JP4108551B2 - Telephone and sound quality control method for telephone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone having a function of changing the frequency characteristic of a call voice during a call and controlling the sound quality of the call voice based on the frequency characteristic, and a sound quality control method for the telephone.
[0002]
[Prior art]
Conventionally, a telephone set as described below is known as a telephone set having a function for controlling the sound quality of such call voice (see, for example, Patent Document 1).
[0003]
According to the telephone of this patent document 1, the frequency characteristic of the call voice that is easy for the user to listen to is set in advance, and during the call, out of the call voice based on the preset frequency characteristic, Since the sound quality of the received voice is controlled, it is possible to provide a received voice that is easy for the user to hear.
[0004]
In the telephone of Patent Document 1, the received voice is controlled based on the preset frequency characteristics. However, not only the preset frequency characteristics but also the frequency characteristics of the received voice are changed during a call. A technique for controlling the sound quality of the received voice is also known.
[0005]
According to such a conventional telephone, the frequency characteristic of the received voice can be changed while making a call, and the sound quality of the received voice is controlled based on the frequency characteristic, so that the user can obtain the optimum sound quality during the call. Received voice can be obtained.
[0006]
[Patent Document 1]
JP-A-8-191340 (abstract)
[0007]
[Problems to be solved by the invention]
However, according to the conventional telephone set, the frequency characteristic of the received voice is changed during the call, and the quality of the received voice and the transmitted voice during the call is controlled based on the changed frequency characteristic. However, since it is not possible to register the frequency characteristics changed during this call, if you want to control the sound quality of the received voice and transmitted voice related to the same frequency characteristics with the other party of the same telephone number again, During the call, it is necessary to change the frequency characteristic again, and the operability is not good.
[0008]
The present invention has been made in view of the above points, and an object of the present invention is to provide a telephone with significantly improved operability related to changing the frequency characteristics of a call voice during a call with the same telephone number, and the sound quality of the telephone. It is to provide a control method.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the telephone of the present invention stores outgoing or incoming call history date / time, telephone number of the call partner, name or name of the call partner, frequency characteristics of received voice and transmitted voice as outgoing / incoming history data. A frequency characteristic storage means for managing and storing the telephone number of the other party as the phone book data, the name or name of the other party, the frequency characteristics of the received voice and the transmitted voice, and a telephone means for making a call with the other party Each time a predetermined operation for instructing the change of the frequency characteristic is performed by the operator during the call by the call means, and until a DTMF signal indicating the end of the change process of the frequency characteristic is received from the call partner. each time it receives a request for a change in frequency characteristics with DTMF signals, related to the transmitted voice into frequency characteristics or the other party involved in the received voice from the other party Normal wave number characteristics, high frequency emphasis, the frequency characteristic changing means for changing the predetermined order of the low-frequency emphasis, when the frequency characteristic is changed during the call by the call unit, the frequency characteristics related to the received voice at the time the call is completed And the frequency characteristics related to the transmitted voice are stored and managed in association with the telephone number of the other party in the call history data, and the registered name or name in the telephone directory data is selected by the operator. A frequency characteristic storage means for storing and managing a frequency characteristic related to the received voice and a frequency characteristic related to the transmitted voice at the time when the call is terminated in association with the selected name or name of the telephone directory data; and communication operation detection means for detecting a communication operation with the other party, electrodeposition of the telephone directory data when detecting a calling operation by the telephone directory data in the communication operation detecting means When the frequency characteristics related to the received voice corresponding to the number and the frequency characteristics related to the transmitted voice are searched from the telephone directory data, and the call operation based on the call history data is detected by the communication operation detecting means, the call history data is detected. The frequency characteristics related to the received voice corresponding to the telephone number and the frequency characteristics related to the transmitted voice are searched from the outgoing / incoming history data and registered in the telephone book data or the outgoing / incoming history data by the communication operation detecting means. A frequency characteristic search means for searching for a frequency characteristic related to the received voice and a frequency characteristic related to the transmitted voice corresponding to the telephone number of the telephone directory data or the outgoing / incoming history data when detecting an incoming call from a telephone number Sound quality control of the received voice from the other party based on the frequency characteristics related to the received voice searched by the frequency characteristic search means And a sound quality control means for controlling the sound quality of the transmitted voice to the other party on the basis of the frequency characteristics related to the retrieved transmitted voice.
[0010]
Therefore, according to the telephone of the present invention, when the frequency characteristic related to the voice of the call with the call partner and the telephone number of the call partner are stored in association with each other and a communication operation with the call partner is detected, Since the frequency characteristic corresponding to the telephone number of the other party is searched, and the sound quality of the call voice with the other party is controlled based on the searched frequency characteristic, the caller with the same telephone number is again connected. When making a call, the voice quality is automatically controlled based on the frequency characteristics corresponding to the telephone number of the other party, so there is no need to perform operations related to changing the frequency characteristics. The operability related to the frequency characteristic change can be remarkably improved.
[0016]
Further , according to the telephone of the present invention, when a predetermined operation is detected during a call with the other party, the frequency characteristic related to the voice of the call with the other party is changed. The frequency characteristics related to the voice of the call with the other party can be easily changed with the button operation.
[0020]
In addition , according to the telephone of the present invention, when a predetermined DTMF signal from the call partner is detected, the frequency characteristic related to the call voice with the call partner is changed. It is possible to easily change the frequency characteristics related to the call voice with the other party. For example, it is very convenient for a telephone user who cannot change the frequency characteristic because the frequency characteristic can be changed by remote operation from the other party.
[0025]
The telephone according to the present invention has a display means for displaying on the display section the frequency characteristic related to the received voice from the call partner or the frequency characteristic related to the transmitted voice to the call partner.
Therefore, according to the telephone of the present invention, since the frequency characteristic is displayed on the display unit of the telephone, the telephone user can visually recognize that the currently set frequency characteristic and the frequency characteristic can be changed. it can.
The telephone sound quality control method according to the present invention stores and manages outgoing or incoming call history date and time, telephone number of the call partner, name or name of the call partner, frequency characteristics of received voice and transmitted voice as outgoing / incoming history data. The telephone number of the other party, the name or name of the other party, the frequency characteristics of the received voice and the transmitted voice are stored and managed as telephone directory data, and a predetermined operation for instructing the operator to change the frequency characteristics during a call is performed. Every time it is performed, and every time a frequency characteristic change request is received by the DTMF signal before receiving a DTMF signal indicating the end of the frequency characteristic change process from the call partner, the received voice from the call partner is involving frequency characteristic or normal frequency characteristics related to the transmission voice to the other party, the high frequency emphasis is changed to the prescribed order of the low-frequency emphasis, the received voice at the time the call is completed With a frequency characteristic related to the transmission voice frequency characteristic storage managed in association with the telephone number of the other party of the calling inbound call history data regarding the registered name or names of the phonebook data by the operator storage managing the frequency characteristics related to the received voice at the time the call is terminated when it is selected and the frequency characteristics relating to the transmission voice in association with the selected name or name of the telephone directory data, telephone directory data When a call operation is detected, a frequency characteristic related to the received voice corresponding to the telephone number of the telephone book data and a frequency characteristic related to the transmitted voice are searched from the telephone book data, and the communication operation detecting means uses the call history data. When a call origination operation is detected, the frequency characteristics related to the received voice and the frequency characteristics related to the sent voice corresponding to the telephone number of the call history data are sent. When the incoming call from the telephone number registered in the telephone book data or the outgoing / incoming call history data is detected by the communication operation detecting means, the telephone book data or the outgoing / incoming call history data The frequency characteristics related to the received voice corresponding to the telephone number and the frequency characteristics related to the transmitted voice are searched, and the received voice from the other party is controlled and searched based on the searched frequency characteristics related to the received voice. The sound quality of the transmitted voice to the other party is controlled based on the frequency characteristics related to the transmitted voice.
[0026]
Therefore, according to the sound quality control method for a telephone of the present invention, the frequency characteristics relating to the voice of communication with the call partner and the telephone number of the call partner are stored and managed in association with each other to communicate with the call partner. When the operation is detected, the frequency characteristic corresponding to the telephone number of the other party is searched, and the sound quality of the call voice with the other party is controlled based on the searched frequency characteristic. When calling with the other party again, the voice quality is automatically controlled based on the frequency characteristics corresponding to the telephone number of the other party, so there is no need to perform operations related to changing the frequency characteristics. As a result, the operability related to the change of the frequency characteristics can be remarkably improved.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a telephone system showing an embodiment of a telephone of the present invention will be described based on the drawings. FIG. 1 is a block diagram showing a schematic configuration inside a base phone of the telephone system according to the present embodiment, and FIG. 2 is an explanatory diagram showing an external configuration of the base phone.
[0028]
The telephone system 1 includes, for example, a base phone 10A that is connected to the public network 2 and a slave phone 10B that is connected to the public network 2 by wireless connection to the base phone 10A.
[0029]
A base phone 10A shown in FIG. 1 is connected to a call partner of the public network 2 and has a dial number (DTMF signal) for the main unit DSP 11A for controlling the sound quality of the voice of the call with the call partner. A dial transmission unit 12A for transmitting, a handset unit 13A used for transmission and reception related to a call with a call partner, a microphone unit 14A for collecting sound, a speaker unit 15A for outputting sound to a speaker, and these handsets 13A, microphone unit 14A and speaker unit 15A, a base unit changeover switch 16A for switching input / output, a base unit radio unit 17A for managing a radio interface with handset phone 10B, and a base unit operation unit 18A for inputting various commands And a base unit LCD 19A for displaying various information, a base unit storage unit 20A for storing various information, and the entire base unit telephone 10A. And a machine control unit 21A.
[0030]
Master device DSP11A changes the frequency characteristics of the call voice with the call partner, and based on these changed frequency characteristics, the sound quality of the voice sent to the call partner among the call voices of this call partner And a function for controlling the sound quality of the received voice from the call partner of the call partner.
[0031]
Base unit operation unit 18A includes, for example, a numeric keypad 31A for inputting a dial number and the like, a voice switch 32A for activating a sound quality control function for changing the sound quality of a call voice during a call, and a frequency characteristic of a send voice among the call voices. Activating the phonebook function and the incoming / outgoing selection key 33A for switching and selecting the change of the received voice frequency characteristic, the information input key 34A for entering the name and name used for the telephone book function, etc. A phone book key 35A, a transmission / reception history key 36A for activating a transmission / reception history function such as a transmission history and a reception history, and a transmission key 37A for activating a transmission function. Of the master unit operating section 18A, the outgoing key 37A, outgoing / incoming history key 36A, telephone book key 35A, incoming / outgoing selection key 33A and voice switch 32A are shown in the lower part of the master LCD 19A as shown in FIG. It shall be arranged in.
[0032]
FIG. 3 is a block diagram showing a schematic configuration inside the parent device control unit 21A according to the present embodiment.
[0033]
The base unit control unit 21A shown in FIG. 3 controls the display of the base unit LCD 19A and the communication control unit 41 that controls the communication interface with the public network 2, the key monitoring unit 42 that monitors key operations of the base unit operation unit 18A, and the base unit LCD 19A. A display control unit 43, a memory control unit 44 for controlling the memory of the parent device storage unit 20A, and a sound quality control unit 45 for controlling the parent device DSP 11A.
[0034]
The base unit control unit 21A has three functions, which are roughly divided, and a frequency characteristic changing function for changing the frequency characteristics of the received voice and the transmitted voice in the call voice during a call with the other party, The frequency characteristics registration function that stores and manages the frequency characteristics of the received voice and transmitted voice that are changed according to the end of the call in units of the telephone number of the other party, and the other party's telephone when receiving or making a call The frequency characteristics of the received voice and the transmitted voice corresponding to the number can be searched, and the frequency characteristics can be classified into a frequency characteristic setting function for automatically controlling the sound quality of the received voice and the transmitted voice based on the searched frequency characteristics.
[0035]
When the parent device control unit 21A detects an operation for changing the frequency characteristic of the call voice during a call with the call partner through the key monitoring unit 42, the frequency characteristic change unit 46 changes the frequency characteristic of the call voice. have. The frequency characteristic change of the frequency characteristic changing unit 46 corresponds to selection of a frequency characteristic pattern to be described later.
[0036]
When the frequency characteristic changing unit 46 changes the frequency characteristic of the received voice in the frequency characteristic changing unit 46, the sound quality control unit 45 controls the master DSP 11A to control the sound quality of the received voice from the call partner based on the frequency characteristic. When the frequency characteristic of the transmitted voice is changed in the voice of the call by the receiver-side sound quality control unit 45A and the frequency characteristic changing unit 46, the quality of the transmitted voice to the other party is changed based on the frequency characteristic. In order to control, it has the transmission side sound quality control part 45B which controls main | base station DSP11A.
[0037]
When the frequency control unit 46 changes the frequency characteristic of the call voice with the call partner and then ends the call, the memory control unit 44 associates the frequency characteristic (received call) with the telephone number of the call partner. Side frequency characteristics and transmission side frequency characteristics) are registered in the parent device storage unit 20A.
[0038]
The base unit storage unit 20A includes an outgoing / incoming history memory unit 51A that stores and manages various outgoing and incoming call history data related to outgoing call history and incoming call history functions, and a telephone book memory that stores and manages various telephone book data related to the telephone book function For example, the outgoing / incoming call history date / time, the telephone number of the telephone call partner, the name or name of the telephone call partner, and the call voice corresponding to the telephone number of the telephone call partner to be described later It is assumed that the received voice and transmitted voice frequency characteristics are stored and managed. Similarly, the telephone directory data stores the telephone number of the other party, the name or name of the other party, the frequency characteristics of the received voice and the transmitted voice in the call voice corresponding to the telephone number of the other party. It shall be managed.
[0039]
Furthermore, the master unit control unit 21A detects the other party's telephone number by detecting the destination party's telephone number detecting unit 47 that detects the destination party's telephone number. A frequency characteristic search unit 48 for searching the frequency characteristic corresponding to the telephone number of the other party of the call from the telephone directory memory unit 52A or the outgoing / incoming call history memory unit 51A in the storage unit 20A is provided.
[0040]
In the sound quality control unit 45, when the frequency characteristic search unit 48 searches for the frequency characteristic corresponding to the telephone number of the other party, the received voice and the transmission side frequency characteristic are determined based on the reception side frequency characteristic and the transmission side frequency characteristic. The master DSP 11A is controlled to control the sound quality of the transmitted voice.
[0041]
The call destination telephone number detection unit 47 detects the telephone number of the call destination. For example, by using the caller number service function of the public network 2, the call destination telephone number detection unit 47 receives a call through the communication control unit 41. When detected, there are a case where a caller number associated with this incoming call is detected and a case where a telephone number of a call partner at the time of making a call is detected.
[0042]
Now, the frequency characteristics of the call voice that can be changed by the base phone 10A will be described. FIG. 4 is an explanatory diagram showing an example of a frequency characteristic pattern of call voice that can be changed by the base phone 10A.
[0043]
In base phone 10A, as shown in FIG. 4, “low frequency emphasis” for emphasizing the low frequency component of the call voice, “high frequency emphasis” for emphasizing the high frequency component of the call voice, and normal “normal” These frequency characteristic patterns can be switched and selected.
[0044]
FIG. 5 is an explanatory diagram simply showing an example of a table configuration inside the telephone directory memory unit 52A according to the present embodiment.
[0045]
The telephone directory memory unit 52A shown in FIG. 5 includes a call partner name 521, a call partner's telephone number 522, and a transmission-side frequency characteristic 523 indicating frequency characteristics related to a voice transmitted to the call partner during a call. It is assumed that the receiver side frequency characteristic 524 indicating the frequency characteristic related to the received voice from the other party at the time of a call is stored and managed. "The transmitting side frequency characteristic 523 at the time of a call is" high band emphasis ", the receiving side frequency characteristic 524 at the time of a call is" low band emphasis ", and the name 521" DDDD "has a telephone number 522 of" 047-382 ". -XXXX ”, the transmission-side frequency characteristic 523 during a call is“ normal ”, and the reception-side frequency characteristic 524 during a call is“ low-frequency emphasis ”.
[0046]
Next, a slave phone 10B that is wirelessly connected to the master phone 10A will be described. FIG. 7 is a block diagram showing a schematic configuration inside the handset telephone 10B. 7 has almost the same configuration and operation as the base phone 10A shown in FIG. 1, and therefore, redundant description thereof will be omitted.
[0047]
The handset telephone 10B shown in FIG. 7 includes a handset DSP 11B that controls the sound quality of the call voice with the call partner, a receiver unit 13B that is used to receive a call with the call partner, and a call with the call partner. A microphone unit 14B used for transmission, a speaker unit 15B that outputs sound through a speaker, a handset changeover switch 16B that switches input / output of the receiver unit 13B, the microphone unit 14B, and the speaker unit 15B, and a base phone 10A A slave unit radio unit 17B that controls a radio interface, a slave unit operation unit 18B that inputs various commands, a slave unit LCD 19B that displays various information, a slave unit storage unit 20B that stores various information, and this child And a handset-side controller 21B that controls the entire mobile phone 10B.
[0048]
The handset operating unit 18B includes a numeric keypad 31B, a voice switch 32B, an information input key 34B, an incoming / outgoing selection key 33B, a telephone directory key 35B, an outgoing / incoming history key 36B, and an outgoing key 37B.
[0049]
The telephone set described in the claims is the base phone 10A (slave phone 10B), the call means is the handset unit 13A, the speaker unit 14A and the speaker unit 15A (receiver unit 13B, microphone unit 14B and speaker unit 15B), frequency characteristic change The means is the frequency characteristic changing unit 46 in the base unit control unit 21A, the frequency characteristic storage unit is the base unit storage unit 20A (slave unit storage unit 20B), the communication operation detecting unit is the communication control unit 41 in the base unit control unit 21A, The key monitoring unit 42, the other party telephone number detection unit 47 (slave unit control unit 21B), the frequency characteristic search unit is the frequency characteristic search unit 48 (slave unit control unit 21B) in the base unit control unit 21A, and the sound quality control unit is The sound quality control unit 45, the reception side sound quality control unit 45A, the transmission side sound quality control unit 45B (slave unit control unit 21B) and the base unit DSP 11A (slave unit DSP 11B) in the base unit control unit 21A, frequency characteristics Control means corresponds to the memory control unit 44 in the base unit control section 21A (apparatus controller 21B).
[0050]
Next, the operation of the telephone system 1 showing this embodiment will be described. FIG. 8 is a flowchart showing the processing operation of base unit control unit 21A related to the frequency characteristic setting registration processing of base unit telephone 10A according to the present embodiment.
[0051]
In the frequency characteristic setting registration process shown in FIG. 8, the frequency characteristics of the received voice and the transmitted voice can be changed during a call with the other party, and the received voice and the transmitted voice are transmitted based on the changed frequency characteristics. This is a process of controlling the sound quality of the spoken voice and storing and managing (registering) the frequency characteristics of the received voice and the transmitted voice in association with the telephone number of the other party of the call according to the end of the call.
[0052]
The base unit control unit 21A shown in FIG. 8 determines whether or not the voice switch 31A is pressed during a call with the other party through the key monitoring unit 42 (step S11).
[0053]
If base unit controller 21A presses voice switch 31A during a call through key monitor 42, the frequency characteristic changing process shown in FIG. Migrate to The frequency characteristic changing process is a process of changing the received voice and / or transmitted voice frequency characteristics of the call voice and controlling the sound quality of the received voice and transmitted voice based on the changed frequency characteristics.
[0054]
After the frequency characteristic changing process shown in FIG. 9, base unit control unit 21A determines whether or not the call with the other party has been terminated through communication control unit 41 (step S13).
[0055]
The memory control unit 44 registers the frequency characteristic changed in the frequency characteristic changing process in the outgoing / incoming history memory unit 51A in association with the telephone number of the other party of the call if the call with the other party is finished. (Step S14).
[0056]
Further, the memory control unit 44 starts a telephone directory acceptance registration timer that measures the time for monitoring the pressing of the telephone directory key 35A (step S15).
[0057]
Base unit control unit 21A determines whether or not telephone book key 35A is pressed through key monitoring unit 42 (step S16).
[0058]
If the phone book key 35A is pressed, the display control unit 43 of the base unit control unit 21A displays the registered name from the phone book memory unit 52A through the memory control unit 44 on the base unit LCD 19A. The name registered in the book memory unit 52A prompts the user to specify the name to be registered (step S17).
[0059]
The base unit control unit 21A determines whether or not the designation of the name to be registered is completed from the names registered in the telephone directory memory unit 52A through the key monitoring unit 42 (step S18).
[0060]
When the designation of the name to be registered is completed, base unit control unit 21A determines whether voice switch 32A has been pressed through key monitoring unit 42 (step S19).
[0061]
If the voice switch 32A is pressed, the memory control unit 44 corresponds to the name of the registration target with the frequency characteristics (receiving side frequency characteristics and transmitting side frequency characteristics) changed in the frequency characteristic changing process in step S12. At the same time, registration in the telephone directory memory unit 52A (step S20) completes this processing operation.
