JP5063045B2 - Communication terminal device, video display system, and control program - Google Patents

Description

  The present invention relates to a communication terminal device, a video display system, and a control program, and more particularly to a communication terminal device, a video display system, and a control program that perform processing in cooperation with a device that receives content.

  In recent years, devices conforming to a standard (hereinafter also referred to as inter-device communication standard) for enabling data communication with each other among a plurality of types of devices in a home are becoming widespread. The inter-device communication standard is, for example, a DLNA (Digital Living Network Alliance) standard. Devices conforming to the inter-device communication standard are, for example, a television receiver, an HDD (Hard disk drive) recorder, an audio device, and the like. In addition, a device compliant with the inter-device communication standard is generally connectable to a network such as the Internet via a network device such as a router.

  In general, a device that conforms to a communication standard between different devices that can be connected to a network is a device that can be operated by a remote controller. Therefore, it is required to operate a plurality of types of devices that can be operated with a remote controller and can be connected to a network with a single device.

  In JP 2002-135810 A (Patent Document 1), a communication terminal device such as a mobile phone that can be connected to a network such as the Internet and has a very high penetration rate operates a device that can be connected to the network. A technology used as a remote controller for the above (hereinafter also referred to as a first prior art) is disclosed.

  Japanese Patent Laid-Open No. 2001-275173 (Patent Document 2) displays an operation screen corresponding to the type of device to be operated (hereinafter also referred to as an operated device) on the operation side device, A technique for using a device as a remote controller for operating an operated device (hereinafter also referred to as a second prior art) is disclosed.

Japanese Patent Laid-Open No. 2001-136585 (Patent Document 3) discloses a technique (hereinafter referred to as “No. 1”) that transmits information on the arrangement positions of a plurality of hyperlink character strings in a Web page displayed on a television receiver to a remote controller. 3) is also disclosed.
JP 2002-135810 A JP 2001-275173 A JP 2001-136585 A

  Recently, as in the first to third prior arts, a scene in which a communication terminal device such as a mobile phone and a video display device such as a television are used in cooperation is increasing. And the scene which enjoys various services from a content site is also increasing by using said two apparatuses in cooperation. The service is, for example, a service in which a video display device receives content from a content site. In this case, the video display device displays the received content.

  In a video display device, for example, when a user who is viewing content wants to know the meaning or explanation of a word displayed in the content, the meaning of the word is determined using the dictionary function of the communication terminal device at hand. Or, the explanation may be checked. In such a case, there is a problem that it takes the user to input a word.

  In addition, if the dictionary data of the communication terminal device does not contain information such as the meaning or explanation of the word that the user wants to know (hereinafter also referred to as explanation information), the trouble of accessing the Internet as a network and performing search processing is reduced. There is a problem of being over.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a communication terminal device that can refer to the explanation information of a word without taking unnecessary effort.

  Another object of the present invention is to provide a video display system capable of referring to word explanation information without wasteful effort.

  Still another object of the present invention is to provide a control program capable of referring to word explanation information without wasteful effort.

  In order to solve the above-described problem, according to one aspect of the present invention, a display unit for displaying content is provided, and secondary information corresponding to the content displayed on the display unit is transmitted to a device capable of data communication. A communication terminal device capable of data communication with a video display device, wherein the communication terminal device stores storage means for storing dictionary data including explanation information for each of a plurality of words, and secondary information transmitted from the video display device. Receiving means for receiving, searching means for searching for explanation information corresponding to the secondary information from the dictionary data based on the received secondary information, and explanation information corresponding to the secondary information was not searched by the searching means In this case, the acquisition means for acquiring the description information corresponding to the secondary information not searched from the network, and the display means for displaying the description information acquired from the network by the acquisition means Equipped with a.

  Preferably, the secondary information includes a keyword, and the search unit searches the dictionary data for explanation information corresponding to the keyword included in the secondary information.

  Preferably, the secondary information includes the genre information of the content displayed on the display unit, and when the description information corresponding to the keyword is searched by the search unit, the secondary information is obtained from the description information corresponding to the searched keyword. If the genre-related keywords related to the genre information included in the genre information are extracted and the description information corresponding to the keyword is not searched by the search means, the genre included in the secondary information from the description information acquired from the network by the acquisition means Extraction means for extracting genre-related keywords related to information, and display means for displaying the extracted genre-related keywords, and the extracted genre-related keywords are for acquiring information related to the extracted genre-related keywords. Associated with the network address.

  Preferably, the apparatus further comprises related information acquisition means for acquiring information related to the extracted genre-related keyword from the network using a network address in response to an instruction input, and the display means includes the related information acquisition means. Display the acquired information.

  According to another aspect of the present invention, there is provided a video display system including a communication terminal device and a video display device, the video display device displaying a content on the first display means and the first display means. Transmission means for transmitting secondary information corresponding to the content being transmitted to the communication terminal apparatus, the communication terminal apparatus storing storage means for storing dictionary data including explanation information for each of a plurality of words, and video display Receiving means for receiving secondary information transmitted by the transmitting means of the apparatus; search means for searching for explanation information corresponding to the secondary information from dictionary data based on the received secondary information; If the description information corresponding to the next information is not searched, the acquisition means for acquiring the description information corresponding to the secondary information not searched from the network, and the acquisition means from the network And a second display means for displaying the obtained been described information.

  Preferably, the secondary information includes a keyword, and the search unit searches the dictionary data for explanation information corresponding to the keyword included in the secondary information.

  According to still another aspect of the present invention, a display unit for displaying content is provided, and data communication is possible with a video display device that transmits secondary information corresponding to the content displayed on the display unit to a device capable of data communication. A control program for causing a computer to execute, wherein the computer is provided with a storage unit that stores dictionary data including explanation information for each of a plurality of words, and an information display unit that displays the information. Includes a reception step of receiving secondary information transmitted from the video display device, a search step of searching for explanation information corresponding to the secondary information from dictionary data based on the received secondary information, and a search step When the explanation information corresponding to the secondary information is not searched, the explanation information corresponding to the secondary information not searched is acquired from the network. It comprises a resulting step and a display step of displaying the information display unit the description information acquired from the network by acquiring step.

  The communication terminal device according to the present invention searches the dictionary data for word explanation information corresponding to the secondary information corresponding to the content displayed on the display unit of the video display device, and when the explanation information is not retrieved, The description information is acquired from the network and displayed by the display means.

  Therefore, even if the description information corresponding to the secondary information corresponding to the content is not in the dictionary data, the user can refer to the description information without the trouble of accessing the network and performing a search process. it can. That is, there is an effect that it is possible to refer to the explanation information of the word without taking unnecessary time.

  The video display system according to the present invention includes a communication terminal device and a video display device. The communication terminal device searches the dictionary data for word explanation information corresponding to the secondary information corresponding to the content displayed on the first display means of the video display device, and if the explanation information is not retrieved, the explanation information Is acquired from the network and displayed by the second display means.

  Therefore, even if the description information corresponding to the secondary information corresponding to the content is not in the dictionary data, the user can refer to the description information without the trouble of accessing the network and performing a search process. it can. That is, there is an effect that it is possible to refer to the explanation information of the word without taking unnecessary time.

  The control program according to the present invention searches the dictionary data for word explanation information corresponding to the secondary information corresponding to the content displayed on the display unit of the video display device. Information is acquired from the network, and the explanation information is displayed on the information display unit.

  Therefore, even if the description information corresponding to the secondary information corresponding to the content is not in the dictionary data, the user can refer to the description information without the trouble of accessing the network and performing a search process. it can. That is, there is an effect that it is possible to refer to the explanation information of the word without taking unnecessary time.

  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.

<First Embodiment>
FIG. 1 is a diagram illustrating a configuration of a network system 1000 according to the present embodiment. With reference to FIG. 1, a network system 1000 includes 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 PDA (Personal Digital Assistance). Communication terminal device 500 has a telephone function. Communication terminal device 500 may not have a telephone function. Communication terminal device 500 is not limited to a PDA, and may be any device (for example, a PC (Personal Computer) or a mobile phone) as long as it has a communication function and is portable.

  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 liquid crystal television. 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 transmitting device is, for example, an STB (Set Top Box), HDD recorder, DVD (Digital Versatile Disc) recorder, or the like.

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

  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 any one of IEEE802.11a, IEEE802.11b, and IEEE802.11g, which are wireless LAN standards. Note that the radio technology is not limited to a technology based on any of IEEE 802.11a, IEEE 802.11b, and IEEE 802.11g, and may be other radio technologies. 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 communication unit 50 further has a communication interface function (for example, a router function) using Ethernet (registered trademark). 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.

  The service server 800A stores dedicated content for streaming distribution and video on demand, and distributes or downloads the moving image data requested for distribution to the apparatus requested for distribution.

  In addition, the service server 800A has an authentication function for determining whether or not distribution is possible for a user or device that has requested distribution.

  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. It is assumed that 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, at a maximum speed of 100 Mbps.

  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.

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 that uses either an LCD panel (Liquid Crystal Display Panel) or an organic EL display panel (Organic Electroluminescence 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 horizontal 480 (dots) × vertical 640 (dots). The resolution of the display unit 530 is not limited to horizontal 480 (dots) × vertical 640 (dots), and may be another resolution (for example, horizontal 240 (dots) × vertical 320 (dots)). .

  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.

  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 starting a call by a short press operation when a call is made to the communication terminal device 500. The function button 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 button 543B is a button for switching the power supply of the communication terminal device 500 on and off in response to a pressing operation (hereinafter also referred to as a long pressing operation) for a long time (for example, 1 second or more) by the user. It is.

  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. 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.

  FIG. 3 is a diagram showing an appearance of the communication terminal device 500 from the left side. Referring to FIG. 3, communication terminal apparatus 500 includes a recording medium insertion unit 550A. The recording medium insertion unit 550A is a part that inserts a recording medium, which will be described later, into the communication terminal device 500.

  FIG. 4 is a diagram showing the appearance of the communication terminal device 500 from the back. With reference to FIG. 4, 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. 5 is a block diagram showing an internal configuration of communication terminal apparatus 500. FIG. 5 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. 5, 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. The control unit 510 may be any of a microprocessor, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), and other circuits having arithmetic functions.

  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 includes a RAM (Random Access Memory), an SRAM (Static Random Access Memory), a DRAM (Dynamic Random Access Memory), an SDRAM (Synchronous DRAM), a DDR-SDRAM (Double Data Rate SDRAM), and an RDRAM (Rambus Dynamic Random). (Access Memory (registered trademark)), Direct-RDRAM (Direct Rambus Dynamic Random Access Memory (registered trademark)), or any other circuit having a configuration capable of storing and 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 data compressed in MPEG (Moving Picture Experts Group) 4 format. The recorded data is not limited to data compressed in the MPEG4 format, and may be data compressed in another format. Here, other formats include, for example, MPEG1, MPEG2, H.264. H.264 or 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 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 MPEG4 format. The image data and audio data included in the decoded data are not limited to data compressed in the MPEG4 format, and may be data compressed in other formats. Here, other formats include, for example, MPEG1, MPEG2, H.264. H.264 or the like.

  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 includes a floppy (registered trademark) disk, a CF (Compact Flash (registered trademark)) card, SM (Smart Media (registered trademark)), MMC (Multi Media Card (registered trademark)), and SD (Secure Digital (registered trademark)). (Trademark)) Memory Card, Memory Stick (Registered Trademark), xD Picture Card (Registered Trademark), and non-volatile memory other than the above.

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) 1.1 or USB 2.0 standard. Note that the standard of the communication interface for performing serial transfer is not limited to USB 1.1 or USB 2.0, but 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 standard based on Centronics (registered trademark) or a standard of IEEE 1284 (Institute of Electrical and Electronic Engineers 1284). 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 (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 any one of IEEE802.11a, IEEE802.11b, and IEEE802.11g, which are wireless LAN standards. Note that the radio technology is not limited to a technology based on any of IEEE 802.11a, IEEE 802.11b, and IEEE 802.11g, and may be other radio technologies. Therefore, the communication unit 562 can perform data communication with the communication unit 50 wirelessly. For example, the communication unit 562 sends a recording data transmission request to the video display device 600 via the communication unit 50 and transmits the recorded recording. Data can be received and streaming playback can be performed.

  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.

  Therefore, communication terminal device 500 according to the present embodiment can also download a program from network 70 via communication unit 50 and communication unit 562 and store the program in storage unit 520. 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.

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.

  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.

  The control unit 510 performs data communication with the LED 576 and the imaging unit 578 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.

  Communication terminal device 500 further includes a vibration unit 579. The vibration unit 579 has a function of vibrating the communication terminal device 500 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.

  Communication terminal device 500 further includes RFID 580. The RFID 580 is an integrated circuit based on RFID (Radio Frequency Identification) having a security function such as Felica (registered trademark), and communicates with a reading terminal (not shown) in a non-contact manner. The RFID 580 outputs data such as a terminal ID based on a control instruction from the control unit 510.

Next, the video display device 600 will be described in detail.
FIG. 6 is a diagram showing the external appearance of the video display device 600 from the front. Referring to FIG. 6, 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 using any one of an LCD panel, a CRT (Cathode Ray Tube), an FED panel (Field Emission Display Panel), a PDP (Plasma Display Panel), and an organic EL display panel. Note that the display unit 630 may be a device using a panel with a display method other than the above. 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 a resolution of horizontal 1366 (dots) × vertical 768 (dots) at which a PC image can be displayed. The resolution of the display unit 630 is not limited to horizontal 1366 (dots) × vertical 768 (dots), but may be other resolutions (for example, 1024 × 768). The aspect ratio of the display unit 630 displaying the video is 16: 9. The aspect ratio is not limited to 16: 9 and may be 4: 3.

  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.

  FIG. 7 is a block diagram showing an internal configuration of the video display device 600. FIG. 7 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. 7, 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, various other 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, other formats include, for example, MPEG1, H.264, and the like. 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, other formats include, for example, MPEG1, H.264, and the like. 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 includes a BD (Blu-ray Disc), an HD-DVD (High-Definition Digital Versatile Disc), a DVD-ROM (Digital Versatile Disk Read Only Memory), a DVD-R (Digital Versatile Disk Recordable), and a DVD-RAM. (Digital Versatile Disk Random Access Memory), DVD + RW (Digital Versatile Disk Re-Writable), DVD-RW, CD-ROM (Compact Disk Read Only Memory), MO (Magneto Optical Disk), floppy (registered trademark) disk, CF card (Registered trademark), SM (Smart Media (registered trademark)), MMC (registered trademark), SD memory card (registered trademark), Memory Stick (registered trademark), xD Picture Card (registered trademark), USB memory, magnetic tape, and the above Any other nonvolatile memory may be used.

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, when there is a request for transmission of the recorded data stored in the storage unit 620 to the communication unit 662 via the communication unit 50, transmission or streaming distribution is performed to the device that requested the recorded data.

  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.

  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.

  FIG. 8 is a block diagram showing the internal configuration of the service server 800A. Referring to FIG. 8, 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 180 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.

  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. 9 is a diagram showing a remote control image MG100 as an example. Referring to FIG. 9, button images MBG110, MBG120, and MBG130 are arranged in remote control image MG100. Each of button images MBG110, MBG120, and MBG130 is subjected to a pressing process by interface operation M, so that control unit 510 Is a button image for transmitting a corresponding remote control signal to be described later to the video display device 600 using the communication unit 560.

  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. The power remote control signal is a remote control signal for switching between a state where the power of the video display device 600 is on and a state where the power of the video display device 600 is off.

  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 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”.

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

  The button image MBG 170 is a button image for transmitting a set image display remote control signal to the video display device 600 by being pressed by the interface operation M. The setting image display remote control signal is a remote control signal for causing the display unit 630 of the video display device 600 to display a setting image to be described later. Button image MBG 180 is a button image for transmitting a detailed remote control image display remote control signal to video display device 600 by being pressed by interface operation M. The detailed remote control image display remote control signal is a remote control signal for causing the display unit 630 of the video display device 600 to display a detailed remote control image. The detailed remote control image is an image for transmitting a remote control signal other than a remote control signal frequently used for the video display device 600 to the video display device 600.

  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.

  Next, processing in which the video display apparatus 600 receives content from the service server 800A (hereinafter also referred to as content handling processing) will be described. It is assumed that remote control image MG100 is displayed on display unit 530 of communication terminal device 500. In this case, it is assumed that communication terminal apparatus 500 is set to the remote control mode.

  In the present embodiment, it is assumed that storage unit 520 of communication terminal device 500 stores dictionary data including explanation information for each of a plurality of words. Here, the explanation information is information explaining the reading, meaning, word source, example, etc. of each of a plurality of words. In the following, the word explanation information is also referred to as word explanation information. The dictionary data is, for example, term dictionary data. The dictionary data is, for example, Japanese-English dictionary data. In this case, the explanation information included in the dictionary data is an English word corresponding to the word.

  FIG. 10 is a diagram showing dictionary data D50 as an example. Referring to FIG. 10, dictionary data D50 includes word explanation information corresponding to each of a plurality of words. In the dictionary data D50, “explanation” is the above-described word explanation information corresponding to the word. The “number” is a number for managing words and word explanation information corresponding to the words.

  FIG. 11 is a flowchart of the content handling process. FIG. 11 shows processing performed in each of communication terminal device 500, video display device 600, and service server 800A.

In communication terminal device 500, first, the process of step S110 is performed.
In step S110, control unit 510 determines whether or not there is a list acquisition operation. The list acquisition operation is an operation for causing the display unit 530 to display a list of contents that can be acquired from the service server 800A. Specifically, the list acquisition operation is an interface operation M for pressing the button image MBG130 in FIG. If YES in step S110, the process proceeds to step S111. On the other hand, if NO at step S110, the process at step S110 is performed again.

  In step S111, list acquisition processing is performed. In the list acquisition process, first, control unit 510 transmits a list acquisition remote control signal as a list acquisition request to video display device 600 using communication unit 560. The list acquisition remote control signal is a remote control signal for causing the video display device 600 to acquire a list of contents that can be acquired from the service server 800A.

  In video display device 600, first, the process of step S120 is performed. In step S120, control unit 610 determines whether or not a list acquisition remote control signal as a list acquisition request has been received. If YES in step S120, the process proceeds to step S121. On the other hand, if NO at step S120, the process at step S120 is performed again.

  In step S121, list acquisition processing A is performed. In the list acquisition process A, first, the control unit 610 uses the communication unit 662 to transmit a list acquisition request A for acquiring a list of contents that can be acquired from the service server 800A to the service server 800A.

In service server 800A, first, the process of step S140 is performed.
In step S140, control unit 810 determines whether or not list acquisition request A has been received. If YES in step S140, the process proceeds to step S141. On the other hand, if NO at step S140, the process at step S140 is performed again.

  In step S141, the control unit 810 transmits the following list data D100, which is data of a distributable content list, to the device that transmitted the list acquisition request A. Thereafter, the process of step S141 ends.

  FIG. 12 is a diagram showing list data D100 as an example. Referring to FIG. 12, list data D100 includes a plurality of pieces of content information. The “management number” is a number for managing each of a plurality of pieces of content information. The “ID number” is a number for identifying content. “Title” indicates the title of the corresponding content.

  Referring to FIG. 11 again, in video display device 600, in list acquisition processing A, control unit 610 receives list data D100. When receiving the list data D100, the control unit 610 stores the list data D100 in the storage unit 620. Then, the control unit 610 generates the following list image G200 using the VDP 632 based on the list data D100, and causes the display unit 630 to display the generated list image G200.

  FIG. 13 is a diagram showing a list image G200 as an example. Referring to FIG. 13, button images BG211, BG212, BG213, BG214, BG215, BG216, BG217, BG218, and BG219 are arranged in list image G200. In each of the button images BG211, BG212, BG213, BG214, BG215, BG216, BG217, BG218, and BG219, the title of the content is displayed.

  Each of the button images BG211, BG212, BG213, BG214, BG215, BG216, BG217, BG218, and BG219 is a button image for acquiring the corresponding content from the service server 800A by being pressed.

  Note that a thumbnail image of the corresponding content may be displayed on each of the button images BG211, BG212, BG213, BG214, BG215, BG216, BG217, BG218, and BG219. The thumbnail image may be either a moving image or a still image. The thumbnail image is an image for indicating the content. The thumbnail image may be a moving image of one scene of content, for example.

  The list image G200 may be an image on which an electronic program guide generated based on EPG data is displayed. In this case, each of the button images BG211, BG212, BG213, BG214, BG215, BG216, BG217, BG218, and BG219 is a button image for acquiring a moving image of the program.

  Referring to FIG. 11 again, in list acquisition processing A in step S121, control unit 610 further transmits (transfers) received list data D100 to communication terminal device 500 using communication unit 660. . Thereafter, the process of step S121 ends.

  In communication terminal device 500, in list acquisition processing in step S111, control unit 510 further receives list data D100. When receiving the list data D100, the control unit 510 stores the list data D100 in the storage unit 520. Then, control unit 510 generates the following list image MG200 using VDP 532 based on list data D100, and causes display unit 630 to display the generated list image MG200. And the process of step S111 is complete | finished.

  FIG. 14 is a diagram showing a list image MG200 as an example. Referring to FIG. 14, content list image G210 and button images MBG170 and MBG280 are arranged in list image MG200.

  The content list image G210 is an image that displays content that can be acquired from the service server 800A as a button image. Button images MBG211, MBG212, MBG213, MBG214, MBG215, MBG216, MBG217, MBG218, and MBG219 are arranged in the content list image G210. Each of the button images MBG211, MBG212, MBG213, MBG214, MBG215, MBG216, MBG217, MBG218, and MBG219 displays the title of the content.

  Each of the button images MBG211, MBG212, MBG213, MBG214, MBG215, MBG216, MBG217, MBG218, MBG219 is pressed down by the interface operation M, and thereby the list image G200 displayed on the video display device 600 is displayed. It is a button image for transmitting a remote control signal for pressing the button image displaying the same title to the video display device 600.

  For example, when the button image MBG211 that displays the title “B movie” is pressed by the interface operation M, the control unit 510 displays the button image BG211 that displays the title “B movie” in the list image G200. A remote control signal for the pressing process is transmitted to the video display device 600.

  Since button image MBG 170 is similar to button image MBG 170 in remote control image MG100 in FIG. 9, detailed description will not be repeated. The button image 280 is a button image for causing the display unit 530 to display the image of the remote control image MG100 in FIG. 9 instead of the list image MG200 by being pressed by the interface operation M.

  Remote control image MG100 may be an image on which an electronic program guide generated based on EPG data is displayed. In this case, each of the button images MBG 211, MBG 212, MBG 213, MBG 214, MBG 215, MBG 216, MBG 217, MBG 218, and MBG 219 is a button image for acquiring a moving image of the program.

  Referring to FIG. 11 again, in communication terminal device 500, when the process of step S111 ends, the process proceeds to step S112.

  In step S112, control unit 510 determines whether or not there is a content acquisition operation. The content acquisition operation is an operation for receiving content from the service server 800A. Specifically, the content acquisition operation is an operation of pressing one of the button images MBG211, MBG212, MBG213, MBG214, MBG215, MBG216, MBG217, MBG218, and MBG219 by the interface operation M.

  If YES in step S112, the process proceeds to step S113. On the other hand, if NO at step S112, the process at step S112 is performed again. Here, it is assumed that a content acquisition operation for pressing the button image MBG212 for displaying the title “C soccer” is performed by the interface operation M, and the process proceeds to step S113. Hereinafter, the content requested to be acquired from the service server 800A by the content acquisition operation is referred to as acquisition request content.

  In step S113, control unit 510 transmits a content acquisition remote control signal as a content acquisition request to video display device 600 using communication unit 560. Then, the process of step S113 ends. In this case, the content acquisition remote control signal is a remote control signal for receiving the acquisition request content having the title “C soccer” from the service server 800A.

  In the video display device 600, when the process of step S121 ends, the process proceeds to step S122.

  In step S122, control unit 610 determines whether or not a content acquisition remote control signal as a content acquisition request has been received. If YES in step S122, the process proceeds to step S123. On the other hand, if NO at step S122, the process at step S122 is performed again. Here, it is assumed that the content acquisition remote control signal for receiving the acquisition request content with the title “C soccer” is received as the content acquisition request, and the process proceeds to step S123.

  In step S123, control unit 610 uses communication unit 662 to transmit content acquisition request A for acquiring content specified by the received content acquisition remote control signal to service server 800A from service server 800A. Thereafter, the process of step S123 ends. The content acquisition request A includes an ID number for specifying the acquisition request content. Here, it is assumed that the content acquisition request A includes an ID number “1235” for specifying the acquisition request content whose title is “C soccer”.

  In service server 800A, when the process of step S141 ends, the process proceeds to step S142.

  In step S142, control unit 810 determines whether or not content acquisition request A has been received. 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.

  In step S143, content distribution processing is performed. In the content distribution processing, the control unit 810 starts processing for streaming distribution of the acquisition request content to the video display device 600 that has transmitted the content acquisition request A. The acquisition request content may be distributed to the video display device 600 as a broadcast radio wave.

  Here, it is assumed that the acquisition request content is moving image data compressed in the MPEG2-TS (Transport Stream) format. The compression format of the moving image data is not limited to the MPEG2-TS format, and may be data compressed in another format. Here, other formats include, for example, MPEG2, H.264, and the like. H.264 or the like. Further, it is assumed that the acquisition request content is moving image data whose title is “C soccer”. The acquisition request content may be transmitted so that the video display device 600 can download the acquisition request content instead of streaming distribution.

  When the distribution of the acquisition request content ends, the process of step S143 ends, and the process of step S142 is performed again. The acquisition request content includes the following metadata. That is, the metadata is data corresponding to the acquisition request content. It is assumed that the metadata is the following metadata D200.

  FIG. 15 is a diagram illustrating metadata D200 as an example. Referring to FIG. 15, in metadata D200, “title” is the title of the acquisition request content. The “distribution source” is a content provider such as a broadcasting company that distributes the acquisition request content. “Genre” is the genre of the acquisition request content. “Performer” is a performer of the acquisition request content. If the acquisition request content is, for example, a sports program, the performer is, for example, a participating player. The “keyword” is a keyword related to the acquisition request content.

In the video display device 600, the process proceeds to step S124 after the process of step S123.
In step S124, control unit 610 executes content display processing. The content display process is a process performed independently of other processes. After the start of the content display process, the process of step S124 ends, and the process proceeds to step S125.

  In the content display process, the control unit 610 reproduces (decodes) the acquisition request content while receiving the acquisition request content from the service server 800A using the VDP 632, and an image based on the acquisition request content (hereinafter, content) Streaming playback display processing for displaying the image on the display unit 630 is also performed. In addition, the control unit 610 causes the storage unit 620 to store metadata included in the acquisition request content.

  In addition, when the reception of the acquisition request content is completed and the reproduction of the image based on the acquisition request content is ended, the content display process is ended.

  In step S125, control unit 610 transmits metadata included in the acquisition request content to communication terminal device 500. Here, it is assumed that the metadata to be transmitted is metadata D200. Thereafter, the process of step S122 is performed again.

In communication terminal device 500, the process proceeds to step S114 after the process of step S113.
In step S114, control unit 510 determines whether or not metadata has been received. If YES in step S114, the process proceeds to step S115. On the other hand, if NO at step S114, the process at step S114 is performed again. Here, assuming that the metadata D200 is received, the process proceeds to step S115.

  In step S115, dictionary search processing is performed. In the dictionary search process, control unit 510 searches word description information corresponding to each of a plurality of keywords included in the received metadata from dictionary data stored in storage unit 520. As a result of the search, when word explanation information corresponding to at least one of the plurality of keywords included in the metadata is searched, the control unit 510 determines that there is search information. As a result of the search, if the word explanation information corresponding to all of the plurality of keywords included in the metadata is not searched, the control unit 510 determines that there is no search information. Thereafter, the process proceeds to step S116. Here, it is assumed that the metadata is metadata D200. The dictionary data used for the search is dictionary data D50. Here, it is assumed that the control unit 510 determines that there is search information.

  In step S116, control unit 510 determines whether or not there is search information in the process of step S115. If YES in step S116, the process proceeds to step S118. On the other hand, if NO in step S116, control unit 510 causes display unit 530 to display an image without search information, and the processing in communication terminal apparatus 500 ends. The image without search information is, for example, an image in which a message “There is no explanation information of a term related to the content being displayed” is displayed.

  In step S118, search information display processing is performed. In the search information display process, control unit 510 uses VDP 532 to generate a term explanation display image, and displays the term explanation display image on display unit 530. Here, it is assumed that the term explanation display image displayed on the display unit 530 is the following term explanation display image MG300. The term explanation display image MG300 is an image in which the word explanation information obtained by the dictionary search process in step S115 is displayed together with the corresponding keyword. Thus, the processing in communication terminal device 500 ends.

  FIG. 16 is a diagram showing a term explanation display image MG300 as an example. Referring to FIG. 16, term explanation image MG310 is arranged in term explanation display image MG300. In the term explanation image MG310, “terms” are a plurality of keywords included in the metadata 200. “Description” is word explanation information corresponding to each of a plurality of keywords included in the metadata D200. If the word search information corresponding to the keyword is not found in the dictionary data by the dictionary search process in step S115, the “description” column corresponding to the keyword is left blank.

  As described above, according to the present embodiment, the word explanation information corresponding to the keyword related to the content included in the metadata included in the content displayed on the display unit 630 of the video display device 600 is communicated. The terminal device 500 searches from the dictionary data. Then, the word explanation information obtained by the search is displayed on the display unit 530.

  Therefore, it is possible to easily understand the keyword related to the content with the communication terminal device 500 at hand while viewing the content.

  Further, the user does not need to input a keyword related to the content. As a result, there is an effect that it is possible to refer to the explanation information of the word without taking unnecessary time for the user.

<Variation 1 of the first embodiment>
In the present embodiment, a process for acquiring information from the network when there is no information to be searched in the dictionary data 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.

  Next, processing in which the video display apparatus 600 receives content from the service server 800A (hereinafter also referred to as content handling processing A) will be described. It is assumed that remote control image MG100 is displayed on display unit 530 of communication terminal device 500. In this case, it is assumed that communication terminal apparatus 500 is set to the remote control mode.

  In the present embodiment, it is assumed that dictionary data is stored in storage unit 520 of communication terminal device 500, as in the first embodiment.

  FIG. 17 is a flowchart of the content handling process A. FIG. 17 shows processing performed in each of communication terminal device 500, video display device 600, and service server 800A. Referring to FIG. 17, content handling processing A is different from content handling processing in FIG. 11 in that step S115A is performed instead of step S115, and step S116A is performed instead of step S116. The difference is that the process of step S117 is further performed. Other than that, it is the same as the content handling process, and the detailed description will not be repeated. Hereinafter, processing different from the content handling processing of the first embodiment will be mainly described.

  In the content handling processing A, the processing performed in each of the communication terminal device 500, the video display device 600, and the service server 800A until the processing in step S114 is performed is the same as the content handling processing in the first embodiment, and thus detailed. The explanation is not repeated. Here, assuming that metadata is received, YES is determined by the process of step S114, and the process proceeds to step S115A.

  In step S115A, dictionary search processing A is performed. In dictionary search processing A, control unit 510 searches word description information corresponding to each of a plurality of keywords included in the received metadata from dictionary data stored in storage unit 520.

  As a result of the search, when word explanation information corresponding to all of the plurality of keywords included in the metadata is searched, the control unit 510 determines that all the search information is present. As a result of the search, if the word explanation information corresponding to at least one of the plurality of keywords included in the metadata is not searched, the control unit 510 determines that there is no search information. Thereafter, the process proceeds to step S116A.

  The metadata used in the process of step S115A is assumed to be metadata D200 in FIG. The dictionary data used for the search is dictionary data D50. Therefore, in step S115A, it is assumed that control unit 510 determines that there is no search information. Hereinafter, a keyword whose corresponding word explanation information has not been searched from dictionary data is also referred to as an external search target keyword.

  In step S116A, control unit 510 determines whether or not all search information is determined in the process of step S115A. If YES in step S116A, the process proceeds to step S118. On the other hand, if NO at step S116A, the process proceeds to step S117. Here, assuming that there is no search information, the process proceeds to step S117.

  In step S118, the same processing as in the first embodiment is performed, and thus detailed description will not be repeated. By this processing, the term explanation display image in which the “explanation” column corresponding to “term” is not blank in the term explanation display image MG300 of FIG. Thus, the processing in communication terminal device 500 ends.

In step S117, a search process is performed.
FIG. 18 is a flowchart of the search process and the process performed by search server 800S. Referring to FIG. 18, in the search process performed by communication terminal device 500, first, the process of step S210 is performed.

In step S210, search information transmission processing for transmitting search information is performed.
In the search information transmission process, control unit 510 transmits search information to search server 800S. Thereafter, the process of step S210 ends.

  Here, it is assumed that the search information to be transmitted is the above-described external search target keyword. As described above, the external search target keyword is a keyword whose corresponding word explanation information has not been searched from the dictionary data. Here, in the dictionary search process A of step S115A, when the metadata used is the metadata D200 of FIG. 15, it is assumed that the external search target keyword as search information is the keyword “FIFU”.

In search server 800S, first, the process of step S250 is performed.
In step S250, control unit 810 determines whether or not search information has been received. If YES in step S250, the process proceeds to step S251. On the other hand, if NO at step S250, the process at step S250 is performed again. Here, assuming that an external search target keyword is received as search information, the process proceeds to step S251.

  In step S251, URL search processing is performed. In the URL search process, there is a process of searching the URL of the Web page displaying information related to the external search target keyword (“FIFU”) as the received search information from the information database stored in the search server 800S. Done. Note that the URL search process may be a process of searching from a database of information held by another device connected to the search server 800S via a network. Thereafter, the process proceeds to step S252.

  In the following, when a plurality of URLs are searched by the URL search process, a plurality of Web pages corresponding to the plurality of URLs correspond to the Web page with the largest number of links from other Web pages. The URL is also referred to as a search acquisition URL.

  When a plurality of URLs are searched by the URL search process, the search acquisition URL is not limited to the URL corresponding to the Web page described above. For example, the search acquisition URL may be a URL corresponding to a Web page displaying the most information related to the external search target keyword among a plurality of Web pages respectively corresponding to the plurality of URLs. In addition, when one URL is searched by URL search processing, the one URL becomes a search acquisition URL.

  In step S <b> 252, control unit 810 transmits a search acquisition URL to communication terminal device 500. Thereafter, the process of step S250 is performed again.

In the search process, the process proceeds to step S214 after the process of step S210.
In step S214, a search acquisition URL reception process is performed. In the search acquisition URL reception process, the unit 510 receives the search acquisition URL. Then, the control unit 510 causes the storage unit 520 to store the received search acquisition URL. Thereafter, the process proceeds to step S215.

  In step S215, an information acquisition process is performed. In the information acquisition process, the control unit 510 accesses a search acquisition URL on the Internet as a network, and acquires Web page data corresponding to the search acquisition URL. Control unit 510 causes storage unit 520 to store the acquired Web page data (hereinafter also referred to as acquired Web page data).

  When the information based on the acquired Web page data is information by characters for explaining the external search target keyword, the control unit 510 converts the information based on the acquired Web page data associated with the external search target keyword into a dictionary. Add information to be added to the data. In this case, the information based on the acquired web page data is word explanation information. Here, it is assumed that the external search target keyword is the keyword “FIFU”. When the dictionary data before the information addition process is the dictionary data D50 of FIG. 10, the dictionary data D50 becomes the following dictionary data D50A by the information addition process. And the process of step S215 is complete | finished.

  FIG. 19 is a diagram showing dictionary data D50A as an example. Referring to FIG. 19, the dictionary data D50A is based on the word “FIFU” and the acquired Web page data corresponding to the word “FIFU” in the row of the number “4” as compared with the dictionary data D50 of FIG. The difference is that word explanation information is added. Other than that, it is the same as dictionary data D50, and therefore detailed description will not be repeated.

  Therefore, the number of word explanation information included in the dictionary data is increased by the information addition process. That is, searchable keywords increase in the dictionary data.

Referring to FIG. 18 again, after the process of step S215, the process proceeds to step S216.
In step S216, search information display processing A is performed. In the search information display process A, the control unit 510 uses the word explanation information obtained by the dictionary search process A in step S115A in FIG. 17 and the acquired Web page data obtained by the information acquisition process in step S215. The term explanation display image is generated using the VDP 532 and the term explanation display image is displayed on the display unit 530.

  Here, it is assumed that the term explanation display image displayed on display unit 530 is term explanation display image MG300A described below. The term explanation display image MG300A is an image in which the word explanation information obtained by the dictionary search process A and information based on the obtained Web page data obtained by the information acquisition process are displayed together with corresponding keywords. Here, it is assumed that the acquired Web page data is data of information for explaining the external search target keyword. The external search target keyword is a keyword “FIFU”.

  Thus, the process of step S216 ends, the process returns to the process of communication terminal apparatus 500 in FIG. 17, the process of step S117 ends, and the process of communication terminal apparatus 500 also ends.

  FIG. 20 is a diagram showing a term explanation display image MG300A as an example. Referring to FIG. 20, term explanation display image MG300A is different from term explanation display image MG300 in FIG. 16 in that term explanation image MG310A is arranged instead of term explanation image MG310. The term explanation image MG310A is different from the term explanation image MG310 in that word explanation information for explaining “FIFU” is added in correspondence with the term “FIFU” that is the keyword for external search. . Note that a hyperlink character string (for example, a character string “details here”) associated with the above-described search acquisition URL may be displayed at a location where word explanation information is additionally written.

  As described above, according to the present embodiment, when there is no information to be searched in the dictionary data, the external search that has not been searched from the dictionary data from the search server 800S connected to a network such as the Internet. The URL (search acquisition URL) of the Web page on which information related to the target keyword (“FIFU”) is displayed is acquired. Then, on the Internet as a network, a search acquisition URL is accessed, Web page data corresponding to the search acquisition URL is acquired, and information based on the Web page data is displayed.

  Therefore, in this embodiment, even if the information to be searched is not in the dictionary data, the user refers to the information to be searched without performing the search process by accessing the network. be able to. That is, there is an effect that it is possible to refer to the explanation information of the word without taking unnecessary time.

  In addition, it is possible to obtain explanations of newly generated terms, terms not included in the dictionary data, and the like.

  Moreover, since the word explanation information acquired from the network is added to the dictionary data, the vocabulary of the dictionary data can be increased.

<Modification 2 of the first embodiment>
In the present embodiment, another process for acquiring information related to content displayed on display unit 630 of video display device 600 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.

  Next, processing in which the video display device 600 receives content from the service server 800A (hereinafter also referred to as content handling processing B) will be described. It is assumed that remote control image MG100 is displayed on display unit 530 of communication terminal device 500. In this case, it is assumed that communication terminal apparatus 500 is set to the remote control mode.

  In the present embodiment, it is assumed that dictionary data is stored in storage unit 520 of communication terminal device 500, as in the first embodiment.

  FIG. 21 is a flowchart of the content handling process B. FIG. 21 shows processing performed in each of communication terminal device 500, video display device 600, and service server 800A. Referring to FIG. 21, content handling process B is different from content handling process A in FIG. 17 in that step S117B is performed instead of step S117, and step S118B is performed instead of step S118. Is different. Other than that, it is the same as the content handling process A, and therefore detailed description will not be repeated. Hereinafter, a process different from the content handling process A of the first modification of the first embodiment will be mainly described.

  In the content handling processing B, the processing performed in each of the communication terminal device 500, the video display device 600, and the service server 800A until the processing in step S115A is performed is the content handling processing of the first modification of the first embodiment. Since it is the same as A, detailed description will not be repeated. Here, it is assumed that the metadata used when the process of step S115A is performed is the metadata D200 of FIG. Thereafter, the process proceeds to step S116A.

  In step S116A, processing similar to that of the first modification of the first embodiment is performed, and therefore detailed description will not be repeated. If YES in step S116A, the process proceeds to step S118B. On the other hand, if NO at step S116A, the process proceeds to step S117B described later.

In step S118B, search information display processing B is performed.
FIG. 22 is a flowchart of search information display processing B and processing performed by search server 800S. Referring to FIG. 22, in search information display process B performed by communication terminal apparatus 500, first, the process of step S305 is performed.

  In step S305, keyword extraction processing is performed. In the keyword extraction process, control unit 510 relates to the genre indicated in the metadata from the word explanation information corresponding to each of the plurality of keywords included in the metadata searched by dictionary search process A in step S115A of FIG. Extract keywords. Hereinafter, the extracted keyword is also referred to as an extracted keyword. Here, it is assumed that the metadata used in step S115A is the metadata D200 in FIG.

  In this case, the genre is “sports”. Further, the word explanation information corresponding to each of the plurality of keywords included in the metadata D200 is word explanation information corresponding to each of the numbers “1” to “4” in the dictionary data D50A of FIG. For example, in the dictionary data D50A, the keyword extraction process for the word explanation information corresponding to the number “1” is performed by the control unit 510 dividing the word explanation information corresponding to the number “1” into a plurality of words. Words related to “sports” are extracted as keywords. In this extraction process, a plurality of word explanation information included in the dictionary data stored in the storage unit 520 is used.

  Specifically, control unit 510 searches word description information corresponding to, for example, a word as a noun from a plurality of divided words from dictionary data. It is assumed that the dictionary data used for the search is dictionary data D50A. When there is a word “sports” in the explanation by the searched word explanation information, a word as a noun corresponding to the searched word explanation information is extracted as a keyword. The word corresponding to the word explanation information to be searched is not limited to a noun, and may be another part of speech.

  Here, in the dictionary data D50A, in the word explanation information corresponding to the number “1”, the word explanation information corresponding to the word “football” as a noun among a plurality of divided words is referred to as “sports”. Suppose you have a word. In this case, the word “football” is a word related to “sports” and is an extracted keyword.

  Control unit 510 performs the above-described processing performed on the word explanation information corresponding to number “1” in dictionary data D50A for the word explanation information corresponding to numbers “2” to “4”. The extracted keyword is acquired in the same manner. Here, it is assumed that the extracted keyword “football” is acquired. Thereafter, the process proceeds to step S310.

  In step S310, search information transmission processing B for transmitting search information is performed. In search information transmission process B, control unit 510 transmits search information to search server 800S. Thereafter, the process of step S310 ends.

  Here, it is assumed that the search information to be transmitted is the above-described extracted keyword. Here, it is assumed that the extracted keyword as the search information is the keyword “football”.

In search server 800S, first, the process of step S350 is performed.
In step S350, control unit 810 determines whether or not search information has been received. If YES in step S350, the process proceeds to step S351. On the other hand, if NO at step S350, the process at step S350 is performed again. Here, assuming that the extracted keyword as the search information is received, the process proceeds to step S351.

  In step S351, URL search processing is performed. In the URL search process, a process of searching the URL of the Web page on which information related to the extracted keyword (“football”) as the received search information is displayed is searched from a database of information stored in the search server 800S. . Detailed processing contents are the same as step S251 in FIG. 18, and thus detailed description will not be repeated. Thereby, the search acquisition URL is acquired. Thereafter, the process proceeds to step S352.

  In step S <b> 352, control unit 810 transmits a search acquisition URL to communication terminal device 500. Thereafter, the process of step S350 is performed again.

