KR980004614A - The tape damage prevention circuit of the video cassette recorder (VCR) - Google Patents
The tape damage prevention circuit of the video cassette recorder (VCR) Download PDFInfo
- Publication number
- KR980004614A KR980004614A KR1019960024404A KR19960024404A KR980004614A KR 980004614 A KR980004614 A KR 980004614A KR 1019960024404 A KR1019960024404 A KR 1019960024404A KR 19960024404 A KR19960024404 A KR 19960024404A KR 980004614 A KR980004614 A KR 980004614A
- Authority
- KR
- South Korea
- Prior art keywords
- capstan motor
- current flowing
- tape
- vcr
- prevention circuit
- Prior art date
Links
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
본 발명은 VCR의 테이프 손상 방지회로에 관한 것으로서, 비디오 카세트 레코더가 테이프 주행 모드를 실행 할 때 테이프가 카세트 데크에 제대로 장착되지 못하여 엉키거나 꼬인 상태로 실행되어 비디오 테이프가 끊어지거나 손상되는 것을 방지하기 위한 것이다. 이를 위하여 본 발명은 캡스턴 모터 구동부에 흐르는 전류를 감지하기 위한 캡스턴 모터 전류 감지부; 상기 캡스턴 모터 전류 감지부의 전류 감지신호를 체크하여 기준치와 비교하고, 비교 결과 캡스턴 모터에 흐르는 전류량이 임의의 기준치를 넘는 경우 테이프 주행상태가 비정상임을 판단하여 캡스턴 모터 구동부로 유입되는 동작 전류를 차단하는 시스템 제어부를 포함하여 구성함을 특징으로 한다.The present invention relates to a tape damage prevention circuit for a VCR, which prevents a tape from being broken into a cassette deck when the video cassette recorder is running in a tape running mode and is executed in a tangled or twisted state, . To this end, the present invention relates to a capstan motor current sensing unit for sensing a current flowing in a capstan motor driving unit. If the amount of current flowing through the capstan motor exceeds a predetermined reference value, it is determined that the tape running state is abnormal, and the operation current flowing into the capstan motor driving unit is cut off And a system control unit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명에 따른 VCR의 테이프 손상 방지회로의 일 실시예도.FIG. 2 shows an embodiment of a tape damage prevention circuit of a VCR according to the present invention. FIG.
제3도는 본 발명의 시스템 제어부에서 실시되는 캡스턴 모터 전류 차단과정을 설명하기 위한 동작 흐름도.FIG. 3 is a flow chart for explaining a capstan motor current interruption process performed by the system controller of the present invention. FIG.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960024404A KR980004614A (en) | 1996-06-27 | 1996-06-27 | The tape damage prevention circuit of the video cassette recorder (VCR) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960024404A KR980004614A (en) | 1996-06-27 | 1996-06-27 | The tape damage prevention circuit of the video cassette recorder (VCR) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR980004614A true KR980004614A (en) | 1998-03-30 |
Family
ID=66241182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960024404A KR980004614A (en) | 1996-06-27 | 1996-06-27 | The tape damage prevention circuit of the video cassette recorder (VCR) |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR980004614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000042576A (en) * | 1998-12-26 | 2000-07-15 | 전주범 | Device and method for driving deck of vcr for vehicle |
-
1996
- 1996-06-27 KR KR1019960024404A patent/KR980004614A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000042576A (en) * | 1998-12-26 | 2000-07-15 | 전주범 | Device and method for driving deck of vcr for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |