KR19980026928A - Broadcast guide signal recording device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recorder capable of random access, wherein the broadcast guide signal recording apparatus records broadcast guide information in a predetermined area on the disc and allows the user to view the disc during playback. The apparatus of the present invention includes means for extracting broadcast guide information included in an input broadcast video signal, control means for controlling storage, reading and writing of the guide data extracted by the extracting means, and the control. Memory means for storing the guide data extracted by the extraction means under control of the means, and means for reading the guide data stored in the memory means under the control of the control means and recording the guide data in a predetermined area on the disc. Equipped. According to the present invention, the user can accurately recognize the recording target program guide information at the time of reproduction, and can prevent waste of the recording area during recording of the guide information.

Description

Broadcast guide signal recording device

1 is a timing diagram showing an example of a broadcast signal according to a conventional Korean broadcast system (KBPS).

2 is a block diagram showing a schematic configuration of a conventional program guide information display apparatus.

3 is a block diagram showing a schematic configuration of a broadcast guide signal recording apparatus according to an embodiment of the present invention.

4 is a flow chart for explaining a broadcast guide signal recording process by the apparatus of FIG.

5 is a block diagram showing a schematic configuration of a broadcast guide signal recording apparatus according to another embodiment of the present invention.

FIG. 6 is a flowchart for explaining a process of recording only program target data of a recording target among broadcast guide signals by the apparatus of FIG.

7 is a flowchart for explaining a broadcast guide signal recording process to which the editing step of broadcast guide data is added in FIG.

* Description of the symbols for the main parts of the drawings *

1 switch 2 data extraction unit

3: system control unit 4: data storage unit

5: display processing unit 6: adder

7: recording signal processor 8: recording head

9: magnetic tape 10: playhead

11 reproduction signal processing unit 12 data replacement unit

21: image signal processing unit 22: guide data extraction unit

23: control unit 24: guide data storage memory

25: video signal / guide data recording unit 31: key input means

32: recording program guide data extraction unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast guide information recording apparatus. In particular, in a disc recording / reproducing apparatus capable of random access, the broadcast guide information is recorded in a predetermined area on the disc so that the user can view the guide information during disc playback. A broadcast guide signal recording apparatus.

Currently, Korean TV broadcasting is being implemented by Korean Broadcasting Program System (hereinafter referred to as KBPS) based on Teletext. That is, as shown in FIG. 1, in a television broadcasting station, as shown in FIG. 1, the broadcasting station has a non-visible line between the visible lines, for example, the nth of the vertical blanking interval, for example, a vertical blanking interval. Example: 16th) A line contains 2 bytes of data per horizontal section. This data includes clock data, broadcast station names (e.g., channel data), weeks of broadcast programs for each channel, and the like.

In addition to the above-mentioned KBPS, a system for processing broadcast guidance information includes a video program system for analog broadcasting, a video recorder programming by teletext, and an electronic program guidance system for digital broadcasting. There are various methods such as (Electronic Program Guide System).

A typical system for processing such broadcast guide information displays an on-screen display (hereinafter referred to as an OSD) on a TV screen for data such as a station name, a broadcast time, and a title of a program currently being broadcast to a viewer. To help. When the broadcast program is recorded by a magnetic recording / playback apparatus such as a video cassette recorder (VCR), the broadcast guide data at the time of recording is recorded as it is, but at the time of playback, the guide data at the time of recording is regarded as historical data. As a result, no processing is performed on the screen. Accordingly, when a user plays and watches a recorded program after a considerable period of time, the user cannot know what program is recorded, when each program was recorded, what channel, and how long it takes. In order to know the information about the recorded program, it was usually difficult to label the cassette tape recording the recording information or to manually record and store the information.

