DK166054C - Automatisk korrektionssystem for servokredsen i et apparat med optisk aftastning af en roterende informationsbaerer - Google Patents
Automatisk korrektionssystem for servokredsen i et apparat med optisk aftastning af en roterende informationsbaererInfo
- Publication number
- DK166054C DK166054C DK614286A DK614286A DK166054C DK 166054 C DK166054 C DK 166054C DK 614286 A DK614286 A DK 614286A DK 614286 A DK614286 A DK 614286A DK 166054 C DK166054 C DK 166054C
- Authority
- DK
- Denmark
- Prior art keywords
- optical detection
- information carrier
- correction system
- automatic correction
- service circuit
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
- G11B7/0948—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
-
- 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
- G11B7/0946—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
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853514034 DE3514034A1 (de) | 1985-04-18 | 1985-04-18 | Automatisches korrektursystem fuer den servokreis eines geraetes mit optischer abtastung eines rotierenden informationstraegers |
| DE3514034 | 1985-04-18 | ||
| PCT/EP1986/000224 WO1986006201A1 (en) | 1985-04-18 | 1986-04-17 | Automatic correction system for the servo-circuit of a device with optical scanning of a rotating information support |
| EP8600224 | 1986-04-17 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK614286D0 DK614286D0 (da) | 1986-12-18 |
| DK614286A DK614286A (da) | 1986-12-18 |
| DK166054B DK166054B (da) | 1993-03-01 |
| DK166054C true DK166054C (da) | 1993-07-12 |
Family
ID=6268492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK614286A DK166054C (da) | 1985-04-18 | 1986-12-18 | Automatisk korrektionssystem for servokredsen i et apparat med optisk aftastning af en roterende informationsbaerer |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0220251B1 (da) |
| JP (1) | JPH0792989B2 (da) |
| KR (1) | KR940002962B1 (da) |
| DE (2) | DE3514034A1 (da) |
| DK (1) | DK166054C (da) |
| HK (1) | HK148494A (da) |
| SG (1) | SG8892G (da) |
| WO (1) | WO1986006201A1 (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02230515A (ja) * | 1989-03-03 | 1990-09-12 | Sony Corp | 光学式記録再生装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55113172A (en) * | 1979-02-19 | 1980-09-01 | Matsushita Electric Ind Co Ltd | Detection system for abnormal reproduction state |
| 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 DE19853514034 patent/DE3514034A1/de not_active Withdrawn
-
1986
- 1986-04-17 EP EP86902819A patent/EP0220251B1/de not_active Expired - Lifetime
- 1986-04-17 DE DE8686902819T patent/DE3674534D1/de not_active Expired - Lifetime
- 1986-04-17 JP JP61502607A patent/JPH0792989B2/ja not_active Expired - Lifetime
- 1986-04-17 WO PCT/EP1986/000224 patent/WO1986006201A1/de active IP Right Grant
- 1986-12-18 DK DK614286A patent/DK166054C/da not_active IP Right Cessation
- 1986-12-18 KR KR8670904A patent/KR940002962B1/ko not_active IP Right Cessation
-
1992
- 1992-01-31 SG SG88/92A patent/SG8892G/en unknown
-
1994
- 1994-12-30 HK HK148494A patent/HK148494A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DK166054B (da) | 1993-03-01 |
| KR880700407A (ko) | 1988-03-15 |
| HK148494A (en) | 1995-01-06 |
| DK614286D0 (da) | 1986-12-18 |
| JPS62502002A (ja) | 1987-08-06 |
| WO1986006201A1 (en) | 1986-10-23 |
| JPH0792989B2 (ja) | 1995-10-09 |
| EP0220251A1 (de) | 1987-05-06 |
| DK614286A (da) | 1986-12-18 |
| DE3674534D1 (de) | 1990-10-31 |
| KR940002962B1 (en) | 1994-04-09 |
| DE3514034A1 (de) | 1986-10-23 |
| SG8892G (en) | 1992-03-20 |
| EP0220251B1 (de) | 1990-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |