WO2014038170A1 - 端末装置及び制御方法 - Google Patents
端末装置及び制御方法 Download PDFInfo
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- WO2014038170A1 WO2014038170A1 PCT/JP2013/005159 JP2013005159W WO2014038170A1 WO 2014038170 A1 WO2014038170 A1 WO 2014038170A1 JP 2013005159 W JP2013005159 W JP 2013005159W WO 2014038170 A1 WO2014038170 A1 WO 2014038170A1
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- terminal device
- network
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- power
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/814—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts comprising emergency warnings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
Definitions
- the present invention relates to a technique for forcing a network connection to a terminal device that has a network connection function but is not connected to the network.
- Terminal devices that have a network connection function or the like, can connect to an external server device via a network, and can transmit and receive information to and from the server device have become widespread.
- Such a terminal device is generally a computer system including a processor and a memory.
- the terminal device fulfills its function by the processor operating in accordance with the computer program stored in the memory.
- a problem with the computer program may be discovered.
- the update program is downloaded from the server device, the problem can be solved.
- a new function new computer program
- a new function can be developed after the terminal device is shipped.
- a new function can be added to the terminal device by downloading a new program from the server device.
- the server device can detect the failure of the terminal device early by inspecting the terminal device via the network.
- the terminal device can be connected to the server device via the network, the user can receive various benefits.
- connection to a network may not be normally performed due to disconnection of a communication cable for connecting to a network or inappropriate network settings.
- an error screen related to the network failure is displayed on the display unit. Thereby, the user can know the content of the error.
- the present invention has a function of connecting to a network but has a function of connecting to a network, and a terminal device capable of forcing connection to a network to a terminal device not connected to the network, a control method, and An object is to provide a recording medium.
- one aspect of the present invention is a terminal device having a function of connecting to a network, the connection confirmation unit for confirming whether or not the terminal device is connected to the network, When it is confirmed that the terminal device is not connected to the network, the terminal device includes an invalidating unit that invalidates a function of the terminal device.
- the function of the terminal device is invalidated. For this reason, the user cannot use the function, and the terminal device can strongly appeal to the user that the terminal device is not connected to the network.
- the terminal device In order for the user to use the function of the terminal device, the terminal device must be connected to the network, and as a result, the user can be forced to connect the terminal device to the network. .
- FIG. 1 is a block diagram illustrating a configuration of a television receiver 100.
- FIG. An example of the data structure of the connection destination table 131 is shown.
- 5 is a flowchart showing an operation in the television receiver 100. It is a flowchart which shows the operation
- the warning text 151 displayed on the television receiver 100 of the modification (4) is shown. It is a flowchart which shows the operation
- An example of the data structure of the network connection condition table 161 of the modification (5) is shown. It is a flowchart which shows the operation
- An example of the data structure of the permission information 181 of a modification (7) is shown. It is a flowchart which shows the operation
- An example of the data structure of the permission information 191 of the modification (8) is shown.
- One embodiment of the present invention is a terminal device having a function of connecting to a network, wherein the terminal device is not connected to the network, and connection confirmation means for confirming whether or not the terminal device is connected to the network. And a disabling unit that disables the function of the terminal device when the terminal device is confirmed.
- the function of the terminal device is invalidated. For this reason, the user cannot use the function, and the terminal device can strongly appeal to the user that the terminal device is not connected to the network.
- the terminal device In order for the user to use the function of the terminal device, the terminal device must be connected to the network, and as a result, the user can be forced to connect the terminal device to the network. .
- the invalidation unit may control to stop the supply of power to the terminal device.
- the terminal device when it is confirmed that the terminal device is not connected to the network, the supply of power to the terminal device is stopped. For this reason, the user cannot use the terminal device, and the terminal device can strongly appeal to the user that the terminal device is not connected to the network. In order for a user to use the terminal device, the terminal device must be connected to a network. As a result, the user can be forced to connect the terminal device to the network.
- the terminal device further includes a reception unit that receives a user operation instruction.
- the operation instruction indicates a power-on operation
- the connection confirmation unit immediately after power is supplied to the terminal device. May perform the confirmation.
- the terminal device is a broadcast wave receiving device, and includes a reception unit that receives a broadcast wave, an extraction unit that extracts a program from the broadcast wave, and a reproduction unit that reproduces the extracted program, and the connection During confirmation by the confirmation unit, the reception unit may receive a broadcast wave, the extraction unit may extract a program from the broadcast wave, and the reproduction unit may reproduce the extracted program.
- the user can view the program extracted from the broadcast wave during the time period for confirmation by the connection confirmation means.
- the receiving means receives a broadcast wave including natural disaster information indicating a situation of a natural disaster
- the extracting means extracts the natural disaster information from the broadcast wave and indicates it by the extracted natural disaster information.
- the invalidation unit may invalidate the reproduction unit that reproduces the extracted natural disaster information when a situation to be performed does not satisfy a predetermined condition.
- the invalidating means invalidates the reproducing means, so that adverse effects due to the failure to display the natural disaster information are reduced. can do.
- the terminal device when it is confirmed that the terminal device is not connected to the network, the terminal device further includes a playback unit that plays back a special video or a warning text indicating that the terminal device is not connected to the network,
- the invalidation unit may invalidate the function after the reproduction unit reproduces the special video or the warning text.
- a special video or warning message indicating that the terminal is not connected to the network is played, so the user can connect the terminal device to the network. You can know what is not.
- the terminal device plays back a message asking the user whether or not to perform the setting for connecting the terminal device to the network.
- the terminal device further stores connection information indicating whether or not the terminal device is connected to the network for each of a plurality of network connection confirmations made in the past by the connection confirmation unit.
- the invalidation means invalidates the function when the ratio of the connection information indicating that it is connected among all the connection information does not satisfy a predetermined condition. Also good.
- the function when it is confirmed that the network is not connected, the function is invalidated when the ratio of the connection information indicating the connection in the past is less than the threshold. For this reason, the user cannot use the function, and the terminal device can appeal to the user that the terminal device is not connected to the network.
- the terminal device further includes an acquisition unit that acquires permission information indicating whether to exempt the function invalidation, and when the acquired permission information does not indicate exemption of the function invalidation,
- the invalidating means may invalidate the function.
- the terminal device is a computer system including a memory unit that stores a control program and a processor that executes the control program, and the terminal device further includes an acquisition unit that acquires permission information, a message,
- the permission information includes an update program for updating the control program, and the control program is updated by the update program.
- the revocation unit may invalidate the function.
- the function is It is invalidated. For this reason, the user cannot use the function, and the terminal device can appeal to the user that the terminal device is not connected to the network.
- Another embodiment of the present invention is a control method used in a terminal device having a function of connecting to a network, the step of confirming whether or not the terminal device is connected to the network, and the connection to the network And a disabling step of disabling the function of the terminal device when it is confirmed that the terminal device has not been performed.
- Another embodiment of the present invention is a computer-readable recording medium that records a computer program for control used in a terminal device having a function of connecting to a network, the terminal device being a computer, A connection confirmation step for confirming whether or not the terminal device is connected to the network and a disabling step for disabling the function of the terminal device when it is confirmed that the terminal device is not connected to the network are executed.
- the computer program for recording is recorded.
- this computer program When this computer program is executed in a terminal device that is a computer, when it is confirmed that the terminal device is not connected to the network, the functions of the terminal device are invalidated. For this reason, the user cannot use the function, and the terminal device can strongly appeal to the user that the terminal device is not connected to the network. In order for the user to use the function of the terminal device, the terminal device must be connected to the network, and as a result, the user can be forced to connect the terminal device to the network. .
- Embodiment 1 The terminal device 100a as Embodiment 1 which concerns on this invention is demonstrated.
- the terminal device 100a having a function of connecting to a network includes a connection confirmation unit 109a and an invalidation unit 115a.
- connection confirmation unit 109a confirms whether or not the terminal device 100a is connected to the network.
- the invalidation unit 115a invalidates the function of the terminal device 100a when it is confirmed that the invalidation unit 115a is not connected to the network.
- connection confirmation unit 109a confirms whether or not the terminal device 100a is connected to the network (step S201).
- the disabling unit 115a When it is confirmed that the disabling unit 115a is not connected to the network (“YES” in step S202), the disabling unit 115a disables the function of the terminal device 100a (step S203).
- the invalidation unit 115a may control to stop supplying power to the terminal device 100a when it is confirmed that the invalidation unit 115a is not connected to the network.
- the terminal device 100a may further include a receiving unit that receives a user's operation instruction.
- connection confirmation unit 109a performs the confirmation immediately after power is supplied to the terminal device 100a.
- the terminal device 100a may be a broadcast wave receiving device.
- the terminal device 100a includes a reception unit that receives a broadcast wave, an extraction unit that extracts a program from the broadcast wave, and a reproduction unit that reproduces the extracted program.
- the reception unit receives a broadcast wave
- the extraction unit extracts a program from the broadcast wave
- the reproduction unit reproduces the extracted program.
- the receiving unit may receive a broadcast wave including natural disaster information indicating a situation of a natural disaster.
- the extraction unit extracts the natural disaster information from a broadcast wave.
- the invalidation unit 115a invalidates the reproduction unit that reproduces the extracted natural disaster information.
- the terminal device 100a further includes a playback unit that plays back a special video or a warning text indicating that the terminal device 100a is not connected to the network when it is confirmed that the terminal device 100a is not connected to the network. Also good.
- the invalidation unit 115a invalidates the function after the reproduction unit reproduces the special video or the warning text.
- the terminal device 100a When it is confirmed that the terminal device 100a is not connected to the network, the terminal device 100a reproduces a message that asks the user whether or not to set the terminal device 100a to connect to the network. And a receiving unit that receives a user's operation instruction.
- the invalidation unit 115a invalidates the function when the received operation instruction indicates that the setting for connecting to the network is not performed.
- the terminal device 100a further stores connection information indicating whether or not the terminal device 100a is connected to the network for each of a plurality of network connection confirmations made in the past by the connection confirmation unit 109a. Storage means may be included.
- the invalidation unit 115a invalidates the function when the ratio of the connection information indicating that it is connected among all the connection information does not satisfy a predetermined condition.
- the terminal device 100a may further include an acquisition unit that acquires permission information indicating whether or not the function invalidation is exempted.
- the disabling unit 115a disables the function.
- the terminal device 100a may be a computer system including a memory unit that stores a control program and a processor that executes the control program.
- the terminal device 100a further includes an acquisition unit that acquires permission information, a reproduction unit that reproduces a message, and a reception unit that receives a user's operation instruction.
- the permission information includes an update program for updating the control program, and indicates that the function invalidation is exempted on condition that the control program is updated by the update program.
- the playback unit plays back the message asking the user whether or not to update the control program using an update program.
- the disabling unit 115a disables the function.
- Embodiment 2 The content transmission / reception system 10 as Embodiment 2 which concerns on this invention is demonstrated referring drawings.
- the content transmission / reception system 10 includes a television receiver 100 and a server device 200, as shown in FIG.
- the television receiver 100 and the server device 200 are connected via a network 20 represented by the Internet.
- the server device 200 transmits content including video and audio to the television receiver 100 via the network 20. Further, the server device 200 transmits the control program to the television receiver 100 via the network 20.
- the control program is a computer program that is used in the television receiver 100 and is configured of instructions that instruct operations in the television receiver 100.
- the server device 200 is installed in a service center of a manufacturer that manufactures the television receiver 100.
- a program broadcasting device (not shown) broadcasts content composed of video and audio on a broadcast wave.
- the television receiver 100 is installed in the user's home.
- the television receiver 100 obtains content by receiving the content from the server device 200 via the network 20.
- the content is obtained by receiving the broadcast wave and extracting the content from the broadcast wave.
- the television receiver 100 reproduces the obtained content and outputs it as video and audio.
- the television receiver 100 includes a microprocessor and a memory, and a control program is stored in the memory.
- the television receiver 100 achieves its functions by the microprocessor operating according to the control program stored in the memory.
- the television receiver 100 receives a new control program from the server device 200, adds the received new control program to the memory, and writes it.
- the functions that the television receiver 100 should have at the time of shipment can be minimized.
- the television receiver 100 receives a control program for solving the problem from the server device 200.
- the old control program stored in the memory is replaced by the received control program. For this reason, a control program can be changed via the network 20, and the malfunction of the television receiver 100 can be eliminated.
- the television receiver 100 is connected to the server apparatus 200 via the network 20, functions can be easily added or updated via the network 20. As a result, if it is assumed that the television receiver 100 is connected to the server device 200, the manufacturing method and the maintenance method for the television receiver 100 change greatly.
- the television receiver 100 can connect to the server device 200 and provide data to the server device 200. Further, the server device 200 can provide data to the television receiver 100. Thereby, the convenience for a user can be improved.
- the server device 200 includes a control unit 201, a storage unit 202, and a communication unit 203.
- the server device 200 is a computer system including a microprocessor, a ROM, a RAM, a hard disk device, and the like.
- a control program which is a computer program, is stored in the ROM or the hard disk device.
- the microprocessor operates according to the control program, the control unit 201 and the communication unit 203 of the server device 200 achieve their functions.
- Storage unit 202 stores a control program for update and a control program for addition.
- the control program for update and the control program for addition are computer programs used in the television receiver 100, respectively.
- the update control program is used to update the control program stored in the television receiver 100.
- the additional control program is used to add a new function to the television receiver 100.
- the storage unit 202 stores content composed of video and audio.
- the content is transmitted to the television receiver 100 via the network 20, played back and output on the television receiver 100.
- Control unit 201 The control unit 201 reads a control program or content from the storage unit 202 in response to a request from the television receiver 100. Next, the read control program or content is transmitted to the television receiver 100 via the communication unit 203 and the network 20.
- Communication unit 203 The communication unit 203 transmits and receives data to and from the television receiver 100 via the network 20.
- the television receiver 100 includes a control unit 101, a storage unit 102, a communication unit 103, a broadcast wave reception unit 104, a decoding unit 105, a reproduction unit 106, a display unit 107, an input reception unit 108, and a connection confirmation.
- a unit 109, a power supply unit 110, an update unit 113, and a button operation unit 114 are configured.
- An antenna 112 is connected to the broadcast wave receiving unit 104.
- the input receiving unit 108 receives an operation signal generated by the operation of the remote control 111 by the user.
- the television receiver 100 is a computer system including a microprocessor, a ROM, a RAM, a hard disk device, and the like.
- a control program which is a computer program, is stored in the ROM or the hard disk device.
- the microprocessor operates in accordance with the control program, the control unit 101, the communication unit 103, the broadcast wave reception unit 104, the decoding unit 105, the reproduction unit 106, the input reception unit 108, the connection confirmation unit 109, and the server apparatus 200
- the update unit 113 achieves each function.
- the functional blocks such as the control unit 101, the storage unit 102, the communication unit 103, the broadcast wave reception unit 104, the decoding unit 105, the reproduction unit 106, the connection confirmation unit 109, and the update unit 113 of the television receiver 100 are typical. Is realized as an LSI which is an integrated circuit. Each of these functional blocks may be individually made into one chip, or may be made into one chip so as to include one or more parts or a part of each part.
- the method of circuit integration is not limited to LSI, and implementation using a dedicated circuit or a general-purpose processor is also possible.
- An FPGA Field Programmable Gate Array
- a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.
- Each functional block may be realized by software or a combination of LSI and software.
- the software may be tamper resistant.
- the television receiver 100 is connected to the server device 200 via the network 20, and data is transmitted to and received from the server device 200.
- the data includes content, a control program, data related to a user, control data for controlling the television receiver 100, and the like.
- the button operation unit 114 includes various buttons including a power button. When these buttons are operated by the user, the button operation unit 114 outputs an operation signal corresponding to the button to the input reception unit 108.
- the remote control 111 includes various buttons including a power button. When these buttons are operated by the user, the remote controller 111 outputs an operation signal corresponding to the buttons to the input receiving unit 108.
- the television receiver 100 has two states, a standby mode and a complete power-off mode, when the power is off. In the complete power OFF mode, no power is supplied to any component of the television receiver 100. In the power-off state of the standby mode, power is supplied only to the input receiving unit 108, and power is not supplied to the other components.
- the power unit 110 In the complete power OFF mode, when the user turns on the power using the power button provided in the button operation unit 114, the power unit 110 includes the input receiving unit 108, the control unit 101, the storage unit 102, and the communication. Power is supplied only to the unit 103 and the connection confirmation unit 109.
- the power supply unit 110 In the standby mode, when the user turns on the power using the power button provided on the remote control 111, the power supply unit 110 includes the control unit 101, in addition to the input reception unit 108 to which power has already been supplied. Power is supplied to the storage unit 102, the communication unit 103, and the connection confirmation unit 109.
- the complete power-off mode is set. At this time, the power supply unit 110 stops supplying power to any component of the television receiver 100 under the control of the control unit 101. On the other hand, when the user turns off the power using the power button provided in the remote controller 111, the power is turned off in the standby mode. At this time, the power supply unit 110 supplies power only to the input reception unit 108 and stops supplying power to the other components under the control of the control unit 101.
- connection confirmation unit 109 confirms that the television receiver 100 is connected to the network 20
- the power supply unit 110 is controlled by the control unit 101.
- the power is supplied to the broadcast wave receiving unit 104, the decoding unit 105, the reproduction unit 106, the display unit 107, and the update unit 113.
- the power supply unit 110 invalidates the control unit 101. Under the control of the unit 115, the supply of power to the control unit 101, the input reception unit 108, the communication unit 103, the connection confirmation unit 109, and the storage unit 102 is stopped. That is, the power supply unit 110 forcibly turns off the television receiver 100 under the control of the control unit 101 regardless of the user's operation.
- the storage unit 102 includes a hard disk device, a nonvolatile semiconductor memory, or a hard disk device and a nonvolatile semiconductor memory.
- the storage unit 102 includes a connection destination table 131, content including video and audio, data related to a user, a control program for controlling the operation of the television receiver 100, and control data for controlling the television receiver 100. And other data.
- connection destination table 131 includes a plurality of connection destination information 132, 133, 134,... As shown in FIG.
- Each piece of connection destination information is a URL (Uniform Resource Locator) indicating the position of a Web site placed on the network 20. These pieces of connection destination information are used for confirming whether or not the television receiver 100 is connected to the network 20.
- URL Uniform Resource Locator
- the connection destination information 132 indicates an arrangement position of the server device 200 in the network 20 as an example.
- the connection destination information 133 indicates an arrangement position of the confirmation device in the network 20.
- the confirmation device is used only for confirming whether or not the television receiver 100 is connected to the network 20.
- the connection destination information 134 indicates an arrangement position of another server device in the network 20.
- the other server device is a Web site for a manufacturer that manufactures the television receiver 100 to provide information to the user.
- the input reception unit 108 receives an operation signal for operating the television receiver 100 from the remote control 111 or the button operation unit 114 by a user operation. For example, when the user presses the power ON button of the remote control 111, the input reception unit 108 receives an operation signal indicating “power ON” from the remote control 111 and outputs the received operation signal to the control unit 101. To do.
- Antenna 112 broadcast wave receiving unit 104, decoding unit 105, reproducing unit 106, and display unit 107
- the antenna 112 receives broadcast waves.
- the broadcast wave receiving unit 104 receives a broadcast wave from the antenna 112, selects a broadcast stream from the broadcast wave, and demodulates it.
- the decoding unit 105 receives a broadcast stream from the broadcast wave receiving unit 104.
- a broadcast stream is received from the communication unit 103.
- the received broadcast stream is separated to generate a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal from the digital video signal and the digital audio signal. Also, the playback unit 106 generates an analog video signal from other video, still images, messages, and the like under the control of the control unit 101.
- the display unit 107 includes a liquid crystal display device and a speaker.
- the display unit 107 receives an analog video signal and an analog audio signal from the playback unit 106, displays video, and outputs audio.
- Communication unit 103 The communication unit 103 is connected to the server device 200 via the network 20 and transmits / receives data to / from the server device 200.
- Connection confirmation unit 109 The connection confirmation unit 109 reads one piece of connection destination information from the connection destination table 131 stored in the storage unit 102. Next, a connection to the Web site indicated by the read connection destination information is attempted via the communication unit 103. When a positive response (ACK: Acknowledgment) is received from the website, it is determined that the television receiver 100 is connected to the network 20. If no positive response is received from the Web site for a certain time or longer, for example, 5 seconds or longer, it is determined that the television receiver 100 is not connected to the network 20.
- ACK Acknowledgment
- connection confirmation unit 109 when determining that the television receiver 100 is not connected to the network 20, the connection confirmation unit 109 outputs non-connection information to the control unit 101.
- the non-connection information indicates that the television receiver 100 is not connected to the network 20.
- the connection confirmation unit 109 when determining that the television receiver 100 is connected to the network 20, the connection confirmation unit 109 outputs connection information to the control unit 101.
- the connection information indicates that the television receiver 100 is connected to the network 20.
- the connection confirmation unit 109 may determine whether or not the television receiver 100 is connected to the network 20 as follows.
- connection confirmation unit 109 reads all connection destination information from the connection destination table 131 stored in the storage unit 102. Next, connection to the Web site indicated by each read connection destination information is attempted via the communication unit 103. When a positive response is received from a website indicated by at least one connection destination information among a plurality of connection destination information, it is determined that the television receiver 100 is connected to the network 20. If no positive response is received from the Web site indicated by all the connection destination information for a predetermined time or more, the connection confirmation unit 109 determines that the television receiver 100 is not connected to the network 20.
- Update unit 113 receives an update control program or an addition control program from the server device 200 via the network 20 and the communication unit 103.
- the update unit 113 When the update control program is received, the update unit 113 replaces the original control program stored in the storage unit 102 with the received control program. In addition, when the control program for addition is received, the update unit 113 adds and writes the control program for addition to the storage unit 102.
- Control unit 101 controls the storage unit 102, the communication unit 103, the broadcast wave reception unit 104, the decoding unit 105, the reproduction unit 106, the display unit 107, the input reception unit 108, the connection confirmation unit 109, the power supply unit 110, and the update unit 113.
- the function of the television receiver 100 is realized.
- the control unit 101 includes an invalidation unit 115.
- the control unit 101 receives an operation signal from the remote control 111 via the input reception unit 108. Upon receiving the operation signal, the control unit 101 performs control according to the received operation signal.
- the control unit 101 When receiving an operation signal indicating “power OFF” by the power button provided in the television receiver 100, the control unit 101 supplies power to all the components of the television receiver 100 to the power source unit 110. Control to stop. On the other hand, when receiving an operation signal indicating “power OFF” from the power button provided in the remote controller 111, the control unit 101 causes the power supply unit 110 to perform all other configurations of the television receiver 100 except for the input reception unit 108. The element is controlled to stop supplying power.
- the control unit 101 receives either non-connection information or connection information from the connection confirmation unit 109. Upon receiving the non-connection information, the invalidation unit 115 of the control unit 101 forces the power supply unit 110 to the communication unit 103, the connection confirmation unit 109, the storage unit 102, the control unit 101, and the input reception unit 108. Control to stop the supply of power.
- the control unit 101 when receiving the connection information, supplies power to the power supply unit 110 to the broadcast wave receiving unit 104, the decoding unit 105, the reproducing unit 106, the display unit 107, and the updating unit 113. To control. Further, the control unit 101 causes the broadcast wave receiving unit 104 to select a broadcast stream from the broadcast wave and demodulate it. The control unit 101 causes the decoding unit 105 to separate the broadcast stream and generate a video stream and an audio stream. Further, the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively. The control unit 101 causes the display unit 107 to display the video of the broadcast program and output the audio of the broadcast program.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, and the connection confirmation unit 109 (step S102).
- connection confirmation unit 109 tries to connect to the Web site indicated by the connection destination information stored in the connection destination table 131 of the storage unit 102 via the communication unit 103. Thereby, it is confirmed whether or not the television receiver 100 is connected to the network 20 (step S103).
- the power supply unit 110 controls the broadcast wave receiving unit 104, the decoding unit 105, the reproducing unit 106, the display unit 107, and the updating unit 113 under the control of the control unit 101. Then, electric power is supplied (step S106).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, the connection confirmation unit 109, and the storage under the control of the invalidation unit 115 of the control unit 101.
- the supply of power is forcibly stopped for the unit 102 and the control unit 101.
- the television receiver 100 is set to the complete power OFF mode (step S105). Thereby, the operation of the television receiver 100 is finished.
- the television receiver 100 of the content transmission / reception system 10 determines whether the television receiver 100 is connected to the network 20 immediately after the power is turned on by a user operation. Check. When it is confirmed that the connection is not established, the television receiver 100 is forcibly turned off.
- the user cannot use the television receiver 100 unless the television receiver 100 is connected to the network.
- the television receiver 100 can force the user to connect to the network.
- the television receiver 100 can be forcibly connected to the network for the user, a new function can be added or a problem can be solved. As a result, user convenience can be improved. Furthermore, on the premise of adding functions via a network, the functions (control program) at the time of shipment can be minimized. As a result, the size of the memory for storing the program in the television receiver 100 can be reduced.
- the broadcast wave is not received until the connection state to the network 20 is confirmed.
- the modified example (1) the broadcast wave is received and the broadcast program is reproduced in the time zone in which the connection state to the network 20 is confirmed.
- the modification (1) is different from the above embodiment.
- the power unit 110 supplies power to all the components of the television receiver 100. Supply.
- the standby mode when the user turns on the power using the power button provided on the remote control 111, in addition to the input receiving unit 108 to which power has already been supplied, all the remaining of the television receiver 100 is provided. Power is supplied to the components.
- the connection confirmation unit 109 confirms the connection to the network 20.
- the broadcast wave receiving unit 104 selects and demodulates a broadcast stream from the broadcast wave, and the decoding unit 105 decodes the video stream and the audio stream.
- the playback unit 106 generates analog video signals and audio signals, and the display unit 107 displays the broadcast program video and outputs the broadcast program audio.
- the connection confirmation unit 109 confirms the connection to the network 20. In this case, the broadcast wave receiving unit 104, the decoding unit 105, the reproduction unit 106, and the display unit 107 continue to receive, demodulate, decode, reproduce, display, and output the broadcast wave.
- connection confirmation unit 109 does not confirm the connection to the network 20
- the power supply unit 110 stops supplying power to all the components of the television receiver 100.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to all the components of the television receiver 100 except for the input reception unit 108 (step S102a).
- connection confirmation unit 109 confirms whether the television receiver 100 is connected to the network 20 (step S103).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it during the operation time period in step S103.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S111).
- the broadcast wave receiving unit 104 continues to select and demodulate the broadcast stream from the broadcast wave.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- step S104 the power supply unit 110 compulsorily controls all components of the television receiver 100 under the control of the invalidation unit 115 of the control unit 101. Stop supplying power. In other words, the television receiver 100 is set to the complete power OFF mode (step S105a). Thereby, the operation of the television receiver 100 is finished.
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- the modification (2) when the connection state to the network 20 is not confirmed, a special video is displayed, and then the power of the television receiver 100 is turned off. In this respect, the modification (2) is different from the above embodiment.
- the storage unit 102 further stores special videos such as promotional videos for prompting the user to connect to the network when the television receiver 100 is shipped.
- the power unit 110 includes the input receiving unit 108, the control unit 101, the storage unit 102, and the communication. Power is supplied to the unit 103, the connection confirmation unit 109, the decoding unit 105, the reproduction unit 106, and the display unit 107.
- the standby mode when the user turns on the power using the power button provided on the remote control 111, in addition to the input receiving unit 108 to which power has already been supplied, the control unit 101, the storage unit 102, the communication Power is supplied to the unit 103, the connection confirmation unit 109, the decoding unit 105, the reproduction unit 106, and the display unit 107.
- the decoding unit 105 reads the special video from the storage unit 102 under the control of the control unit 101. Next, the decoding unit 105 decodes the read special video to generate a digital video signal. The playback unit 106 generates an analog video signal from the digital video signal. The display unit 107 displays an image based on an analog video signal.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, the connection confirmation unit 109, the decoding unit 105, the reproduction unit 106, and the display unit 107 (step S102b).
- the connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103).
- the power supply unit 110 supplies power to the broadcast wave receiving unit 104 and the updating unit 113 under the control of the control unit 101 (step S106b).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- the decoding unit 105 reads the special video from the storage unit 102 under the control of the control unit 101 (step S121).
- the decoding unit 105 decodes the read special video to generate a digital video signal.
- the playback unit 106 generates an analog video signal from the digital video signal.
- the display unit 107 displays a video based on the analog video signal (step S122).
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, the control unit 101, the decoding unit 105, the reproduction unit 106, and the like under the control of the invalidation unit 115 of the control unit 101.
- the power supply to the display unit 107 is forcibly stopped. In other words, the television receiver 100 is set to the complete power OFF mode (step S105b). Thereby, the operation of the television receiver 100 is finished.
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- the modification (3) when the connection state to the network 20 is not confirmed, a warning message is displayed, and then the power of the television receiver 100 is turned off. In this respect, the modification (3) is different from the above embodiment.
- the storage unit 102 further stores, as text data, a warning text for warning the user to connect to the network when the television receiver 100 is shipped.
- a warning image representing a warning text for warning to connect to the network may be stored.
- warning text 141 An example of the warning text is shown in FIG.
- the user is informed that the television receiver is not connected to the network and is prompted to connect to the network.
- the power unit 110 In the complete power OFF mode, when the user turns on the power using the power button provided in the button operation unit 114, the power unit 110 includes the input receiving unit 108, the control unit 101, the storage unit 102, and the communication. Power is supplied to the unit 103, the connection confirmation unit 109, the playback unit 106, and the display unit 107.
- the standby mode when the user turns on the power using the power button provided on the remote control 111, in addition to the input receiving unit 108 to which power has already been supplied, the control unit 101, the storage unit 102, the communication Power is supplied to the unit 103, the connection confirmation unit 109, the playback unit 106, and the display unit 107.
- the reproduction unit 106 reads a warning text from the storage unit 102 under the control of the control unit 101. Next, the playback unit 106 generates a digital video signal based on the read warning text. The playback unit 106 generates an analog video signal from the digital video signal. The display unit 107 displays an image based on an analog video signal.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, the connection confirmation unit 109, the reproduction unit 106, and the display unit 107 (step S102c).
- the connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103). If the connection is confirmed (“YES” in step S104), the power supply unit 110 supplies power to the broadcast wave receiving unit 104, the decoding unit 105, and the updating unit 113 under the control of the control unit 101 (step S104). S106c).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream. Next, the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- the playback unit 106 reads a warning text from the storage unit 102 under the control of the control unit 101 (step S121a).
- the reproducing unit 106 generates an analog video signal based on the read warning text.
- the display unit 107 displays a video based on the analog video signal (step S122a).
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, the control unit 101, the reproduction unit 106, and the display unit 107 under the control of the invalidation unit 115 of the control unit 101.
- the supply of power is forcibly stopped.
- the television receiver 100 is set to the complete power OFF mode (step S105c). Thereby, the operation of the television receiver 100 is finished.
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- the modified example (4) when the connection state with respect to the network 20 is not confirmed, a warning text is displayed to prompt the user to set the connection to the network. Thereafter, when the user does not set connection to the network, the television receiver 100 is turned off.
- the modification (4) is different from the above embodiment.
- the storage unit 102 further stores, as text data, a warning text for warning the user to connect to the network when the television receiver 100 is shipped.
- a warning image representing a warning text for warning to connect to the network may be stored.
- the warning message 151 shown in this figure informs the user that the television receiver is not connected to the network and asks the user whether or not to set the connection to the network.
- the power unit 110 In the complete power OFF mode, when the user turns on the power using the power button provided in the button operation unit 114, the power unit 110 includes the input receiving unit 108, the control unit 101, the storage unit 102, and the communication. Power is supplied to the unit 103, the connection confirmation unit 109, the playback unit 106, and the display unit 107.
- the standby mode when the user turns on the power using the power button provided on the remote control 111, in addition to the input receiving unit 108 to which power has already been supplied, the control unit 101, the storage unit 102, the communication Power is supplied to the unit 103, the connection confirmation unit 109, the playback unit 106, and the display unit 107.
- the reproduction unit 106 reads a warning text from the storage unit 102 under the control of the control unit 101. Next, the playback unit 106 generates a digital video signal based on the read warning text. The playback unit 106 generates an analog video signal from the digital video signal. The display unit 107 displays an image based on an analog video signal. The displayed video informs that the television receiver 100 is not connected to the network 20 and asks the user whether or not to set the connection to the network.
- the control unit 101 receives a user operation signal from the input reception unit 108.
- the operation signal indicates that connection setting to the network is performed or that connection setting to the network is not performed.
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit under the control of the control unit 101. 101, the supply of power to the playback unit 106 and the display unit 107 is forcibly stopped.
- the control unit 101 When the received operation signal indicates that connection setting to the network is to be performed, the control unit 101 causes the playback unit 106 and the display unit 107 to display a network connection setting screen. Next, the control unit 101 receives a user operation signal from the input reception unit 108. The operation signal indicates the contents of connection setting to the network.
- control unit 101 causes the connection confirmation unit 109 to confirm the connection state to the network again.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, the connection confirmation unit 109, the reproduction unit 106, and the display unit 107 (step S102c).
- the connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103). If the connection is confirmed (“YES” in step S104), the power supply unit 110 supplies power to the broadcast wave receiving unit 104, the decoding unit 105, and the updating unit 113 under the control of the control unit 101 (step S104). S106c).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream. Next, the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- the playback unit 106 reads a warning text from the storage unit 102 under the control of the control unit 101 (step S121a).
- the reproducing unit 106 generates an analog video signal based on the read warning text.
- the display unit 107 displays a video based on the analog video signal (step S122a).
- the control unit 101 receives, from the input reception unit 108, an operation signal indicating whether or not to set connection to the network by a user's operation of the remote control 111.
- the power supply unit 110 controls the input reception unit 108 under the control of the invalidation unit 115 of the control unit 101.
- the communication unit 103, the connection confirmation unit 109, the storage unit 102, the control unit 101, the reproduction unit 106, and the display unit 107 are forcibly stopped from supplying power.
- the television receiver 100 is set to the complete power OFF mode (step S105c). Thereby, the operation of the television receiver 100 is finished.
- step S123 When receiving an operation signal indicating setting of connection to the network (“Yes” in step S123), the control unit 101 displays a network connection setting screen on the reproduction unit 106 and the display unit 107 (step S123). S124). Next, the control unit 101 accepts network connection settings from the network connection setting screen (step S125). Next, it returns to step S104 and repeats a process.
- connection state with respect to the network 20 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- the modified example (5) the connection status with respect to the past network 20 is confirmed, and it is determined whether or not the connection status satisfies the condition. If the condition is satisfied, broadcast wave reception, playback, and other operations are permitted. When the condition is not satisfied, the television receiver 100 is turned off.
- the modification (5) is different from the above embodiment.
- the television receiver 100 holds connection information indicating whether or not it has been connected to the network in the past. For example, regarding whether or not the network has been connected when the power is turned on in the past five times, “last time: connected, twice before: not connected, three times before: connected, four times before: connected, five times before: not connected” Connection information. As an example, when the condition “forced power-off is not necessary when there is 50% or more network connection information” is defined, according to this connection information, the control unit 101 satisfies the condition. Judge. In other words, it is determined that it is not necessary to turn off the power.
- the storage unit 102 further stores a network connection status table 161 shown as an example in FIG.
- the network connection status table 161 has an area for storing a plurality of connection information.
- Each connection information includes connection time information and connection status information.
- the connection time information indicates a connection time in the past.
- the connection status information indicates the connection status at that time.
- the connection status can be either “connected” indicating that the network 20 is connected or “not connected” indicating that the network 20 is not connected.
- the network connection status table 161 stores connection time information 172 “previous” and connection status information 162 “connection” in association with each other. This indicates that the television receiver 100 was connected to the network 20 in the previous connection confirmation.
- the network connection status table 161 stores connection time information 178 “seven times before” and connection status information 168 “not connected” in association with each other. This indicates that the television receiver 100 was not connected to the network 20 in the connection confirmation seven times before.
- connection confirmation unit 109 confirms that the television receiver 100 is not connected to the network
- the control unit 101 uses the network connection state table to set a condition that the connection state is constant as shown below. It is determined whether or not it is satisfied.
- the control unit 101 stores a threshold value “0.5” in advance.
- the threshold value “0.5” is an example.
