JP2013126001A - System and method for audio reproduction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system and method for audio reproduction which can be used as a hands-free telephone and perform stereo reproduction even in a configuration in which a portable terminal and a tablet terminal are integrated.SOLUTION: A tablet terminal includes an interface connected to a portable terminal so as to perform transmission and reception of information with the portable terminal, a speaker for outputting audio, and a display part having a screen size larger than that of the portable terminal. The portable terminal includes: a receiver for outputting the audio; an interface connected to external equipment so as to perform transmission and reception of information with the external equipment; volume amplification means and volume setting means which make audio corresponding to the volume output from the speaker provided in the tablet terminal output from the receiver, and outputs the audio corresponding to the volume of the speaker from the receiver when connecting with a tablet device through the interface.

Description

  The present invention relates to a sound reproduction system and method for outputting sound of a mobile terminal with an external device.

  In recent years, high-functional portable terminals called smartphones having a telephone function and an information processing function have become widespread. Smartphones are small and lightweight, and have the advantage of being easy to carry. For example, you may want to use a larger screen, such as watching TV broadcasts or moving images, or calling hands-free while watching the other person's face. is there.

  In that case, the smartphone is connected to a personal computer such as a stationary type, a notebook type, or a tablet type or a television receiver having a larger screen size than the smartphone, and the display image of the smartphone is displayed on the screen of those external devices. It is conceivable to cause the external device to reproduce sound while displaying.

  Note that the hands-free telephone is described in Patent Document 1, for example. In addition, a configuration in which the mobile terminal is mounted on another device and used is described in, for example, Patent Document 2, and a technique for enabling the mobile terminal to make a hands-free call is described in, for example, Patent Documents 3 and 4. .

  Patent Document 1 describes that the gain of an amplifier that amplifies received voice is changed according to whether a hands-free microphone or an external speaker is connected.

  Patent Document 2 discloses that the operation of the car stereo can be performed by attaching the mobile terminal to the car stereo device body, and the operation of the car stereo is disabled when the mobile terminal is not attached to the car stereo device body. It is described that the car stereo is prevented from being stolen.

  Patent Document 3 discloses a handheld terminal for a portable terminal using the voice clock by connecting a voice clock having a clock circuit, a microphone, a speaker, and a short-range wireless interface to the portable terminal via the short-range wireless interface. A configuration that enables free calls is described. Further, Patent Document 4 includes an external adapter that enables a mobile terminal to be connected to an audio device, enables a hands-free call of the mobile terminal using the audio device, and stores music data stored in the mobile terminal. Is described so that it can be played back by an audio device.

JP 05-136865 A Japanese Patent Application Laid-Open No. 06-046000 JP 2002-368837 A JP 2009-124273 A

  For example, many of the above-described tablet personal computers (hereinafter referred to as tablet terminals) do not have a telephone function. On the other hand, when the mobile terminal is connected to a tablet terminal and used as a hands-free phone, for example, the mobile terminal and the tablet terminal are preferably integrated.

  However, in that case, in a configuration in which the mobile terminal is stored in the tablet terminal or the mobile terminal is installed on the back of the tablet terminal, there is a case where a call using acoustic components such as a microphone, a receiver, and a speaker of the mobile terminal cannot be performed. is there.

  Further, when music played on a mobile terminal is output from the speaker of the tablet terminal using the music player function of the mobile terminal, the music data is for stereo playback if the tablet terminal has only one speaker. Even if it exists, since it is reproduced in monaural on the tablet terminal, the functions that can be provided to the user are limited. The above-mentioned patent documents 1 to 4 do not indicate anything about a technique for connecting a mobile terminal to a tablet terminal and using it for a hands-free telephone or music playback.

  The present invention has been made to solve the problems of the background art as described above, and can be used as a hands-free telephone or can be played back in stereo even with a configuration in which a portable terminal and a tablet terminal are integrated. It is an object to provide a system and method.

In order to achieve the above object, an audio reproduction system of the present invention includes a portable terminal having an interface for enabling transmission and reception of information with a receiver unit that outputs audio and an external device;
A tablet terminal including the interface for enabling transmission and reception of information with the mobile terminal, a speaker for outputting sound, and a display unit having a screen size larger than the mobile terminal;
Have
The portable terminal is
A volume amplifying unit and a volume setting unit that enable the receiver unit to output a sound corresponding to a volume output from a speaker included in the tablet terminal;
It is the structure which outputs the audio | voice corresponding to the volume of the said speaker from the said receiver part at the time of the connection with the said tablet terminal via the said interface.

On the other hand, the audio reproduction method of the present invention includes a portable terminal equipped with an interface for enabling transmission and reception of information with a receiver unit that outputs audio and an external device,
A tablet terminal including the interface for enabling transmission and reception of information with the mobile terminal, a speaker for outputting sound, and a display unit having a screen size larger than the mobile terminal;
A sound reproduction method for outputting sound from the receiver unit and the speaker when connected via the interface,
The mobile terminal is
A volume amplifying unit and a volume setting unit that enable output from the receiver unit of sound corresponding to a volume output from a speaker included in the tablet terminal in advance,
This is a method of outputting sound corresponding to the volume of the speaker from the receiver unit.

  According to the present invention, use as a hands-free telephone and stereo reproduction are possible even with a configuration in which a portable terminal and a tablet terminal are integrated.

It is a schematic diagram which shows one structural example of the audio | voice reproduction | regeneration system of this invention. It is a schematic diagram which shows a mode that the portable terminal and tablet terminal which were shown to Fig.1 (a) were integrated. It is a block diagram which shows one structural example of the portable terminal shown to Fig.1 (a), (b). It is a block diagram which shows one structural example of the tablet terminal shown to Fig.1 (a), (b). It is a flowchart which shows an example of the process sequence at the time of the music reproduction by the portable terminal shown to Fig.1 (a), (b). It is a flowchart which shows an example of the process sequence at the time of the music reproduction by the tablet terminal shown to Fig.1 (a), (b). It is a flowchart which shows an example of the process sequence in the case of using the audio | voice reproduction | regeneration system shown in FIG.1 (b) as a hands-free telephone.

  Next, the present invention will be described with reference to the drawings.

  FIG. 1A is a schematic diagram showing a configuration example of an audio reproduction system of the present invention.

  As shown in FIG. 1A, the audio reproduction system of this embodiment includes a mobile terminal 100, a display unit having a screen size larger than that of the mobile terminal 100, and input units (not shown) such as a touch panel and input keys. The tablet terminal 200 is provided.

  The tablet terminal 200 includes a storage unit that stores the mobile terminal 100 in an insertable / removable manner, and an interface that enables connection to the mobile terminal 100 by inserting the mobile terminal 100 into the storage unit in the direction of the arrow in the figure. This is a configuration provided. When the mobile terminal 100 is stored in the tablet terminal 200, various data can be transmitted and received between the mobile terminal 100 and the tablet terminal 200 via the interface.

  As the mobile terminal 100, for example, there is a mobile phone called a smart phone having a well-known phone function and a PDA (Personal Data Assistance or Personal Digital Assistants) function.

  FIG. 1B is a schematic diagram illustrating a state in which the mobile terminal and the tablet terminal illustrated in FIG.

  As shown in FIG. 1B, in the audio reproduction system of the present embodiment, the mobile terminal 100 and the tablet terminal 200 are integrated by inserting the mobile terminal 100 into the storage unit of the tablet terminal 200. The storage portion of the tablet terminal 200 is provided with a cutout so that the receiver 302 is exposed at the fixed position of the mobile terminal 100. The receiver 302 is an acoustic component used when, for example, the mobile terminal 100 is used as a telephone. When the mobile terminal 100 performs a voice call alone, the other party's voice is output from the receiver 302. In the present embodiment, when the mobile terminal 100 is stored in the tablet terminal 200, the receiver 302 of the mobile terminal 100 is used as a speaker.

