KR20060105988A - Method for recording data of video recorder system - Google Patents

Abstract

The present invention records data in an image recording system. To this end, the present invention is different from the conventional method of recording only an index number at a recording start point when recording data in an image recording system that records and reproduces data on a magnetic tape. Alternatively, when recording data in a video recording system that records and reproduces data using magnetic tape, the predetermined area of the magnetic tape is skipped, the data is recorded in the recording area of the magnetic tape, and the index information is stored in the memory. After the recording of the data is finished, the data is recorded when the data is recorded in the video recording system by moving to the recording start point of the data to record the index information with the VBI signal and moving to the preset area to re-record the index information. The number of pre-recorded indexes by recording After searching the beam, you can select the data you want and play it effectively.

Description

Data recording method of video recording system {METHOD FOR RECORDING DATA OF VIDEO RECORDER SYSTEM}

1 is a block diagram of a video recording system suitable for recording index information of data recorded in a predetermined area according to the present invention;

2 is a flowchart illustrating a process of recording index information of data recorded in a video recording system in a preset area according to the present invention;

3 is a diagram illustrating a preset area and a data recording area in which index information of a magnetic tape is recorded according to the present invention;

4 is a diagram illustrating a menu screen displaying index information recorded in a predetermined area of a magnetic tape according to the present invention;

5 is a diagram illustrating index information recorded at a data recording start point of a magnetic tape according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

102: key input block 104: control block

106: tuning and demodulation block 108: decoding block

110: memory 112: VCR deck block

114: OSD generation block 116: signal processing block

The present invention relates to a method of recording data in a video recording system, and more particularly, to a data recording method of a video recording system suitable for recording image index information in a predetermined area when recording video data in a video recording system. It is about.

As is well known, a video recording system is a device for recording received video data and audio data by using a magnetic tape, for example, a video cassette recorder (VCR), a digital video cassette recorder (DVCR), and the like.

Such a video recording system such as a VCR or DVCR provides an index search function. The index search function provides an index number of data desired by a user through an index number detected when a plurality of video data and audio data are recorded on a magnetic tape. When the input is selected, the magnetic tape moves to the starting point where the corresponding data corresponding to the selected input index number is recorded and played.

In general, a video recording system searches for desired video data and audio data in response to an index number corresponding to a start point of each data among a plurality of data recorded on a magnetic tape.

In addition, as a method of searching for data desired by a user among the searched data, a VASS (Video Index Search System) using an index signal and a VASS (Video) searching using an address signal indicating an address of a magnetic tape added to the index signal are used. Address Search System) is used.

On the other hand, in the video recording system having such an index search function, to search for and play desired data among a plurality of recorded data, it moves to each recording start point to which an index number is added and selects data to be played back according to the index number. And, by reproducing, there was an inconvenience in retrieving and reproducing the desired data using the video recording system.

Accordingly, the present invention is to solve the above-described problems of the prior art, the corresponding information is recorded in the video recording system to the recording start point of the data to be recorded as a VBI signal, the corresponding index information in the predetermined area of the magnetic tape It is an object of the present invention to provide a data recording method of the video recording system that can record and retrieve the desired data through the recording.

In order to achieve the above object, the present invention provides a method for recording data in a video recording system for recording and reproducing data by using a magnetic tape, the method comprising: a first region for skipping a predetermined area of the magnetic tape when recording the data; And a second process of recording the data in the recording area of the magnetic tape and simultaneously storing the index information in a memory; and when the recording of the data is finished, moving to the recording start point of the data to index the VBI signal. And a fourth process of recording information, and a fourth process of moving to the preset area and rewriting the index information.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A key technical aspect of the present invention is to record and reproduce data using a magnetic tape, unlike a conventional method of recording only index numbers at a recording start point when recording data in a video recording system for recording and reproducing data on a magnetic tape. When recording data in the video recording system, the predetermined area of the magnetic tape is skipped, the data is recorded in the recording area of the magnetic tape, and the index information is stored in the memory. By moving the recording start point to record the index information with the VBI signal and moving to the preset area to rewrite the index information, the object of the present invention can be easily achieved through such technical means.

FIG. 1 is a block diagram of a video recording system suitable for recording index information of recorded data in a predetermined area according to the present invention, and includes a key input block 102, a control block 104, a tuning and demodulation block 106. , Decoding block 108, memory 110, VCR deck block 112, OSD generation block 114, and signal processing block 116.

Referring to FIG. 1, the key input block 102 responds to an operation signal in response to a user inputting a key for controlling an operation of a video recording system using an input unit (not shown), for example, a remote controller. For example, a recording operation signal, a reproduction operation signal, etc.) are generated. For example, when a video recording system inputs a key for recording data by using a magnetic tape, a recording operation signal is generated accordingly and a control block is generated. Pass to 104, and the like.

In addition, the control block 104 performs overall operation control of the video recording system, and the control signal for tuning the broadcast channel according to the operation signal transmitted from the key input block 102 to the tuning and demodulation block 106. And a control signal for decoding the video and audio data of the tuned broadcast channel to the decoding block 108, and processing the video and audio data to signal processing the control signal for playback through the monitor and the speaker. Provided to block 116.

In addition, the control block 104 provides a control signal for decoding and transferring the transferred data to the magnetic tape to the decoding block 108, and simultaneously extracts index information of the transferred data and stores it in the memory 110. The control signal is provided to the decoding block 108. Here, the index information means, for example, an index number, a reproduction time, a data title, a recording date and time, a data capacity, a keyword, a recording description, and the like.

In addition, the control block 104 provides a control signal for skipping a predetermined area of the magnetic tape to the VCR deck block 112 and a control signal for recording data in the next area to the VCR deck block 112. When the recording of the data is finished, the VCR deck block 112 moves a control signal for moving to the recording start point of the magnetic tape, extracting index information of the corresponding data from the memory 110, and recording the index information as a VBI signal on the magnetic tape. To provide.

In addition, the control block 104 records the corresponding index information as a VBI signal at a recording start point, moves to a predetermined area, and includes a control signal for rewriting the corresponding index information in the previously recorded index information by using the VCR deck block ( 112).

Here, before the corresponding data is recorded as the VBI signal or included in the existing index information in the preset area and rewritten, the control block 104 generates a control signal that generates a menu screen for editing the index information. Provided to the block 114, it is controlled to display the image processing (mixing the image data and the menu screen) through the signal processing block 116 and the monitor not shown.

Next, the tuning and demodulation block 106 tunes any one of a plurality of broadcast channels received via an antenna in response to a control signal from the control block 104, whereby the tuned data ( The broadcast signal is restored to a transmission scrim through a process of converting to an intermediate frequency, demodulation, and error correction.

The decoding block 108 restores the compressed coded data (broadcast signal) of a specific channel to the original signal before decoding by using a decoding technique such as variable length decoding, inverse DCT, inverse quantization, motion compensation, and the like. 116).

In addition, the decoding block 108 extracts the index information of the decoded data according to the control signal provided from the control block 104 and transfers the index information to the memory 110 to store it. The data is recorded on the magnetic tape. The data is provided to the VCR deck block 112 for recording, and when data is reproduced, the data transmitted from the VCR deck block 112 is decoded and transmitted to the signal processing block 116.

Subsequently, the memory 110 is, for example, an EEPROM or the like, and temporarily stores index information transmitted from the decoding block 108, extracts the index information according to a control signal provided from the control block 104, and controls the control block. Forward to 104.

The VCR deck block 112 performs a function of a general VCR that records and reproduces video data and audio data using a magnetic tape. The VCR deck block 112 records decoded data (broadcast signal) on a magnetic tape, and then records on a magnetic tape. This is passed to the decoding block 108 to reproduce the data.

In the VCR deck block 112, the predetermined area of the magnetic tape is skipped at the time of data recording in accordance with the control signal provided from the control block 104, the data is recorded in the next area, and the provided index information is recorded. After recording as a VBI signal at the start point, the display moves to a preset area and records index information according to the user's editing.

On the other hand, the OSD generation block 114 displays the index information of the recorded data according to the control signal provided from the control block 104, and generates a menu screen for editing through this to pass to the signal processing block 116 In the signal processing block 116, this is mixed with the image data and displayed on a monitor (not shown).

Next, when recording data in the video recording system having the above-described configuration, after skipping a predetermined area of the magnetic tape, data is recorded in the next area, and index information extracted at the recording start point at the end of recording. This method describes the process of recording the data as a VBI signal, moving to a preset area, and including and editing the corresponding data in the existing index information.

FIG. 2 is a flowchart illustrating a process of recording index information of recorded data in a preset area in an image recording system according to an exemplary embodiment.

Referring to FIG. 2, in the playback mode of the video recording system (step 202), in the control block 104, a user inputs a recording key for data recording using an input unit (not shown), for example, a remote controller. In response to this, it is checked whether there is a recording operation signal generated from the key input block 102 (step 204).

As a result of the check in the step 204, if there is a recording operation signal, the control block 104 provides a control signal to the VCR deck block 112 to skip the predetermined area of the magnetic tape (step 206). Here, the predetermined area means an area for recording the entire index information recorded on the magnetic tape, which is usually a predetermined area from the start point recordable on the magnetic tape or a predetermined area from the last point recordable on the magnetic tape. For example, as shown in FIG. 3, a predetermined area may be set as the A area.

In addition, the control block 104 provides the control signal to the decoding block 108 to extract index information of the corresponding data for recording on the magnetic tape, and transfers the index information to the memory 110 to store the index information (step). 208). Here, the index information means, for example, an index number, a reproduction time, a data title, a recording date and time, a data capacity, a keyword, a recording description, and the like, and as an example, FIG. 5 is a magnetic field according to an embodiment of the present invention. FIG. 1 is a diagram illustrating index information recorded at a data recording start point of a tape.

In addition, the VCR deck block 112 records data transmitted to the next recordable area (the area after skipping the preset area) according to the control signal provided from the control block 104 (step 210). Here, the next recordable region means, as an example, the region of Data1 as shown in FIG. 3.

Next, the control block 104 checks whether the recording of the data to be recorded is finished (step 212). As a result of the check in step 212, when data recording ends, the control block 104 provides a control signal to the VCR deck block 112 to move to the point where data recording of the magnetic tape has started (step 214).

Then, the control block 104 extracts the corresponding index information stored in the memory 110 and provides it to the VCR deck block 112 to record it as a VBI signal at the recording start point of the magnetic tape (step 216). Here, the corresponding index information recorded by the VBI signal means index information as shown in FIG. 5, and is recorded at the recording start point (a1 area) as shown in FIG.

In addition, the control block 104 provides a control signal to the VCR deck block 112 to move to the predetermined area A of the magnetic tape (step 218).

In addition, the control block 104 provides a control signal to the OSD generation block 114 to display a corresponding index information, generate a menu screen for editing, and provide the menu screen to the signal processing block 116. In operation 116, the image data is mixed with the image data and displayed on a monitor (not shown) (step 220).

As a result, when the user inputs a key for editing the index information into desired contents by using an input unit (not shown), for example, a remote controller, the index edited in the control block 104 according to an operation signal generated in response thereto. Information is provided to the VCR deck block 112, and the VCR deck block 112 records the information together with the existing index information in a predetermined area of the magnetic tape (step 222).

Here, the index information recorded in the preset area means index information of each of all data recorded on the magnetic tape as shown in FIG.

Subsequently, the control block 104 checks whether other data (i.e., new data) is recorded (step 224), and repeats the processes of steps 208 to 222 when recording other data.

Here, as shown in FIG. 3, all index information is recorded in the preset area A, the index information of Data1 is recorded as a VBI signal in the a1 area, and the index information of Data2 is recorded as a VBI signal in the a2 area. do.

Therefore, when data recording is performed in the video recording system, index information about the data is temporarily stored in the memory, the data is recorded in the next area after skipping the predetermined area of the magnetic tape, and the data is recorded at the end of data recording. After moving to the start point of recording, the corresponding index information may be recorded as a VBI signal, and then moved to a preset area to include the corresponding index information in the existing index information for recording.

Meanwhile, in the above-described present invention, the index information is described as being recorded in a predetermined region and a recording start point. After that, the index information recorded in the predetermined region is displayed on the menu screen through this, and the desired data is retrieved through the menu screen. Of course, you can play it.

As described above, the present invention, unlike the conventional method of recording only the index number at the recording start point when recording data in the video recording system, when recording data in the video recording system, the predetermined area of the magnetic tape Skip and record the data in the recording area of the magnetic tape and at the same time save the index information in the memory.When the recording of the data is finished, move to the recording start point of the data and record the index information with the VBI signal. By re-recording the index information, the user can record the information in the preset area when recording the data in the video recording system, search for a plurality of pre-recorded index information, and then select the desired data to play effectively. Usability can be greatly improved.

Claims (4)

A method of recording data in an image recording system that records and reproduces data using magnetic tape, A first process of skipping a predetermined area of the magnetic tape when recording the data; A second process of recording the data in a recording area of the magnetic tape and storing index information in a memory; A third process of moving to a recording start point of the data and recording the index information with a VBI signal when the recording of the data ends; A fourth process of moving to the preset area and rewriting the index information Data recording method of the video recording system comprising a. The method of claim 1, The method further includes repeating the second to fourth processes every time new data is recorded on the magnetic tape. The method of claim 1, And the predetermined area is allocated to a predetermined area of a start or end area of the magnetic tape. The method according to any one of claims 1 to 3, The index information includes an index number, a reproduction time, a data title, a recording date and time, a data capacity, a keyword, and a description of the recording.

Images