- the threshold value may be “0.4”, “0.8”, “0.7”, “0.6”, or the like.
- the control unit 101 calculates the ratio of the connection status information that is “connection” among the connection information included in the network connection status table 161.
- Ratio number of connection status information of “connection” / number of all connection status information
- the control unit 101 When the obtained ratio is equal to or greater than the threshold value 0.5, the control unit 101 permits reception, reproduction, and other operations of the broadcast wave.
- control unit 101 sends the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101 to the power supply unit 110. Control to stop the supply of power. In other words, the television receiver 100 is set to the complete power OFF mode.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, and the connection confirmation unit 109 (step S102).
- the connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103).
- the power supply unit 110 controls the broadcast wave receiving unit 104, the decoding unit 105, the reproducing unit 106, the display unit 107, and the updating unit 113 under the control of the control unit 101.
- electric power is supplied (step S106).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream. Next, the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- control unit 101 calculates the ratio of the connection status information that is “connection” among the connection information included in the network connection status table 161. Thus, the network connection status is confirmed (step S131).
- control unit 101 determines whether the network connection condition satisfies a certain condition. Specifically, it is determined whether or not the ratio obtained by the calculation is a threshold value of 0.5 or more (step S132).
- step S132 If the obtained ratio is equal to or greater than the threshold value 0.5 (“YES” in step S132), the control is transferred to step S106 as satisfying the condition.
- the invalidating unit 115 of the control unit 101 determines that the condition is not satisfied, and the input receiving unit 108
- the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101 are controlled to forcibly stop the supply of power.
- the television receiver 100 is set to the complete power OFF mode (step S105).
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- the modified example (6) for example, natural disaster information is acquired, and it is determined whether the acquired natural disaster information satisfies a certain condition. If the condition is satisfied, broadcast wave reception, playback, and other operations are permitted. When the condition is not satisfied, the television receiver 100 is turned off.
- the modification (6) is different from the above embodiment.
- natural disaster information includes levels.
- an information provision level is merely a level of information provision with a low degree of natural disaster.
- the warning level is a level at which the level of a natural disaster is slightly high and a warning is given to prepare for a natural disaster.
- the recommendation level is a level that recommends evacuation due to the high degree of natural disasters.
- the order level is a level at which the degree of natural disaster is extremely high and orders evacuation.
- a level value is set for each level according to the degree. A larger value is set as the degree of natural disaster is higher.
- the information provision level is level 1
- the warning level is level 2
- the recommendation level is level 3
- the command level is level 4.
- the television receiver 100 stores a threshold value of a natural disaster level.
- the threshold is “2”.
- the power unit 110 supplies power to all the components of the television receiver 100. Supply.
- the standby mode when the user turns on the power using the power button provided on the remote control 111, in addition to the input receiving unit 108 to which power has already been supplied, all the remaining of the television receiver 100 is provided. Power is supplied to the components.
- connection confirmation unit 109 confirms the connection to the network 20. Simultaneously with the confirmation of the connection, the broadcast wave receiving unit 104, the decoding unit 105, the reproduction unit 106, and the display unit 107 receive, demodulate, decode, reproduce, display, and output the broadcast wave.
- connection confirmation unit 109 confirms the connection to the network 20
- the broadcast wave reception unit 104, the decoding unit 105, the reproduction unit 106, and the display unit 107 receive, demodulate, decode, reproduce, display, and display the broadcast wave. Continue output.
- connection confirmation unit 109 does not confirm the connection to the network 20
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave, demodulates it, and acquires natural disaster information from the broadcast stream.
- the connection confirmation unit 109 determines whether the acquired natural disaster information satisfies a certain condition. Specifically, it is determined whether or not the level included in the natural disaster information is smaller than a threshold value.
- the control unit 101 determines that a certain condition is satisfied, and broadcast wave reception, playback, and other operations are allowed continuously.
- the control unit 101 determines that the predetermined condition is not satisfied, and the power supply unit 110 stops supplying power to all the components of the television receiver 100.
- control unit 101 determines that the condition is satisfied. Also good.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to all the components of the television receiver 100 (step S102a).
- connection confirmation unit 109 confirms whether the television receiver 100 is connected to the network 20 (step S103).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it in the same time zone as the operation of step S103.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S111a).
- the broadcast wave receiving unit 104 continues to select and demodulate the broadcast stream from the broadcast wave.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave, demodulates it, and acquires natural disaster information from the broadcast stream (step S131a). .
- the control unit 101 determines whether the acquired natural disaster information satisfies a certain condition (step S132a).
- step S132a When the acquired natural disaster information satisfies a certain condition (“YES” in step S132a), the control is moved to step S107.
- the power supply unit 110 controls all the configurations of the television receiver 100 under the control of the invalidation unit 115 of the control unit 101.
- the power supply is forcibly stopped for the element.
- the television receiver 100 is set to the complete power OFF mode (step S105a). Thereby, the operation of the television receiver 100 is finished.
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- permission information is acquired.
- the permission information is information that permits not to forcibly turn off the power even when the network is not connected. It is determined whether or not the acquired permission information indicates a power off exemption. When the power-off exemption is indicated, broadcast wave reception, playback, and other operations are permitted. If the power off exemption is not indicated, the television receiver 100 is turned off.
- the modification (7) is different from the above embodiment.
- the storage unit 102 stores the public key assigned to the creator of the permission information.
- the storage unit 102 stores permission information 181 as shown as an example in FIG.
- the permission information 181 includes a permission information ID (182), a permission content 183, an expiration date 184, and signature data 185.
- the permission information ID (182) is identification information for uniquely identifying the permission information.
- Permission content 183 indicates content permitted by the permission information.
- the permission content 183 is “exemption from power-off”.
- the expiration date 184 indicates the expiration date of the permission information.
- the signature data 185 is generated by applying the digital signature S to the signature target data using the private key 186 assigned to the creator of the permission information 181.
- the signature target data is a combination obtained by combining the permission information ID (182), the permission content 183, and the expiration date 184 in this order.
- Signature data Sign (private key of permission information creator, permission information ID
- S Sign (A, B) is signature data generated by applying the digital signature Sign to the data B using the private key A.
- the digital signature Sign is, for example, a digital signature algorithm based on ECDSA (Elliptic Curve Digital Signature Standard).
- B is a combination obtained by combining data A and data B in this order.
- the communication unit 103 acquires permission information from the server device 200 or another server device when the television receiver 100 has been connected to the network 20 in the past, and writes the acquired permission information in the storage unit 102.
- the permission information may be acquired by another terminal device such as a smartphone or a PC.
- the television receiver 100 may receive and hold permission information using a wireless technology such as NFC (Near Field Communication) or Bluetooth.
- NFC Near Field Communication
- the server device or the network is down, permission information is issued or permission information can be purchased.
- permission information that can be used after the next time may be downloaded from the server device 200 and stored.
- the control unit 101 reads permission information from the storage unit 102. Next, it is determined whether or not the permission content included in the permission information is “exemption from power-off”.
- the power supply unit 110 forces the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101 to be controlled by the control unit 101. Power supply is stopped.
- the control unit 101 reads the public key from the storage unit 102. Next, digital signature verification V is performed on the permission information ID, permission content, expiration date, and signature data included in the permission information using the read public key.
- the digital signature verification V is, for example, a digital signature verification algorithm based on ECDSA (Elliptic Curve Digital Signature Standard).
- the power supply unit 110 forcibly supplies power to the input reception unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101 under the control of the control unit 101. Stop supplying.
- the control unit 101 acquires the current date and time, and determines whether or not the acquired current date is within the expiration date included in the permission information. When the current date and time is outside the expiration date, the power supply unit 110 forces the input receiving unit 108, the communication unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101 to be controlled by the control unit 101. Stop supplying power.
- the control unit 101 permits the reception, playback, and other operations of the broadcast wave.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, and the connection confirmation unit 109 (step S102).
- connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103).
- the power supply unit 110 controls the broadcast wave receiving unit 104, the decoding unit 105, the reproducing unit 106, the display unit 107, and the updating unit 113 under the control of the control unit 101. Then, electric power is supplied (step S106).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- control unit 101 reads permission information from the storage unit 102 (step S141). Next, the control unit 101 determines whether or not the permission content included in the permission information is “exemption from power-off” (step S142).
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, and the connection confirmation unit 109 under the control of the invalidation unit 115 of the control unit 101.
- the power supply is forcibly stopped for the storage unit 102 and the control unit 101.
- the television receiver 100 is set to the complete power OFF mode (step S105). Thereby, the operation of the television receiver 100 is finished.
- the control unit 101 performs digital signature verification V on the permission information ID, the permission content, the expiration date, and the signature data included in the permission information using the read public key (step S143).
- step S143 If the digital signature verification fails (“failure” in step S143), control is transferred to step S105 and the power supply is forcibly stopped.
- the control unit 101 acquires the current date and time, and determines whether or not the acquired current date is within the expiration date included in the permission information (step S144). If the current date and time is outside the expiration date (“out” in step S144), control is transferred to step S105, and the supply of power is forcibly stopped.
- step S142 When the permission content is “exemption from power off” (“YES” in step S142), the digital signature verification is successful (“success” in step S143), and the current date and time is within the expiration date (in step S144) "Inside"), control is passed to step S106.