  The tablet terminal 200 includes a display unit 304 that displays an image, a speaker 301, and a menu key 303. On the display surface of the display unit 304, a touch panel for inputting information such as characters, numbers, symbols, and the like to the tablet terminal 200 is installed based on the displayed image. The user inputs information such as characters, numbers, symbols, and the like using the menu key 303 and the touch panel installed on the display unit 304 shown in FIG. 1B, and performs various operations on the tablet terminal 200 and the mobile terminal 100. It becomes possible.

  In the audio reproduction system according to the present embodiment, for example, in a state where the portable terminal 100 and the tablet terminal 200 are integrated as shown in FIG. In the case of reproduction, stereo reproduction is enabled by using the speaker 301 of the tablet terminal 200 for left channel music reproduction and the receiver 302 of the portable terminal 100 for right channel audio reproduction. Conversely, the speaker 301 of the tablet terminal 200 may be used for right channel audio reproduction, and the receiver 302 of the mobile terminal 100 may be used for left channel audio reproduction. The mobile terminal 100 includes two audio amplifiers (not shown) for the receiver 302 so that audio output in a voice call by the mobile terminal 100 alone and audio corresponding to the volume of the speaker 301 can be output. Shall. One audio amplifier for the receiver 302 may be used as long as the gain, frequency characteristics, and the like can be switched.

  Among the audio signals for 2-channel stereo transmitted from the mobile terminal 100 to the tablet terminal 200, the audio signal of the channel not output from the speaker 301 of the tablet terminal 200 may be deleted by the mobile terminal 100 or deleted by the tablet terminal 200. May be. When the mobile terminal 100 includes a receiver 302 and a speaker (not shown) and stereo playback is possible using the receiver 302 and the speaker at the time of music playback by the mobile terminal 100 alone, the speaker of the mobile terminal 100 is connected to the tablet terminal 200. The audio output may be stopped when stored, and the audio of the same channel as the receiver 302 may be output.

  Further, in the voice reproduction system of the present embodiment, during a hands-free voice call (monaural reproduction), the received voice is output using the receiver 302 of the mobile terminal 100 as a speaker. Alternatively, the received voice is output from at least one of the receiver 302 of the mobile terminal 100 and the speaker 301 of the tablet terminal 200. In this case, a well-known interface system such as HDMI (High-Definition Multimedia Interface) for transmitting / receiving video and audio and USB (Universal Serial Bus) for transmitting / receiving data to / from an external device is used for voice input of the speaker. An external microphone connected via the wireless LAN or an external microphone connected via a known short-range wireless interface such as Bluetooth (registered trademark) may be used. Moreover, you may use the microphone 121 with which the portable terminal 100 is provided for the voice input of a talker.

  FIG. 2A is a block diagram showing a configuration example of the mobile terminal shown in FIGS. 1A and 1B.

  As shown in FIG. 2A, the portable terminal 100 of this embodiment includes a CPU 110, a ROM 111, a work memory 112, a nonvolatile memory 113, a radio transceiver 114, an LED unit 115, an external interface 116, and a key input unit 117. A key backlight 118, a display control unit 119, a microphone 121, a speaker 122, a receiver 123, a short-range wireless transmission / reception unit 124, and a power supply control unit 125, which are connected to each other via a bus 130. The display control unit 119 is connected to the display unit 120, the power supply control unit 125 is connected to a secondary battery (not shown) that is a main power source that supplies required power to the mobile terminal 100, and the external interface 116 is connected to the external interface 116. The external microphone and the tablet terminal 200 shown in FIG. 1 are connected.

  A ROM (Read Only Memory) 111 is a non-volatile memory in which a control program for executing various processes by the CPU 110 is stored. The CPU 110 executes a process according to a control program stored in the ROM 111, thereby realizing a function as, for example, a well-known smartphone, and a function as a portable terminal 100 described later included in the sound reproduction system of the present invention. Realize. The ROM 111 also stores fixed music data and the like for sounding various melody used when receiving a voice call.

  The work memory 112 temporarily holds data necessary for processing according to the control program by the CPU 110. For example, a RAM (Random Access Memory) is used as the working memory 112.

  The nonvolatile memory 113 is a nonvolatile memory in which phonebook data, various setting values, user data, and the like are stored and the stored contents can be rewritten.

  The wireless transceiver 114 is a well-known wireless circuit for transmitting and receiving various data such as voice and images by wireless communication.

  The LED unit 115 includes, for example, a plurality of LEDs (Light Emitting Diodes) that emit light in different colors, and is an electronic device that is used to notify the user of an incoming call or an email by changing a blinking pattern of each LED. It is a part.

  The external interface 116 is an interface that includes a connector that supports USB, HDMI, and the like, and is connected to various external devices so as to be able to transmit and receive data. The external interface 116 also includes an interface for connecting to the tablet terminal 200 shown in FIG. The external interface 116 does not need to be configured by one type of interface, and may be configured to include a plurality of types or a plurality of types of interfaces. These plural or plural kinds of interfaces may be used simultaneously or may be switched as appropriate.

  The key input unit 116 is input by a user using a hardware input key (menu key, home key, clear key, power key, volume key, etc.) necessary for power ON / OFF and various settings, or a touch panel. This is an input circuit for receiving information such as letters, numbers, symbols, and instructions.

  The key backlight 117 is a light emitting unit that realizes illumination and illumination of the input key. The key backlight 117 can emit a plurality of colors.

  The display unit 120 is a liquid crystal display, an organic EL panel, or the like that displays an image according to image information or a video signal supplied from the CPU 110. On the display surface of the display unit 120, a touch panel for inputting information such as characters, numbers, symbols, and the like to the mobile terminal 100 based on the displayed image may be installed.

  The display control unit 119 is a control circuit that performs control for displaying an image or video on the display unit 120.

  The microphone 121, the speaker 122, and the receiver 123 are acoustic components for voice calls that are used when the mobile terminal 100 is used as a telephone. The voice of the sender is input by the microphone 121, and the voice of the other party is output from the speaker 122 or the receiver 123. The receiver 302 illustrated in FIG. 1B corresponds to the receiver 123 illustrated in FIG.

  The short-range wireless transmission / reception unit 124 is an interface circuit for transmitting and receiving data by wireless communication with a wireless device compatible with a known short-range wireless interface such as Bluetooth (registered trademark).

  The power control unit 125 controls power supply from the secondary battery 101 to the mobile terminal 100.

  FIG. 2B is a block diagram illustrating a configuration example of the tablet terminal illustrated in FIGS.

  As shown in FIG. 2B, the tablet terminal 200 of this embodiment includes a CPU 210, a ROM 211, a work memory 212, a nonvolatile memory 213, an external interface 214, a key input unit 215, a display control unit 216, a speaker 218, and a power source. A control unit 219 is provided, and they are connected to each other via a bus 230. A display unit 217 is connected to the display control unit 216, a secondary battery (not shown) that is a main power source that supplies required power to the tablet terminal 200 is connected to the power supply control unit 219, and the external interface 214 is connected to the external interface 214. For example, the portable terminal 100 shown in FIG.

  The ROM 211 is a non-volatile memory in which a control program for executing various processes by the CPU 210 is stored. The CPU 210 executes a process according to a control program stored in the ROM 211, thereby realizing a function as a well-known tablet terminal and a function as a tablet terminal 200 (to be described later) included in the audio reproduction system of the present invention. Realize.

  The work memory 212 temporarily holds data necessary for processing according to the control program by the CPU 210. For example, a RAM is used as the work memory 212.

  The non-volatile memory 213 is a non-volatile memory in which phonebook data, various setting values, user data, and the like are stored and the stored contents can be rewritten.

  The external interface 214 is an interface that includes a connector that supports USB, HDMI, and the like and is connected to various external devices so as to be able to transmit and receive data. As described above, the external interface 214 includes an interface circuit for connecting to the portable terminal 100 shown in FIG.

  The display unit 217 is a liquid crystal display, an organic EL panel, or the like that displays an image according to image information or a video signal supplied from the mobile terminal 100 or the CPU 210. On the display surface of the display unit 217, a touch panel for inputting information such as characters, numbers, symbols, and the like to the tablet terminal 200 may be installed based on the displayed image. The display unit 304 illustrated in FIG. 1B corresponds to the display unit 217 illustrated in FIG.

