KR100222323B1 - Recording speed switchover method according to recording tape residual - Google Patents

Abstract

The present invention provides a broadcast recording apparatus for receiving and storing a television broadcast program transmitted from a broadcasting station which transmits wirelessly with a television broadcast program by encoding various peripheral information (KBPS) other than the television broadcast program at predetermined time intervals and storing the same on a magnetizable recording medium. In particular, the present invention relates to a method of operating in the first step of detecting the KBPS information corresponding to the broadcast program set by the user desired recording, and the broadcasting time of the broadcast program in the KBPS information detected through the first process A second process of calculating, a third process of changing and calculating a recordable residual amount of the currently set recording medium into a recordable time, and a fourth process of comparing the times calculated in the second process and the third process, respectively; And the time calculated in the second process in the fourth process is the third unit. If greater than the judgment time been calculated in the invention relates to a recording speed switching method according to the recorded tape, the remaining amount comprising a fifth step of proceeding to the triple speed recording mode.

Description

How to switch the recording speed according to the remaining recording tape

The present invention relates to a recording apparatus (eg, a VCR) capable of recording a television broadcast program. In particular, the broadcasting time of a corresponding program is detected through a Korea Broadcast Program System (hereinafter referred to as KBPS) code. Recording according to the remaining amount of recording tape to detect the remaining amount of video tape that is settled in the current technology, and to change the recording speed to 3x speed mode when the tape is insufficient, so that the user can record the program on the selected tape as much as possible. It relates to a speed switching method.

In general, a VCR is a device for recording a video signal and an audio signal on a magnetizable video tape, and reproducing the video signal and a voice signal if necessary to view the video signal through a display means such as a CRT or a TV. As shown in FIG.

Referring to the configuration shown in FIG. 1, the process of recording / reproducing the received color video signal will be briefly described as follows.

First, in the case of recording, the color image signal input through the low pass filter LPF and the high pass filter HPF is separated into a luminance signal and a carrier color signal, and the separated luminance signal is FM-modulated and amplified. In addition, the separated carrier color signal has a frequency characteristic of 3.58 MHz, which is converted to a low frequency band of 767 kHz (exactly 767.0473 kHz) and amplified to a predetermined size. Thereafter, the luminance signal modulated by the FM in the mixing circuit is superimposed on a low level signal state and recorded on the tape through the video head.

On the other hand, during playback, the information recorded on the tape is accessed through the video head, and the weak signal is amplified to a predetermined size through the amplifier. The amplified signal is separated into an FM modulated luminance signal and a carrier color signal converted into a low frequency band through a low pass filter (LPF) and a high pass filter (HPF). Thereafter, the FM modulated luminance signal is restored to the original luminance signal through the FM demodulation circuit, and the carrier color signal converted to the low frequency band is inversely converted from the low frequency band of 767 kHz to the original frequency band of 3.58 MHz. At the same time, time-base fluctuations (i.e., jitter components) of the signal generated during reproduction are eliminated. Thereafter, the luminance signal and the carrier color signal are mixed through the mixing circuit to be restored to the original video signal.

Since the reproducing process of the above-described process is the reverse process of the recording process, referring to FIG. 2 attached to the conversion process of the signal according to the recording process, as follows.

FIG. 2 illustrates a video signal change process of recording a video signal in the accompanying FIG. 1 in the case of an NTSC video signal.

The overall configuration of the conventional image recording / reproducing apparatus to which the recording / reproducing technique of the video signal is applied is as shown in FIG.

The conventional image recording / reproducing apparatus (hereinafter referred to as VCR) shown in FIG. 3 includes a micom 600 for controlling the overall operation of the VCR by manipulation of the keypad 900C or the remote controller 900B, and the micom 600. Memory 500 for storing data to be processed in the tuner, a tuner 100 for receiving a broadcast signal of a channel selected by the preset voltage output from the microcomputer 600 from the antenna ANT, and the tuner ( The IF detector 200 detects the intermediate frequency from the broadcast signal received at 100, and the video tape (cassette) mounted on the video technology is operated according to the operation control signal output from the microcomputer 600. A recording unit 300 for recording a signal output from the IF detector 200 through H) and an operation according to an operation control signal output from the microcomputer 600 (generally recoil with respect to the recording unit 300). And are seated on the video A playback unit 400 for accessing and outputting a signal recorded on a video tape (cassette) through the head H, and receiving character information output from the microcomputer 600 and outputting the image information. The OSD generator 700 for outputting a text image, the signal output from the playback unit 400, and the signal processor 800 for processing the signal output from the OSD generator 700 and transmitted to the TV or CRT side. It is largely composed of).

At this time, the detailed configuration of the recording unit 300 and the reproduction unit 400 is as shown in the accompanying Figure 1, the overall operation is a general description thereof will be omitted.

Referring to the process of recording a television broadcast in the conventional VCR configured as described above are as follows.

When the user wants to record a specific television broadcast program, the user should be aware of the channel that can receive the broadcast program that he / she wishes to record, and the start time and end time of the program.

Thereafter, the user stores the stored information in the memory 500 through the manipulation of the keypad 900C or the remote controller 900A, and the microcomputer 600 starts the corresponding program based on the information stored in the memory 500. It is determined whether the time has passed through timer counting, and when the start time of the corresponding program is reached, the tuner 100 and the recording unit 300 are operated so that the broadcast received through the antenna is placed on the video tape (cassette). Will be recorded.

In addition, when it is determined that the end time of the program is reached by counting the end time, the microcomputer 600 stops the operation of the tuner 100 and the recording unit 300.

However, at this time, even if the remaining amount of video tape seated on the video tech is insufficient, the microcomputer 600 does not correctly recognize the recording, but normally records, but stops when the remaining amount of tape is insufficient even when the recording is not completed. Done.

Thus, a problem arises in that the user cannot watch the complete broadcast that he / she desires. In particular, even if the user detects the approximate amount of remaining video tape, the user may not be able to accurately recognize the problem, thereby increasing the inconvenience of the user.

An object of the present invention for solving the above problems is to detect the broadcast time of the program through the KBPS code, and to record the remaining amount of video tape that is currently seated in the tech can be recorded to warn the user of the lack of tape It is to provide a method of warning the remaining tape according to whether or not.

1 is a diagram illustrating a partial configuration of a general VCR for explaining a process of recording and reproducing a video signal.

FIG. 2 is an exemplary diagram for explaining a video signal recording method when a video signal is stored on a video tape using the configuration of FIG.

Figure 3 is a schematic overall block diagram of a conventional VCR

4 is a schematic overall block diagram of a VCR according to the present invention;

5 is a flowchart illustrating a procedure of switching a recording speed according to the present invention.

* Explanation of symbols for main parts of the drawings

ANT: Antenna 900C: Keypad

900B: Remote Controller 600: Micom

500: memory 100: tuner

200: IF detector H: head

300: recording unit 400: playback unit

700: OSD generator 800: signal processor

1000: KBPS Module

A feature of the present invention for achieving the above object is that by encoding various peripheral information (KBPS) other than a television broadcast program at predetermined time intervals, it is possible to receive and magnetize a television broadcast program transmitted from a broadcasting station that transmits wirelessly with the television broadcast program. A method of operating in a broadcast recording device for storing on a recording medium, the method comprising: a first process of detecting KBPS information corresponding to a broadcast program set by a user in hope of recording, and the KBPS information detected through the first process; A second process of calculating a broadcast time of the broadcast program; a third process of changing and recording a recordable remaining amount of the currently set recording medium into a recordable time; A fourth process for comparing time, and the second process in the fourth process When the binary time is determined to be larger than the time been calculated in the third step is to include a fifth step of proceeding to the triple speed recording mode.

As an additional feature of the present invention for achieving the above object, a sixth process of calculating a recordable time according to a triple speed recording mode after the fifth process and comparing it with the time calculated in the second process, and the sixth process The method further includes a seventh process of warning the user if it is determined that the time calculated in the second process is greater than the time calculated in the sixth process.

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

First, the Korea Broadcast Program System (KBPS) code will be briefly described. A broadcast code for broadcasting a television broadcast, a program code scheduled to be broadcast, and various kinds of information other than a broadcast program and a predetermined time interval together with a video signal are separated by a predetermined time interval. It will send a different KBPS code that is different from the previous KBPS code for the details changed by the circumstances of the broadcaster.

