JP2010258849A - Caption conversion system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a caption conversion system equipped with a receiver which converts caption data included in a received broadcast wave. <P>SOLUTION: A digital broadcast receiving system for receiving caption data broadcasted by digital broadcast is equipped with at least one broadcast receiver and a terminal device which connects communicatably to the broadcast receiver, the broadcast receiver includes a digital broadcast receiver to receive the digital broadcast, a digital broadcast decoding portion which decodes the caption data from the digital broadcast, a converted caption data generation portion which generates converted caption data from the decoded caption data using a conversion program prepared beforehand, and a converted caption data transmitting portion which transmits the converted caption data to the terminal device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a caption conversion system including a receiver that converts caption data included in a received broadcast wave. In particular, the present invention relates to a caption conversion system including a receiver that converts caption data included in a received broadcast wave and transmits the converted data to a terminal.

  2. Description of the Related Art Conventionally, a technique related to a video software playback device capable of playing back an image corresponding to a desired subtitle text is known (Patent Document 1). According to this technology, caption text data and time code data of video software can be made into a database and used as an index for a program or the like.

  In recent years, a technique of using a television receiver or the like as a Java virtual machine using a method of transmitting encoded data by broadcast waves is known (Non-Patent Document 1). According to this technology, a broadcast station transmits a message or a program to a television receiver or the like as a Java virtual machine, and the television receiver or the like uses a Java (registered trademark) application programming interface (Java API). Predetermined processing or the like on the received message can be performed. The technology in this technical field that causes a television receiver or the like capable of receiving digital broadcasting to operate as a Java virtual machine is incorporated herein by reference in its entirety.

JP 7-222105 A

Japan Radio Industry Association, “Application Execution Environment Standard for Digital Broadcasting (ARIB STD-B23 1.1 Version)”, Part 2 “Application Execution Environment”, February 5, 2004

  However, in the technology used in the conventional video software playback apparatus, there is a limit in storing a large amount of caption data using a television receiver or the like with limited processing capabilities and functions. For the same reason, it has been difficult to further process the caption data included in the received television broadcast using a television receiver or the like.

  It is an object of the present invention to provide a television reception system that can convert caption data included in a received television broadcast and use the converted caption data. Another object of the present invention is to realize data processing that is difficult with a conventional receiver and various services that are impossible with a conventional receiver.

  In the present invention, the following means are provided.

  According to a first aspect of the present invention, there is provided a digital broadcast receiving system for receiving caption data broadcast by digital broadcasting, wherein the digital broadcast receiving system is capable of communicating with at least one broadcast receiving device and the broadcast receiving device. The broadcast receiving device includes a digital broadcast receiving unit that receives digital broadcasting, a digital broadcast decoding unit that decodes caption data from the digital broadcast, and a conversion program prepared in advance from the decoded caption data. There is provided a digital broadcast receiving system comprising: a converted subtitle data generation unit that generates converted subtitle data using a converted subtitle data transmission unit that transmits the converted subtitle data to a terminal device.

  Preferably, the broadcast receiving device included in the receiving system according to the present invention is typically a digital broadcast receiver, which is a Java virtual machine capable of using a Java API known in the art. Such a digital broadcast receiver can receive a digital broadcast from a broadcast station as a Java data broadcast. Therefore, the broadcasting station can transmit data such as character strings or a program for executing predetermined processing to the digital broadcast receiver as the Java virtual machine according to predetermined specifications. The digital broadcast receiver according to the present invention can perform processing such as extraction of a character string using a predetermined API. Typically, a Java data broadcast receiver or the like including a digital broadcast receiver according to the present invention accumulates data sent by broadcast over time using an appropriate storage medium or the like, and from the accumulated data, a predetermined amount is stored. Operates by retrieving information or programs.

  Preferably, the terminal device included in the receiving system according to the present invention is an external device that is communicably connected to the broadcast receiving device. For example, such a communication terminal can be provided in the form of a personal computer, a mobile phone, a network terminal, or the like, but is not limited thereto.

  The connection between the broadcast receiving apparatus and the terminal apparatus in the receiving system according to the present invention may be a one-to-one direct connection or a connection via a home network using a commercially available wireless or wired broadband router. Alternatively, the connection may be a known power line network connection or the like. Therefore, the receiving system according to the present invention can be configured by a broadcast receiving device and a terminal device that are connected to each other using a home network or the like that is typically configured in a home.

  The number of terminal devices connected to the broadcast receiving device is not limited to one, and a plurality of terminal devices may be used. For example, a plurality of terminal devices may be connected to one broadcast receiving device. Therefore, the data transmitted from the broadcast receiving device may be received by a plurality of terminal devices, and each terminal device may individually process the received data according to the installation status or setting. On the contrary, a receiving system according to the present invention may be configured by connecting a plurality of broadcast receiving devices to one terminal device. On the terminal device side, each of the plurality of broadcast receiving devices may be individually identified and used.

  In the receiving device included in the receiving system according to the present invention, typically, the digital broadcast receiving unit receives a digital broadcast, and the digital broadcast decoding unit receives a TS (Transport Stream) from the received digital broadcast. Decrypt. In particular, in the present invention, caption data is decoded as a part of TS by decoding of the digital broadcast decoding unit.

  The converted caption data generation unit included in the reception system according to the present invention generates converted caption data from the decoded caption data using a conversion program prepared in advance. Here, conversion is addition, deletion or extraction of arbitrary data, conversion or formatting of arbitrary data format (type of word length, variable or constant, code system, computer language, etc.) (addition or deletion of display control code, etc.) ), Conversion of an arbitrary data structure (presence / absence of header area, field definition, etc.), concatenation, combination or rearrangement of a plurality of data, and the like. The conversion program prepared in advance may be incorporated in the converted subtitle data generation unit, or may be provided as a part of an arbitrary form of control means for controlling the operation of the converted subtitle data generation unit. sell. Further, the broadcasting station may broadcast a conversion program that can be executed by the converted caption data generation unit according to the present invention in accordance with a predetermined specification. That is, the converted caption data generation unit may generate converted caption data from the caption data broadcast after the conversion program is broadcast, using the conversion program transmitted in this way.

  The converted subtitle data transmission unit included in the reception system according to the present invention transmits the converted subtitle data to the terminal device. Transmission of the converted caption data by the converted caption data transmission unit may be performed using a known IP address or the like without specifying the destination terminal device using broadcast transmission or the like. May be.

  Furthermore, in the digital broadcast receiving system according to the present invention, the terminal device receives a converted subtitle data receiving unit that receives the converted subtitle data transmitted from the broadcast receiving device, and time information in the subtitle data with respect to the received converted subtitle data. And a process-converted caption data generation unit that generates process-converted caption data.

  The time information added by the terminal device included in the digital broadcast receiving system according to the present invention is typically a display time (PTS: Presentation Time Stamp) included in the decoded TS. That is, the process converted caption data generation unit generates the process converted caption data by linking the display time and the data included in the caption data. Therefore, by using this processing-converted caption data, the digital broadcast receiving system according to the present invention can use the association between specific caption data and a specific display time. Specifically, a specific display time is associated with the caption data that can be visually recognized by the user.

  Furthermore, in the digital broadcast receiving system according to the present invention, the process converted caption data generation unit further adds a program information process, a metadata process, or a predetermined process to the received converted caption data. The process of converting to the data format is performed.

  In the digital broadcast receiving system according to the present invention, program information, metadata, or conversion into a predetermined data format can be further added to caption data having an association with a display time (PTS). is there. These processes can be performed using the terminal device according to the present invention. Therefore, in the present invention, it is possible to provide various usage forms for the broadcasted caption data without increasing the load of the broadcast receiving apparatus having a form such as a television receiver.

  Furthermore, in the digital broadcast receiving system according to the present invention, the predetermined data format includes either hypertext or an extensible markup language.

  With regard to a predetermined data format used by the process-converted caption data generation unit, the hypertext is typically data in text format conforming to the HTML (JIS X 4156: 2005) specification, and the extensible markup language is, for example, XML. (JIS X 4159: 2002) Data in text format conforming to the specification. Therefore, the process-converted caption data generated by the terminal device included in the digital broadcast receiving system according to the present invention can be used in any application software that can use HTML hypertext. For example, it is possible to use the process-converted caption data by using a personal computer or a mobile phone terminal that operates an Internet browser as a terminal device according to the present invention. For example, processing-converted caption data may be generated as HTML-specific text data including a tag for concatenating a plurality of subtitle data in temporal order and displaying text format data in a table format. . By using a terminal device capable of operating a browser, the user can list such processed converted caption data as text displayed on the screen in a tabular format.

  Furthermore, in the digital broadcast receiving system according to the present invention, the terminal device includes a processed converted caption data transmitting unit that transmits the processed converted caption data to the broadcast receiving device, and the broadcast receiving device receives the digital broadcast received by the digital broadcast receiving unit. A digital broadcast recording / playback unit for recording and playing back, a process conversion subtitle data receiving unit for receiving the process conversion subtitle data transmitted from the terminal device, and a process conversion subtitle data playback unit for playing back the received process conversion subtitle data, The digital broadcast decoding unit decodes the caption data from the digital broadcast reproduced by the digital broadcast recording / reproducing unit.

  The processing conversion subtitle data transmission unit provided in the terminal device transmits the processing conversion subtitle data subjected to processing such as addition of program information, addition of metadata, conversion of data format, etc., to the broadcast receiving device. . The broadcast receiving apparatus receives the caption data that has been subjected to the process using the processing converted caption data reception unit, and the received caption data that has been subjected to the processing using the processing conversion caption data reproduction unit. It is played back on the broadcast receiver. In this way, it is possible to use the caption data that has been subjected to various processes again in the broadcast receiving apparatus.

  The digital broadcast recording / reproducing unit included in the receiving system according to the present invention records the digital broadcast received using the digital broadcast receiving unit, and reproduces the recorded digital broadcast. Here, recording in the digital broadcast recording / reproducing unit refers to storing digital broadcast including subtitle data. Recording in the digital broadcast recording / playback unit refers to playing back a stored digital broadcast in a state in which caption data can be read.

In one embodiment, the digital broadcast recording / playback unit stores the received digital broadcast in a bitstream format and plays back the bitstream format. The digital broadcast decoding unit decodes the TS from the bit stream. That is, caption data is decoded as part of TS.
In another embodiment, the digital broadcast recording / reproducing unit stores the received digital broadcast as a TS and reproduces it as a TS. The digital broadcast decoding unit can handle the caption data included as part of the TS as already decoded caption data.
In another embodiment, the digital broadcast recording / playback unit converts the received digital broadcast into an MPEG-2 format having a predetermined bit rate, which is one of compressed video data formats, and stores the digital broadcast. The subtitle data included in the broadcast is stored in association with the digital broadcast converted into the MPEG-2 format, and when reproduced, the digital broadcast in the MPEG-2 format is reproduced and the associated subtitle data is specified and used. . The digital broadcast decoding unit can handle the associated caption data as already decoded caption data. The data format for storing the digital broadcast is not limited to MPEG-2, and may be selected from known data formats corresponding to playback. For example, the data format may be MPEG-4, QuickTime (registered trademark), FlashVideo (registered trademark), or the like. Any method and means for data compression in storage and data decoding in playback may be used.

  As described above, in the broadcast receiving apparatus according to the present invention, the digital broadcast recording / playback unit holds the association between the specific digital broadcast and the specific subtitle data, and the digital broadcast decoding unit stores the decoded subtitle data or the already decoded subtitle data. Can be generated. The data format of the digital broadcast to be stored may be anything, and a bit stream, TS, MPEG-2, or a known data format can be arbitrarily used.

  Furthermore, in the digital broadcast receiving system according to the present invention, the terminal device includes a display unit that displays information including the converted subtitle data received by the converted subtitle data receiving unit or information generated by the processing converted subtitle data generating unit, and a display unit A broadcast position receiving unit that receives an instruction based on information displayed by the display and generates a playback position information that associates the instruction with the time information and transmits to the broadcast receiving apparatus via the process converted caption data transmitting unit. Is characterized in that, based on the reproduction position information generated by the reproduction position instruction unit, the digital broadcast recorded in the digital broadcast recording / reproduction unit is reproduced from a position corresponding to the associated time information.

The display unit included in the terminal device may have a casing independent of the terminal device, or may be built in the terminal device.
The reproduction position instruction unit provided in the terminal device typically receives information on the reproduction position as an instruction from the user. For example, the instruction is generated by the user using an input device such as a keyboard or a pointing device that is appropriately provided in the terminal device. Specifically, the instruction is based on a user's desire to view a video corresponding to specific caption data. The reproduction position instruction unit receives such an instruction and associates it with a display time (PTS) included in the process-converted caption data corresponding to the instruction. This association is transmitted to the broadcast receiving apparatus via the process converted caption data transmitting unit. Based on this association, the digital broadcast recording / playback unit of the broadcast receiving apparatus starts playback of the stored digital broadcast from a position corresponding to the display time (PTS).

  In this way, in the digital broadcast receiving system according to the present invention, a part of the caption data that the user desires to start playing the video is selected from the processing-converted caption data displayed by the terminal device. The display time (PTS) corresponding to the selected caption data is transmitted from the terminal device to the broadcast receiving device, and playback of the recorded digital broadcast is started from the position corresponding to the display time (PTS). Therefore, the user of the digital broadcast receiving system according to the present invention, for example, lists subtitle data displayed on the terminal device in a tabular format and selects a part of the subtitle data to reproduce from the position corresponding to the subtitle data. Can be viewed.

  According to the second aspect of the present invention, there is provided a digital broadcast receiving program for receiving caption data broadcast by digital broadcasting, wherein the digital broadcast receiving program is connected to each other so as to communicate with each other. In a digital broadcast receiving system including a receiving device and at least one terminal device, a digital broadcast receiving unit that receives a digital broadcast, a digital broadcast decoding unit that decodes subtitle data from the digital broadcast, and decoded subtitle data are prepared in advance. A computer comprising a converted subtitle data generating unit that generates converted subtitle data using the converted program and a converted subtitle data transmitting unit that transmits the converted subtitle data to the terminal device is caused to function as a broadcast receiving device. A converted subtitle data receiving unit for receiving the transmitted converted subtitle data; Provided is a digital broadcast receiving program characterized in that a computer comprising a processing conversion subtitle data generation unit that performs predetermined processing on the converted subtitle data and generates processing conversion subtitle data functions as a terminal device Is done.

  The digital broadcast receiving program according to the present invention can be provided in the form of an arbitrary computer-readable medium such as a memory card or a read-only memory (ROM). For example, the television receiver may be provided with a microprocessor and a storage medium to execute the digital broadcast receiving program according to the present invention. The reception program according to the present invention may be received in the form of broadcast, decoded by the decoding unit of the digital broadcast receiver, and extracted by the information extraction unit. The digital broadcast receiving program according to the present invention can be provided in any form known in the art, such as a binary format that can be executed alone, a binary code that uses an appropriate library together, or a source code of a script language. Further, the digital broadcast receiving program according to the present invention can be combined with existing technologies such as a receiving program for digital television broadcasting, an e-mail transmission program, a reserved recording program, etc. It is included in the technical scope of the invention. Furthermore, the technique of the present invention provides the steps of the operation according to the present invention in the form of FPGA (field programmable gate array), ASIC (application specific integrated circuit), hardware logic elements equivalent to these, programmable An integrated circuit or a combination thereof can be provided in the form of a program that can be stored, that is, as a program product. Specifically, a receiving program for the receiving system according to the present invention can be provided as a form of a custom LSI (large scale integrated circuit) including a data input / output, a data bus, a memory bus, a system bus, and the like. The form of the program product stored in the integrated circuit is also included in the technical scope of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the television receiving system which can perform data conversion of the caption data contained in the received television broadcast, and can utilize the converted caption data. Further, according to the present invention, it is possible to provide a television reception system that can realize data processing that is difficult with a conventional receiver and various services that are impossible with a conventional receiver.

1 is a diagram showing a digital broadcast receiving system 100 according to an embodiment of the present invention. 1 is a diagram showing a digital broadcast receiving system 105 according to an embodiment of the present invention. It is a flowchart showing operation | movement of the digital broadcast receiving system 100 based on one Embodiment of this invention. It is a flowchart showing operation | movement of the digital broadcast receiving system 105 based on one Embodiment of this invention. It is a figure which illustrates cooperation with the broadcast receiving apparatus and terminal device based on one Embodiment of this invention. It is a figure which illustrates transmission / reception of the information relevant to caption data based on one Embodiment of this invention. It is a figure which shows the example which embeds other data in the process conversion subtitle data based on one Embodiment of this invention. It is a figure which illustrates the display of the process conversion subtitle data based on one Embodiment of this invention. It is a figure which shows another structural example of the broadcast receiving apparatus and terminal device based on one Embodiment of this invention. It is a figure which shows the example which reproduces | regenerates recording according to the designated subtitle data based on one Embodiment of this invention. 1 is a diagram illustrating various system configurations according to an embodiment of the present invention. FIG.

  Hereinafter, embodiments of the present invention will be described. This is merely an example, and the technical scope of the present invention is not limited to this.

[Configuration of Digital Broadcast Reception System 100]
FIG. 1 is a diagram showing an example of the configuration of a digital broadcast receiving system 100 according to an embodiment of the present invention. A digital broadcast receiving system 100 shown in FIG. 1 includes a receiving device 200 as a broadcast receiving device and an external device 300 as a terminal device. The reception device 200 includes a broadcast reception unit 210, a decoding unit 230, a caption conversion unit 240, a data transmission unit 250, and a reception device control unit 290. The external device 300 includes a data receiving unit 310, a data processing unit 320, and an external device control unit 390.

  In the receiving apparatus 200, the broadcast receiving unit 210 receives a digital broadcast including caption data provided in a form such as a broadcast wave or network distribution. The caption data typically has a computer readable data format such as text data. Digital broadcasting is digital television broadcasting or digital radio broadcasting that can be accompanied by caption data. The digital broadcast may include video and / or audio, information for decoding these, a computer program in a script language that can be operated by the receiving device 200, and the like in addition to the caption data. Hereinafter, although the digital broadcast will be described as a digital television broadcast accompanied by caption data, the present invention can be used for various digital broadcasts accompanied by caption data.

  The decoding unit 230 decodes the digital broadcast received by the broadcast receiving unit 210 and extracts subtitle data, video, audio, various data, programs, and the like. The caption conversion unit 240 performs conversion prepared in advance on the caption data extracted by the decoding unit 230 to generate converted caption data. The data transmission unit 250 transmits the converted caption data to the external device 300. The reception device control unit 290 controls operations of the broadcast reception unit 210, the decoding unit 230, the caption conversion unit 240, and the data transmission unit 250 provided in the reception device 200. The reception device control unit 290 may appropriately include a storage medium for the operation of the computer program that controls the operation of each component of the reception device 200.

  In the external device 300, the data reception unit 310 receives the converted caption data transmitted from the data transmission unit 250 of the reception device 200. The data processing unit 320 performs a process prepared in advance on the received converted subtitle data, and generates processed converted subtitle data. The external device control unit 390 controls operations of the data receiving unit 310 and the data processing unit 320 provided in the external device 300. The external device control unit 390 may appropriately include a storage medium for the operation of the computer program that controls the operation of each component of the external device control unit 390.

  The conversion prepared in advance in the caption conversion unit 240 of the receiving device 200 may be prepared in advance by appropriately providing a storage medium in the receiving device control unit 290, for example. The caption conversion unit 240 can use the program prepared in this way. Alternatively, after a broadcasting station or the like broadcasts a conversion program included in the digital broadcast and the decoding unit 230 decodes and extracts the program, the subtitle conversion unit 240 uses the program to extract the program. You may implement the conversion with respect to the subtitle data received later.

  The conversion prepared in advance in the caption conversion unit 240 is, for example, to add display time (PTS) information. A form of using the caption data to which the display time (PTS) is added will be described later. However, the conversion prepared in advance in the caption conversion unit 240 according to the present invention is not limited to this. Conversions prepared in advance include addition, deletion or extraction of arbitrary data, conversion or formatting of arbitrary data formats (word length, variable or constant type, code system, computer language, etc.) or addition of display control codes, etc. Deletion), conversion of any data structure (header area presence / absence, field definition, etc.), concatenation, combination or rearrangement of a plurality of data may be optionally included. For example, the caption conversion unit 240 may link one caption data corresponding to a certain scene and another caption data corresponding to another scene in a digital television broadcast program. Further, for example, the subtitle conversion unit 240 adds a field for tag information that is not included in the broadcast subtitle data to the broadcast subtitle data for subsequent processing in the external device 300. Thus, the converted caption data may be generated.

  The process prepared in advance in the data processing unit 320 of the external device 300 is a process of generating processed converted caption data from the converted caption data received by the data receiving unit 310. For example, the process prepared in advance is a process of converting to a predetermined data format such as a table format, but is not limited thereto. The process prepared in advance in the data processing unit 320 according to the present invention can include a process of adding program information, a process of adding metadata, or a process of converting to a predetermined data format. Also, the predetermined data format includes either hypertext or an extensible markup language.

  Hypertext is typically data in a text format that conforms to the HTML (JIS X 4156: 2005) specification, and the extensible markup language is, for example, a text format that conforms to the XML (JIS X 4159: 2002) specification. It is data. Therefore, the process-converted caption data generated by the data processing unit 320 can be used in any application software that can use HTML hypertext. For example, it is possible to use process-converted caption data by using a personal computer or a mobile phone terminal that operates an Internet browser as the external device 300 according to the present invention. For example, one process-converted subtitle data may be generated as HTML text data including a tag for displaying the screen in a tabular format from a plurality of converted subtitle data having a continuous temporal order. By using the external device 300 that can operate the browser, the user can list such processed converted caption data as text displayed on the screen in a tabular format.

  FIG. 1 shows a basic configuration of a digital broadcast receiving system 100 according to the present invention. Other components, for example, a known video signal output circuit, a remote controller (remote controller) signal receiving circuit, an input device connection interface such as a keyboard, and the like may be appropriately added to the receiving device 200 or the external device 300. . Accordingly, the digital broadcast receiving system 100 shown in FIG. 1 incorporates the function of the receiving device 200 in a television apparatus or the like having screen display means, and incorporates the function of the external device 300 in a personal computer or the like having a keyboard and display. However, the present invention is not limited to these. For example, the function of the receiving device 200 may be incorporated in a digital broadcast tuner or the like that can receive a digital broadcast signal including caption data.

[Configuration of Digital Broadcast Reception System 105]
FIG. 2 is a diagram showing an example of the configuration of the digital broadcast receiving system 105 according to an embodiment of the present invention. A description of portions common to FIG. 1 is omitted. In the digital broadcast receiving system 105 shown in FIG. 2, the receiving device 200 further includes a recording unit 220 and a reproduction unit 260, and the external device 300 further includes a data display unit 330 and a reproduction position instruction unit 340.

  In the digital broadcast receiving system 105, the recording unit 220 of the receiving device 200 uses a computer-readable medium of an arbitrary form such as a magnetic medium, an optical medium, or a memory to digitally attach subtitle data received by the broadcast receiving unit 210. Record the broadcast. The recorded digital broadcast is played back by the playback unit 260.

  In one embodiment, the recording unit 220 stores the received digital broadcast in a bit stream format and reproduces it in the bit stream format. The playback unit 260 decodes the TS from the bit stream. That is, caption data is decoded as part of TS.

  In another embodiment, the recording unit 220 stores the received digital broadcast as a TS and reproduces it as a TS. The reproducing unit 260 can handle the caption data included as part of the TS as already decoded caption data.

  In another embodiment, the recording unit 220 converts the received digital broadcast into an MPEG-2 format having a predetermined bit rate, which is one of compressed video data formats, and stores the converted digital broadcast in the digital broadcast. The included caption data is stored in association with the digital broadcast converted into the MPEG-2 format, and when played back by the playback unit 260, the MPEG-2 format digital broadcast is played back, and the associated caption data is specified. Use. The playback unit 260 can handle the associated caption data as already decoded caption data. The data format for storing the digital broadcast is not limited to MPEG-2, and may be selected from known data formats corresponding to playback. For example, the data format may be MPEG-4, QuickTime (registered trademark), FlashVideo (registered trademark), or the like. Any method and means for data compression in storage and data decoding in playback may be used.

  As described above, in the broadcast receiving apparatus according to the present invention, the recording unit 220 holds an association between a specific digital broadcast and specific subtitle data, and the playback unit 260 can handle decoded or already decoded subtitle data. it can. The data format of the digital broadcast to be stored may be anything, and a bit stream, TS, MPEG-2, or a known data format can be arbitrarily used.

  Therefore, the digital broadcast recorded by the recording unit 220 and reproduced by the reproduction unit 260 can hold subtitle data broadcast from a broadcasting station or the like regardless of the recording and reproduction data format.

  The data display unit 330 in the external device 300 performs an operation of displaying the processed conversion caption data generated by the data processing unit 320. The display can be provided to the user by, for example, a display device or the like that is appropriately provided in the external device 300. The display device or the like may be integrated with the external device 300 or may be stored in a separate housing. Therefore, the form of the external device 300 of the digital broadcast receiving system 105 according to the present invention is a network home appliance, mobile phone, remote controller, which can communicate with the receiving device 200 and incorporates a liquid crystal display or the like. Alternatively, it can be selected from a notebook personal computer or the like. Alternatively, the external device 300 may be a desktop personal computer or the like to which an external display device can be connected.

  The reproduction position instruction unit 340 in the external device 300 receives reproduction instruction information, which is an instruction of a desired reproduction position, from a user who is viewing the processed converted caption data displayed on the data display unit 330 described above. In order to receive such reproduction instruction information from the user, the reproduction position instruction unit 340 may include an input device such as a keyboard and a pointing device according to the form of the external device 300. For example, when the user designates a part of the process conversion subtitle data, the reproduction position instruction unit 340 can use the display time (PTS) associated with the designated process conversion subtitle data as the reproduction instruction information. . In addition, for example, when the user designates a part of the process conversion subtitle data, the reproduction position instruction unit 340 can use a part of the designated process conversion subtitle data as the reproduction instruction information. The received reproduction instruction information is transmitted to the reproduction unit 260 of the reception device 200.

  As described above, the playback unit 260 of the receiving device 200 plays back the recorded digital broadcast using a data format corresponding to the operation of the recording unit 220. In addition, in response to the playback instruction information received from the external device 300, the playback unit 260 plays back a specific part of the recording designated by the playback instruction information. Specifically, in response to receiving a display time (PTS) of a recording from the external device 300, the playback unit 260 starts playback of the recording from the position of the display time (PTS).

In addition to the operation of the digital broadcast receiving system 100, the digital broadcast receiving system 105 according to the present invention can perform the following operation.
(Additional operation-1) The recording unit 220 records a digital broadcast.
(Additional operation-2) The reproduction unit 260 reproduces the digital broadcast.
(Additional operation-3) The data display unit 330 displays the conversion processing caption data to the user. For example, the user can list subtitle data in a tabular format.
(Additional operation-4) The reproduction position instruction unit 340 allows the user to select and specify a specific portion desired to be reproduced. For example, the user can designate a part of the displayed process-converted caption data as a place where reproduction is desired. The designation is transmitted to the playback unit 260 as a display time (PTS) corresponding to a part of the designated process-converted caption data.
(Additional operation-5) The playback unit 260 plays back the recording from the position of the display time (PTS).

  By doing so, the user of the digital broadcast receiving system 105 according to the present invention designates a portion desired to be reproduced from the subtitle data having a list property as a part of the subtitle data having readability, and reproduces the recording. Can be made.

  Therefore, a normal subtitle is a finely divided sentence at each display timing. However, in the digital broadcast receiving system 100 or the digital broadcast receiving system 105 according to the present invention, the subtitle is displayed as a series of text using the external device 300. This makes it easier for the user to read the subtitles and grasp the contents.

  When the user selects a text part of interest from the displayed subtitles, the external device 300 transmits a PTS corresponding to the selected position to the receiving device 200. The receiving apparatus 200 starts playback from the designated PTS position. In a live broadcast program such as a news program, the display timing of subtitles may be delayed from the video, and therefore, the program may be played back about 10 to 20 seconds before the PTS corresponding to the selected position. Such a reproduction position offset or the like can be designed as appropriate.

  In the prior art, when browsing a video and searching for a necessary playback position, it is necessary to make full use of fast forward and rewind operations. In the digital broadcast receiving system 100 or the digital broadcast receiving system 105 according to the present invention, By generating subtitle text that can be displayed in a tabular format with high listability, it is possible to easily find the position of the necessary video. Therefore, it is possible to omit fast-forwarding and rewinding operations as in the prior art.

  FIG. 3 is a flowchart showing the operation of the digital broadcast receiving system 100 according to an embodiment of the present invention.

In step S10, the receiving apparatus 200 receives a digital broadcast including caption data. This digital broadcast is a digital television broadcast, a digital radio broadcast, or the like provided in the form of a broadcast wave or network distribution.
In step S30, the receiving apparatus 200 decodes the digital broadcast received in step S10. As a result, subtitle data, video, audio, various data or programs are extracted.
In step S40, the receiving apparatus 200 performs conversion prepared in advance including addition of a display time (PTS) to the caption data extracted in step S30, and generates converted caption data.
In step S50, the receiving apparatus 200 transmits the converted caption data generated in step S40 to the external device 300.
In step S110, the external device 300 receives the converted caption data transmitted from the receiving device 200 in step S50.
In step S120, the external device 300 performs a process prepared in advance on the converted caption data received in step S110, and generates processed converted caption data. For example, HTML specification tag information for listing subtitle data in a tabular format is added.

  Therefore, in the operation of the digital broadcast receiving system 100 according to the present invention, the display time (PTS) information added in step S40 of the receiving device 200 is used as the processing converted caption data generated in step S120 of the external device 300. Can be included.

  FIG. 4 is a flowchart showing the operation of the digital broadcast receiving system 105 according to an embodiment of the present invention. FIG. 4 shows an example in which the recording unit 220 of the receiving apparatus 200 records a digital broadcast in the bit stream format, but the decoded TS format, the MPEG-2 format in which the bit rate is reduced and the size is compressed, or other formats It is possible to operate in the same manner for recording by.

In step S10, the receiving apparatus 200 receives a digital broadcast including caption data.
In step S20, the receiving apparatus 200 records the digital broadcast received in step S10.
In step S30, the receiving apparatus 200 decodes the digital broadcast received in step S20.
In step S40, the receiving apparatus 200 performs conversion prepared in advance including addition of a display time (PTS) to the caption data extracted in step S30, and generates converted caption data.
In step S50, the receiving apparatus 200 transmits the converted caption data generated in step S40 to the external device 300.
In step S110, the external device 300 receives the converted caption data transmitted from the receiving device 200 in step S50.
In step S120, the external device 300 performs a process prepared in advance on the converted caption data received in step S110, and generates processed converted caption data.
In step S130, the external device 300 displays the process conversion caption data generated in step S120. For example, the process-converted caption data is displayed to the user by a display device or the like provided in the external device 300 as appropriate.
In step S140, the external device 300 accepts playback instruction information from the user based on the process-converted caption data displayed in step S130. This reproduction instruction information is, for example, a part of the processed converted caption data displayed in step S130. In step S140, the display time (PTS) corresponding to a part of such process-converted caption data is transmitted to the reproduction unit 260 of the reception device 200 as reproduction instruction information.
In step S260, receiving apparatus 200 receives the reproduction instruction information transmitted in step S140. That is, the display time (PTS) corresponding to the user's designation is received. Furthermore, the receiving apparatus 200 reproduces the recording from the position of the received display time (PTS).

  By doing in this way, in the digital broadcast receiving system 105 according to the present invention, the user selects a part of the processed converted caption data displayed on the external device 300, so that the display time ( PTS) is transmitted from the external device 300 to the receiving device 200, and the recording can be reproduced from the position of the display time (PTS).

[Example]
FIG. 5 is a diagram illustrating cooperation between a broadcast receiving device and a terminal device according to an embodiment of the present invention. FIG. 5A is a diagram showing an example in which the television receiver 80 and the terminal device 70 according to the present invention are communicably connected via the home network 40. The home network 40 may be configured by, for example, a commercially available broadband router or the like, or may be a server device or the like. FIG.5 (b) is a figure which shows the example which connected the television receiver 80 and the terminal device 70 which concern on this invention so that communication was possible directly. Preferably, the television receiver 80 includes a built-in or external hard disk device (not shown) and the like, and has a function of recording and playing back digital television broadcasts. Alternatively, instead of the television receiver 80, a combination of a hard disk recorder and a display device that can receive and record and reproduce a digital television broadcast may be used.

  5A and 5B, the television receiver 80 receives a broadcast wave from the antenna 29 and decodes it. When subtitle data is included in the broadcast wave and the television receiver 80 is set to display subtitle data, the subtitle 85 is displayed along with the video in the range of the TV screen 81. Typically, the caption 85 is a chopped sentence or phrase at each display timing. In addition, the terminal device 70 includes a display device 72. FIG. 5B shows a terminal device 70 in the form of a desktop personal computer provided with a display device 72 having an independent casing, but the display device 72 is not limited to this, and the terminal device 70 is not limited thereto. It may be incorporated in. For example, a mobile terminal device incorporating a liquid crystal display, a mobile phone, or the like may be used as the terminal device 70.

  The television receiver 80 according to the present invention displays the video together with the caption 85 on the television screen 81, and transmits the caption data to which the display time (PTS) is added to the terminal device 70. The amount of subtitle data is very small compared to the video data constituting the video scene. For example, consider a case where a digital television broadcast having a data amount of 24 megabits per second includes subtitle data of 10 full-width characters every 3 seconds. If the information amount of one character is 2 bytes, the subtitle data of 10 full-width characters is a data amount of 20 bytes. On the other hand, digital television broadcasting including caption data has a data amount of about 10 megabytes in 3 seconds. That is, the data amount of such caption data is about 1 / 500,000 of the entire data amount of digital television broadcasting including video and audio. Furthermore, the addition of the display time (PTS) to the caption data according to the present invention is sequential, and it is not particularly necessary to accumulate caption data. Therefore, even if the television receiver 80 according to the present invention is a digital home appliance with limited processing capabilities and functions, the display time (PTS) is added to the received caption data and transmitted to the terminal device 70. It is possible to implement without increasing the load.

  In the terminal device 70 according to the present invention, the television receiver 80 receives the caption data to which the display time (PTS) is added, and converts it into hypertext including HTML specification tag information that can be displayed in a tabular format, for example. The terminal device 70 can display the converted caption data on the display device 72 using an application such as a browser as appropriate. Therefore, the user can read the broadcasted caption data as information that is displayed in a tabular format and has a list property. Moreover, since the process etc. which connect with a table format using several subtitle data are implemented by the terminal device 70, the television receiver 80 does not need to process the linked text etc. For example, if a TV program with a program length of 1 hour includes subtitle data with 10 full-width characters every 3 seconds, the character data is concatenated 20 times per minute and 12000 characters are displayed in tabular form as a whole. Processing to display the screen may occur. In the present invention, since such processing is performed using the terminal device 70, the load on the television receiver 80 is not increased.

  The difference between FIG. 5A and FIG. 5B is whether the communication between the television receiver 80 and the terminal device 70 is via the home network 40 or directly connected. That is, the cooperation between the broadcast receiving device and the terminal device according to the present invention can be realized by the television receiver 80 and the terminal device 70 connected so as to be communicable. The form of communication may be wired or wireless.

  FIG. 5 shows an example in which one television receiver 80 and one terminal device 70 are communicably connected, but the number of each may be any number. For example, a plurality of terminal devices 70 are communicably connected to one television receiver 80, and each of the terminal devices 70 is arranged in different indoor locations, and the terminal device 70 is connected to the television receiver 80 at each location. Thus, the reproduction instruction information may be transmitted.

  FIG. 6 is a diagram illustrating transmission / reception of information related to caption data according to an embodiment of the present invention. 6A and 6B include a television receiver 80 and a terminal device 70 as in FIG. 5A, and these are communicably connected via the home network 40. Similarly to FIG. 5A, the television receiver 80 preferably has a function of recording and playing back a digital television broadcast in an arbitrary form.

As shown in FIG. 6A, reception, decoding, and display time (PTS) addition are performed by the television receiver 80, so that converted caption data 401 is generated from the caption data included in the broadcast. The The converted caption data 401 is transmitted from the television receiver 80 to the terminal device 70 via the home network 40. The terminal device 70 receives the transmitted converted caption data 401 as converted caption data 402.
When there is one television receiver 80 and one terminal device 70 connected to the home network 40, the converted caption data 401 and 402 can be the same. In the digital broadcast receiving system 105 and the like according to the present invention, a plurality of television receivers 80 or a plurality of terminal devices 70 may be used as components, so that the converted subtitle data 401 or the terminal device 70 transmitted from the television receiver 80 is included. The converted subtitle data 402 to be received may individually include information for specifying the receiving destination, etc., and can be designed independently.

  In the terminal device 70, processing conversion subtitle data including, for example, HTML-specific tag information for displaying a list in a tabular format is generated from the received converted subtitle data 402. Therefore, the screen display 90 of the terminal device 70 may be subtitles that can be listed by the user, unlike the subtitles 85 displayed on the television receiver 80. That is, the screen display 90 can be a display in which a plurality of subtitles 85 are sequentially arranged according to the time order.

  Next, the user can specify a location where digital broadcast reproduction is desired from the caption data included in the screen display 90. As shown in FIG. 6B, a screen display 91 indicating that a part of the screen display 90 is specified is generated by such specification from the user. The terminal device 70 transmits information on the display time (PTS) corresponding to the designation from the user included in the screen display 91 as the reproduction instruction information 411 to the television receiver 80. The reproduction instruction information 411 is transmitted to the television receiver 80 via the home network 40. The television receiver 80 receives the transmitted reproduction instruction information 411 as reproduction instruction information 412. The relationship between the reproduction instruction information 411 and 412 is the same as the relationship between the converted caption data 401 and 402 described above.

Again, in the television receiver 80, the recorded digital television broadcast is reproduced based on the reproduction instruction information 412, that is, based on the display time (PTS) information transmitted from the terminal device 70. Here, the television receiver 80 may display the caption 87 associated with the program reproduced based on the reproduction instruction information 412.
The subtitle 87 may be the same as the subtitle 85, and may include information related to being reproduced based on the reproduction instruction information 412. For example, the caption 87 may include information indicating that reproduction is being performed by designation of caption data from the user. Alternatively, the caption 87 may be process-converted caption data generated by the terminal device 70 or a part thereof. For example, the caption 87 may be set with a decoration such as a display color or size by the process-converted caption data generated by the terminal device 70. For example, a plurality of terminal devices 70 are connected to one television receiver 80, processing-converted caption data in which different display attributes are set for each terminal device 70 is generated, and caption 87 is received by television according to each display attribute. It may be displayed on the machine 80.

  FIG. 7 is a diagram illustrating an example of embedding other data in the process-converted caption data according to an embodiment of the present invention. FIG. 7A shows an example of processing converted caption data before embedding, and FIG. 7B shows an example of embedding other data.

  The screen display 90 shown in FIG. 7A is the same as the screen display 90 shown in FIG. 6A described above, and is typically a text-formatted subtitle displayed on the terminal device 70. As shown in FIG. 7A, for example, the screen display 90 includes a plurality of process-converted caption data as lines A (90-1), lines B (90-2), and lines C (90-3). .

  In the digital broadcast receiving system according to the present invention, the processing-converted caption data may be used by embedding not only simple text information but also text-format data including HTML-specific tags or other information. For example, program information (EIT: Event Information Table) or metadata may be attached to the screen display 90. Conversion of an arbitrary data format may be performed as appropriate, including conversion of a character code system. By doing so, it can be expected that the user can more easily understand the flow of the program.

  FIG. 7B shows an example of the screen display 92 in which other data is embedded in this way. For example, the screen display 92 includes a program title (92-1), corner name 1 (92-2), dialogue A (92-3), dialogue B (92-4), corner name 2 (92-5), dialogue. C (92-6) and the like are included as appropriate. The data to be embedded is not limited to the program title or corner name, but includes related information such as performers, links to homepages and related sites, and the like.

  In addition, in the generation of processed converted caption data from the converted caption data by the terminal device 70, the design of the font, character color, background, and the like can be arbitrarily set. The user can replay the recording from the selected position and view it on the television receiver 80 by clicking on the dialogue that is of interest, such as a link on a web page.

  In the prior art, all data conversion is processed by a single device such as a television receiver. However, in the present invention, the converted subtitle data can be transmitted to an external device such as the terminal device 70, and a richer user interface can be provided by using the function of the external device. In the present invention, such processing can be operated without disturbing viewing of other programs by the television receiver 80.

  Further, the embedding of other data or the conversion of the data format into the processing conversion subtitle data may be performed by converting the data into a format that can be easily used by an external device such as XML (Extensible Markup Language, JIS X 4159: 2002) specification. . For example, when an external device stores information in a database, the user searches for necessary text from multiple programs, registers a favorite scene, or uses other applications that analyze subtitles. It is also possible.

  Further, specific phrase extraction or syntactic analysis may be performed on the processed converted caption data, and information such as paragraph breaks may be added to the character information included in the processed converted caption data. For example, when the subtitle data accompanying the news program includes a word / phrase suggesting a topic change such as “next news”, the word / phrase is treated as a separator indicating a paragraph break, and the corner in FIG. A heading or the like as character data corresponding to name 1 (92-2) or corner name 2 (92-5) may be automatically generated. Alternatively, instead of the heading as character data, an additional character decoration for display on an external device may be generated and used to visually display paragraph breaks. Thus, a heading or decoration may be generated so that the user can quickly find a desired topic.

  FIG. 8 is a diagram illustrating display of process-converted subtitle data according to an embodiment of the present invention. The process-converted caption data is displayed to the user as, for example, the screen display 90 shown in FIG. 6A or the screen display 91 including the designation from the user shown in FIG. Hereinafter, the screen display 90 will be described.

  FIG. 8A is a diagram showing that the screen display 90 includes a plurality of process-converted caption data (90-1, 90-2, 90-3, etc.). These processed converted caption data (90-1, 90-2, 90-3) and the like are sequentially transmitted from the television receiver 80, and converted caption data to which the display time (PTS) is added are displayed as the display time (PTS). Or they are arranged according to the order received. Process-converted subtitle data (90-1, 90-2, 90-3, etc.) is each of the subtitles 85 that have been displayed independently when the television receiver 80 is set to display subtitle data. sell. However, in the screen display 90 of the terminal device 70 according to the present invention, these process converted subtitle data (90-1, 90-2, 90-3, etc.) are stacked as shown in FIG. It can be displayed to the user in an appropriate tabular format, such as a two-column tabular format, such as a two-page book. Therefore, the user can list and read the subtitles on the screen display 90.

  FIG. 8B is a diagram showing that a button 96 on the screen for page turning is added to control the display of the screen display 90. FIG. 8C is a diagram showing that an upward scroll button 97, a scroll bar 98, and a downward scroll button 99 are added to control the display of the screen display 90. Specifically, the button 96, the upper scroll button 97, the scroll bar 98, and the lower scroll button 99 on the screen are selected by a keyboard, a remote controller, a pointing device, or the like provided in the terminal device 70 as appropriate. It can be used for page turning in the direction or reverse direction.

  The display of the process-converted caption data of the terminal device 70 according to the present invention is not limited to these, and display control for improving the listability or readability of captions by the user and facilitating the selection of a desired caption location. Information or software parts can be arbitrarily added and used.

  FIG. 9A and FIG. 9B are diagrams illustrating another configuration example of the broadcast receiving device and the terminal device according to an embodiment of the present invention. FIG. 9A shows a configuration example of a digital broadcast receiving system having the form of the set top box 410. FIG. 9B shows a configuration example of a digital broadcast receiving system having the form of the multimedia device 420.

  The set top box 410 shown in FIG. 9A includes a television broadcast receiving unit 205 that operates as a broadcast receiving device according to the present invention, and an information processing unit 305 that operates as a terminal device according to the present invention. As a combination of the television broadcast receiving unit 205 and the information processing unit 305, for example, a combination of the receiving device 200 and the external device 300 illustrated in FIG. 2 can be used. In the set top box 410, these combinations can be built in the same housing. Therefore, for example, the connection between the data transmission unit 250 and the data reception unit 310 may be a connection using a bus line or the like, omitting the network communication interface circuit or the like. The television broadcast receiving unit 205 provides video to the user by the display device 82 via a known video signal output circuit or the like. As the display device 82, a television receiver or a monitor device having a video signal input terminal can be used. The information processing unit 305 may include a liquid crystal display device and a key device for presenting process-converted caption data to the user and specifying a desired caption portion from the user.

  The multimedia device 420 shown in FIG. 9B includes a television broadcast receiving unit 205 that operates as a broadcast receiving device according to the present invention, an information processing unit 305 that operates as a terminal device according to the present invention, and an information processing device 365. . As the information processing device 365, for example, a personal computer provided with the display device 72 may be used. Alternatively, a multimedia device 420 may be a hard disk video recorder or the like incorporating a digital television receiving circuit and a video output circuit. The display device 72 may be provided with a video area 76 for displaying digital television broadcast video and a text display area 78 for displaying processed conversion subtitle data. Therefore, the user uses the video area 76 displayed on the display device 72 as the screen of the television receiver 80 shown in FIG. 6A, while the text display area 78 displayed on the same display device 72 is used. It can be used as the screen display 90 shown in FIG.

  FIG. 10 is a diagram showing an example in which a recording is reproduced according to designated subtitle data according to an embodiment of the present invention.

  FIG. 10A shows a digital broadcast receiving system including a television receiver 80 as a broadcast receiving device according to the present invention and a mobile terminal device 77 as a terminal device. The television receiver 80 is preferably provided with a built-in type or an external hard disk device or the like, as in the example shown in FIG.

  The portable terminal device 77 communicates with the television receiver 80 via the home network 40 shown in FIG. In order to improve portability, the portable terminal device 77 may include a touch screen 79 instead of a keyboard or the like as means for inputting information by the user. That is, the touch screen 79 has a function of accepting an input for the user to specify desired caption data, in addition to a function of displaying the processed conversion caption data displayed to the user by the operation of the mobile terminal device 77.

  For example, the user scrolls the processing-converted subtitle data displayed on the touch screen 79 up and down by moving the fingertip that is in contact with the surface of the touch screen 79 in the vertical direction. Instructions may be entered. In addition, for example, the user may designate the part of the process-converted caption data that is in contact with the fingertip as the part of the caption that is desired to be recorded and reproduced by moving the fingertip that is in contact along the left-right direction. The user interface relating to page feed, scrolling, and designation of desired subtitle data for processing conversion subtitle data is not limited to these and can be designed as appropriate.

  When specifying the playback start position, the user looks at the list of processed conversion subtitle data displayed on the mobile terminal device 77 and touches the touch screen 79 along the direction in which the subtitle data character strings representing a desired subtitle portion and the like are arranged. You may make it designate subtitle data by sliding the fingertip which is in contact. The portable terminal device 77 converts the PTS information corresponding to the subtitle data designated in this way into reproduction instruction information and transmits it to the television receiver 80. The television receiver 80 reproduces the recorded program from the location corresponding to the received reproduction instruction information. In this way, the digital broadcast receiving system according to the present invention can reproduce a recorded program from a predetermined location in response to a user's operation on the touch screen 79 of the portable terminal device 77.

FIG. 10B shows a digital broadcast receiving system including a multimedia device 420 including functions of a broadcast receiving device and a terminal device according to the present invention, and a display device 72. The multimedia device 420 preferably includes an information processing device 365 and displays video, text, and the like using the display device 72 as in the example shown in FIG. As shown in FIG. 10B, the multimedia device 420 includes a video area 76 and a text display area 78 in the display area of the display device 72. The video area 76 displays digital television broadcast video, and the text display area 78 displays processed conversion subtitle data.
In the example shown in FIG. 10B, the display device 72 may be a touch screen similar to the portable terminal device 77 shown in FIG. The user may designate a part where reproduction is desired by touching the subtitles displayed in the text display area 78 with a fingertip as appropriate and selecting a part thereof.
Any form of the multimedia device 420 may be used. For example, a notebook PC, a tablet PC, a mobile phone terminal or the like having a built-in television reception function can be arbitrarily used. For example, the digital reception program according to the present invention may be prepared as application software for a notebook PC incorporating a television reception tuner.

  As described above, in the digital broadcast receiving system according to the present invention, by providing processing conversion subtitle data having a list property to the user, the user can easily find a place where reproduction is desired and start recording. Playback can be instructed.

  FIG. 11 is a diagram illustrating various system configurations according to an embodiment of the present invention. A digital broadcast receiving system 110 illustrated in FIG. 11 includes a television receiver 80, a terminal device 70, a home network 40, a terminal device 74, a terminal device 75, a power line connection adapter 510, an indoor power wiring 500, an electronic device 520 with a display unit, and the like. As appropriate.

  The terminal device 74 is, for example, a remote controller with a display unit, a music player with a display unit, a mobile phone terminal, or the like capable of bidirectionally communicating with the television receiver 80 via the home network 40 or the like. It is a portable terminal device. The terminal device 75 is, for example, a notebook computer or tablet personal computer having the same function as the terminal device 70, a network terminal, an electronic notebook, a video player, a personal digital assistant (PDA), a word processor, or the like. is there.

  In the digital broadcast receiving system 110 shown in FIG. 11, the difference from the example shown in FIG. 5A is that a network connection via the indoor power wiring 500 is added. The electronic device with display 520 can receive or convert subtitle data transmitted via the indoor power wiring 500 by independently connecting or incorporating the power line connection adapter 510.

  In the digital broadcast receiving system 110 shown in FIG. 11, the display-equipped electronic device 520 may only receive the converted caption data from the television receiver 80 and display the converted caption data on each display unit. For example, the user listens to the sound reproduced by the television receiver 80 while moving indoors, sometimes looks at the display unit of the electronic device with display unit 520 arranged in various places, and finds subtitle data to be worried about Alternatively, the television receiver 80 may be instructed at a location where recording / playback is desired by operating the portable terminal device 77 at hand.

  Furthermore, audio input, audio analysis, and the like may be provided in an external device for the television receiver 80, such as the terminal devices 70, 74, and 75, and the electronic device 520 with a display unit, and the reproduction instruction information may be generated by audio. For example, the user may generate the playback instruction information by voice even when both hands are occupied due to cooking or the like. That is, the user may speak a character string or the like included in the processed conversion subtitle data displayed on the external device by voice, generate playback instruction information from this voice, and specify the playback start position of recording.

  As mentioned above, although demonstrated using embodiment of this invention, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the above embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

29 Antenna 70, 74, 75 Terminal device 72 Display device 76 Video area 77 Mobile terminal device 78 Text display area 80 TV receiver 81, 82 TV screen 85, 87 Subtitle 90, 91, 92 Screen display 100, 105, 110 Digital broadcasting Receiving system 200, 205 Receiving device 210 Broadcast receiving unit 220 Recording unit 230 Decoding unit 240 Subtitle converting unit 250 Data transmitting unit 260 Reproducing unit 290 Receiving device control unit 300, 305 External device 310 Data receiving unit 320 Data processing unit 330 Data display unit 340 Playback position instruction unit 365 Information processing device 390 External device control unit 401, 402 Converted caption data 411, 412 Processed converted caption data 420 Multimedia device 500 Indoor power wiring 510 Power line connection adapter 520 Display unit Can electronic equipment

Claims (7)

A digital broadcast receiving system for receiving subtitle data broadcast by digital broadcasting,
The digital broadcast receiving system includes at least one broadcast receiving device and a terminal device that is communicably connected to the broadcast receiving device,
The broadcast receiving device is:
A digital broadcast receiver for receiving digital broadcasts;
A digital broadcast decoding unit for decoding the caption data from the digital broadcast;
A converted subtitle data generating unit that generates converted subtitle data from the decoded subtitle data using a conversion program prepared in advance;
A converted subtitle data transmission unit for transmitting the converted subtitle data to the terminal device,
The digital broadcast receiving system. Furthermore, the terminal device
A converted subtitle data receiving unit for receiving the converted subtitle data transmitted from the broadcast receiving device;
A processing conversion subtitle data generation unit that generates time conversion subtitle data by adding time information to the subtitle data with respect to the received conversion subtitle data,
The digital broadcast receiving system according to claim 1. The process converted caption data generation unit further performs a process of adding program information, a process of adding metadata, or a process of converting to a predetermined data format for the received converted caption data. Features
The digital broadcast receiving system according to claim 2.   The receiving system according to claim 3, wherein the predetermined data format includes either hypertext or an extensible markup language. The terminal device further includes a processing conversion subtitle data transmission unit that transmits the processing conversion subtitle data to the broadcast receiving device,
The broadcast receiving device further includes:
A digital broadcast recording and reproducing unit for recording and reproducing the digital broadcast received by the digital broadcast receiving unit;
A processing conversion subtitle data receiving unit that receives the processing conversion subtitle data transmitted from the terminal device;
A process conversion subtitle data reproduction unit for reproducing the received process conversion subtitle data,
The digital broadcast decoding unit decodes the caption data from the digital broadcast reproduced by the digital broadcast recording and reproduction unit,
The digital broadcast receiving system according to claim 3. The terminal device further includes:
A display unit for displaying the information including the converted subtitle data received by the converted subtitle data receiving unit or the information generated by the processing converted subtitle data generating unit;
A reproduction position instruction for receiving an instruction based on the information displayed by the display unit and generating reproduction position information to be associated with the instruction and the time information and transmitted to the broadcast receiving device via the processing conversion caption data transmission unit And comprising
The broadcast receiving apparatus reproduces the digital broadcast recorded in the digital broadcast recording / reproducing unit from a position corresponding to the associated time information based on the reproduction position information generated by the reproduction position instruction unit. It is characterized by
The digital broadcast receiving system according to claim 5. A digital broadcast receiving program for receiving subtitle data broadcast by digital broadcasting,
The digital broadcast receiving program is
In a digital broadcast receiving system comprising at least one broadcast receiving device and at least one terminal device connected to be able to communicate with each other,
A digital broadcast receiver for receiving digital broadcasts;
A digital broadcast decoding unit for decoding the caption data from the digital broadcast;
A converted subtitle data generating unit that generates converted subtitle data from the decoded subtitle data using a conversion program prepared in advance;
A converted subtitle data transmission unit for transmitting the converted subtitle data to the terminal device, and causing a computer to function as the broadcast receiving device,
A converted subtitle data receiving unit for receiving the converted subtitle data transmitted from the broadcast receiving device;
A computer comprising: a process conversion subtitle data generation unit that performs predetermined processing on the received conversion subtitle data to generate process conversion subtitle data, and causing the computer to function as the terminal device.
The digital broadcast receiving program.

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