JP2005151450A - Mobile terminal, video phone system, control program, and recording medium with program recorded thereon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a video image of an opposite party easy to watch during a video phone call in a mobile telephone set including a video phone function. <P>SOLUTION: In a mobile telephone set 2 including the video phone function, a video signal of an opposite party transmitted by radio is received by an antenna 16, converted into stream data by a radio processing part 15, decoded by an AV CODEC part 14, converted into an NTSC video signal by a video I/F part 20, and output from a video signal output part 21 to a TV receiver 3. Thus, the video image of the opposite party can be displayed on the TV receiver 3 having a display screen greater than that of the mobile telephone set 2, so that the video image of the opposite party is made easy to watch. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile terminal represented by a mobile phone, and in particular, a mobile terminal having a videophone function, a videophone system using the mobile terminal, a control program for the mobile terminal, and the program recorded therein The present invention relates to a recording medium.

  Recently, third-generation mobile phone services are becoming popular. Among these third-generation mobile phone services, for example, FOMA (registered trademark), a third-generation mobile phone service implemented by the NTT DoCoMo Group, provides video phone (videophone) services. Some are doing it.

The video phone refers to a multimedia phone that simultaneously transmits voice and images, and is described in, for example, the following patent documents. Video telephones have the advantage that they can easily convey information that is difficult to convey to the other party by voice alone, or can make a call while watching the other party's facial expression.
JP-A-1-81587 (published March 27, 1989) Japanese Patent Laid-Open No. 2-67888 (published March 7, 1990) JP-A-8-195944 (released July 30, 1996) Japanese Patent Laid-Open No. 11-146366 (published on May 28, 1999) JP 2000-134592 A (published on May 12, 2000)

  However, when a video phone is made using a mobile phone when there are a plurality of people on the own device side, the following problems occur.

  That is, in a video phone, the video from the other party (hereinafter referred to as “the other party”) is displayed on the display of the own machine, but the size of the display of the mobile phone is intended for personal viewing. Because it is a small size, it is narrow to see by multiple people.

  In addition, there are models of recent mobile phones that include a camera and a display on the inside and the outside, respectively. In this case, in general, the inner camera mainly has a narrow angle of view because it mainly shoots a user of a mobile phone, and the outer camera mainly has a wide angle of view because it mainly shoots a landscape. . The inner display has a relatively large screen size for reading e-mails and executing applications, but the outer display only needs to be notified of the time display and incoming e-mails. The size of the is relatively narrow.

  For this reason, when making a video call using the outside camera and display, it is easy to shoot multiple people because of the wide angle of view of the camera, but because the size of the display is small, the other party's video is very visible. hard. On the other hand, when making a videophone call using the inner camera and the display, the size of the display is wide, so that the other party's video is easy to see.

  When there are a plurality of persons, one person may be a photographer who operates the mobile phone and photographs the remaining persons as photographed persons. In this case, since the photographer and the person to be photographed exist on different sides with respect to the mobile phone, the video imaged by the own device (hereinafter referred to as “self-device image”) and the partner image are Only one of the photographer and the person to be photographed can confirm, and the other cannot confirm, which is inconvenient.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a portable terminal that allows easy viewing of the other party's image and the own device image when making a videophone call.

  In order to solve the above-described problem, a mobile terminal according to the present invention is a mobile terminal having a video phone function, which transmits video data and audio data of its own terminal wirelessly, and transmits video data and audio data of a counterpart terminal. A portable terminal for receiving wirelessly includes an external output means for outputting video data of the terminal and / or the partner terminal to the outside.

  Furthermore, the portable terminal according to the present invention is characterized in that, in the above configuration, the external output means converts the video data into a format suitable for an output destination display device that outputs the video data.

  Furthermore, the mobile terminal according to the present invention is characterized in that, in the above configuration, the external output means further outputs the audio data of the own terminal and / or the counterpart terminal to the outside.

  Furthermore, the portable terminal according to the present invention is characterized in that, in the above configuration, the external output means converts the audio data into a format suitable for an output audio output device that outputs the audio data.

  Furthermore, the portable terminal according to the present invention, in the above-described configuration, is a video input unit that captures and generates video data of the terminal, a video display unit that displays a video based on the video data, and the video input Video data output by the external output means from the video data of the own terminal created by the means, video data of the counterpart terminal, and video data of both the local terminal and the counterpart terminal; The video display means further includes video selection means for selecting video data to be displayed.

  Furthermore, in the mobile terminal according to the present invention, in the configuration described above, the video input unit includes a first shooting unit that performs shooting, and the video display unit has the same shooting direction as the first shooting unit. First display output means for displaying and outputting the video in the direction and second display output means for displaying and outputting the video in the direction opposite to the shooting direction, and the video selection means further includes the video input Video data to be displayed by the first display output means out of the video data of the own terminal, the video data of the counterpart terminal, and the video data of both the own terminal and the counterpart terminal created by the means And video data to be displayed by the second display output means, respectively.

  Furthermore, in the mobile terminal according to the present invention, in the configuration described above, the video input unit further includes a second imaging unit that performs imaging in a direction opposite to the imaging direction of the first imaging unit, and the video selection unit When the first photographing means performs photographing, the means selects the video data of the terminal generated by the video input means by the photographing as video data to be displayed by the second display output means. On the other hand, when the second photographing means performs photographing, the video data of the terminal itself created by the video input means by the photographing is selected as video data to be displayed by the first display output means. It is characterized by.

  Furthermore, the portable terminal according to the present invention has an infrared transmission means for transmitting a signal by infrared rays to an output destination display device from which the external output means outputs video data, and an output destination display. And infrared transmission control means for controlling the infrared transmission means to transmit a control signal for controlling the apparatus.

  Furthermore, in the mobile terminal according to the present invention, in the above configuration, when the infrared transmission control means starts a videophone, the infrared transmission means sends a control signal for turning on the power of the output destination display device. The infrared transmission unit is controlled such that the infrared transmission unit transmits a control signal for turning off the power of the output destination display device when transmitting and terminating the videophone.

  Furthermore, in the mobile terminal according to the present invention, in the above configuration, the infrared transmission control unit switches the video input of the output destination display device to the video input from the external output unit when starting a videophone. Infrared transmission so that the infrared transmission means transmits a control signal for switching the video input of the output destination display device to the original video input when the infrared transmission means transmits the control signal and terminates the video phone call. It is characterized by controlling the means.

  Furthermore, the portable terminal according to the present invention is characterized in that, in the above configuration, the infrared transmission control means sets the time when a videophone request is received or transmitted as a time when a videophone is started.

  Furthermore, the mobile terminal according to the present invention further includes operation means for the user to perform various operations in the above-described configuration, and the infrared transmission control means is configured such that the user transmits a videophone via the operation means. A feature of the present invention is that a videophone is started when an operation for instructing the start of videophone is performed.

  Furthermore, the mobile terminal according to the present invention further includes operation means for the user to perform various operations in the above-described configuration, and the infrared transmission control means is configured such that the user transmits a videophone via the operation means. When the operation for instructing the termination of the videophone is performed, the videophone call is terminated.

  Further, in the mobile terminal according to the present invention, in the above configuration, the control by the infrared transmission control means is automatically performed when starting or ending the videophone, or notifies the user to that effect. And setting means for setting whether to perform based on an instruction from the user.

  Furthermore, the portable terminal according to the present invention is configured so that, in the above-described configuration, the external output unit detects the connection with the display device as the output destination, and the external terminal only when the connection detection unit detects the connection. And an external output control means for controlling the output means to output to the output destination display device.

  The video phone system according to the present invention is a portable terminal having a video phone function, and wirelessly transmits video data and audio data of its own terminal, and wirelessly receives video data and audio data of the counterpart terminal. In a video phone system including a mobile terminal and a cradle that accommodates the mobile terminal, the mobile terminal includes transmission means for transmitting data to the cradle, and the cradle receives the data from the mobile terminal. It is characterized by comprising receiving means and external output means for outputting the video data of the terminal and / or the partner terminal received by the receiving means to the outside.

  The portable terminal according to the present invention is a portable terminal having a videophone function, which wirelessly transmits video data and audio data of the own terminal and wirelessly receives video data and audio data of the counterpart terminal. The terminal includes video input means for shooting to create video data, and voice input means for converting sound into audio data. The video input means includes first and second shooting means for shooting. The first and second photographing means are provided so that the photographing directions are opposite to each other, and the voice input means converts the first and second microphones that convert sound into an electrical signal. The first microphone means is provided so as to mainly input sound from the photographing direction of the first photographing means, and the second microphone means is provided from the photographing direction of the second photographing means. Provided mainly to input audio, and obtains video data and audio data from any one of the first photographing means and the first microphone means, and the second photographing means and the second microphone means. As described above, the video camera is further provided with input control means for controlling the video input means and the audio input means.

  The portable terminal according to the present invention is a portable terminal having a videophone function, which wirelessly transmits video data and audio data of the own terminal and wirelessly receives video data and audio data of the counterpart terminal. The terminal includes video input means for creating video data by shooting and video display means for displaying video based on the video data, and the video input means includes shooting means for shooting. The video display means includes first display output means for displaying and outputting video in the same direction as the photographing direction of the photographing means, and second display output means for displaying and outputting video in the opposite direction to the photographing direction. A video based on the video data of the terminal created by the video input means by shooting by the shooting means is displayed on the second display output means, and the counterpart terminal It is characterized by further comprising display control means for controlling said image display means to display outputs video based on the video data to the first display output means.

  Furthermore, the mobile terminal according to the present invention is characterized in that, in the above configuration, the first display output means has a larger display screen size than the second display output means.

  Furthermore, the mobile terminal according to the present invention is characterized in that, in the above configuration, the mobile terminal is a mobile phone.

  A control program according to the present invention is a control program for operating the portable terminal, and is a control program for causing a computer to function as the infrared transmission control means. A computer-readable recording medium according to the present invention is characterized in that the control program is recorded.

  As described above, the portable terminal according to the present invention is configured to include an external output unit that outputs the video data of the terminal and / or the partner terminal to the outside.

  Here, as the portable terminal, if it is an information processing terminal having a videophone function and capable of wireless data communication, a portable telephone, PHS (Personal Handy-phone System), PDA (Personal Digital Assistant) Any terminal can be used.

  According to the above configuration, since the video data of the own terminal and / or the partner terminal is output to the outside, it is possible to output the partner video and / or the host video to an external display device having a display screen wider than that of the mobile terminal. It is possible to produce an effect that it is easy to see the other party's video and the own video.

  Furthermore, the portable terminal according to the present invention is configured such that, in the above configuration, the external output means converts the video data into a format suitable for an output destination display device that outputs the video data. As a result, the video signal output from the external output means can be used as it is in the display device of the output destination, so that it is possible to use an existing display device capable of inputting a video signal typified by a TV receiver, for example. .

  The external output means preferably further outputs the voice data of the own terminal and / or the counterpart terminal to the outside. In this case, it is more preferable that the external output means converts the audio data into a format suitable for an output audio output device that outputs the audio data.

  Further, in the mobile terminal according to the present invention, in the configuration described above, the video data of the own terminal, the video data of the counterpart terminal, and the video data of both the self terminal and the counterpart terminal created by the video input means. Video selection means for selecting video data output from the external output means to the outside and video data to be displayed by the video display means, respectively.

  According to the above configuration, the video data output from the external output means can be selected from the video data of the own terminal, the video data of the counterpart terminal, and the video data of both the self terminal and the counterpart terminal. There is an effect that an image can be displayed on an external display device. For example, if the own device image is displayed on an external display device, it is useful because it is possible to appropriately confirm how the own device image is viewed by the user of the partner terminal.

  It is desirable that the video data of the partner terminal is selected as the video data output from the external output means to the outside, and the video data of the own terminal is selected as the video data to be displayed by the video display means. In this case, the other party's video is displayed on the external display device, and the own video is displayed by the own video display means, so that the own video can be displayed on the display screen of the own machine and the own video is displayed. There is an effect that it becomes easy to see.

  Furthermore, in the mobile terminal according to the present invention, in the configuration described above, the video input unit includes a first shooting unit that performs shooting, and the video display unit has the same shooting direction as the first shooting unit. First display output means for displaying and outputting the video in the direction and second display output means for displaying and outputting the video in the direction opposite to the shooting direction, and the video selection means further includes the video input Video data to be displayed by the first display output means out of the video data of the own terminal, the video data of the counterpart terminal, and the video data of both the own terminal and the counterpart terminal created by the means And video data to be displayed by the second display output means.

  According to the above configuration, the video data to be displayed by the first and second display output means includes the video data of the own terminal, the video data of the partner terminal, and the video data of both the host terminal and the partner terminal. Since each can be selected from the inside, the desired image can be displayed on the first and second display output means.

  By the way, when a certain person becomes a photographer and makes a video call with the remaining persons as photographed persons, the photographer is positioned on the opposite side of the photographed person with respect to the portable terminal. In this case, it is desirable to select the video data of the own terminal as the video data to be displayed by the second display output means. As a result, since the own device image is displayed on the opposite side of the photographing means, the photographer can take an image while referring to the own device image.

  In addition, when the video input unit further includes a second shooting unit that performs shooting in a direction opposite to the shooting direction of the first shooting unit, the first shooting unit is used for shooting the video selection unit. In this case, the video data of the terminal created by the video input unit by the shooting is selected as video data for display by the second display output unit, while the second shooting unit performs the shooting. When performing, the video data of the own terminal created by the video input means by the shooting may be selected as video data to be displayed by the first display output means. In this case, regardless of which photographing means is used, the photographer can take an effect while referring to his / her own video, as described above.

  Furthermore, the portable terminal according to the present invention has an infrared transmission means for transmitting a signal by infrared rays to an output destination display device from which the external output means outputs video data, and an output destination display. Infrared transmission control means for controlling the infrared transmission means to transmit a control signal for controlling the apparatus.

  As a result, the portable terminal can remotely control the output destination display device with infrared rays, so that the output destination display device can be operated without directly operating the output destination display device or using another remote controller. It is possible to display the other party's image on the screen and to save the user's trouble.

  When the infrared transmission control means starts a videophone call, the control signal for turning on the power of the output destination display device or the video input of the output destination display device is input to the video input from the external output means. It is desirable to transmit a control signal for switching to. Further, when the video phone is terminated, it is desirable to transmit a control signal for turning off the power of the output destination display device and a control signal for switching the video input of the output destination display device to the original video input.

  The infrared transmission control means may determine that the video phone request is started when the incoming or outgoing video phone request is received. In this case, when a videophone request is received or transmitted, the other party's image or the own device's image can be automatically displayed on the output destination display device, and the user's trouble can be further reduced.

  The infrared transmission control means may determine that the video telephone call is started when the user performs an operation for instructing the start of the video telephone via the operation means. Generally, in the case of a mobile phone, a call is started by pressing a call start button. Therefore, since the control signal is transmitted in conjunction with the videophone start operation by the user, it is not necessary for the user to perform a new operation in order to remotely operate the output destination display device. Furthermore, there is an effect that it can be omitted. In addition, when the user performs a videophone start operation, the output direction of the infrared rays is directed to the output destination display device, so that the output destination display device can be reliably operated remotely to turn on the power or switch the video input. There is an effect that it can be performed reliably.

  Further, the infrared transmission control means may determine that the case where the user performs an operation for instructing the end of the videophone via the operation means is a case where the videophone is ended. Generally, in the case of a mobile phone, a call is ended by pressing a call end button. Therefore, since the control signal is transmitted in conjunction with the videophone end operation by the user, it is not necessary for the user to perform a new operation in order to remotely operate the output destination display device. Furthermore, there is an effect that it can be omitted. In addition, when the user performs the video phone termination operation, the output direction of the infrared rays is directed to the output destination display device, so that the output destination display device can be reliably operated remotely to turn off the power or switch the video input. There is an effect that it can be performed reliably.

  It should be noted that the control by the infrared transmission control means is set to be automatically performed when starting or ending the videophone or based on an instruction from the user by informing the user to that effect. It is desirable to provide a setting means. In this case, the effect that it can respond flexibly according to the usage form of the portable terminal by the user can be expected.

  Furthermore, the portable terminal according to the present invention is configured so that, in the above-described configuration, the external output unit detects the connection with the display device as the output destination, and the external terminal only when the connection detection unit detects the connection. The output means includes an external output control means for outputting to the output destination display device.

  As a result, usually the other party's video or own video is displayed on the display screen of the own device, and when connected to the output destination display device, the other party video or own video is displayed on the display screen of the output destination display device. Therefore, there is no need for the user to perform an operation for outputting the other party's image or the own device's image to the outside, and the user's trouble can be saved.

  In addition, the video phone system according to the present invention is a mobile terminal having a video phone function as described above, and transmits the video data and audio data of the own terminal wirelessly, and the video data and audio data of the counterpart terminal. In a video phone system including a mobile terminal that wirelessly receives a mobile terminal and a cradle that accommodates the mobile terminal, the mobile terminal includes transmission means for transmitting data to the cradle, and the cradle is connected to the mobile terminal. A receiving means for receiving the data, and an external output means for outputting the video data of the terminal and / or the partner terminal received by the receiving means to the outside.

  According to the above configuration, since the portable terminal only includes a transmission unit that transmits data to the cradle, and the external output unit of the cradle can output the video data of the own terminal and / or the counterpart terminal to the outside. There is an effect that it is not necessary to provide the mobile terminal with a new configuration for outputting the other party's image or the own device image to the device.

  In the portable terminal according to the present invention, as described above, the video input means includes first and second photographing means for photographing, and the first and second photographing means have photographing directions. The sound input means is provided with first and second microphone means for converting sound into an electric signal, and the first microphone means is a first photographing means. The second microphone means is provided so as to mainly input sound from the shooting direction of the second shooting means, and the first shooting is provided. Input for controlling the video input means and the audio input means so as to acquire video data and audio data from any one of the means and the first microphone means, the second photographing means and the second microphone means Configuration further comprising control means A.

  By the way, in a video phone using a mobile terminal, the user of the mobile terminal is usually a person to be photographed, makes a phone call, and views the other party's video, so that the inner camera, microphone, and display are used. However, when multiple people are to be photographed, it is desirable to use an outer camera with a wide angle of view as described above. However, when making a video phone call with an outer camera, a conventional portable terminal is usually used. However, since the microphone is not provided outside, there is a problem that the volume of the input voice is reduced. Although a relatively large separate microphone can be attached to a mobile phone, it is troublesome to carry the separate microphone.

  On the other hand, in the present invention, a microphone is also provided on the outside of the mobile terminal, and the input control means controls so as to use the microphone on the photographing side. As a result, there is an effect that sound data having an appropriate volume can be created even when the image is taken by the outer camera.

  In the mobile terminal according to the present invention, as described above, the video input unit includes a shooting unit that performs shooting, and the video display unit displays the video in the same direction as the shooting direction of the shooting unit. A first display output means for outputting, and a second display output means for displaying and outputting a video image in a direction opposite to the photographing direction, and the self terminal created by the video input means by photographing with the photographing means Display control for controlling the video display means to display and output the video based on the video data to the second display output means, and to display and output the video based on the video data of the counterpart terminal to the first display output means. It is the structure further provided with a means.

  Thus, the first display output means for displaying the video in the shooting direction of the shooting means displays the partner video, and the second display output means for displaying the video in the direction opposite to the shooting direction displays the own video. It will be. Therefore, the photographed person can see the other party's video, so that he / she can enjoy a video phone call, and the photographer can view his / her own video, that is, the image of the photographed person. The effect is that it can be taken.

  The first display output means preferably has a larger display screen size than the second display output means. In this case, the other party's video is displayed on the larger display screen, so that the photographed person can easily view the other party's video.

  Note that the mobile terminal is preferably realized by a mobile phone. Since portability is important for a mobile phone, it is difficult to make it heavier or provide a large screen, which is suitable for applying the present invention.

  The infrared transmission control means in the portable terminal can be executed on a computer by a control program. Furthermore, the control program can be executed on any computer by storing the control program in a computer-readable recording medium.

[Embodiment 1]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the following, the case where the present invention is applied to a mobile phone suitable as a portable terminal will be described. Of course, it can be applied to a portable terminal.

  In addition, a case where a TV (television) receiver is adopted as an output destination display device is described. However, the display device of the output destination may be a display device having a display size larger than the display size of the portable terminal and having a video input function and an audio input function, and the power is turned on / off by an infrared signal. As long as remote control such as switching of image input can be performed, a display monitor or the like without a TV tuner may be used. Furthermore, the TV receiver may be an information processing apparatus (PC (Personal Computer), PDA, etc.) provided with a TV tuner.

  FIG. 1 shows a schematic configuration of the video telephone system of the present embodiment. As shown in the figure, the video phone system 1 includes a mobile phone with a video phone function (hereinafter abbreviated as “mobile phone”) 2 and a TV receiver 3.

  First, a schematic configuration of the mobile phone 2 will be described. The mobile phone 2 includes a video input unit (video input unit) 10, an audio input unit (audio input unit) 11, a video display unit (video display unit) 12, an audio output unit (audio output unit) 13, an AV codec unit (AV The configuration includes a codec unit 14, a wireless processing unit (wireless communication unit) 15, an antenna (wireless communication unit) 16, an operation unit (operation unit) 17, and a control unit 18.

  The video input unit 10 captures a subject to generate video data, and transmits the generated video data to the video display unit 12 and the AV codec unit 14 to input video. Specifically, as the video input unit 10, an image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-oxide Semiconductor) that converts light from a subject into an electric signal, and an electric signal from the image sensor. A configuration including a video processing circuit for converting into digital video data of each color of RGB is given.

  The audio input unit 11 inputs audio by converting audio into audio data and transmitting the converted audio data to the AV codec unit 14. Specifically, the audio input unit 11 includes a microphone that converts sound waves into an electric signal, and an audio input processing circuit that includes an A / D converter, an amplifier, and the like, and converts the electric signal from the microphone into digital audio data. It is the composition provided.

  The video display unit 12 receives video data from the video input unit 10 and the AV codec unit 14 and displays video based on the received video data. Specifically, the video display unit 12 includes a display element such as a plasma display, a liquid crystal display (LCD), and an EL (Electroluminescence) display, and a driver circuit that drives the display element based on received video data. is there.

  The audio output unit 13 receives audio data from the AV codec unit 14 and outputs audio based on the received audio data. Specifically, the audio output means includes a D / A converter, an amplifier, and the like, and includes an audio output processing circuit that converts received audio data into an electric signal, and a speaker and an earphone that convert the electric signal into a sound wave. It is a configuration. Note that the mobile phone uses an earphone when making a call, and a speaker when making a videophone call or notification of an incoming call.

  The AV codec unit 14 encodes and decodes video data and audio data. FIG. 2 shows a schematic configuration of the AV codec unit 14 used in a cellular phone with a video phone function. As illustrated, the AV codec unit 14 includes a video encoding unit 41, an audio encoding unit 42, an AV multiplexing unit 43, an AV separation unit 44, a video decoding unit 45, and an audio decoding unit 46. is there. Note that the AV codec unit 14 is usually provided by a one-chip LSI (Large Scale Integrated Circuit).

  The video encoding unit 41 encodes video data input from the video input unit 10 or the like, and the audio encoding unit 42 encodes audio data input from the audio input unit 11 or the like. is there. The AV multiplexing unit 43 multiplexes the video data and the audio data encoded by the video encoding unit 41 and the audio encoding unit 42, and the AV stream data that is the multiplexed data is transmitted via the control unit 18. The data is output to the wireless processing unit 15 or the like.

  On the other hand, the AV separation unit 44 separates AV stream data input from the wireless processing unit 15 or the like via the control unit 18 into encoded video data and audio data. The video decoding unit 45 decodes the video data separated by the AV separation unit 44 and outputs the decoded video data to the video display unit 12 or the like. The audio decoding unit 46 decodes the separated audio data and outputs the decoded audio data to the audio output unit 13 or the like.

  Examples of video data codecs include ITU-T H.264. H.263 and MPEG-4. Here, ITU-T is an abbreviation for International Telecommunications Union Telecommunication Standardization Sector, and MPEG is an abbreviation for Moving Picture Experts Group. An example of the audio data codec is GSM-AMR. Here, GSM is an abbreviation for Global System for Mobile communication, and AMR is an abbreviation for Adaptive Multirate.

  The radio processing unit 15 converts the data received from the control unit 18 into a format suitable for radio transmission, transmits the converted radio signal to the outside via the antenna 16, and transmits the radio signal received from the outside via the antenna 16. The signal is converted into the original format, and the converted data is transmitted to the control unit 18. Specifically, the wireless processing unit 15 performs channel codec processing, data modulation / demodulation processing, baseband signal processing, RF (Radio Frequency) processing, and the like.

  The operation unit 17 creates operation data and transmits it to the control unit 18 when a user operates an input device provided on the surface of the mobile phone 2. Examples of input devices include button switches and touch panels.

  The control unit 18 comprehensively controls various components in the mobile phone 2. The function of the control unit 18 is realized by a CPU (Central Processing Unit) executing a program stored in a storage device such as a RAM (Random Access Memory) or a flash memory. The detailed configuration of the control unit 18 will be described later.

  Furthermore, in the present embodiment, the mobile phone 2 includes a video I / F (interface) unit 20, a video signal output unit 21, an audio I / F unit 22, and an audio signal output unit 23 as external output means. There is an IR transmission unit 24 as an infrared transmission means.

  The video I / F unit 20 converts the video data from the AV codec unit 14 into a signal format that can be used by the TV receiver 3 that is an external display device. For example, when the video data from the AV codec 14 is RGB digital video data and the video signal used in the TV receiver 3 is an NTSC (National Television System Committee) analog video signal. The video I / F unit 20 performs D / A conversion processing and NTSC encoding processing. When a PC (Personal Computer) display is used instead of the TV receiver 3 as an external display device, the PC display can use RGB digital video data as it is, so that the video I / F unit 20 Can be omitted.

  The video signal output unit 21 outputs the video signal converted by the video I / F unit 20 to the TV receiver 3. For example, when the video signal output unit 21 outputs the video signal to the video input terminal of the TV receiver 3 via the video cable 25 as shown in the figure, the video signal output unit 21 includes a video output terminal.

  The audio I / F unit 22 converts the audio data from the AV codec unit 14 into a signal format that can be used by the TV receiver 3. For example, when the audio data from the AV codec unit 14 is PCM (pulse code modulation) data and the audio signal used in the TV receiver 3 is an analog audio signal, the audio I / F unit 22 D / A conversion processing is performed.

  The audio signal output unit 23 outputs the audio signal converted by the audio I / F unit 22 to the TV receiver 3. For example, the audio signal output unit 23 includes an audio output terminal when the audio signal is output to the audio input terminal of the TV receiver 3 via the audio cable 26 as illustrated.

  Note that the output of the video signal and the audio signal may be performed by wire as described above, or wirelessly such as IrDA, Bluetooth (registered trademark), IEEE802.11, etc. as long as it can be used by the TV receiver 3. You can go there. When performing wirelessly, the video signal output unit 21 and the audio signal output unit 23 need to perform processing for converting the video signal and the audio signal into a format suitable for wireless. The video signal and the audio signal may be output in a serial format or in a parallel format.

  The IR transmission unit 24 receives a control signal for remotely controlling the TV receiver 3 from the control unit 18, converts the received control signal into a format suitable for infrared transmission, and transmits the infrared signal by infrared. Since recent cellular phones 2 are equipped with an IrDA (Infrared Data Association) communication module for performing infrared communication, this IrDA communication module may be used as the IR transmitter 24.

  Next, the configuration of the TV receiver 3 will be described. The TV receiver 3 used in the present embodiment is a general TV receiver having an infrared remote control function, in which the video signal is an NTSC video signal, which includes a video input terminal and an audio input terminal. It is. As shown in FIG. 1, the TV receiver 3 includes a video signal input unit 30, an audio signal input unit 31, a TV antenna 32, a TV tuner unit 33, an input changeover switch 34, a video display unit 35, and an audio output unit 36. , IR receiving unit 37, control unit 38, and power supply unit 39.

  The video signal input unit 30 receives the video signal from the video signal output unit 21 of the mobile phone 2 and has a video input terminal, for example. The video signal input unit 30 transmits the input video signal to the changeover switch 34.

  The audio signal input unit 31 receives an audio signal from the audio signal output unit 23 of the mobile phone 2 and has, for example, an audio input terminal. The audio signal input unit 31 transmits the input audio signal to the changeover switch 34.

  Note that the input of the video signal and the audio signal may be performed by wire as described above, or may be performed wirelessly, and when performed wirelessly, the video signal input unit 30 and the audio signal input unit 31 are It is necessary to include wireless receiving means such as an antenna for receiving a wireless signal and wireless processing means for converting the wireless signal into the original format.

  The TV tuner unit 33 selects and receives a radio wave of a desired channel from the outside via the antenna 32, converts this into a video signal and an audio signal of a predetermined format such as NTSC format, and transmits it to the changeover switch 34. To do.

  Based on an instruction from the control unit 38, the changeover switch 34 transmits a video signal and an audio signal to the video display unit 35 and the audio output unit 36, a video signal and an audio signal from the TV tuner unit 33, and a video signal input unit. 30 and the video signal and the audio signal from the audio signal input unit 31 are switched.

  The video display unit 35 receives a video signal from the changeover switch 34 and displays a video based on the received video signal. Specifically, like the video display unit 12, the video display unit 35 is based on display elements such as an LCD, an EL display, a PDP (Plasma Display Panel), a CRT (Cathode Ray Tube), and the received video signal. And a driver circuit for driving the display element.

  The audio output unit 36 receives an audio signal from the changeover switch 34 and outputs audio based on the received audio signal. Specifically, the audio output unit 36 includes an audio output processing circuit such as an amplifier, and a speaker that converts an electric signal into a sound wave.

  The IR receiving unit 37 receives a control signal transmitted by infrared rays from the IR transmitting unit 24 of the mobile phone 2, converts the received control signal into the original format, and transmits it to the control unit 38.

  The control unit 38 controls various configurations in the TV receiver 3 in an integrated manner. In the present embodiment, the control unit 38 receives a control signal from the IR receiving unit 37, and performs switching control in the changeover switch 34 and power feeding control in the power supply unit 39 based on the received control signal.

  The power supply unit 39 supplies power to or stops various components in the TV receiver 3 based on instructions from the control unit 38.

  According to the above configuration, the video telephone system 1 of the present embodiment can output the video signal of the partner video from the video signal output unit 21 to the TV receiver 3, so that the TV receiver 3 having a wider display screen than the mobile phone 2. The other party's video can be output to the other, making it easier to see the other party's video. Similarly, since the audio signal of the other party can be output from the audio signal output unit 23 to the TV receiver 3, the other party's voice can be output from the TV receiver 3 having a higher output speaker than the mobile phone 2. The previous voice is easy to hear.

  In addition, since the mobile phone 2 includes the video I / F unit 20, the video signal output from the video signal output unit 21 can be used as it is in the TV receiver 3, so that the existing TV receiver 3 is used. Can do. Similarly, by providing the audio I / F unit 22, the audio signal output from the audio signal output unit 23 can be used as it is in the TV receiver 3, so that the existing TV receiver 3 can be used.

  In addition, since the cellular phone 2 includes the IR transmission unit 24, the TV receiver 3 can be remotely operated with infrared rays, so that the TV receiver 3 is not directly operated or another remote controller is used. The other party's video can be displayed on the TV receiver 3, and the user's trouble can be saved.

  Next, details of the control unit 18 in the mobile phone 2 will be described. FIG. 3 shows a schematic configuration of the control unit 18. As illustrated, the control unit 18 includes a call control unit 50, a communication service processing unit 51, an AV codec control unit 52, a display control unit (video selection unit, display control unit) 53, and an IR control unit (infrared transmission control unit). ) 53.

  The call control unit 50 performs various processes relating to the start and end of a call, such as a call process from the other party, a call process to the other party, and a call end process. Specifically, when there is a call from the other party, the call control unit 50 determines whether it is a request for a call, a request for a video call, or an incoming e-mail, and communicates the determination result. The service processing unit 51 is notified. In addition, the call control unit 50 calls the other party based on the communication service selected by the communication service processing unit 51.

  In addition, the call control unit 50 transmits and receives stream data between the AV codec unit 14 and the wireless processing unit 15 during a call or during a video call, and during communication of various data such as e-mail, the communication is performed. Control is performed so that data is transmitted and received between the service processing unit 51 and the wireless processing unit 15.

  The communication service processing unit 51 performs processing corresponding to various communication services such as a call service, a video phone service, and an e-mail service, and based on the communication service, an AV codec control unit 52, a display control unit 53, and IR control The unit 53 is controlled. Processing of the communication service is executed by receiving a user instruction from the operation unit 17 or by receiving a call from the other party from the call control unit 50. In the present embodiment, control of the AV codec control unit 52, the display control unit 53, and the IR control unit 53 performed by the communication service processing unit 51 will be described later.

  The AV codec control unit 52 controls the AV codec unit 14 based on the communication service performed by the communication service processing unit 51. Specifically, when performing a call service, the AV codec unit 14 performs only codec (encoding and decoding) processing of audio data under the control of the AV codec control unit 52. When performing a video phone service, the AV codec unit 14 encodes and multiplexes video data and audio data and also separates and decodes stream data under the control of the AV codec control unit 52. .

  The display control unit 53 controls the video display unit 12 based on the communication service performed by the communication service processing unit 51. For example, when there is a call from the other party, the display control unit 53 controls the display unit 53 to display the other party's telephone number, video phone request, incoming e-mail, etc. on the display screen of the video display unit 12. Various information is notified.

  In the present embodiment, when the communication service processing unit 51 executes the video phone service, the video display unit 12 displays a video based on the video data from the video input unit 10 under the control of the display control unit 53. . As a result, the captured video of the own device is displayed on the video display unit 12.

  The IR control unit 53 controls the IR transmission unit 24 based on the communication service performed by the communication service processing unit 51. In the present embodiment, when the communication service processing unit 51 starts a video phone service, the IR control unit 53 sends a control signal for switching the video input of the TV receiver 3 from the TV input to the external input to the IR transmission unit 24. Send. Further, when the communication service processing unit 51 ends the video phone service, the IR control unit 53 transmits a control signal for switching the video input of the TV receiver 3 from the external input to the TV input to the IR transmission unit 24.

  In the video telephone system 1 having the above-described configuration, processing operations performed by the control unit 18 when a video telephone is requested from the other party will be described with reference to FIGS. FIG. 4 shows a processing operation for automatically starting a videophone when a videophone is requested from the other party.

  First, it waits until the call control unit 50 receives an incoming call signal from the outside (step S10 (hereinafter may be abbreviated as “S10”. The same applies to other steps)). Upon receiving the incoming call, the communication service processing unit 51 determines whether or not the call signal is related to a video phone request (S11). If the call signal is not related to a video phone request (NO in S11). And other communication service processing. Since other communication service processes are the same as those in the prior art, description thereof is omitted.

  On the other hand, if the request is related to a videophone request (YES in S11), the AV codec control unit 52 instructs the AV codec unit 14 to perform the AV codec processing of the videophone as described above (S12). ). Thereby, the video data and audio data input by the mobile phone 2 are transmitted to the other party, and the video data and audio data from the other party can be acquired.

  Next, the IR control unit 53 generates a control signal for switching from the TV input to the external input to the TV receiver 3 and transmits it to the IR transmission unit 24 (S13). At this time, the control signal is transmitted to the control unit 38 of the TV receiver 3 via the IR transmission unit 24 and the IR reception unit 37, and the changeover switch 34 is connected to the video signal input unit 30 and the TV tuner unit 33 from the TV tuner unit 33 side. Switch to the audio signal input unit 31 side.

  Thereby, the video data from the other party output from the AV codec unit 14 of the mobile phone 2 is converted into the video I / F unit 20, the video signal output unit 21, the video cable 25, the video signal input unit 30, and the changeover switch 34. Is transmitted to the video display unit 35, so that the video from the other party is displayed on the display screen of the TV receiver 3. Similarly, the audio data from the other party output from the AV codec unit 14 of the mobile phone 2 is an audio I / F unit 22, an audio signal output unit 23, an audio cable 26, an audio signal input unit 31, and a changeover switch 34. Is transmitted to the audio output unit 36, the audio from the other party is output from the speaker of the TV receiver 3.

  Next, the display control unit 53 instructs the video display unit 12 to display the video from the video input unit 10 (S14). As a result, the captured image of the own device is displayed on the display screen of the mobile phone 2. Thereafter, the video phone start process ends, and the video phone is executed. Note that steps S12 to S14 may be switched in order or performed simultaneously.

  In addition, since the TV receiver 3 may be turned off, the IR control unit 53 generates a control signal for turning on the TV receiver 3 before performing step S13. It is desirable to transmit to the IR transmitter 24. When the control unit 38 of the TV receiver 3 receives this control signal, the power supply unit 39 supplies power to each unit under the control of the control unit 38, and the TV receiver 3 operates. At this time, if the changeover switch 34 has already been switched to the external input side, it is not necessary to perform the processing operation of step S13.

  FIG. 5 shows the processing operation for terminating the videophone. First, the communication service processing unit 51 waits until an operation for terminating a call is performed by the operation unit 17 or an incoming call signal is received from the other party (external) (S20 / S21).

  When there is a call end operation or an incoming call signal, the IR control unit 53 generates a control signal for switching from external input to TV input to the TV receiver 3 and transmits it to the IR transmission unit 24 (S22). At this time, the control signal is transmitted to the control unit 38 of the TV receiver 3 via the IR transmission unit 24 and the IR reception unit 37, and the changeover switch 34 is connected to the video signal input unit 30 and the audio signal input unit 31 side. To the TV tuner 33 side. Thereby, the TV video from the TV tuner unit 33 is displayed on the display screen of the TV receiver 3, and the TV sound from the TV tuner unit 33 is output from the speaker of the TV receiver 3.

  Then, the display control unit 53 instructs the video display unit 12 to stop the display (S23), the AV codec control unit 52 instructs the AV codec unit 14 to stop the AV codec processing (S23), and the video phone Exit. In addition, each process of step S22-S24 may replace order, and may be performed simultaneously.

  If the user does not see the TV video after the video phone is finished, the IR control unit 53 generates a control signal for turning off the power to the TV receiver 3 instead of step S22, and transmits the IR signal. You may transmit to the part 24. When the control unit 38 of the TV receiver 3 receives this control signal, the power supply unit 39 interrupts the power supply to each unit under the control of the control unit 38, and the TV receiver 3 stops its operation.

  When the video phone is terminated, a dialog for inquiring whether or not the user views the TV video is displayed on the display screen of the TV receiver 3 or the mobile phone 2, and when the TV video is viewed, the video input is set to TV. When the control signal for switching to the input is not viewed, the control signal for turning off the power may be transmitted from the IR transmitter 24 to the TV receiver 3. In this way, by allowing the user to select either one, it is possible to flexibly respond to each usage scene, and it is possible to respond to either the case where the power is turned off after the videophone call or the case where the power can be kept on. be able to.

  As described above, the video telephone system 1 of the present embodiment displays the partner video on the TV receiver 3 and displays the video on the video display unit 12 of the mobile phone 2, so that the entire display screen of the mobile phone 2 is displayed. The self image can be displayed on the display, and the self image can be easily seen.

  In addition, in order to improve the visibility of the display screen in the mobile phone 2, it is not necessary to increase the screen size and thus the device size unnecessarily, or to adopt a high-resolution display screen, and to increase the manufacturing cost of the mobile phone 2. Various problems such as an increase in size and an increase in power consumption can be solved.

  In addition to the face image of the other party, the subject may be a relatively detailed landscape (timetable, text, etc.), and the output to a large screen greatly improves the visibility. Can also be expected.

  In addition, when a video phone request is received by the mobile phone 2, the display image on the TV receiver 3 is automatically switched to the partner video, so that the user can perform some operation to display the partner video on the TV receiver 3. This eliminates the need for the user and saves the user time.

  When a videophone request is transmitted from the own device to the other party, steps S10 and S11 may be omitted from the above processing operations. In this case, since the display image of the TV receiver 3 is automatically switched to the partner video in response to the transmission of the videophone request, the user needs to perform some operation to display the partner video on the TV receiver 3. And the user's trouble can be saved.

  In addition, when the video phone is terminated, the display image of the TV receiver 3 is automatically switched to the TV image, so that the user does not need to perform any operation to display the TV image on the TV receiver 3 and can be used. Can be saved. Similarly to the above, a dialog is displayed on the display screen of the TV receiver 3 or the mobile phone 2 for inquiring whether or not to switch to the original TV image when the video phone is ended, and the user selects either of them. You may do it.

[Embodiment 2]
Next, another embodiment of the present invention will be described with reference to FIGS. The video phone system of this embodiment is different from the video phone system 1 shown in FIG. 1 in video phone start processing and end processing, and the other configurations and processing operations are the same. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  FIG. 6 shows a processing operation for starting a video call when a video call is requested from the other party. Compared with the video telephone start process shown in FIG. 4, the video telephone start process in this embodiment is a process in which the IR control unit 53 generates a control signal and transmits it to the IR transmitter 24. The other processing operations are the same except that the operation is performed in conjunction with the telephone start operation. Note that the same processing operations as those described in the above embodiment are denoted by the same reference numerals and description thereof is omitted.

  First, when steps S10 and S11 are performed and the call signal is related to a videophone request (YES in S11), the display control unit 53 displays that the videophone call signal has been received. The video display unit 12 is instructed as described above (S30). Thereby, the user can know the request of the video phone.

  Next, the communication service processing unit 51 waits until the user performs a videophone start operation on the operation unit 17 (S31). When the user performs a videophone start operation, in conjunction with the start operation, the IR control unit 53 generates a control signal for switching from the TV input to the external input for the TV receiver 3 to the IR transmission unit 24. Transmit (S32). Next, by performing step S12, the video from the other party is displayed on the display screen of the TV receiver 3, and the sound from the other party is output from the speaker of the TV receiver 3.

  Then, by performing step S <b> 14, the captured image of the own device is displayed on the display screen of the mobile phone 2. Thereafter, the video phone start process ends, and the video phone is executed. In addition, step S30-S32, step S12, and step S14 may replace order, and may be performed simultaneously. Similarly to the above embodiment, before performing step S32 or instead of step S32, the IR control unit 53 turns on the power to the TV receiver 3 in conjunction with the videophone start operation. It is desirable to generate a control signal and transmit it to the IR transmitter 24.

  Therefore, when the user confirms the videophone request and performs the videophone start operation, the IR transmitter 24 transmits an infrared signal to the IR receiver 37 of the TV receiver 3, thereby The receiver 3 can be reliably switched from the TV input to the external input.

  When requesting a video call from the own device to the other party, steps S10, S11, and S30 may be omitted from the above processing operations.

  FIG. 7 shows the processing operation for terminating the videophone. Compared with the video telephone end process shown in FIG. 5, the video telephone end process in this embodiment is a process in which the IR control unit 53 generates a control signal and transmits it to the IR transmission unit 24. The other processing operations are the same except that the operation is performed in conjunction with the telephone ending operation. Note that the same processing operations as those described in the above embodiment are denoted by the same reference numerals and description thereof is omitted.

  First, the communication service processing unit 51 waits until the user performs an operation for ending the call with the operation unit 17 (S40), and when there is an incoming call signal from the outside during the standby (S41), The display control unit 53 instructs the video display unit 12 to display that the incoming call signal has been received (S42). Thereby, the user can know the end of the video call.

  When the call termination operation is performed (YES in S40), in conjunction with this operation, the IR control unit 53 generates a control signal for switching from the external input to the TV input for the TV receiver 3 to generate the IR transmission unit 24. (S43). Thereby, the TV video from the TV tuner unit 33 is displayed on the display screen of the TV receiver 3, and the TV sound from the TV tuner unit 33 is output from the speaker of the TV receiver 3.

  And after performing step S22 * S23, a video telephone is complete | finished. In addition, each process of step S43 * S23 * S24 may replace order and may be performed simultaneously. Further, as in the above embodiment, instead of step S43, the IR control unit 53 generates a control signal for turning off the power to the TV receiver 3 in conjunction with the call end operation and generates an IR transmission unit. 24 may be transmitted.

  Therefore, when the user performs a videophone termination operation, the IR transmitter 24 transmits an infrared signal to the IR receiver 37 of the TV receiver 3, so that the TV receiver 3 can be connected to the TV from the external input. Switch to input reliably.

[Embodiment 3]
Next, still another embodiment of the present invention will be described with reference to FIGS. Compared with the video phone system 1 shown in FIG. 1, the video phone system of the present embodiment detects the connection destination of the video data and audio data from the AV codec unit when the mobile phone detects the connection with the TV receiver. The video display unit and the audio output unit are switched to the outside, and other configurations and processing operations are the same. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  FIG. 8 shows a schematic configuration of the video telephone system 1 of the present embodiment. In the present embodiment, the video signal output unit 21 and the audio signal output unit 23 of the mobile phone 2 detect the connection with the TV receiver 3 and transmit a detection signal to the control unit 18. The connection with the TV receiver 3 is detected between the video signal output unit 21 and the audio signal output unit 23 of the mobile phone 2 and the video signal input unit 30 and the audio signal input unit 31 of the TV receiver 3. The communication connection may be established accurately, or may be simply performed by detecting that the cable is connected to the video signal output unit 21 and the audio signal output unit 23 by a change in resistance or the like. .

  In the present embodiment, the mobile phone 2 outputs the video data and audio data from the AV codec unit 14 to the video display unit 12 and audio output unit 13 side, the video I / F unit 20 and the audio I / F. A changeover switch 25 for switching between the F section 22 side is newly provided. The switching operation in the selector switch 25 is performed based on an instruction from the control unit 18.

  FIG. 9 shows a schematic configuration of the control unit 18 in the mobile phone 2. The control unit 18 of this embodiment newly includes a connection detection unit (connection detection unit) 55 and a switching control unit (external output control unit) 56, as compared with the control unit 18 shown in FIG.

  The connection detection unit 55 detects the connection with the TV receiver 3 by receiving detection signals from the video signal output unit 21 and the audio signal output unit 23, and transmits the detection signal to the communication service processing unit 51. Is. The communication service processing unit 51 instructs each block based on the detection signal received from the connection detection unit 55 when performing a videophone service.