[0062]
If the main unit control unit 21A does not press the voice switch 32A during the call with the call partner in step S11, the call to the call partner is not made without proceeding to the frequency characteristic changing process shown in FIG. In order to monitor whether or not the talk is over, the process proceeds to step S13.
[0063]
Further, the communication control unit 41 of the base unit control unit 21A determines whether or not the frequency characteristic change activation DTMF signal has been received unless the call with the communication partner is terminated in step S13 (step S13). S22). The frequency characteristic change activation DTMF signal is a special number dial number from the other party, for example, “5 #”.
[0064]
When receiving the frequency characteristic change starting DTMF signal in step S22, base unit control unit 21A starts the external DTMF signal frequency characteristic changing process shown in FIG. 10 (step S23), and performs this external DTMF signal frequency characteristic changing process. After completion, the process proceeds to step S11 to monitor the pressing of the voice switch 32A. The external DTMF signal frequency characteristic changing process is to change the frequency characteristics of the transmitted voice and received voice of the base phone by remote control from the other party, and based on the changed frequency characteristics, the received voice and the transmitted voice are changed. This process controls the sound quality of the voice.
[0065]
If base unit control section 21A has not received the frequency characteristic change activation DTMF signal in step S22, it proceeds to step S11 to monitor the depression of voice switch 32A.
[0066]
If the telephone book key 35A is not pressed in step S16, base unit control unit 21A determines whether or not the telephone book acceptance registration timer started in step S15 has expired (step S21).
[0067]
If the telephone directory acceptance registration timer has not timed up, base unit controller 21A proceeds to step S16 to monitor whether telephone directory key 35A has been pressed.
[0068]
In addition, if the telephone directory reception registration timer has timed out in step S21, base unit control section 21A performs this processing operation without registering the frequency characteristics changed in step S12 in telephone directory memory section 52A. finish.
[0069]
In addition, if the designation of the registration target name is not completed in step S18 or if the voice switch 32A is not pressed in step S19, the master control unit 21A prompts the designation of the registration target name. The process proceeds to step S17.
[0070]
According to the frequency characteristic setting registration process shown in FIG. 8, when the frequency characteristic of the call voice is changed during a call with the other party, according to the end of the call, it is associated with the telephone number of the other party. Since the frequency characteristics (received-side frequency characteristics and transmitted-side frequency characteristics) of the call voice (received voice and transmitted voice) are registered in the outgoing / incoming history memory unit 51A and / or the telephone directory memory unit 52A, it is simple. By operation, the frequency characteristics of the call voice can be stored and managed for each telephone number.
[0071]
Next, the frequency characteristic changing process in step S12 shown in FIG. 8 will be described. FIG. 9 is a flowchart showing the processing operation of the base unit control unit 21A related to the frequency characteristic changing process.
[0072]
In FIG. 9, when the voice control 32A is pressed during a call in step S11 shown in FIG. 8, the display control unit 43 of the base unit control unit 21A starts to start the frequency characteristic changing process, as shown in FIG. The receiving side frequency characteristic currently set is displayed on the master LCD 19A (step S31). Even if the frequency characteristics of the call voice are not stored and managed, a “normal” frequency characteristic pattern is set by default. Further, the user can visually recognize that the receiving-side frequency characteristic can be changed at present based on the display content of base unit LCD 19A in step S31.
[0073]
The base unit control unit 21A determines whether or not the reception / transmission selection key 33A is pressed through the key monitoring unit 42 (step S32).
[0074]
If master / receiver selection key 33A has not been pressed, base unit controller 21A determines whether voice switch 32A has been pressed (step S33).
[0075]
If the voice switch 32A is pressed, the frequency characteristic changing unit 46 of the base unit control unit 21A changes the setting of the current receiver frequency characteristic (step S34). The frequency characteristic changing unit 46 changes the frequency characteristic pattern in a predetermined order such as “normal” → “high frequency emphasis” → “low frequency emphasis” → “normal” → “high frequency emphasis” →. is there.
[0076]
When the setting of the reception side frequency characteristic is changed, the display control unit 43 of the base unit control unit 21A displays the changed reception side frequency characteristic on the base unit LCD 19A (step S35). Note that the user can visually recognize the receiving-side frequency characteristics that are currently set based on the display content of the master LCD 19A.
[0077]
Furthermore, base unit control unit 21A determines whether or not a return operation has been detected (step S36). Note that the return operation is an operation that exits the frequency characteristic changing process, and includes, for example, a call ending operation and a frequency characteristic changing operation ending operation.
[0078]
If the base unit control unit 21A detects a return operation in step S35, the base unit control unit 21A exits the frequency characteristic changing process and proceeds to step S13 shown in FIG.
[0079]
If no return operation is detected in step S35, base unit control unit 21A proceeds to step S32 in order to monitor the pressing of reception / transmission selection key 33A.
[0080]
Furthermore, if the voice switch 32A is not pressed in step S33, the base unit control unit 21A proceeds to step S36 to monitor the return operation. In step S33, every time the voice switch 32A is pressed, the frequency characteristic pattern of the receiving side frequency characteristic is set and changed in a predetermined order direction.
[0081]
If the reception / transmission selection key 33A is pressed in step S32, the display control unit 43 of the base unit control unit 21A displays the currently set transmission side frequency characteristic on the base unit LCD 19A (step S37). ). Note that the user can visually recognize that the transmission-side frequency characteristics can be changed based on the display content of the master LCD 19A.
[0082]
The base unit control unit 21A determines whether or not the reception / transmission selection key 33A has been pressed through the key monitoring unit 42 (step S38).
[0083]
If the reception / transmission selection key 33A is pressed, base unit control unit 21A proceeds to step S31 to display the reception-side frequency characteristics on base unit LCD 19A.
[0084]
In addition, if the reception / transmission selection key 33A is not pressed in step S38, base unit control unit 21A determines whether voice switch 32A is pressed through key monitoring unit 42 (step S39).
[0085]
If the voice switch 32A is depressed, the frequency characteristic changing unit 46 of the base unit control unit 21A changes the current transmission side frequency characteristic in the predetermined order direction (step S40).
[0086]
When the transmission side frequency characteristic is set and changed, the display control unit 43 of the base unit control unit 21A displays the changed transmission side frequency characteristic on the base unit LCD 19A (step S41). Note that the user can visually recognize the transmission-side frequency characteristics that are currently set based on the display content of the main unit LCD 19A.
[0087]
Furthermore, base unit control unit 21A determines whether or not a return operation has been detected (step S42). If the base unit control unit 21A detects a return operation in step S42, the base unit control unit 21 exits the frequency characteristic changing process and proceeds to step S13 shown in FIG.
[0088]
If no return operation is detected in step S42, base unit control unit 21A proceeds to step S38 to monitor whether or not the reception / transmission selection key 33A has been pressed.
[0089]
Furthermore, if the voice switch 32A is not pressed in step S39, the base unit control unit 21A proceeds to step S42 to monitor the return operation. In step S39, every time the voice switch 32A is pressed, the frequency characteristic pattern of the transmission side frequency characteristic is set and changed in a predetermined order direction.
[0090]
According to the frequency characteristic changing process shown in FIG. 9, during the call with the other party, the frequency characteristics of the received voice and the transmitted voice can be changed in the voice of the call with the other party. Since the sound quality of the transmission voice and the reception voice can be controlled based on the frequency characteristics of the reception voice and the transmission voice, the user can not only hear the frequency characteristic of the reception voice while talking, but also the transmission voice. The frequency characteristics of audio can be changed with a simple operation.
[0091]
In the frequency characteristic changing process shown in FIG. 9, it is possible to change the frequency characteristics of the received voice and the transmitted voice among the voices of the call with the other party of call through the base unit operation unit 18A of the base phone 10A. As described above, for example, by using a remote operation from the other party, for example, by using a DTMF signal, the frequency characteristics of the received voice and the transmitted voice may be changed among the voices of the call with the other party. The external DTMF signal frequency characteristic changing process (step S23 shown in FIG. 8) in this case will be described. FIG. 10 is a flowchart showing the processing operation inside base unit control unit 21A related to the external DTMF signal frequency characteristic changing process.
[0092]
The external DTMF signal frequency characteristic changing process shown in FIG. 10 is performed when it is determined in step S22 shown in FIG. 8 that the frequency characteristic change starting DTMF signal (dial number “# 5”) has been received from the other party. Starts up.
[0093]
In FIG. 10, when starting the external DTMF signal frequency characteristic changing process, the communication control part 41 of the base unit control part 21A determines whether or not a receiving side frequency characteristic changing DTMF signal has been received from the other party (step S51). ). The receiving side frequency characteristic changing DTMF signal is a DTMF signal that activates changing the receiving side frequency characteristic, for example, the dial number “# 6”.
[0094]
If the receiving side frequency characteristic changing DTMF signal is received, the frequency characteristic changing unit 46 changes the current receiving side frequency characteristic in the predetermined order direction (step S52).
[0095]
When the setting of the reception side frequency characteristic is changed, the display control unit 43 displays the changed reception side frequency characteristic on the base LCD 19A (step S53). Note that the user can visually recognize the receiving-side frequency characteristics that are currently set based on the display content of the master LCD 19A.
[0096]
Further, the communication control unit 41 determines whether or not a return detection DTMF signal has been received from the call partner (step S54). The return detection DTMF signal is a DTMF signal for ending the external DTMF signal frequency characteristic changing process, for example, the dial number “# 8”.
[0097]
If the base unit control unit 21A receives the return detection DTMF signal, the base unit control unit 21A ends the external DTMF signal frequency characteristic changing process and proceeds to step S11 shown in FIG.
[0098]
If base unit control section 21A has not received a return detection DTMF signal in step S54, it proceeds to step S51 in order to monitor further reception of the reception side frequency characteristic changing DTMF signal.
[0099]
That is, the main unit control unit 21A of the main unit telephone 10A sequentially changes the frequency characteristic pattern of the receiving side frequency characteristic in a predetermined order direction every time it receives a receiving side frequency characteristic changing DTMF signal from the call partner. It is.
[0100]
Further, the communication control unit 41 determines whether or not the transmission side frequency characteristic changing DTMF signal has been received unless the receiving side frequency characteristic changing DTMF signal is received in step S51 (step S55). The transmission-side frequency characteristic changing DTMF signal is a DTMF signal that starts changing the transmission-side frequency characteristic, for example, the dial number “# 7”.
[0101]
If the frequency characteristic changing unit 46 has received the transmitting side frequency characteristic changing DTMF signal in step S55, the frequency characteristic changing unit 46 changes the setting of the current transmitting side frequency characteristic in the predetermined order direction (step S56).
[0102]
When the setting of the transmission side frequency characteristic is changed, the display control unit 43 displays the changed transmission side frequency characteristic on the master LCD 19A (step S57). Note that the user can visually recognize the transmission-side frequency characteristics that are currently set based on the display content of the main unit LCD 19A.
[0103]
Further, the communication control unit 41 determines whether or not a return detection DTMF signal has been received from the call partner (step S58).
[0104]
If the base unit control unit 21A receives the return detection DTMF signal, the base unit control unit 21A ends the external DTMF signal frequency characteristic changing process and proceeds to step S11 shown in FIG.
[0105]
If the communication control unit 41 does not receive the return detection DTMF signal in step S58, the communication control unit 41 proceeds to step S55 in order to monitor the reception of the further transmission side frequency characteristic changing DTMF signal.
[0106]
That is, the base unit control unit 21A of the base phone 10A sequentially changes the frequency characteristic pattern of the receiver side frequency characteristic in a predetermined order direction every time the transmitter side frequency characteristic changing DTMF signal is received from the call partner. It is.
[0107]
According to the external DTMF signal frequency characteristic processing shown in FIG. 10, the received voice and the transmitted voice of the main phone 10A among the voices of the telephone call with the other party by remote control using the DTMF signal from the other party. Both frequency characteristics can be changed, and the quality of the received voice and the transmitted voice can be controlled.
[0108]
Next, in the frequency characteristic setting registration process shown in FIG. 8, the frequency of the voice of the call with the call partner is registered in the outgoing / incoming history memory unit 51A and the telephone directory memory unit 52A, and the call destination by the main phone 10A is registered. The operation of sending a call to will be described. FIG. 11 is a flowchart showing the processing operation of the base unit control unit 21A related to the outgoing sound quality setting process.
[0109]
The sound quality setting process for outgoing call shown in FIG. 11 is a call voice (corresponding to this telephone number (when the outgoing call operation is executed for the telephone number registered in the outgoing / incoming history memory unit 51A or the telephone directory memory unit 52A). This is processing for reading the frequency characteristics of the received voice and the transmitted voice) and automatically setting the sound quality of the call voice (received voice and transmitted voice) based on the read frequency characteristics.
[0110]
The base unit control unit 21A shown in FIG. 11 determines whether or not the designation operation to the call partner by the phone book key 35A is detected through the key monitoring unit 42 (step S61).
[0111]
If base unit control section 21A detects a designation operation for the other party of telephone call using key book key 35A, it determines whether or not the designation operation has been completed (step S62).
[0112]
If the designation operation is completed, base unit control unit 21A determines whether or not call key 37A has been pressed through key monitoring unit 42 (step S63).
[0113]
If the outgoing call key 37A is pressed, the memory control unit 44 of the base unit control unit 21A, through the frequency characteristic search unit 48, the frequency number of the designated name and the frequency characteristic of the call voice, that is, the receiving side frequency characteristic. The transmission side frequency characteristics are read from the telephone directory memory unit 52A (step S64).
[0114]
The receiver-side sound quality control unit 45A of the sound quality control unit 45 of the parent device control unit 21A controls the parent device DSP 11A to change the sound quality of the received voice based on the reception-side frequency characteristics of the call voice, and the sound quality control unit 45. The transmission side sound quality control unit 45B controls the master DSP 11A to change the sound quality of the transmission voice based on the transmission side frequency characteristic of the call voice (step S65). That is, in the base phone 10A, the sound quality of the received voice and the transmitted voice having the frequency characteristics corresponding to the call partner is set.
