KR840001745A - 헤드 서보 회로 - Google Patents
헤드 서보 회로 Download PDFInfo
- Publication number
- KR840001745A KR840001745A KR1019820004020A KR820004020A KR840001745A KR 840001745 A KR840001745 A KR 840001745A KR 1019820004020 A KR1019820004020 A KR 1019820004020A KR 820004020 A KR820004020 A KR 820004020A KR 840001745 A KR840001745 A KR 840001745A
- Authority
- KR
- South Korea
- Prior art keywords
- mode
- high speed
- reproducing
- servo circuit
- drum motor
- Prior art date
Links
- 230000008929 regeneration Effects 0.000 claims 3
- 238000011069 regeneration method Methods 0.000 claims 3
- 230000001360 synchronised effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
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
-
- 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
- G11B15/473—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 heads
-
- 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
- G11B15/473—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 heads
- G11B15/4731—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 heads control of headwheel rotation
Landscapes
- Television Signal Processing For Recording (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명 회로의 한 실시예를 도시하는 블록 곡통도,
제2a도 내지 제2b도는 각기 제1도의 동작 설명용 신호 파형도
Claims (2)
- 기록 매체로부터 이미 기록신호를 재생하는 회전헤드를 회전시키는 드럼모터를 고속 재생모드시에는 고속 재생모드 이외의 재생모드시와는 다른 속도로 회전제어하는 헤드서보회로에 있어서, 고속재생모드 이외의 재생모드시에 그 드럼모터의 회전에 동기한 신호와 일정부파수의 기준신호를 각기 위상 비교하여 얻은 위상 오차신호를 그 드럼모터에 인가하는 위상 제어루프를 고속 재생모드시에 절단함과 함께 그 고속재생 모드시에 그 기준신호를 그 드럼모터의 회전에 동기한 신호와 위상 동기되도록 구성한 것을 특징으로 하는 헤드 서보 회로.
- ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56140800A JPS5845651A (ja) | 1981-09-07 | 1981-09-07 | ヘツドサ−ボ回路 |
JP140800 | 1981-09-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840001745A true KR840001745A (ko) | 1984-05-16 |
KR900001147B1 KR900001147B1 (ko) | 1990-02-27 |
Family
ID=15277027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8204020A KR900001147B1 (ko) | 1981-09-07 | 1982-09-06 | 헤드 서보 회로 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4486794A (ko) |
JP (1) | JPS5845651A (ko) |
KR (1) | KR900001147B1 (ko) |
DE (1) | DE3233147C2 (ko) |
FR (1) | FR2512574B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100516439B1 (ko) * | 1998-08-14 | 2005-11-25 | 주식회사 엘지생활건강 | 광택성이 향상된 폴리에틸렌 용기 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998342A (ja) * | 1982-11-26 | 1984-06-06 | Victor Co Of Japan Ltd | 磁気再生装置のサ−ボ回路 |
EP0116926B1 (en) * | 1983-02-14 | 1987-01-21 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus |
JPS59219082A (ja) * | 1983-05-27 | 1984-12-10 | Hitachi Ltd | 磁気録画再生装置 |
US4630142A (en) * | 1984-11-02 | 1986-12-16 | Sony Corporation | Apparatus for reproducing a digital signal |
JPS61193581A (ja) * | 1985-02-21 | 1986-08-28 | Fuji Photo Film Co Ltd | 映像信号再生装置における同期制御方式 |
JPS61217954A (ja) * | 1985-03-25 | 1986-09-27 | Sony Corp | 記録再生装置 |
CA1253619A (en) * | 1985-04-22 | 1989-05-02 | Sony Corporation | Apparatus for reproducing a digital signal |
US4885793A (en) * | 1987-02-10 | 1989-12-05 | Sanyo Electric Co., Ltd. | Digital servo system using microcomputer for controlling phase and speed of rotary body |
US4930027A (en) * | 1988-11-23 | 1990-05-29 | Ampex Corporation | Method and apparatus for tape speed override operation when recovering helical audio |
DE69122051T2 (de) * | 1990-11-30 | 1997-02-27 | Victor Company Of Japan | Trommelservosystem |
KR0163711B1 (ko) * | 1992-10-01 | 1999-01-15 | 윤종용 | 광 디스크 시스템의 스핀들 모터 제어 회로 |
JP3228800B2 (ja) * | 1992-11-11 | 2001-11-12 | 株式会社日立製作所 | モータ制御装置およびこれを用いた磁気記録再生装置 |
GB0127410D0 (en) * | 2001-11-15 | 2002-01-09 | Renishaw Plc | Laser substrate treatment |
GB0201101D0 (en) | 2002-01-18 | 2002-03-06 | Renishaw Plc | Laser marking |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297135B (de) * | 1962-06-06 | 1969-06-12 | Victor Company Of Japan | Verfahren und Vorrichtung zur Steuerung der Aufzeichnung von Videosignalen |
US3270130A (en) * | 1962-03-27 | 1966-08-30 | Rca Corp | Servo system with plural reference signals |
US3398235A (en) * | 1963-11-13 | 1968-08-20 | Rank Bush Murphy Ltd | Headwheel speed control system for reproducing magnetically recorded television signals |
GB1336583A (en) * | 1969-12-04 | 1973-11-07 | Mitsushita Electrical Ind Co L | Rotary head type magnetic recording and reproducing unit |
US3643012A (en) * | 1970-02-16 | 1972-02-15 | Ampex | Rapid frame synchronization of video tape reproduce signals |
JPS56104587A (en) * | 1980-01-23 | 1981-08-20 | Akai Electric Co Ltd | Fast-forwarding reproducing and rewinding reproducing system in vtr |
JPS5742277A (en) * | 1980-08-28 | 1982-03-09 | Toshiba Corp | Release device for special reproduction |
JPS5775076A (en) * | 1980-10-28 | 1982-05-11 | Pioneer Electronic Corp | High-speed picture retrieving device |
US4521815A (en) * | 1981-07-10 | 1985-06-04 | Victor Company Of Japan, Limited | Reproducing apparatus capable of performing high-speed reproduction of a video signal |
-
1981
- 1981-09-07 JP JP56140800A patent/JPS5845651A/ja active Granted
-
1982
- 1982-09-02 US US06/414,294 patent/US4486794A/en not_active Expired - Lifetime
- 1982-09-06 KR KR8204020A patent/KR900001147B1/ko active
- 1982-09-06 FR FR8215134A patent/FR2512574B1/fr not_active Expired
- 1982-09-07 DE DE3233147A patent/DE3233147C2/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100516439B1 (ko) * | 1998-08-14 | 2005-11-25 | 주식회사 엘지생활건강 | 광택성이 향상된 폴리에틸렌 용기 |
Also Published As
Publication number | Publication date |
---|---|
FR2512574B1 (fr) | 1986-05-02 |
FR2512574A1 (fr) | 1983-03-11 |
DE3233147A1 (de) | 1983-04-14 |
US4486794A (en) | 1984-12-04 |
JPS5845651A (ja) | 1983-03-16 |
DE3233147C2 (de) | 1985-03-21 |
JPS6258057B2 (ko) | 1987-12-03 |
KR900001147B1 (ko) | 1990-02-27 |
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