JPS645387B2 - - Google Patents
Info
- Publication number
- JPS645387B2 JPS645387B2 JP56046593A JP4659381A JPS645387B2 JP S645387 B2 JPS645387 B2 JP S645387B2 JP 56046593 A JP56046593 A JP 56046593A JP 4659381 A JP4659381 A JP 4659381A JP S645387 B2 JPS645387 B2 JP S645387B2
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- control
- control signal
- signal
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 2
- 241001422033 Thestylus Species 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
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
- G11B7/0946—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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8001974A NL8001974A (nl) | 1980-04-03 | 1980-04-03 | Spoorvolginrichting. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56156973A JPS56156973A (en) | 1981-12-03 |
| JPS645387B2 true JPS645387B2 (en, 2012) | 1989-01-30 |
Family
ID=19835109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4659381A Granted JPS56156973A (en) | 1980-04-03 | 1981-03-31 | Tracking device |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4359635A (en, 2012) |
| JP (1) | JPS56156973A (en, 2012) |
| AT (1) | AT370900B (en, 2012) |
| AU (1) | AU536041B2 (en, 2012) |
| CA (1) | CA1169148A (en, 2012) |
| DE (1) | DE3111714A1 (en, 2012) |
| ES (1) | ES8202648A1 (en, 2012) |
| FR (1) | FR2480016A1 (en, 2012) |
| GB (1) | GB2073452B (en, 2012) |
| IT (1) | IT1137118B (en, 2012) |
| NL (1) | NL8001974A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02133882U (en, 2012) * | 1989-04-10 | 1990-11-07 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6215864Y2 (en, 2012) * | 1980-08-04 | 1987-04-22 | ||
| JPS589227A (ja) * | 1981-07-07 | 1983-01-19 | Mitsubishi Electric Corp | 光学的サ−ボ装置 |
| JPS5810275U (ja) * | 1981-07-15 | 1983-01-22 | パイオニア株式会社 | 情報記録領域の検出装置 |
| JPS5841447A (ja) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | 光スポット制御信号検出方法 |
| NL8200208A (nl) * | 1982-01-21 | 1983-08-16 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige registratiedrager. |
| JPS58143472A (ja) * | 1982-02-22 | 1983-08-26 | Hitachi Ltd | 記録情報再生装置のトラツキングサ−ボ制御装置 |
| JPS58169350A (ja) * | 1982-03-31 | 1983-10-05 | Hitachi Ltd | 光学的情報記録再生装置 |
| AU575332B2 (en) * | 1983-07-29 | 1988-07-28 | Sony Corporation | Optical disk pick-up |
| JPS60154358A (ja) * | 1984-01-20 | 1985-08-14 | Pioneer Electronic Corp | 記録情報再生装置 |
| JPH07101532B2 (ja) * | 1986-03-20 | 1995-11-01 | ソニー株式会社 | トラツキング制御装置 |
| NL8602911A (nl) * | 1986-11-17 | 1988-06-16 | Philips Nv | Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager. |
| NL8802435A (nl) * | 1988-10-05 | 1990-05-01 | Philips Nv | Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting. |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL173343C (nl) * | 1972-03-29 | 1984-01-02 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige registratiedrager met in optische vorm gecodeerde beeld-en/of geluidssignalen. |
| JPS49129511A (en, 2012) * | 1973-04-12 | 1974-12-11 | ||
| 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 |
| NL7315419A (nl) * | 1973-11-10 | 1975-05-13 | Philips Nv | Inrichting voor het uitlezen van een schijfvor- mige registratiedrager. |
| GB1503972A (en) * | 1975-07-24 | 1978-03-15 | Ibm | Data storage apparatus |
| JPS52145005A (en) * | 1976-05-27 | 1977-12-02 | Mitsubishi Electric Corp | Highly densed recording signals reproduction device |
| JPS52145006A (en) * | 1976-05-27 | 1977-12-02 | Mitsubishi Electric Corp | Highly densed recording signals reproduction device |
| JPS54125010A (en) * | 1978-03-22 | 1979-09-28 | Mitsubishi Electric Corp | Magnetic disc apparatus |
| JPS6034144Y2 (ja) * | 1978-07-12 | 1985-10-11 | 富士通株式会社 | 磁気ヘツド位置決め装置 |
| JPS5680878A (en) * | 1979-12-05 | 1981-07-02 | Nec Corp | Magnetic bubble storage device |
-
1980
- 1980-04-03 NL NL8001974A patent/NL8001974A/nl not_active Application Discontinuation
- 1980-09-11 US US06/186,076 patent/US4359635A/en not_active Expired - Lifetime
-
1981
- 1981-03-25 DE DE19813111714 patent/DE3111714A1/de active Granted
- 1981-03-26 CA CA000373912A patent/CA1169148A/en not_active Expired
- 1981-03-30 GB GB8109824A patent/GB2073452B/en not_active Expired
- 1981-03-31 IT IT20850/81A patent/IT1137118B/it active
- 1981-03-31 JP JP4659381A patent/JPS56156973A/ja active Granted
- 1981-04-01 FR FR8106532A patent/FR2480016A1/fr active Granted
- 1981-04-01 AT AT0152181A patent/AT370900B/de not_active IP Right Cessation
- 1981-04-01 AU AU68981/81A patent/AU536041B2/en not_active Ceased
- 1981-04-01 ES ES500964A patent/ES8202648A1/es not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02133882U (en, 2012) * | 1989-04-10 | 1990-11-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56156973A (en) | 1981-12-03 |
| DE3111714C2 (en, 2012) | 1990-08-02 |
| DE3111714A1 (de) | 1982-02-11 |
| FR2480016B1 (en, 2012) | 1985-03-01 |
| GB2073452B (en) | 1984-02-01 |
| ATA152181A (de) | 1982-09-15 |
| IT1137118B (it) | 1986-09-03 |
| CA1169148A (en) | 1984-06-12 |
| NL8001974A (nl) | 1981-11-02 |
| IT8120850A0 (it) | 1981-03-31 |
| US4359635A (en) | 1982-11-16 |
| GB2073452A (en) | 1981-10-14 |
| AU6898181A (en) | 1981-10-08 |
| AT370900B (de) | 1983-05-10 |
| AU536041B2 (en) | 1984-04-12 |
| ES500964A0 (es) | 1982-02-01 |
| ES8202648A1 (es) | 1982-02-01 |
| FR2480016A1 (fr) | 1981-10-09 |
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