4 is a schematic overall block diagram of a VCR according to the present invention. In the micom 600 and the micom 600 which control the overall operation of the VCR by manipulation of the keypad 900C or the remote controller 900A. A memory 500 for storing data to be processed, a tuner 100 for receiving a broadcast signal of a channel selected by a preset voltage output from the microcomputer 600 from an antenna ANT, and the tuner 100. The IF detector 200 detects the intermediate frequency from the broadcast signal received at the head, and the head H is connected to the video tape (cassette) mounted on the video technology, operating according to the operation control signal output from the microcomputer 600. The recording unit 300 for recording the signal output from the IF detector 200 and the operation according to the operation control signal output from the microcomputer 600 (usually recoil with respect to the recording unit 300) and the Settled in video tech A playback unit 400 for accessing and outputting a signal recorded on a video tape (cassette) through the head H, and receiving character information output from the microcomputer 600 and outputting the image information. The OSD generator 700 for outputting a text image, the signal output from the playback unit 400, and the signal processor 800 for processing the signal output from the OSD generator 700 and transmitted to the TV or CRT side. ) And a KBPS module for receiving a video signal output from the IF detector 200 according to a decoding control signal output from the microcomputer 600, detecting a KBPS code, decoding the KBPS code, and transmitting the decoded signal to the microcomputer 600. 1000).

At this time, the detailed configuration of the recording unit 300 and the reproduction unit 400 is as shown in the accompanying Figure 1, the overall operation is a general description thereof will be omitted.

Referring to Figure 5 attached to the preferred operation example according to the reservation recording process of the VCR according to the present invention configured as described above are as follows.

In step S101, the microcomputer 600 recognizes the broadcast program set by the user in hope of recording. Subsequently, in step S102, the KBPS module 1000 is controlled to decode KBPS code included in the channel on which the broadcast program set by the user is broadcast, and then detect KBPS information corresponding to the broadcast program to be recorded, and then Proceed to S103.

In step S103, the start time and the end time of the broadcast program are detected from the KBPS information detected in step S102, thereby detecting the actual broadcast time through an arithmetic process as shown in Equation 1 below.

[Equation 1]

If the actual broadcast time of the broadcast program is detected through the process of step S103, in step S104 a VISS (Video Index Search System) code is inserted (set) into the video tape that is currently seated on the video technology, and the first time of the tape is recorded. Make the point of view recognizable.

Thereafter, in step S105, a fast forward is performed on the video tape settled on the video tech, and in step S106 it is checked whether there is a remaining amount of video tape, that is, the tape is completely wound up.

If it is determined in step S106 that there is no remaining video tape, the flow advances to step S107 to rewind until the VISS code inserted in step S104 is detected. When returning to the first time point at which recording is possible through the step S107, the remaining amount of tape is calculated in step S108. That is, the recordable time is calculated according to the remaining amount of the currently recordable paint.

At this time, the relational expression for calculating the recordable time through the remaining tape in step S108 is as shown in Equation 2 below.

[Equation 2]

As described above, the recordable time calculated in step S108 and the broadcast time calculated in step S103 are compared in step S109. At this time, if it is determined in step S109 that the broadcast time is greater than the recordable time, the flow advances to step S110 to calculate the recordable time, that is, three times the recordable time calculated in the step S108 in the 3x speed recording mode. .

Thereafter, in step S111, the recordable time calculated in step S110 is compared with the broadcast time calculated in step S103. If it is determined in step S111 that the broadcast time is larger than the recordable time, the process proceeds to step S112. It warns you that there is not enough space left on the current tape.

On the other hand, if it is determined in step S109 that the broadcast time is smaller than the normal recordable time or in step S111, the broadcast time is determined to be smaller than the 3x speed recordable time, the flow advances to step S113 to proceed to the recording standby mode.

Providing a method for switching the recording speed according to the remaining amount of the recording tape according to the present invention operating as described above has the effect that the broadcast that the user wants to record can be prevented from insufficient recording due to the lack of the remaining tape. .

Claims (2)

Operating in a broadcast recording apparatus for receiving and storing a television broadcast program transmitted by a broadcasting station that transmits wirelessly with a television broadcast program by encoding various peripheral information (KBPS) other than the television broadcast program on a magnetizable recording medium In the method, A first step of detecting KBPS information corresponding to a broadcast program set by a user in hope of recording; A second step of calculating a broadcast time of a corresponding broadcast program from the KBPS information detected through the first step; A third step of changing and calculating the amount of recordable residual amount in the currently set recording medium into a recordable time; A fourth process of comparing the times calculated in the second process and the third process, respectively; And And a fifth process of proceeding to a triple speed recording mode when it is determined that the time calculated in the second process is greater than the time calculated in the third process in the fourth process. How to switch. The method of claim 1, further comprising: a sixth process of calculating a recordable time according to a triple speed recording mode after the fifth process and comparing it with the time calculated in the second process; And a seventh process of alerting a user if it is determined that the time calculated in the second process is greater than the time calculated in the sixth process in the sixth process. .

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