[0115]
The communication control unit 41 of the base unit control unit 21A executes the outgoing call operation based on the telephone number of the call partner read out in step S64 (step S66), and ends this processing operation.
[0116]
In addition, in step S61, base unit control unit 21A determines whether the designation operation by call history key 36A has been detected unless the designation operation by telephone book key 35A is detected through key monitoring unit 42 (step S61). Step S67).
[0117]
If base unit control section 21A detects a designation operation for the other party of call using call origination / reception history key 36A, it determines whether or not the designation operation has been completed (step S68).
[0118]
If the designation operation is completed, base unit control unit 21A determines whether or not call key 37A has been pressed through key monitoring unit 42 (step S69).
[0119]
If the outgoing call key 37A is pressed, the memory control unit 44 displays the telephone number of the designated name, the reception side frequency characteristic of the call voice, and the transmission side frequency characteristic through the frequency characteristic search unit 48. Reading from the memory unit 51A (step S70), the process proceeds to step S65 in order to control the master DSP 11A based on the reception side frequency characteristics and the transmission side frequency characteristics.
[0120]
If the base key control unit 21A does not press the transmission key 37A in step S63 or step S69, the processing operation of the sound quality setting process for transmission ends.
[0121]
According to the outgoing sound quality setting process shown in FIG. 11, when a call operation is performed for a telephone number registered in the telephone directory memory unit 52A or the outgoing / incoming call history memory unit 51A, the receiving side frequency corresponding to the telephone number is executed. Since the sound quality of the transmitted voice and the received voice is set based on the read receiver frequency characteristic and the transmitted frequency characteristic, the user can set the phone book function and the outgoing frequency characteristic. The sound quality of the transmitted voice and the received voice of the other party can be automatically set according to the telephone call by the incoming call history function.
[0122]
Next, from the call destination by the main phone 10A after the frequency characteristics of the call voice with the call partner are registered in the outgoing / incoming history memory unit 51A and the telephone directory memory unit 52A in the frequency characteristic setting registration process shown in FIG. The incoming call operation will be described. FIG. 12 is a flowchart showing the processing operation of the base unit control unit 21A related to the incoming sound quality setting process.
[0123]
The incoming call sound quality setting process shown in FIG. 12 is a call corresponding to the telephone number of the other party when a call operation from the other party registered in the outgoing / incoming history memory unit 51A or the telephone directory memory unit 52A is detected. This is a process of reading the frequency characteristics of the voice and automatically setting the sound quality of the call voice based on the read frequency characteristics.
[0124]
The communication control unit 41 of the base unit control unit 21A shown in FIG. 12 determines whether or not an incoming call is detected through the public network 2 (step S81).
[0125]
If the incoming call is detected in step S81, the communication control unit 41 determines whether or not the caller ID of the other party corresponding to the incoming call has been detected (step S82).
[0126]
If the memory control unit 44 of the base unit control unit 21A detects the caller number of the other party, it determines whether or not the telephone number corresponding to the caller number can be retrieved from the phone book memory unit 52A. (Step S83).
[0127]
If the memory control unit 44 can retrieve the telephone number corresponding to the caller number from the telephone directory memory unit 52A, the memory control unit 44 transmits the call voice corresponding to the telephone number from the telephone directory memory unit 52A through the frequency characteristic retrieval unit 48. The frequency characteristics, for example, the reception side frequency characteristic and the transmission side frequency characteristic are read out (step S84).
[0128]
The receiver-side sound quality control unit 45A of the sound quality control unit 45 of the parent device control unit 21A controls the parent device DSP 11A so as to change the sound quality of the received voice based on the receiver-side frequency characteristics, and also transmits the sound side of the sound control unit. The sound quality control unit 45B controls the master DSP 11A so as to change the sound quality of the transmitted voice based on the transmission-side frequency characteristics (step S85), thereby terminating the processing operation of the incoming sound quality setting process.
[0129]
The communication control unit 41 does not detect the incoming call in step S81, or does not detect the caller number in step S82, or sets the telephone number corresponding to the caller number in the phone book in step S83. If the search cannot be performed from the memory unit 52A, the processing operation of the incoming sound quality setting process is terminated.
[0130]
According to the incoming sound quality setting process shown in FIG. 12, when an incoming call from a call partner registered in the telephone directory memory unit 52A is detected, a caller number related to this call is detected and the caller number corresponding to this caller number is detected. The reception side frequency characteristic and the transmission side frequency characteristic are read from the telephone directory memory unit 52A, and the sound quality of the reception voice and the transmission voice is automatically set based on the reception side frequency characteristic and the transmission side frequency characteristic. Therefore, when the user detects an incoming call, the user can automatically set the sound quality of the transmitted voice and the received voice for the called party.
[0131]
According to the incoming sound quality setting process shown in FIG. 12, when an incoming call from a call partner registered in the phone book memory unit 52A is detected, a call of the call partner registered in the phone book memory unit 52A is detected. Although the frequency characteristic corresponding to the number is set, even if a telephone call from a call partner registered in the call history memory unit 51A is detected, the call partner registered in the call history memory unit 51A Needless to say, the frequency characteristic corresponding to the previous telephone number may be set.
[0132]
According to the present embodiment, the frequency characteristics relating to the call voice with the other party and the telephone number of the other party are stored and managed in association with the outgoing / incoming history memory unit 51A and the telephone directory memory unit 52A. When a call incoming or outgoing call is detected, the frequency characteristic corresponding to the telephone number of the other party is searched, and the sound quality of the call voice with the other party is controlled based on the searched frequency characteristic. When you talk to the other party with the same phone number again, the voice quality is automatically controlled based on the frequency characteristics corresponding to the other party's phone number. As a result, the operability related to the change of the frequency characteristic can be remarkably improved.
[0133]
Further, according to the present embodiment, when a frequency characteristic corresponding to the telephone number of the call partner is searched, the voice received from the call partner of the call voice with the call partner based on this frequency characteristic Because when controlling the other party with the same phone number again, the incoming voice is controlled to control the quality of the incoming voice from the other party. Therefore, it is not necessary to perform an operation related to the change of the frequency characteristic, and as a result, the operability related to the change of the frequency characteristic can be remarkably improved, and the optimum received voice can be provided.
[0134]
Furthermore, according to the present embodiment, when a frequency characteristic corresponding to the telephone number of the call partner is searched, out of the call voice with the call partner based on this frequency characteristic, the voice to be sent to this call partner To control the sound quality of the voice sent to the other party when talking to the other party with the same phone number again. Therefore, there is no need to perform operations related to changing the frequency characteristics of the transmitted voice.As a result, the operability related to changing the frequency characteristics can be remarkably improved, and the optimal voice (transmission) Spoken voice).
[0135]
According to the present embodiment, when a button operation for changing frequency characteristics is detected during a call with a call partner, the frequency characteristic related to the call voice with the call partner is changed. It is possible to easily change the frequency characteristics related to the call voice.
[0136]
According to the present embodiment, when the frequency characteristic related to the call voice with the call partner is changed, the frequency characteristic related to the call voice of the call partner (the receiving side frequency) according to the end of the call with the call partner. Characteristics and transmission side frequency characteristics) and the telephone number of the other party of the call are associated with each other and registered in the outgoing / incoming history memory unit 51A and the telephone directory memory unit 52A. When the frequency characteristic concerned is changed, the telephone number and frequency characteristic of the call partner can be easily registered according to the end of the call with the call partner.
[0137]
According to the present embodiment, when a DTMF signal for changing frequency characteristics from a call partner is detected, the frequency characteristics (receiver-side frequency characteristic and transmitter-side frequency characteristic) related to the call voice with the call partner are changed. As a result, it is possible to easily change the frequency characteristics related to the voice of the call with the other party by remote operation even from the other party. For example, it is very convenient for a telephone user who cannot change the frequency characteristic because the frequency characteristic can be changed by remote operation from the other party.
[0138]
Furthermore, according to the present embodiment, when the caller number of the call partner associated with the incoming call operation from the call partner is detected, the frequency characteristic corresponding to the telephone number of this caller number is displayed as the call history memory unit 51A or Since the quality of the call voice (received voice and sent voice) with the other party is controlled based on the frequency characteristics, the frequency of the call voice corresponding to the other party is retrieved. Characteristics can be set automatically.
[0139]
According to the present embodiment, when a call operation to a call partner is detected, a frequency characteristic corresponding to the telephone number of the call partner that is the call partner is retrieved from the call history memory unit 51A and the phone book memory unit 52A. Therefore, the sound quality of the call voice (received voice and sent voice) with the other party is controlled based on this frequency characteristic, so the frequency characteristic of the call voice corresponding to the other party (receiver side frequency characteristic and The frequency characteristics on the transmitting side can be set automatically.
[0140]
In the above embodiment, the base phone 10A shown in FIG. 1 has been described as an example. However, the mobile phone 10B shown in FIG. The frequency characteristic changing function for changing the frequency characteristics of the received voice and the transmitted voice, the telephone number of the other party of the call, and the frequency characteristics of the received voice and the transmitted voice are associated with each other in the slave unit storage unit 20B. It has a frequency characteristic registration function for storing and managing, and a frequency characteristic setting function for automatically setting the frequency characteristics of the received voice and the transmitted voice corresponding to the other party of the call when a call incoming or outgoing call is detected. Needless to say, it is needless to say that the same effect as that described above can be obtained with respect to the handset telephone 10B.
[0141]
In the above embodiment, the master DSP 11A and the slave DSP 11B have been described as an example of a function for changing the sound quality of a call voice in a software manner. However, as shown in FIG. 13, a plurality of filters having different filter characteristics are used. 71A and a filter selection unit 72A that switches and selects these filters 71A, and a sound quality changing unit 70 that changes the sound quality of the call voice by the filter 71A selected by the filter selection unit 72A is provided. However, it goes without saying that the same effect can be obtained.
[0142]
In the above-described embodiment, the frequency characteristic pattern of the received voice and the transmitted voice has three stages of “high band emphasis”, “normal”, and “low band emphasis”. Needless to say, fine frequency characteristics can be set. Further, instead of selecting and setting the frequency characteristic pattern, it may be possible to change the desired frequency characteristic in an analog manner. In this case, it goes without saying that a finer frequency characteristic can be set. .
[0143]
【The invention's effect】
According to the telephone of the present invention configured as described above, the frequency characteristics related to the voice of communication with the call partner and the telephone number of the call partner are stored and managed in association with each other. When the communication operation is detected, the frequency characteristic corresponding to the telephone number of the other party is searched, and the sound quality of the call voice with the other party is controlled based on the searched frequency characteristic. When calling with the other party, the voice quality is automatically controlled based on the frequency characteristics corresponding to the telephone number of the other party, so there is no need to perform operations related to changing the frequency characteristics. As a result, the operability related to the change of the frequency characteristics can be remarkably improved.
[0144]
According to the telephone of the present invention, when the frequency characteristic is searched by the frequency characteristic search means, the voice quality of the voice received from the call partner is controlled based on the frequency characteristic. Therefore, when talking to the other party with the same phone number again, the frequency characteristics of the received voice are controlled in order to control the quality of the received voice from the other party. It is not necessary to perform an operation related to the change, and as a result, the operability related to the frequency characteristic change can be remarkably improved, and an optimum received voice can be provided.
[0145]
According to the telephone of the present invention, when the frequency characteristic is searched by the frequency characteristic search means, the sound quality of the voice transmitted to the call partner is controlled based on the frequency characteristic. Therefore, when you talk to the other party with the same phone number again, you can control the quality of the voice sent to the other party. There is no need to perform operations related to changing the frequency characteristics, and as a result, the operability related to changing the frequency characteristics can be remarkably improved, and the optimum call voice (transmitted voice) can be provided to the other party. can do.
[0146]
According to the telephone of the present invention, when a predetermined operation is detected during a call with the other party, the frequency characteristic related to the call voice with the other party is changed. By the button operation, the frequency characteristics related to the voice of the call with the other party can be easily changed.
[0147]
According to the telephone of the present invention, when the frequency characteristic related to the call voice with the call partner is changed, the frequency characteristic related to the call voice of the call partner and the call according to the end of the call with the call partner Since the phone number of the other party is associated and stored in the frequency characteristic storage means, when the frequency characteristic related to the call voice with the other party is changed, according to the end of the call with the other party, The telephone number and frequency characteristic of the other party can be easily stored.
[0148]
According to the telephone of the present invention, when the predetermined DTMF signal from the call partner is detected, the frequency characteristic related to the call voice with the call partner is changed, so that the call partner can be remotely operated even from the call partner. It is possible to easily change the frequency characteristics related to the call voice. For example, it is very convenient for a telephone user who cannot change the frequency characteristic because the frequency characteristic can be changed by remote operation from the other party.
[0149]
According to the telephone of the present invention, when detecting the caller number notification of the call partner associated with the incoming call operation from the call partner, the frequency characteristic corresponding to the telephone number of this caller number is retrieved from the frequency characteristic storage means, Since the sound quality of the call voice with the other party is controlled based on this frequency characteristic, the frequency characteristic of the call voice corresponding to the other party can be automatically set.
[0150]
According to the telephone of the present invention, when detecting a call operation to the call partner, the frequency characteristic corresponding to the telephone number of the call partner that is the call partner is retrieved from the frequency characteristic storage means, and based on this frequency characteristic Since the sound quality of the call voice with the other party is controlled, the frequency characteristic of the call voice corresponding to the other party can be automatically set.
[0151]
According to the sound quality control method for a telephone of the present invention, the frequency characteristics related to the call voice with the call partner and the telephone number of the call partner are stored in association with each other, and the communication operation with the call partner is performed. When detected, the frequency characteristic corresponding to the telephone number of the call partner is searched, and the sound quality of the call voice with the call partner is controlled based on the searched frequency characteristic. When you call again, the voice quality is automatically controlled based on the frequency characteristics corresponding to the telephone number of the other party, so there is no need to perform operations related to changing the frequency characteristics. The operability related to the change of the frequency characteristics can be remarkably improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration inside a parent phone of a telephone system showing an embodiment of the telephone of the present invention. FIG. 2 shows an external configuration of the parent phone and a parent of the parent phone according to the embodiment. FIG. 3 is a block diagram showing a schematic configuration inside the base unit control unit of the base phone relating to the present embodiment. FIG. 4 is a frequency characteristic of call voice according to the embodiment. FIG. 5 is an explanatory diagram simply showing a table configuration of a telephone directory memory in a base unit storage unit of the base phone related to the present embodiment. FIG. 6 is a base phone related to the present embodiment. Explanatory drawing showing the display contents of the parent device LCD a) When the transmission side frequency characteristic is set to “Normal” b) When the transmission side frequency characteristic is set to “High frequency emphasis” c) The transmission side frequency characteristic is set to “Low” When “Area emphasis” is set FIG. 7 is a block diagram showing a schematic configuration inside the handset phone according to the present embodiment. FIG. 8 shows processing operations of the base unit control unit related to the frequency characteristic setting registration processing of the base phone related to the present embodiment. FIG. 9 is a flowchart showing the processing operation of the base unit control unit related to the frequency characteristic changing process of the base phone according to the embodiment. FIG. 10 is an external DTMF signal of the base phone according to the embodiment. FIG. 11 is a flowchart showing the processing operation of the base unit control unit related to the sound quality setting processing for outgoing call of the base unit telephone relating to the present embodiment. FIG. 12 is a flowchart showing the processing operation of the master control unit related to the incoming sound quality setting processing of the master phone relating to the present embodiment. FIG. 13 shows an alternative to the master DSP of the master phone relating to the present embodiment. Voice change Block diagram showing an internal schematic configuration EXPLANATION OF REFERENCE NUMERALS
10A Base phone (telephone)
11A Master DSP (sound quality control means)
13A Handset (calling means)
20A Master unit storage (frequency characteristic storage means)
41 Communication control unit (communication operation detection means)
42 Key monitoring unit (communication operation detection means)
44 Memory control unit (frequency characteristic storage control means)
45 Sound quality control unit (sound quality control means)
45A Receiver sound quality control unit (sound quality control means)
45B Transmission side sound quality control unit (sound quality control means)
46 Frequency characteristic changing section (frequency characteristic changing means)
47 Called party telephone number detection unit (communication operation detection means)
48 Frequency characteristic search unit (Frequency characteristic search means)

Claims (3)

Stores and manages outgoing / incoming call history date / time as call history data, phone number of call partner, name or name of call partner, frequency characteristics of received voice and sent voice, and call destination phone as phone book data A frequency characteristic storage means for storing and managing the frequency , the name or name of the other party, the received voice and the transmitted voice ;
A means of calling to talk to the other party,
DTMF signal every time a predetermined operation for instructing change of frequency characteristics is performed by the operator during a call by the calling means, and before receiving a DTMF signal indicating completion of frequency characteristic change processing from the other party. Each time a frequency characteristic change request is received, the frequency characteristic related to the received voice from the call partner or the frequency characteristic related to the transmitted voice to the call partner is set to normal, high frequency emphasis, low frequency emphasis Frequency characteristic changing means for sequentially changing;
When the frequency characteristic is changed during the call by the calling means , the frequency characteristic related to the received voice and the frequency characteristic related to the transmitted voice at the time when the call is ended are set as the telephone numbers of the other party in the call history data. Correspondingly storing and managing , and when the registered name or name in the phone book data is selected by the operator, the frequency characteristics related to the received voice and the frequency characteristics related to the transmitted voice when the call is terminated Frequency characteristic storage means for storing and managing in association with the selected name or name of the telephone directory data ;
A communication operation detecting means for detecting a communication operation with the communication partner;
When the communication operation detecting means detects a call operation based on the phone book data, the frequency characteristics related to the received voice and the frequency characteristics related to the transmitted voice corresponding to the telephone number of the phone book data are searched from the phone book data, When the communication operation detecting means detects a call operation based on the outgoing / incoming history data, the frequency characteristics relating to the received voice and the frequency characteristics relating to the outgoing voice corresponding to the telephone number of the outgoing / incoming history data are obtained from the outgoing / incoming history data. When the communication operation detecting means detects an incoming call from the telephone number registered in the telephone book data or the outgoing / incoming call history data, the incoming call corresponding to the telephone number of the telephone book data or the outgoing / incoming call history data A frequency characteristic search means for searching for a frequency characteristic related to voice and a frequency characteristic related to transmitted voice ;
Based on the frequency characteristic related to the received voice searched by the frequency characteristic search means, the received voice from the call partner is controlled in sound quality, and the transmission to the call destination is performed based on the searched frequency characteristic related to the transmitted voice. A telephone having a sound quality control means for controlling the sound quality of speech.   2. The telephone according to claim 1, further comprising: a display unit that displays a frequency characteristic related to a received voice from the call partner or a frequency characteristic related to a voice transmitted to the call partner on a display unit. Stores and manages outgoing / incoming call history date / time as call history data, phone number of call partner, name or name of call partner, frequency characteristics of received voice and sent voice, and call destination phone as phone book data Number, name or name of the other party, frequency characteristics of received voice and transmitted voice are stored and managed, and every time a predetermined operation is performed by the operator to change the frequency characteristics during a call, and from the other party Every time a frequency characteristic change request is received by the DTMF signal before receiving the DTMF signal indicating the end of the frequency characteristic change processing, the frequency characteristic related to the received voice from the call partner or the call destination Seki frequency characteristics related to the transmission voice normal, high frequency emphasis is changed to the prescribed order of the low-frequency emphasis, the frequency characteristic and transmitted voice concerning the received voice at the time the call is completed With a frequency characteristic storage managed in association with the telephone number of the calling incoming history data other party that the call when the registered name or names of the phonebook data has been selected by the operator has been completed The frequency characteristics related to the received voice at the time and the frequency characteristics related to the transmitted voice are stored and managed in association with the selected name or name of the telephone book data, and when the call operation by the telephone book data is detected, the telephone The frequency characteristics related to the received voice corresponding to the telephone number of the book data and the frequency characteristics related to the transmitted voice are searched from the telephone book data, and when the call operation based on the call history data is detected by the communication operation detecting means, Search frequency characteristics related to the frequency characteristics and transmitting voice concerning the received sound corresponding to the telephone number of the call history data from the Des call history data When the communication operation detecting means detects an incoming call from the telephone number registered in the telephone directory data or the outgoing / incoming call history data, the received voice corresponding to the telephone number of the telephone directory data or the outgoing / incoming call history data is displayed. The frequency characteristics related to the transmitted voice and the frequency characteristics related to the transmitted voice are searched, and the received voice from the other party is controlled based on the searched frequency characteristics related to the received voice, and the frequency characteristics related to the searched transmitted voice are changed. A sound quality control method for a telephone, characterized in that the sound quality of a voice transmitted to the other party is controlled based on the sound quality.

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