JPS6313262B2 - - Google Patents
Info
- Publication number
- JPS6313262B2 JPS6313262B2 JP54031484A JP3148479A JPS6313262B2 JP S6313262 B2 JPS6313262 B2 JP S6313262B2 JP 54031484 A JP54031484 A JP 54031484A JP 3148479 A JP3148479 A JP 3148479A JP S6313262 B2 JPS6313262 B2 JP S6313262B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- track
- address
- signal
- linear motor
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 20
- 230000009191 jumping Effects 0.000 claims description 12
- 238000012790 confirmation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000001960 triggered effect 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
- G11B7/085—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
- G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
-
- 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
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3148379A JPS55125541A (en) | 1979-03-16 | 1979-03-16 | Retrieval unit |
JP3148479A JPS55125542A (en) | 1979-03-16 | 1979-03-16 | Optical reproduction unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3148379A JPS55125541A (en) | 1979-03-16 | 1979-03-16 | Retrieval unit |
JP3148479A JPS55125542A (en) | 1979-03-16 | 1979-03-16 | Optical reproduction unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55125542A JPS55125542A (en) | 1980-09-27 |
JPS6313262B2 true JPS6313262B2 (sv) | 1988-03-24 |
Family
ID=26369957
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3148379A Pending JPS55125541A (en) | 1979-03-16 | 1979-03-16 | Retrieval unit |
JP3148479A Granted JPS55125542A (en) | 1979-03-16 | 1979-03-16 | Optical reproduction unit |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3148379A Pending JPS55125541A (en) | 1979-03-16 | 1979-03-16 | Retrieval unit |
Country Status (1)
Country | Link |
---|---|
JP (2) | JPS55125541A (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57181436A (en) * | 1981-05-01 | 1982-11-08 | Toshiba Corp | Optical disc device |
JPS58128030A (ja) * | 1982-01-24 | 1983-07-30 | Sony Corp | デイスク再生装置 |
US4435797A (en) * | 1982-02-17 | 1984-03-06 | Burroughs Corporation | Optical memory system having track following and seeking capabilities |
US4432082A (en) * | 1982-02-17 | 1984-02-14 | Burroughs Corporation | Optical memory system having a long seek capability |
JPS5952473A (ja) * | 1982-09-17 | 1984-03-27 | Matsushita Electric Ind Co Ltd | 情報記録再生装置 |
JPS59117740A (ja) * | 1982-12-24 | 1984-07-07 | Hitachi Ltd | ビデオデイスクプレ−ヤ |
JPH0782718B2 (ja) * | 1984-04-27 | 1995-09-06 | パイオニア株式会社 | ディスクプレーヤにおける情報読取復帰方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5224027B1 (sv) * | 1971-01-29 | 1977-06-28 |
-
1979
- 1979-03-16 JP JP3148379A patent/JPS55125541A/ja active Pending
- 1979-03-16 JP JP3148479A patent/JPS55125542A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS55125541A (en) | 1980-09-27 |
JPS55125542A (en) | 1980-09-27 |
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