KR940004930B1 - Device and method of maintaining a special program in video cassette recorder - Google Patents
Device and method of maintaining a special program in video cassette recorder Download PDFInfo
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- KR940004930B1 KR940004930B1 KR1019910008177A KR910008177A KR940004930B1 KR 940004930 B1 KR940004930 B1 KR 940004930B1 KR 1019910008177 A KR1019910008177 A KR 1019910008177A KR 910008177 A KR910008177 A KR 910008177A KR 940004930 B1 KR940004930 B1 KR 940004930B1
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
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Abstract
내용 없음.No content.
Description
제 1도는 일반적인 브이씨알의 레코딩 신호흐름도.1 is a recording signal flow of a typical V-Cal.
제 2도는 본 발명의 특정 프로그램 보존방법이 적용된 브이씨알의 부분 블록도.FIG. 2 is a partial block diagram of a VRC to which a specific program preservation method of the present invention is applied.
제 3a도 내지 제3b도는 제 2도 각부의 파형도.3A to 3B are waveform diagrams of respective parts of FIG.
제 4도는 본 발명의 신호흐름도.4 is a signal flow diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 마이콤 10A : 키이보드10: Micom 10A: Keyboard
20 : 서보집적소자 30 : 레코딩 금지신호발생부20: Servo integrated device 30: Recording prohibition signal generator
40 : 기록/재생부 50 : 카운터40: recording / playback section 50: counter
CH : 콘트롤 헤드: 증폭기CH: control head Amplifier
: 앤드게이트 Endgate
본 발명은 브이씨알의 예약녹화 제어기술에 관한 것으로, 특히 예약녹화시 기존에 기록된 프로그램중 그대로 보존하고자하는 특정 프로그램이 새로 녹화되는 프로그램에 의해 지워지는 것을 방지하도록 한 브이씨알의 특정 프로그램 보존방법 및 장치에 관한 것이다.The present invention relates to a reservation recording control technology of V-C. In particular, a specific program preservation method of V-Cal to prevent a specific program to be preserved from a previously recorded program as it is being erased by a newly recorded program during reservation recording. And to an apparatus.
일반적으로 브이씨알의 카세트 테이프는 레코딩 안전 탭(Recording Safety Tap)의 유무에 따라 레코딩이 가능한 테이프와 레코딩이 불가능한 테이프로 대별되는데, 제1도는 일반적인 브이씨알의 녹화신호흐름도로서 이를 참조하여 종래의 녹화기술을 설명하면 다음과 같다.In general, V-Cal's cassette tapes are generally classified into a tape capable of recording and a non-recordable tape according to the presence or absence of a recording safety tap. FIG. 1 is a general video signal flow diagram of V-C. The description is as follows.
먼저, 데크에 테이프 케이스가 안착되었는지를 체크함과 아울러 그 테이프 케이승에 레코딩 안전 탭이 부착되었는지를 체크하여 현재 레코딩이 가능한 상태인지를 판별하게 되는데, 상기의 체크결과 레코딩 조건이 만족되지 않으면 이젝트 기능을 수행하고, 레코딩 조건이 만족된 상태에서 사용자에 의해 레코딩 키이 스위치가 눌려지거나(QRS) 예약녹화시간이 시작되면 레코딩 동작이 수행되는데, 이때, 이전에 기록된 내용이 무엇이든지 새로운 내용이 기록되는 동안 그 내용은 소거헤드에 의해 지워지게 된다.First, it checks whether the tape case is seated on the deck and whether the recording safety tab is attached to the tape cable to determine whether the current recording is possible. When the recording key is pressed and the recording key is pressed by the user (QRS) or the scheduled recording time starts when the recording condition is satisfied, the recording operation is performed. The contents are erased by the erase head during the process.
이와 같이 종래의 녹화기술에 있어서는 레코딩 조건만 만족되는 그 조건이 해제되는 순간까지 기존에 기록된 내용이 모두 지워지게 되므로 하나의 카세트 테이프 구간 중 일부분에 계속 보존하고자 하는 프로그램이 녹화되어 있을 경우 그 카세트 테이프를 녹화용으로 사용할 수 없게되며, 이로 인하여 테이프의 이용율이 크게 떨어지는 결함이 있었다.As described above, in the conventional recording technology, all the previously recorded contents are erased until the condition that only the recording conditions are satisfied is released. Therefore, when a program to be kept in a part of one cassette tape section is recorded, the cassette is recorded. The tape could not be used for recording, which resulted in a defect that the utilization of the tape dropped significantly.
본 발명은 이와 같은 결함을 해결하기 위하여 보존하고자 하는 특정 프로그램은 녹화시에도 그대로 보존되게 하는 수단을 창안한 것으로 이를 첨부한 도면에 의하여 상세히 설명한다.In order to solve such a defect, the present invention has been made as a means for allowing a specific program to be preserved as it is, even when recording, and will be described in detail with reference to the accompanying drawings.
제2도는 본 발명의 특정 프로그램 보존방법이 적용된 브이씨알의 블록도로서 이에 도시한 바와 같이, 키이보드(10A)를 스캔하여 입력된 키이신호에 따라 시스템 전체를 제어하는 시스콘/타이머용 마이콤(10)과, 상기 마이콤(10)으로부터 입력되는 데이타에 따라 데크계를 제어하는 서보집적소자(20)와, 증폭기(), 쉬미트트리거(), 앤드게이트()로 구성되어 레코딩 금지신호를 생성하는 레코딩 금지신호발생부(30)와, 콘트롤헤드(CT) 및 스위치(,)로 구성되어 상기 레코딩 금지신호를 테이프에 기록하거나 테이프로부터 레코딩금지신호를 재생하는 기록/재생부(40)와, 상기 기록/재생부(40)를 통해 기록되거나 재생되는 레코딩 금지펄스수를 카운트하여 이를 상기 마이콤(10)에 전달하는 카운터(50)를 구성한 것으로 이와 같이 구성된 본 발명 제2도 각부의 파형도를 보인 제3도 및 본 발명의 신호흐름도인 제4도는 참조하여 상세히 설명하면 다음과 같다.2 is a block diagram of V-Cal to which a specific program preservation method of the present invention is applied. As shown in FIG. 2, a microcomputer for a scissor / timer that scans the keyboard 10A and controls the entire system according to the input key signal 10), the servo integrated device 20 for controlling the deck system in accordance with the data input from the microcomputer 10, and an amplifier ( ), Schmitt trigger ( ), Endgate ( A recording prohibition signal generator 30 configured to generate a recording prohibition signal, a control head CT and a switch ( , Recording / reproducing section 40 for recording the recording prohibition signal on the tape or reproducing the recording prohibition signal from the tape, and counting the number of recording prohibition pulses recorded or reproduced through the recording / reproducing section 40. By configuring the counter 50 for transmitting this to the microcomputer 10, FIG. 3 shows the waveform diagram of the second part of the present invention and the signal flow diagram of the present invention. Same as
먼저, 레코딩 금지구역을 설정하는 과정을 설명하면, 사용자가 테이프를 주행시켜 보존하고자 하는 프로그램의 위치에 거의 이르렀을때, 키이보드(10A)상에서 레코딩 금지시작키이를 선택하면 마이콤(10)이 그 키이를 스캔하여 카운터(50)가 소정갯수(5개)의 펄스를 카운트하도록 데이타 명령을 주는 동시에 스위치()를 고정단자(a)에 단락시키고, 스위치()를 개방시킨다.First, the process of setting the recording prohibition area, when the user has almost reached the position of the program to be stored by running the tape, when the recording prohibition key is selected on the keyboard 10A, the microcomputer 10 selects the key. Scan the key and give the data command to the counter 50 to count the predetermined number (five) pulses. ) Short to the fixed terminal (a) and switch ( Open).
이때, 제3a도와 같은 캡스턴신호(Capstan Frequency Generator:CFG)가 증폭기()를 통해 소정레벨로 증폭된 다음 다시 쉬미트트리거()를 통해 제3b도와 같은 구형파로 변환되고, 이는 앤드게이트()에서 제3c도와 같은 헤드스위칭신호(H/S)와 논리조합되어 그 앤드게이트()에 제3d도와 같은 펄스가 출력된다.At this time, the capstan signal (CFG) as shown in FIG. ), Then amplified to a certain level, and then ) Into a square wave, like 3b, ) And logical combination with the head switching signal (H / S) as shown in FIG. Is outputted as shown in FIG. 3D.
이에 따라 상기 앤드게이트()에 출력되는 펄스가 상기 스위치() 및 콘트롤헤드(CH)를 통해 테이프에 기록되기 시작하는데, 이때 상기 카운터(50)는 상기 앤드게이트()에 출력되는 펄스수를 카운트하여 5개가 되는 순간 상기 마이콤(10)에 카운트완료신호를 출력하므로 그 마이콤(10)이 상기 스위치()를 고정단자(b)에 단락시키는 동시에 스위치()를 단락시켜 결과적으로 사용자가 보존하고자 하는 프로그램의 시작부분에 제3d도에서와 같이 레코딩 금지구역의 시작신호가 기록된다.Accordingly, the end gate ( The pulse output to the switch ( And to the tape via the control head CH, where the counter 50 The count completion signal is output to the microcomputer 10 as soon as the number of pulses output to the microcomputer 10 is counted. ) Short to the fixed terminal (b) and at the same time As a result, the start signal of the recording prohibition zone is recorded as shown in FIG. 3d at the beginning of the program that the user wants to save.
이후, 테이프가 주행되어 보존하고자 하는 프로그램이 종료되는 구역에서 사용자가 상기 키이보드(10A)상에서 레코딩 금지종료키이를 선택하게 되는데, 이때 상기 마이콤(10)은 상기 카운터(50)에 소정갯수(10)의 펄스를 카운트하라는 데이xk 명령을 출력하는 동시에 상기 스위치()를 고정단자(a)에 단락시키고, 스위치()를 개방시킴에 따라 상기와 같은 과정을 통해 테이프에 레코딩 금지구역의 해제를 표시하는 10개의 펄스가 기록된다.Thereafter, the user selects a recording prohibition end key on the keyboard 10A in an area where the tape is run and the program to be preserved is terminated. At this time, the microcomputer 10 sets a predetermined number (10) in the counter 50. Outputs a dayk command to count the pulses of the ) Short to the fixed terminal (a) and switch ( In the same manner as above, 10 pulses indicating the release of the recording prohibition zone are recorded on the tape.
이와 같은 과정에 의해 보존하고자 하는 프로그램의 전.후에 레코딩 금지신호(RPM)가 기록된 상태에서 예약녹화 프로그램 키이입력이 완료되면, 상기 마이콤(10)은 현재시간과 예약녹화시간을 비교하다가 예약녹화시간 20분전이 되는 순간 파워스위치를 온시킴과 아울러 상기 서보집적소자(20)을 통해 데크계를 제어하여 현재모드를 리뷰모드(REV)로 설정하게 된다.When the reserved recording program key input is completed while the recording prohibition signal (RPM) is recorded before and after the program to be saved by the above process, the microcomputer 10 compares the current time with the reserved recording time, and then reserves the recording. As soon as 20 minutes before the time, the power switch is turned on and the deck system is controlled by the servo integrated device 20 to set the current mode to the review mode REV.
이때, 상기 스위치()는 마이콤(10)에 의해 고정단자(b)에 단락되고, 스위치()가 개방되어 있으므로 테이크가 역방향으로 고속주행되는데, 이때, 콘트롤헤드(CH)를 통해 레코딩금지구역시작신호(RPS)와 레코딩금지구역종료신호(RPE)로 이뤄진 레코딩 금지신호(RPM)가 검출되면, 이는 카운터(50)에 의해 카운팅되어 상기 마이콤(10)에 전달된다.At this time, the switch ( ) Is short-circuited to the fixed terminal (b) by the microcomputer 10, the switch ( ), The take is driven at a high speed in the reverse direction. When the recording prohibition signal (RPM) consisting of the recording prohibition zone start signal (RPS) and the recording prohibition zone end signal (RPE) is detected through the control head CH, , Which is counted by the counter 50 and delivered to the microcomputer 10.
