KR960003876B1 - Recording method for video casstte recorder - Google Patents
Recording method for video casstte recorder Download PDFInfo
- Publication number
- KR960003876B1 KR960003876B1 KR1019930031082A KR930031082A KR960003876B1 KR 960003876 B1 KR960003876 B1 KR 960003876B1 KR 1019930031082 A KR1019930031082 A KR 1019930031082A KR 930031082 A KR930031082 A KR 930031082A KR 960003876 B1 KR960003876 B1 KR 960003876B1
- Authority
- KR
- South Korea
- Prior art keywords
- recording
- head
- video
- recorder
- erasing head
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
Description
제 1 도는 일반적인 비디오 카세트 레코더(VCR)의 주행계 구성도.1 is a configuration diagram of a traveling system of a general video cassette recorder (VCR).
제 2 도는 본 발명에 따른 VCR 마이콤의 내부 블럭도.2 is an internal block diagram of a VCR microcomputer according to the present invention.
제 3 도는 본 발명에 따른 VCR 마이콤의 동작 흐름도.3 is a flowchart of operation of a VCR microcomputer according to the present invention.
* 도면의 주요부분에 대한 부호의 설명.* Explanation of symbols for the main parts of the drawings.
1 : 드럼 2 : 소거헤드1 drum 2 erasing head
4 : 마이콤 5 : 속도검출기4: micom 5: speed detector
6 : 기록헤드제어부 7 : 타이밍 발생기6: recording head control unit 7: timing generator
8 : 소거헤드 제어부 9 : 녹화선택버튼8: Mute head control unit 9: Record selection button
a,b : 영상신호 기록헤드a, b: video signal recording head
c : 음성신호 및 제어(CONTROL)신호 기록헤드(HEAD)c: Voice signal and CONTROL signal recording head (HEAD)
본 발명은 비디오 카세트 레코더의 녹화방법에 관한 것으로서, 특히 녹화선택버튼 온(on) 접속시 소거헤드만을 즉시 동작시키고, 비디오헤드와 오디오 콘트롤헤드를 일정시간 지연 동작시켜 녹화초기에 발생되는 오버랩(Overlap)현상을 제거토록 한 비디오 카세트 레코더의 관한 녹화방법에 관한 것이다.The present invention relates to a recording method of a video cassette recorder, and in particular, to operate only the erasing head immediately when the recording selection button on connection, and the video head and the audio control head for a certain time delay operation overlap occurs (overlap) The present invention relates to a recording method of a video cassette recorder which eliminates the phenomenon.
일반적으로 비디오 카세트 레코더에서 녹화시 소거헤드와 비디오헤드의 거리에 의해 초기 기록시 신호가 중첩되어 오버랩부분이 발생하게 된다. 즉 제 1 도에 도시된 주행계의 구성도에서와 같이 영상신호가 겹치지 않기 위해서는 최소한 소거헤드(2)에서 a까지의 거리가 필요하며, 이 거리를 l이라고 할 때 녹화속도에 따라 지연시간을 달리할 필요가 있다.In general, in a video cassette recorder, overlapping signals are generated by overlapping signals during initial recording due to the distance between the erasing head and the video head during recording. In other words, at least the distance from the erasing head 2 to a is necessary so that the video signals do not overlap as shown in the configuration of the traveling system shown in FIG. 1. When the distance is l, the delay time is determined according to the recording speed. You need to do it differently.
따라서 종래에는 비디오 카세트 레코더의 기록시 녹화선택버튼을 누르면 소거헤드(2)와 비디오 및 오디오 콘트롤 헤드의 기록헤드(a,b, c)가 동시에 동작하여 소거헤드(2)의 동작한 범위가 영상기록헤드(a, b)에 올때까지 기록모드에 수초(SP모드일 경우)에서 십수초(EP모드일 경우)까지 오버랩부분이 발생함에 따라 텔레비젼 화면상에 노이즈의 흐름으로 나타나게 되어 비디오 카세트 레코더의 신뢰성이 저하되는 것이다.Therefore, conventionally, when the recording selection button is pressed during recording of the video cassette recorder, the erasing head 2 and the recording heads a, b, and c of the video and audio control heads operate simultaneously. As the overlap occurs from several seconds (in SP mode) to several tens (in EP mode) in the recording mode until it reaches the recording heads (a, b), it appears as a flow of noise on the television screen. The reliability is deteriorated.
본 발명은 상기와 같은 문제점을 해소하기 위하여 녹화선택버튼이 온(on)시 소거헤드만을 먼저 동작시키고, 상기 소거헤드를 거친 테이프가 기록헤드에 도달할 시간만큼의 거리(L)이 지난 후 기록헤드를 동작시키도록 하여 소거헤드와 기록헤드의 거리차에 의해 발생되는 신호중첩의 오버랩현상을 제거하여 비디오 테이프 레코더의 신뢰성 향상에 기여할 수 있도록 하는데 본 발명의 목적이 있는 것이다.The present invention operates only the erase head first when the recording select button is on in order to solve the above problems, and writes after a distance (L) has elapsed as long as the tape passing through the erase head reaches the recording head. It is an object of the present invention to make the head operate to eliminate the overlap of signal overlapping caused by the distance difference between the erasing head and the recording head, thereby contributing to improving the reliability of the video tape recorder.
상기와 같은 목적을 달성하기 위한 본 발명의 특징은 비디오 테이프 레코더의 녹화방법에 있어서, 녹화선택버튼 접속시 소거헤드를 먼저 동작시키고, 소정시간 경과후 기록헤드를 동작되도록 한 것이다.A feature of the present invention for achieving the above object is that in the recording method of a video tape recorder, the erasing head is operated first when the recording selection button is connected, and the recording head is operated after a predetermined time elapses.
이하, 첨부된 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.
제 2 도는 본 발명에 따른 비디오 테이프 레코더의 마이콤(4) 내부 블록도로서, 녹화선택버튼(9)의 출력단에는 소거헤드 제어부(8)를 통해 소거헤드(2)와 타이밍 발생기(7)가 연결되어 있으며, 녹화속도를 인지하는 속도검출기(5)의 출력단어는 상기 타이밍 발생기(7)를 거쳐 영상기록헤드(a,b)에 연결되어 있다.2 is a block diagram of a microcomputer 4 of a video tape recorder according to the present invention, wherein an erasing head 2 and a timing generator 7 are connected to an output terminal of a recording selection button 9 through an erasing head controller 8. The output word of the speed detector 5 which recognizes the recording speed is connected to the image recording heads a and b via the timing generator 7.
제 3 도는 본 발명에 따른 상기 마이콤(4)의 동작흐름도이다. 상기와 같이 이루어진 본 발명을 제 2 도 내지 제 3 도에 의해 설명하면, 먼저 마이콤(4) 자체에서 속도검출기(5)에 의해 녹화속도를 판단하고 있으며, 이의 녹화속도 검출에 따라 타이밍 발생기(7)를 제어하여 기록헤드(a, b)의 동작지연시간을 설정하고, 이의 지연시간은 소거헤드(2)와 기록헤드(a, b)의 평균거리(L), 그리고 녹화속도에 따라 프로그래밍이 가능하도록 되어 있다. 즉 녹화선택버튼(9)이 온상태로 접속됨이 판단(단계 101)되면, 이전의 상태가 녹화모드상태임을 판단(단계 102)하여 이전의 상태가 녹화모드일 경우(기록중 일시 정지했다가 다시 기록할 경우)기록 및 소거헤드(a,b)(2)를 동시에 동작시켜 녹화상태를 유지(단계 104)한다.3 is an operational flowchart of the microcomputer 4 according to the present invention. 2 to 3, the recording speed is first determined by the speed detector 5 in the microcomputer 4 itself, and the timing generator 7 according to the recording speed detection thereof. ), And set the operation delay time of the recording heads (a, b), and the delay time depends on the average distance (L) of the erasing head (2) and the recording heads (a, b) and the recording speed. It is possible. That is, when it is determined that the recording selection button 9 is connected in the on state (step 101), it is determined that the previous state is the recording mode state (step 102), and when the previous state is the recording mode (pause during recording) When recording again, the recording and erasing heads (a, b) 2 are operated simultaneously to maintain the recording state (step 104).
그러나 이전의 상태가 녹화모드가 아닐 경우에는 소거헤드 제어부(8)에 의해 소거헤드(2)만을 동작(단계 105)시키고, 타이밍 발생기(7)에서 소정시간이 경과하면 기록헤드 제어부(6)를 인에이블시켜 기록헤드(a, b)를 동작(단계 106)되도록 하여 테이프상에 화상 및 오디오를 기록한다.However, when the previous state is not in the recording mode, only the erasing head 2 is operated (step 105) by the erasing head control section 8, and when the predetermined time has elapsed in the timing generator 7, the recording head control section 6 is turned off. The recording and recording heads a and b are operated (step 106) to enable recording of images and audio on the tape.
이상에서 상술한 바와같이 본 발명은 녹화선택버튼이 온(on)시 소거헤드만을 먼저 동작시키고, 상기 소거헤드를 거친 테이프가 기록헤드에 도달할 시간만큼의 길이(L)이 지난 후 기록헤드를 동작시키도록 하여 소거헤드와 기록헤드의 거리차에 의해 발생되는 신호중첩의 오버랩현상을 제거하여 비디오 테이프 레코더의 신뢰성 향상에 기여할 수 있다.As described above, the present invention operates only the erasing head first when the recording selection button is on, and then, after the length (L) of the tape passing through the erasing head reaches the recording head, By eliminating the overlap of signal overlapping caused by the distance difference between the erasing head and the recording head, it is possible to contribute to the improvement of the reliability of the video tape recorder.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930031082A KR960003876B1 (en) | 1993-12-29 | 1993-12-29 | Recording method for video casstte recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930031082A KR960003876B1 (en) | 1993-12-29 | 1993-12-29 | Recording method for video casstte recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950022948A KR950022948A (en) | 1995-07-28 |
| KR960003876B1 true KR960003876B1 (en) | 1996-03-23 |
Family
ID=19374091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930031082A KR960003876B1 (en) | 1993-12-29 | 1993-12-29 | Recording method for video casstte recorder |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960003876B1 (en) |
-
1993
- 1993-12-29 KR KR1019930031082A patent/KR960003876B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR950022948A (en) | 1995-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3280908B2 (en) | Video frame recording method | |
| KR960003876B1 (en) | Recording method for video casstte recorder | |
| US6314233B1 (en) | Information signal reproducing apparatus | |
| JP3138235B2 (en) | Recording and playback device for television broadcasting | |
| JP3460470B2 (en) | Magnetic recording / reproducing device | |
| KR100200286B1 (en) | Recording method for tvcr | |
| KR0136704B1 (en) | Edit period compensation method of vcr | |
| KR100196853B1 (en) | Auto-tracking method in a video cassette recorder when the video cassette recorder is still/slow playback mode | |
| KR0132207Y1 (en) | Elimination head controller | |
| JP2516119B2 (en) | Recording speed switching method for timer recording | |
| KR970008237B1 (en) | Apparatus and method for controlling editing in a vcr | |
| JP3133707B2 (en) | Recording and playback device for television broadcasting | |
| JP3133698B2 (en) | Television broadcast signal recording and playback device | |
| KR200159337Y1 (en) | Circuit for muting audio in vcr | |
| KR100199869B1 (en) | Apparatus and method for controlling power supply of video cassette recorder | |
| KR19990035047A (en) | How to control recording of VRF | |
| JPH1153783A (en) | Tv signal recording/reproducing device | |
| KR19990027387U (en) | VSI system with recording indicator | |
| KR960015467A (en) | Video cassette recorder (VCR) with non-recording detection / recording function of tape | |
| KR19980023488A (en) | Auto Tracking Method in Video Cassette Recorder | |
| KR20000043298A (en) | Device for dubbing of vcr | |
| KR980004577A (en) | How to control the best recording of videotape | |
| KR19990079535A (en) | Overlapping method of video signal | |
| JPH11203749A (en) | Information reproducing device and information recording and reproducing device | |
| KR19980040564A (en) | Repeated playback control method of VSI |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| G160 | Decision to publish patent application | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20070305 Year of fee payment: 12 |
|
| LAPS | Lapse due to unpaid annual fee |