- the television receiver 100 when the connection state with respect to the network 20 is not confirmed, the television receiver 100 is immediately turned off.
- permission information is acquired.
- the permission information is information that permits not to forcibly turn off the power even when the network is not connected. It is determined whether or not the acquired permission information indicates a power off exemption. When the power-off exemption is indicated, broadcast wave reception, playback, and other operations are permitted. If the power off exemption is not indicated, the television receiver 100 is turned off.
- the modification (8) is different from the above embodiment.
- the permission information of the modification (8) includes an update program.
- the update program is a program for replacing the control program that the television receiver 100 has.
- the permission information forces the television receiver 100 to update the control program that the television receiver 100 has.
- the modification (8) is different from the modification (7).
- the storage unit 102 stores the public key assigned to the creator of the permission information.
- the storage unit 102 stores permission information 191 as shown in FIG. 17 as an example.
- the permission information 191 includes a permission information ID (192), a permission content 193, an expiration date 194, an update program 195, and signature data 196.
- the permission information ID (192) is identification information for uniquely identifying the permission information.
- Permission content 193 indicates content permitted by the permission information.
- the permission content 193 is “exemption from power-off after updating”.
- the expiration date 194 indicates the expiration date of the permission information.
- the update program 195 is a program for updating the control program of the television receiver 100.
- the signature data 196 is generated by applying the digital signature S to the data to be signed using the private key 197 assigned to the creator of the permission information 191.
- the signature target data is a combination obtained by combining the permission information ID (192), the permission content 193, the expiration date 194, and the update program 195 in this order.
- Signature data Sign (private key of permission information creator, permission information ID
- the control unit 101 updates the control program using the update program.
- a screen for asking the user whether or not it is generated is displayed on the display unit 107 via the playback unit 106.
- the power source unit 110 controls the input receiving unit 108 and the communication under the control of the control unit 101.
- the power supply is forcibly stopped with respect to the unit 103, the connection confirmation unit 109, the storage unit 102, and the control unit 101.
- the television receiver 100 is set to the complete power OFF mode.
- control unit 101 When the control unit 101 receives an instruction to update the control program via the input reception unit 108 by operating the remote controller 111, the control unit 101 uses the update program 195 included in the permission information 191. Thus, updating is performed by replacing the control program stored in the storage unit 102. Next, when the update of the control program is completed, the control unit 101 permits reception and reproduction of broadcast waves and other operations.
- the input receiving unit 108 receives an operation signal indicating “power ON” from the remote controller 111 (step S101).
- the power supply unit 110 supplies power to the control unit 101, the storage unit 102, the communication unit 103, and the connection confirmation unit 109 (step S102).
- connection confirmation unit 109 confirms whether or not the television receiver 100 is connected to the network 20 (step S103).
- the power supply unit 110 controls the broadcast wave receiving unit 104, the decoding unit 105, the reproducing unit 106, the display unit 107, and the updating unit 113 under the control of the control unit 101. Then, power is supplied (step S106).
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S107).
- control unit 101 reads permission information from the storage unit 102 (step S141). Next, the control unit 101 determines whether or not the permission content included in the permission information is “exemption from power-off after update” (step S142).
- the power supply unit 110 controls the input reception unit 108, the communication unit 103, and the connection under the control of the invalidation unit 115 of the control unit 101.
- the supply of power is forcibly stopped for the confirmation unit 109, the storage unit 102, and the control unit 101.
- the television receiver 100 is set to the complete power OFF mode (step S105). Thereby, the operation of the television receiver 100 is finished.
- the control unit 101 performs digital signature verification V on the permission information ID, permission content, expiration date, update program, and signature data included in the permission information using the read public key (step S143).
- step S143 If the digital signature verification fails (“failure” in step S143), control is transferred to step S105 and the power supply is forcibly stopped.
- the control unit 101 acquires the current date and time, and determines whether or not the acquired current date is within the expiration date included in the permission information (step S144). If the current date and time is outside the expiration date (“out” in step S144), control is transferred to step S105, and the supply of power is forcibly stopped.
- step S142 When the permission content is “exemption from power off after update” (“YES” in step S142), digital signature verification is successful (“success” in step S143), and the current date and time is within the expiration date ( In step S144, “inside”), the control unit 101 asks the user whether or not to update the control program (step S145). When an instruction not to update is received from the user (“NO” in step S145), control is transferred to step S105, and the supply of power is forcibly stopped.
- control unit 101 updates the control program stored in the storage unit 102 with the update program (step S146). Next, control is transferred to step S106.
- the special video and the warning text may be stored in the television receiver 100 after the television receiver 100 is shipped. Further, the special video and the warning text stored in the television receiver 100 may be updated after the television receiver 100 is shipped.
- the server device 200 may store special video and warning text.
- the television receiver 100 is connected to the server device 200 via the network 20, acquires the special video and warning text from the server device 200, and stores the acquired special video and warning text. Also, the special video and warning text already stored may be updated with the acquired special video and warning text.
- the program broadcasting device may store special video and warning text.
- the program broadcasting device broadcasts special video and warning text on a broadcast wave.
- the television receiver 100 receives broadcast waves, extracts special video and warning text from the received broadcast waves, and stores the extracted special video and warning text.
- the special video and warning text already stored may be updated with the extracted special video and warning text.
- the image brightness and resolution may be reduced.
- the sound may be output in monaural. In this way, until the connection to the network is confirmed, compared to the original broadcast program received by the broadcast wave receiving unit 104, the quality of the image or sound is reduced, and a low-quality image is displayed, or the low-quality sound is displayed. Audio may be output.
- the warning text 141 shown in FIG. 8 is displayed.
- the configuration is not limited. The following may be used.
- the television receiver 100 After receiving the power ON signal and supplying power to all the components of the television receiver 100, it is confirmed whether or not the television receiver 100 is connected to the network. Until then, broadcast waves are received and played back. Next, it is confirmed whether or not it is connected to the network, and when it is not connected to the network, it may be superimposed on the screen being played, in other words, overlaid and displayed as a warning text. At this time, the warning text may be displayed while being moved on the screen.
- the size of the image being played may be reduced, the reduced image may be displayed, and a warning text may be displayed in an empty space on the screen.
- the television receiver 100 is described as an example, but the present invention is not limited to the television receiver.
- the present invention may be applied to all home appliances (electronic devices and machines used at home) having a network connection function.
- the present invention may be applied to content playback devices and recorders, video equipment such as video cameras, and audio equipment.
- video equipment such as video cameras
- audio equipment such as video cameras
- household appliances such as a rice cooker, a refrigerator, a washing machine, a microwave oven, and an air conditioner.
- information household appliances such as a personal computer, FAX, a mobile telephone, a smart phone, and a tablet.
- the television receiver 100 is not connected to the network, is not connected to the network, and certain conditions are not satisfied, or is connected to the network. However, when the permission is not given, the supply of power to the television receiver 100 is stopped.
- the receiver 100 may include an invalidating unit that validates only a part of the functions of the television receiver 100 and invalidates the remaining functions.
- the television receiver 100 is not connected to the network, is not connected to the network, and certain conditions are not satisfied, or is not connected to the network and is not permitted.
- the function of displaying the video from the external input terminal may be disabled in order to view the program stored in the HDD recorder or the like.
- steps S101, S102a, S111, S103, S104, and S107 are the same as steps S101, S102a, S111, S103, S104, and S107 in FIG.
- step S ⁇ b> 105 a in FIG. 6 when the control unit 101 receives an operation signal for input switching in the television receiver 100 from the input reception unit 108, the control signal is transmitted from the antenna 112. It is determined whether switching to reception of a program is indicated or switching to input of a program from an external input terminal is indicated (step S151). Input switching is an operation for switching whether a program displayed on the display unit 107 is received from the antenna 112 or input from an external input terminal.
- the broadcast wave receiving unit 104 selects a broadcast stream from the broadcast wave and demodulates it.
- the decoding unit 105 separates the broadcast stream and generates a video stream and an audio stream.
- the video stream and the audio stream are decoded to generate a digital video signal and a digital audio signal, respectively.
- the playback unit 106 generates an analog video signal and an analog audio signal.
- the display unit 107 displays the video of the broadcast program and outputs the audio of the broadcast program (step S152).
- the invalidating unit 115 of the control unit 101 discards the operation signal and returns to step S151. Repeat the process. Thereby, the invalidation part 115 invalidates the display function of the program from an external input terminal.
- the control unit provided in the HDD recorder permits playback of the recorded program, but may not permit recording of the program.
- the invalidation unit included in the control unit invalidates the program recording function.
- the control part with which a microwave oven is provided permits operation
- the invalidation unit included in the control unit invalidates the complicated cooking function.
- the air conditioner is not connected to the network, is not connected to the network and certain conditions are not met, or is not connected to the network and is not permitted, the air conditioner Although the control part with which operation is switched between cooling and heating and the operation of the temperature setting function are permitted, the operation of the timer function and the energy saving function may not be permitted. In other words, the invalidation unit included in the control unit invalidates the timer function and the energy saving function.
- one device has a plurality of functions (components), but the present invention is not limited to this.
- a plurality of functions (components) may be divided into a plurality of devices, each of the plurality of devices having a function (component), and similar effects and functions may be realized by a combination of the plurality of devices.
- One embodiment of the present invention is a network connection terminal having a function of connecting to a network.
- the network connection terminal includes a reception unit that receives a user operation instruction, a connection unit that is connected to the network and transmits / receives data, and a connection confirmation that confirms a connection state of whether the connection unit is connected to the network. And a disconnecting means for forcibly turning off the network connection terminal.
- the accepting means accepts a power-on operation, and the connection confirmation means confirms the connection state of the connection means, and when it is confirmed that the connection means is not connected, the disconnection means forcibly turns off the power.
- the network connection terminal may include broadcast receiving means for receiving a broadcast and display means for displaying the received broadcast. Until the connection confirmation means confirms the connection state, the broadcast received by the broadcast reception means is displayed on the display means.
- the network connection terminal may include video storage means for storing video and display means for displaying the stored video.
- the connection confirmation means confirms the connection state of the connection means, and when it is confirmed that the connection means is not connected, the video stored in the video storage means before the power-off means forcibly turns off the power. Is displayed on the display means, and then the cutting means forcibly turns off the power.
- the network connection terminal may include broadcast receiving means for receiving a broadcast.
- the connection confirmation means confirms the connection state of the connection means, and when it is confirmed that the connection means is not connected, the video accumulated in the video accumulation means is displayed on the display means, and then the disconnection means Instead of forcibly turning off the power, the broadcast received by the broadcast receiving means is displayed on the display terminal.
- the network connection terminal may include message holding means for holding a message and display means for displaying the held message.
- connection confirmation means confirms the connection state of the connection means and confirms that the connection means is not connected
- the message held in the message holding means before the power-off means forcibly turns off the power. Is displayed on the display means, and then the cutting means forcibly turns off the power.
- the network connection terminal may include broadcast receiving means for receiving a broadcast.
- the connection confirmation means confirms the connection state of the connection means, and when it is confirmed that the connection means is not connected, the message held in the message holding means is displayed on the display means, and then the disconnection means Instead of forcibly turning off the power, the broadcast received by the broadcast receiving means is displayed on the display terminal.
- the network connection terminal may include history holding means for holding a past network connection history and determination means for determining whether to turn off the power.
- the determining means determines whether or not the history held by the history holding means satisfies a predetermined condition. If it is determined that the history does not satisfy the condition, the disconnecting means forcibly turns off the power.
- the network connection terminal may include permission information holding means for holding permission information and permission information confirmation means for checking the permission information.
- permission information confirmation unit confirms that the permission information does not exist or is not correct, the disconnection unit forcibly turns off the power.
- the network connection terminal may include permission information receiving means for receiving the permission information.
- the permission information receiving unit receives and holds the permission information from another terminal device using wireless communication.
- the network connection terminal may include an information holding unit that acquires and holds information from a broadcast wave or other medium, and a determination unit that determines whether to turn off the power.
- the determination means determines whether or not the information held by the information holding means matches a predetermined condition. If it is determined that the information does not match, the cutting means forcibly turns off the power. .
- connection means instead of the connection means forcibly turning off the power when the connection confirmation means confirms the connection state of the connection means and it is confirmed that the connection means is not connected, Only a part of the functions of the network connection terminal may be enabled to maintain the power-on state.
- the network connection terminal may include state holding means for holding a connection state to the network.
- the connection confirmation means periodically confirms the connection state, holds the confirmed result in the state holding means, and when the accepting means accepts a power-on operation, the connection confirmation means It is determined whether or not it is connected to the network based on the latest connection state held by.
- a part or all of the constituent elements constituting each of the above devices may be constituted by an IC card or a single module that can be attached to and detached from each device.
- the IC card or the module is a computer system including a microprocessor, a ROM, a RAM, and the like.
- the IC card or the module may include a super multifunctional LSI.
- the IC card or the module achieves its function by the microprocessor operating according to the computer program.
- the IC card or the module may have tamper resistance.
- Each device may be a computer system including a microprocessor and a memory.
- the memory stores the computer program, and the microprocessor operates according to the computer program.
- the computer program is configured by combining a plurality of instruction codes indicating instructions to the computer in order to achieve a predetermined function.
- the microprocessor reads each instruction included in the computer program one by one, decodes the read instruction, and operates according to the decoding result.
- the computer program may be recorded on a computer-readable recording medium, for example, a flexible disk, a hard disk, a CD-ROM, an MO, a DVD, a DVD-ROM, a DVD-RAM, a Blu-ray disk, a semiconductor memory, or the like. Good.
- the computer program may be transmitted via an electric communication line, a wireless or wired communication line, a network represented by the Internet, a data broadcast, or the like.
- the program may be executed by another independent computer system by recording the program on the recording medium and transferring the program, or by transferring the program via the network or the like.
