JP2007116223A - Broadcast receiving method and broadcast receiving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology of simply adding functions of selecting the program of a broadcast station of television and radio broadcasting and enabling a user to view/listen to the program to a media reproduction software program so as not to degrade operability by the user. <P>SOLUTION: A broadcast receiving apparatus includes: a file identification section 3 for analyzing information of a file selected by a file selection section 1 to determine a broadcast system and a channel selection destination; a channel selection section 4 for tuning an external broadcast signal on the basis of the broadcast system and the channel selection destination determined by the file identification section 3; a reproduction control section 6 having a plurality of data decoding means for decoding data of the broadcast signal tuned and received by the channel selection section 4 in response to the format of the broadcast system; and a reproduction procedure control section 7 for making the reproduction control section 6 select the data decoding means suitable for the broadcast system determined by the file identification section 3 from among the plurality of data decoding means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a broadcast receiving method and a broadcast receiving apparatus, and more particularly to a technique for selecting a broadcast such as a television or radio in various devices such as OA devices and home appliances.

  In recent years, media playback software has been installed in OA devices such as personal computers and home appliances. This media playback software is for decoding and playback of stream streams in a plurality of formats including video, audio and other digital data. A typical example is Windows (registered trademark) Media Player manufactured by Microsoft Corporation. In this software, it is necessary to identify the format type of a stream sequence including video, audio and other digital data. As format type identification means, a stream string is input as a file, and is identified by an extension added to the file name, or is identified by analysis of a stream string header. Then, reproduction control corresponding to the format type of the identification result is performed, and reproduction of the input stream sequence is realized (for example, see Patent Document 1).

In the type of selecting and viewing broadcasts such as television and radio, a channel selection means is installed. In this case, it is necessary to input channels such as channels and buttons that can be selected.
Japanese Patent Laid-Open No. 2003-152546 (page 6-8, FIG. 1-2)

  In the above-mentioned conventional technology, when adding a function for selecting and viewing a broadcast such as a television or radio to the media playback software, a channel that can be selected by software having only a file input system. Minute input system must be added, and the software structure becomes complicated.

  In addition, input systems with different handling methods are mixed, and there is a problem that user convenience deteriorates.

  The present invention solves the above-mentioned problem, and easily adds a function for selecting and viewing a broadcast such as a television or radio to the media playback software, and does not reduce the usability of the user. Objective.

The broadcast receiving method according to the present invention includes:
Selecting a file;
Analyzing information of the selected file and determining a broadcasting system and a channel selection destination;
Tuning a broadcast signal from the outside based on the determined broadcasting method and channel selection destination;
Decoding the broadcast signal data that is tuned and input in accordance with the determined format of the broadcast method;
Outputting the decoded signal.

  In this broadcast receiving method, when a file is selected by a user operation, a broadcast method and a channel selection destination are determined from information of the selected file, and a broadcast signal is tuned and input according to the broadcast method and the channel selection destination. The signal data is decoded in accordance with the determined format of the broadcasting system, and the decoded signal is output to a monitor, a speaker, or the like for viewing.

The broadcast receiving apparatus according to the present invention includes:
A file selection section for selecting a file;
A file identification unit that analyzes information of the file selected by the file selection unit and determines a broadcasting method and a channel selection destination;
A channel selection unit that tunes an external broadcast signal based on the broadcast method and channel selection destination determined by the file identification unit;
A reproduction control unit having a plurality of data decoding means for decoding the data of the broadcast signal that is tuned and input by the channel selection unit in accordance with the determined format of the broadcast method;
A reproduction procedure control unit that selects a data decoding unit suitable for the broadcasting scheme determined by the file identification unit among the plurality of data decoding units is provided.

  In the above, the channel selection unit supports reception of a plurality of broadcast systems, and the file identification unit tunes the broadcast system determined by analyzing file information and the broadcast signal from the channel selection destination. The channel selection unit is controlled as described above.

  In this configuration, the file selection unit selects a file by a user operation, the file identification unit determines a broadcasting method and a channel selection destination from the information of the selected file, and the channel selection unit determines according to the determined broadcasting method and channel selection destination. Tune the broadcast signal. The broadcast system determined by the file identification unit is given to the playback procedure control unit, and the playback procedure control unit selects a data decoding unit suitable for the determined broadcasting system from among a plurality of data decoding units. The reproduction control unit decodes the received broadcast signal using the selected data decoding unit.

  According to this, even with media playback software that is not supposed to select and view TV, radio or other broadcasts, if a file is selected, the channel selection destination is identified by the information of the file, and the broadcast Tuning becomes possible. Therefore, it is not necessary to add an input system for selectable channels to the software, and a function for viewing a broadcast can be easily realized. The user only has to select a file in the same way as the existing media playback software, and the user-friendliness is not reduced.

  In the above, there is an aspect in which the file identification unit has a readable / writable database in which file information is associated with a broadcasting method and a channel selection destination determined by analyzing the information. According to this, even if the broadcasting system or broadcasting station increases or decreases in the future, it becomes possible to cope by rewriting the database that associates the file information with the broadcasting system and the channel selection destination.

  Further, in the above, there is an aspect in which the file identification unit has means for analyzing directory information in which the selected file exists and determining a broadcasting method and a channel selection destination. According to this, by analyzing the directory information in which the selected file exists and determining the broadcasting system and the channel selection destination, it becomes possible to manage the broadcasting system area management and the channel selection destination list for each directory.

  Further, in the above, there is an aspect in which the file identification unit has means for analyzing information of the selected file and identifying additional information of the broadcast signal. According to this, by analyzing the information of the selected file, it becomes possible to manage additional information such as EPG (electronic program guide), bilingual broadcasting, subtitle broadcasting and the like.

  Further, in the above, there is an aspect in which the file identification unit determines a broadcasting system and a channel selection destination according to the frequency with which the file is selected. According to this, since the broadcasting system and the channel selection destination are determined based on the frequency of selection of the file, it becomes possible to easily set the broadcasting system and the channel selection destination that match the user's preference. For example, the user-preferred program can be automatically selected at the time of starting the media playback software, and convenience is improved.

  In addition, in the above, the file identification unit creates a file for each channel selection destination that the channel selection unit can currently receive, and the file is in a format capable of identifying the channel selection destination. . According to this, it is possible to receive in the area where the user is present by searching for a currently receivable channel selection destination and creating a file in a format that can be identified for each channel selection destination that is found to be receivable. Even if the channel selection destination is unknown, a list of the channel selection destinations that can be received is listed as a file, and after that, the channel can be selected by selecting the file.

  According to the present invention, even in media playback software that is not supposed to select and view television, radio, or other broadcasts, if a file is selected, the channel selection destination is identified by the information of the file, and the broadcast is performed. Tuning of becomes possible. Therefore, it is not necessary to add an input system for selectable channels to the software, and a function for viewing a broadcast can be easily realized. In addition, the user only has to select a file in the same manner as the existing media playback software, and the user-friendliness is not reduced.

  Embodiments of a broadcast receiving apparatus according to the present invention will be described below in detail with reference to the drawings.

(Embodiment 1)
A broadcast receiving apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of the broadcast receiving apparatus in the first embodiment. In FIG. 1, 1 is a file selection unit, 2 is a file input unit, 3 is a file identification unit, 4 is a channel selection unit, 5 is a signal input unit, 6 is a playback control unit, 7 is a playback procedure control unit, and 8 is a video output. , 9 is an audio output unit, 10 is a broadcasting system correspondence table, 11 is a one-segment DTV channel selection correspondence table, 12 is an FM radio channel selection correspondence table, and 13 is a reproduction control correspondence table.

  The file selection unit 1 allows a user to select a file existing on a memory or a network, and has a function of acquiring a file name and an extension of the selected file.

  The file input unit 2 acquires the contents of the file selected by the file selection unit 1 and passes it to the file identification unit 3.