  The display control unit 216 is a control circuit that performs control for displaying an image or video on the display unit 217.

  The key input unit 215 is input by a user using a hardware input key (menu key, home key, clear key, power key, volume key, etc.) necessary for power ON / OFF and various settings, or a touch panel. This is an input circuit for receiving information such as letters, numbers, symbols, and instructions. The menu key 303 shown in FIG. 1B is realized by the key input unit 215 shown in FIG.

  The speaker 218 outputs sound during multimedia playback such as video and music. The speaker 301 illustrated in FIG. 1B corresponds to the speaker 218 illustrated in FIG.

  The power control unit 219 controls power supply from a secondary battery (not shown) to the tablet terminal 200.

  FIG. 2B shows a configuration example of the tablet terminal 200 that does not have a telephone function. The tablet terminal 200 includes a radio transceiver unit, similar to the portable terminal 100 shown in FIG. 114, the microphone 121, the receiver 123, etc. may be provided with a telephone function.

  Next, the operation of the audio reproduction system of this embodiment will be described with reference to the drawings.

  FIG. 3A is a flowchart illustrating an example of a processing procedure at the time of music playback by the mobile terminal illustrated in FIGS. 1A and 1B. FIG. 3B is a flowchart showing an example of a processing procedure at the time of music reproduction by the tablet terminal shown in FIGS. 1A and 1B.

  3A and 3B, the CPU 110 provided in the portable terminal 100 executes the process according to the control program stored in the ROM 111, and the CPU 210 provided in the tablet terminal 200 is stored in the ROM 211. This is realized by executing processing according to the control program.

  First, the processing procedure of the portable terminal 100 will be described with reference to FIG.

  As shown in FIG. 3A, the mobile terminal 100 determines whether or not it is connected to the tablet terminal 200 in the standby state (step S11). When not connected to the tablet terminal 200, the portable terminal 100 repeats the process of step S11.

  When connected to the tablet terminal 200, the portable terminal 100 prepares to operate the receiver 123 as a speaker (operation change of the receiver) (step S12). For example, the volume setting table for setting the volume output from the receiver 123 is switched from the receiver to the speaker. In addition, the portable terminal 100 switches the audio amplifier circuit for the receiver to the audio amplifier circuit for the speaker.

  Usually, the receiver 123 of the mobile terminal 100 and the speaker 218 of the tablet terminal 200 differ in the volume, opening area, performance, and the like of the mounting space. For this reason, when the receiver 123 is used as a speaker, an audio amplifier circuit (not shown) included in the mobile terminal 100 is adjusted in advance so that the volume and sound quality are the same as those of the speaker 218 of the tablet terminal 200, and the receiver of the mobile terminal 100 is adjusted. The volume setting table may be created so that the volume of the speaker 123 of the tablet terminal 200 is the same as that of the tablet terminal 200. It is assumed that the volume setting table for the receiver and the speaker is stored in the nonvolatile memory 113, for example. As the audio amplifier circuit, any known circuit may be used as long as audio can be output from the receiver 123 with required power and acoustic characteristics.

  Next, the mobile terminal 100 matches the volume setting value set by the user operating the mobile terminal 100 with the volume setting value set by the user operating the tablet terminal 200 (step S13). The volume setting value of the tablet terminal 200 may be transmitted from the tablet terminal 200 to the mobile terminal 100 when the tablet terminal 200 confirms the connection with the mobile terminal 100, for example. Alternatively, the volume setting value of the tablet terminal 200 may be transmitted from the tablet terminal 200 to the mobile terminal 100 in response to a request from the mobile terminal 100. 3 shows an example in which the volume setting value of the mobile terminal 100 is matched with the volume setting value of the tablet terminal 200, the volume setting value of the tablet terminal 200 may be matched with the volume setting value of the mobile terminal 100. .

  Next, the mobile terminal 100 determines whether or not activation of the music player of the mobile terminal 100 (or audio reproduction by an event such as a notification operation) is instructed by a user operation on the tablet terminal 200 (step S14). Is instructed, reproduction of music data by the music player is started. At this time, the portable terminal 100 outputs sound at the volume specified by the volume setting value from the receiver 123 based on the volume setting table for speakers (step S15).

  Next, the mobile terminal 100 determines whether or not the volume has been changed by a user operation on the tablet terminal 200 (step S16). If the volume has been changed, the portable terminal 100 outputs sound from the receiver 123 with the changed volume. (Step S17). When the volume has not been changed, the mobile terminal 100 continues to reproduce the audio by the receiver 123 at the current volume.

  Subsequently, it is determined whether or not the end of the music player of the mobile terminal 100 is instructed by the user's operation on the tablet terminal 200 (step S18), and when the end is instructed, the mobile terminal 100 stops the operation of the music player. (Step S19), the process returns to the standby state. When the end is not instructed, the audio reproduction by the receiver 123 is continued.

  Next, the processing procedure of the tablet terminal 200 will be described with reference to FIG.

  As shown in FIG. 3B, the tablet terminal 200 determines whether it is connected to the portable terminal 100 in the standby state (step S21). When not connected with the portable terminal 100, the tablet terminal 200 repeats the process of step S21.

  When connected to the portable terminal 100, the tablet terminal 200 notifies the portable terminal 100 of the volume setting value of the speaker 218 set by the user's operation (step S22).

  When the tablet device 200 is instructed by the user to start the music player of the mobile terminal 100 and starts playing music data by the music player, the volume setting value is set according to the audio signal transmitted from the mobile terminal 100. The sound is output from the speaker 218 at the volume specified by (step S23).

  Next, the tablet terminal 200 determines whether or not the volume has been changed by a user operation (step S24). If the volume has been changed, the tablet terminal 200 outputs sound from the speaker 218 at the changed volume (step S25). . When the volume has not been changed, the tablet terminal 200 continues to reproduce the sound from the speaker 218 at the current volume.

  Subsequently, the tablet terminal 200 determines whether or not the operation of the music player of the mobile terminal 100 is stopped by the user's operation (step S26), and stops the audio output from the speaker 218 when the operation of the music player is stopped. (Step S27), the process returns to the standby state. When the operation of the music player is not stopped, the sound reproduction by the speaker 218 is continued.

  Next, processing when the voice reproduction system shown in FIG. 1B is used as a hands-free telephone will be described with reference to FIG.

  FIG. 4 is a flowchart showing an example of a processing procedure when the audio reproduction system shown in FIG. 1B is used as a hands-free telephone.

  As shown in FIG. 4, the mobile terminal 100 first determines whether or not it is connected to the tablet terminal 200 in the standby state (step S31). When not connected to the tablet terminal 200, the mobile terminal 100 repeats the process of step S31.

  When connected to the tablet terminal 200, the mobile terminal 100 prepares to operate the receiver 123 as a speaker (changes the operation of the receiver) (step S32). For example, the volume setting table for setting the volume output from the receiver 123 is switched from the receiver to the speaker. In addition, the portable terminal 100 switches the audio amplifier circuit for the receiver to the audio amplifier circuit for the speaker.

  Next, the mobile terminal 100 matches the volume setting value set by the user operating the mobile terminal 100 with the volume setting value set by the user operating the tablet terminal 200 (step S33). The volume setting value of the tablet terminal 200 may be transmitted from the tablet terminal 200 to the mobile terminal 100 when the tablet terminal 200 confirms the connection with the mobile terminal 100, for example. Alternatively, the volume setting value of the tablet terminal 200 may be transmitted from the tablet terminal 200 to the mobile terminal 100 in response to a request from the mobile terminal 100. 4 shows an example in which the volume setting value of the mobile terminal 100 is matched with the volume setting value of the tablet terminal 200, the volume setting value of the tablet terminal 200 may be matched with the volume setting value of the mobile terminal 100. .

  When the tablet terminal 200 does not include the speaker 218, the tablet terminal 200 does not have a volume setting function. In that case, the user may read the volume setting table of the mobile terminal 100 by operating the tablet terminal 200 and change the volume.

