JP2005167365A - Data transmitter, information processor performing wireless communication with data transmitter, and data transmitting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data transmitter capable of transmitting/receiving data simultaneously. <P>SOLUTION: A wireless AV station 101 performs wireless communication with a notebook type computer 103 through first and second wireless communication channels 14a and 14b. The wireless AV station 101 transmits data stored in an HDD 312 to the notebook type computer 103 using the first wireless communication channel 14a and transmits data about a TV broadcast program received by a TV tuner, for example, delivered from an input section 211 using the second wireless communication channel 14b. The notebook type computer 103 stores the received data in an HDD 402 or displays it at a display section 403. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a data transmission apparatus such as a home server, and more particularly to a data transmission apparatus having a function of inputting / outputting video / audio data in response to a request from an information processing apparatus and a data transmission method used in the apparatus.

  In recent years, with the progress of information processing technology and communication technology, development of a home network system for connecting electronic devices such as TVs and audio devices has been advanced.

  In a home network system, a home server is connected to an information processing apparatus such as a personal computer via a network. Recently, a home server having a router function for connecting a local network to which the information processing apparatus is connected and an external network such as the Internet has been developed. An information processing apparatus connected to the home server can communicate with another information processing apparatus connected to the home server, a Web server on the Internet, and the like via the home server.

  Furthermore, a home server equipped with a TV function for receiving broadcast data such as a TV program and a function for capturing video / audio data input from an external device such as a video camera has been developed. The home server outputs video / audio data including broadcast data input from the input unit to the TV receiver via the output unit, or stores it in a magnetic disk drive device provided in the home server. Is possible. The video / audio data stored in the magnetic disk drive device can also be output to the TV receiver via the output unit.

Also, the home server can output video / broadcast data including broadcast data input from the input unit or video / audio data stored in the magnetic disk drive device to the information processing device via the network. Therefore, the information processing apparatus was able to reproduce the received video / audio data (see Patent Document 1).
JP 2003-224739 A (page 3, FIG. 1)

  However, in the invention disclosed in Patent Document 1, when the home server and the information processing apparatus perform wireless communication with each other via a network, for example, the home server sends video / broadcast data including broadcast data to the information processing apparatus. It is impossible to simultaneously transmit and receive data between the home server and the information processing apparatus such that the information processing apparatus communicates with a Web server or the like on the Internet via the home server.

  Therefore, the present invention has been made in consideration of the above-described circumstances, and an object thereof is to provide a data transmission apparatus capable of simultaneously transmitting and receiving data.

  In order to achieve the above object, in the invention according to claim 1, an input unit to which data is input from the outside, a storage unit that stores data input through the input unit, and data transmitted to an external device Adding means for adding identification information representing the processing content of the external device to the first wireless communication means for transmitting the data added with the identification information by the adding means to the data input via the input unit to the external device; And a second wireless communication means for transmitting data obtained by adding identification information to the data stored in the storage section by the adding means to an external device.

  According to the present invention, data can be transmitted and received simultaneously.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a configuration of a home network system using a data transmission apparatus according to an embodiment of the present invention. The home network system includes a wireless AV station 101, a TV receiver 102, notebook computers 103 and 106, a desktop computer 104, an external device 105, and the like.

  The wireless AV station 101 is a data transmission device that functions as a home server. The wireless AV station 101 performs services such as viewing broadcast program data such as TV programs, viewing content data input from the external device 105, and connecting to the Internet 12 via a wireless or wired local network in the home. Thus, the information is provided to information processing apparatuses such as the notebook computers 103 and 106 and the desktop computer 104.

  The wireless AV station 101 is connected to an external global network (external network) such as the Internet 12 through a communication line such as ISDN (Integrated Services Digital Network), ADSL (Asymmetric Digital Subscriber line), and CATV (Cable TV). Has been. Further, the wireless AV station 101 is connected to each information processing device in the home via a wired or wireless local network in the home.

  Each of the notebook computers 103 and 106 and the desktop computer 104 is a terminal that also functions as a client of the wireless AV station 101. The notebook computers 103 and 106 are provided with a wireless communication device, and can be connected to the wireless AV station 101 via a wireless communication network (wireless LAN) 14. The desktop computer 104 can be connected to the wireless AV station 101 via a wired communication network (wired LAN) 13.

  The wireless AV station 101 connects the notebook computers 103 and 106 and the desktop computer 104 to the Internet 12, and data between the Web site on the Internet 12 and the notebook computers 103 and 106 and the desktop computer 104. Send and receive.

  An antenna cable connected to the TV broadcast receiving antenna 11 installed outdoors is drawn indoors. A TV receiver 102 and a wireless AV station 101 are connected to the antenna cable. TV program data transmitted from a broadcasting station or the like can be received and reproduced by the TV receiver 102, and can also be received by the wireless AV station 101. The wireless AV station 101 transmits the received broadcast program data to the notebook computers 103 and 106 and the desktop computer 104 via a home wireless or wired local network. The wireless AV station 101 can output the received broadcast program data to the TV receiver 102.

  The wireless AV station 101 is also connected to an external device 105 such as a video player, a camera, or an audio player. The wireless AV station 101 can receive content data from the external device 105. The wireless AV station 101 transmits the received content data to the notebook computers 103 and 106 and the desktop computer 104 through a home wireless or wired local network. The wireless AV station 101 can output the received content data to the TV receiver 102.

  The main functions provided by the wireless AV station 101 will be described below.

Router function The router function is a function for connecting between the wireless or wired local networks 13 and 14 in the home and the Internet 12. By utilizing this function, each of the notebook computers 103 and 106 and the desktop computer 104 communicates with a website on the Internet 12 and communicates with other information processing apparatuses connected to the local network. Is possible.

TV function The TV function is a function for receiving broadcast program data in response to requests from the notebook computers 103 and 106 and the desktop computer 104 connected to the wireless or wired local networks 13 and 14 in the home. It is. The wireless AV station 101 can transmit the received broadcast program data to the requesting information processing apparatus or output it to the TV receiver 102. The wireless AV station 101 includes a plurality of broadcast program reception data units so that a plurality of information processing apparatuses can use the TV function.

TV recording function The wireless AV station 101 includes, for example, a magnetic disk drive device (hard disk drive: HDD) as a large-capacity storage device for recording broadcast program data. The wireless AV station 101 can store, for example, broadcast program data currently being broadcast in the magnetic disk drive while transmitting it to the information processing apparatus. The wireless AV station 101 receives broadcast program data different from the broadcast program data transmitted to the information processing apparatus while transmitting the broadcast program data stored in the magnetic disk drive apparatus to the information processing apparatus. It can be stored in a magnetic disk drive device. Further, the wireless AV station 101 can output broadcast program data stored in the magnetic disk drive device to the TV receiver 102.

External input function The external input function refers to a request from the external device 105 in response to a request from the notebook computers 103 and 106 and the desktop computer 104 connected to the wireless or wired local networks 13 and 14 in the home. This function receives (inputs) content data. The wireless AV station 101 can transmit the content data received from the external device 105 to the requesting information processing apparatus or output it to the TV receiver 102. The wireless AV station 101 can store the content data received from the external device 105 in the magnetic disk drive device.

Content server function The wireless AV station 101 is used as a magnetic disk drive device in response to requests from the notebook computers 103 and 106 and the desktop computer 104 connected to the wireless or wired local networks 13 and 14 in the home. The stored broadcast program data or content data can be transmitted to the requesting information processing apparatus.

Remote control function The wireless AV station 101 has a TV function, a TV recording function, an external input function, and a content server function, such as a notebook computer 103, 106 connected to a wireless or wired local network 13, 14 and a desktop. Remote control from each of the type computers 104 is possible. Further, it is possible to control a TV function, a TV recording function, an external input function, and a content server function of the wireless AV station 101 by using a remote controller unit that operates the wireless AV station 101.

  Next, a system configuration of the wireless AV station 101 according to the first embodiment of the present invention will be described with reference to FIG.

  The wireless AV station 101 includes an AV unit 21, a system unit 31, a power supply unit 41, and a power supply control unit 42. The AV unit 21 includes a first input unit 211, a first output unit 212, and a PCI bus interface (PCI I / F) 213, and performs the above-described TV function, TV recording function, and external input function. used.

  The first input unit 211 includes a TV tuner 221, a video decoder 222, an audio analog-digital converter (ADC) 223, and an MPEG encoder 224. The TV tuner 221 is connected to the TV antenna 11. The TV tuner 221 is a device that receives data related to broadcast programs requested from, for example, notebook computers 103 and 106 and desktop computers 104 connected to local wireless networks 13 and 14 in a home. Based on the TV reception request or the like, for example, a predetermined program channel selection operation, a TV program data reception operation, or the like is performed.

  The video decoder 222 converts the video signal output from the TV tuner 101 into a digital signal. The video decoder 222 also converts a video signal output from the external device 105 such as a video player or a camera into a digital signal. The audio ADC 223 converts the audio signal output from the TV tuner 101 into a digital signal. The audio ADC 223 also converts audio signals output from the external device 105 such as a video player, a camera, and an audio player into digital signals.

  The MPEG encoder 224 synchronizes the digital video signal converted by the video decoder 222 and the digital audio signal converted by the audio ADC 223, and performs code compression on these digital signals according to the MPEG system.

  When a digital signal generated by code compression according to the MPEG system is transmitted to the requesting information processing apparatus or stored in the HDD 312 in the system unit 31, a PCI bus interface (PCI I / F) ) And the system unit 31 via the bus 10. When the digital signal generated by the MPEG encoder 224 is transmitted to the requesting information processing apparatus, the digital signal generated by the MPEG encoder 224 is stored in a buffer area or the like, and the digital signal stored in the buffer area is stored. Transmit to the requesting information processing apparatus.

  When data related to a TV program received by the TV tuner 221 is output to the TV receiver 102 and stored in the HDD 312 in the system unit 31, the digital signal code-compressed by the MPEG encoder 224 is sent via the PCI bus interface 213. Is transmitted to the system unit 31 and is also transmitted to the MPEG decoder 231 which is one of the configurations of the first output unit 212 described later. When data related to a TV program received by the TV tuner 221 is output to the TV receiver 102, the digital signal code-compressed by the MPEG encoder 224 is transmitted to the MPEG decoder 231 via the PCI bus interface 213.

  The first output unit 212 includes an MPEG decoder 231, a video encoder 232, and an audio digital analog converter (DAC) 233. The MPEG decoder 231 generates a digital video signal and a digital audio signal from data that is code-compressed according to the MPEG system. The MPEG decoder 231 is a digital code that is code-compressed in accordance with an MPEG method stored in the HDD 312 in the system unit 31 when data related to a TV broadcast program received by the TV tuner 221 is output to the TV receiver 102. Used when outputting a signal to the TV receiver 102.

  The video encoder 232 converts the digital video signal generated by the MPEG decoder 231 into an analog video signal. The audio DAC 233 converts the digital audio signal generated by the MPEG decoder 231 into an analog audio signal. These analog video signal and analog audio signal are output to the TV receiver 102. As described above, the first input unit 211 constituting the AV unit 21 performs processing of video and audio data input to the wireless AV station 101, and the first output unit 212 constituting the AV unit 21 is Data such as data processed by the first input unit 211 or data stored in the HDD 312 of the system unit 31 is converted into a video and audio data format output from the wireless AV station 101.

  The system unit 31 includes a system control unit 311, an HDD 312, a communication unit 313, and a remote controller 314.

  The system control unit 311 controls the operation of the wireless AV station 101. The system control unit 311 receives a TV / content data viewing request from the remote control unit received by the remote controller 314 and a notebook computer connected to the home wireless or wired local networks 13 and 14 received by the communication unit 313. The operation of the AV unit 21 is controlled in response to a TV / content data viewing request from the type computers 103 and 106 or the desktop type computer 104. In addition, the system control unit 311 monitors the usage status of each of the first input unit 211 and the first output unit 212, and the first input unit 211 or the first output unit 212 that is not used. In order to turn off the power supply, a power control function for controlling power supply on / off of the first input unit 211 and power supply on / off of the first output unit 212 is provided.

  The communication unit 313 is a device for executing the router function described above, and executes data transmission between a local network (wired LAN 13 and wireless LAN 14) in the home and the Internet 12. The communication unit 313 includes an IP masquerade function, a NAT (Network Address Translation) function, a DHCP (Dynamic Host Configuration Protocol) function, and the like. The communication unit 313 includes a WAN port used when connecting to the Internet 12 side, a LAN port used when connecting to the wired LAN 13, and a wireless communication device used when connecting to the wireless LAN 14. The communication unit 313 transmits data between the notebook computers 103 and 106 and the desktop computer 104 via a local network (wired LAN 13 and wireless LAN 14) in the home, and the notebook computers 103 and 106 or desktop computer. Control data transmission between 104 and the Internet 12.

  The communication unit 313 is connected to the system control unit 311 via the bus 10. When the TV / content data viewing request is received from the notebook computer 103 or 106 or the desktop computer 104, the communication unit 313 receives the received TV / A content data viewing request is transmitted to the system control unit 311. Further, the communication unit 313 receives the TV program broadcast data / content data received by the AV unit 21 under the control of the system control unit 311 via the local network via the notebook computers 103 and 106 or the desktop computer 104. The function to transmit to is also provided.

  The remote controller 314 controls communication with the remote control unit 107. The TV program broadcast data / content data viewing request transmitted from the remote control unit 107 is received by the remote controller 314 and transmitted to the system control unit 311 via the path 10.

  The power supply unit 41 is a power supply device that supplies operation power to each module constituting the wireless AV station 101.

  In response to a request from the system control unit 311, the power supply control unit 42 supplies a power supply control signal 42 a to the power supply unit 41 and monitors the operation of the power supply unit 41 by a power supply status signal 42 b transmitted from the power supply unit 41. .

  Next, with reference to FIG. 3, wireless communication performed between the wireless AV station 101 and the notebook computer 103 will be described.

  The wireless AV station 101 performs wireless communication with the notebook computer 103 via the wireless LAN 14. This wireless communication is performed using the first wireless communication channel 14a and the second wireless communication channel 14b.

  For example, the wireless AV station 101 transmits data stored in the HDD 312 to the notebook computer 103 via the communication unit 313 using the first wireless communication channel 14a or the second wireless communication channel 14b, and a TV tuner. The notebook computer 103 uses a wireless communication channel different from the wireless communication channel used to transmit the data related to the TV broadcast program received by the H.221 to the data stored in the HDD 312 to the notebook computer 103. Transmit to.

  The notebook computer 103 is a communication unit for receiving TV broadcast program data transmitted from the wireless AV station 101 through the first wireless communication channel 14a and the second wireless communication channel 14b, content data input from the external device 105, or the like. 401 is used for reception.

  In the notebook computer 103, data received by the communication unit 401 is stored in the HDD 402 as an external storage device or displayed on the display unit 403 under the control of the CPU 400.

  FIG. 4 is a flowchart for explaining data transmission processing performed by the wireless AV station 101.

  The wireless AV station 101 determines the type of data to be transmitted to the notebook computer 103. For example, it is determined whether the transmitted data is data stored in the HDD 402 of the notebook computer 103 or data displayed on the display unit 403 (step S100).

  When the transmitted data is data stored in the HDD 402 of the notebook computer 103 (step S100 Yes), the SSRC (Synchronization Source Identifier) of the header in the data transmitted according to RTP (Real-Time Transport Protocol). Is changed to an ID for recording (stored in the HDD) (step S101).

  On the other hand, when the transmitted data is data displayed on the display unit 403 of the notebook computer 103 (No in step S101), the header SSRC in the data transmitted according to RTP is displayed (to the display unit). The ID is changed to “display” (step S102).

  The wireless AV station 101 transmits data in which the SSRC of the header is appropriately changed to the notebook computer 103 using the first wireless communication channel 14a or the second wireless communication channel 14b.

  FIG. 5 is a flowchart for explaining data reception processing performed by the notebook computer 103.

  The notebook computer 103 receives the data transmitted from the wireless AV station 101 using the first wireless communication channel 14a or the second wireless communication channel 14b by the communication unit 401 (step S110).

  As a result of referring to the SSRC of the header in the data received by the communication unit 401, if the ID means recording (step S111 Yes), the received data is stored in the HDD 402 (step S112).

  On the other hand, as a result of referring to the SSRC of the header in the data received by the communication unit 401, if the ID signifies display (No in step S111), the received data is displayed on the display unit 403 (step S113). .

  As described above, the wireless AV station 101 transfers the data in which the SSRC of the header is appropriately changed to the notebook computer 103 using the first wireless communication channel 14a or the second wireless communication channel 14b. The type computer 103 can store the data in the HDD 402 or display it on the display unit 403 by referring to the SSRC of the header in the received data.

  In addition, the notebook computer 103 receives data in which the SSRC of the header is appropriately changed and is transmitted from the wireless AV station 101 using the first wireless communication channel 14a or the second wireless communication channel 14b. It is possible to connect to the Internet 12 via the communication unit 313 of the wireless AV station 101 by using a wireless communication channel that is not used for data transmission in which the SSRC of the header from the wireless AV station 101 is appropriately changed. .

  That is, the notebook computer 103 receives data related to a TV broadcast program received by the wireless AV station 101 and appropriately changed in the SSRC of the header through, for example, the first wireless communication channel 14a, and the received data is received. While being stored in the HDD 402 or displayed on the display unit 403, it is possible to browse a Web site via the communication unit 313 of the wireless AV station 101 using the second wireless communication channel 14b.

  Further, by providing a plurality of TV tuners 221 which are one configuration of the AV unit 21 of the wireless AV station 101 described with reference to FIG. 2, the wireless AV station 101 has a first configuration with respect to the notebook computer 103. Data related to the first TV program received by the TV tuner is transmitted using the first wireless communication channel 14a, and data related to the second TV program received by the second TV tuner is transmitted to the second wireless communication channel 14b. It is possible to transmit using. The notebook computer 103 that has received the data relating to the first TV program and the data relating to the second TV program stores the data relating to the first TV program in the HDD 402, for example, and displays the data relating to the second TV program. This can be displayed on the part 403.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

The figure which shows the structure of the home network system using the data transmission apparatus which concerns on embodiment of this invention. 1 is a diagram showing a system configuration of a wireless AV station according to a first embodiment of the present invention. The figure which shows the power supply system distribute | arranged in the wireless AV station which concerns on the 1st Embodiment of this invention. The flowchart explaining the data transmission process performed by a wireless AV station. The flowchart explaining the data reception process performed with a notebook computer.

Explanation of symbols

101 ... Wireless AV station,
102 ... TV receiver, 103 ... notebook computer,
104: desktop computer, 105 ... external device,
221 ... TV tuner,

Claims (21)

An input unit for inputting data from the outside;
A storage unit for storing data input via the input unit;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
First wireless communication means for transmitting data obtained by adding the identification information to the data inputted via the input unit by the adding means to the external device;
Second wireless communication means for transmitting data obtained by adding the identification information to the data stored in the storage unit by the adding means to the external device;
A data transmission apparatus comprising: A buffer area for storing data input to the input unit;
The first wireless communication means includes
2. The data transmission apparatus according to claim 1, further comprising wireless communication means for transmitting data obtained by adding the identification information to the data stored in the buffer area by the adding means to the external device. A first input unit to which data is input from the outside;
A second input unit for inputting data from the outside;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
First wireless communication means for transmitting data obtained by adding the additional information to the data input via the first input unit by the adding means to the external device;
Second wireless communication means for transmitting the data added via the second input unit to the external device with data added with the additional information by the adding means;
A data transmission apparatus comprising: An input unit for inputting data from the outside;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
First wireless communication means for transmitting data obtained by adding the identification information to the data inputted via the input unit by the adding means to the external device;
Second wireless communication means for transmitting data transmitted by communication with an external network to the external device;
A data transmission apparatus comprising: The second wireless communication means includes
5. The data transmission apparatus according to claim 4, further comprising wireless communication means for transmitting data transmitted from the external device to the apparatus. A TV tuner to which TV data is input;
A storage unit for storing the TV data input via the TV tuner;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
A first wireless communication channel used for transmitting the data added with the identification information by the adding means to the TV data input via the TV tuner, to the external device;
A second wireless communication channel used for transmitting data obtained by adding the identification information to the TV data stored in the storage unit by the adding means to the external device;
A data transmission apparatus comprising: A first TV tuner to which first TV data is input;
A second TV tuner into which second TV-related data is input;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
A first wireless communication channel used for transmitting data obtained by adding the identification information to the first TV data input via the first TV tuner by the adding means to the external device;
A second wireless communication channel used for transmitting data obtained by adding the identification information to the second TV data input via the second TV tuner by the adding means to the external device;
A data transmission apparatus comprising: A TV tuner to which TV data is input;
A content data input unit to which content data of the first external device is input;
Adding means for adding identification information representing the processing content in the second external device to data transmitted to the second external device;
A first wireless communication channel used to transmit data obtained by adding the identification information by the adding means to the TV data input via the TV tuner to the second external device;
A second wireless communication channel used for transmitting the content data input via the content data input unit to the second external device with data added with the identification information by the adding means;
A data transmission apparatus comprising: A content data input unit to which content data of the first external device is input;
A storage unit for storing the content data input via the content data input unit;
Adding means for adding identification information representing the processing content in the second external device to data transmitted to the second external device;
A first wireless communication channel used to transmit the content data input via the content data input unit to the second external device with data added with the identification information by the adding means;
A second wireless communication channel used for transmitting data obtained by adding the identification information to the content data stored in the storage unit by the adding means to the second external device;
A data transmission apparatus comprising: A TV tuner to which TV data is input;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
A first wireless communication channel used for transmitting the data added with the identification information by the adding means to the TV data input via the TV tuner, to the external device;
A second wireless communication channel used to transmit data transmitted in communication with an external network to the external device;
A data transmission apparatus comprising: A storage unit;
An adding means for adding identification information representing the processing content in the external device to data transmitted to the external device;
A first wireless communication channel used to transmit the data stored in the storage unit with the identification information added by the adding means to the external device;
A second wireless communication channel used to transmit data transmitted in communication with an external network to the external device;
A data transmission apparatus comprising: A content data input unit to which content data included in the first external device is input;
Adding means for adding identification information representing the processing content in the second external device to data transmitted to the second external device;
A first wireless communication channel used to transmit the content data input via the content data input unit to the second external device with data added with the identification information by the adding means;
A second wireless communication channel used for transmitting data transmitted in communication with an external network to the second external device;
A data transmission apparatus comprising: The second wireless communication channel is
13. The data transmission apparatus according to claim 10, further comprising a wireless communication channel used for transmitting data transmitted from the second external device to the apparatus. First wireless communication means for transmitting data transmitted to and received from an external device;
Second wireless communication means for transmitting data transmitted to and received from the external device;
Receiving means for adding identification information for executing storage processing and receiving data transmitted from the external device via the first wireless communication means or the second wireless communication means; ,
Means for storing the data in a storage unit by referring to the identification information added to the data received by the receiving means;
An information processing apparatus comprising: First wireless communication means for transmitting data transmitted to and received from an external device;
Second wireless communication means for transmitting data transmitted to and received from the external device;
First receiving means for adding first identification information for executing storage processing and receiving first data transmitted from the external device using the first wireless communication means;
Second receiving means for receiving the second data transmitted from the external device using the second wireless communication means and having the second identification information for executing the display process;
Means for storing the first data in a storage unit by referring to first identification information added to the first data received by the first receiving means;
Means for displaying the second data on a display unit by referring to second identification information added to the second data received by the second receiving means;
An information processing apparatus comprising: First wireless communication means for transmitting data transmitted to and received from an external device;
Receiving means for receiving data transmitted from the external device using the first wireless communication means, with identification information for executing storage processing added thereto;
Means for storing the data in a storage unit by referring to identification information added to the data received by the first receiving means;
Second wireless communication means for transmitting data transmitted / received to / from the external device when communicating with an external network via the external device;
An information processing apparatus comprising: First wireless communication means for transmitting data transmitted to and received from an external device;
Receiving means for receiving data transmitted from the external device using the first wireless communication means, with identification information for executing display processing added thereto;
Means for displaying the data on a display unit by referring to identification information added to the data received by the first receiving means;
Second wireless communication means for transmitting data transmitted / received to / from the external device when communicating with an external network via the external device;
An information processing apparatus comprising: In a data transmission method of a data transmission apparatus having a storage unit for storing data input via an input unit,
An additional step of adding identification information representing processing contents in the external device to data transmitted to the external device;
A first data transmission step of transmitting data obtained by adding the identification information in the addition step to the data input via the input unit to the external device;
A second data transmission step of transmitting data obtained by adding the identification information to the data stored in the storage unit by the adding step to the external device;
A data transmission method comprising: In a data transmission method of a data transmission device having a first input unit to which first data is input from the outside and a second input unit to which second data is input from the outside,
An additional step of adding identification information representing processing contents in the external device to data transmitted to the external device;
A first data transmission step of transmitting data obtained by adding the additional information in the addition step to the first data input via the first input unit;
A second data transmission step of transmitting data obtained by adding the additional information in the addition step to the second data input via the second input unit;
A data transmission method comprising: In a data transmission method of a data transmission device having an input unit for inputting data from outside,
An additional step of adding identification information representing processing contents in the external device to data transmitted to the external device;
A first data transmission step of transmitting data obtained by adding the identification information in the addition step to the data input via the input unit to the external device;
A second data transmission step of transmitting data transmitted by communication with an external network to the external device;
A data transmission method comprising: The second data transmission step includes:
21. The data transmission method according to claim 20, further comprising a data transmission step of transmitting data transmitted from the external device to the apparatus.

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