DK166055C - En fremgangsmaade og et kredsloeb til automatisk korrektion af servokredsen i et apparat med optisk aftastning af en roterende informationsbaerer. - Google Patents
En fremgangsmaade og et kredsloeb til automatisk korrektion af servokredsen i et apparat med optisk aftastning af en roterende informationsbaerer.Info
- Publication number
- DK166055C DK166055C DK614386A DK614386A DK166055C DK 166055 C DK166055 C DK 166055C DK 614386 A DK614386 A DK 614386A DK 614386 A DK614386 A DK 614386A DK 166055 C DK166055 C DK 166055C
- Authority
- DK
- Denmark
- Prior art keywords
- circuit
- fact
- scanning
- anomalies
- servo
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000005259 measurement Methods 0.000 abstract 2
Classifications
-
- 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
-
- 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
- G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration
-
- 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
- G11B7/09—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
- G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Communication System (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3514035 | 1985-04-18 | ||
| DE19853514035 DE3514035A1 (de) | 1985-04-18 | 1985-04-18 | Automatisches korrektursystem fuer den servokreis eines geraetes mit optischer abtastung eines rotierenden informationstraegers |
| PCT/EP1986/000223 WO1986006200A1 (fr) | 1985-04-18 | 1986-04-17 | Systeme de correction automatique pour le servo-circuit d'un dispositif a balayage optique d'un support d'informations rotatif |
| EP8600223 | 1986-04-17 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK614386D0 DK614386D0 (da) | 1986-12-18 |
| DK614386A DK614386A (da) | 1986-12-18 |
| DK166055B DK166055B (da) | 1993-03-01 |
| DK166055C true DK166055C (da) | 1993-07-12 |
Family
ID=6268493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK614386A DK166055C (da) | 1985-04-18 | 1986-12-18 | En fremgangsmaade og et kredsloeb til automatisk korrektion af servokredsen i et apparat med optisk aftastning af en roterende informationsbaerer. |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0221936B1 (fr) |
| JP (1) | JPH0785344B2 (fr) |
| KR (1) | KR970006831B1 (fr) |
| AT (1) | ATE57785T1 (fr) |
| DE (2) | DE3514035A1 (fr) |
| DK (1) | DK166055C (fr) |
| HK (1) | HK176795A (fr) |
| WO (1) | WO1986006200A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3862875B2 (ja) * | 1998-10-29 | 2006-12-27 | パイオニア株式会社 | ディスク再生装置 |
| KR20040106577A (ko) * | 2002-05-21 | 2004-12-17 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 개선된 재생성능을 갖는 광 디스크 시스템 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4307418A (en) * | 1979-10-12 | 1981-12-22 | Rca Corporation | Video disc player system for correlating stylus position with information previously detected from disc |
| US4313134A (en) * | 1979-10-12 | 1982-01-26 | Rca Corporation | Track error correction system as for video disc player |
| JPS57104386A (en) * | 1980-12-19 | 1982-06-29 | Trio Kenwood Corp | Video disc playback device |
| US4488278A (en) * | 1982-08-17 | 1984-12-11 | Rca Corporation | Coding system for digital audio disc record |
| JPS5936385A (ja) * | 1982-08-20 | 1984-02-28 | Matsushita Electric Ind Co Ltd | トラツクアドレス読み取り回路 |
| JPS59117762A (ja) * | 1982-12-24 | 1984-07-07 | Nippon Columbia Co Ltd | デイスク再生装置 |
| JPS59167879A (ja) * | 1983-03-15 | 1984-09-21 | Toshiba Corp | デイスクレコ−ド再生系におけるトラツク飛び検出装置 |
| JPS59201274A (ja) * | 1983-04-27 | 1984-11-14 | Sony Corp | デイスク再生装置 |
| JPS607658A (ja) * | 1983-06-24 | 1985-01-16 | Victor Co Of Japan Ltd | 円盤状情報記録媒体の欠陥検査装置 |
| JPS6043270A (ja) * | 1983-08-19 | 1985-03-07 | Sony Corp | デイスク・プレ−ヤ |
| NL8303565A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een plaatvormige optisch uitleesbare registratiedrager. |
-
1985
- 1985-04-18 DE DE19853514035 patent/DE3514035A1/de not_active Withdrawn
-
1986
- 1986-04-17 WO PCT/EP1986/000223 patent/WO1986006200A1/fr active IP Right Grant
- 1986-04-17 JP JP61502710A patent/JPH0785344B2/ja not_active Expired - Lifetime
- 1986-04-17 DE DE8686902818T patent/DE3675150D1/de not_active Expired - Lifetime
- 1986-04-17 EP EP86902818A patent/EP0221936B1/fr not_active Expired - Lifetime
- 1986-04-17 AT AT86902818T patent/ATE57785T1/de not_active IP Right Cessation
- 1986-04-17 KR KR1019860700905A patent/KR970006831B1/ko not_active IP Right Cessation
- 1986-12-18 DK DK614386A patent/DK166055C/da not_active IP Right Cessation
-
1995
- 1995-11-16 HK HK176795A patent/HK176795A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0221936A1 (fr) | 1987-05-20 |
| ATE57785T1 (de) | 1990-11-15 |
| DK614386D0 (da) | 1986-12-18 |
| HK176795A (en) | 1995-11-24 |
| DK614386A (da) | 1986-12-18 |
| KR970006831B1 (ko) | 1997-04-30 |
| JPS62502003A (ja) | 1987-08-06 |
| DK166055B (da) | 1993-03-01 |
| WO1986006200A1 (fr) | 1986-10-23 |
| JPH0785344B2 (ja) | 1995-09-13 |
| KR880700408A (ko) | 1988-03-15 |
| DE3514035A1 (de) | 1986-10-23 |
| DE3675150D1 (de) | 1990-11-29 |
| EP0221936B1 (fr) | 1990-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |