KR920015318A - 비디오 테이프레코더의 테이프 속도 판별방법 - Google Patents
비디오 테이프레코더의 테이프 속도 판별방법 Download PDFInfo
- Publication number
- KR920015318A KR920015318A KR1019910000222A KR910000222A KR920015318A KR 920015318 A KR920015318 A KR 920015318A KR 1019910000222 A KR1019910000222 A KR 1019910000222A KR 910000222 A KR910000222 A KR 910000222A KR 920015318 A KR920015318 A KR 920015318A
- Authority
- KR
- South Korea
- Prior art keywords
- speed
- tape
- playback speed
- tape speed
- frequency pulses
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/46—Controlling, regulating, or indicating speed
- G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
- G11B15/4673—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating
- G11B15/4675—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the tape while the head is rotating with provision for information tracking
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
Landscapes
- Television Signal Processing For Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 비디오 테이프레코더의 간차슬로우동작을 설명하기 위한 신호파형도, 제3도는 본 발명에 따른 테이프 속도 판별장치의 블럭다이어그램, 제4도는 본 발명을 수행하기 위한 제어플로우챠트이다.
Claims (1)
- a)제어필스의 갯수와 캡스틴 주파수 펄스의 갯수를 비교하되, 제어펄스의 갯수와 캡스턴 주파수 펄스갯수가 동일할 경우에는 현재의 재생속도가 테이프속도와 동일한 것으로 판별하고;b)현재의 재생속도가 테이프속도와 동일하지 않을 경우 재생속도가 SLP모드이면 캡스턴 주파수 펄스가 몇개 입력되는가를 계수하여 테이프 속도를 판별하며;c)현재 재생속도가 SP 또는 LP모드이면 재생속도를 SLP로 변환한후 b)의 단계를 반복하여 테이프속도를 판별하는 단계를 포함함을 특징으로 하는 비디오 테이프레코더의 테이프속도 판별방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910000222A KR930007793B1 (ko) | 1991-01-09 | 1991-01-09 | 비디오 테이프레코더의 테이프속도 판별방법 |
JP4002425A JP2655775B2 (ja) | 1991-01-09 | 1992-01-09 | ビデオテープレコーダのテープ速度制御装置及びその方法 |
DE4200359A DE4200359A1 (de) | 1991-01-09 | 1992-01-09 | Einrichtung und verfahren zum veraendern der videobandgeschwindigkeit in einem videokassettenrekorder |
GB9200372A GB2252864B (en) | 1991-01-09 | 1992-01-09 | Converting tape speed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910000222A KR930007793B1 (ko) | 1991-01-09 | 1991-01-09 | 비디오 테이프레코더의 테이프속도 판별방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920015318A true KR920015318A (ko) | 1992-08-26 |
KR930007793B1 KR930007793B1 (ko) | 1993-08-19 |
Family
ID=19309573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910000222A KR930007793B1 (ko) | 1991-01-09 | 1991-01-09 | 비디오 테이프레코더의 테이프속도 판별방법 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2655775B2 (ko) |
KR (1) | KR930007793B1 (ko) |
DE (1) | DE4200359A1 (ko) |
GB (1) | GB2252864B (ko) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT322642B (de) * | 1973-08-01 | 1975-05-26 | Philips Nv | Aufzeichnungs- und wiedergabegerät |
JPS5062008A (ko) * | 1973-10-01 | 1975-05-27 | ||
DE2803538C2 (de) * | 1978-01-27 | 1982-11-25 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Bildaufzeichnungsgerät |
JPS5928267A (ja) * | 1982-08-09 | 1984-02-14 | Nec Corp | プログラム演奏時間圧縮伸長装置 |
US4679098A (en) * | 1982-09-17 | 1987-07-07 | Ampex Corporation | Video tape transport servo for variable tape speed control |
US4594618A (en) * | 1982-12-24 | 1986-06-10 | Canon Kabushiki Kaisha | Information reproducing apparatus |
JPS60140555A (ja) * | 1983-12-27 | 1985-07-25 | Matsushita Electric Ind Co Ltd | 自動判別回路 |
CA1270946A (en) * | 1985-07-23 | 1990-06-26 | Mitsugu Yoshihiro | Capstan servo circuit |
JPS63241743A (ja) * | 1987-03-28 | 1988-10-07 | Toshiba Corp | 記録速度判別装置 |
JPS63304455A (ja) * | 1987-06-04 | 1988-12-12 | Matsushita Electric Ind Co Ltd | 磁気記録再生装置のテ−プ走行速度設定装置 |
-
1991
- 1991-01-09 KR KR1019910000222A patent/KR930007793B1/ko not_active IP Right Cessation
-
1992
- 1992-01-09 JP JP4002425A patent/JP2655775B2/ja not_active Expired - Fee Related
- 1992-01-09 DE DE4200359A patent/DE4200359A1/de not_active Withdrawn
- 1992-01-09 GB GB9200372A patent/GB2252864B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB9200372D0 (en) | 1992-02-26 |
DE4200359A1 (de) | 1992-07-16 |
KR930007793B1 (ko) | 1993-08-19 |
JP2655775B2 (ja) | 1997-09-24 |
GB2252864B (en) | 1994-11-30 |
JPH06168504A (ja) | 1994-06-14 |
GB2252864A (en) | 1992-08-19 |
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FPAY | Annual fee payment |
Payment date: 20020726 Year of fee payment: 10 |
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