In order to solve such a problem, the present applicant, Korean Patent Application No. 96-14271, discloses an apparatus for recording broadcast program guide information on a magnetic recording medium and displaying recording target program guide information during playback. In addition, the apparatus of the patent application extracts and records only the program information to be recorded when recording the program guide information on the magnetic recording medium, and makes it possible to quickly and accurately check the recorded program information during playback.

2 is a block diagram showing the configuration of the above-described program guide information display apparatus. In the apparatus of FIG. 2, the switching unit 1 selects a video signal containing program guide information which is switched according to a user's selection or a control signal CTRL of a system and output through an external input or selects a playback video signal. Output to the data extraction section 2, the adder 6 and the recording signal processing section 7 is made. The data extraction section 2 separates and extracts only program guide data from the video signal, and the extracted program guide data is stored in the data storage section 4 under the control of the system control section 3. Specifically, the system control unit 3 reads out the corresponding data from the data stored in the data storage unit 4 according to the user's request or the control signal CTRL of the system and outputs the data to the display processing unit 5. The data storage section 4 stores and updates the program guide data extracted by the data extraction section 2 under the control of the system control section 3 and outputs the selected data. Subsequently, the display processing section 5 performs OSD processing on the program guide data provided through the system control section 3, converts the signal into a displayable signal and outputs it to the adder 6. The adder 6 adds the original image signal from the switching section 1 to the corresponding program guide data processed by the OSD from the display processing section 5 to form a display signal. Accordingly, the user can check the guide information of the currently displayed program on the screen.

In the above apparatus, when recording program information on a recording medium, for example, when recording a VCR, the video signal output through the switching unit 1 in the recording signal processing unit 7 is converted into a recording signal for VCR and then recorded. The magnetic tape 9 is written through the head 8. On the other hand, when the broadcast program guide information is reproduced on a recording medium, for example, when the VCR is reproduced, a signal recorded on the magnetic tape 9 is read out through the reproduction head 10 and the signal is reproduced by the reproduction signal processing unit 11. The signal is recovered to the data extraction unit 2 through the switching unit 1 by restoring the signal. Therefore, if the user is currently watching or recording, the guide information of the currently broadcast program is displayed. On the other hand, the guide information of the playback program can be viewed as OSD characters on the screen.

However, if the transmission speed is low and the data volume is large, such as KBPS data, it takes a lot of time for all information to be transmitted. Therefore, a lot of recording time is required for recording and the program may not be processed immediately after the start of playback. In order to solve this problem, the present patent application further provides a data substitution unit 12. That is, when recording a video signal to a VCR, only the data of the program to be recorded is extracted from the program guide data, and replaced with all program data portions of the video signal containing the program data, and only the data is repeatedly recorded and played back. The data is processed quickly. Specifically, the data replacement unit 12 replaces the program guide data of the original video signal input through the switching unit 1 with the guide data of the corresponding program input from the system control unit 3 and replaces the data with the original video signal. By repeatedly inserting into the program guide data portion of the program, only the data of the program to be recorded is repeatedly recorded on the magnetic tape 9.

However, the above-described patent application has a problem of causing waste of the recording area because the program information is recorded on the recording medium and recorded together with the video signal and repeatedly recorded when the program to be recorded is recorded. This problem is caused by the fact that the recording medium is a magnetic tape. The present invention solves the above problems by applying the case where the recording medium is a disc based on the technical idea of the patent application.

Accordingly, it is an object of the present invention to provide a broadcast guide signal recording apparatus for recording a broadcast guide information in a predetermined area on a disc and allowing a user to view it during reproduction in a disc recording apparatus capable of random access.

It is another object of the present invention to provide a broadcast guide signal recording apparatus which prevents wasting of a recording area by extracting and recording only guide information of a recording target from a broadcast video signal in a predetermined region on a disc and displaying only the guide information of a recording target during playback. will be.

It is still another object of the present invention to record and record only the guide information desired by the user in recording the target information to be recorded in a predetermined area on the disc, or to directly input the desired content by the user to display the recorded guide information during playback. It is to provide a broadcast guide signal recording apparatus to increase the convenience of.

In order to achieve the above object, the broadcast guide signal recording apparatus of the present invention includes means for extracting broadcast guide information included in an input broadcast video signal, and storing and reading the guide data extracted by the extracting means. And control means for controlling writing, memory means for storing the guide data extracted by the extraction means under control of the control means, and guide data stored in the memory means under control of the control means. Means for reading out and writing to a predetermined area on the disc.

In addition, the broadcast guide signal recording apparatus of the present invention includes means for extracting only the program guide data selected by the user from the broadcast guide information included in the input broadcast video signal, and the program guide data extracted by the extracting means. Control means for controlling the storage and reading and writing of the program, memory means for storing the program guide data extracted by the extraction means under the control of the control means, and the memory means under the control of the control means. And means for reading out the program guide data stored in the recording medium and recording the program guide data in a predetermined area on the disk. In addition, the apparatus is further provided with a key input means connected to the control unit so that the user directly inputs the guide data in order to record the guide data of the recording target program selected by the user with the desired content.

The above and other objects and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3 to 7.

3 is a block diagram showing the basic configuration of the broadcast guide information recording apparatus according to an embodiment of the present invention. The apparatus of FIG. 3 includes a video signal processor 21 for processing an image signal among broadcast signals transmitted from a broadcasting station, a guide data extractor 22 for extracting only broadcast guide data from the video signal, and the guide data extractor. Control unit 23 for controlling the storage of the broadcast guide data extracted in (22) and the reading and / or writing of the stored data, the program guide extracted by the guide data extraction unit 22 under the control of the control unit 23 Guide data storage memory 24 for storing and updating data, and corresponding data read from guide data storage memory 24 under the control of the control unit 23 and the video signal from the video signal processor 21; And a video signal / guide data recording section 25 for recording on the optical disk.

In the embodiment of the present invention configured as described above, the broadcast signal containing the broadcast guide data is input to the video signal processor 21 and the guide data extractor 22 through a tuner or an external input means, respectively, the guide data extractor Reference numeral 22 extracts the guide data from the broadcast video signal input during recording, and extracts the guide data from the reproduced video signal during playback. The guide data extracted by the guide data extracting unit 22 is stored in the guide data storage memory 24 under the control of the control unit 23. Here, if the guide data is KBPS-related data as shown in FIG. 1, the 'n' (e.g., 16th) 1 horizontal line in which the KBPS-related data of the video signal is loaded is received by the guide data extraction unit 22. Only pure data is separated. In other words, the guide data extracting unit 22 extracts only the pure data portion except for the 503 CRI portion and the sync portion included in the one horizontal line, and guides the data storage memory 24 through the control unit 23. ). Here, the data includes broadcast station names such as channel data, broadcast order of several weeks for each channel such as broadcast program data, guide data, current time, and the like. The guide data storage memory 24 functions to store and update guide data extracted by the guide data extraction unit 22 under the control of the controller 23 and to output selected data.

The controller 23 reads out the guide data from the data stored in the guide data storage memory 24 according to a user's request or a control signal of the system, and transmits the guide data to the video signal / guide data recording unit 25. The video signal / guide data recording unit 25 records the corresponding guide data in a predetermined area on the optical disc, that is, in a table of contents (TOC) area. When recording to the TOC area, as described below, only the recording target guide information is extracted and recorded, but only the desired guide information (for example, the name and time of the recording target program) is selected and recorded, or the key input means (not shown) is recorded. You can also let the user enter the desired content.

Subsequently, the display processing unit (not shown) converts the guide data into a displayable signal by OSD processing, and then combines the guide data with the original image signal from the image signal processing unit 21 to form a display signal. Accordingly, the user can check the guide information of the currently displayed program through the screen.

Here, if the program guide data is KBPS-related data, each broadcasting program containing KBPS-related data is assigned a unique On-Air, so that the allocated On-Air ID is recorded together with the broadcasting program at the time of recording. . Therefore, during playback, the guide data extracting unit 22 and the control unit 23 extract the KBPS related data in the reproduced video signal, store them in the guide data storage memory, and check the on-air ID to match the on-air ID. When data is read from the guide data storage memory 24 and displayed, only the program guide data to be reproduced can be viewed.

FIG. 4 is a flowchart for facilitating an understanding of a broadcast guide information recording process according to an embodiment of the present invention shown in FIG. Referring to FIG. 4, first, broadcast guide information carried on a broadcast video signal during recording by an optical disc recording / reproducing apparatus such as a VDR, that is, in a recording mode, is extracted from the guide data extracting unit 22, and under the control of the control unit 23. FIG. The guide data storage memory 24 is stored. Subsequently, it is checked whether or not recording is completed, and if recording is completed, the control unit 23 reads out the corresponding data from the stored guide data and causes the video signal / guide data recording unit 15 to record it in the TOC area of the optical disc. .

5 shows a broadcast guide signal recording apparatus according to another embodiment of the present invention. The apparatus of FIG. 5 replaces the guide data extractor 22 of FIG. 3 with the recorded program guide data extractor 32 in order to display only the program target data selected by the user among the broadcast guide information included in the broadcast signal. Further, a key input means 31 is provided for allowing the user to directly input the program guide data selected by the user as desired contents and to record it in the TOC area on the optical disc. Since the remaining components are the same as those in FIG. 3, the same reference numerals are used, and a detailed description of the configuration and operation will be omitted.

In another embodiment of the present invention configured as described above, the broadcast signal containing the broadcast program guide data is input to the video signal processor 21 and the recorded program guide data extractor 32 through a tuner or an external input, respectively, for recording. The program guide data extraction unit 32 extracts only the recorded program guide data from the broadcast video signal input during recording, and extracts the recorded program guide data from the reproduced video signal during playback. The recording target program guide data extracted by the recorded program guide data extracting unit 32 is stored in the guide data storage memory 24 under the control of the control unit 23. At this time, if the program guide data is KBPS-related data as shown in FIG. 1, the 'n' (e.g., 16th) horizontal line containing KBPS-related data among the video signals is recorded program guide data extraction unit 32. ), Only the recording target guide data is separated. In other words, the recording program guide data extracting unit 32 extracts only the recording target program guide data portion excluding the CRI portion and the synchronization portion and the non-recording data portion of the 503 Hz included in the one horizontal line. The control unit 23 stores the guide data storage memory 24. The guide data storage memory 24 functions to store and update the program guide data extracted by the recorded program guide data extraction unit 32 under the control of the control unit 23 and to output the selected data.

The controller 23 reads out the guide data from the data stored in the guide data storage memory 24 according to a user's request or a control signal of the system, and transmits the guide data to the video signal / guide data recording unit 25. The video signal / guide data recording unit 25 records the corresponding guide data in a predetermined area on the optical disc, that is, in a table of contents (TOC) area. When recording as such a TOC area, only program guide information desired by the user (for example, the name and time of the recording target program) is selectively recorded or directly input by the user through the key input means 31.

Subsequently, the display processing unit (not shown) converts the guide data into a displayable signal by OSD processing, and then combines the guide data with the original image signal from the image signal processing unit 21 to form a display signal. Accordingly, the user can check the guide information of the currently displayed program through the screen.

Here, if the program guide data is KBPS-related data, each broadcasting program containing KBPS-related data is assigned a unique On-Air, so that the allocated On-Air ID is recorded together with the broadcasting program at the time of recording. . Therefore, during playback, the recorded program guide data extracting unit 32 and control unit 23 extract the KBPS related data in the reproduced video signal, store it in the guide data storage memory 24, and check the on-air ID. When data matching the air ID is read from the guide data storage memory 24 and displayed, only the program guide data to be reproduced can be viewed.

FIG. 6 is a flowchart for facilitating an understanding of a recording program guide information recording process according to another embodiment of the present invention shown in FIG. Referring to FIG. 6, first, only the program guide data selected by the user among the broadcast guide information carried on the broadcast video signal during recording by the optical disc recording / reproducing apparatus such as a VDR, that is, in the recording mode, is recorded program guide data extracting unit 32. The extracted data is stored in the guide data storage memory 24 under the control of the controller 23. Subsequently, it is checked whether or not recording is completed, and if recording is completed, the control unit 23 reads out the corresponding data from the stored guide data and causes the video signal / guide data recording unit 25 to record in the TOC area of the optical disc. .

7 shows another example of the recording process of the broadcast guide information of FIG. In other words, FIG. 7 adds an editing step of guide data in the flowchart of FIG. Referring to FIG. 7, firstly, the guide data extraction section 22 extracts broadcast guide information carried on a broadcast video signal during recording by an optical disc recording / reproducing apparatus such as a VDR, that is, in a recording mode. At this time, if there is a request for editing the guide information, the guide data is edited. Then, the guide data stored under the control of the controller 23 is stored in the guide data storage memory 24. If there is no editing request, the guide data is left as it is. The guide data storage memory 24 is stored under the control of the controller 23. Subsequently, it is checked whether or not recording is completed, and if recording is completed, the control unit 23 reads out the corresponding data from the stored guide data and causes the video signal / guide data recording unit 15 to record it in the TOC area of the optical disc. .

According to the broadcast guide signal recording apparatus of the present invention as described above, the guide information carried on the broadcast video signal is recorded on a predetermined area of the optical disc, and further, only the program guide information desired by the user is extracted from the guide information and recorded or By directly inputting and recording the contents, it is possible to selectively display the program guide information recorded during playback, that is, the name of the broadcasting station, the program name, the recorded date and time, the running time of the program, the recording type, and the plot of the program. Since the contents of the program can be accurately recognized, there is no confusion about the recording information, and the recording information does not have to be manually recorded on the surface or the case of the recording medium. In addition, unlike the related art, it is not necessary to repeatedly record during recording of a program to be recorded, thereby preventing waste of the recording area.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. For example, even when guide information is included in data transmitted from a digital broadcasting station transmitting system, the present invention is included in the technical idea of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (8)

A disc recording / playback apparatus capable of random access, Means for extracting broadcast guidance information contained in an input broadcast video signal; Control means for controlling storage, reading and writing of the guide data extracted by the extracting means; Memory means for storing the guide data extracted by the extraction means under control of the control means; And a means for reading out guide data stored in the memory means and recording the guide data stored in the predetermined area on the disc under the control of the control means. The method of claim 1, And the broadcast guide signal recording data is related to Korean broadcast system. The method according to claim 1 or 2, And a predetermined area on the disc on which the broadcast guide data is to be recorded is a TOC area. A disc recording / playback apparatus capable of random access, Means for extracting only the recording target program guide data selected by the user from the broadcast guide information included in the input broadcast video signal; Control means for controlling storage, reading and writing of the program guide data extracted by the extracting means; Memory means for storing the program guide data extracted by the extracting means under control of the control means; And a means for reading out said program guide data stored in said memory means and recording it in a predetermined area on a disc under the control of said control means. The method of claim 4, wherein And a key input unit connected to the controller so that the user inputs the guide data directly so that the guide data of the recording target program selected by the user can be recorded as desired by the user. Signal recorder. The method according to claim 4 or 5, And said extracting means further comprises means for editing said program guide data prior to storing it in said memory means. The method of claim 4, wherein And the broadcast guide signal recording data is related to Korean broadcast system. The method according to claim 4 or 5, And a predetermined area on the disc on which the broadcast guide data is to be recorded is a TOC area.