  The file identification unit 3 acquires the file name and extension of the file selected by the user by the file selection unit 1.

  The channel selection unit 4 has a role of receiving each broadcasting system existing in the broadcasting system column of the broadcasting system correspondence table 10 via wireless or wired communication.

  The file identification unit 3 checks the broadcast system correspondence table 10 and, if the acquired extension exists in the extension column, determines the broadcast system corresponding to the extension and receives the broadcast system. 4 is controlled. The file identification unit 3 further checks the channel selection correspondence table 11 or 12 corresponding to the determined broadcasting system, and if the acquired file name exists in the file name column, the channel selection destination ( The channel selection unit 4 is controlled so as to tune the channel selection destination.

  The signal input unit 5 receives the broadcast signal tuned by the channel selection unit 4 and converts it into digital data corresponding to the determined broadcasting system, if necessary, or divides it into video data and audio data. Have.

  The reproduction control unit 6 has a plurality of data decoding means for receiving the data of the broadcast signal from the signal input unit 5 and decoding each corresponding to the format of each broadcasting system.

  The reproduction procedure control unit 7 receives the broadcast system determined from the file identification unit 3, checks the reproduction control correspondence table 13, and determines data decoding means corresponding to the determined broadcast system. The reproduction control unit 6 has a role of controlling the determined data decoding means to operate.

  The video output unit 8 has a function of acquiring the decoded video data from the playback control unit 6 and outputting the video data to a TV monitor or the like.

  The audio output unit 9 has a function of acquiring the audio data decoded from the reproduction control unit 6 and outputting the audio data to a speaker or the like.

  FIG. 2 shows an example of a broadcast system correspondence table 10 for associating extensions with broadcast systems. FIG. 3 shows an example of the one-segment DTV channel selection correspondence table 11 and the FM radio channel selection correspondence table 12 for associating the file name with the channel selection destination. The channel selection correspondence table exists for each broadcasting method existing in the broadcasting method correspondence table 10. FIG. 4 shows an example of the reproduction control correspondence table 13 for associating the broadcasting system with the data decoding means.

  Next, the operation of the broadcast receiving apparatus of the present embodiment configured as described above will be described with reference to the flowchart of FIG. Here, it is assumed that the file shown in FIG. The extension of this file is “1SEG” and the file name is “2”. When the extension is not compatible with the broadcast system, the contents of the file are treated as a stream string, as in standard media playback software, and the data decoding means is determined based on the extension. Perform playback.

  First, in step S1, the file selection unit 1 selects a file shown in FIG. 6 by a user operation, and acquires the file name “2” and the extension “1SEG”. Further, the file input unit 2 acquires the contents of the selected file and transmits the information to the file identification unit 3.

  Next, in step S <b> 2, the file identification unit 3 confirms whether or not the extension “1SEG” exists in the extension column of the broadcast system correspondence table 10. When it does not exist, it progresses to step S3, and when it exists, it progresses to step S8.

  In step S3, it is checked whether or not the extension “1SEG” exists in the data decryption means. If it does not exist, the process proceeds to step S5, error processing is performed, and the operation is terminated. On the other hand, if it exists, the process proceeds to step S4, and it is checked whether or not the content of the file matches the data decryption means. If they do not match, the process proceeds to step S5, error processing is performed, and the operation is terminated. On the other hand, if they match, the process proceeds to step S6 to construct reproduction control suitable for the decoding method, and proceeds to step S7 to start reproduction.

  If the extension “1SEG” is present in the extension column of the broadcast format correspondence table 10 in step S2, the process proceeds to step S8, where the one-segment DTV (for mobile devices) that is a broadcast format corresponding to the extension “1SEG” is entered. The channel selection unit 4 is controlled so as to receive (common name of digital television).

  Next, in step S9, the file identification unit 3 refers to the one-segment DTV channel selection correspondence table 11 and confirms that the file name “2” exists in the file name column. Then, the channel selection unit 4 is controlled so as to tune the channel 2 that is the channel selection destination corresponding to the file name “2”.

  Next, in step S10, the tuning unit 4 receives control from the file identification unit 3, receives the one-segment DTV broadcast, and operates to tune the channel 2.

  Next, in step S <b> 11, the playback procedure control unit 7 receives the one-segment DTV broadcast from the file identification unit 3, and confirms that the one-segment DTV broadcast exists in the broadcast system column of the playback control correspondence table 13. Then, the playback control unit 6 is controlled so as to operate the decoding of the H.264 format and the decoding of the MPEG2-AAC format, which are data decoding means corresponding to the one-segment DTV broadcast. The signal input unit 5 receives the tuned transport stream of one-segment DTV broadcast from the channel selection unit 4, divides it into H.264 format video data and MPEG2-AAC format audio data, and passes them to the playback control unit 6.

  Next, in step S12, the playback control unit 6 receives the video data and the audio data, and executes a decoding process, respectively. The video output unit 8 receives the decoded video data from the reproduction control unit 6 and outputs it to the TV monitor while synchronizing with the audio output unit 9. The audio output unit 9 receives the decoded audio data from the reproduction control unit 6 and outputs it to the speaker while synchronizing with the video output unit 8.

  By selecting the file named “2.1SEG” shown in FIG. 6 according to the above procedure, it is interpreted that the channel 2 of the one-segment DTV broadcast is viewed, and the broadcast can be viewed.

  As described above, according to the present embodiment, by selecting a file, file information such as a file name and an extension is used to determine a broadcast method and a channel selection destination that the user wants to view. As a result, when realizing the function of viewing broadcasts such as TV and radio with existing media playback software, it is not necessary to add an input system for selectable channels to the software, and the function of viewing broadcasts Can be realized easily.

  Further, the user only has to select a file in the same manner as in the existing media playback software, and the user's usability is not reduced.

  In addition, by adding a new extension and a new broadcast system corresponding to the extension to the broadcast system correspondence table 10, it is possible to select reception of a new broadcast system. On the other hand, by deleting the existing extension of the broadcasting system correspondence table 10 and the broadcasting system corresponding to the extension, it becomes possible to prohibit the reception of the broadcasting system thereafter.

  Further, by adding a new file name and a new channel selection destination to the channel selection correspondence table 11, it becomes possible to select reception of a broadcast signal from the new channel selection destination. On the contrary, by deleting the existing file name in the channel selection correspondence table 11 and the channel selection destination corresponding to the file name, it becomes possible to prohibit the reception of broadcast signals from the channel selection destination thereafter.

  As a result, even if the number of broadcasting systems and channel selection destinations increases or decreases in the future, it is possible to rewrite the database that associates the file information with the broadcasting method and channel selection destination determined by analyzing the information. Is possible.

  In this embodiment, the broadcasting system is determined by the file extension and the channel selection destination is determined by the file name. However, the present invention is not limited to this method, and information added to the file. Any object can be used as long as the same purpose can be achieved.

(Embodiment 2)
Next, the broadcast receiving apparatus in Embodiment 2 of this invention is demonstrated. In this embodiment, FIG. 1, FIG. 3, and FIG. 4 of Embodiment 1 are used. FIG. 7 shows a broadcast system correspondence table 14 for associating a directory and a broadcast system in the present embodiment.

  The file selection unit 1 shown in FIG. 1 allows a user to select a file existing on a memory or a network, and has a role of acquiring a file name of the selected file and a directory name where the file exists.

  The file identification unit 3 acquires the file name of the file selected by the user from the file selection unit 1 and the directory name where the file exists.

  The channel selection unit 4 has a role of receiving each broadcasting system existing in the broadcasting system column of the broadcasting system correspondence table 14 via wireless or wired communication.

  The file identification unit 3 checks the broadcast system correspondence table 14 and, if the acquired directory name exists in the directory string, determines the broadcast system corresponding to the directory name and receives the broadcast system. To control. The file identification unit 3 further checks the channel selection correspondence table 11 or 12 corresponding to the determined broadcasting system, and if the acquired file name exists in the file name column, the channel selection destination ( The channel selection unit 4 is controlled so as to tune the channel selection destination.

  Thereafter, the signal input unit 5, the reproduction control unit 6, the reproduction procedure control unit 7, the video output unit 8, and the audio output unit 9 operate in the same manner as in the first embodiment.

  Next, the operation of the broadcast receiving apparatus of the present embodiment configured as described above will be described with reference to the flowchart of FIG. Here, it is assumed that the files and directories shown in FIG. According to FIG. 9, it is assumed that the file “2” is selected among the three types of directories “1SEG” and “1”, “2”, and “3”. . If the directory in which the selected file exists does not support the broadcasting system, the contents of the file are treated as a stream string and the data decoding means is determined based on the extension, as with standard media playback software. The stream sequence is reproduced.

  First, in step S21, the file selection unit 1 selects a file named “2” existing in a directory named “1SEG” shown in FIG. 9 by a user operation, and the file name “2” and the directory name are selected. “1SEG” is acquired and the information is transmitted to the file identification unit 3.

  Next, in step S <b> 22, the file identification unit 3 confirms whether or not the directory name “1SEG” exists in the directory column of the broadcast system correspondence table 14. When it does not exist, it progresses to step S23, and when it exists, it progresses to step S28.

  In step S23, it is checked whether or not the extension “1SEG” exists in the data decryption means. If it does not exist, the process proceeds to step S25 to perform error processing and end the operation. On the other hand, if it exists, the process proceeds to step S24, and it is checked whether or not the content of the file matches the data decryption means. If they do not match, the process proceeds to step S25, where error processing is performed and the operation is terminated. On the other hand, if they match, the process proceeds to step S26 to construct reproduction control suitable for the decoding method, and proceeds to step S27 to start reproduction.

  If the directory name “1SEG” is present in the directory column of the broadcast system correspondence table 14 in step S22, the process proceeds to step S28 to receive the one-segment DTV that is the broadcast system corresponding to the extension “1SEG”. The tuning unit 4 is controlled.

  Next, in step S29, the file identification unit 3 refers to the one-segment DTV channel selection correspondence table 11 and confirms that the file name “2” exists in the file name string. Then, the channel selection unit 4 is controlled so as to tune the channel 2 that is the channel selection destination corresponding to the file name “2”.

  Next, in step S30, the tuning unit 4 receives control from the file identification unit 3, receives the one-segment DTV broadcast, and operates to tune the channel 2.

  Next, in step S31, the reproduction procedure control unit 7 receives the one-segment DTV broadcast from the file identification unit 3, and confirms that the one-segment DTV broadcast exists in the broadcast system column of the reproduction control correspondence table 13. Then, the playback control unit 6 is controlled so as to operate the decoding of the H.264 format and the decoding of the MPEG2-AAC format, which are data decoding means corresponding to the one-segment DTV broadcast. The signal input unit 5 receives the tuned transport stream of one-segment DTV broadcast from the channel selection unit 4, divides it into H.264 format video data and MPEG2-AAC format audio data, and passes them to the playback control unit 6.

  Next, in step S32, the playback control unit 6 receives the video data and the audio data, and executes a decoding process, respectively. The video output unit 8 receives the decoded video data from the reproduction control unit 6 and outputs it to the TV monitor while synchronizing with the audio output unit 9. The audio output unit 9 receives the decoded audio data from the reproduction control unit 6 and outputs it to the speaker while synchronizing with the video output unit 8.

  By selecting the file named “2” existing in the directory named “1SEG” shown in FIG. 9 according to the above procedure, it is interpreted that the channel 2 of the one-segment DTV broadcast is viewed, and Allows viewing.

  As described above, according to the present embodiment, the selection of the broadcast system that the user wants to view is realized by using the file name and directory information. As a result, when realizing the function of viewing broadcasts such as TV and radio with existing media playback software, it is not necessary to add an input system for selectable channels to the software, and the function of viewing broadcasts Can be realized easily.

  Further, the user only has to select a file in the same manner as in the existing media playback software, and the user's usability is not reduced.

  Furthermore, it becomes possible to manage the broadcasting area and the list of channel selection destinations for each directory.

  In this embodiment, the broadcasting system is determined based on the directory in which the file exists, and the channel selection destination is determined based on the file name. However, the present invention is not limited to this method, and the directory and the file are included. Any information can be used as long as the same purpose can be achieved from the added information.

(Embodiment 3)
Next, the broadcast receiving apparatus in Embodiment 3 of this invention is demonstrated. In the present embodiment, FIGS. 1 to 6 of the first embodiment are used.

  FIG. 10 shows the contents of the file according to the third embodiment. The contents of the file are managed by dividing them into file header # 1 and file header # 2. In FIG. 10, the file header # 1 secures the upper 3 bytes of the contents of the file, and the file header # 2 secures the subsequent 2 bytes. However, the present invention is not limited to such a number of bytes.

  FIG. 11 shows an example of the additional information distinction table 15 for associating the description of the file header # 1 with the type of additional information corresponding thereto. FIG. 12 shows an example of additional information detail tables 16 to 18 that exist for each type of additional information. 16 is a bilingual broadcast additional information detail table, 17 is a caption broadcast additional information detail table, and 18 is a program URL additional information detail table.

  As described in the first embodiment, the broadcasting method and the channel selection destination are determined by the file name and extension of the file selected by the file selection unit 1.

  Further, the file input unit 2 acquires the contents of the selected file and passes it to the file identification unit 3. If the description of the file header # 1 obtained from the contents of the file exists in the file header # 1 column of the additional information discrimination table 15, the file identification unit 3 adds the information corresponding to the additional information associated with the file header # 1. The information detail tables 16 to 18 are referred to. The file identification unit 3 refers to the file header # 2 acquired from the contents of the file and the additional information detail tables 16 to 18, and acquires the details of the additional information in the broadcast of the channel selection destination of the determined broadcasting method. it can.

  In order to explain a specific operation, a specific example of the file shown in FIG. 13 is used. The file name is “2”, the extension is “1SEG”, the file header # 1 is “AAA”, and the file header # 2 is “AB”.

  When the file selection unit 1 selects the file shown in FIG. 13 by a user operation, as described in the first embodiment, the information of the file name “2” and the extension “1SEG” is used for the channel 2 of the one-segment DTV. The broadcast receiving apparatus operates so as to perform viewing.

  Further, the file input unit 2 acquires the contents of the selected file and passes it to the file identification unit 3. The file identification unit 3 acquires information that the file header # 1 is “AAA” and the file header # 2 is “AB” from the contents of the file. The file identification unit 3 confirms that “AAA” as the file header # 1 exists in the file header # 1 column of the additional information distinction table 15. Then, information “bilingual broadcasting”, which is the type of additional information corresponding to “AAA”, is acquired. The file identification unit 3 refers to the additional information detail table 16 corresponding to “bilingual broadcasting” and confirms that “AB” which is the file header # 2 exists in the file header # 2 column. Then, information “Japanese and English”, which is a bilingual broadcast type corresponding to “AB”, is acquired.

  By the above procedure, it can be seen that the channel 2 of the one-segment DTV broadcast is viewed and the broadcast is a bilingual broadcast of Japanese and English.

  As described above, according to the present embodiment, it is possible to acquire additional information of a broadcast that the user wants to view by using the information of the file header # 1 and the file header # 2 of the contents of the file. Yes.

  This makes it possible to easily know the contents of the additional information by associating the file information with the additional information of the broadcast to be viewed when realizing the function of viewing broadcasts such as TV and radio with existing media playback software. Become.

  In the present embodiment, the broadcast additional information is determined from the file header # 1 and the file header # 2 included in the file. However, the present invention is not limited to this method, and is added to the file. Any information can be used as long as the same purpose can be achieved from the information.

(Embodiment 4)
Next, a broadcast receiving apparatus according to Embodiment 4 of the present invention will be described. In the present embodiment, FIGS. 1 to 6 of the first embodiment are used.

  FIG. 14 shows an example of the file selection frequency table 19 for associating the file selected by the file selection unit 1 with the number of times the file has been selected in the fourth embodiment.

  As described in the first embodiment, the broadcasting method and the channel selection destination are determined by the file name and extension of the file selected by the file selection unit 1.

  Furthermore, the file selection unit 1 checks whether the selected file exists in the file sequence of the file selection frequency table 19. If it exists, the selection frequency corresponding to the file is incremented by 1 (+1). If it does not exist, the line of the selected file is added to the file column of the file selection frequency table 19 and the selection frequency corresponding to the added file is set to “1”.

  With the above procedure, the selection frequency of the selected file can be known by referring to the selection frequency table 19.

  As described above, according to the present embodiment, it is possible to grasp the frequency of file selection by managing the number of times a file is selected, and to specify a file with a high selection frequency.

  In this way, by specifying in advance the files that are frequently selected, when the media playback software starts up, the user can automatically select and view the broadcasting system and tuning destination that suits the user's preference, Can be distinguished as.

(Embodiment 5)
Next, a broadcast receiving apparatus according to Embodiment 5 of the present invention will be described. In the present embodiment, FIGS. 1 to 6 of the first embodiment are used.

  FIG. 15 shows an example of the tuning destination list 20 as a result of searching for the tuning destinations of the one-segment DTV that can be received by the tuning unit 4 according to the fifth embodiment. FIG. 16 shows an example of the correspondence table 21 in which file names corresponding to the channel selection destination list 20 as a result of the search are associated.

  The channel selection unit 4 searches for channel selection destinations that can be currently received for each broadcasting system, and creates a channel selection destination list 20 as a result of the search. The file identification unit 3 acquires the channel selection destination list 20 from the channel selection unit 4 and creates a file in a format that allows the file identification unit 3 to identify the channel selection destination for each channel selection destination.

  Thereafter, when the user selects the created file, it is possible to view the channel selection destination as a result of the search, as in the procedure described in the first embodiment.

  In order to explain a specific operation, a specific example in the one-segment DTV is used.

  The channel selection unit 4 acquires a channel selection destination list 20 shown in FIG. 15 as a result of searching for a channel selection destination of the one-seg DTV that can be currently received. The file identification unit 3 acquires the tuning destination list 20 from the tuning unit 4. Then, a file is created for each channel selection destination shown in the channel selection destination list 20. The file created at this time is created in a format that allows the file identification unit 3 to identify the channel selection destination. The correspondence table 21 of the file created by the channel selection destination and the file identification unit 3 is as follows.

  Thereafter, if the user selects the file “1.1 SEG” in the correspondence table 21 created by the file identification unit 3, the user views the channel 1 of the one-segment DTV as in the procedure described in the first embodiment. It becomes possible.

  As described above, according to the present embodiment, the channel selection destination searched for each broadcasting method is created as a file in a format that can be identified by the file identification unit 3, and thereafter the user creates the file created above. By selecting, it is possible to automatically select the corresponding channel selection destination. As a result, even if the channel selection destination is unknown for each broadcasting system, once the channel search destination is searched for, the channel can be selected by selecting the file thereafter.

  The broadcast receiving apparatus of the present invention is useful as a simple and easy-to-operate technique for selecting a broadcast such as a television or radio in various devices such as OA devices and home appliances.

The block diagram which shows the structure of the broadcast receiver in Embodiment 1-5 of this invention. FIG. 4 is an exemplary diagram of a broadcast format correspondence table in the broadcast receiving device according to Embodiments 1 to 3 of the present invention. FIG. 4 is an exemplary diagram of a channel selection correspondence table in the broadcast receiving device according to the first to fifth embodiments of the present invention. FIG. 5 is a view showing an example of a reproduction control correspondence table in the broadcast receiving apparatus in the first to fifth embodiments of the present invention. The flowchart which shows operation | movement of the broadcast receiving apparatus in Embodiment 1 of this invention. Exemplary file for explaining the operation of the broadcast receiving apparatus according to Embodiment 1 of the present invention FIG. 5 is a view showing an example of a broadcast system correspondence table in the broadcast receiving apparatus according to Embodiment 2 of the present invention. The flowchart which shows the operation | movement of the broadcast receiver in Embodiment 2 of this invention. Example of file and directory for explaining operation in broadcast receiving apparatus in embodiment 2 of the present invention FIG. 10 is an exemplary diagram of the contents of a file in the broadcast receiving apparatus according to Embodiment 3 of the present invention. FIG. 10 is an exemplary diagram of an additional information discrimination table for associating types of additional information in the broadcast receiving apparatus according to Embodiment 3 of the present invention Exemplary diagram of additional information detail table existing for each type of additional information in the broadcast receiving apparatus according to the third embodiment of the present invention. Exemplary file for explaining the operation of the broadcast receiving apparatus according to the third embodiment of the present invention FIG. 6 is an exemplary diagram of a file selection frequency table in the broadcast receiving apparatus according to Embodiment 4 of the present invention. FIG. 10 is an exemplary diagram of a channel selection destination list of a search result of a one-segment DTV in a broadcast receiving apparatus according to Embodiment 5 of the present invention. FIG. 10 is a view showing an example of a file correspondence table of search results of one-segment DTV in the broadcast receiving apparatus according to the fifth embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 File selection part 2 File input part 3 File identification part 4 Channel selection part 5 Signal input part 6 Playback control part 7 Playback procedure control part 8 Video output part 9 Audio output part 10,14 Broadcast system correspondence table 11 One-segment DTV channel selection correspondence Table 12 FM Radio Channel Selection Correspondence Table 13 Playback Control Correspondence Table 15 Additional Information Discrimination Table 16-18 Additional Information Detail Table 19 File Selection Frequency Table 20 Channel Selection Destination List 21 File Correspondence Table

Claims (8)

Selecting a file;
Analyzing information of the selected file and determining a broadcasting system and a channel selection destination;
Tuning a broadcast signal from the outside based on the determined broadcasting method and channel selection destination;
Decoding the broadcast signal data that is tuned and input in accordance with the determined format of the broadcast method;
Outputting a decoded signal. A file selection section for selecting a file;
A file identification unit that analyzes information of the file selected by the file selection unit and determines a broadcasting method and a channel selection destination;
A channel selection unit that tunes an external broadcast signal based on the broadcast method and channel selection destination determined by the file identification unit,
A reproduction control unit having a plurality of data decoding means for decoding the data of the broadcast signal that is tuned and input by the channel selection unit in accordance with the determined format of the broadcast method;
A broadcast receiving apparatus comprising: a reproduction procedure control unit that selects a data decoding unit suitable for the broadcasting method determined by the file identification unit among the plurality of data decoding units. The channel selection unit supports reception of a plurality of broadcasting systems,
The broadcast receiving apparatus according to claim 2, wherein the file identification unit controls the channel selection unit to tune a broadcast method determined by analyzing file information and a broadcast signal from a channel selection destination.   4. The broadcast receiving apparatus according to claim 2, wherein the file identification unit has a readable / writable database in which file information is associated with a broadcasting method and a channel selection destination determined by analyzing the information.   The broadcast receiving apparatus according to any one of claims 2 to 4, wherein the file identification unit includes means for analyzing directory information in which the selected file exists and determining a broadcast method and a channel selection destination.   The broadcast receiving apparatus according to any one of claims 2 to 5, wherein the file identification unit includes means for analyzing information of the selected file and identifying additional information of the broadcast signal.   The broadcast receiving apparatus according to any one of claims 2 to 6, wherein the file identification unit determines a broadcasting system and a channel selection destination according to a frequency with which a file is selected.   The file identification unit creates a file for each channel selection destination that the channel selection unit can currently receive, and the file has a format capable of identifying the channel selection destination. The broadcast receiving apparatus in any one.

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