JP2006279115A - Program recorder/reproducer and program recording/reproducing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a program recorder/reproducer in which a user receives a desired program selectively among programs being broadcasted with reference to program data recorded in the past and enjoys its service content. <P>SOLUTION: A CPU 1 stores broadcast program data in an HDD 4 along with the EPG data of that program, reproduces specified program data depending on reproduction start operation and displays its video image at a display output section 11, reads out keywords included in the EPG data of specified program data sequentially from a RAM 3, selects the program of an arbitrary channel being broadcasted, and when a keyword matching the keyword read out from the RAM 3 is retrieved from the EPG data of that program, displays detailed data included in the EPG data of that program at the display output section 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a program recording / playback apparatus and program recording / playback processing program, and more particularly to a program recording / playback apparatus and program recording / playback processing program for recording identification data related to the program together with program data.

Currently, BS (broadcast satellite) digital broadcast and CS (communication satellite) digital broadcast are being carried out as digital television broadcasts. Furthermore, terrestrial digital broadcasting started in some areas in December 2003. Broadcasting will be digitized in all regions of the country after 2011. In such digital TV broadcasts, as in analog TV broadcasts, video data is not broadcast with a news bulletin or caption supervision, and separately from the video / audio data of the program, control data and news related to the program are transmitted. Packets such as breaking letters are sent as data broadcasts. On the receiving side, control data related to the program can be recorded as packet data together with the program data.
For example, in a proposal of a recording / reproducing apparatus and method for digital broadcasting according to a certain patent document, received packet data is descrambled and then recorded in a packet state. Therefore, since control data for indicating program information, control data for indicating the current time, control data for identifying packets, and the like can be recorded, recording and reproduction can be performed without impairing the satellite broadcasting function based on the control data. It can be carried out. That is, interactive service contents can be restored. (See Patent Document 1)
Japanese Unexamined Patent Publication No. 2000-243029

However, in Patent Document 1, it is possible to restore interactive service contents. However, the recorded program data and the currently broadcasted program data are associated with each other so that It is impossible to selectively receive a desired program and enjoy the service contents.
The present invention is to solve such a conventional problem, and refers to program data recorded in the past and selectively receives a program desired by a user from currently broadcasted programs. The purpose is to enjoy the service contents.

  The program recording / playback apparatus according to claim 1 includes first program related information (implementation) in which broadcasted program data is included in identification data (corresponding to EPG data in the embodiment) related to the program. In the form, it corresponds to the detailed data of the recorded program) and the program storage control means (in the embodiment, the CPU 1 in FIG. 1) stored in the first storage means (in the embodiment, corresponds to the HDD 4 in FIG. 1). Reproduction control for reproducing the program data stored in the first storage means and displaying the video on a predetermined display means (corresponding to the display output unit 11 in FIG. 1 in the embodiment). Means (corresponding to the CPU 1 in FIG. 1 in the embodiment) and one or more keywords included in the identification data related to the program data are stored in the second storage means (in the embodiment) Data storage control means (corresponding to the CPU 1 in FIG. 1 in the embodiment) stored in the RAM 3 of FIG. 1 and second storage means for keywords corresponding to the reproduction of program data by the reproduction control means The data reading means (corresponding to the CPU 1 in FIG. 1 in the embodiment) and the program of an arbitrary channel being broadcast are selected and read out by the data reading means in the identification data related to the program. When a keyword matching the keyword is searched, the second program related information (corresponding to the detailed data of the current program in the embodiment) included in the identification data related to the program is displayed on the display means. It is configured to include data search means for displaying (in the embodiment, corresponding to the CPU 1 in FIG. 1).

  In the program recording / reproducing apparatus according to claim 1, as described in claim 2, the data search means includes the first program related information and the second program related information together with the video data reproduced by the reproduction control means. It may be configured to display at least one of them.

According to a third aspect of the present invention, there is provided a program recording / playback processing program comprising: first program related information in which broadcast program data is included in identification data (corresponding to EPG data in the embodiment) related to the program. (Corresponding to the detailed data of the recorded program in the embodiment) and stored in the first storage means (corresponding to the HDD 4 in FIG. 1 in the embodiment) and the first storage means Included in the identification data related to the program data and step B for reproducing the program data and displaying the video on a predetermined display means (corresponding to the display output unit 11 in FIG. 1 in the embodiment). Corresponding to step C for storing one or more types of keywords in the second storage means (corresponding to the RAM 3 in FIG. 1 in the embodiment) and program data reproduction in step B. Step D for reading a keyword from the second storage means and a program of an arbitrary channel being broadcasted are selected, and a keyword matching the keyword read by Step D is searched for in identification data related to the program. In this case, the step E of displaying on the display means the second program related information (corresponding to the detailed data of the current program in the embodiment) included in the identification data related to the program is displayed on the computer. Let it run.
Steps A to E correspond to the processing of the CPU 1 executed in FIGS. 5 to 7 in the embodiment.

  In the program recording / playback processing program of claim 3, as described in claim 4, step E includes at least one of the first program related information and the second program related information together with the video data played back in step B. You may make it the structure which displays one.

  According to the program recording / playback apparatus and program recording / playback processing program of the present invention, a program desired by a user is selectively received from currently broadcasted programs with reference to program data recorded in the past. The service content can be enjoyed.

Embodiments of a program recording / playback apparatus according to the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of a program recording / playback apparatus according to the embodiment. The CPU 1 includes a ROM 2, a RAM 3, an HDD (hard disk drive) 4, a user I / F (interface) unit 5, a communication unit 6, a tuner unit 8, an OFDM (orthogonal frequency division multiplexing) demodulation unit 9, and a decoder unit via a system bus. 10. Connected to the display output unit 11, and exchanges data and instructions with these units to control the entire recording / reproducing apparatus.

  The ROM 2 stores programs executed by the CPU 1 and initial data in advance. The RAM 3 is a work area of the CPU 1 and is provided with areas such as registers, flags, and variables necessary for program execution. The HDD 4 includes a hard disk and its drive circuit, and stores video and audio of program data according to a recording command. The user I / F unit 5 is, for example, a remote controller having a switch group, and inputs a channel selection instruction, a program data recording instruction, a reproduction instruction, and the like to the CPU 1 in accordance with a user operation. The communication unit 6 communicates with an external server, for example, a server of a service company acting on behalf of recording a program via the network N.

  The tuner unit 8 selects and outputs the OFDM television signal of the channel corresponding to the channel selection signal from the CPU 1 from the radio wave of the broadcast station received from the antenna 7. The OFDM demodulator 9 demodulates the OFDM television signal output from the tuner 8 and outputs an encoded digital television signal. The decoder unit 10 decodes the encoded digital television signal output from the OFDM demodulator 9 and separates it into an audio signal, a video signal, and character information, and outputs the audio signal to the audio output unit 12. Information is output to the display output unit 11. The character information includes EPG (Electronic Program Guide) data which is identification data related to the program. Further, the EPG data includes various keywords related to the program. These keywords are recorded in the HDD 4 as EPG data together with the program data, and the keywords extracted from the EPG data are stored in the RAM 3.

  FIG. 2 is a diagram showing comparison keywords stored in the area of the RAM 3. The stored keywords include genre keywords representing the genre of a program, sub-genre keywords representing a sub-genre, program name keywords representing a program name, and cast keywords representing a performer name. Examples of genre keywords include sports programs, news, dramas, movies, and music programs. Examples of sub-genre keywords include soccer, baseball, golf, motor sports, and tennis in the case of sports programs.

  FIG. 3 shows a plurality of EPG data epgdata [1], epgdata [, which are stored in the HDD 4 together with the recorded data and stored in the RAM 3 area different from the comparison keyword area shown in FIG. 2].. Each EPG data includes a time representing the time from the beginning of the program, a genre_kw representing the genre of the program, a sub_genre_kw representing the sub-genre, a program_kw representing the program name, a cast_kw representing the name of the performer, an outline of the program, a commentary on the scene, and appearance "Detail" that contains detailed data such as a person's profile is included.

Next, the operation of the CPU 1 in the program recording / playback apparatus of FIG. 1 will be described based on the flowcharts shown in FIGS.
FIG. 4 is a flowchart of the main routine of the CPU 1. After the predetermined initialization process (step SA1), the setting process (step SA2), the recording process (step SA3), the reproduction process (step SA4), and other processes (step SA5) are repeatedly executed.

In the setting process, a keyword acquisition mode, a display mode, and the like are set according to the operation of the user I / F unit 5. In the acquisition mode, for example, “strict acquisition” for acquiring all the keywords of the program genre, sub-genre, program name, and performer name, or “loose acquisition” for acquiring only the keywords of the genre and performer name. Set whether or not. In setting the display mode, the screen of the display output unit 11 is not divided into one screen display, or divided into two to display two screens, or one screen display or two screen display is automatically switched. Set The display mode is set by register disp of RAM3.
Stored in disp = 0 is a one-screen display, disp = 2 is a two-screen display, and disp = 1 is an automatic switching display.

  FIG. 5 is a flowchart of the recording process in step SA3 in the main routine. It is determined whether or not an instruction to start recording is given from the user I / F unit 5 (step SB1). If this instruction is not given, the process returns to the main routine. If this instruction is given, EPG data is designated. The variable idx is set to 1, and the time time from the start of the program is set to 0 and initialized (step SB2). Thereafter, image data and audio data are recorded in the HDD 4 (step SB3). While recording, it is determined whether or not the EPG data acquisition timing has been reached (step SB4). When the acquisition timing is reached, EPG data is acquired (step SB5), and based on the acquisition mode set in the setting process, the genre, sub-genre, program name and performer name, or genre and performer are obtained. The name is determined as a keyword (step SB6). The keyword is determined by, for example, storing word data of keyword candidates in the ROM 2 or RAM 3 in advance and extracting matching word data from the text data of the EPG data. Next, it is determined whether or not there is a change in the detailed data of the EPG data (step SB7). If there is a change, as shown in FIG. 3, epgdata [idx] specified by the variable idx is created. Then, idx is incremented (step SB8). That is, in epgdata [idx], the performer whose time from the start of the program at time is the genre determined as genre_kw, the sub-genre determined as sub_genre_kw is the program name determined as program_kw, and the cast is determined as cast_kw Detailed data acquired from the EPG data is set in the name “detail”. After the process of step SB8, or when it is not the acquisition timing of EPG data in step SB4, or when there is no change in the EPG data in step SB7, time is updated (step SB9). Next, it is determined whether or not an instruction to end recording is given from the user I / F unit 5 (step SB10). If this instruction is not given, the process proceeds to step SB3 and recording of image data and audio data is continued. To do. On the other hand, when an instruction to end recording is given, the process returns to the main routine of FIG.

  FIG. 6 is a flowchart of the reproduction process in step SA4 in the main routine. It is determined whether or not an instruction to start reproduction is given from the user I / F unit 5 (step SC1). If this instruction is not given, the process returns to the main routine. When this instruction is given, EPG data is designated. The variable idx is set to 1, and the time time from the start of the program is set to 0 to initialize (step SC2). Thereafter, the image data and audio data are read from the HDD 4 and reproduced (step SC3). During reproduction, it is determined whether or not the EPG data acquisition timing has been reached (step SC4). When the acquisition timing is reached, it is determined whether or not the time is equal to or less than the time of epgdata [idx + 1] next to epgdata [idx] currently specified by idx (step SC5). When the time of time exceeds the time of time of epgdata [idx + 1], idx is incremented (step SC6), and the time of time is again the time of time of epgdata [idx + 1] in step SC5. It is determined whether or not: If the time is less than or equal to the time of epgdata [idx + 1], since the epgdata [idx] corresponding to time has been determined, the EPG display process of the channel being broadcast is performed (step SC7). After this EPG display processing, or when it is not the acquisition timing of EPG data in step SC4, the image data of the reproduced recording data is displayed (step SC8). Then, time is updated (step SC9). Next, it is determined whether or not an instruction to end reproduction is given from the user I / F unit 5 (step SC10). If this instruction is not given, the process proceeds to step SC3 to continue reading image data and audio data. To do. On the other hand, when an instruction to end reproduction is given, the process returns to the main routine of FIG.

