or not the text conversion of S401 has been correctly performed. (S403). The mobile phone A that has received the distribution text information displays on the display unit 5 information on the mobile phone in which the internal testimony information has not been distributed by voice and the internal testimony information converted into text.

  On the other hand, in the mobile phone B, after receiving the notification of receipt of the in-text information in S402, the user of the mobile phone B opens the sealed in-text information (S404). At this time, the PoC server 30 is notified that the in-text testimony information has been opened.

  When the PoC server 30 receives the opening notification from the mobile phone B, the PoC server 30 generates opening information for notifying that the mobile phone B has opened the in-text witness information (S405), and notifies the mobile phone A of it.

  From the above, when the mobile phone B that is the destination of the internal talk information is in the speakerphone state, the internal talk message included in the received internal talk information is converted into text data, and the mobile phone B can be distributed. As a result, it is possible to deliver the inside talk information to the mobile phone B in real time without leaking the voice of the conversation with high secrecy and without waiting for the release of the function of the speakerphone.

[Second System-PoC Communication System 300]
Next, regarding the PoC communication system 300 in the case where the above-described transmission information 46 is received from the mobile phone 40 (50) via the PoC server and the receiving terminal device determines whether or not it is internal teller information, Explained.

  A significant difference from the above-described embodiments is that in the PoC server, it is the receiving terminal device itself that determines whether or not it is internal testimony information.

  The PoC communication system 300 receives the mobile phone A to which the mobile phone 40 (50) of FIG. 2 is applied and the transmission information from the mobile phone A through the PoC server and the reception to which the mobile phone 60 (70) is applied. Mobile phone B on the side. The PoC server may be any PoC server that can control communication such as receiving transmission information from the mobile phone A and distributing the transmission information. Note that, similar to the PoC communication systems 100 and 200, the presence server 101 may be included.

[Embodiment 5]
FIG. 19 is a block diagram showing a main configuration of the mobile phone 60 in the PoC communication system 300 shown in FIG. As shown in FIG. 19, the mobile phone 60 includes a main control unit 1, a wireless communication unit 2, a display unit 5, a receiver audio output unit 6, an earphone audio output unit 7, a speakerphone audio output unit 8, a recording unit 9, and The main control unit 1 includes an internal witness identification unit (internal narrative identification unit) 63 that analyzes the header, and a presence detection unit (state detection unit) that detects the presence of the mobile phone 60 main body. 64 and a message output unit (message output means) 66 for outputting a transmission message included in the received transmission information to the audio output unit 94 as a video signal to the display unit 5 by voice.

  The wireless communication unit 2 includes a wireless reception unit 61 that wirelessly receives data from the PoC server, and a wireless transmission unit 62 that wirelessly transmits data to the PoC server. The transmission information received by the wireless reception unit 61 is supplied to the inner testimony identification unit 63.

  The internal teller identification unit 63 is for analyzing the header 47 of the transmission information 46 (FIG. 6) received from the mobile phone A via the PoC server. As a result of the analysis, when the internal testimony flag F is detected in the header 47, it is identified that the transmission information 46 is internal testimony information, and the transmission information 46 is supplied to the presence detection unit 64. On the other hand, if there is no internal teller flag F, the transmission information 46 is supplied to the message output unit 66.

  At this time, information indicating whether or not the sound has been output is supplied to an output result information generating unit (output result notifying unit) 69. Alternatively, it may be notified only when no sound is output.

  The presence detection unit 64 is for detecting presence information of the mobile phone 60 main body. More specifically, it detects whether or not the speakerphone audio output unit 8 (and the receiver audio output unit 6) of the audio output unit 94 provided in the mobile phone 60 is active.

  When the presence detection unit 64 receives the transmission information 46 supplied from the internal identification identifying unit 63, the presence detection unit 64 detects whether or not the speakerphone audio output unit 8 is active, that is, whether or not the speakerphone is in a state. To do. Here, if the mobile phone 60 detects that it is in a speakerphone state, the received internal talk information is not output to the message output unit 66 but supplied to the recording control unit 67 (if present). On the other hand, if the mobile phone 60 detects that the speakerphone is not in the state, it supplies the inside talk information to the message output unit 66.

  The message output unit 66 is for supplying information generated by the mobile phone 60 to the display unit 5 and the audio output unit 94. If it is a video signal, it is supplied to the display unit 5, and if it is an audio signal, it is supplied to the audio output unit 94. When the transmission information 46 is supplied, the message output unit 66 outputs the transmission message 48 included in the transmission information to the audio output unit 94 as an audio signal. When an audio signal is supplied to the audio output unit 94, the audio is output only from the active audio output unit among the receiver audio output unit 6, the earphone audio output unit 7, and the speakerphone audio output unit 8. The

  Note that the mobile phone 60 may further include a recording control unit 67 that controls the recording unit 9 and the memory 93. The recording control unit 67, the recording unit 9, and the memory 93 constitute an internal testimony information storage unit (internal testimony storage means) 58. As a result, even if the presence detection unit 64 does not supply the received inner story information to the message output unit 66, the inner story information can be recorded. When a plurality of in-record information is stored in the memory 93, information such as “source terminal ID” and “recording start (end) time” shown in FIG. A recording management list (not shown) associated with information may be created. As a result, even if there are a plurality of in-recording narrative information, it can be uniquely identified and managed.

  Furthermore, the mobile phone 60 receives the inside talk information from the mobile phone A to the mobile phone B and receives a reception information generating unit (reception notifying means) 68 for notifying the user of the mobile phone B. May be included. In this case, the user of the mobile phone B can recognize that the internal testimony information has been received and not output. Moreover, the output result information generation part 69 for notifying the transmission result of the in-transmission witness information to the mobile phone A of the transmission source may be included. The output result information generated here is transmitted to the mobile phone A via the wireless transmission unit 62. Thereby, in the mobile phone B, the user of the mobile phone A that is the transmission source can recognize that the internal testimony information has not been output yet.

  Further, the output result information may include information for notifying the mobile phone A when the recorded in-record information is reproduced by the in-record information storage unit 58.

  Further, the mobile phone 60 may include a presence monitoring unit (state monitoring unit) 65 that monitors a change in presence of the mobile phone 60 main body. In this case, it is possible to automatically reproduce the recorded internal talk information in accordance with the state transition of the speakerphone audio output unit 8.

  As a result, when the mobile phone 60 receives the internal testimony information when the main body is in the speakerphone state, the mobile phone 60 is not supplied to the message output unit 66, but the output result information generation unit 69, the reception information generation unit 68, and This is supplied to the recording control unit 67. On the other hand, when the speakerphone is not in the state, the message output unit 66 outputs the sound as it is by the sound output unit other than the speakerphone sound output unit 8.

  As a result, when voice of conversation with high secrecy is received, it is possible to prevent the voice from leaking outside by the speakerphone function of the receiving terminal device body.

  Hereinafter, the flow of processing in the PoC communication system 300 of the present embodiment will be described.

  FIG. 20 is a sequence diagram showing the flow of processing in each component of the PoC communication system 300.

  Here, a mobile phone A to which the mobile phone 40 (50) is applied as an example of a mobile phone on the transmitting side, a mobile phone B to which the mobile phone 60 is applied as an example of a mobile phone on the receiving side in a speakerphone state, A description will be given using a mobile phone C as an example of a mobile phone on the receiving side that is not in a speakerphone state (see FIG. 2).

  First, the mobile phone A transmits the transmission information 46 shown in FIG. 6 to the mobile phone B and the mobile phone C to the PoC server using the above-described method (S501). The header 47 of the transmission information 46 at this time includes the information of the mobile phone B and the mobile phone C as the inner witness flag and the destination information.

  The PoC server analyzes the header 47 of the received transmission information 46 (S502), and distributes the received transmission information 46 to the destination mobile phone B and the mobile phone C.

  The mobile phone B (and C) that has received the transmission information 46 from the PoC server analyzes the header 47 of the received transmission information 46, and determines whether or not the transmission information 46 is internal test information depending on the presence or absence of the internal test flag. Is determined (S503).

  Here, when the mobile phone B (and C) determines that the transmission information 46 is normal transmission information including a transmission message (No in S503), the transmission information 46 is voice-output as it is (S504), and the processing is performed. Exit.

  On the other hand, when it is determined that the transmission information 46 is internal story information including an internal story message, the mobile phone B (and C) confirms the presence of the main body of the mobile phone B (and C), respectively (S505).

  Here, the mobile phone C detects that it is not in a speakerphone state (No in S505), and proceeds to S504 to output a sound from a sound output unit other than the speakerphone sound output unit 8 (FIG. 19). To finish the process.

  On the other hand, the mobile phone B detects that it is in a speakerphone state (Yes in S505), and records the internal testimony information (S506). Here, the reception information may be generated and the fact that the internal testimony information has been received may be displayed on the display unit 5 (S507). Further, the cellular phone B may generate output result information and notify the PoC server that the received internal talk information has not been output yet by voice (S508). The output result information is transmitted to the mobile phone A via the PoC server. When the mobile phone A receives the output result information, information on the mobile phone that has not yet been output is displayed on the display unit 5 of the mobile phone A (S509).

  Thereby, when the internal testimony information is received, it is possible to avoid leakage of the sound to the outside by the speakerphone function of the mobile phone body.

  Further, as shown in FIG. 19, when the mobile phone 60 includes the presence monitoring unit 65, when the mobile phone 60 is not in the speakerphone state, it is detected and automatically recorded. It is possible to output information by voice. The flow of the process will be described below with reference to the sequence of FIG.

  When the internal testimony information is recorded in S506, the mobile phone B starts monitoring its own presence (S510).

  Thereafter, if the presence of the mobile phone B is changed, for example, when the user of the mobile phone B wears an earphone (S511), the mobile phone B changes the speakerphone audio output unit 8 from the active state to the inactive state. Is detected (S512). At this time, the mobile phone B may notify the presence server 101 of the presence change.

  Subsequently, when it is detected that the mobile phone B itself is not in the speakerphone state (Yes in S512), the mobile phone B automatically reproduces the recorded private talk information (S513). Then, output result information for notifying that the internal testimony message information has been reproduced may be generated and transmitted to the mobile phone A via the PoC server. The mobile phone A that has received the output result information displays on the display unit 5 that the mobile phone B has played back the secret information transmitted by the mobile phone A (S514), and notifies the user of the mobile phone A. .

  According to the above method, it is possible to automatically play back the recorded secret message according to the change in the presence of the mobile phone.

[Embodiment 6]
Note that, in the PoC communication system 300 according to the present invention, instead of recording and storing the internal story information, the mobile phone B converts the internal story message included in the internal story information into text data, and When B is in the speakerphone state, it may be output. A mobile phone B to which the mobile phone 70 in this case is applied and a PoC communication system 300 including the mobile phone B will be described below.

  FIG. 21 is a block diagram showing a main configuration of the mobile phone 70 in the PoC communication system 300 shown in FIG. The cellular phone 70 is different from the cellular phone 60 in FIG. 19 in that the internal talk message by voice included in the internal talk information received inside the main control unit 1 instead of the internal talk information storage unit 58. Is a text conversion unit (text conversion means) 74 for converting the data into text data, and has an output text information generation unit 75 and an opening information generation unit 76 instead of the reception information generation unit 68.

  Note that the numbers assigned to the remaining components in FIG. 21 correspond to the numbers assigned to the components in FIG. 19, and the same reference numerals indicate the same components.

  The wireless communication unit 2 includes a wireless reception unit 61 that wirelessly receives data from the PoC server, and a wireless transmission unit 71 that wirelessly transmits data to the PoC server.

  When the transmission information 46 is received from the PoC server via the wireless reception unit 61, if the inner witness identification unit 63 identifies it as the inner witness information, the presence detection unit (state detection means) ) 72.

  The presence detector 72 is for the mobile phone B main body to determine whether or not the mobile phone B itself is in a speakerphone state. If it is determined that the mobile phone B is not in the speakerphone state, the internal talk message included in the received internal talk information is output as voice via the message output unit (message output means) 73.

  On the other hand, when it is detected that the mobile phone B is in the speakerphone state, the presence detection unit 72 supplies the inside talk information to the text conversion unit 74.

  When the presence detection unit 72 detects that the mobile phone B is in the speakerphone state, the presence detection unit 72 still outputs the inner testimonial message to the output result information generation unit 69 and the output text information generation unit 75 by voice. You may notify that it is not.

  The text conversion unit 74 is for converting the text of the internal story message based on the speech data included in the input internal story information by speech recognition to generate an internal text message.

  The generated in-text testimony message is supplied to the output text information generation unit 75 and also supplied to the display unit 5 via the message output unit 73.

  The output text information generation unit 75 (1) the in-speech message is not output, and (2) the in-text test message generated by the text conversion unit 74 is output from the mobile phone B. This is for generating “output text information” including contents. The output text information is transmitted via the wireless transmission unit 71 to the mobile phone A that is the transmission source of the internal testimony information.

  As a result, the user of the mobile phone A can grasp that the mobile phone B does not output voice and can confirm what text is output instead.

  The unsealing information generation unit 76 is for generating unsealing information for notifying the cellular phone A that the cellular phone B has opened the in-text message. The generated opening information is also transmitted to the mobile phone A via the wireless transmission unit 71.

  Thereby, the user of the mobile phone A can confirm that the in-text testimonial message has been opened by the destination mobile phone B.

  From the above, when the mobile phone B to which the internal test information is addressed is in the speakerphone state, the internal test message included in the received internal test information is converted into text data and output. be able to. As a result, the user can recognize the secret message in real time without waiting for the release of the function of the speakerphone.

  Hereinafter, the flow of processing in the PoC communication system 300 of the present embodiment will be described.

  FIG. 22 is a sequence diagram showing the flow of processing in each component of the PoC communication system 300.

  Here, the mobile phone A to which the mobile phone 40 (50) is applied as an example of the mobile phone on the transmitting side, and the mobile phone B to which the mobile phone 70 is applied as an example of the mobile phone on the receiving side in a speakerphone state, A description will be given using a mobile phone C as an example of a mobile phone on the receiving side that is not in a speakerphone state (see FIG. 2).

  The processing flow (S501 to S505) from when the mobile phone A transmits the transmission information 46 to the PoC server until only the mobile phone C that is not in the speakerphone state outputs the internal message is shown in the fifth embodiment. The processing flow in FIG. 20 is the same as that in FIG.

  In step S505, the mobile phone B that has detected that it is in the speakerphone state converts the internal talk message based on the voice data included in the received internal talk information into text, and converts the internal talk message based on the text data ( In-text testimony message) is generated (S601). At this time, the display unit 5 of the mobile phone B may be notified only of the receipt of the internal testimony information, and may be opened according to the user's instruction without displaying the content of the internal testimony message. .

  Also, the mobile phone B generates output text information including the converted in-text message and transmits it to the mobile phone A so that the user of the mobile phone A can confirm whether the text conversion of S601 has been performed correctly. (S602). The mobile phone A that has received the output text information displays on the display unit 5 that the internal talk message has not been output by voice in the mobile phone B and that the internal text message converted into the output text is used instead. It is displayed (S603).

  On the other hand, in the mobile phone B, after receiving the notification of receipt of the internal testimony information in S601, the user of the mobile phone B opens the sealed text-in-text message (S604). At this time, unsealing information indicating that the in-text testimonial message has been unsealed is generated (S605) and transmitted to the mobile phone A via the PoC server.

  From the above, when the mobile phone B to which the internal test information is addressed is in the speakerphone state, the internal test message included in the received internal test information is converted into text data and output. be able to. As a result, the user can confirm the secret message in real time without waiting for the release of the function of the speakerphone without leaking the voice of the conversation with high secrecy.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80), in particular, the inner testimony identification unit 16 (63) and the presence detection unit 17 (34, 64, 72). May be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80) include a CPU (central processing unit) that executes a command of a control program that realizes each function, and a ROM that stores the program. (Read only memory), a RAM (random access memory) for expanding the program, a storage device (recording medium) such as a memory for storing the program and various data, and the like. An object of the present invention is to provide program codes (execution format program, intermediate) of control programs for the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80) which are software for realizing the functions described above. A recording medium in which a code program and a source program are recorded so as to be readable by a computer is supplied to the PoC server 10 (20, 30) and the mobile phone 40 (50, 60, 70, 80). This can also be achieved by reading and executing the program code recorded on the recording medium by the MPU).

  Examples of the recording medium include tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and disks including optical disks such as CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the PoC server 10 (20, 30) and the cellular phone 40 (50, 60, 70, 80) may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  If the receiving terminal device or the server device of the present invention is used, it is possible to prevent the sound from leaking to the outside by the speakerphone function of the receiving device when a speech with high confidentiality is transmitted. Therefore, the communication system of the present invention including the above receiving terminal device or server device can be suitably used for, for example, a communication system for mobile phones via a mobile phone network or a multipoint electronic conference system. .

  In addition, the transmission terminal device and the reception terminal device of the present invention can be used as portable terminal devices such as a mobile phone, a pager, and a PDA (Personal Digital Assistant), or various information processing devices such as a personal computer and a laptop computer. It can be applied to various audiovisual devices such as a television broadcast receiver and a music playback device.

It is a block diagram which shows the principal part structure of the PoC server in the PoC communication system which concerns on this Embodiment. It is a figure which shows schematic structure of the PoC communication system which concerns on this Embodiment. It is a figure which shows schematic structure of the mobile telephone in the PoC communication system which concerns on this Embodiment. FIG. 3 is a block diagram showing a main part configuration of a mobile phone A in the PoC communication system shown in FIG. 2. (A) And (b) is a front view of the mobile telephone A shown in FIG. It is a figure which shows typically the transmission information transmitted by the mobile telephone A shown in FIG. It is a block diagram which shows the principal part structure of a mobile telephone which determines whether internal testimony information is transmitted according to the input sound volume. It is a block diagram which shows the more detailed structure of the input sound volume measurement part shown in FIG. FIG. 5 is a graph showing changes in sound volume when the sound input to the mobile phone A shown in FIG. 4 is measured, with the sound volume (dB) on the vertical axis and the measurement time (seconds) on the horizontal axis. . 3 is a table showing an example of a presence information list of each mobile phone, which is centrally managed by the presence server in the PoC communication system shown in FIG. 2 or the presence information storage unit shown in FIG. 4 is a table showing an example of a management list of in-recording witness information stored in the recording unit shown in FIG. 1. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on this Embodiment. It is a block diagram which shows the principal part structure of the mobile telephone which concerns on other embodiment of this invention. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on other embodiment of this invention. It is a block diagram which shows the principal part structure of the PoC server which monitors the presence of each mobile phone based on other embodiment of this invention, and distributes in-recording witness information automatically. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on other embodiment of this invention. The main part structure of the PoC server which converts into a text data the internal testimony message contained in the received internal testimony information in the PoC communication system which concerns on other embodiment of this invention, and delivers to mobile phone B is shown. It is a block diagram. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on other embodiment of this invention. It is a block diagram which shows the principal part structure of the mobile telephone in the PoC communication system which concerns on other embodiment of this invention. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on other embodiment of this invention. It is a block diagram which shows the principal part structure of the mobile telephone in the PoC communication system which concerns on other embodiment of this invention. It is a sequence diagram which shows the flow of a process in each component of the PoC communication system which concerns on other embodiment of this invention. It is the figure which showed an example of the said group session by the conventional PoC communication.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main control part 2 Wireless communication part 3 Operation part 4 Voice input part (voice input means)
5 Display section (display means)
6 receiver audio output unit 7 earphone audio output unit 8 speakerphone audio output unit 9 recording unit 10 PoC server (server device)
11 Main Control Unit 12 Communication Unit 13 Presence Information Storage Unit 14 Information Receiving Unit 15 Information Distribution Unit (Information Distribution Unit)
16 Internal testimony identification unit (Internal testimony identification means)
17 Presence detection unit (terminal information detection means)
18 Recording control unit 19 Notification message generation unit 20 PoC server (server device)
21 Main control unit 22 Presence monitoring unit (terminal information monitoring means)
30 PoC server (server device)
31 Main Control Unit 32 Information Receiving Unit 33 Information Distribution Unit (Information Distribution Unit)
34 Presence detection unit (terminal information detection means)
35 Distribution text information generation unit 36 Opening information generation unit 37 Text conversion unit (text conversion means)
40 Mobile phone (transmission terminal)
41 Instruction signal determination unit (instruction signal determination means)
42 Transmission information creation unit 43 Internal witness flag insertion unit (identification information insertion means)
44 PTT operation buttons 45 Internal testimony instruction button (internal testimony instruction input means)
46 Transmission Information 47 Header 48 Transmission Message 49 Recording Management List 50 Mobile Phone (Transmission Terminal Device)
51 Instruction signal determination unit (instruction signal determination means)
52 Input volume measuring unit (volume measuring means)
53 Volume measurement unit 54 Timekeeping unit 55A Internal witness threshold storage unit 55B Voice threshold storage unit 56 Instruction signal generation unit 57 Presence information list 58 Internal narrative information storage unit (internal narrative storage means)
60 Mobile phone (receiving terminal device)
61 Wireless receiver 62 Wireless transmitter 63 Internal narrative identification unit (Internal narrative identification means)
64 Presence detection unit (status detection means)
65 Presence monitoring unit (status monitoring means)
66 Message output section (message output means)
67 Recording control unit 68 Reception information generation unit (reception notification means)
69 Output result information generation unit (output result notification means)
70 Mobile phone (receiving terminal device)
71 Wireless transmission unit 72 Presence detection unit (state detection means)
73 Message output part (message output means)
74 Text converter (text converter)
75 Output text information generation unit 76 Unsealing information generation unit 80 Mobile phone (receiving terminal device)
82 wireless receiver 83 wireless transmitter 84 information receiver 85 presence monitoring unit (status monitoring means)
86 Information output section 87 Information distribution request section (information distribution request means)
90 Wireless communication antenna 91 Camera unit 92 LED
93 Memory 94 Audio output unit (message presenting means)
100 PoC communication system (communication system)
DESCRIPTION OF SYMBOLS 101 Presence server 102 Base station control apparatus 103 Base station 104 Wireless communication network 180 Internal witness information storage part (Internal tale storage means)
181 Recording unit 182 Memory 191 Distribution result information generation unit (distribution result notification means)
192 Reception information generation unit (reception notification means)
200 PoC communication system (communication system)
300 PoC communication system (communication system)

Claims (22)

In the server device that controls communication for the transmission terminal device to transmit the transmission information to the reception terminal device,
Internal identification identifying means for detecting identification information included in the received transmission information and identifying that the transmission information is internal confidential information;
Terminal information detection means for detecting whether or not the receiving terminal device as the destination of the transmission information is in a speakerphone state;
Information distribution means for distributing the received transmission information to a receiving terminal device that is the destination of the transmission information;
The server apparatus according to claim 1, wherein the information distribution means distributes the internal talk information by voice only to a receiving terminal apparatus that is detected as not being in a speakerphone state.   2. The server apparatus according to claim 1, further comprising a distribution result notifying unit for notifying the transmitting terminal apparatus whether or not the received inside-call information is distributed to a destination receiving terminal apparatus.   The reception device according to claim 1, further comprising: a reception notification unit that notifies the reception terminal device that the internal teller information from the transmission terminal device is received to the reception terminal device. Server device.   4. The server device according to claim 1, further comprising an internal story storage unit that stores the received internal story information in association with the destination receiving terminal device. The information distribution means
Accepting a request for distribution of the inner story information stored in the inner story storage means from the receiving terminal device that is the destination of the inner story information;
5. The requested inner story information stored in association with the destination receiving terminal device is read from the inner story storage means and distributed to the destination receiving terminal device. The server device described in 1. Furthermore, it comprises terminal information monitoring means for monitoring whether or not the receiving terminal device that is the destination of the inner story information stored in the inner story storage means has released the state of the speakerphone,
When the terminal information monitoring unit detects that the destination receiving terminal device has released the speakerphone state, the information distribution unit obtains the internal story information stored in association with the destination receiving terminal device. The server device according to claim 4, wherein the server device is distributed to the destination receiving terminal device. Furthermore, it comprises a text conversion means for converting the internal speech information received by the voice into a text format,
7. The information distribution unit according to claim 1, wherein the internal teller information converted into a text format is distributed to a destination receiving terminal device detected as being in a speakerphone state. The server device according to item.   In a receiving terminal device having a speakerphone function for receiving transmission information transmitted by an external transmitting terminal device via the server device according to claim 4 or 5,
  Message presenting means for presenting to the user a transmission message included in the transmission information;
  State monitoring means for monitoring whether the message presenting means has released the speakerphone state;
  An information delivery requesting means for making a delivery request for the transmission information to the server device,
  The information distribution request means is
  When receiving from the server device a reception notification notifying that the transmission information addressed to the device itself has been received, when the message monitoring unit detects that the message presenting unit is not in a speakerphone state, the server device A receiving terminal device which makes a delivery request for the transmission information.   In the transmission terminal device that transmits the transmission information to the reception terminal device via the server device according to any one of claims 1 to 7,
  An instruction signal determination unit that receives an instruction input for creating transmission information, and determines whether or not the transmission information to be created is internal narrative information according to the content of the input instruction;
  When it is determined that the transmission information to be created is internal testimony information, an identification information insertion means for inserting identification information indicating that the transmission information is internal testimony information into the transmission information is provided. A transmitting terminal device characterized by that.   Furthermore, it comprises an internal testimony instruction input means for inputting an instruction to transmit the internal testimony information to the transmitting terminal device,
  The said instruction signal determination means determines with the said transmission instruction | indication input via the said internal testimony instruction input means that the transmission information which should be produced is internal testimony information. Sending terminal device.   And voice input means for receiving voice input to be transmitted;
  Volume measuring means for measuring the volume of the voice input via the voice input means,
  10. The transmission terminal apparatus according to claim 9, wherein the instruction signal determination unit determines whether or not the transmission information to be created is internal evidence information based on a measurement result of the volume measurement unit.   The transmission terminal device according to any one of claims 9 to 11,
  A communication apparatus comprising: the server apparatus according to any one of claims 1 to 7, which distributes transmission information transmitted from the transmission terminal apparatus to a reception terminal apparatus that is a destination of the transmission information. system.   The transmission terminal device according to any one of claims 9 to 11,
  The server apparatus according to claim 4 or 5, wherein the transmission information transmitted from the transmission terminal apparatus is distributed to a reception terminal apparatus that is a destination of the transmission information;
  A communication system comprising the receiving terminal device according to claim 8.   A communication control method of a server device for controlling communication for transmitting terminal device to transmit transmission information to receiving terminal device,
  An identification step for detecting identification information included in the received transmission information, and identifying that the transmission information is internal information.
  A detection step of detecting whether or not the receiving terminal device that is the destination of the internal testimony information is in a speakerphone state;
  An information distribution step of distributing the transmission information to a receiving terminal device that is a destination of the transmission information,
  The information distribution step distributes the intellect information identified in the identification step only to the destination receiving terminal device detected in the detection step that is not in a speakerphone state. Control method.   An information reception method for a reception terminal device having a speakerphone function, wherein transmission information transmitted by an external transmission terminal device is received via the server device according to claim 4 or 5,
  Receiving from the server device a reception notification for notifying that the transmission information addressed to the receiving terminal device has been received;
  A state monitoring step for monitoring whether or not the message presentation means for presenting the transmission message included in the transmission information to the user is released from the speakerphone state, provided in the reception terminal device;
  An information delivery requesting step for making a delivery request for the transmission information to the server device,
  In the above information distribution request step,
  An information receiving method, wherein, in the state monitoring step, when it is detected that the message presenting means is not in a speakerphone state, a delivery request for the transmission information is made to the server device.   A transmission terminal apparatus information transmission method for transmitting transmission information to a reception terminal apparatus via the server apparatus according to any one of claims 1 to 7,
  Receiving a transmission information creation instruction input;
  A determination step of determining whether or not the transmission information to be created is internal teller information according to the content of the input instruction;
  An insertion step of inserting identification information indicating that the transmission information is internal testimony information into the generated transmission information when it is determined that the transmission information to be generated is internal testimony information An information transmission method characterized by the above.   A communication control program for operating the server device according to any one of claims 1 to 7, wherein the communication control program causes a computer to function as each of the means.   9. An information receiving program for operating the receiving terminal device according to claim 8, wherein the information receiving program causes a computer to function as each means described above.   An information transmission program for operating the transmission terminal device according to any one of claims 9 to 11, wherein the information transmission program causes a computer to function as each of the above means.   A computer-readable recording medium on which the communication control program according to claim 17 is recorded.   The computer-readable recording medium which recorded the information receiving program of Claim 18.   A computer-readable recording medium on which the information transmission program according to claim 19 is recorded.

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