KR19990040712A - How to control reservation recording of VSI system - Google Patents

Abstract

The present invention relates to a reservation recording control method of a VSI system, which provides flexibility in the user's program reservation recording selection by enabling the user to execute the reservation recording mode priority remaining time aging mode by using the remaining program time of the broadcasting system. It would be.

According to the present invention, the system determines whether the scheduled recording start time is m minutes in the reserved recording mode, and checks whether there is a remaining recording mode setting (steps 101 to 103) in the case of m minutes, and if there is no remaining recording mode setting thereafter, Checking whether or not a broadcast signal is being received if a scheduled recording is performed, and if there is a broadcast signal, checking whether there is remaining time data in the broadcast signal or not (steps 103 to 106), and if there is remaining time data, remaining time The present invention provides a method for controlling reservation recording of a VSI system including executing a recording mode and stopping a recording operation (steps 107 to 109).

According to this, there is an effect of receiving the remaining program time contained in the broadcast signal in the VSI reservation recording mode and automatically performing the scheduled recording until the remaining time of the predetermined program whenever necessary.

Description

How to control reservation recording of VSI system

The present invention relates to a reservation recording control method of a VSI system. In particular, in the reservation recording mode of a BSI, it is possible to perform a reservation recording until the end of a program by using program remaining time data of a video signal received from a broadcasting system. By doing so, this system can be easily implemented.

G-Code is known to implement simple reservation recording using broadcast signal in VSI system. This is a simple reservation recording system developed by GEMSTAR of USA, which makes reservation recording convenient. In order to do this, a specific number is assigned to a specific pro so that the user can enter the number of scheduled recordings.

Such a code can be reserved by inputting a code that codes up to 8 digits of 4 data of channel, date, start time, and broadcasting length (C, D, T, L). After entering the code, select 'Weekly / Once / Monday-Friday' and leave the remote control next to VSIal. When the scheduled time comes, IR will transmit the infrared and the VSI will start recording. It is compatible with each company's VSI, and there are VSI and TV with this function.

The PLUS CODE system was invented to summarize these four elements into separate numbers called plus codes, which are based on the geographic region, VCR PLUS and SHOW VIEW, respectively. ), Called KPS.

On the other hand, as shown in Fig. 2, such a CODE is to carry and broadcast a code signal divided into a clock and byte synchronization unit, a data head unit, and a data unit in a vertical synchronization section of a video signal.

In addition, there are four elements required to record a specific TV broadcast: date, channel, start time, and broadcast length. If you set the date as 31 days, 125 channel types, and the start time interval in 5 minutes a day, 288 (60/5 = 12, 12 * 24 = 288), and the length of the broadcast is 3 hours up to 5 minutes. There are 56 different intervals (5 minutes up to 3 hours, 15 minutes up to 3-8 hours). Thus, the total number of recordable cases is 31 × 125 × 288 × 56 = 62,496,000.

In addition, the VSI system related to the KB PS code method of the above type is shown as shown in FIG.

Here, the microcomputer 31 for controlling the VSI system, the servo circuit 32 for driving control of the motor on the system deck side, the remote control unit 33a and the set side wirelessly connected to the remote control transmitter 33c The timer circuit 33 to which the key part 33b is connected, the audio circuit 35 which processes a voice signal in a system, etc. are provided.

In addition, the system includes a video circuit 37 for providing a recording signal to the tape side or processing a reproduction video signal from an RF signal provided from the tuner and the IF unit 38, and an audio signal during double speed reproduction on the system deck side. DMS (36) to control to provide a steady state, the KPS (34) to decode the KPS data, the tuner to tune the signal received from the antenna and generate a signal of intermediate frequency And an I F unit 38, a power circuit 39 for supplying a system power supply, and the like.

In addition, the conventional system of the reservation recording method using KBP data in such a system is introduced in Korean Patent Laid-Open Publication No. 1305 (Publication No. 94-16194).

In this case, when the user sees the program identifier displayed on the newspaper and inputs the reserved recording data, the system checks whether the reserved recording is set as shown in FIG. 3 and checks whether the scheduled recording is being executed if the reserved recording is set. After that, the identification code is extracted, and the reservation method is performed based on the start time, length, title, etc. of the program provided by the KBP signal data.

However, in such a conventional system, data such as the start time, length, and title of a program are transmitted to a broadcast signal, but the remaining time data of the program is not handled, which limits the various control operations of such a system.

SUMMARY OF THE INVENTION An object of the present invention is to use the remaining time reservation recording until the end of a predetermined program by using the remaining time data sent from the broadcasting system in the reserved recording mode of VSI to improve the above problems. To implement convenience.

In order to achieve the object of the above example, the present invention determines whether or not the remaining recording mode is set in the scheduled recording mode when the scheduled recording start time is m minutes, and if there is no remaining recording mode setting. Checks whether or not a broadcast signal is being received if normal reserved recording is being executed, and if there is a broadcast signal, checks whether there is remaining time data in the broadcast signal, or returns it. It is characteristic of the reservation recording control method of VSI system including the step of stopping the recording operation afterwards.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a system circuit block diagram of a VCR (Video Cassette Recorder) having a general KBPS reception function.

2 is a reference diagram showing a conventional broadcast station side KB PS transmission signal shape

3 is a reference diagram showing a conventional method of performing a recording operation from the program identification symbol of KB PS in FIG.

4 is a broadcast system circuit block diagram related to the present invention.

5 is a block diagram of the main part of a VSI system circuit of the present invention.

6 is an embodiment of a remaining amount reservation recording control program of the present invention.

** Explanation of symbols on main parts of the drawing **

41.Key Input 42.Microcomputer

43. Tuner and IF part 44. Video processing part

45. Deck

100. Reserved recording control program

The remaining time insertion circuit of the TV broadcast associated with the present invention is shown by reference as shown in FIG. 4.

Here, a video processor 11 generating and processing a video signal in a TV broadcasting system, and a microcomputer 12 receiving a composite synchronization signal CS provided from the video processor 11 and controlling time data in a vertical synchronization section. And a level adjuster 13 that receives the time data signal of the microcomputer 13 and adjusts it to an appropriate magnitude, and outputs the video signal VS and the level adjuster 13 of the video processor 11 to the microcomputer. And an output changeover switch 14 for selectively connecting to the rear end under the control of the computer 13.

The system circuit block of the present invention related to the remaining time data of a predetermined program transmitted from the remaining time insertion circuit of the TV broadcast is shown in FIG. 5.

In this case, the tuner and IF unit 43 for tuning and IF processing the broadcast signal received from the antenna and the video signal received from the tuner and IF unit 43 are processed as a recording signal or a reproduction system signal. From the video processor 44 and the output of the video processor 44, the vertical blanking interval of the composite synchronization signal is examined to detect remaining time data for the program, and if there is a remaining recording mode setting in the reserved recording mode, remaining time A microcomputer 42 in a control operation for automatically controlling the deck unit 45 to perform a recording operation, a key input unit 41 for inputting a command for setting the remaining recording mode to the microcomputer 42; The deck part 45 etc. of a recording drive operation | movement are included.

In addition, the system is provided with a remaining amount reservation recording program 100 as shown in FIG.

In this case, the system judges whether the scheduled recording start time is m minutes in the scheduled recording mode and checks whether there is a remaining recording mode setting (m 101 minutes), and if there is no remaining recording mode setting thereafter, normal reservation is made. Checking if a broadcast signal is being received if recording is being performed, and if there is a broadcast signal, checking if there is remaining time data in the broadcast signal or returning (steps 103 to 106).

If the remaining time recording data is not executed, the normal scheduled recording mode is executed, and the recording operation is stopped after executing the remaining time recording mode (steps 107 to 109).

According to an exemplary embodiment of the present invention, when the video input signal VI generated from the broadcasting camera signal is input to the video processor 11 of the remaining time insertion circuit, the video processor 11 processes and outputs the video input signal. It is sent to the changeover switch 14.

In addition, when the composite synchronization signal output from the video processor 11 is input to the microcomputer 12, the microcomputer 12 detects a vertical blanking section of the composite synchronization signal and counts the current time. Is adjusted to an appropriate level in the level adjusting section 13 and then provided to the output switching switch section 14.

When the total time for the predetermined program of the microcomputer 12 is 55 minutes, the output switching switch unit 14 performs time counting operation up / down from the total time to send the time data to the level adjusting unit 13. The output switching switch section 14 shows that the microcomputer 12 has a total time of 55 minutes / remaining time 55 seconds → total time 55 minutes / remaining time 54 seconds → total time 55 minutes / remaining time by 1 field in the vertical blanking interval. 53 seconds → Total time 55 minutes / Remaining time 52 seconds → Total time 55 minutes / Remaining time 51 seconds → Total time 55 minutes / Remaining time 50 seconds → ............ → Total time 55 minutes / Remaining time The data is loaded in 00 minutes.

On the other hand, in the VSI or the like in which the broadcast system signal is received, the tuner and the IF unit 43 tune and preprocess a predetermined broadcast signal as shown in FIG. 5, and provide a video signal to the video processor 44. In (44), the received signal is modulated into a recording system signal and then provided to the deck unit 45, or the remaining time data of the vertical synchronization section is provided to the microcomputer 42.

Therefore, if the user is setting the remaining recording mode at a specific time in the reserved recording mode using the screen interactive OSD through the key input unit 41, the microcomputer 42 recognizes this and is present before the start of the preset recording recording program. After the program remaining time data detected from the received broadcast program is extracted and stored in the recording timer, the deck unit 45 is driven to ignore the reservation recording mode of the current time and perform the reservation recording operation.

If the broadcast program received above has no remaining time data or the system is not set to the remaining recording mode, the normal scheduled recording operation is executed.

In addition, the remaining reserved recording operation as described above is performed by the microcomputer 42 together with the remaining reserved recording control program 100 as shown in FIG. 6, which determines whether the system is minutes before the scheduled recording start time in the reserved recording mode. If it is m minutes ago, it is checked whether there is remaining recording mode setting (steps 101 to 103).

Thereafter, if there is no remaining recording mode setting, it is checked if a broadcast signal is received if normal reserved recording is being executed, and if there is a broadcast signal, it is checked if the remaining time data is in the broadcast signal (steps 103 to 106).

If the remaining time data exists, the recording operation is stopped after the remaining time recording mode is executed (steps 107 to 109).

The present invention can perform automatic reservation recording using the remaining time of a predetermined program using the remaining time data when the remaining time data is loaded on the broadcast signal when the remaining time reservation recording mode is set by the user's need in the reserved recording mode of VSI. Therefore, the convenience of using such a system can be secured well.

Claims (1)

In the VSI system including the microcomputer, the system judges whether the scheduled recording start time is m minutes in the reserved recording mode, and checks whether there is a remaining recording mode setting (m steps 101 to 103), and then sets the remaining recording mode. If there is no normal reservation recording, if the broadcast signal is received, if the broadcast signal is received, if there is a broadcast signal, checking whether the remaining time data is in the broadcast signal or returning (steps 103 to 106), and remaining time as described above. If there is data, executing the remaining time recording mode and stopping the recording operation (steps 107 to 109).