이와 같이 테이프가 역방향으로 주행될때 상기 마이콤(10)은 테이크업 센서(Take Up Sensor: TS)가 저전위를 유지하는 동안 계속 되감기 모드를 유지하면서 레코딩 금지신호가 검출되면 그 레코딩 금지신호의 펄스수를 확인하여 그 펄스수가 10개이면 이는 레코딩금지구역종료신호(RPE)이므로 현재모드를 큐유(QUE)모드로 절환하고, 상기 펄스수가 5개이면 이는 레코딩금지구역시작신호(RPS)이므로 테이프의 주행거리를 카운트하는 메모리 카운터의 카운트값을 롬에 저장함과 아울러 현재모드를 큐유모드로 전환하여 상기 레코딩금지구역종료신호(RPE)가 검출되는 순간 상기 메모리 카운터의 카운트값을 상기 롬에 저장시킨다.In this way, when the tape is traveling in the reverse direction, the microcomputer 10 maintains the rewind mode while the take up sensor TS maintains the low potential, and the number of pulses of the recording prohibition signal is detected when the recording prohibition signal is detected. If the number of pulses is 10, this is the recording prohibition zone end signal (RPE), so switch the current mode to the QUE mode, and if the number of pulses is 5, this is the recording prohibition zone start signal (RPS). The count value of the memory counter for counting the distance is stored in the ROM, and the current mode is switched to the cue mode, and the count value of the memory counter is stored in the ROM at the moment when the recording prohibited zone termination signal RPE is detected.
이후, 상기 큐모드에서 공급센서(Supply Sensor: SS)가 저전위를 유지하는 동안 상기와 같이 레코딩금지구역시작신호(RPS) 및 레코딩금지구역종료신호(RPE)에 의해 설정되는 레코딩금지구역을 상기 롬에 저장시키고, 상기 공급센서(SS)가 고전위로 되는 순간 레코딩 금지구역 스캔동작을 종료한 다음 상기 메모리카운터를 이용하여 테이프를 처음 위치로 주행시킨다.Thereafter, the recording prohibition zone set by the recording prohibition zone start signal RPS and the recording prohibition zone end signal RPE as described above while the supply sensor SS maintains the low potential in the cue mode. The memory is stored in the ROM, and the recording stop zone scan operation is terminated at the moment when the supply sensor SS becomes high potential, and then the tape is moved to the initial position using the memory counter.
이후, 예약녹화시간이 되면 레코딩을 수행하다가 상기 롬에 저장시킨 레코딩 금지구역에 이르면 그 금지구역에서 정방향 고속주행모드(FF)를 선택하여 레코딩 동작을 중지시킴과 아울러 테이프를 고속주행시킨후 다시 레코딩을 실시하고, 이후에도 상기와 같이 레코딩 동작을 수행하다가 예약녹화시간이 종료되면 레코딩 동작을 중지시키고, 테이프를 레코딩 시작지점에서 되감기한 후 파워스위치를 오프시킨다.After the scheduled recording time, the recording is performed. When the recording prohibited area stored in the ROM is reached, the forward fast driving mode (FF) is selected in the prohibited area to stop the recording operation. After the recording operation is completed as described above, the recording operation is stopped when the scheduled recording time ends, and the power switch is turned off after rewinding the tape from the recording start point.
이상에서 상세히 설명한 바와 같이 본 발명은 사용자가 보존하고자 하는 프로그램의 전.후에 레코딩 금지신호를 기록하여 예약녹화시 그 레코딩 금지신호에 의해 설정된 정보가 지워지지 않게 함으로써 중요 프로그램을 그대로 보존하면서 테이프의 이용율을 향상시킬 수 있는 이점이 있다.As described in detail above, the present invention records the recording prohibition signal before and after the program that the user wants to save so that the information set by the recording prohibition signal is not erased at the time of the reservation recording, thereby preserving the important program as it is and maintaining the utilization rate of the tape. There is an advantage that can be improved.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910008177A KR940004930B1 (en) | 1991-05-20 | 1991-05-20 | Device and method of maintaining a special program in video cassette recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019910008177A KR940004930B1 (en) | 1991-05-20 | 1991-05-20 | Device and method of maintaining a special program in video cassette recorder |
Publications (2)
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KR920022278A KR920022278A (en) | 1992-12-19 |
KR940004930B1 true KR940004930B1 (en) | 1994-06-07 |
Family
ID=19314685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910008177A Expired - Fee Related KR940004930B1 (en) | 1991-05-20 | 1991-05-20 | Device and method of maintaining a special program in video cassette recorder |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940004930B1 (en) |
-
1991
- 1991-05-20 KR KR1019910008177A patent/KR940004930B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR920022278A (en) | 1992-12-19 |
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