In the search information display process B, the process proceeds to step S311 after the process of step S310.
In step S311, search acquisition URL reception processing is performed. In the search acquisition URL reception process, the unit 510 receives the search acquisition URL. Then, the control unit 510 causes the storage unit 520 to store the received search acquisition URL. Thereafter, the process proceeds to step S312.

  In step S312, a link character string display process is performed. In the link character string display process, the control unit 510 uses the VDP 532 to generate a term explanation display image using the word explanation information obtained by the dictionary search process A in step S115A of FIG. The term explanation display image is generated and displayed on the display unit 530. Thereafter, the process of step S312 ends.

  Here, it is assumed that the term explanation display image displayed on display unit 530 is the following term explanation display image MG300B. The term explanation display image MG300B is an image in which the extracted keyword in the word explanation information is displayed as a hyperlink character string. Here, the extracted keyword is associated with the search acquisition URL acquired in step S311. Here, it is assumed that the extracted keyword is the word “football”.

  FIG. 23 is a diagram showing a term explanation display image MG300B as an example. Referring to FIG. 23, term explanation display image MG300B is different from term explanation display image MG300A in FIG. 20 in that term explanation image MG310B is arranged instead of term explanation image MG310A. The term explanation image MG310B is different from the term explanation image MG310A in that the word “football” that is the extracted keyword is underlined to indicate that it is a hyperlink character string. Other than that, it is the same as term explanation image MG310A, and therefore detailed description will not be repeated.

  In addition, the display mode which shows that an extraction keyword is a hyperlink character string is not limited to an underline. In order to indicate that the extracted keyword is a hyperlink character string, for example, the extracted keyword may be displayed in a different color from other character strings.

Again referring to FIG. 22, after the processing of step S312, the process proceeds to step S313.
In step S313, control unit 510 determines whether or not there is an information acquisition operation. Here, the information acquisition operation is an operation for acquiring information on the Web page corresponding to the search acquisition URL corresponding to the extracted keyword displayed on the display unit 530 as the hyperlink character string. The information acquisition operation is, for example, an interface operation M in which the extracted keyword (“football”) displayed as a hyperlink character string on the display unit 530 is touched. If YES in step S313, the process proceeds to step S315. On the other hand, if NO at step S313, the process at step S313 is performed again. Here, assuming that there is an information acquisition operation, the process proceeds to step S315.

  In step S315, information acquisition processing is performed. Since the information acquisition process is the same as the process of step S215 in FIG. 18, detailed description will not be repeated. Through this process, the acquired Web page data corresponding to the search acquisition URL is stored in the storage unit 520. When the information based on the acquired web page data is information by characters for explaining the extracted keyword, control unit 510 adds information based on the acquired web page data associated with the extracted keyword to the dictionary data. Information addition processing is performed. Since the information addition process is the same as the process described in step S215, detailed description will not be repeated. Thereafter, the process proceeds to step S316.

  In step S316, search information display processing BB is performed. In search information display processing BB, using acquired Web page data, control unit 510 uses VDP 532 to generate a Web page image, and displays the Web page image on display unit 530. Then, the process of step S316 ends. As an example, it is assumed that the Web page image is the following Web page image MG400.

  FIG. 24 is a diagram showing a web page image MG400 as an example. Referring to FIG. 24, as an example, still image display image MG410 and information display image MG420 are arranged in Web page image MG400.

  Still image display image MG410 displays a still image. The still image is, for example, an image related to football. Information display image MG420 is an image on which text is displayed. The sentence is, for example, a sentence explaining football.

Referring to FIG. 22 again, after the process of step S316, the process proceeds to step S317.
In step S317, control unit 510 determines whether or not there is an end operation. The end operation is an interface operation M for ending the process of the communication terminal device 500 in the content handling process B. If YES in step S317, this search information display process B ends, the process returns to the process of communication terminal apparatus 500 in FIG. 21, and the process in communication terminal apparatus 500 also ends. On the other hand, if NO at step S317, the process at step S317 is performed again.

If NO at step S116A described above, the process proceeds to step S117B.
In step S117B, search processing B is performed.

  FIG. 25 is a flowchart of search processing B and processing performed in search server 800S. Referring to FIG. 25, search process B is different from search process of FIG. 18 in that step S216B is performed instead of step S216. Other than that, it is the same as the search process, and the detailed description will not be repeated. Hereinafter, processes different from those of the first modification of the first embodiment will be mainly described. In the search process B performed by the communication terminal device 500, first, the process of step S210 is performed.

  In step S210, a process similar to that of the first modification of the first embodiment is performed, and thus detailed description will not be repeated. By this processing, the external search target keyword as search information is transmitted to the search server 800S. Here, it is assumed that the external search target keyword as search information is the keyword “FIFU”.

  In search server 800S, the processes in steps S250, S251, and S252 are performed as in Modification 1 of the first embodiment, and thus detailed description thereof will not be repeated. Through these processes, the search acquisition URL is transmitted to the communication terminal device 500.

  In the search process B, after the process of step S210, the processes of steps S214 and S215 are performed in the same manner as in the first modification of the first embodiment, and therefore detailed description will not be repeated.

  In step S215, it is assumed that the information addition process described above is performed on the assumption that the information based on the acquired Web page data is information by characters for explaining the external search target keyword. When the dictionary data before the information addition process is the dictionary data D50 of FIG. 10, the dictionary data D50 becomes the dictionary data D50A of FIG. 19 by the information addition process.

After the process of step S215, the process proceeds to step S216B.
In step S216B, search information display processing B is performed. The search information display process B is the process described with reference to FIG.

  Referring to FIG. 22 again, in step S305, the above-described processing is performed, and thus detailed description will not be repeated. The metadata used in step S305 is assumed to be metadata D200 in FIG. It is assumed that an extracted keyword “soccer” corresponding to the number “4” is acquired in the dictionary data D50A of FIG. Thereafter, the process proceeds to step S310.

  Thereafter, the process of step S310 is performed. In step S310, the same processing as described above is performed, and therefore detailed description will not be repeated. With this process, the extracted keyword “soccer” as search information is transmitted to the search server 800S.

  In search server 800S, as described above, steps S350, S351, and S352 are performed, and therefore detailed description will not be repeated. Through these processes, the search acquisition URL is transmitted to the communication terminal device 500.

  In the search information display process B, the processes in steps S311 and S312 described above are performed after the process in step S310, and therefore detailed description will not be repeated. Here, it is assumed that the extracted keyword is the word “soccer”. By these processes, the following term explanation display image MG300C is displayed on the display unit 530.

  FIG. 26 is a diagram illustrating a term explanation display image MG300C as an example. Referring to FIG. 26, term explanation display image MG300C is different from term explanation display image MG300A in FIG. 20 in that term explanation image MG310C is arranged instead of term explanation image MG310A. The term explanation image MG310C is different from the term explanation image MG310A in that the word “soccer” that is the extracted keyword is underlined to indicate that it is a hyperlink character string. Other than that, it is the same as term explanation image MG310A, and therefore detailed description will not be repeated.

  In addition, the display mode which shows that an extraction keyword is a hyperlink character string is not limited to an underline. In order to indicate that the extracted keyword is a hyperlink character string, for example, the extracted keyword may be displayed in a different color from other character strings.

Again referring to FIG. 22, after the processing of step S312, the process proceeds to step S313.
In step S313, a process similar to the process described above is performed, and thus detailed description will not be repeated. Here, assuming that there is an information acquisition operation for touching the extracted keyword “soccer”, the process proceeds to step S315.

  In step S315, the same processing as described above is performed, and thus detailed description will not be repeated. Thereafter, in the same manner as described above, the process of step S316 is performed. Through these processes, for example, a Web page image displaying information related to “soccer” or the like is displayed on display unit 530. Thereafter, if YES is determined in the process of step S317, the search information display process B ends, the process returns to the search process B of FIG. 25, the process of step S216B ends, and the search process B ends. Returning to the processing of the communication terminal device 500, the processing of step S117B ends, and the processing in the communication terminal device 500 also ends.

  As described above, according to this embodiment, keywords (extracted keywords) related to the genre indicated in the metadata are automatically extracted from the word explanation information corresponding to each of the plurality of keywords included in the metadata. Is done. Then, the extracted keyword is displayed on the display unit 530 as a hyperlink character string associated with the URL of the Web page on which information related to the extracted keyword is displayed. Then, information related to the extracted keyword can be referred to by a touch operation of the extracted keyword.

  Therefore, in the present embodiment, in addition to the effects of the first embodiment, video display device 600 among a plurality of words retrieved from dictionary data and included in word explanation information displayed on display unit 530. Even the information related to the word related to the genre of the content displayed on the display unit 630 can be easily recognized by the communication terminal device 500 at hand.

  Further, according to the present embodiment, when the information to be searched is not found in the dictionary data, the information to be searched is acquired from the Internet as a network as in the first modification of the first embodiment. To do. Then, keywords (extracted keywords) related to the genre indicated in the metadata are automatically extracted from the acquired information. Then, the extracted keyword is displayed on the display unit 530 as a hyperlink character string associated with the URL of the Web page on which information related to the extracted keyword is displayed. Then, information related to the extracted keyword can be referred to by a touch operation of the extracted keyword.

  Therefore, in the present embodiment, in addition to the effect produced by the first modification of the first embodiment, a plurality of words included in the word explanation information retrieved from the Internet as the network and displayed on the display unit 530 are displayed. Among them, there is an effect that even the information related to the word related to the genre of the content displayed on the display unit 630 of the video display device 600 can be easily known by the communication terminal device 500 at hand.

  In the present invention, the metadata is included in the content received by the video display device 600. However, the metadata may not be included in the received content. In this case, the communication terminal device 500 may receive the metadata corresponding to the content via a network or may be received as a broadcast radio wave. The video display device 600 may receive the content as a broadcast wave, and the communication terminal device 500 may receive metadata corresponding to the content via a network.

  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 left side surface. 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 figure which showed the external appearance of the video display apparatus from the front. 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 figure which shows the dictionary data as an example. It is a flowchart of a content handling process. It is a figure which shows the list data as an example. It is a figure which shows the list image as an example. It is a figure which shows the list image as an example. It is a figure which shows the metadata as an example. It is a figure which shows the term explanation display image as an example. It is a flowchart of the content handling process A. It is a flowchart of the search process and the process performed by a search server. It is a figure which shows the dictionary data as an example. It is a figure which shows the term explanation display image as an example. It is a flowchart of the content handling process B. It is a flowchart of the process performed by the search information display process B and a search server. It is a figure which shows the term explanation display image as an example. It is a figure which shows the web page image as an example. It is a flowchart of the process performed by the search process B and a search server. It is a figure which shows the term explanation display image as an example.

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 (4)

An apparatus capable of receiving secondary information including a content and a keyword related to the content, a display unit for displaying the received content, and data communication of secondary information corresponding to the content displayed on the display unit A communication terminal device capable of data communication with a video display device to be transmitted to
The communication terminal device
Storage means for storing dictionary data including explanation information of each of a plurality of words;
Receiving means for receiving the secondary information once received by the video display device together with the content and transmitted from the video display device when the content is displayed;
Search means for searching for explanation information corresponding to the secondary information from the dictionary data based on the received secondary information;
When the description information corresponding to the secondary information is not searched by the search means, the acquisition means for acquiring the description information corresponding to the secondary information that was not searched from the network;
Display means for displaying explanatory information acquired from the network by the acquisition means,
The secondary information includes genre information of content displayed on the display unit,
For the keyword, the description information obtained by the search using the dictionary data by the search means or the acquisition from the network by the acquisition means is divided into words, and the description information corresponding to each word is searched for. The character string included in the description information corresponding to each word and the character string included in the genre information are determined to match each other obtained by retrieval using dictionary data by the means or acquisition from the network by the obtaining means. By this, it is provided with an extracting means for extracting a genre related keyword from the explanation information,
The display means displays the extracted genre-related keywords,
The communication terminal apparatus, wherein the extracted genre related keyword is associated with a network address for obtaining information related to the extracted genre related keyword. In response to an instruction input, the information further includes related information acquisition means for acquiring information related to the extracted genre-related keywords from the network using the network address,
The communication terminal apparatus according to claim 1, wherein the display unit displays information acquired by the related information acquisition unit. A video display system composed of a communication terminal device and a video display device,
The video display device
Receiving means for receiving secondary information including content and keywords related to the content;
First display means for displaying content received by the receiving means;
Transmission means for transmitting the secondary information corresponding to the content displayed on the first display means to the communication terminal device;
The communication terminal device
Storage means for storing dictionary data including explanation information of each of a plurality of words;
Receiving means for receiving the secondary information transmitted by the transmitting means of the video display device;
Search means for searching for explanation information corresponding to the secondary information from the dictionary data based on the received secondary information;
When the description information corresponding to the secondary information is not searched by the search means, the acquisition means for acquiring the description information corresponding to the secondary information that was not searched from the network;
Second display means for displaying explanatory information acquired from the network by the acquisition means,
The secondary information includes genre information of content displayed on the first display means ,
For the keyword, the description information obtained by the search using the dictionary data by the search means or the acquisition from the network by the acquisition means is divided into words, and the description information corresponding to each word is searched for. The character string included in the description information corresponding to each word and the character string included in the genre information are determined to match each other obtained by retrieval using dictionary data by the means or acquisition from the network by the obtaining means. By this, it is provided with an extracting means for extracting a genre related keyword from the explanation information,
The second display means displays the extracted genre related keywords,
The video display system, wherein the extracted genre-related keyword is associated with a network address for acquiring information related to the extracted genre-related keyword. An apparatus capable of receiving secondary information including a content and a keyword related to the content, a display unit for displaying the received content, and data communication of secondary information corresponding to the content displayed on the display unit A control program for causing a computer capable of data communication with a video display device to transmit to a computer,
The computer is provided with a storage unit for storing dictionary data including explanation information for each of a plurality of words, and an information display unit for displaying information,
The control program is stored in the computer.
Receiving the secondary information transmitted from the video display device; and
Based on the received secondary information, a search step for searching for explanation information corresponding to the secondary information from the dictionary data;
When the description information corresponding to the secondary information is not searched by the search step, the acquisition step of acquiring the description information corresponding to the secondary information not searched from the network;
The secondary information includes genre information of content displayed on the display unit ,
With respect to the keyword, the searching step by the search using the dictionary data, or divided into words descriptive information obtained by the obtaining from the network by the acquisition step, the search description information corresponding to each word It is determined whether the character string included in the description information corresponding to each word and the character string included in the genre information are obtained by searching using dictionary data in the step or acquiring from the network in the acquiring step. Extracting a genre-related keyword from the explanation information,
Displaying the extracted genre-related keywords on the information display unit;
The extracted genre related keyword is associated with a network address for obtaining information related to the extracted genre related keyword.

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