- the terminal device according to the present invention has an effect that a user can be forced to connect to a network and has a network connection function.
- a technology for forcing a network connection to a terminal device that is not connected to the network is not connected to the network. Useful.
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Abstract
Description
本発明に係る実施の形態1としての端末装置100aについて説明する。
本発明に係る実施の形態2としてのコンテンツ送受信システム10について、図面を参照しながら説明する。
コンテンツ送受信システム10は、図1に示すように、テレビ受像機100及びサーバ装置200から構成されている。テレビ受像機100とサーバ装置200とは、インターネットを代表とするネットワーク20を介して、接続されている。
サーバ装置200は、図2に示すように、制御部201、記憶部202及び通信部203から構成されている。
記憶部202は、更新用の制御プログラム及び追加用の制御プログラムを記憶している。更新用の制御プログラム及び追加用の制御プログラムは、それぞれ、テレビ受像機100において用いられるコンピュータプログラムである。更新用の制御プログラムは、テレビ受像機100において記憶されている制御プログラムを更新するために用いられる。追加用の制御プログラムは、テレビ受像機100に新たな機能を追加するために用いられる。
制御部201は、テレビ受像機100からの要求により、記憶部202から制御プログラム又はコンテンツを読み出す。次に、読み出した制御プログラム又はコンテンツを通信部203及びネットワーク20を介して、テレビ受像機100に対して、送信する。
通信部203は、ネットワーク20を介して、テレビ受像機100との間でデータの送受信を行う。
テレビ受像機100は、図3に示すように、制御部101、記憶部102、通信部103、放送波受信部104、デコード部105、再生部106、表示部107、入力受信部108、接続確認部109、電源部110、更新部113及びボタン操作部114から構成されている。放送波受信部104には、アンテナ112が接続されている。また、入力受信部108は、利用者によるリモコン111の操作により発生した操作信号を受け付ける。
ボタン操作部114は、電源ボタンを含む各種のボタンを含んでいる。利用者によりこれらのボタンの操作がされると、ボタン操作部114は、当該ボタンに対応する操作信号を入力受信部108に対して、出力する。
テレビ受像機100は、電源OFFの状態において、待機モード及び完全電源OFFモードの二種類の状態を有している。完全電源OFFモードにおいては、テレビ受像機100のどの構成要素にも、電力は供給されない。待機モードの電源OFF状態においては、入力受信部108にのみ、電力が供給され、その他の構成要素には、電力は、供給されない。
記憶部102は、ハードディスクデバイス、不揮発性の半導体メモリ、又は、ハードディスクデバイス及び不揮発性の半導体メモリから構成されている。
入力受信部108は、利用者の操作により、リモコン111又はボタン操作部114から、テレビ受像機100の操作のための操作信号を受信する。例えば、利用者がリモコン111の電源ONボタンを押した場合、入力受信部108は、リモコン111から「電源ON」を示す操作信号を受信し、受信した操作信号を、制御部101に対して出力する。
アンテナ112は、放送波を受信する。
通信部103は、ネットワーク20を介して、サーバ装置200と接続し、サーバ装置200との間で、データの送受信を行う。
接続確認部109は、記憶部102に記憶されている接続先テーブル131から、1個の接続先情報を読み出す。次に、通信部103を介して、読み出した接続先情報により示されるWebサイトに対する接続を試みる。当該Webサイトから肯定的な応答(ACK:Acknowledgement)を受け取ると、テレビ受像機100がネットワーク20に接続されていると判断する。当該Webサイトから、一定時間以上、例えば、5秒以上、肯定的な応答を受け取らない場合には、テレビ受像機100がネットワーク20に接続されていないと判断する。
更新部113は、サーバ装置200から、ネットワーク20及び通信部103を介して、更新用の制御プログラム又は追加用の制御プログラムを受信する。
制御部101は、記憶部102、通信部103、放送波受信部104、デコード部105、再生部106、表示部107、入力受信部108、接続確認部109、電源部110及び更新部113を制御して、テレビ受像機100の機能を実現する。
待機モードにおいて、利用者によるリモコン111の操作で電源をON状態とする場合のテレビ受像機100の動作について、図5に示すフローチャートを用いて説明する。
以上説明したように、コンテンツ送受信システム10のテレビ受像機100は、利用者の操作により、電源が投入された直後に、テレビ受像機100がネットワーク20に接続されているか否かを確認する。接続がされていないことを確認した場合、テレビ受像機100の電源を強制的に切断する。
なお、本発明を上記実施の形態に基づいて説明しているが、上記実施の形態には限定されない。以下に示すように構成してもよい。
上記実施の形態の変形例(1)としてのテレビ受像機100について説明する。
接続確認部109により、ネットワーク20に対する接続が確認された場合には、放送波受信部104、デコード部105、再生部106及び表示部107は、放送波の受信、復調、復号、再生、表示及び出力を継続する。
上記実施の形態の変形例(2)としてのテレビ受像機100について説明する。
上記実施の形態の変形例(3)としてのテレビ受像機100について説明する。
上記実施の形態の変形例(4)としてのテレビ受像機100について説明する。
上記実施の形態の変形例(5)としてのテレビ受像機100について説明する。
次に、制御部101は、算出により得られた比率が、閾値0.5以上であるか否かを判断する。
上記実施の形態の変形例(6)としてのテレビ受像機100について説明する。
上記実施の形態の変形例(7)としてのテレビ受像機100について説明する。
ここで、S=Sign(A、B)は、私有鍵Aを用いて、データBに対して、デジタル署名Signを施して生成した署名データである。ここで、デジタル署名Signは、一例として、ECDSA(Elliptic Curve Digital Signature Standard)によるデジタル署名アルゴリズムである。また、A||Bは、データAとデータBとをこの順序で結合して得られた結合体である。
上記実施の形態の変形例(8)としてのテレビ受像機100について説明する。
許可内容が「更新後、電源オフの免除」であり、デジタル署名検証に成功し、かつ、現在日時が有効期限内である場合、制御部101は、更新プログラムを用いて、制御プログラムを更新するか否かを利用者に問うための画面を生成し、再生部106を介して、表示部107に表示させる。
(1)上記の変形例(2)において、テレビ受像機100は、その出荷時に、予め特殊映像を記憶している。また、上記の変形例(3)及び(4)において、テレビ受像機100は、その出荷時に、予め警告文を記憶している。
(10)上記実施の形態及び上記変形例をそれぞれ組み合わせるとしてもよい。
20 ネットワーク
100 テレビ受像機
101 制御部
102 記憶部
103 通信部
104 放送波受信部
105 デコード部
106 再生部
107 表示部
108 入力受信部
109 接続確認部
110 電源部
111 リモコン
112 アンテナ
113 更新部
114 ボタン操作部
200 サーバ装置
201 制御部
202 記憶部
203 通信部
Claims (12)
- ネットワークへの接続機能を有する端末装置であって、
当該端末装置がネットワークに接続しているか否かを確認する接続確認手段と、
ネットワークに接続されていないことが確認された場合に、当該端末装置が有する機能を無効化する無効化手段と
を備えることを特徴とする端末装置。 - 前記無効化手段は、ネットワークに接続されていないことが確認された場合に、当該端末装置に対する電力の供給を停止するよう制御する
ことを特徴とする請求項1に記載の端末装置。 - 前記端末装置は、さらに、利用者の操作指示を受け付ける受付手段を含み、
前記操作指示が電源オンの操作を示す場合、当該端末装置に電力が供給された直後に、前記接続確認手段は、前記確認を行う
ことを特徴とする請求項2に記載の端末装置。 - 前記端末装置は、放送波受信装置であって、
放送波を受信する受信手段と、
放送波から番組を抽出する抽出手段と、
抽出した番組を再生する再生手段とを含み、
前記接続確認手段による確認の間、前記受信手段により、放送波を受信し、前記抽出手段により、放送波から番組を抽出し、前記再生手段により、抽出した番組を再生する
ことを特徴とする請求項2に記載の端末装置。 - 前記受信手段は、自然災害の状況を示す自然災害情報を含む放送波を受信し、
前記抽出手段は、放送波から前記自然災害情報を抽出し、
抽出された前記自然災害情報により示される状況が予め定められた条件を満たさない場合に、前記無効化手段は、抽出した前記自然災害情報を再生する前記再生手段を無効化する
ことを特徴とする請求項4に記載の端末装置。 - 前記端末装置は、さらに、ネットワークに接続されていないことが確認された場合に、当該端末装置がネットワークに接続されていないことを表す特殊映像又は警告文を再生する再生手段を含み、
前記無効化手段は、前記再生手段により前記特殊映像又は前記警告文が再生された後、前記機能を無効化する
ことを特徴とする請求項2に記載の端末装置。 - 前記端末装置は、さらに、
ネットワークに接続されていないことが確認された場合に、当該端末装置をネットワークに接続するための設定を行うか否かを利用者に問うメッセージを再生する再生手段と、
利用者の操作指示を受け付ける受付手段とを含み、
前記無効化手段は、受け付けた前記操作指示が、ネットワークに接続するための設定を行わないことを示す場合、前記機能を無効化する
ことを特徴とする請求項2に記載の端末装置。 - 前記端末装置は、さらに、
前記接続確認手段により過去になされた複数回のネットワークへの接続確認について、それぞれ、当該端末装置がネットワークに接続されていたか否かを示す接続情報を記憶している記憶手段を含み、
全ての前記接続情報のうち、接続されていたことを示す接続情報の比率が予め定められた条件を満たさない場合に、前記無効化手段は、前記機能を無効化する
ことを特徴とする請求項2に記載の端末装置。 - 前記端末装置は、さらに、機能の無効化を免除するか否かを示す許可情報を取得する取得手段を含み、
取得した前記許可情報が機能の無効化の免除を示さない場合、前記無効化手段は、前記機能を無効化する
ことを特徴とする請求項2に記載の端末装置。 - 前記端末装置は、制御プログラムを記憶しているメモリ手段と前記制御プログラムを実行するプロセッサとを含むコンピュータシステムであり、
前記端末装置は、さらに、許可情報を取得する取得手段と、
メッセージを再生する再生手段と、
利用者の操作指示を受け付ける受付手段とを含み、
前記許可情報は、前記制御プログラムを更新するための更新プログラムを含み、当該更新プログラムによる前記制御プログラムの更新がされることを条件として、機能の無効化を免除することを示し、
前記再生手段は、ネットワークに接続されていないことが確認された場合に、更新プログラムを用いて前記制御プログラムの更新を行うか否かを利用者に問う前記メッセージを再生し、
取得した前記許可情報が機能の無効化の免除を示し、前記操作指示が前記制御プログラムの更新をしないことを示す場合、前記無効化手段は、前記機能を無効化する
ことを特徴とする請求項2に記載の端末装置。 - ネットワークへの接続機能を有する端末装置において用いられる制御方法であって、
当該端末装置がネットワークに接続しているか否かを確認する接続確認ステップと、
ネットワークに接続されていないことが確認された場合に、当該端末装置が有する機能を無効化する無効化ステップと
を含むことを特徴とする制御方法。 - ネットワークへの接続機能を有する端末装置において用いられる制御用のコンピュータプログラムを記録しているコンピュータ読み取り可能な記録媒体であって、
コンピュータである前記端末装置に、
当該端末装置がネットワークに接続しているか否かを確認する接続確認ステップと、
ネットワークに接続されていないことが確認された場合に、当該端末装置が有する機能を無効化する無効化ステップと
を実行させるためのコンピュータプログラムを記録している記録媒体。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007081669A (ja) * | 2005-09-13 | 2007-03-29 | Funai Electric Co Ltd | ネットワーク家電製品及びテレビジョン受像機 |
JP2010165014A (ja) * | 2009-01-13 | 2010-07-29 | Oki Data Corp | 電子機器装置、電子機器装置システム |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3779696B2 (ja) * | 2003-04-28 | 2006-05-31 | 株式会社東芝 | 電子機器と移動機器とを含むシステム、およびサービス提供方法 |
US20060005219A1 (en) * | 2004-07-02 | 2006-01-05 | Garry Owens | Standby television warning system |
CN100535919C (zh) * | 2004-08-20 | 2009-09-02 | 松下电器产业株式会社 | 内容再现设备和内容再现方法 |
JP2006246395A (ja) * | 2005-03-07 | 2006-09-14 | Fujitsu Ltd | マルチキャストプロキシ装置 |
JP4309451B2 (ja) * | 2007-12-21 | 2009-08-05 | 株式会社東芝 | 情報処理装置 |
JP4739370B2 (ja) | 2007-12-27 | 2011-08-03 | シャープ株式会社 | 情報提供装置、情報表示装置、情報提供システム、制御方法、制御プログラム、および、記録媒体 |
US20100046931A1 (en) | 2008-08-22 | 2010-02-25 | Panasonic Corporation | Recording and playback apparatus |
JP5515919B2 (ja) * | 2010-02-12 | 2014-06-11 | ソニー株式会社 | 電子機器および接続外部機器のデジタルインタフェース判別方法 |
KR20110131909A (ko) * | 2010-06-01 | 2011-12-07 | 삼성전자주식회사 | 터치 단말에서 터치 인터페이스 불량 시 입력 기능 지원 방법 및 장치 |
WO2012070250A1 (ja) * | 2010-11-25 | 2012-05-31 | パナソニック株式会社 | 通信機器 |
CN102170499B (zh) * | 2011-05-24 | 2013-10-02 | 惠州Tcl移动通信有限公司 | 一种移动终端及其电源控制系统 |
CN202385234U (zh) * | 2011-11-10 | 2012-08-15 | 深圳创维数字技术股份有限公司 | 一种机顶盒 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007081669A (ja) * | 2005-09-13 | 2007-03-29 | Funai Electric Co Ltd | ネットワーク家電製品及びテレビジョン受像機 |
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