KR970076778A - Video Cassette Recorder with Tape Drive Status Detection via Control Signal Search - Google Patents
Video Cassette Recorder with Tape Drive Status Detection via Control Signal Search Download PDFInfo
- Publication number
- KR970076778A KR970076778A KR1019960016871A KR19960016871A KR970076778A KR 970076778 A KR970076778 A KR 970076778A KR 1019960016871 A KR1019960016871 A KR 1019960016871A KR 19960016871 A KR19960016871 A KR 19960016871A KR 970076778 A KR970076778 A KR 970076778A
- Authority
- KR
- South Korea
- Prior art keywords
- ctl
- signal
- control signal
- waveform shaping
- output
- Prior art date
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- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
본 발명은 콘트롤헤드에서 검출된 CTL신호를 이용하여 테이프의 주행상태를 확인할 수 있도록 된 콘트롤신호 검색을 통한 테이프 주행상태 감지기능을 갖춘 비디오 카세트 레코더에 관한 것으로, 장치전반의 동작을 제어하는 제어부와, 이 제어부로부터의 소정 제어명령에 따라 약정된 듀티비의 콘트롤신호(CTL)를 기록 또는 재생하는 CTL헤드, 상기 CTL헤드에서 출력되는 콘트롤신호(CTL)를 구형파로 파형정형하기 위한 파형정형회로, 및 이 파형정형회로로부터 출력되는 신호가 소정 듀티(DUTY)비를 갖는 균일한 신호인지의 여부에 따라 제1레벨의 검출신호를 출력하는 펄스판정부를 포함하여 구성되고, 상기 제어부는 파형정형회로로부터 제1레벨의 검출신호가 출력되게 되면 테이프 주행 이상상태로 판정하고 현재의 동작을 중지하도록 제어하는 것을 특징으로 한다.[0001] The present invention relates to a video cassette recorder having a tape running state detection function through a control signal search for checking a running state of a tape using a CTL signal detected by a control head, A CTL head for recording or reproducing a control signal CTL having an agreed duty ratio in accordance with a predetermined control command from the controller, a waveform shaping circuit for waveform shaping the control signal CTL output from the CTL head into a rectangular wave, And a pulse determination section for outputting a first level detection signal in accordance with whether or not the signal output from the waveform shaping circuit is a uniform signal having a predetermined duty ratio, When the detection signal of the first level is output, it is determined that the tape running abnormality is present and the current operation is stopped It shall be.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명의 1실시예에 따른 콘트롤신호 검색을 통한 테이프 주행상태 감지기능을 갖춘 VCR의 내부구성을 나타낸 블럭구성도.FIG. 2 is a block diagram showing an internal configuration of a VCR having a tape running state detection function through a control signal search according to an embodiment of the present invention. FIG.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960016871A KR970076778A (en) | 1996-05-18 | 1996-05-18 | Video Cassette Recorder with Tape Drive Status Detection via Control Signal Search |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960016871A KR970076778A (en) | 1996-05-18 | 1996-05-18 | Video Cassette Recorder with Tape Drive Status Detection via Control Signal Search |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR970076778A true KR970076778A (en) | 1997-12-12 |
Family
ID=66219605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960016871A KR970076778A (en) | 1996-05-18 | 1996-05-18 | Video Cassette Recorder with Tape Drive Status Detection via Control Signal Search |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970076778A (en) |
-
1996
- 1996-05-18 KR KR1019960016871A patent/KR970076778A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |