JP4986040B2 - Content reproduction system, terminal device, and content reproduction method - Google Patents

Description

The present invention relates to a content reproduction system, a end Matusow location Contact and content playback method, in particular, the content reproduction system for performing a process for reproducing the content, to end Matusow location Contact and content reproducing method.

  Along with the recent broadbandization of the Internet, applications such as receiving and viewing video content from the Internet are increasing. Video content received from the Internet is often charged. In the following, paid video content is also referred to as paid content. In general, paid content is provided with a mechanism for preventing unauthorized use. Here, the unauthorized use is, for example, a use in which paid content is copied and played back on a device different from the device that has received the paid content.

Japanese Unexamined Patent Application Publication No. 2004-297550 (Patent Document 1) discloses a technique for preventing unauthorized use of content (hereinafter also referred to as first prior art).
JP 2004-297550 A

  In general, paid contents are provided with date and time conditions such as date and time when distribution or reproduction is permitted. In the following, content provided with date / time conditions is also referred to as content with date / time conditions.

  However, in the first prior art, there is a problem that much time is spent on the user before the content with the date and time condition is reproduced. Here, many troubles include troubles such as connecting to a URL for purchasing a use ticket necessary for reproducing content with a date and time condition and inputting predetermined information.

The present invention was made to solve the above problems, and its object is easily reproducible content reproduction system content date condition is provided, the end Matusow location Contact and content It is to provide a reproduction method.

In order to solve the above-described problem, according to one aspect of the present invention, a content reproduction system includes a terminal device, a reproduction device, a server, and a content distribution device, and reproduces reproduction target content to be reproduced. The server is provided with date / time information transmitting means for transmitting date / time information for correcting the date / time, which is information based on the network time protocol, to the terminal device. A storage unit that receives and stores permission date / time information indicating a reproduction permission date / time at which content reproduction is permitted, a receiving unit that receives date / time information, and a date / time indicated by the date / time information received by the receiving unit. Determination means for determining whether or not the reproduction permission date and time indicated by the permission date and time information and the date and time indicated by the date and time information When the determination unit determines that the reproduction permission date and time indicated by the permission date and time information is later, the generation unit generates reproduction instruction information for reproducing the reproduction target content, and the reproduction instruction information generated by the generation unit And a transmission means for transmitting to the playback device, wherein the playback device receives the playback instruction information, a content storage means for storing the content to be played back, and the reception means receives the playback instruction information, so that the content Playback means for playing back the playback target content stored in the storage means.

Preferably, the end terminal device, in order to determine whether the reproduction permission date after the determination means, the communication means for performing data communication for acquiring the server date and time information, further comprising, generating means, When the determination unit determines that the date and time indicated by the date and time information acquired by the data communication performed by the communication unit is after the reproduction permission date and time, reproduction instruction information is generated .

Preferably, the reproduction target content stored in the content storage means playback apparatus, content distribution apparatus, a content that has been transmitted to the reproducing apparatus.

Preferably, the generation unit generates the reproduction instruction information when the position of the terminal device is within a predetermined range from the position registered in advance.

According to yet another aspect of the invention, the terminal device is a terminal device included in the content playback system.

According to still another aspect of the present invention, the terminal device is a terminal device included in the content reproduction system, and the generation unit reproduces the terminal device when the position of the terminal device is within a predetermined range from the position registered in advance. Generate instruction information.

According to still another aspect of the present invention, a content playback method that includes a terminal device, a playback device, a server, and a content distribution device, and that is executed in a content playback system for playing back playback target content, The server executes a step of transmitting date and time information for correcting the date and time, which is information based on the network time protocol, to the terminal device, and the terminal device is permitted to play back the content to be played back. The date / time indicated by the date / time information received by the step of receiving and storing the date / time information from the content distribution apparatus , the step of receiving the date / time information, and the date / time information received by the receiving step is after the reproduction permission date / time indicated by the date / time information And whether the date and time indicated by the date and time information is the permitted date and time information If it is determined by the step of determining that it is after the reproduction permission date and time shown by the above, a step of generating reproduction instruction information for reproducing the content to be reproduced, and the reproduction instruction information generated by the generating step And the step of storing the reproduction instruction information, the step of storing the reproduction target content, and the step of receiving the reproduction instruction information received by the receiving step. Playing the content to be played back.

According to a further aspect of the present invention, the content playback method, terminal device, by determining, date and time indicated by the date and time information in order to determine whether or not the reproduction permission date and later, the server and the date and time the step of performing the data communication for acquiring the information, further run, resulting step is date and time indicated by the date and time information acquired by the data communication step of performing data communication is performed by, if it is reproduction permission date later, determination If it is more determined in the step of, generating the reproduction instruction information.

The content reproduction system according to the present invention includes a terminal device, a reproduction device, a server, and a content distribution device . The server transmits date and time information for correcting the date and time, which is information based on the network time protocol, to the terminal device. The terminal device determines whether or not the date and time indicated by the received date and time information is after the reproduction permission date and time that the terminal device receives and stores from the content distribution device and the reproduction of the reproduction target content is permitted, When the determination unit determines that the date and time indicated by the date and time information is after the reproduction permission date and time when the reproduction of the reproduction target content is permitted, the reproduction instruction information for reproducing the reproduction target content is generated and transmitted to the reproduction device. Send. The reproduction device reproduces the reproduction target content stored in the reproduction device by receiving the reproduction instruction information.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

In the content reproduction system according to the present invention , the terminal device performs data communication with the server to acquire the date / time information in order to cause the determination unit to determine whether the date / time indicated by the date / time information is after the reproduction permission date / time. deeds, date and time indicated by the acquired date and time information by data communication, when it is determined the determination means that the reproduction permission date and later, that generates the reproduction instruction information for reproducing the reproduction target content.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

  A terminal device according to the present invention is a terminal device included in a content reproduction system. Therefore, the effect which a content reproduction system plays can be acquired. That is, there is an effect that it is possible to easily reproduce the content with the date and time conditions.

The content reproduction method according to the present invention is executed in a content reproduction system including a terminal device, a reproduction device, a server, and a content distribution device . In the content reproduction method, the following processing is performed. The server transmits date / time information for correcting the date / time, which is information based on the network time protocol, to the terminal device. Whether or not the date and time indicated by the date and time information received by the terminal device is after the playback permission date and time permitted to play the content to be played, indicated by the permission date and time information received and stored by the terminal device from the content distribution device Determine. When it is determined that the date and time indicated by the date and time information is after the reproduction permission date and time when the reproduction of the reproduction target content is permitted, the terminal device generates reproduction instruction information for reproducing the reproduction target content, and the reproduction device Send to. The reproduction device reproduces the reproduction target content stored in the reproduction device by receiving the reproduction instruction information.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

The content playback method according to the present invention, the terminal device, whether the time indicated by the date and time information is reproduction permission date and later, in order to determine the determining, data for obtaining the server date and time information Communicate. When the determination step determines that the date and time indicated by the date and time information acquired by data communication is after the reproduction permission date and time, the terminal device generates reproduction instruction information for reproducing the reproduction target content.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  The content handled in the present invention intends digital data such as video, audio, and images and related information related thereto. As a matter of course, the content is not limited to digital data as long as it is handled in the same manner as the above content. In addition, if the content is provided via a network such as a television broadcast, an Internet broadcast, or a mobile phone network, one content can be provided from a plurality of networks.

<First Embodiment>
(System configuration)
FIG. 1 is a diagram illustrating a configuration of a network system 1000 according to the present embodiment. Referring to FIG. 1, network system 1000 includes home networks 501.1, 501.2,. n is included. In the following, home networks 501.1, 501.2,. n (n: natural number) is also collectively referred to as a home network 501.

  Home network 501 is, for example, a network provided in a home. The home is, for example, a user's home, a company, or the like. Home network 501 includes communication terminal device 500, video display device 600, and communication unit 50.

  Communication terminal device 500 is a mobile phone. Communication terminal device 500 is not limited to a mobile phone, and any device (for example, a PDA (Personal Digital Assistance) or a PC (Personal Computer)) that has a communication function and is portable can be used. Good.

  The communication terminal device 500 can perform data communication with the telephone network 60 by radio. The telephone network 60 is a telephone network for mobile phones, for example. Note that when the communication terminal device 500 performs data communication with the telephone network 60, a packet fee corresponding to the amount of data used at the time of data communication is generated.

  The video display device 600 is a television receiver. The video display device 600 is a liquid crystal television as an example of a television receiver. The video display device 600 is not limited to a liquid crystal television, and may be any device that can display an image. Video display device 600 may be, for example, a plasma television. The video display device 600 may be a device that includes a display device for displaying an image and an image data transmission device that transmits image data to be displayed on the display device. The image data transmission device is, for example, a PC, an STB (Set Top Box), an HDD (Hard Disk Drive) recorder, a DVD (Digital Versatile Disc) recorder, or the like. In this case, the connection method between the image data transmission device and the display device is not particularly defined.

  Communication terminal device 500 and video display device 600 perform data communication wirelessly or by wire. That is, a video display system including the communication terminal device 500 and the video display device 600 is configured.

  The communication unit 50 has a function of performing data communication with each of the communication terminal device 500, the video display device 600, and the network 70. The network 70 is an external network such as the Internet.

  The communication unit 50 has a function of performing data communication simultaneously with a plurality of devices by using a wireless technology based on IEEE 802.11g, which is a wireless LAN standard. The wireless technology is not limited to the technology based on IEEE 802.11g, and may be other wireless technology. Therefore, communication unit 50 can perform data communication with each of communication terminal device 500, video display device 600, and network 70 wirelessly.

  The communication unit 50 further has a communication interface using Ethernet (registered trademark). When a device in the home network 501 issues a connection request to the network 70, the address of the device is set in the network 70. It has a router function including a NAT (Network Address Translation) function for converting addresses.

  Therefore, the communication unit 50 can perform data communication with each of the communication terminal device 500, the video display device 600, and the network 70, for example, via a LAN cable. That is, the communication unit 50 can perform data communication with each of the communication terminal device 500, the video display device 600, and the network 70 by wire.

  The network 70 can perform data communication with the telephone network 60 by radio or wire. Therefore, the communication terminal device 500 can perform data communication with the network 70 via the telephone network 60.

  Network system 1000 further includes service server 800A, search server 800S, and Web server 800W.

  The service server 800A is a server that provides content, information related to the content, and the like. The content is, for example, a moving image or music data. For example, when the content is a moving image of a program, the information related to the content is, for example, program information. Service server 800A is a PC. The service server 800A is not limited to a PC, and any device can be used as long as it has a function of providing content such as moving images, content such as music data, information related to the content, and the like. May be.

  The service server 800A records all the programs of all the channels in the period from the current date and time to the date and time before a predetermined period (for example, 24 hours), and stores recorded data obtained by recording the program. Service server 800A automatically deletes recorded data after a predetermined period (for example, 24 hours) from the current date and time. Therefore, the service server 800A stores the recording data of all the programs of all the channels in the period from the current date and time to the date and time before the predetermined period.

  The service server 800A stores video content such as a movie to be distributed in response to a distribution request from the apparatus, separately from the recording data of the broadcast program. If there is a recording data distribution request, the service server 800A transmits or performs streaming distribution of the recording data requested to be distributed to the apparatus that has requested the recording data distribution.

  Further, the service server 800A stores in advance a program currently being broadcast and moving image data scheduled to be broadcast for a predetermined period (for example, 24 hours). If there is a distribution request for moving image data of a program that is currently being broadcast, the distribution-requested moving image data is streamed to the apparatus that has requested the distribution of moving image data.

  When a search server 800S receives a keyword as search information from a terminal device connected to the network 70, the search server 800S searches a URL (Uniform Resource Locator) of a Web page of information related to the received keyword. The search server 800S is a PC. The search server 800S is not limited to a PC, and when receiving a keyword from a terminal device connected to the network 70, the search server 800S searches for a URL (Uniform Resource Locator) of a Web page of information related to the received keyword. Any device having a function may be used.

  Web server 800W is a server that provides data of a plurality of Web pages corresponding to each of a plurality of types of information. Web server 800W provides data of a plurality of Web pages corresponding to information related to a movie, for example. Web server 800W is a PC. Web server 800W is not limited to a PC, and may be any device that has a function of providing data of a plurality of Web pages corresponding to each of a plurality of types of information.

  Each of service server 800A, search server 800S, and Web server 800W performs data communication with network 70 in a wireless or wired manner.

  In the present embodiment, it is assumed that communication unit 50 can perform high-speed data communication with each of communication terminal device 500, video display device 600, and network 70. The communication unit 50 is assumed to be capable of data communication with each of the communication terminal device 500, the video display device 600, and the network 70, for example, at a maximum speed of 100 Mbps (Mega bit per second).

  In addition, it is assumed that the network 70 can perform high-speed data communication with each of the communication unit 50, the telephone network 60, the service server 800A, the search server 800S, and the Web server 800W. It is assumed that the network 70 can perform data communication with each of the communication unit 50, the telephone network 60, the service server 800A, the search server 800S, and the Web server 800W, for example, at a maximum speed of 100 Mbps. Therefore, for example, it is assumed that the maximum speed of data communication between the video display device 600 and the network 70 is 100 Mbps. For example, it is assumed that the maximum speed of data communication between the communication terminal device 500 and the network 70 is 100 Mbps.

  It is assumed that the data communication speed between communication terminal device 500 and telephone network 60 is slower than the data communication speed between communication terminal device 500 and network 70. Assume that the maximum speed of data communication between communication terminal device 500 and telephone network 60 is, for example, 256 kbps.

  Further, it is assumed that the data communication speed between the communication terminal device 500 and the video display device 600 is sufficiently higher than the data communication speed between the communication terminal device 500 and the telephone network 60. It is assumed that the maximum speed of data communication between the communication terminal device 500 and the video display device 600 is 4 Mbps, for example.

(Communication terminal device)
Next, the communication terminal device 500 will be described in detail.

  FIG. 2 is a diagram showing the external appearance of the communication terminal device 500 from the front. Referring to FIG. 2, communication terminal device 500 includes a display unit 530, an audio output unit 570, an LED 576, and an input unit 540.

  The display unit 530 has a function of displaying characters, images, and the like. The display unit 530 is a device using an LCD panel (Liquid Crystal Display Panel). Note that the display unit 530 may be a device using a panel of a display method other than the above.

  The resolution of the display unit 530 is 240 horizontal (dots) × 400 vertical (dots). Note that the resolution of the display unit 530 is not limited to horizontal 240 (dots) × longitudinal 400 (dots), but may be other resolutions.

  The display unit 530 has a touch panel function that allows the user to input information by directly touching the screen. Display unit 530 transmits the position information of the user touching the screen to control unit 510 described later. Control unit 510 performs predetermined processing based on the received position information.

  The voice output unit 570 has a function of outputting the voice of the telephone. Audio output unit 570 includes a speaker that outputs audio. The audio output unit 570 outputs audio based on audio data received from the control unit 510 described later from the speaker.

  The LED 576 performs light notification according to processing performed in the communication terminal device 500. For example, the LED 576 blinks light when an incoming call is received.

  The input unit 540 includes a button group 541. The button group 541 includes direction buttons 541A, 541B, 541C, 541D, and an enter button 541E. The direction buttons 541A, 541B, 541C, and 541D are displayed when the image is displayed on the display unit 530 by a short time (for example, less than 1 second) pressing operation (hereinafter also referred to as a short pressing operation) by the user. This is a button for moving an object to be moved (for example, a cursor) vertically and horizontally.

  Specifically, the direction buttons 541A, 541B, 541C, and 541D in which a short press operation has been performed are buttons for moving the cursor up, down, left, and right, respectively, for example. In addition, the direction buttons 541A, 541B, 541C, and 541D can be operated by pressing the user for a long time (for example, one second or longer) (hereinafter, also referred to as a long press operation), for example, to move the screen up, down, left, or right It is also possible to scroll the screen.

  The determination button 541E is a button for determining an item or the like selected by a short press operation of the direction buttons 541A, 541B, 541C, 541D, for example.

  Input unit 540 further includes function buttons 542A, 542B, 543A, and 543B. Each of the function buttons 542A and 542B is a button for starting a program or the like preset by the user, for example, by a short press operation.

  The function button 543A is a button for making a call. For example, the function button 543A is subjected to a process of making a call to the terminal device of the input telephone number by inputting the telephone number by a short press operation of a numerical button group 546 described later and then pressing the function button 543A. Function button 543A is a button for starting a call by a short press operation when a call is made to communication terminal device 500. The function button 543B is a button for ending the call by a short press operation when the communication terminal device 500 is in a call. The function button 543B is a button for switching the power of the communication terminal device 500 on and off by a user's long-time (for example, 1 second or longer) pressing operation (hereinafter also referred to as a long pressing operation). is there.

  Input unit 540 further includes a number button group 546. The number button group 546 includes 12 number buttons. The number of number buttons included in the number button group 546 is not limited to twelve. Each of the twelve number buttons is a button for inputting numbers, characters, symbols, or the like by a short press operation. The names of the 12 numeric buttons are referred to as 0 button, 1 button, 2 button, 3 button, 4 button, 5 button, 6 button, 7 button, 8 button, 9 button, symbol button 1 and symbol button 2, respectively.

  The input unit 540 transmits a button signal corresponding to a short-pressed or long-pressed button among a plurality of buttons included in the input unit 540 to the control unit 510 described later. That is, the input unit 540 is an interface for the user to operate the communication terminal device 500. Hereinafter, an operation of the input unit 540 or a touch operation on the display unit 530 by the user is also referred to as an interface operation M.

  Communication terminal device 500 further includes a voice input unit 574 and a biological information acquisition unit 577. The voice input unit 574 has a function of inputting voice during a call. The voice input unit 574 includes a microphone for inputting voice. The voice input unit 574 converts voice acquired by the microphone into voice data, and transmits the voice data to the control unit 510 described later in the communication terminal device 500.

  The biological information acquisition unit 577 has a function of acquiring human biological information. In the present embodiment, the biological information is information obtained by converting a fingerprint that is a part of a human body into data. In this case, the biometric information is fingerprint image data, data obtained by extracting a characteristic portion of the fingerprint, or the like. The biometric information is not limited to information obtained by converting fingerprints into data, but may be information obtained by converting veins, retinas, irises, faces, and the like into data. The biometric information may be a voiceprint based on a voice uttered by a human.

  When a part of the human body comes into contact, the biological information acquisition unit 577 transmits the biological information obtained by converting the part of the contacted body into data to the control unit 510 described later.

  The portable terminal device 500 further includes a recording medium insertion unit 550A. The recording medium insertion unit 550 </ b> A is a part for inserting a recording medium, which will be described later, into the mobile terminal device 500.

  FIG. 3 is a diagram showing the appearance of the communication terminal device 500 from the back. With reference to FIG. 3, communication terminal apparatus 500 further includes an audio output unit 572 and an imaging unit 578. The audio output unit 572 has a function of outputting audio corresponding to processing performed by the control unit 510 described later. The sound output unit 572 includes a speaker that outputs sound. The audio output unit 572 outputs audio based on audio data received from the control unit 510 described later from the speaker.

  The imaging unit 578 has a function of performing an imaging process for imaging a subject to be imaged. The imaging unit 578 includes an imaging lens, a light receiving unit, and a color filter unit (not shown). The light receiving unit has a function of converting input light into an electrical signal. The light receiving unit is composed of a plurality of light receiving elements. The light receiving element is an element using, for example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.

  The color filter unit is composed of a plurality of color filters. The color filter is a filter corresponding to each of R, G, and B. The plurality of color filters are provided corresponding to the plurality of light receiving elements, respectively.

  The following processing is performed in the imaging processing. First, the imaging unit 578 inputs light reflected by the subject to be imaged and incident on the imaging lens to the light receiving unit via the color filter unit. The light receiving unit converts the input light into an electrical signal. The imaging unit 578 converts the converted electrical signal into digital data (hereinafter also referred to as captured image data).

  FIG. 4 is a block diagram showing an internal configuration of communication terminal device 500. FIG. 4 also shows a recording medium 555 for explanation. A recording medium 555 stores a program 180 described later. That is, the program 180 is recorded on a medium or the like and distributed as a program product. The recording medium 555 is also distributed as a program product.

  Referring to FIG. 4, communication terminal apparatus 500 further includes a control unit 510, a temporary storage unit 522, and a storage unit 520.

  The storage unit 520 has a function of storing data in a nonvolatile manner. The storage unit 520 is accessed by the control unit 510. The storage unit 520 is a medium (for example, a flash memory) that can hold data in a nonvolatile manner even when power is not supplied. The storage unit 520 stores a program 180, recording data to be described later, various other data, and the like. The program 180 includes a remote control program described later.

  Control unit 510 has a function of performing various types of processing, arithmetic processing, and the like for each unit in communication terminal device 500 in accordance with program 180 stored in storage unit 520. Control unit 510 is a CPU (Central Processing Unit). Control unit 510 is not limited to a CPU, and may be another circuit having an arithmetic function.

  Temporary storage unit 522 is accessed as data by control unit 510 and used as a work memory for temporarily storing data. The temporary storage unit 522 is a DRAM (Dynamic Random Access Memory). Note that the temporary storage unit 522 is not limited to a DRAM, and may be another circuit capable of storing data in a volatile manner.

  Communication terminal device 500 further includes an antenna 502, a tuner 505, and a data processing unit 507.

  The antenna 502 is connected to the tuner 505. The tuner 505 receives a broadcast signal having a frequency instructed by the control unit 510 via the antenna 502. The tuner 505 has a function of receiving broadcast signals based on digital broadcasting and analog broadcasting.

  The broadcast signal includes image data, audio data, text data, and EPG (Electric Program Guide) data. When the broadcast signal is a signal based on digital broadcasting, the broadcast signal further includes BML (Broadcast Markup Language) data and the like. The EPG data is data indicating a plurality of program information. BML data is data for controlling the arrangement position and operation of each of image data, audio data, and text data. The tuner 505 transmits the received broadcast signal to the data processing unit 507.

  The data processing unit 507 demodulates the received broadcast signal to obtain demodulated data. When the received broadcast signal is a signal based on analog broadcast, the data processing unit 507 performs the following processing. First, the data processing unit 507 decodes the demodulated data to obtain image data and audio data, and obtains text data and EPG data from a vertical blanking interval (VBI) of the broadcast signal.

  When the data processing unit 507 receives a display instruction for causing the display unit 530 to display an image from the control unit 510, the data processing unit 507 transmits the image data to a VDP (Video Display Processor) 532 described later. When receiving the image data, the VDP 532 displays an image (moving image or still image) based on the image data on the display unit 530.

  In addition, when the data processing unit 507 receives a recording instruction for performing a recording process from the control unit 510, the data processing unit 507 compresses the image data and the audio data and stores the compressed image data and the audio data in the storage unit 520. The recorded data in this case is also referred to as content below. The recorded data is H.264. The data is compressed in the H.264 format. The recorded data is H.264. The data is not limited to data compressed in the H.264 format, and may be data compressed in another format. Here, the other formats are, for example, MPEG (Moving Picture Experts Group) 1, MPEG2, and the like.

  When the received broadcast signal is a signal based on digital broadcast, the data processing unit 507 performs the following processing. First, the data processing unit 507 decodes the demodulated data based on a digital broadcast protocol to obtain decoded data. The decoded data includes image data, audio data, text data, EPG data, and BML data. The image data and audio data included in the decoded data are H.264 data. The data is compressed in the H.264 format. Note that image data and audio data included in the decoded data are H.264 data. The data is not limited to data compressed in the H.264 format, and may be data compressed in another format. Here, the other formats are, for example, formats such as MPEG1 and MPEG2.

  When the data processing unit 507 receives a display instruction for displaying an image on the display unit 530 from the control unit 510, the data processing unit 507 transmits the image data included in the decoded data of the channel specified by the display instruction to the VDP 532 described later. Send. When receiving the image data, the VDP 532 displays an image (moving image or still image) based on the image data on the display unit 530.

  Further, when receiving a recording instruction for performing a recording process from the control unit 510, the data processing unit 507 stores the decoded data of the channel designated by the recording instruction in the storage unit 520 as the recording data. The recorded data in this case is also referred to as content below. In this case, the recorded data includes image data, audio data, text data, and BML data.

  Communication terminal apparatus 500 further includes VDP 532 and VRAM (Video Random Access Memory) 536.

The VRAM 536 has a function of temporarily storing image data.
Control unit 510 issues a drawing instruction to VDP 532 according to program 180 stored in storage unit 520. The drawing instruction is an instruction for generating an image and causing the display unit 530 to display the image.

  The VDP 532 is connected to the display unit 530. The VDP 532 reads font data, graphic data, and the like from a program 180 (to be described later) in the storage unit 520 in response to a drawing instruction from the control unit 510 and generates an image using the VRAM 536. The VDP 532 reads out the image data stored in the VRAM 536 and causes the display unit 530 to display an image based on the image data.

  Communication terminal device 500 further includes an input unit 540 and a recording medium access unit 550.

  Control unit 510 receives, from input unit 540, a button signal corresponding to a button that has been subjected to a short press operation or a long press operation among the plurality of buttons included in input unit 540. Control unit 510 performs processing according to the received button signal.

  The recording medium access unit 550 can access the recording medium 555 when the recording medium 555 is inserted (attached) to the communication terminal device 500 from the recording medium insertion unit 550A. As a result, the recording medium access unit 550 can read the program 180 from the recording medium 555 on which the program 180 is recorded.

  The program 180 stored in the recording medium 555 is read by the recording medium access unit 550 by the installation process of the control unit 510, and the control unit 510 stores the program 180 in the storage unit 520. The installation processing program is stored in advance in the storage unit 520, and the installation processing is performed by the control unit 510 based on the installation processing program.

  Note that the program 180 may not be installed in the storage unit 520. In this case, control unit 510 reads program 180 stored in recording medium 555 via recording medium access unit 550, and performs predetermined processing based on program 180. The recording medium 555 further records content data and the like. The content data is, for example, music data, moving image data, and the like.

  The recording medium 555 is an SD (Secure Digital (registered trademark)) memory card. The recording medium 555 is not limited to the SD memory card (registered trademark), and may be another medium capable of recording data in a nonvolatile manner.

Communication terminal device 500 further includes a communication unit 560 and a communication unit 562.
Communication unit 560 exchanges data with control unit 510. The communication unit 560 has a function of transmitting and receiving data to and from the video display device 600 in a wired or wireless manner.

  The communication unit 560 has a function of a communication interface that performs serial transfer based on the USB (Universal Serial Bus) 2.0 standard. Note that the standard of the communication interface for performing serial transfer is not limited to USB 2.0, and may be another standard.

  Note that the communication unit 560 may have a function of a communication interface that performs parallel transfer. The communication interface that performs parallel transfer is, for example, an interface that conforms to a Centronics-compliant standard. Further, the communication unit 560 may have a communication interface function based on the IEEE 1394 or SCSI standard.

  Communication unit 560 further has a wireless data communication function. The wireless data communication function has a function of performing data communication wirelessly using Bluetooth (registered trademark). Note that the wireless data communication is not limited to a method using Bluetooth (registered trademark), and may be another communication method using infrared light, for example. Communication unit 560 performs data communication with video display device 600 wirelessly in response to a control instruction from control unit 510.

  Communication unit 562 exchanges data with control unit 510. The communication unit 562 has a function of performing data communication using a wireless technology based on IEEE 802.11g, which is a wireless LAN standard. The wireless technology is not limited to the technology based on IEEE 802.11g, and may be other wireless technology. Therefore, communication unit 562 can perform data communication with communication unit 50 wirelessly.

  The communication unit 562 further has a communication interface function using Ethernet (registered trademark). Therefore, the communication unit 562 can perform data communication with the communication unit 50 via, for example, a LAN cable.

Communication terminal device 500 further includes an antenna 564 and a communication unit 566.
The antenna 564 is connected to the communication unit 566. The communication unit 566 has a function of transmitting and receiving a wireless communication signal using the antenna 564. The communication unit 566 receives a wireless communication signal having a frequency designated by the control unit 510 via the antenna 564. The wireless communication signal is a signal including voice data, character data, image data, and the like.

  Communication unit 566 uses antenna 564 to communicate with the nearest base station (not shown) using a wireless communication signal. The nearest base station can communicate with the telephone network 60. Therefore, the communication unit 566 uses the antenna 564 to communicate with the telephone network 60 via the nearest base station using a wireless communication signal. When receiving the wireless communication signal, the communication unit 566 demodulates the wireless communication signal and transmits data based on the demodulated wireless communication signal to the control unit 510. Further, when transmitting a wireless communication signal, the communication unit 566 receives data (for example, audio data) from the control unit 510 and converts the data into a wireless communication signal based on a predetermined protocol. Communication unit 566 then uses antenna 564 to transmit the converted wireless communication signal to telephone network 60 via the nearest base station (not shown).

  The communication unit 566 can also acquire information indicating the position of the base station (hereinafter also referred to as base station position information) by communicating with the nearest base station. The communication unit 566 transmits the acquired base station position information to the control unit 510 in response to a control instruction from the control unit 510. Control unit 510 can roughly grasp the position of communication terminal apparatus 500 based on the received base station position information.

  The communication unit 566 has a GPS (Global Positioning System) function. The GPS function is a function of communicating with the artificial satellite and acquiring information (hereinafter also referred to as GPS position information) of the position (position based on latitude, longitude, altitude, etc.) of the communication terminal device 500. The communication unit 566 acquires GPS position information in response to a control instruction from the control unit 510 and transmits it to the control unit 510.

  The portable terminal device 500 can also download a program from the network 70 via the telephone network 60 and store the program in the storage unit 520 through the processing of the control unit 510 and the communication unit 566. In this case, the downloaded program is the program 180.

  Control unit 510 performs predetermined processing in accordance with a program (program 180) downloaded from network 70. The download program is stored in advance in the storage unit 520, and the download process is performed by the control unit 510 based on the download program.

  Control unit 510 performs data communication with voice output units 570 and 572 and voice input unit 574 described above.

  When control unit 510 transmits audio data to audio output unit 570, audio output unit 570 outputs audio based on the audio data received from control unit 510 from the speaker. When control unit 510 transmits audio data to audio output unit 572, audio output unit 572 outputs audio based on the audio data received from control unit 510 from the speaker.

  When the user utters voice to the microphone included in the voice input unit 574, the voice input unit 574 converts voice acquired by the microphone into voice data, and transmits the voice data to the control unit 510.

  Control unit 510 performs data communication with each of LED 576, imaging unit 578, and biological information acquisition unit 577 described above. The LED 576 emits light based on a control instruction from the control unit 510.

  The imaging unit 578 performs the above-described imaging processing based on a control instruction from the control unit 510 and transmits captured image data to the control unit 510. Upon receiving the captured image data, control unit 510 stores the captured image data in any of temporary storage unit 522, storage unit 520, and recording medium 555.

  When the biometric information acquisition unit 577 acquires biometric information, the biometric information acquisition unit 577 transmits the acquired biometric information (for example, fingerprint information) to the control unit 510.

  Communication terminal device 500 further includes a vibration unit 579. The vibration unit 579 has a function of vibrating the communication terminal device 500 when the vibration unit 579 itself vibrates based on a control instruction from the control unit 510. The vibration unit 579 vibrates the communication terminal device 500 based on a control instruction from the control unit 510 when, for example, an incoming call or an e-mail is received.

  The communication terminal device 500 further includes an RFID (Radio Frequency Identification) 580. RFID 580 has a function of performing wireless communication with a terminal, an IC (Integrated Circuit) card, or the like based on a control instruction from control unit 510. The RFID 580 is an integrated circuit based on RFID having a security function such as FeliCa (registered trademark).

(Video display device)
Next, the video display device 600 will be described in detail.

  FIG. 5 is a block diagram showing an internal configuration of the video display device 600. FIG. 5 also shows a recording medium 555A for explanation. A recording medium 555A records a program 180A described later. That is, the program 180A is recorded on a medium or the like and distributed as a program product. The recording medium 555A is also distributed as a program product.

  Referring to FIG. 5, video display device 600 includes a display unit 630 and an audio output unit 670. The display unit 630 has a function of displaying characters, images, and the like. The display unit 630 is a device that uses an LCD panel (Liquid Crystal Display Panel). Note that the display unit 530 may be a device using a panel of a display method other than the above.

  The size of the image that can be displayed by the display unit 630 is larger than the size of the image that can be displayed by the display unit 530. Further, the resolution of the display unit 630 is larger than the resolution of the display unit 530. For example, the resolution of the display unit 630 is horizontal 1920 (dots) × vertical 1080 (dots). Note that the resolution of the display unit 630 is not limited to horizontal 1920 (dots) × vertical 1080 (dots), and may be other resolutions.

  The audio output unit 670 is provided outside the video display device 600. The audio output unit 670 has a function of outputting audio corresponding to processing performed by the control unit 610 described later. Audio output unit 670 includes a speaker that outputs audio. The audio output unit 670 outputs audio based on audio data received from the control unit 610 described later from the speaker.

  The video display device 600 further includes a control unit 610, a temporary storage unit 622, and a storage unit 620.

  The storage unit 620 has a function of storing data in a nonvolatile manner. The storage unit 620 is accessed by the control unit 610. The storage unit 620 is a hard disk capable of storing a large amount of data. Note that the storage unit 620 is not limited to a hard disk, and may be any medium (for example, a flash memory) that can hold data in a nonvolatile manner even when power is not supplied. The storage unit 620 stores a program 180A, recording data to be described later, a device ID for identifying the video display device 600, other various data, and the like.

  Control unit 610 has a function of performing various types of processing, arithmetic processing, and the like for each unit in video display device 600 in accordance with program 180A stored in storage unit 620. Since control unit 610 is similar to control unit 510 described above, detailed description will not be repeated.

  The temporary storage unit 622 is used as a work memory that is accessed by the control unit 610 and temporarily stores data. Since temporary storage unit 622 is similar to temporary storage unit 522 described above, detailed description thereof will not be repeated.

  The video display device 600 further includes an antenna 602, a tuner 605, and a data processing unit 607.

  The antenna 602 is connected to the tuner 605. The tuner 605 receives a broadcast signal having a frequency instructed by the control unit 610 via the antenna 602. The tuner 605 has a function of receiving broadcast signals based on digital broadcasting and analog broadcasting.

  The broadcast signal includes image data, audio data, text data, and EPG data. When the broadcast signal is a signal based on digital broadcasting, the broadcast signal further includes the BML data described above. The tuner 605 transmits the received broadcast signal to the data processing unit 607.

  The data processing unit 607 demodulates the received broadcast signal to obtain demodulated data. When the received broadcast signal is a signal based on analog broadcast, the data processing unit 607 performs the following processing. First, the data processing unit 607 decodes the demodulated data, acquires image data and audio data, and acquires text data and EPG data from the vertical blanking interval of the broadcast signal.

  When the data processing unit 607 receives a display instruction for displaying an image on the display unit 630 from the control unit 610, the data processing unit 607 transmits the image data to the VDP 632 described later. When receiving the image data, the VDP 632 displays an image (moving image or still image) based on the image data on the display unit 630.

  In addition, when the data processing unit 607 receives a recording instruction for performing a recording process from the control unit 610, the data processing unit 607 compresses the image data and the audio data, and stores them in the storage unit 620 as recorded data. The recorded data is data compressed in the MPEG2 format. The recorded data is not limited to data compressed in the MPEG2 format, and may be data compressed in another format. Here, the other format is, for example, H.264. H.264 or the like.

  When the received broadcast signal is a signal based on digital broadcast, the data processing unit 607 performs the following processing. First, the data processing unit 607 decodes the demodulated data based on the digital broadcasting standard to obtain decoded data. The decoded data includes image data, audio data, text data, EPG data, and BML data. Image data and audio data included in the decoded data are data compressed in the MPEG2 format. The image data and audio data included in the decoded data are not limited to data compressed in the MPEG2 format, and may be data compressed in other formats. Here, the other format is, for example, H.264. H.264 or the like.

  When the data processing unit 607 receives a display instruction for causing the display unit 630 to display the image data from the control unit 610, the data processing unit 607 converts the image data included in the decoded data of the channel designated by the display instruction into a VDP 632 described later. Send to. When receiving the image data, the VDP 632 displays an image (moving image or still image) based on the image data on the display unit 630.

  Hereinafter, an image based on a broadcast signal received by the tuner 605 and displayed on the display unit 630 is also referred to as a TV image. Note that the number of types of TV image channels that can be directly selected by pressing the numeric buttons “1” to “12” provided on the remote controller 300 to be described later for operating the video display device 600 is as follows. Assume that the maximum is 12. As a matter of course, the more number buttons provided on the remote controller 300, the larger the number of TV image channel types that can be directly selected.

  Remote control channel numbers “1” to “12” are set in the numeric buttons “1” to “12” of the remote control 300, respectively. For example, the remote control channel number “3” is set to the numeric button “3”. One TV image channel can be registered in one remote control channel number. For example, it is assumed that the TV image channel number “8” is registered for the remote control channel number “1”. In this case, the numeric button “1” of the remote controller 300 is pressed by the user, so that a remote control signal for selecting a TV image of the channel number “8” is transmitted from the remote controller 300 to the video display device 600. Sent.

  Note that the video display device 600 has a function of simultaneously displaying a plurality of types of TV images on the display unit 630. In addition, the video display device 600 has a function of simultaneously displaying a TV image and other types of images on the display unit 630.

  In addition, when the data processing unit 607 receives a recording instruction for performing a recording process from the control unit 610, the data processing unit 607 causes the storage unit 620 to store the decoded data of the channel designated by the recording instruction as the recording data. The recorded data in this case is also referred to as content below. In this case, the recorded data includes image data, audio data, text data, and BML data.

The video display device 600 further includes a VDP 632 and a VRAM 636.
The VRAM 636 has a function of temporarily storing image data.

  The control unit 610 issues a drawing instruction to the VDP 632 according to the program 180A stored in the storage unit 620. The drawing instruction is an instruction for generating an image and causing the display unit 630 to display the image.

  The VDP 632 is connected to the display unit 630. In response to a drawing instruction from the control unit 610, the VDP 632 reads font data, graphic data, and the like from a program 180A described later in the storage unit 620, and generates an image using the VRAM 636. The VDP 632 reads out the image data stored in the VRAM 636 and causes the display unit 630 to display an image based on the image data.

  The video display device 600 further includes an input unit 640 and a recording medium access unit 650.

  Input unit 640 includes a plurality of buttons (not shown). The plurality of buttons are provided outside the video display device 600. When any one of the buttons is pressed by the user, the input unit 640 transmits a button signal corresponding to the pressed button to the control unit 610. Control unit 610 performs predetermined processing based on the received button signal. Hereinafter, the button operation of the input unit 640 by the user is also referred to as an interface operation T.

  The recording medium access unit 650 has a function of reading the program 180A from the recording medium 555A on which the program 180A is recorded. The program 180A stored in the recording medium 555A is read by the recording medium access unit 650 by the installation process of the control unit 610, and the control unit 610 stores the program 180A in the storage unit 620. The installation processing program is stored in advance in the storage unit 620, and the installation processing is performed by the control unit 610 based on the installation processing program.

  Note that the program 180A may not be installed in the storage unit 620. In this case, control unit 610 reads program 180A stored in recording medium 555A via recording medium access unit 650, and performs predetermined processing based on program 180A. Content data and the like are also recorded on recording medium 555A. The content data is, for example, music data, moving image data, and the like.

  The recording medium 555A is an SD memory card (registered trademark). The recording medium 555 is not limited to the SD memory card (registered trademark), and other media capable of recording data in a nonvolatile manner, such as Blu-ray Disc (registered trademark), HD-DVD (High-DVD). Definition Digital Versatile Disc (registered trademark), DVD-ROM (Digital Versatile Disk Read Only Memory), CD-ROM (Compact Disk Read Only Memory), and the like.

Video display device 600 further includes a communication unit 660 and a communication unit 662.
Communication unit 660 exchanges data with control unit 610. The communication unit 660 has a function of transmitting / receiving data to / from the communication terminal device 500 in a wired or wireless manner. Communication unit 660 has the same configuration and function as communication unit 560 described above, and therefore detailed description will not be repeated.

  Communication unit 662 transmits / receives data to / from control unit 610. Since communication unit 662 has the same configuration and function as communication unit 562 described above, detailed description will not be repeated. Therefore, communication unit 662 can perform data communication with communication unit 50 wirelessly. Communication unit 662 can perform data communication with communication unit 50 via, for example, a LAN cable.

  Therefore, video display apparatus 600 according to the present embodiment can also download a program from network 70 via communication unit 50 and communication unit 662 and store the program in storage unit 620. In this case, the downloaded program is the program 180A.

  Control unit 610 performs predetermined processing according to a program (program 180A) downloaded from network 70. The download program is stored in advance in the storage unit 620, and the download process is performed by the control unit 610 based on the download program.

  Video display device 600 further includes a remote control signal receiver 680. The remote control signal receiving unit 680 has a function of receiving a remote control signal for operating the video display device 600 output from the remote control (remote controller) 300. Remote control signal receiving unit 680 transmits the received remote control signal to control unit 610. Control unit 610 performs corresponding processing in accordance with the received remote control signal. As described above, the remote controller 300 is provided with numeric buttons “1” to “12” for selecting a TV image. Hereinafter, the operation of the remote controller 300 by the user is also referred to as an interface operation T.

  In addition, it can be assumed that the above-described communication terminal device 500 has the function of the remote controller 300, and there can be assumed a case where there are two communication terminal devices 500 and a remote controller 300 and a case where only one of them exists.

  The control unit 610 performs data communication with the voice output unit 670 described above. When control unit 610 transmits audio data to audio output unit 670, audio output unit 670 outputs audio based on the audio data received from control unit 610 from the speaker.

  The video display device 600 further includes an RFID 690. The RFID 690 has a function of performing wireless communication with a terminal, an IC card, or the like based on a control instruction from the control unit 610. Since RFID 690 is a circuit similar to RFID 580 described above, detailed description will not be repeated.

(Service server, search server and Web server)
FIG. 6 is a block diagram showing the internal configuration of the service server 800A. Referring to FIG. 6, service server 800A includes a display unit 830, a control unit 810, a temporary storage unit 822, and a storage unit 820.

  The display unit 830 has a function of displaying characters, images, and the like. Since display unit 830 is similar to display unit 630 described above, detailed description will not be repeated.

  The storage unit 820 has a function of storing data in a nonvolatile manner. The storage unit 820 is accessed by the control unit 810. The storage unit 820 is a hard disk capable of storing a large amount of data. Note that the storage unit 820 is not limited to a hard disk, and may be any medium (for example, a flash memory) that can hold data in a nonvolatile manner even when power is not supplied. The storage unit 820 stores a program 180B, recording data, content data, various other data, and the like.

  Control unit 810 has a function of performing various types of processing, arithmetic processing, and the like for each unit in service server 800A in accordance with program 180B stored in storage unit 820. Since control unit 810 is similar to control unit 510 described above, detailed description will not be repeated.

  The temporary storage unit 822 is accessed as data by the control unit 810, and is used as a work memory that temporarily stores data. Since temporary storage unit 822 is similar to temporary storage unit 522 described above, detailed description thereof will not be repeated.

Service server 800A further includes a VDP 832 and a VRAM 836.
The VRAM 836 has a function of temporarily storing image data.

  The control unit 810 issues a drawing instruction to the VDP 832 in accordance with the program 180B stored in the storage unit 820. The drawing instruction is an instruction for generating an image and causing the display unit 830 to display the image.

  The VDP 832 is connected to the display unit 830. In response to a drawing instruction from the control unit 810, the VDP 832 reads font data, graphic data, and the like from a program 180B described later in the storage unit 520, and generates an image using the VRAM 836. The VDP 832 reads out the image data stored in the VRAM 836 and causes the display unit 830 to display an image based on the image data.

Service server 800A further includes an input unit 840.
A mouse 842 and a keyboard 844 are connected to the input unit 840. The user uses the mouse 842 or the keyboard 844 to give an instruction to the service server 800A. An input instruction from the mouse 842 or the keyboard 844 is transmitted to the control unit 810 via the input unit 840. Control unit 810 performs predetermined processing based on an input instruction from input unit 840.

The service server 800A further includes a communication unit 860 and a communication unit 862.
The communication unit 860 performs data transmission / reception with the control unit 810. The communication unit 860 has a function of transmitting and receiving data to and from other devices not shown in a wired or wireless manner. Communication unit 860 has the same configuration and function as communication unit 560 described above, and therefore detailed description will not be repeated.

  Communication unit 862 transmits and receives data to and from control unit 810. Since communication unit 862 has the same configuration and function as communication unit 562 described above, detailed description will not be repeated. Accordingly, the communication unit 862 can perform data communication with the network 70 wirelessly. The communication unit 862 can perform data communication with the network 70 via, for example, a LAN cable.

  Each of search server 800S and Web server 800W has the same configuration as that of service server 800A described above, and thus detailed description will not be repeated.

(Remote controller)
Next, processing for using communication terminal device 500 as a remote controller for operating video display device 600 (hereinafter also referred to as a display device remote controller) will be described. When control unit 510 executes a remote control program of program 180 by interface operation M, communication terminal device 500 can be used as a display device remote control. In this case, the following remote control image MG100 is displayed on display unit 530.

  FIG. 7 is a diagram showing a remote control image MG100 as an example. Referring to FIG. 7, button images MBG110, MBG120, and MBG130 are arranged in remote control image MG100.

  Each of the button images MBG110, MBG120, and MBG130 is pressed by the interface operation M, so that the control unit 510 transmits a corresponding remote control signal described later to the video display device 600 using the communication unit 560. It is a button image for doing.

  The button image MBG110 is a button image for transmitting a power supply remote control signal to the video display device 600 by being pressed by the interface operation M. Here, the video display device 600 has a standby mode. The standby mode is a state in which the display unit 630 cannot display an image because the power for displaying an image on the display unit 630 is off, and the main power is not off. That is, the standby mode is a state in which no image is displayed on the display unit 630 and the main power supply is not turned off. Hereinafter, a power source for displaying an image on the display unit 630 is also referred to as an image display power source.

  Therefore, when the video display device 600 is in the standby mode, an image can be displayed on the display unit 630 by receiving the power remote control signal and turning on the image display power. In the following, the video display device 600 in which the image display power is on is also referred to as a normal mode. That is, the power supply remote control signal is a remote control signal for switching between the standby mode and the normal mode in the video display device 600.

  The button image MBG 120 is a button image for transmitting a program guide display remote control signal to the video display device 600 by being pressed by the interface operation M. The program guide display remote control signal is a remote control signal for causing the display unit 630 of the video display device 600 to display a program guide image to be described later.

  The button image MBG 130 is a button image for transmitting a menu display remote control signal to the video display device 600 by being pressed by the interface operation M. The menu display remote control signal is a remote control signal for causing a display unit 630 of the video display device 600 to display a menu image to be described later.

  In remote control image MG100, button images MBG142, MBG144, MBG152, and MBG154 are further arranged. Each of the button images MBG142, MBG144, MBG152, and MBG154 is pressed by the interface operation M, so that the control unit 510 uses a communication unit 560 to transmit a corresponding remote control signal to be described later to the video display device 600. It is a button image for transmitting to.

  The button image MBG 142 is a button image for transmitting a volume up remote control signal to the video display device 600 by being pressed by the interface operation M. The volume up remote control signal is a remote control signal for increasing the sound output from the audio output unit 670 of the video display device 600. The button image MBG 144 is a button image for transmitting a volume down remote control signal to the video display device 600 by being pressed by the interface operation M. The volume down remote control signal is a remote control signal for reducing the sound output from the audio output unit 670 of the video display device 600.

  The button image MBG 152 is a button image for transmitting a channel plus remote control signal to the video display device 600 by being pressed by the interface operation M. The channel plus remote control signal is a remote control signal for incrementing the remote control channel number by 1 when a TV image is displayed on the display unit 630 of the video display device 600. When the remote control channel number is “12” and the above-described process of incrementing by 1 is performed, the remote control channel number is “1”. The channel plus remote control signal may be a remote control signal for incrementing the TV image channel number by one.

  The button image MBG154 is a button image for transmitting a channel minus remote control signal to the video display device 600 by being pressed by the interface operation M. The channel minus remote control signal is a remote control signal for decrementing the remote control channel number by 1 when a TV image is displayed on the display unit 630 of the video display device 600. When the remote control channel number is “1” and the above decrementing process is performed, the remote control channel number is “12”. The channel minus remote control signal may be a remote control signal for decrementing the TV image channel number by one.

  In remote control image MG100, button images MBG170 and MBG180 are further arranged. Each of the button image MBG 170 and the button image MBG 180 is pressed by the interface operation M, so that the control unit 510 transmits a corresponding remote control signal described later to the video display device 600 using the communication unit 560. It is a button image for doing.

  Hereinafter, the operation mode of the communication terminal device 500 when the communication terminal device 500 can operate the video display device 600 by transmitting a remote control signal to the video display device 600 is also referred to as a remote control mode.

  In the remote control mode communication terminal device 500, when any of the 12 numeric buttons included in the numeric button group 546 is pressed for a short time, the control unit 510 transmits a remote control signal corresponding to the pressed numeric button. Output.

(data communication)
Next, processing performed in communication terminal device 500 in remote control mode (hereinafter also referred to as operation determination processing M) and processing performed in video display device 600 when a remote control signal transmitted from communication terminal device 500 is received ( Hereinafter, the control signal handling process T) will be described.

  FIG. 8 is a flowchart of the operation determination process M and the control signal handling process T. Referring to FIG. 8, in operation determination process M performed by communication terminal device 500, first, the process of step S10 is performed.

  In step S10, control unit 510 determines whether or not there is a control operation. Here, the control operation is a touch operation on the display unit 530 or a pressing operation of any of a plurality of external buttons provided outside the communication terminal device 500.

  The plurality of external buttons are twelve numeric buttons included in the direction buttons 541A, 541B, 541C, 541D, the enter button 541E, the function buttons 542A, 542B, 543A, 543B, and the numeric button group 546. If YES in step S10, the process proceeds to step S12. On the other hand, if NO at step S10, the process at step S10 is performed again.

  In step S <b> 12, control unit 510 uses communication unit 560 to transmit a remote control signal corresponding to the control operation as a control signal for operating video display device 600 to video display device 600. When the process of step S12 ends, the process of step S10 is performed again.

  In the control signal corresponding process T performed by the video display device 600, first, the process of step S20 is performed.

  In step S20, control unit 610 determines whether or not a remote control signal as a control signal has been received. If YES in step S20, the process proceeds to step S22. On the other hand, if NO at step S20, the process at step S20 is performed again.

  In step S22, control signal handling processing is performed. In the control signal handling process, control unit 610 performs a process according to the received remote control signal. When the process of step S22 ends, the process of step S20 is performed again.

(Initial setting)
Next, processing for performing initial setting of the video display device 600 will be described. The initial setting of the video display device 600 is, for example, a process (hereinafter, also referred to as an initial setting process T) performed when the power of the video display device 600 is turned on for the first time.

  FIG. 9 is a flowchart of the initial setting process T. FIG. 9 also shows processing performed in each of communication terminal device 500 and service server 800A. In the initial setting process T, first, the process of step S141 is performed.

  In step S141, an initial image display process T is performed. In the initial image display process T, the control unit 610 generates the following initial image G100 using the VDP 632, and causes the display unit 630 to display the initial image G100. And the process of step S141 is complete | finished.

  FIG. 10 is a diagram illustrating an initial image G100 as an example. Referring to FIG. 10, in initial image G100, a message indicating that communication terminal device 500 is close to the data communication unit is displayed. Here, the data communication unit is a communication unit (not shown) provided outside the video display device 600. An RFID 690 is disposed in the vicinity of the data communication unit and inside the video display device 600. That is, the data communication unit is a communication unit that can wirelessly communicate with the communication terminal device 500 using the RFID 690.

Referring to FIG. 9 again, after the process of step S141, the process proceeds to step S142.
In step S142, it is determined whether or not communication terminal device 500 has been detected. Specifically, control unit 610 determines whether or not data communication with communication terminal device 500 is possible using RFID 690. If YES in step S142, the process proceeds to step S143. On the other hand, if NO at step S142, the process at step S142 is performed again.

  Here, when the user of the communication terminal device 500 brings the communication terminal device 500 close to the data communication unit within a predetermined distance from the data communication unit, the control unit 610 uses the RFID 690 to communicate with the communication terminal device 500. Assume that wireless communication is possible. Here, the predetermined distance is, for example, 5 centimeters. In this case, YES is determined in step S142, and the process proceeds to step S143.

  In step S143, control unit 610 transmits the following service use necessary data TD100 to communication terminal apparatus 500 using RFID 690. The service use necessary data TD100 is data necessary for the communication terminal device 500 and the video display device 600 to receive a service from the service server 800A. Note that the information indicated in the service use necessary data TD100 is information stored in the storage unit 620 in advance. And the process of step S143 is complete | finished.

  Note that the transmission method of the service use necessary data TD100 is not limited to the method using the RFID 690. The transmission method of the service use necessity data TD100 may be a transmission method by wireless communication using infrared rays, Bluetooth (registered trademark) or the like, for example. Also, wired communication using LAN, RS232C, USB (Universal Serial Bus), or the like may be used.

  Further, the method of transmitting the service use necessary data TD100 may be a method of displaying a QR (Quick Response) code (registered trademark) indicating the information of the service use necessary data TD100 on the display unit 630. In this case, the communication terminal device 500 captures and analyzes the QR code (matrix-type two-dimensional barcode) (registered trademark) displayed on the display unit 630 with the camera (imaging unit 578) of the communication terminal device 500. As a result, the communication terminal device 500 can acquire the service use necessary data TD100.

  FIG. 11 is a diagram showing service use necessary data TD100 as an example. Referring to FIG. 11, in service use necessity data TD100, “service URL” is a URL of a service site.

  Here, the service site is a Web site that provides a service. The service provided by the service site is, for example, content distribution. The content to be distributed is, for example, moving image data. Here, it is assumed that the service site is a site provided by the service server 800A. Data provided by the service site is stored in the storage unit 820 of the service server 800A.

  In the service use necessary data TD100, the “service ID” is an ID for specifying a service that the video display apparatus 600 enjoys. “Device ID” is information for identifying a device. Here, it is assumed that the device ID “11TA” is the device ID of the video display device 600.

  Referring to FIG. 9 again, communication terminal apparatus 500 performs the process of step S111.

  In step S111, control unit 510 determines whether or not service use necessary data TD100 has been received. If YES in step S111, the process proceeds to step S112. On the other hand, if NO at step S111, the process at step S111 is performed again. Here, assuming that the service use necessary data TD100 is received, the process proceeds to step S112.

  In step S112, position information acquisition processing M is performed. The position information acquisition process M is performed when the position of the communication terminal device 500 is within a predetermined distance from the data communication unit of the video display device 600. Here, the predetermined distance is, for example, 5 centimeters.

  In the position information acquisition process M, the control unit 510 acquires the GPS position information described above from the communication unit 566. Here, the acquired GPS position information indicates the longitude and latitude of the communication terminal device 500. As an example, the longitude and latitude indicated by the GPS position information are 135 degrees 40 minutes east longitude and 34 degrees 25 minutes north latitude, respectively. Then, control unit 510 causes storage unit 520 to store position data based on the acquired GPS position information. And the process of step S112 is complete | finished. Here, it is assumed that the position data stored in the storage unit 520 is the following position data MD100.

  FIG. 12 is a diagram showing position data MD100 as an example. Referring to FIG. 12, in position data MD100, “position” is information indicated by the acquired GPS position information. X and Y of the item “position” indicate the longitude and latitude of the communication terminal device 500, respectively. Therefore, in position data MD100, as an example, it is indicated that the longitude and latitude of communication terminal device 500 are 135 degrees 40 minutes east longitude and 34 degrees 25 minutes north latitude, respectively.

  As described above, the position information acquisition process M is performed when the position of the communication terminal device 500 is within a short distance of 5 centimeters from the data communication unit of the video display device 600. Therefore, the longitude and latitude indicated by the position data MD100 are also the longitude and latitude of the video display device 600, respectively.

Referring to FIG. 9 again, after the process of step S112, the process proceeds to step S113.
In step S113, control unit 510 converts the following service use required data TD110 as service use required data A into service URL “http://www.bb.com/” shown in service use required data TD100 in FIG. Is transmitted to the service server 800A that provides the service site specified by. In addition, control unit 510 causes storage unit 520 to store service use necessary data TD110. And the process of step S113 is complete | finished.

  FIG. 13 is a diagram showing service use necessary data TD110 as an example. Referring to FIG. 13, in service use necessary data TD110, “service ID” is “service ID” shown in service use necessary data TD100 in FIG. 11, and therefore detailed description will not be repeated.

  The “content receiving device ID” is a device ID of a device (video display device 600) that receives full HD video content (hereinafter also referred to as high-resolution content) from the service server 800A. Note that the content received by the video display device 600 from the service server 800A is not limited to content in the full HD format, and may be content of other resolutions as long as it is video content.

  The “data transmission device ID” is a device ID of a device that transmits the service use necessary data TD110. That is, the device ID of the communication terminal device 500 is “09011110000”. The “device model name” is a model name of the communication terminal device 500. “Position” is position information indicated in the position data MD100. That is, the position information indicated in the service use necessity data TD110 indicates the longitude and latitude of the communication terminal device 500 and the video display device 600. That is, the position of the video display device 600 can be determined by using the GPS function mounted on the communication terminal device 500.

  Referring to FIG. 9 again, service server 800A first performs the process of step S181.

  In step S181, control unit 810 determines whether or not service use necessary data TD110 as service use necessary data A has been received. If YES in step S181, the process proceeds to step S182. On the other hand, if NO at step S181, the process at step S181 is performed again. Here, assuming that the service use necessary data TD110 as the service use necessary data A is received, the process proceeds to step S182.

  In step S182, a storage process S is performed. In the storage process S, the control unit 810 causes the storage unit 820 to store the received service use necessary data TD110. Then, the process proceeds to step S183.

  In step S 183, control unit 810 transmits user registration Web data to communication terminal device 500. Here, the Web data for user registration is data for displaying an information registration Web page image, which will be described later, on the display unit 530 of the communication terminal device 500. And the process of step S183 is complete | finished.

In communication terminal device 500, the process proceeds to step S114 after the process of step S113.
In step S114, an information registration image display process M is performed. In the information registration image display process M, when the control unit 510 receives the Web data for user registration, the control unit 510 executes the Web browser program, so that the following Web browser image based on the received Web data for user registration is displayed. The MG 200 is displayed on the display unit 530. Note that the Web browser program is a program included in the program 180 described above. Then, the process of step S114 ends. Note that the program executed when the user registration Web data is received is not limited to the Web browser program, and may be an application utilizing communication means.

  FIG. 14 is a diagram showing a web browser image MG200 as an example. Referring to FIG. 14, URL display image MG210 and information registration Web page image MG220 are arranged in Web browser image MG200.

The URL display image MG210 displays a service URL.
The information registration Web page image MG220 is an image for inputting information for registration in the service site. It should be noted that the items “name”, “user ID”, “mail address T”, “mail address M”, “address”, and “preference keyword” shown in the information registration Web page image MG220 are for explanation. Shows information as an example.

  However, immediately after the Web browser image MG200 is displayed on the display unit 530 by the processing in step S114, “name”, “user ID”, “mail address T”, “mail address M”, “address”, and “ Information is not input in each item of “preference keyword”. Information of each item of “name”, “user ID”, “mail address T”, “mail address M”, “address” and “preference keyword” is input by the interface operation M.

  In the information registration Web page image MG220, the “user ID” is an ID identified in the registered service site. “Mail address T” is a mail address set in the video display device 600 that receives high-resolution content from the service server 800A. “Mail address M” is a mail address set in communication terminal device 500.

  The “preference keyword” is a keyword corresponding to the user's preference. That is, the preference keyword is preference information. It is assumed that the preference keyword can be input arbitrarily. In Web page image MG220, keywords “action”, “comedy”, and “sports” are input as examples of preference keywords. Note that the preference keywords are not limited to three.

  A button image MBG285 is arranged in the information registration Web page image MG220. The button image MBG285 is a button image for performing processing for registering input information in the service site by being pressed.

Referring to FIG. 9 again, after the process of step S114, the process proceeds to step S115.
In step S115, control unit 510 determines whether there is a registration operation M or not. The registration operation M is an interface operation M for pressing the button image MBG285. If YES in step S115, the process proceeds to step S116. On the other hand, if NO at step S115, the process at step S115 is performed again. Here, the registration operation is performed in a state where the information of “name”, “user ID”, “mail address T”, “mail address M”, “address”, and “preference keyword” shown in FIG. 14 is input. If there is M, the process proceeds to step S116.

  In step S116, when registration operation M is performed, control unit 510 transmits information input to information registration Web page image MG220 to service server 800A as user data. Here, it is assumed that the user data transmitted to the service server 800A is the following user data MD200.

  FIG. 15 is a diagram showing user data MD200 as an example. Referring to FIG. 15, since each item shown in user data MD200 has been described above, detailed description will not be repeated.

  Referring to FIG. 9 again, in service server 800A, the process proceeds to step S184 after the process of step S183.

  In step S184, a user data registration process S is performed. In the user data registration process S, when the control unit 810 receives user data, the control unit 810 stores the received user data in the storage unit 820. Here, it is assumed that user data MD200 is received. When the user data is stored in the storage unit 820, the process proceeds to step S185.

In step S185, control unit 810 transmits service usage data to communication terminal apparatus 500 . The service usage data is data for the communication terminal device 500 and the video display device 600 to receive a service from the service server 800A. Here, the service use data includes a content management program and the following service enjoyment data SD300. Then, the process of step S181 is performed again. The content management program is a program for managing content. The content management program is also a remote operation program for remotely operating the service server 800A according to a reservation instruction or the like to be described later.

  FIG. 16 is a diagram showing service enjoyment data SD300 as an example. Referring to FIG. 16, “service use ID” is an ID for using a service provided by service server 800A. Since “User ID” has been described above, detailed description thereof will not be repeated. The “service use password” is a password for allowing the video display device 600 to use the service provided by the service server 800A. “Program name” is the name of the program included in the service usage data. The “post-registration service URL” is a URL that the communication terminal device 500 and the video display device 600 are permitted to access after the user data registration process S in step S184 of FIG. 9 is performed in the service server 800A. .

  Referring to FIG. 9 again, communication terminal apparatus 500 proceeds to step S117 after the process of step S116.

  In step S117, service utilization data reception processing M is performed. In the service use data reception process M, when the control unit 510 receives service use data, the control unit 510 stores the received service use data in the storage unit 520. Here, it is assumed that service usage data including a content management program and service enjoyment data SD300 is received. When the service usage data is stored in the storage unit 520, the process proceeds to step S118.

  In step S118, control unit 510 transmits service enjoyment data SD310 to video display device 600. Then, the process of step S118 ends.

  FIG. 17 is a diagram showing service enjoyment data SD310 as an example. Referring to FIG. 17, service enjoyment data SD310 differs from service enjoyment data SD300 in FIG. 16 in that there is no “program name” item. Other than that, it is the same as service enjoyment data SD300, and therefore detailed description will not be repeated.

In the video display device 600, the process proceeds to step S146 after the process of step S143.
In step S146, setting final processing T is performed. In the setting final process T, when the control unit 610 receives the service enjoyment data SD310, the control unit 610 stores the received service enjoyment data SD310 in the storage unit 620.

  Control unit 610 can use the service provided by service server 800A (distribution of high-resolution content) to video display device 600 using service use password “aabbcc” indicated in service enjoyment data SD310. Various setting processes for performing the above are performed. Then, using the VDP 632, the control unit 610 causes the display unit 630 to display, for example, a message indicating that the initial setting has been completed for a predetermined time (for example, 1 minute). Then, the initial setting process T ends.

  With the above processing, the initial setting of the video display device 600 is completed. That is, by providing information set via the service in the communication terminal device 500 to the video display device, initial setting in which a plurality of devices are linked can be easily realized.

  Service server 800A may transmit a setting completion mail to the mail address set in communication terminal device 500 after the process of step S185. The setting completion mail is, for example, an e-mail in which a message indicating that the initial setting of the video display device 600 has been completed is displayed.

  The communication terminal device 500 can know that the initial setting of the video display device 600 has been completed by receiving a setting completion mail addressed to itself from a mail server (not shown).

(Content reservation)
Next, a process for making a content download reservation based on the content introduction mail transmitted from the service server 800A (hereinafter also referred to as a content reservation process) will be described. Hereinafter, the processing performed by communication terminal device 500 in content reservation processing is also referred to as content reservation processing M.

  Note that the content reservation processing M is also processing performed by the control unit 510 in the communication terminal device 500 by executing the content management program received in the processing of step S117 in FIG. The content management program is also a remote operation program for remotely operating the service server 800A according to a reservation instruction or the like to be described later.

  In the content reservation process, the process performed by the video display device 600 is also referred to as a content reservation process T. In the content reservation process, the process performed by the service server 800A is also referred to as a content reservation process S.

  Here, it is assumed that new high-resolution content is additionally stored in the storage unit 820 of the service server 800A every predetermined period (for example, one week). Further, each of the plurality of high resolution contents stored in the storage unit 820 is associated with content related data indicating related information of the corresponding high resolution content. Content-related data associated with each of the plurality of high-resolution contents is stored in the storage unit 820. Here, it is assumed that the storage unit 820 stores high-resolution content associated with the following content-related data CTD400.

  FIG. 18 is a diagram showing content-related data CTD400 as an example. Referring to FIG. 18, in content-related data CTD400, “content ID” is an ID for specifying content. “File name” is the file name of the content. “Title” is the title of the content. “Genre” is the genre to which the content belongs. “Time (minutes)” is the content playback time. “Content” is a summary of the content. Here, the extension of the file name is “mpg”, but is not limited thereto.

  The “reproduction permission period” is a period during which content reproduction is permitted. The “reproduction permission time zone” is a time zone in which content reproduction is permitted in the “reproduction permission period”. The “reproduction permission time zone” is set by the distributor of the corresponding content. “Price (yen)” is the price of the content. “Download time” is the time required to download the content at a predetermined speed (for example, 10 Mbps). In the item “available date”, “after 7 days from the reservation date” indicates that the content can be reproduced after at least 7 days have passed since the download reservation date (reservation date) described later.

  “Keyword” indicates a keyword related to the content. The related keyword is, for example, a content title, a content genre, a content performer name, or the like. “Allowed playback control” indicates playback control permitted for the content. “Prohibited playback control” indicates playback control that is prohibited for the content.

  The “DL reservation password” is a password issued when a download reservation to be described later is performed. The “DL-completed password” is a password issued when content download is completed. “Reproduction permitted date / time” is a date / time when reproduction of content is permitted. The “reproduction permission date / time” is 0:00 am on the first day indicated by the “reproduction permission period”. Therefore, when the “reproduction permission period” is “May 1, 2007 to August 31, 2007”, the “reproduction permission date” is “May 1, 2007 0:00 am”. .

  Note that each of the plurality of high-resolution contents stored in the storage unit 820 is deleted by the control unit 810 together with the corresponding content-related data when the “reproduction permission period” indicated by the associated content-related data has passed. Is done.

  FIG. 19 is a flowchart of the content reservation process T, the content reservation process M, and the content reservation process S. Referring to FIG. 19, in content reservation process S, first, the process of step S281 is performed.

  In step S <b> 281, the control unit 810 determines whether the preference content is stored in the storage unit 820. Here, the preference content is high-resolution content associated with content-related data indicating the preference keyword indicated in the user data stored in the storage unit 820.

  As described above, the preference keyword is a keyword according to the user's preference. That is, the preference content is content according to the user's preference. If YES in step S281, the process proceeds to step S282. On the other hand, if NO at step S281, the process at step S281 is performed again.

  Here, it is assumed that the storage unit 820 stores high-resolution content associated with the content-related data CTD400 of FIG. Further, it is assumed that the user data stored in the storage unit 820 is the user data MD200 of FIG. In this case, the preference content associated with the content-related data CTD400 indicating the preference keyword “action” indicated in the user data MD200 is stored in the storage unit 820, and thus the process proceeds to step S282.

  In step S282, preference content data is transmitted. Specifically, the control unit 810 uses the mail address “taro-m@aaa.ne.jp” set in the communication terminal device 500 as a transmission destination for the preference content notification mail as an e-mail, and a mail server (not shown). Send to. Here, the preference content notification e-mail is an e-mail for notifying information on the preference content whose existence has been confirmed in step S281.

  Further, the following content-related data CTD400A is attached to the preference content notification mail. That is, the transmitted favorite content notification mail is an electronic mail as the favorite content data to which the content related data CTD400A is attached.

  Note that the method for transmitting content-related data is not limited to the method using e-mail, and the service server 800A may transmit directly to the communication terminal device 500 using a network. Then, the process of step S282 ends.

  FIG. 20 is a diagram showing content-related data CTD400A as an example. Referring to FIG. 20, items other than “registration position” shown in content-related data CTD 400 </ b> A have been described with reference to FIG. 18, so detailed description will not be repeated. In the initial state, the information of the items “DL reserved password” and “DL completed password” is “none”.

  “Registered position” is the position of the video display device 600 registered in the service server 800A. Specifically, the “registered position” is the longitude and latitude of the video display device 600 indicated in the service use necessity data TD110 of FIG. 13 stored in the storage unit 820 by the process of step S182 of FIG.

  When the mail server receives a favorite content notification mail as an e-mail addressed to the mail address “taro-m@aaa.ne.jp”, the mail server sends the received favorite content notification mail to the mail address “taro-m @ It is transmitted to the communication terminal device 500 in which “aaa.ne.jp” is set. Note that the content-related data CTD400A is attached to the transmitted preference content notification mail.

  Referring to FIG. 19 again, in the content reservation process M, first, the process of step S211 is performed.

  In step S211, control unit 510 determines whether or not a preference content notification mail as preference content data to which content-related data is attached has been received. If YES in step S211, the process proceeds to step S212. On the other hand, if NO at step S211, the process at step S211 is performed again. Here, it is assumed that the preference content notification mail to which the content related data CTD400A is attached is received from the mail server, and the process proceeds to step S212.

  In step S212, a notification image display process M is performed. In the notification image display processing M, the control unit 510 generates the following notification image MG300 based on the received preference content notification mail and the content-related data CTD400A using the VDP 532, and displays the notification image MG300 on the display unit 530. Let And the process of step S212 is complete | finished.

  FIG. 21 is a diagram showing a notification image MG300 as an example. Referring to FIG. 21, information such as title, content, release date (playback permission date), price, etc., shown in received content-related data CTD400A is displayed in notification image MG300. In addition, in the notification image MG300, a message indicating that a download reservation for the content specified by the received content-related data CTD400A is possible is displayed. In addition, a button image MBG380 is arranged in the notification image MG300. Button image MBG380 is a button image for making a download reservation for the content specified by content-related data CTD400A to service server 800A by being pressed.

Referring to FIG. 19 again, after the process of step S212, the process proceeds to step S213.
In step S213, control unit 510 determines whether there is a reservation operation M or not. The reservation operation M is an interface operation M for pressing the button image MBG380. If YES in step S213, the process proceeds to step S214. On the other hand, if NO at step S213, the process at step S213 is performed again. Here, assuming that there is a reservation operation M, the process proceeds to step S214.

  In step S214, a reservation process M is performed. In reservation process M, control unit 510 transmits reservation instruction M to service server 800A. The reservation instruction M is an instruction for making a content download reservation. That is, the reservation instruction M is also a request instruction for requesting content from the service server 800A. The reservation instruction M includes the content ID “HD-CT0123” indicated in the received content-related data CTD400A.

In the content reservation process S, the process proceeds to step S283 after the process in step S282.
In step S283, control unit 810 determines whether reservation instruction M has been received or not. If YES at step S283, control proceeds to step S284. On the other hand, if NO at step S283, the process at step S283 is performed again. Here, assuming that the reservation instruction M including the content ID “HD-CT0123” is received, the process proceeds to step S284.

  In step S284, reservation acceptance processing S is performed. In reservation acceptance processing S, control unit 810 transmits reservation acceptance data S to communication terminal device 500. In the reservation acceptance data S, the DL reservation password “DLRabc” shown in the content related data CTD400 of FIG. 18 indicating the content ID “HD-CT0123” included in the received reservation instruction M and the date and time when the reservation instruction M was received ( (Hereinafter also referred to as “reservation reception date and time”). The DL reservation password is a password issued when a content download reservation is accepted. Here, it is assumed that the reservation reception date and time is, for example, 14:30 on April 1, 2007.

  Hereinafter, the content specified by the content ID (for example, “HD-CT0123”) included in the reservation acceptance data S is also referred to as reserved content. Then, the process of step S284 ends.

  In the content reservation process M, when the reservation reception data S is received in the reservation process M in step S214, the control unit 510 receives the DL reservation password “DLRabc” included in the received reservation reception data S and the reservation reception date and time “2007”. "April 1, 14:30" is added to the content-related data CTD400A of FIG. In this case, the content related data CTD400A is the following content related data CTD400B. That is, the content related data CTD400B is stored in the storage unit 520.

  FIG. 22 is a diagram showing content-related data CTD400B as an example. Referring to FIG. 22, content-related data CTD400B is compared with content-related data CTD400A of FIG. 20 in that DL reservation password information is described and a reservation reception date and time item is added. Is different. Other than that, it is the same as the content-related data CTD400A, and therefore detailed description will not be repeated.

  In the reservation process M in step S214, the control unit 510 uses the VDP 532 to generate the following reservation completion image MG400 and causes the display unit 530 to display the reservation completion image MG400. Then, the process of step S214 ends.

  FIG. 23 is a diagram showing a reservation completion image MG400 as an example. Referring to FIG. 23, reservation completion image MG400 displays a message indicating that the download reservation is completed, a reproducible date, and the like. In addition, a button image MBG480 is arranged in the reservation completion image MG400. When the button image MBG480 is pressed, the content reservation processing program is temporarily terminated.

  Referring to FIG. 19 again, in the content reservation process S, the process proceeds to step S285 after the process in step S284.

  In step S285, control unit 810 transmits download instruction data S to video display device 600 identified by content receiving device ID “11TA” indicated in service use necessity data TD110 of FIG. The download instruction data S is data for instructing the video display device 600 to download content. The download instruction data S includes the following instruction data DLD500. Then, the process of step S285 ends.

  FIG. 24 is a diagram showing instruction data DLD 500 as an example. Referring to FIG. 24, in instruction data DLD 500, “content ID” is an ID for specifying reserved content. “Title” is the title of the reserved content.

  The “related content ID” is an ID for specifying content related to the reserved content. The content related to the reserved content is, for example, the previous work or sequel content of the reserved content when the reserved content is, for example, series content. The “related content title” is the title of the content specified by the “related content ID”. If there is no content related to the reserved content, the information of the items “related content ID” and “related content title” is none.

  Referring to FIG. 19 again, in the content reservation process T, first, the process of step S241 is performed.

  In step S241, control unit 610 determines whether or not download instruction data S has been received. If YES in step S241, the process proceeds to step S242. On the other hand, if NO at step S241, the process at step S241 is performed again. Here, assuming that download instruction data S including instruction data DLD500 in FIG. 24 has been received, the process proceeds to step S242.

  In step S242, it is determined whether there is related content. Specifically, control unit 610 determines whether or not the received instruction data includes related content ID information. If YES in step S242, the process proceeds to step S243. On the other hand, if NO at step S242, the process proceeds to step S245 described later. Here, it is assumed that the received instruction data is instruction data DLD500, and the process proceeds to step S243.

  In step S243, it is determined whether there is related content data. Specifically, it is determined whether or not the data of the content specified by the related content ID is stored in the storage unit 620 (or based on the history data, whether or not the content has been viewed in the past is determined. ). If YES in step S243, the process proceeds to step S245 described later. On the other hand, if NO at step S243, the process proceeds to step S244. Here, it is assumed that content data specified by the related content ID is not stored in storage unit 620, and the process proceeds to step S244.

  In step S244, a related content acquisition process T is performed. In the related content acquisition process T, the control unit 610 transmits a related content request instruction T, which is an instruction for requesting related content, to the service server 800A. Hereinafter, the related content requested by the related content request instruction T is also referred to as request-related content. The related content request instruction T includes a related content ID “HD-CT0124”.

  Here, the related content acquisition processing T takes into account the convenience of the user by automatically preventing the user from forgetting to see the previous work in a series, etc., or providing it to the user at the same time when the next work has already been released. It is processing.

  Referring to FIG. 19 again, in the content reservation process S, the process proceeds to step S286 after the process in step S285.

  In step S286, control unit 810 executes content transmission processing S. The content transmission process S is a process performed independently of other processes. Then, the process of step S286 ends.

  In the content transmission process S, the control unit 810 transmits content based on the received instruction and content-related data corresponding to the content to the video display device 600 via the network 70 and the communication unit 50. Here, it is assumed that the received instruction is a related content request instruction T including the related content ID “HD-CT0124”. In this case, the control unit 810 displays the request related content specified by the related content ID “HD-CT0124” and the content related data corresponding to the request related content via the network 70 and the communication unit 50. To 600.

  In the related content acquisition process T in step S244, the control unit 610 stores the request related content in the storage unit 620 while receiving the request related content. In addition, when receiving the content-related data, the control unit 610 stores the received content-related data in the storage unit 620. When the reception of the request related content is completed, the process proceeds to step S245.

  In step S245, a content acquisition process T is performed. In the content acquisition process T, the control unit 610 transmits a content request instruction T, which is an instruction for requesting content, to the service server 800A. Hereinafter, the content requested by the content request instruction T is also referred to as requested content. The content request instruction T includes a content ID “HD-CT0123”.

  In the content transmission process S, the same process as described above is performed. Here, it is assumed that the received instruction is a content request instruction T including the content ID “HD-CT0123”. In this case, the control unit 810 displays the requested content specified by the content ID “HD-CT0123” and the content related data CTD400 of FIG. 18 corresponding to the requested content via the network 70 and the communication unit 50. Transmit to device 600.

  In the content acquisition process T in step S245, the control unit 610 causes the storage unit 620 to store the requested content while receiving the requested content. In addition, when receiving the content-related data CTD400, the control unit 610 stores the received content-related data CTD400 in the storage unit 620. Here, the requested content received from the service server 800A is a high-resolution content with a large data capacity. Assume that the data capacity of the requested content is, for example, 20 gigabytes. Therefore, a considerable time is required until the reception of the requested content is completed.

  Therefore, the service server 800A may be notified at predetermined time intervals (for example, 5 minutes) as to what percentage of the total capacity of the requested content has been received by the video display device 600 at present. When reception of the requested content is completed, the process proceeds to step S246. Note that the processing of steps S242, S243, and S244 described above may be performed after step S245.

  In step S246, control unit 610 transmits a download completion notification to service server 800A. The download completion notification includes the content ID “HD-CT0123” that has been received (downloaded). And this content reservation process T is complete | finished.

In the content reservation process S, the process proceeds to step S287 after the process of step S286.
In step S287, control unit 810 determines whether or not a download completion notification has been received. If YES in step S287, the process proceeds to step S288. On the other hand, if NO at step S287, the process at step S287 is performed again. Here, assuming that a download completion notification including the content ID “HD-CT0123” has been received, the process proceeds to step S288. Note that when the download completion notification is received, the content transmission process S executed independently of other processes is also terminated.

  In step S288, control unit 810 transmits a DL completed password issued when content download is completed to communication terminal device 500. The transmitted DL password is “DLFabc” shown in the content-related data CTD400 of FIG. 18 indicating the content ID “HD-CT0123”. And this content reservation process S is complete | finished.

In the content reservation process M, the process proceeds to step S216 after the process of step S214.
In step S216, control unit 510 determines whether or not a DL completed password has been received. If YES in step S216, the process proceeds to step S217. On the other hand, if NO at step S216, the process at step S216 is performed again. Here, assuming that the DL completed password “DLFabc” has been received, the process proceeds to step S217.

  In step S217, a related data update process M is performed. In the related data update process M, the control unit 510 updates the content-related data by adding the received DL completed password “DLFabc” to the content-related data CTD400B in FIG. In this case, the content related data CTD400B is the following content related data CTD400C. That is, the content related data CTD400C is stored in the storage unit 520. Then, the content reservation process M ends.

  FIG. 25 is a diagram showing content-related data CTD400C as an example. Referring to FIG. 25, content-related data CTD400C is different from content-related data CTD400B in FIG. 22 in that DL completed password information is described. Other than that, it is the same as the content-related data CTD400B, so detailed description will not be repeated.

  As described above, the communication terminal device 500 receives the preference content notification mail attached with the content related data transmitted from the service server 800A. The preference content notification e-mail is an e-mail for notifying information on the preference content based on the preference keyword registered by the user. As described above, the preference content is content according to the user's preference. Therefore, there is an effect that the user can easily obtain information on the preference content according to the preference.

  Further, in the communication terminal device 500, the user can store the favorite content in the storage unit 620 of the video display device 600 only by performing a reservation operation for pressing the button image MBG380 in FIG. That is, there is an effect that the favorite content can be acquired with a simple operation.

  By repeating the process of FIG. 19 described above, the storage unit 620 of the video display device 600 stores a plurality of high-resolution contents as preference contents. In addition, the storage unit 520 of the communication terminal device 500 stores a plurality of pieces of content-related data corresponding to the plurality of high-resolution contents stored in the storage unit 620, respectively.

(Content management)
Next, in communication terminal device 500, control unit 510 shows content management image MG500 displayed on display unit 530 by executing the content management program received in the process of step S117 of FIG.

  FIG. 26 is a diagram showing a content management image MG500 as an example. Referring to FIG. 26, content management image MG500 displays the current date and time (for example, April 20, 2007, 17:45). In addition, reserved list image MG510 is arranged in content management image MG500.

  Reserved list image MG510 is an image generated by control unit 510 based on a plurality of content-related data stored in storage unit 520. Reserved list image MG510 shows a plurality of reserved content information. In reserved list image MG510, “number” is a number for specifying any of a plurality of reserved content information. Each of the plurality of reserved content information includes “title” and “state” information.

  “Title” is the title of the content indicated in the corresponding content-related data. The “state” indicates a state based on the reproduction permission date and time indicated in the corresponding content-related data.

  For example, the content related data corresponding to the reserved content information of number “1” shown in reserved list image MG510 is content related data CTD400C in FIG. The current date and time is assumed to be 17:45 on April 20, 2007. In this case, since the reproduction permission date and time indicated in the content-related data CTD400C is “May 1, 2007 0: 0”, the “status” item displays that reproduction is possible from May 1, 2007. Is done.

  If the reproduction permission date and time indicated by the content related data corresponding to the reserved content information is a date and time before 17:45 on April 20, 2007, which is the current date and time, “Playable” is displayed.

  In addition, a selection frame MSL520 is arranged in the reserved list image MG510. The selection frame MSL 520 is a frame for selecting one of a plurality of reserved content information. Selection frame MSL520 moves upward when direction button 541A is pressed. The selection frame MSL 520 moves downward when the direction button 541B is pressed.

  In the content management image MG500, button images MBG582 and MBG584 are further arranged.

  The button image MBG582 is a button image for displaying a list of contents for which download reservation is not performed by being pressed. That is, when the button image MBG582 is pressed, titles of a plurality of contents that have not been subjected to the processes in steps S213 and S214 in FIG. 19 are displayed.

  The button image MBG584 is a button image for showing detailed information of content indicated by the content related data corresponding to the reserved content information selected by the selection frame MSL520 by being pressed.

  Here, it is assumed that there is an interface operation M for pressing the button image MBG 584 in a state where the reserved content information with the number “1” is selected by the selection frame MSL520. In this case, based on the content-related data CTD400C of FIG. 25 corresponding to the reserved content information with the number “1”, control unit 510 uses VDP 532 to generate the following content detailed image MG600, and the content detailed image MG 600 is displayed on display unit 530.

  FIG. 27 is a diagram showing a content detail image MG600 as an example. Referring to FIG. 27, content detail image MG600 displays information such as title, content, release date (playback permission date), price, and the like shown in content-related data CTD400C. The content detail image MG600 shows the time from the current date and time to the reproduction permission date and time indicated in the content related data CTD400C.

  In addition, button images MBG680 and MBG690 are displayed in content detail image MG600. In the button image MBG680, a message is displayed when the current date and time is a date and time prior to the reproduction permission date and time “May 1, 2007 00:00” indicated in the content-related data CTD400C. The displayed message is, for example, a message indicating that playback is possible from “0 May 0, 2007,” which is the playback permission date and time. In this case, the button image MBG680 is expressed in gray or the like, and nothing happens when the button image MBG680 is pressed.

  The button image MBG690 is a button image for causing the display unit 530 to display the content management image MG500 by being pressed. That is, when the button image MBG690 is pressed, the process returns to the content management image MG500.

  Note that when the current date and time is after the reproduction permission date and time “May 1, 2007 00:00” indicated in the content-related data CTD400C, the content detail image MG600 becomes the following content detail image MG600A.

  FIG. 28 is a diagram showing a content detail image MG600A as an example. Referring to FIG. 28, content detail image MG600A has a message that the content is reproducible as compared to content detail image MG600, and button image MBG680A is arranged instead of button image MBG680. It is different from the point that is done. Other than that, it is the same as content detailed image MG600, and therefore detailed description will not be repeated.

  Button image MBG680A is a button image for reproducing the content indicated in content-related data CTD400C by being pressed.

(Content playback)
Next, a process for reproducing high-resolution content as favorite content stored in the storage unit 620 of the video display device 600 (hereinafter also referred to as content reproduction process) will be described.

  Here, the service server 800A functions to transmit accurate date and time information (hereinafter also referred to as NTP date and time information) based on NTP (Network Time Protocol) upon request (hereinafter also referred to as NTP date and time information management function). Have Further, the service server 800A has a function of transmitting NTP date / time information (hereinafter also referred to as position-corresponding NTP date / time information) corresponding to the position notified by the above-described GPS position information or the like upon request (hereinafter referred to as position correspondence). NTP date / time information management function).

  In general, the date and time (hereinafter also referred to as management date and time) managed by an electronic device has an error from the accurate date and time with the passage of time, even if the date and time are once adjusted. For this reason, the electronic device obtains date and time information based on NTP every predetermined period (for example, one month), thereby correcting the management date and time to an accurate date and time, thereby reducing the error in the management date and time to a predetermined value or less. Can keep. That is, the date / time information based on NTP is also information for correcting the date / time.

  Hereinafter, the processing performed by communication terminal device 500 in content playback processing is also referred to as content playback processing M. In the content reproduction process, the process performed by the video display device 600 is also referred to as a content reproduction process T. In the content reproduction process, the process performed by the service server 800A is also referred to as a content reproduction process S. Note that the content reproduction process S may be performed not by the service server 800A but by another device having the NTP date / time information management function and the position-corresponding NTP date / time information management function described above.

  Here, it is assumed that the service use necessary data TD110 of FIG. 13 and the content related data CTD400C of FIG. 25 are stored in the storage unit 520 of the communication terminal device 500. In communication terminal device 500, control unit 510 executes the content management program, and content detailed image MG600A of FIG. 28 generated based on content-related data CTD400C is displayed on display unit 530.

  Further, it is assumed that the content related data CTD400 of FIG. 18 is stored in the storage unit 620 of the video display device 600. In communication terminal device 500 and video display device 600, a date and time management process for managing the current date and time is performed. The date management process is a process performed independently of other processes.

  FIG. 29 is a flowchart of the content reproduction process T, the content reproduction process M, and the content reproduction process S. Referring to FIG. 29, in the content reproduction process M, first, the process of step S311 is performed.

  In step S311, control unit 510 determines whether or not there is a reproduction operation M. The reproduction operation M is an interface operation M for pressing the button image MBG680A. If YES in step S311, the process proceeds to step S312. On the other hand, if NO at step S311, the process at step S311 is performed again. In the following, the content that is to be played back by the playback operation M is also referred to as playback target content. Here, it is assumed that the reproduction target content is a high-resolution content specified by the content ID indicated in the content-related data CTD400C. Here, assuming that there is a reproduction operation M, the process proceeds to step S312.

  In step S312, it is determined whether or not the content to be played has already been reserved for download. Specifically, control unit 510 determines whether or not DL reservation password information is included in the content-related data corresponding to the content to be played. If YES in step S312, the process proceeds to step S313. On the other hand, if NO in step S312, the process proceeds to step S328 to be described later. Here, it is determined that the content related data corresponding to the reproduction target content is the content related data CTD400C in FIG. 25, and the process proceeds to step S313.

  In step S313, it is determined whether or not an available date condition is satisfied. Specifically, control unit 510 determines whether or not the current date is a date and time that satisfies the availability date indicated in the content-related data corresponding to the content to be played. If YES in step S313, the process proceeds to step S314. On the other hand, if NO at step S313, the process proceeds to step S328 described later.

  Here, it is assumed that the content related data corresponding to the reproduction target content is the content related data CTD400C. The current date and time is “May 2, 2007, 17:30”. In this case, the current date and time “May 2, 2007, 17:30” is the date and time seven days have passed since the reservation reception date and time “April 1, 2007, 14:30”. Since it is the date and time that satisfies, the process proceeds to step S314.

  In step S314, it is determined whether or not the playback target content has been downloaded. Specifically, it is determined whether or not the content-related data corresponding to the reproduction target content includes DL completed password information. If YES in step S314, the process proceeds to step S315. On the other hand, if NO at step S314, the process proceeds to step S328 described later. Here, it is assumed that the content-related data corresponding to the content to be played is content-related data CTD400C, and the process proceeds to step S315.

  In step S315, date information acquisition processing M is performed. In date / time information acquisition process M, control unit 510 transmits date / time information request instruction M to service server 800A. The date / time information request instruction M is an instruction for requesting the position NTP date / time information from the service server 800A. The date / time information request instruction M includes the position information (longitude: 135 degrees 40 minutes east longitude and 34 degrees 25 minutes north latitude) shown in the service use necessity data TD110 of FIG.

In the content reproduction process S, first, the process of step S381 is performed.
In step S381, control unit 810 determines whether date / time information request instruction M has been received or not. If YES in step S381, the process proceeds to step S382. On the other hand, if NO at step S381, the process at step S381 is performed again. Here, it is assumed that the date / time information request instruction M including the position information (longitude: 135 degrees 40 minutes east longitude and latitude: 34 degrees 25 minutes north latitude) of the video display device 600 is received, the process proceeds to step S382.

  In step S382, control unit 810 transmits position-corresponding NTP date / time information to communication terminal apparatus 500. Here, the transmitted position-corresponding NTP date / time information corresponds to the position information (longitude: 135 degrees east longitude and latitude: 34 degrees 25 minutes north latitude) included in the received date information request instruction M. Date and time information. As an example, the date and time indicated by the position-corresponding NTP date and time information to be transmitted is “May 2, 2007, 17:30:30”.

  In the date / time information acquisition process M in step S315 of the content reproduction process M, the control unit 510 receives the position-corresponding NTP date / time information and causes the storage unit 520 to store the received position-corresponding NTP date / time information. Here, it is assumed that the date and time indicated by the position-corresponding NTP date and time information stored in the storage unit 520 is “May 2, 2007, 17:30:30”. Then, the process proceeds to step S316.

  In step S316, control unit 510 determines whether or not the date and time indicated by the position-corresponding NTP date and time information is after the reproduction permission date and time indicated in the content-related data corresponding to the reproduction target content. If YES in step S316, the process proceeds to step S317. On the other hand, if NO at step S316, the process proceeds to step S328 described later.

  Here, it is assumed that the content related data corresponding to the reproduction target content is the content related data CTD400C. Further, the date and time indicated by the position-corresponding NTP date and time information is “May 2, 2007, 17:30:30”. In this case, since the date and time “May 2, 2007, 17:30:30” indicated by the position-corresponding NTP date information is after the reproduction permission date and time “May 1, 2007, 00:00”, the process goes to step S317. move on.

  In step S317, control unit 510 determines whether or not the date / time indicated by the position-corresponding NTP date / time information is within the reproduction permission time zone indicated in the content-related data corresponding to the reproduction target content. If YES in step S317, the process proceeds to step S320. On the other hand, if NO at step S317, the process proceeds to step S328 described later.

  Here, it is assumed that the content related data corresponding to the reproduction target content is the content related data CTD400C. Further, the date and time indicated by the position-corresponding NTP date and time information is “May 2, 2007, 17:30:30”. In this case, since the date and time indicated by the position-corresponding NTP date and time information “May 2, 2007, 17:30:30” is within the reproduction permission time zone “8: 00-22: 00”, the process proceeds to step S320. move on.

  Here, the reproduction permission time zone is a time zone specified by a content creator, a content distributor, or the like. The reproduction permission time zone is a time zone for viewing such as “content for children” and “content for adults”. In addition, the reproduction permission time zone may be determined by the time that can be handled by the telephone counter in a telephone shopping cooperation program, for example.

  In step S320, a purchase process M is performed. In the purchase process M, the control unit 510 performs a settlement process for purchasing the content to be played on the service server 800A. Payment processing is performed by communication terminal device 500 and service server 800A. The payment process is, for example, payment using electronic money. It should be noted that the settlement process performed by service server 800A is a process performed independently of other processes.

  Here, it is assumed that the purchased content is content whose content ID is “HD-CT0123”. When the settlement process ends, control unit 510 uses VDP 532 to display a message indicating that the content of the playback target content has been purchased on display unit 530 for a predetermined time (for example, 20 seconds), and proceeds to step S322. If the playback target content is free, the process proceeds to step S322 without performing the above-described settlement process.

  In step S322, a reproduction instruction data generation process M is performed. The reproduction instruction data generation process M is a process for generating reproduction instruction data. The reproduction instruction data is data for instructing the video display device 600 to reproduce the reproduction target content. That is, the reproduction instruction data is also reproduction information for reproducing the content to be reproduced.

  In the reproduction instruction data generation process M, the control unit 510 indicates the date and time “May 2, 2007, 17:30:30” indicated by the received position-corresponding NTP date / time information and the content-related data CTD400C in FIG. Based on the content ID “HD-CT0123”, DL reservation password “DLRabc”, DL completed password “DLFabc”, and reproduction permission date and time “May 1, 2007 0: 0”, the following reproduction instruction data PLD600 is generated To do. Then, the process of step S322 ends.

FIG. 30 shows reproduction instruction data PLD 600 as an example.
Referring to FIG. 29 again, in the content reproduction process M, the process proceeds to step S323 after the process in step S322.

  In step S323, control unit 510 transmits generated reproduction instruction data PLD600 to video display device 600. Then, the process proceeds to step S324.

  In step S324, control unit 510 sets communication terminal apparatus 500 to the remote control mode. Then, the content reproduction process M ends.

  In the content reproduction process T, first, the process of step S341 is performed. Here, the remote control mode means that the communication terminal device 500 is in a state (remote control state) in which the video display device 600 can be controlled by the operation of the communication terminal device 500.

  In step S341, control unit 610 determines whether or not reproduction instruction data has been received. If YES in step S341, the process proceeds to step S342. On the other hand, if NO at step S341, the process at step S341 is performed again. Here, assuming that the reproduction instruction data PLD600 is received, the process proceeds to step S342.

  In step S342, control unit 610 determines whether or not the date and time indicated by the position-corresponding NTP date and time information indicated in the received reproduction instruction data is after the reproduction permission date and time indicated in the reproduction instruction data. If YES in step S342, the process proceeds to step S343. On the other hand, if NO at step S342, the process proceeds to step S348 described later.

  Here, it is assumed that the received reproduction instruction data is reproduction instruction data PLD600. In this case, the date and time “May 2, 2007, 17:30:30” indicated by the position-corresponding NTP date information is after the reproduction permission date and time “May 1, 2007, 00:00”. Therefore, it is determined as YES in Step S342, and the process proceeds to Step S343.

  As described above, by using the position-corresponding NTP date / time information, the date / time managed by the video display device 600 is illegally changed and the reproduction target content is reproduced by performing the determination process in step S342. Fraudulent acts such as Also, it is possible to prevent an illegal act such as causing the video display device 600 to be played back in another country with a time difference.

  Here, it is assumed that the content to be reproduced is, for example, a movie that is permitted to be reproduced (screened) at 10:00 am in each of Japan and the United States. In this case, as described above, by performing the determination process using the position-corresponding NTP date / time information, the content to be played back until 10 am regardless of whether the video display device 600 is in Japan or the United States. Unauthorized playback can be prevented.

  In step S343, it is determined whether the reproduction information matches. Here, the reproduction information is information necessary for reproducing the reproduction target content. The reproduction information is information including the DL reservation password, the DL completed password, and the reproduction permission date / time indicated by the content related data indicating the content ID indicated in the received reproduction instruction data.

  Specifically, control unit 610 includes DL reservation password, DL completed password, and playback permission date / time included in the playback information, and DL reservation password, DL completed password, and playback permission date / time included in the received playback instruction data. Are determined to match each other. If YES in step S343, the process proceeds to step S344. On the other hand, if NO at step S343, the process proceeds to step S348 described later.

  Here, the received reproduction instruction data is reproduction instruction data PLD600. Accordingly, the content related data indicating the content ID “HD-CT0123” indicated in the reproduction instruction data PLD 600 is the content related data CTD 400 of FIG. 18 stored in the storage unit 620.

  In this case, the reproduction information includes a DL reservation password “DLRabc”, a DL completed password “DLFabc”, and a reproduction permission date and time “May 1, 2007, 0: 0”. Accordingly, the DL reservation password “DLRabc”, the DL completed password “DLFabc”, and the playback permission date “00:00 on May 1, 2007” included in the playback information are included in the received playback instruction data PLD600. The reserved password, the DL completed password, and the playback permission date / time match. Accordingly, YES is determined in the step S343, and the process proceeds to the step S344.

  In step S344, a reproduction process T is performed. In the reproduction process T, the control unit 610 reproduces the reproduction target content specified by the content ID “HD-CT0123”, and causes the display unit 630 to display an image of the reproduction target content being reproduced.

  When the control unit 610 receives a remote control signal for controlling reproduction of the reproduction target content from the communication terminal device 500 in the remote control mode during reproduction of the reproduction target content, the control unit 610 receives the received remote control signal. The reproduction of the content to be reproduced is controlled accordingly.

  For example, when control unit 610 receives a remote control signal for pausing playback target content from communication terminal device 500, control unit 610 pauses the playback target content being played back. When control unit 610 receives a remote control signal for performing prohibited reproduction / reproduction control (slow reproduction) shown in content-related data CTD 400 in FIG. 18, instructed reproduction control is prohibited on display unit 630. A message to the effect is displayed.

  When the reproduction of the content to be reproduced is finished, the processing in step S344 is finished, and this content reproduction processing T is finished.

  In the content reproduction process M, an error process M is performed in step S328. In error processing M, control unit 510 displays an error message on display unit 530 using VDP 532. The error message is, for example, a message “Content that has been instructed to be played cannot be played back”. Then, the content reproduction process M ends.

  In the content reproduction process T, an error process T is performed in step S348. In the error process T, the control unit 610 displays an error message on the display unit 630 using the VDP 632. The error message is, for example, a message “Content that has been instructed to be played cannot be played back”. Then, the content reproduction process T ends.

  As described above, in the present embodiment, a download reservation for a playback target content is made before the playback permission date and time set for the playback target content. Then, the playback target content for which download reservation has been made is stored in the storage unit 620 of the video display device 600 before the set playback permission date and time.

  The reproduction of the reproduction target content is conditional on the current date and time being within the reproduction permission time zone set for the reproduction target content. Accordingly, when the reproduction target content is a program suitable for viewing in the morning, for example, by setting the reproduction permission time zone from 7:00 to 10:00, the time zone suitable for reproducing the reproduction target content Only playback can be permitted.

  Further, in order to reproduce the reproduction target content, the reproduction instruction data generated by the communication terminal device 500 that has performed the purchase processing of the reproduction target content is necessary. Therefore, it is possible to prevent the reproduction target content from being illegally reproduced.

  Further, as described above, the playback target content is stored in the storage unit 620 of the video display device 600 before the set playback permission date and time. The reproduction target content can be reproduced after the reproduction permission date and time.

  Therefore, even when the data volume of the content to be played is large, it can be played back quickly after the playback permission date and time. In other words, there is an effect that the content provided with the date and time conditions can be quickly reproduced. For example, it becomes possible to use high-resolution content even in a low-bandwidth communication environment as compared with FTTH (Fiber To The Home), such as an ADSL line.

  In the present embodiment, when the date / time indicated by the position-corresponding NTP date / time information received from service server 800A is after the reproduction permission date / time corresponding to the reproduction target content, communication terminal apparatus 500 reproduces the reproduction target content. Reproduction instruction data for generating the data is generated. Communication terminal apparatus 500 transmits the reproduction instruction data to video display apparatus 600. The video display device 600 reproduces the reproduction target content by receiving the reproduction instruction data.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

<Variation 1 of the first embodiment>
(Another example 1 of content playback)
Next, in the content reproduction process M of FIG. 29, a process when the order in which the date / time information acquisition process M in step S315 is performed (hereinafter also referred to as a content reproduction process MN) will be described.

  FIG. 31 is a flowchart of the content reproduction process T, the content reproduction process MN, and the content reproduction process S. Since content reproduction process T and content reproduction process S in FIG. 31 are the same as content reproduction process T and content reproduction process S in FIG. 29, detailed description will not be repeated.

  In the content reproduction process MN, the process with the same step number as the content reproduction process M in FIG. 29 is performed in the same manner as the process described in FIG. 29, and therefore detailed description will not be repeated. In the following, processing different from the processing in FIG. 29 will be mainly described.

If it is determined as YES in step S314, the process proceeds to step S316N.
In step S316N, control unit 510 determines whether or not the current date and time is after the playback permission date and time indicated in the content-related data corresponding to the playback target content. If YES in step S316N, the process proceeds to step S317N. On the other hand, if NO at step S316N, the process proceeds to step S328.

  Here, it is assumed that the content related data corresponding to the reproduction target content is the content related data CTD400C. The current date and time is “May 2, 2007, 17:30”. In this case, since the current date and time “May 2, 2007, 17:30” is after the reproduction permission date and time “May 1, 2007, 00:00”, the process proceeds to step S317N.

  In step S317N, control unit 510 determines whether or not the current date and time is within the reproduction permission time zone indicated in the content related data corresponding to the reproduction target content. If YES in step S317N, the process proceeds to step S320. On the other hand, if NO at step S317N, the process proceeds to step S328.

  Here, it is assumed that the content related data corresponding to the reproduction target content is the content related data CTD400C. The current date and time is “May 2, 2007, 17:30”. In this case, since the current date and time “May 2, 2007, 17:30” is within the reproduction permission time zone “8:00 to 22:00”, the process proceeds to step S320.

  In step S320, processing similar to that described in the first embodiment is performed, and therefore detailed description will not be repeated. Then, the process proceeds to step S321N.

  In step S321N, a process similar to the date / time information acquisition process M in step S315 of FIG. 29 is performed, and therefore detailed description will not be repeated. With this process, the processes of steps S381 and S382 are performed in the content reproduction process S. Therefore, the position corresponding NTP date / time information is transmitted from the video display device 600 to the communication terminal device 500.

  Then, control unit 510 receives the position-corresponding NTP date / time information, and stores the received position-corresponding NTP date / time information in storage unit 520. Then, similarly to the first embodiment, the processing after step S322 is performed.

  Since the processing after step S322 is the same as that described in the first embodiment, detailed description will not be repeated. Through the processing after step S322, reproduction instruction data for reproducing the reproduction target content is generated and transmitted to the video display device 600. The video display device 600 reproduces the reproduction target content by receiving the reproduction instruction data.

  As described above, in the present embodiment, when the current date and time is after the playback permission date and time corresponding to the playback target content, the communication terminal device 500 uses the position-corresponding NTP date and time information received from the service server 800A. Utilizing this, reproduction instruction data for reproducing the reproduction target content is generated. Communication terminal apparatus 500 transmits the reproduction instruction data to video display apparatus 600. The video display device 600 reproduces the reproduction target content by receiving the reproduction instruction data.

  Therefore, it is possible to easily reproduce the content with the date and time conditions.

  That is, even when the order in which the date and time information acquisition processing M is performed is different from that in FIG. 29, the same effect as in the first embodiment can be obtained.

<Modification 2 of the first embodiment>
(Other example 2 of content reproduction)
Next, processing for reproducing the content to be reproduced according to the position of communication terminal device 500 (hereinafter also referred to as content reproduction processing A) will be described.

  Since the network system in the present embodiment is similar to network system 1000 in the first embodiment, detailed description will not be repeated. The configuration of each of communication terminal device 500, video display device 600, and service server 800A is the same as that described in the first embodiment, and therefore detailed description thereof will not be repeated.

  Hereinafter, the processing performed by communication terminal device 500 in content playback processing A is also referred to as content playback processing MA. In the content reproduction process A, the process performed by the video display device 600 is also referred to as a content reproduction process TA. In the content reproduction process, the process performed by the service server 800A is also referred to as a content reproduction process SA. Note that the content reproduction processing SA may be performed not by the service server 800A but by another device having the NTP date / time information management function and the position-corresponding NTP date / time information management function described above.

  Here, the initial setting process T in FIG. 9, the content reservation process T in FIG. 19, the content reservation process M, and the content reservation process S are performed in the storage unit 520 of the communication terminal device 500 in FIG. The service use necessity data TD110 and the content related data CTD400C of FIG. 25 are stored. Further, it is assumed that the content related data CTD400 of FIG. 18 is stored in the storage unit 620 of the video display device 600.

  FIG. 32 is a flowchart of the content reproduction process TA, the content reproduction process MA, and the content reproduction process SA. In FIG. 32, the processing with the same step number as in FIG. 29 is performed in the same manner as the processing described in FIG. 29, and therefore detailed description will not be repeated. In the following, processing different from the processing in FIG. 29 will be mainly described.

  Referring to FIG. 32, content reproduction process MA is different from content reproduction process M in FIG. 29 in that steps S314A and S314B are performed. Other than that, it is the same as the content reproduction processing M, and therefore detailed description will not be repeated. Since content reproduction process TA and content reproduction process SA are the same as content reproduction process T and content reproduction process S of FIG. 29, detailed description will not be repeated.

If it is determined as YES in step S314, the process proceeds to step S314A.
In step S314A, a position information acquisition process MA is performed. In the position information acquisition process MA, the control unit 510 acquires the GPS position information described above from the communication unit 566. Here, the acquired GPS position information indicates the longitude and latitude of the communication terminal device 500.

  As an example, it is assumed that the longitude and latitude indicated by the GPS position information are X ′ and Y ′, respectively. Here, the longitude X ′ indicates that the longitude indicating the installation position of the video display device 600 shown in the service use necessity data TD110 in FIG. 13 is a predetermined distance (for example, 2 meters) or less from the position of 135 degrees 40 minutes east longitude. It is assumed that the value indicates a position. In addition, the latitude Y ′ is a position indicated by the service use necessity data TD110 in FIG. 13 where the latitude indicating the installation position of the video display device 600 is a predetermined distance (for example, 2 meters) or less from the position of 34 degrees 25 minutes north latitude. Is a value indicating.

  In other words, the longitude X ′ and the latitude Y ′ indicated by the GPS position information are values indicating positions within a predetermined range (for example, a radius of 2 meters) from the installation position of the video display device 600. That is, the position of communication terminal device 500 indicated by longitude X ′ and latitude Y ′ is a value indicating a position within a predetermined range (for example, a radius of 2 meters) from the installation position of video display device 600. Then, control unit 510 causes storage unit 520 to store position data based on the acquired GPS position information. Then, the process proceeds to step S314B.

  In step S314B, it is determined whether or not the position of communication terminal apparatus 500 is within a predetermined range from the installation position of video display apparatus 600. Specifically, the control unit 510 indicates that the longitude X ′ is a value indicating a position within a predetermined distance (for example, 2 meters) from the position of the longitude indicated in the service use necessity data TD110 of FIG. , It is determined whether or not the latitude Y ′ is a value indicating a position equal to or less than a predetermined distance (for example, 2 meters) from the position of the latitude indicated in the service use necessity data TD110. If YES in step S314B, the process proceeds to step S315. On the other hand, if NO at step S314B, the process proceeds to step S328 described above.

  Here, the longitude X ′ is a value indicating a position within a predetermined distance (for example, 2 meters) from the position of the longitude indicated in the service use necessary data TD110, and the latitude Y ′ is the service use necessary data. It is assumed that the value is a value indicating a position not more than a predetermined distance (for example, 2 meters) from the position of latitude indicated by TD110. That is, the position of communication terminal device 500 is assumed to be a position within a predetermined range (for example, a radius of 2 meters) from the installation position of video display device 600. In this case, the process proceeds to step S315.

  Since the processing after step S315 is the same as that described in the first embodiment, detailed description will not be repeated. Through the processing after step S315, reproduction instruction data for reproducing the reproduction target content is generated and transmitted to the video display device 600. The video display device 600 reproduces the reproduction target content by receiving the reproduction instruction data.

  As described above, in the present embodiment, when the position of communication terminal device 500 is within a predetermined range (for example, a radius of 2 meters) from the installation position of video display device 600, that is, communication terminal device. Only when the position 500 is in the vicinity of the installation position of the video display device 600, the video display device 600 can play back the playback target content. That is, when the position of the communication terminal device 500 is not in the vicinity of the installation position of the video display device 600, unauthorized reproduction of the content to be played can be prevented.

  Therefore, the content can be easily reproduced while preventing unauthorized reproduction of the content.

  Note that the date / time information acquisition process M in step S315 in FIG. 32 may be performed between step S320 and step S322, similarly to the process in FIG. Also in this case, the same effect as in the present embodiment can be obtained.

<Second Embodiment>
Next, content to be played back (hereinafter referred to as “playback”) is displayed on a video display device 600 (hereinafter also referred to as “video display device A”) far away from the position of communication terminal device 500 (hereinafter also referred to as “communication terminal device A”). In the video display device 600 (hereinafter also referred to as video display device B) in the vicinity of the communication terminal device A. Processing for reproducing the target content (hereinafter also referred to as content reproduction processing R) will be described.

  Since the network system in the present embodiment is similar to network system 1000 in the first embodiment, detailed description will not be repeated. The configuration of each of communication terminal device 500, video display device 600, and service server 800A is the same as that described in the first embodiment, and therefore detailed description thereof will not be repeated.

  Here, referring to FIG. 1, it is assumed that video display device A is video display device 600 included in home network 501.1. The video display device B is assumed to be a video display device 600 included in the home network 501.2.

  Next, in a state where the communication terminal device A exists in the home network 501.1, the initial setting process T in FIG. 9, the content reservation process T, the content reservation process M, and the content reservation process S in FIG. Suppose that communication terminal device A, video display device A, and service server 800A are used.

  Accordingly, it is assumed that the service use necessary data TD110 of FIG. 13, the service enjoyment data SD300 of FIG. 16, and the content related data CTD400C of FIG. 25 are stored in the storage unit 520 of the communication terminal apparatus A. In addition, it is assumed that the storage unit 620 of the video display device A stores content-related data CTD400 in FIG. 18 and content specified by the content ID indicated in the content-related data CTD400. Here, the content specified by the content ID indicated in the content-related data CTD 400 stored in the storage unit 620 is the reproduction target content.

  The user of the communication terminal device A brings the communication terminal device A from the home network 501.1 (for example, home network) into the home network 501.2 (for example, another person's home network). To do. In this case, the communication terminal device A is the communication terminal device 500 included in the home network 501.2. That is, the communication terminal device A is in the vicinity of the video display device B.

  Hereinafter, the processing performed by the communication terminal apparatus A in the content reproduction processing R is also referred to as content reproduction processing MRA. In the content reproduction process R, the process performed by the video display device B is also referred to as a content reproduction process TRB. Further, in the content reproduction process R, the process performed by the video display device A is also referred to as a content reproduction process TRA.

  In communication terminal apparatus A, control unit 510 executes the content management program, and content detail image MG600A of FIG. 28 generated based on content-related data CTD400C is displayed on display unit 530.

  FIG. 33 is a flowchart of content reproduction processing MRA, content reproduction processing TRB, and content reproduction processing TRA. Referring to FIG. 33, in the content reproduction process MRA, first, the process of step S411 is performed.

  In step S411, control unit 510 determines whether or not there is a reproduction operation M. The reproduction operation M is an interface operation M for pressing the button image MBG680A. If YES in step S411, the process proceeds to step S412. On the other hand, if NO at step S411, the process at step S411 is performed again.

  Here, the content to be reproduced by the reproduction operation M is the content to be reproduced. Here, it is assumed that the reproduction target content is a high-resolution content specified by the content ID indicated in the content-related data CTD400C. It is assumed that the playback target content is stored in the storage unit 620 of the video display device A as described above. Here, assuming that there is a reproduction operation M, the process proceeds to step S412.

  In step S412, position information acquisition processing MR is performed. In the position information acquisition process MR, the control unit 510 acquires the GPS position information described above from the communication unit 566. Here, the acquired GPS position information indicates the longitude and latitude of the communication terminal device A.

  As an example, it is assumed that the longitude and latitude indicated by the GPS position information are X1 'and Y1', respectively. Here, the longitude X1 ′ indicates that the longitude indicating the installation position of the video display device A shown in the service use necessity data TD110 of FIG. 13 is a predetermined distance (for example, 20 meters) or more from the position of 135 degrees 40 minutes east longitude. It is assumed that the value indicates a position. The latitude Y1 ′ is a position where the latitude indicating the installation position of the video display device A shown in the service use necessity data TD110 in FIG. 13 is a predetermined distance (for example, 20 meters) or more from the position of 34 degrees 25 minutes north latitude. Is a value indicating. Then, the process proceeds to step S413.

  In step S413, it is determined whether or not the position of the communication terminal apparatus A is outside the predetermined range from the installation position of the video display apparatus A included in the home network 501.1. That is, it is determined whether or not the position of the communication terminal apparatus A is a position outside the home network 501.1 (for example, outside the home).

  Specifically, the control unit 510 indicates that the longitude X1 ′ is a value indicating a position of a predetermined distance (for example, 20 meters) or more from the position of the longitude indicated in the service use necessity data TD110 of FIG. , It is determined whether or not the latitude Y1 ′ is a value indicating a position of a predetermined distance (for example, 20 meters) or more from the position of the latitude indicated in the service use necessity data TD110. If YES in step S413, the process proceeds to step S414. On the other hand, if NO at step S413, the content reproduction processing MRA ends.

  Here, the longitude X1 ′ is a value indicating a position of a predetermined distance (for example, 20 meters) or more from the position of the longitude indicated in the service use necessary data TD110, and the latitude Y1 ′ is the service use necessary data. It is assumed that the value is a value indicating a position equal to or greater than a predetermined distance (for example, 20 meters) from the position of latitude indicated by TD110. That is, the position of the communication terminal apparatus A is assumed to be a position (for example, outside the house) outside a predetermined range (for example, a radius of 20 meters) from the installation position of the video display apparatus A. In this case, the process proceeds to step S414.

  In step S414, a device detection process M is performed. In device detection processing M, control unit 510 detects a device capable of data communication by wireless communication. Here, the wireless communication is, for example, communication using Bluetooth (registered trademark). When a device capable of data communication is detected, the process proceeds to step S415.

  Here, it is assumed that the video display device B is detected as a device capable of data communication. If no device capable of data communication is detected, the process of step S414 is repeated.

  In step S415, reproduction instruction data generation processing MR is performed. The reproduction instruction data generation process MR is a process for generating the reproduction instruction data R. The reproduction instruction data R is data for instructing the video display device B to reproduce the content to be reproduced.

  In the reproduction instruction data generation process MR, the control unit 510 uses the service use necessary data TD110 in FIG. 13, the service enjoyment data SD300 in FIG. 16, and the content related data CTD400C in FIG. 25 as reproduction instruction data R. The following reproduction instruction data PLD700 is generated. Then, the process of step S415 ends.

  FIG. 34 shows reproduction instruction data PLD 700 as an example. Referring to FIG. 34, the description of each item shown in reproduction instruction data PLD 700 is for service use necessity data TD110 in FIG. 13, service enjoyment data SD300 in FIG. 16, and content related data CTD400C in FIG. Since it is included in the above description, detailed description will not be repeated.

Referring again to FIG. 33, after the process of step S415, the process proceeds to step S416.
In step S416, control unit 510 transmits reproduction instruction data PLD700 generated as reproduction instruction data R to video display apparatus B. Then, the process proceeds to step S417.

  In step S417, control unit 510 sets communication terminal apparatus A to the remote control mode. Then, the process of step S417 ends.

  In the content reproduction process TRB performed by the video display device B, first, the process of step S441 is performed.

  In step S441, control unit 610 of video display device B determines whether or not reproduction instruction data R has been received. If YES in step S441, the process proceeds to step S442. On the other hand, if NO at step S441, the process at step S441 is performed again. Here, assuming that the reproduction instruction data PLD700 as the reproduction instruction data R has been received, the process proceeds to step S442.

  In step S442, request instruction data generation processing TR is performed. The request instruction data generation process TR requests the content (video display device A) specified by the content reception device ID indicated by the reproduction instruction data PLD700 for the content specified by the content ID indicated by the received reproduction instruction data PLD700. It is data to do.

  In the request instruction data generation process TR, the control unit 610 generates the following request instruction data RD800 based on the received reproduction instruction data PLD700 and information of the own device. Then, the process of step S442 ends.

  FIG. 35 is a diagram showing request instruction data RD800 as an example. Referring to FIG. 35, request instruction data RD800 has items of “IP address”, “reproducible format”, “resolution”, and “line speed” added as compared with reproduction instruction data PLD700 of FIG. Is different. Other than that, it is the same as reproduction instruction data PLD700, and therefore detailed description will not be repeated.

  In the request instruction data RD800, “IP address” is a global IP address set in the video display device B. The “reproducible format” is a moving image format that can be reproduced by the video display device B. “Resolution” is the resolution of the display unit 630 of the video display device B. In this case, the resolution of the display unit 630 of the video display device B is horizontal 1024 (dots) × vertical 768 (dots). The “line speed” is the maximum speed when the video display apparatus B performs data communication with the network 70.

Referring to FIG. 33 again, after the process of step S442, the process proceeds to step S443.
In step S443, control unit 610 transmits the generated request instruction data RD800 to video display apparatus A specified by the content reception apparatus ID indicated in reproduction instruction data PLD700 in FIG. Then, the process of step S443 ends.

  In the content reproduction process TRA performed by the video display device A, first, the process of step S461 is performed.

  In step S461, the control unit 610 of the video display apparatus A determines whether request instruction data has been received. If YES in step S461, the process proceeds to step S462. On the other hand, if NO at step S461, the process at step S461 is performed again. Here, assuming that request instruction data RD800 has been received, the process proceeds to step S462.

  In step S462, it is determined whether request instruction data has been received from the external network. Specifically, control unit 610 determines whether received request instruction data RD800 is data received from an external network different from home network 501.1 to which video display apparatus A belongs. This determination is made based on the IP address indicated in the request instruction data RD800. If YES at step S462, control proceeds to step S463. On the other hand, if NO at step S462, the process at step S461 is performed again.

  Here, it is assumed that the IP address “111.222.111.222” indicated in the request instruction data RD800 is not an IP address assigned to a device in the home network 501.1 to which the video display device A belongs. In this case, control unit 610 determines that request instruction data RD800 has been received from the external network, and proceeds to step S463.

  In step S463, a data conversion process TA is performed. In the data conversion process TA, the request instruction data RD800 indicates the format of the content (reproduction target content) stored in the storage unit 620, which is specified by the content ID indicated in the reproduction instruction data PLD700. H. is a reproducible format. Convert to H.264 format. Note that the format of the playback target content stored in the storage unit 620 is H.264. In the case of H.264 format, format conversion is not performed.

  H. In the H.264 format conversion, when the resolution of the playback target content is a resolution other than the resolution (horizontal 1024 (dots) × vertical 768 (dots)) indicated in the request instruction data RD800, the playback target content resolution is Processing for converting to a resolution of 1024 (dots) × vertical 768 (dots) is also performed simultaneously.

  Here, it is assumed that the reproduction target content stored in the storage unit 620 is MPEG2 format content. Also, the resolution of the content to be played back is assumed to be 1920 horizontal (dots) × 1080 vertical (dots). In this case, the control unit 610 converts the MPEG-2 format playback target content into the H.264 format. In addition to conversion to the H.264 format, the resolution of the content to be reproduced is converted to horizontal 1024 (dots) × vertical 768 (dots). In the following, the converted playback target content is also referred to as converted playback target content. Then, the control unit 610 stores the converted playback target content in the storage unit 620. Then, the process proceeds to step S464.

  In step S464, an encryption process TA is performed. In the encryption process TA, the control unit 610 encrypts the converted playback target content using the encryption key. Here, the encryption key is, for example, a character string made up of numbers and alphabets. In the following, the encrypted converted playback target content is also referred to as encrypted playback target content. Then, the process proceeds to step S465.

  In step S465, control unit 610 transmits decrypted data for decrypting the encrypted playback target content to communication terminal apparatus A. Here, it is assumed that the decoded data to be transmitted is the following decoded data CD900. And the process of step S465 is complete | finished.

  FIG. 36 is a diagram showing decoded data CD900 as an example. Referring to FIG. 36, in decrypted data CD 900, “content ID” is an ID for specifying the encrypted converted playback target content. Note that the content ID of the converted playback target content is the content ID of the playback target content before being converted by the data conversion processing TA in step S463. The “encryption key” is a character string used when the converted playback target content is encrypted. The “encryption key” is, for example, a character string made up of numbers and alphabets.

  Referring to FIG. 33 again, in the reproduction instruction data generation process MR, the process proceeds to step S418 after the process of step S417.

  In step S418, a decoded data reception process M is performed. In the decoded data reception process M, the control unit 510 receives the decoded data and causes the storage unit 520 to store the received decoded data. Here, it is assumed that the received decoded data is the decoded data CD900 of FIG. Then, the process proceeds to step S418A. If the decoded data is not received, the process of step S418 is repeated until the decoded data is received.

  In step S418A, it is determined whether or not the received decrypted data is data corresponding to the reproduction target content. Specifically, control unit 510 determines whether or not the content ID indicated in the received decrypted data matches the content ID indicated in reproduction instruction data R transmitted by the process of step S416. If YES in step S418A, the flow proceeds to step S419. On the other hand, if NO at step S418A, the process at step S418 is performed again.

  Here, it is assumed that the received decoded data is the decoded data CD900 of FIG. Further, it is assumed that the reproduction instruction data R transmitted by the process of step S416 is the reproduction instruction data PLD700 of FIG. In this case, YES is determined in step S418A, and the process proceeds to step S419.

  In step S419, control unit 510 transmits received decoded data CD900 to video display apparatus B. Then, the content reproduction process MRA ends.

  In the content reproduction process TRB performed by the video display device B, the process proceeds to step S444 after the process of step S443.

  In step S444, a decoded data reception process TB is performed. In the decoded data reception process TB, the control unit 610 receives the decoded data CD900, and stores the received decoded data CD900 in the storage unit 620. When the decoded data is stored in the storage unit 620, the process of step S444 ends. If the decoded data is not received, the process of step S444 is repeated until the decoded data is received.

  In the content reproduction process TRA performed by the video display apparatus A, the process proceeds to step S466 after the process of step S465.

  In step S466, control unit 610 transmits the encrypted reproduction target content to video display apparatus B specified by IP address “111.222.111.222” indicated in received request instruction data RD800. Then, the content reproduction process TRA ends.

  In the content reproduction process TRB performed by the video display device B, the process proceeds to step S445 after the process of step S444.

  In step S445, encrypted content reception processing TB is performed. In the encrypted content reception process TB, the control unit 610 receives the encrypted reproduction target content and causes the storage unit 620 to store the received encrypted reproduction target content. Then, the control unit 610 decrypts the encrypted reproduction target content stored in the storage unit 620 with the encryption key “AABB11” indicated in the decryption data CD900. The decrypted encrypted playback target content is the converted playback target content described above. Then, the process proceeds to step S446.

  In step S446, a reproduction process TB is performed. In the reproduction process TB, the control unit 610 reproduces the converted reproduction target content and causes the display unit 630 to display the image of the converted reproduction target content being reproduced.

  When the control unit 610 receives a remote control signal for controlling playback of the converted playback target content from the communication terminal apparatus A in the remote control mode during playback of the converted playback target content, the control unit 610 The reproduction of the converted reproduction target content is controlled according to the received remote control signal.

  For example, when the control unit 610 receives a remote control signal for temporarily stopping the converted playback target content from the communication terminal device A, the control unit 610 temporarily stops the converted playback target content being played back. When the reproduction of the converted reproduction target content is finished, the process of step S446 is finished, and the content reproduction process TRB is finished.

  As described above, in the present embodiment, when the playback target content is stored in the video display device A located far away from the position of the communication terminal device A, the communication terminal device A The reproduction instruction data PLD 700 as R is transmitted to the video display device B in the vicinity of the communication terminal device A. Then, the video display device B requests the video display device A for the content to be played back. In response to the request for the content to be played back, the video display device A sets the playback target content to the converted playback target content converted into a format that can be played back by the video display device B. In the video display device B, the encrypted reproduction target content is encrypted by using the encryption key.

  The video display device B transmits to the communication terminal device A decrypted data CD900 including the encryption key used for encrypting the converted playback target content. The communication terminal apparatus A transmits the decoded data CD900 to the video display apparatus B only when it is determined that the received decoded data CD900 is data corresponding to the reproduction target content. In addition, the video display device A transmits the encrypted playback target content to the video display device B. Then, the video display device B uses the received decrypted data CD900 to decrypt the encrypted playback target content to obtain the converted playback target content. Then, the video display device B plays back the converted playback target content.

  Therefore, even if the playback target content is stored in the video display device A that is far from the position of the communication terminal device A, the video display device B in the vicinity of the communication terminal device A can The converted reproduction target content obtained by converting the content can be reproduced.

  Also, the communication terminal apparatus A transmits the decoded data CD900 to the video display apparatus B only when it is determined that the received decoded data CD900 is data corresponding to the reproduction target content. Therefore, it is possible to prevent the reproduction target content or the converted reproduction target content from being illegally reproduced.

  That is, even if the content to be played is stored in the video display device A that is far away from the position of the communication terminal device A, the content in the vicinity of the communication terminal device A can be prevented while preventing unauthorized playback of the content. In the video display device B, the converted playback target content can be played back.

(Function block diagram)
FIG. 37 is a functional block diagram of the control unit 510, the control unit 610, and the control unit 810 in the first embodiment and the first and second modifications of the first embodiment. Referring to FIG. 37, control unit 510 includes a second reception unit 511 and a second transmission unit 513. The control unit 610 includes a first reception unit 611 and a reproduction unit 613. The control unit 810 includes a first transmission unit 811.

  The first transmission unit 811 transmits the content to the video display device 600 and transmits permission date information indicating the reproduction permission date when content reproduction is permitted to the communication terminal device 500.

  The first reception unit 611 receives content transmitted from the first transmission unit 811. The received content is stored in the storage unit 620.

  The second reception unit 511 receives permission date information transmitted from the first transmission unit 811. The received permission date information is stored in the storage unit 520. The second transmission unit 513 transmits a reproduction instruction for reproducing the content stored in the storage unit 620 to the video display device 600 based on the reproduction permission date and time indicated by the permission date and time information.

  When the first reception unit 611 receives a reproduction instruction, the reproduction unit 613 reproduces the content stored in the storage unit 620 that is specified by the received reproduction instruction.

  Note that all or part of the second reception unit 511 and the second transmission unit 513 included in the control unit 510 may be configured by hardware. All or part of the first receiving unit 611 and the reproducing unit 613 included in the control unit 610 may be configured by hardware. Further, the first transmission unit 811 included in the control unit 810 may be configured by hardware.

  FIG. 38 is a functional block diagram of a control unit 510 and a control unit 810 as other examples in the first embodiment and the first and second modifications of the first embodiment. Referring to FIG. 38, control unit 510 includes a reception unit 511A, a determination unit 513A, and a generation unit 515A. Control unit 810 includes a date / time information transmission unit 811A.

  The date / time information transmission unit 811A transmits date / time information for correcting the date / time to the communication terminal device 500.

  The receiving unit 511A receives date / time information. The determination unit 513A determines whether or not the date and time indicated by the date and time information is after the reproduction permission date and time permitted to reproduce the content to be reproduced, which is indicated by the permission date and time information. If the determination unit 513A determines that the date / time indicated by the date / time information is after the reproduction permission date / time indicated by the permission date / time information, the generation unit 515A generates reproduction information for reproducing the content to be reproduced.

  Note that all or part of the reception unit 511A, the determination unit 513A, and the generation unit 515A included in the control unit 510 may be configured by hardware. Further, the date / time information transmission unit 811A included in the control unit 810 may be configured by hardware.

  FIG. 39 is a functional block diagram of a control unit 510 and a control unit 610 as other examples in the second modification of the first embodiment. Referring to FIG. 39, control unit 510 includes a position information acquisition unit 511B, a generation unit 513B, and a transmission unit 515B. Control unit 610 includes a receiving unit 611B and a reproducing unit 613B.

  The position information acquisition unit 511B acquires terminal position information indicating the position of the communication terminal device 500. The generation unit 513B generates reproduction information for reproducing the reproduction target content when the position of the communication terminal device 500 indicated by the terminal position information is within a predetermined range from the position registered in advance. The transmission unit 515B transmits the reproduction information to the video display device 600.

  The receiving unit 611B receives reproduction information. The reproduction unit 613B reproduces the reproduction target content based on the received reproduction information.

  Note that all or part of the position information acquisition unit 511B, the generation unit 513B, and the transmission unit 515B included in the control unit 510 may be configured by hardware. In addition, all or a part of the reception unit 611B and the reproduction unit 613B included in the control unit 610 may be configured by hardware.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure which shows the structure of the network system in this Embodiment. It is the figure which showed the external appearance of the communication terminal device from the front. It is the figure which showed the external appearance of the communication terminal device from the back surface. It is the block diagram which showed the internal structure of the communication terminal device. It is the block diagram which showed the internal structure of the video display apparatus. It is the block diagram which showed the internal structure of the service server. It is a figure which shows the remote control image as an example. It is a flowchart of the operation determination process M and the control signal corresponding process T. 10 is a flowchart of an initial setting process T. It is a figure which shows the initial stage image as an example. It is a figure which shows the service utilization required data as an example. It is a figure which shows the positional data as an example. It is a figure which shows the service utilization required data as an example. It is a figure which shows the web browser image as an example. It is a figure which shows the user data as an example. It is a figure which shows the service enjoyment data as an example. It is a figure which shows the service enjoyment data as an example. It is a figure which shows the content relevant data as an example. 5 is a flowchart of a content reservation process T, a content reservation process M, and a content reservation process S. It is a figure which shows the content relevant data as an example. It is a figure which shows the alerting | reporting image as an example. It is a figure which shows the content relevant data as an example. It is a figure which shows the reservation completion image as an example. It is a figure which shows the instruction data as an example. It is a figure which shows the content relevant data as an example. It is a figure which shows the content management image as an example. It is a figure which shows the content detailed image as an example. It is a figure which shows the content detailed image as an example. 4 is a flowchart of a content reproduction process T, a content reproduction process M, and a content reproduction process S. It is a figure which shows the reproduction | regeneration instruction | indication data as an example. 4 is a flowchart of a content reproduction process T, a content reproduction process MN, and a content reproduction process S. It is a flowchart of content reproduction processing TA, content reproduction processing MA, and content reproduction processing SA. It is a flowchart of content reproduction processing MRA, content reproduction processing TRB, and content reproduction processing TRA. It is a figure which shows the reproduction | regeneration instruction | indication data as an example. It is a figure which shows the request instruction data as an example. It is a figure which shows the decoding data as an example. It is a functional block diagram of three different control parts in the first embodiment and the first and second modifications of the first embodiment. It is a functional block diagram of two different control parts as other examples in the 1st embodiment and the modifications 1-2 of the 1st embodiment. It is a functional block diagram of two different control parts as other examples in modification 2 of a 1st embodiment.

Explanation of symbols

  50 communication unit, 70 network, 180, 180A, 180B program, 300 remote control, 500 communication terminal device, 510, 610, 810 control unit, 520, 620, 820 storage unit, 530, 630 display unit, 540 input unit, 555 555A recording medium, 600 video display device, 800A service server, 800S search server, 800W Web server, 1000 network system.

Claims (8)

A content playback system for playing back playback target content, including a terminal device, a playback device, a server, and a content distribution device ,
The server includes date and time information transmitting means for transmitting date and time information for correcting date and time to the terminal device, which is information based on a network time protocol.
The terminal device
Storage means for receiving and storing permission date and time information indicating a playback permission date and time when reproduction of the content to be played is permitted from the content distribution device ;
Receiving means for receiving the date and time information;
Determination means for determining whether or not the date and time indicated by the date and time information received by the receiving means is after the reproduction permission date and time indicated by the permission date and time information;
Generation means for generating reproduction instruction information for reproducing the reproduction target content when the determination means determines that the date and time indicated by the date and time information is after the reproduction permission date and time indicated by the permission date and time information When,
Transmission means for transmitting the reproduction instruction information generated by the generation means to the reproduction device,
The playback device
Receiving means for receiving the reproduction instruction information;
Content storage means for storing the content to be reproduced;
A content reproduction system comprising: a reproduction unit that reproduces the reproduction target content stored in the content storage unit when the reception unit receives the reproduction instruction information. The terminal device performs communication with the server for data communication to acquire the date / time information in order to cause the determination unit to determine whether the date / time indicated by the date / time information is after the reproduction permission date / time. Further,
The generation unit generates the reproduction instruction information when the determination unit determines that the date and time indicated by the date and time information acquired by data communication performed by the communication unit is after the reproduction permission date and time. The content reproduction system described in 1. Wherein the reproduction target content stored in the content storage unit, the content distribution apparatus, a content that is transmitted to the reproducing apparatus, a content reproduction system according to claim 1 or 2 before Symbol reproducing apparatus. The generating means, the position of the terminal device in advance if the registered position is within a predetermined range, generates the reproduction instruction information, the content reproduction system according to any one of claims 1-3. Terminal equipment included in the content reproduction system according to claim 1 or 2. A terminal device included in the content reproduction system according to claim 1 or 2,
The generation unit generates the reproduction instruction information when the position of the terminal device is within a predetermined range from a previously registered position. A content playback method that includes a terminal device, a playback device, a server, and a content distribution device, and that is executed in a content playback system for playing back playback target content.
The server performs the step of transmitting date and time information for correcting date and time, which is information based on a network time protocol, to the terminal device;
The terminal device is
Receiving and storing permission date and time information indicating a reproduction permission date and time when reproduction of the content to be played is permitted from the content distribution device ;
Receiving the date and time information;
Determining whether the date and time indicated by the date and time information received by the receiving step is after the reproduction permission date and time indicated by the permission date and time information;
A step of generating reproduction instruction information for reproducing the reproduction target content when the determination step determines that the date and time indicated by the date and time information is after the reproduction permission date and time indicated by the permission date and time information; When,
Executing the step of transmitting the reproduction instruction information generated by the generating step to the reproduction device;
The playback device is
Receiving the reproduction instruction information;
Storing the playback target content;
A content playback method, wherein the receiving step receives the playback instruction information, and executes the step of playing back the playback target content stored in the storing step. A step of performing data communication with the server to acquire the date / time information in order for the terminal device to determine whether or not the date / time indicated by the date / time information is after the reproduction permission date / time. And run further
The generating step generates the reproduction instruction information when the determining step determines that the date and time indicated by the date and time information acquired by the data communication performed by the data communication step is after the reproduction permission date and time. The content reproduction method according to claim 7 .

Images