  FIG. 7 is a flowchart of the EPG display process of step SC7 in the reproduction process of FIG. A variable n for designating a channel to be received is set to 1 (step SD1), and a program of EPG data matching the epgdata [idx] of the reproduced recorded data is broadcast in the loop processing from step SD2 to step SD6. Find the channel you ’re on. That is, EPG data of channel ch [n] is acquired (step SD2), and based on the acquisition mode set in the setting process (step SA2 in FIG. 4), the genre and sub-genre that are keywords of the acquired EPG data Then, the program name and performer name, or the genre and program name are determined (step SD3). The keyword is determined by the same method as step SB6 of the recording process (FIG. 5). Further, the detailed data acquired from the EPG data of channel ch [n] is stored in the area detail2 on the RAM 3. Next, it is determined whether or not the keyword determined in step SD3 matches the corresponding keyword of epgdata [idx] (step SD4). If the keywords do not match, the value of n is incremented (step SD5), and it is determined whether or not the value of n has exceeded the number of channels CHMAX (step SD6). If the value of n is less than or equal to CHMAX, the process moves to step SD2 and the above loop processing is repeated.

  On the other hand, if the value of n exceeds CHMAX, that is, if the keywords do not match in all channels, it is determined whether or not the value of the variable disp in the display mode is 2 (two-screen display mode) ( Step SD7). When the value of disp is 0 (single screen display mode) or 1 (automatic conversion display mode), a single screen layout is set and the recording detail data is displayed on the display output unit 11 (step SD8). FIG. 8 shows a display format of one screen layout. As shown in the figure, together with the video of the recording data, the detailed recording data, that is, the outline of the program, the explanation of the scene, the profile of the performer, etc. stored in detail of epgdata [idx] are displayed.

  In step SD7, when the value of disp is 2, a two-screen layout is set, and the recording detail data (detail of epgdata [idx]) is displayed on the display output unit 11 on the recording data screen (step SD9). . FIG. 9 shows a display format of a two-screen layout. The display output unit 11 is divided into a screen area D1 for recording data and a screen area D2 for current broadcasting. However, in this case, since there is no matching keyword in all channels, only the video of the recording data and the recording detail data are displayed in the screen area D1, and nothing is displayed in the screen area D2. Such a display can clearly indicate to the user that there is no matching keyword in all channels.

During the loop processing from step SD2 to step SD6, when the channel ch [n] that broadcasts the program of EPG data that matches the keyword of epgdata [idx] of the recorded data is searched in step SD4, the display mode It is determined whether or not the value of the variable disp is 0 (single screen display mode) (step SD10). If the value of disp is 0, a one-screen layout is set and the detailed data of ch [n] is displayed (step SD11). That is, detailed data (detail 2 created in step SD3) acquired from the EPG data of ch [n] is displayed on the screen of FIG. 8 instead of the detailed recording data. Meanwhile, disp
When the value of 1 is 1 (automatic conversion display mode) or 2 (two-screen display mode), a two-screen layout is set, and as shown in FIG. Detailed recording data (detail of epgdata [idx]) is displayed, and detailed data (detail2) of ch [n] is displayed in the screen area D2 for the current broadcast (step SD12).
After the data is displayed in any of steps SD8, 9, 11, and 12, the process returns to the flowchart of the reproduction process in FIG.

As described above, according to this embodiment, the CPU 1 stores the broadcast program data in the HDD 4 together with the EPG data related to the program, and reproduces the user I / F unit 5 from the stored program data. In response to the start operation, the designated program data is reproduced and the video is displayed on the display output unit 11, and one or more types of keywords included in the EPG data related to the designated program data are selected. When a program of an arbitrary channel being read is selected from the RAM 3 according to the time data time, and a keyword matching the keyword read from the RAM 3 is searched for in the EPG data related to the program, Detailed data included in the related EPG data is displayed on the display output unit 11.
Therefore, by referring to program data recorded in the past, it is possible to selectively receive a program desired by the user from currently broadcasted programs and enjoy the service contents.

In this case, when the set display mode is the two-screen display mode, the CPU 1 displays the screen of the display output unit 11 together with the video that reproduces the detailed data included in the EPG data related to the recorded program. Detailed data included in the EPG data related to the program of the current broadcast channel is displayed in the area D1 and displayed in the screen area D2 of the display output unit 11.
Therefore, the service content of the program desired by the user can be easily enjoyed.

  In the above-described embodiment, the invention of the apparatus in which the CPU 1 executes the program recording / playback processing program stored in advance in the ROM 2 has been described. However, an external storage medium such as a flexible disk (FD), CD, MD, or memory card Can be installed in the HDD 4 or other non-volatile memory, or a program downloaded from the network N can be installed in the non-volatile memory, and the CPU 1 can execute the program. In this case, the invention of the program and the invention of the recording medium on which the program is recorded can be realized.

That is, a program recording / playback processing program according to the present invention is:
Step A for storing the broadcast program data in the computer together with the first program related information included in the identification data related to the program in the first storage means, and the first storage means stored in the first storage means Step B for reproducing the program data and displaying the video on a predetermined display means; Step C for storing one or more types of keywords included in the identification data related to the program data in the second storage means; A step D for reading a keyword from the second storage means corresponding to the reproduction of the program data in the step B, a program of an arbitrary channel being broadcasted, and the step in the identification data related to the program When a keyword matching the keyword read by D is searched, the second program related information included in the identification data related to the program is retrieved. A step E to be displayed on said display means, is executed.

  The step E displays at least one of the first program related information and the second program related information together with the video data reproduced in the step B.

The block diagram which shows the structure in embodiment of this invention. The figure which shows the keyword memorize | stored in RAM3 of FIG. The figure which shows the content of the EPG data recorded on HDD4 of FIG. 1, and memorize | stored in RAM3 at the time of reproduction | regeneration. The flowchart of the main routine of CPU of FIG. The flowchart of the video recording process in FIG. The flowchart of the reproduction | regeneration processing in FIG. The flowchart of the EPG display process in FIG. The figure which shows the 1 screen layout displayed on the display output part of FIG. The figure which shows the 2 screen layout displayed on the display output part of FIG.

Explanation of symbols

1 CPU
2 ROM
3 RAM
4 HDD
5 User I / F unit 6 Communication unit 7 Antenna 8 Tuner unit 9 OFDM demodulation unit 10 Decoder unit 11 Display output unit 12 Audio output unit N Network

Claims (4)

Program storage control means for storing the broadcast program data in the first storage means together with the first program related information included in the identification data related to the program;
Playback control means for playing back the program data stored in the first storage means and displaying the video on a predetermined display means;
Data storage control means for storing one or more types of keywords contained in identification data related to program data in the second storage means;
Data reading means for reading a keyword from the second storage means in response to reproduction of the program data by the reproduction control means;
When a program of an arbitrary channel being broadcast is selected and a keyword matching the keyword read by the data reading means is searched for in the identification data related to the program, the identification data related to the program Data search means for displaying second program related information included in the display means;
A program recording / playback apparatus comprising:   The said data search means displays at least one of the said 1st program relevant information and the said 2nd program relevant information with the video data reproduced | regenerated by the said reproduction | regeneration control means. Program recording / playback device. On the computer,
Storing the broadcasted program data in the first storage means together with the first program related information included in the identification data related to the program;
Replaying the program data stored in the first storage means and displaying the video on a predetermined display means;
Storing one or more types of keywords included in the identification data related to the program data in the second storage means;
A step D of reading a keyword from the second storage means corresponding to the reproduction of the program data in the step B;
When a program of an arbitrary channel being broadcast is selected and a keyword matching the keyword read out in the step D is searched for in the identification data related to the program, the identification data related to the program is displayed. Displaying the included second program related information on the display means; and
A program recording / playback processing program for executing   4. The program recording according to claim 3, wherein the step E displays at least one of the first program related information and the second program related information together with the video data reproduced in the step B. Playback processing program.

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