  The mobile terminal 10 determines whether or not there is an incoming voice call (step S34), and when a voice incoming call occurs, a known communication device that enables a hands-free call using a short-range wireless interface such as Bluetooth (registered trademark), for example. Are connected to the tablet terminal 200 (whether wireless communication is possible) or not (step S35).

  When the communication device is connected, when the user responds to an incoming call using the communication device, the mobile terminal 100 establishes a call with the other party (step S36) and the user makes a call using the communication device. Transition to a possible state. When the call by the user ends, the mobile terminal 100 disconnects the call (step S37) and returns to the standby state.

  When the communication device that enables the hands-free call is not connected, the mobile terminal 100 shifts to a hands-free call process using the tablet terminal 200. At this time, the ring tone is output from at least one of the receiver 123 of the mobile terminal 100 and the speaker 218 of the tablet terminal 200.

  When the user responds to the incoming call by the user's operation on the tablet terminal 200, the mobile terminal 100 establishes a call with the other party (step S38) and shifts to a state where the user can make a call. At this time, the received voice of the other party is output from at least one of the receiver 123 of the mobile terminal 100 or the speaker 218 of the tablet terminal 200. On the other hand, the voice of the sender (user) is input to the mobile terminal 100 using an external microphone or the microphone 121 provided in the mobile terminal 100. When the call by the user ends, the mobile terminal 100 disconnects the call (step S39) and returns to the standby state.

  According to the audio reproduction system of the present embodiment, when connecting to the tablet terminal 200, the audio is output from the acoustic component (for example, the receiver 123) of the mobile terminal 100 or the speaker 218 of the tablet terminal 200. Since a free call becomes possible, the troublesomeness of removing the mobile terminal 100 from the tablet terminal 200 can be avoided. Further, if the received voice is output using both the receiver 123 of the mobile terminal 100 and the speaker 218 of the tablet terminal 200, the received voice that is monaural voice can be reproduced more clearly and clearly.

  Further, when connecting to the tablet terminal 200, for example, when audio data is output from the acoustic component (for example, the receiver 123) of the mobile terminal 100 and the speaker 218 of the tablet terminal 200, for example, to reproduce music data for 2-channel stereo, Even if the tablet terminal 200 includes only one speaker 218, by assigning audio signals of different channels to the acoustic component (for example, the receiver 123) of the mobile terminal 100 and the speaker 218 of the tablet terminal 200, two-channel stereo is achieved. Can play music.

  Therefore, even when the mobile terminal 100 and the tablet terminal 200 are integrated, use as a hands-free telephone and stereo reproduction are possible.

  1A and 1B show a configuration example in which the mobile terminal 100 is stored in the tablet terminal 200, the receiver 123 and the speaker 122 of the mobile terminal 100 can be used, and the positional relationship after connection is established. If the mobile terminal 100 is fixed, the present invention is applicable to a configuration other than the configuration in which the mobile terminal 100 is stored in the tablet terminal 200. For example, the present invention can be applied to a configuration in which the portable terminal 100 and the tablet terminal 200 are fixedly connected using a dedicated mounting table or the like.

  Further, in the process shown in FIG. 3, an example in which music data for two-channel stereo stored in the mobile terminal 100 is reproduced is shown, but the music data to be reproduced may be stored in the tablet terminal 200. In that case, when the music player of the tablet terminal 200 is activated by the user operating the tablet terminal 200 and the reproduction of the music data is started, an audio signal to be output from the tablet terminal 200 to the portable terminal 100 by the receiver 123 is transmitted. do it.

  In the present embodiment, the configuration example including an interface for connecting the mobile terminal 100 and the tablet terminal 200 by inserting the mobile terminal 100 into the storage unit of the tablet terminal 200 has been described. Need not be configured to be connected by inserting the mobile terminal 100 into the tablet terminal 200. For example, the mobile terminal 100 and the tablet terminal 200 may be connected in advance with a cable or the like, and the mobile terminal 100 may be stored in the tablet terminal 200, or the mobile terminal 100 and the tablet terminal 200 may be connected with a cable or the like after storage. Good. The present invention may be any configuration as long as the mobile terminal 100 and the tablet terminal 200 are connected by housing the mobile terminal 100 in the tablet terminal 200, and any interface may be used for connecting them.

  In the present embodiment, the configuration example in which the audio is played by the receiver 123 of the mobile terminal 100 when stored in the tablet terminal 200 is shown. However, in the mobile terminal 100, the audio may be played by the speaker 122. Audio may be reproduced with a component that can also be used as a speaker. The present invention relates to a receiver 123, a speaker 122, a receiver, and a component that can be used as a receiver and a speaker (hereinafter referred to as a receiver unit) of the mobile terminal 100 exposed by a notch portion provided in the storage unit of the tablet terminal 200 when stored in the tablet terminal 200. Any component may be used as long as sound can be output to the receiver unit.

  Moreover, in this embodiment, when using the portable terminal 100 as a hands-free telephone in the state accommodated in the tablet terminal 200, the example which inputs the voice of a speaker using the microphone 121 with which the portable terminal 100 is provided was shown. However, in this case, the microphone 121 of the mobile terminal 100 may be provided at a position exposed by a notch portion provided in the storage portion of the tablet terminal 200.

  In the present embodiment, the tablet terminal 200 includes the power supply control unit 319, and a configuration example in which required power is supplied from the secondary battery connected to the power supply control unit 319 is shown. For example, power may be supplied from the mobile terminal 100 via the external interfaces 116 and 214.

100 Mobile terminal 110, 210 CPU
111, 211 ROM
112, 212 Work memory 113, 213 Non-volatile memory 114 Radio transceiver 115 LED unit 116, 214 External interface 117, 215 Key input unit 118 Key backlight 119, 216 Display control unit 120, 217, 304 Display unit 121 Microphone 122 218, 301 Speaker 123, 302 Receiver 124 Short-range wireless transmission / reception unit 125, 219 Power control unit 130, 230 Bus 200 Tablet terminal 303 Menu key

Claims (9)

A mobile terminal equipped with an interface for enabling transmission and reception of information to and from a receiver unit that outputs audio and an external device;
A tablet terminal including the interface for enabling transmission and reception of information with the mobile terminal, a speaker for outputting sound, and a display unit having a screen size larger than the mobile terminal;
Have
The portable terminal is
A volume amplifying unit and a volume setting unit that enable the receiver unit to output a sound corresponding to a volume output from a speaker included in the tablet terminal;
An audio reproduction system that outputs audio corresponding to the volume of the speaker from the receiver unit when connected to the tablet terminal via the interface.   The voice reproduction system according to claim 1, wherein the voice output from the receiver unit or the speaker is a reception voice transmitted from a call partner when a voice call is received to the mobile terminal.   The voice reproduction system according to claim 2, wherein the received voice is output from each of the receiver unit and the speaker.   The audio output from the receiver unit and the speaker is music data for two-channel stereo, the audio of one channel is output from the receiver unit, and the audio of the other channel is output from the speaker. Voice playback system. The tablet terminal
5. The audio reproduction system according to claim 1, further comprising: a storage unit that stores the portable terminal so that the mobile terminal can be inserted and removed, and the interface is provided in the storage unit. A mobile terminal equipped with an interface for enabling transmission and reception of information to and from a receiver unit that outputs audio and an external device;
A tablet terminal including the interface for enabling transmission and reception of information with the mobile terminal, a speaker for outputting sound, and a display unit having a screen size larger than the mobile terminal;
A sound reproduction method for outputting sound from the receiver unit and the speaker when connected via the interface,
The mobile terminal is
A volume amplifying unit and a volume setting unit that enable output from the receiver unit of sound corresponding to a volume output from a speaker included in the tablet terminal in advance,
An audio reproduction method for outputting audio corresponding to the volume of the speaker from the receiver unit.   The voice reproduction method according to claim 6, wherein the voice output from the receiver unit or the speaker is a received voice transmitted from a call partner when a voice call is received at the mobile terminal.   The voice reproduction method according to claim 7, wherein the received voice is output from each of the receiver and the speaker.   The sound output from the receiver unit and the speaker is music data for two-channel stereo, the sound of one channel is output from the receiver, and the sound of the other channel is output from the speaker. Audio playback method.

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