HK148194A - Circuit arrangement for a playback device for audio or video discs - Google Patents
Circuit arrangement for a playback device for audio or video discsInfo
- Publication number
- HK148194A HK148194A HK148194A HK148194A HK148194A HK 148194 A HK148194 A HK 148194A HK 148194 A HK148194 A HK 148194A HK 148194 A HK148194 A HK 148194A HK 148194 A HK148194 A HK 148194A
- Authority
- HK
- Hong Kong
- Prior art keywords
- pct
- comparator
- error signal
- audio
- coarse
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
- G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
Landscapes
- Optical Recording Or Reproduction (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Control Of Position Or Direction (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853508422 DE3508422A1 (de) | 1985-03-09 | 1985-03-09 | Schaltungsanordnung fuer ein abspielgeraet von audio- und/oder videoplatten |
| PCT/EP1986/000126 WO1986005308A1 (en) | 1985-03-09 | 1986-03-08 | Circuit arrangement for a playback device for audio or video discs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK148194A true HK148194A (en) | 1995-01-06 |
Family
ID=6264697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK148194A HK148194A (en) | 1985-03-09 | 1994-12-30 | Circuit arrangement for a playback device for audio or video discs |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4803676A (xx) |
| EP (1) | EP0215867B1 (xx) |
| JP (1) | JPS62502000A (xx) |
| KR (1) | KR940005103B1 (xx) |
| AT (1) | ATE48333T1 (xx) |
| DE (2) | DE3508422A1 (xx) |
| DK (1) | DK531686A (xx) |
| HK (1) | HK148194A (xx) |
| WO (1) | WO1986005308A1 (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4424216B4 (de) * | 1994-07-09 | 2005-06-16 | Robert Bosch Gmbh | Schaltungsanordnung zur Spurnachführung für ein Abspielgerät |
| US5793556A (en) * | 1994-10-19 | 1998-08-11 | International Business Machines Corporation | High speed PES demodulator |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
| JPS53147509A (en) * | 1977-05-27 | 1978-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Tacking apparatus |
| JPS5538686A (en) * | 1978-09-13 | 1980-03-18 | Pioneer Video Corp | Tracking controller of optical information reader |
| NL7812111A (nl) * | 1978-12-13 | 1980-06-17 | Philips Nv | Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte. |
| US4234837A (en) * | 1979-01-12 | 1980-11-18 | Mca Discovision, Inc. | Digital center tracking system |
| JPS5611673A (en) * | 1979-07-03 | 1981-02-05 | Pioneer Video Corp | Address information retrieval method in information recording medium reproducing unit |
| JPS6215864Y2 (xx) * | 1980-08-04 | 1987-04-22 | ||
| JPS5744234A (en) * | 1980-08-27 | 1982-03-12 | Mitsubishi Electric Corp | Optical servo device |
| JPS58169343A (ja) * | 1982-03-31 | 1983-10-05 | Nec Home Electronics Ltd | デイジタル・オ−デイオデイスクプレ−ヤ |
| JPS59116972A (ja) * | 1982-12-23 | 1984-07-06 | Olympus Optical Co Ltd | 光学式記録再生装置用トラッキング装置の異常状態処理装置 |
| JPS59148185A (ja) * | 1983-02-15 | 1984-08-24 | Oki Electric Ind Co Ltd | トラツキング方式 |
| NL8303029A (nl) * | 1983-08-31 | 1985-03-18 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige optische registratiedrager. |
-
1985
- 1985-03-09 DE DE19853508422 patent/DE3508422A1/de not_active Withdrawn
-
1986
- 1986-03-08 JP JP61501891A patent/JPS62502000A/ja active Granted
- 1986-03-08 KR KR1019860700786A patent/KR940005103B1/ko not_active IP Right Cessation
- 1986-03-08 DE DE8686901854T patent/DE3667220D1/de not_active Expired - Lifetime
- 1986-03-08 WO PCT/EP1986/000126 patent/WO1986005308A1/de active IP Right Grant
- 1986-03-08 EP EP86901854A patent/EP0215867B1/de not_active Expired
- 1986-03-08 AT AT86901854T patent/ATE48333T1/de not_active IP Right Cessation
- 1986-03-08 US US06/945,575 patent/US4803676A/en not_active Expired - Lifetime
- 1986-11-06 DK DK531686A patent/DK531686A/da not_active Application Discontinuation
-
1994
- 1994-12-30 HK HK148194A patent/HK148194A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3667220D1 (de) | 1990-01-04 |
| US4803676A (en) | 1989-02-07 |
| DE3508422A1 (de) | 1986-09-11 |
| ATE48333T1 (de) | 1989-12-15 |
| JPS62502000A (ja) | 1987-08-06 |
| DK531686D0 (da) | 1986-11-06 |
| KR940005103B1 (ko) | 1994-06-10 |
| WO1986005308A1 (en) | 1986-09-12 |
| EP0215867B1 (de) | 1989-11-29 |
| DK531686A (da) | 1986-11-06 |
| JPH0424783B2 (xx) | 1992-04-28 |
| EP0215867A1 (de) | 1987-04-01 |
| KR870700166A (ko) | 1987-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PF | Patent in force | ||
| PE | Patent expired |
Effective date: 20060307 |