  Specifically, when the TV receiver 3 is not connected, the change control unit 56 switches the changeover switch 27 to the video display unit 12 and the audio output unit 13 in accordance with an instruction from the communication service processing unit 51. The display control unit 53 controls the video display unit 12 to synthesize and display the video of its own device and the video of the other party. Thereby, a normal videophone using the mobile phone 2 can be performed. Also, no instruction is given from the communication service processing unit 51 to the IR control unit 54. Thereby, since the IR transmission unit 24 does not transmit the control signal generated by the IR control unit 54 by infrared rays, malfunction can be prevented.

  On the other hand, when connected to the TV receiver 3, the changeover control unit 56 sets the changeover switch 27 to the video I / F unit 20 and audio I / F unit 22 side according to an instruction from the communication service processing unit 51. The display control unit 53 performs control so that the video display unit 12 displays only its own video, and the IR control unit 54 generates a control signal for controlling the TV receiver 3 to generate IR. The data is transmitted to the transmission unit 24. As a result, the video and audio of the other party can be displayed on the display screen of the TV receiver 3 and the video of the own apparatus can be displayed on the display screen of the mobile phone 2 as described above.

  Therefore, the video telephone system 1 of this embodiment normally displays the partner video on the display screen of the mobile phone 2 and can display the partner video on the display screen of the TV receiver 3 when connected to the TV receiver 3. Therefore, it is not necessary for the user to perform an operation for outputting the partner image to the TV receiver 3, and the user's trouble can be saved.

[Embodiment 4]
Next, still another embodiment of the present invention will be described with reference to FIG. The video phone system of the present embodiment is different from the video phone system 1 shown in FIG. 1 in that the configuration of the video input unit, audio input unit, and video display unit in the mobile phone is defined in more detail. Other configurations and processing operations are the same. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  In the mobile phone 2 according to the present embodiment, a camera as a photographing device, a microphone as a voice input device, and a display as a display device are provided with operation buttons (hereinafter, this side is referred to as “inside”). And the opposite side (hereinafter, this side is referred to as “outside”).

  That is, the video input unit includes an inner camera 60 and an outer camera 62 as photographing means for performing photographing, a changeover switch 64 that switches between a video signal from the inner camera 60 and a video signal from the outer camera 62, and a changeover switch 64. The video processing unit 66 converts the video signal into video data suitable for processing inside the mobile phone 2.

  The voice input unit also switches between an inner microphone (microphone) 61 and an outer microphone 63 as microphone means for converting sound waves into an electric signal, and a switch for switching between a voice signal from the inner microphone 61 and a voice signal from the outer microphone 63. 65 and an audio processing unit 67 that converts an audio signal from the changeover switch 65 into audio data suitable for processing inside the mobile phone 2.

  Further, the video display unit includes a display processing unit 68 that converts the video data from the video processing unit 66 and / or the video data from the AV codec unit 14 into a video signal suitable for display on a display, and display processing. The selector switch 69 that switches the output destination of the video signal from the unit 68 and the inner display 70 and the outer display 71 as display output means for displaying video based on the video signal from the selector switch 69 are provided. Note that the switching operation of the selector switches 64, 65, and 68 is controlled by the control unit 18.

  According to the above configuration, by using the inner microphone 61 when using the inner camera 60 and controlling the changeover switches 64 and 65 so as to use the outer microphone 63 when using the outer camera 62, A microphone provided on the photographing side can be used, and sound data with an appropriate volume can be created.

  In addition, the photographer refers to his / her own image by displaying his / her own image captured by the inner camera 60 on the outer display 71 or by displaying his / her own image captured by the outer camera 62 on the inner display 70. Therefore, it is possible to photograph accurately.

[Embodiment 5]
Next, another embodiment of the present invention will be described with reference to FIG. The video phone system of the present embodiment is different from the video phone system 1 shown in FIG. 10 in the configuration of the video display unit in the mobile phone, and the other configurations and processing operations are the same. In addition, the same code | symbol is attached | subjected to the structure which has the function similar to the structure demonstrated in the said embodiment, and the description is abbreviate | omitted.

  In the present embodiment, the video display unit of the mobile phone 2 includes an inner video display unit 73 that displays video on the inner display and an outer video display unit 73 that displays video on the outer display. In the present embodiment, the changeover switch that transmits the video data from the video processing unit 66 to one of the inner video display unit 73 and the outer video display unit 74 and transmits the video data from the AV codec unit 14 to the other. 72 is further provided. The switching operation in the selector switch 72 is controlled by the control unit 18.

According to the above configuration, the partner image can be displayed on the display provided on the same side as the camera that is shooting, and the subject image can be displayed on the display provided on the side opposite to the camera. In this case, the photographed person can see the other party's video, so that he / she can enjoy a videophone call, and the photographer can view his / her own video, that is, the image of the photographed person. Note that in this case, it is sufficient that the own image can be used as the viewfinder image. Therefore, the other party's image is displayed on the display with the larger display size and the display with the smaller display size is selected. It is desirable to display machine images.

  In the case of the present embodiment, the other party video and the own video are displayed on the mobile phone 2, so it is not necessary to connect to the TV receiver 3. In this case, the video I / F unit 20, the video signal output unit 21, the audio I / F unit 22, and the audio signal output unit 23 can be omitted.

  In addition, this invention is not limited to said embodiment, A various change is possible in the range shown to the claim.

  For example, in the above embodiment, the TV receiver 3 displays the other party's video and outputs the other party's voice, but the audio output unit 13 of the mobile phone 2 can also output the other party's voice. Therefore, it is not necessary to output the other party's voice from the TV receiver 3. In this case, the audio I / F unit 22 and the audio signal output unit 23 can be omitted from the configuration of the mobile phone 2.

  In addition, since digital terrestrial broadcasting will be started in the near future, TV receivers that can directly input video data (digital RGB data) and audio data (PCM data) output from the AV codec unit 14 will become popular in the near future. there's a possibility that. When such a TV receiver is used, the video I / F unit 20 and the audio I / F unit 22 can be omitted from the configuration of the mobile phone 2.

  In addition, each configuration of the video I / F unit 20, the video signal output unit 21, the audio I / F unit 22, and the audio signal output unit 23 is a device external to the mobile phone 2 such as a cradle that accommodates the mobile phone 2. It can also be provided. In this case, the mobile phone 2 only needs to have an output terminal for outputting video data and audio data, and the device scale of the mobile phone 2 is prevented from increasing. Further, if an external device is provided with an IR transmitter, and the external device is fixed so that the IR transmitter emits infrared rays toward the IR receiver 37 of the TV receiver 3, remote control using infrared rays can be performed. It can be done reliably.

  Furthermore, in the above-described embodiment, the case where a video phone request is received from the mobile phone of the other party has been mainly described, but it is needless to say that the present invention can be appropriately applied when a video phone request is transmitted from the own device.

  Still further, switching means capable of switching the display contents of the TV receiver 3, the display contents of the inner display 70, and the display contents of the outer display 71 may be provided. As a specific example, the display contents of each display screen may be switched each time a predetermined key of the mobile phone 2 is pressed during a video call.

  Each block of the mobile phone 2 and the control unit 18 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the mobile phone 2 includes a CPU (central processing unit) that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, a RAM (random access memory) that expands the program, A storage device (recording medium) such as a memory for storing the program and various data is provided. An object of the present invention is to provide a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program for the mobile phone 2 which is software for realizing the above-described functions is recorded so as to be readable by a computer. This can also be achieved by supplying the mobile phone 2 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a disk system including a magnetic disk such as a flexible disk / hard disk and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R, and an IC card. A card system such as an optical card (including a memory card) or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  The mobile phone 2 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a carrier wave or a data signal sequence in which the program code is embodied by electronic transmission.

  As described above, the cellular phone with a video phone function according to the present invention is characterized in that the other party video is displayed on an external display device in the video phone. However, the present invention is not limited to a mobile phone with a video phone function, and may be applied to, for example, a mobile phone that displays an attached image on an external display device when an e-mail attached with an image is received. it can.

1 is a block diagram illustrating a schematic configuration of a videophone system according to an embodiment of the present invention. It is a block diagram which shows schematic structure of the AV codec part in the mobile telephone of the said video telephone system. It is a block diagram which shows schematic structure of the control part in the said mobile telephone. It is a flowchart which shows the flow of the start process of the video telephone performed in the said control part. It is a flowchart which shows the flow of the completion | finish process of the video telephone performed in the said control part. 6 is a flowchart showing a flow of a videophone start process executed by a control unit of a mobile phone in a videophone system according to another embodiment of the present invention. It is a flowchart which shows the flow of the completion | finish process of the video telephone performed in the said control part. It is a block diagram which shows schematic structure of the video telephone system which is another embodiment of this invention. It is a block diagram which shows schematic structure of the control part of the mobile telephone in the said video telephone system. It is a block diagram which shows schematic structure of the video telephone system which is another embodiment of this invention. It is a block diagram which shows schematic structure of the video telephone system which is other embodiment of this invention.

Explanation of symbols

1 Video phone system 2 Mobile phone with video phone function 3 TV receiver (display device at output destination)
10 Video input unit (Video input means)
11 Voice input unit (voice input means)
12 Video display section (video display means)
13 Voice output unit (voice output means)
14 AV codec section (AV codec means)
15 Wireless processor (wireless communication means)
16 Antenna (wireless communication means)
17 Operation part (operation means)
20 Video I / F part (external output means)
21 Video signal output unit (external output means)
22 Audio I / F section (external output means)
23 Audio signal output unit (external output means)
24 IR transmitter (infrared transmitter)
53 Display control unit (video selection means, display control means)
54 IR control unit (infrared transmission control means)
55 Connection detection unit (connection detection means)
56 switching control unit (external output control means)
60/62 Camera (photographing means)
61.63 Microphone (microphone means)
70 · 71 display (display output means)

Claims (22)

In a mobile terminal having a video phone function, wirelessly transmitting video data and audio data of its own terminal, and receiving video data and audio data of the counterpart terminal wirelessly,
A portable terminal comprising external output means for outputting video data of the terminal and / or the partner terminal to the outside.   2. The portable terminal according to claim 1, wherein the external output unit converts the video data into a format suitable for an output destination display device that outputs the video data.   2. The portable terminal according to claim 1, wherein the external output unit further outputs voice data of the terminal and / or the partner terminal to the outside.   4. The portable terminal according to claim 3, wherein the external output means converts the audio data into a format suitable for an output audio output device that outputs the audio data. Video input means for shooting and creating video data of the terminal;
Video display means for displaying video based on video data;
Video output by the external output means from among the video data of the terminal created by the video input means, the video data of the counterpart terminal, and the video data of both the local terminal and the counterpart terminal 2. The portable terminal according to claim 1, further comprising video selection means for selecting data and video data to be displayed by the video display means. The video input means includes first photographing means for photographing,
The video display means includes first display output means for displaying and outputting video in the same direction as the shooting direction of the first shooting means, and second display output means for displaying and outputting video in the direction opposite to the shooting direction. With
The video selection means further includes: first video data of the own terminal created by the video input means, video data of the counterpart terminal, and video data of both the self terminal and the counterpart terminal. 6. The portable terminal according to claim 5, wherein the video data to be displayed by the display output means and the video data to be displayed by the second display output means are respectively selected. The video input means further includes a second photographing means for photographing in a direction opposite to the photographing direction of the first photographing means,
When the first photographing means performs photographing, the video selecting means is video data for the second display output means to display the video data of the terminal created by the video input means by the photographing. On the other hand, when the second photographing unit performs photographing, the video data of the terminal created by the video input unit by the photographing is used as video data for display by the first display output unit. The mobile terminal according to claim 6, wherein the mobile terminal is selected. Infrared transmission means for transmitting a signal with infrared rays to a display device to which the external output means outputs video data; and
2. The portable terminal according to claim 1, further comprising: an infrared transmission control unit configured to control the infrared transmission unit to transmit a control signal for controlling the output destination display device.   The infrared transmission control means transmits a control signal for turning on the power of the output destination display device when starting the video telephone, and sends the control signal for turning on the output destination display device. 9. The portable terminal according to claim 8, wherein the infrared transmission unit is controlled such that the infrared transmission unit transmits a control signal for turning off the power of the display device.   The infrared transmission control means transmits a control signal for switching the video input of the output destination display device to the video input from the external output means when starting the video telephone, and ends the video telephone. The said infrared transmission means is controlled so that the said infrared transmission means transmits the control signal which switches the video input of the said output destination display apparatus to the original video input when doing Mobile device.   11. The portable terminal according to claim 9, wherein the infrared transmission control means sets a time when a video phone request is received or transmitted as a time when a video phone is started. It further includes an operation means for the user to perform various operations,
11. The infrared transmission control unit according to claim 9 or 10, wherein when the user performs an operation to instruct the start of a video phone via the operation unit, the video phone is started. The portable terminal described. It further includes an operation means for the user to perform various operations,
11. The infrared transmission control means according to claim 9 or 10, wherein when the user performs an operation for instructing termination of the video phone via the operation means, the video phone is terminated. The portable terminal described.   A setting for setting whether the control by the infrared transmission control means is performed automatically when starting or ending a videophone, or informing the user to that effect and based on an instruction from the user The mobile terminal according to claim 9, further comprising means. A connection detecting means for detecting a connection between the external output means and an output destination display device;
2. The portable terminal according to claim 1, further comprising an external output control unit that controls the external output unit to output to the output destination display device only when the connection detection unit detects a connection. . A portable terminal having a video phone function, which wirelessly transmits video data and audio data of its own terminal, and wirelessly receives video data and audio data of a counterpart terminal, and a cradle that accommodates the portable terminal In a video phone system comprising:
The portable terminal includes a transmission unit that transmits data to the cradle.
The cradle includes receiving means for receiving the data from the mobile terminal;
A video telephone system comprising: external output means for outputting the video data of the terminal and / or the partner terminal received by the receiving means to the outside. In a mobile terminal having a video phone function, wirelessly transmitting video data and audio data of its own terminal, and receiving video data and audio data of the counterpart terminal wirelessly,
Video input means for shooting and creating video data;
Voice input means for converting voice to voice data,
The video input means includes first and second photographing means for photographing, and the first and second photographing means are provided so that the photographing directions are opposite to each other,
The sound input means includes first and second microphone means for converting sound into an electric signal, and the first microphone means mainly inputs sound from the photographing direction of the first photographing means. The second microphone means is provided so as to mainly input the sound from the photographing direction of the second photographing means,
The video input means and the audio input means so as to obtain video data and audio data from any one of the first imaging means and the first microphone means, and the second imaging means and the second microphone means. An input control means for controlling the mobile terminal. In a mobile terminal having a video phone function, wirelessly transmitting video data and audio data of its own terminal, and receiving video data and audio data of the counterpart terminal wirelessly,
Video input means for shooting and creating video data;
Video display means for displaying video based on video data,
The video input means includes photographing means for photographing,
The video display means includes first display output means for displaying and outputting video in the same direction as the photographing direction of the photographing means, and second display output means for displaying and outputting video in the direction opposite to the photographing direction. And
The video based on the video data of the terminal created by the video input means by the photographing of the photographing means is displayed and output to the second display output means, and the video based on the video data of the counterpart terminal is output to the first display. A portable terminal further comprising display control means for controlling the video display means so as to display and output to the means.   19. The portable terminal according to claim 18, wherein the first display output means has a display screen size larger than that of the second display output means.   The mobile terminal according to any one of claims 1 to 15 and 17 to 19, wherein the mobile terminal is a mobile phone.   A control program for operating the portable terminal according to any one of claims 8 to 14, wherein the control program causes a computer to function as the infrared transmission control means.   A computer-readable recording medium on which the control program according to claim 21 is recorded.

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