ES452770A1 - Un aparato para leer un portador de registro en el que esta almacenada informacion, por ejemplo, informacion de vidrio yno de audio. - Google Patents
Un aparato para leer un portador de registro en el que esta almacenada informacion, por ejemplo, informacion de vidrio yno de audio.Info
- Publication number
- ES452770A1 ES452770A1 ES452770A ES452770A ES452770A1 ES 452770 A1 ES452770 A1 ES 452770A1 ES 452770 A ES452770 A ES 452770A ES 452770 A ES452770 A ES 452770A ES 452770 A1 ES452770 A1 ES 452770A1
- Authority
- ES
- Spain
- Prior art keywords
- areas
- information
- reading
- radiation
- record carrier
- 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
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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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
- G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
-
- 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
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7401858A NL7401858A (nl) | 1974-02-12 | 1974-02-12 | Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES452770A1 true ES452770A1 (es) | 1977-10-01 |
Family
ID=19820729
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES434588A Expired ES434588A1 (es) | 1974-02-12 | 1975-02-10 | Un dispositivo portador de registro perfeccionado, en el queesta almacenada informacion, por ejemplo, informacion de vi-deo yno de audio. |
| ES452770A Expired ES452770A1 (es) | 1974-02-12 | 1976-10-27 | Un aparato para leer un portador de registro en el que esta almacenada informacion, por ejemplo, informacion de vidrio yno de audio. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES434588A Expired ES434588A1 (es) | 1974-02-12 | 1975-02-10 | Un dispositivo portador de registro perfeccionado, en el queesta almacenada informacion, por ejemplo, informacion de vi-deo yno de audio. |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS50119517A (es) |
| AT (1) | AT338889B (es) |
| AU (1) | AU497709B2 (es) |
| BE (1) | BE825379A (es) |
| CA (1) | CA1047644A (es) |
| CH (1) | CH592350A5 (es) |
| DE (1) | DE2503975A1 (es) |
| DK (1) | DK138567B (es) |
| ES (2) | ES434588A1 (es) |
| FR (1) | FR2260911B1 (es) |
| GB (1) | GB1501141A (es) |
| IT (1) | IT1031581B (es) |
| NL (1) | NL7401858A (es) |
| NO (1) | NO750416L (es) |
| SE (1) | SE410808B (es) |
| ZA (1) | ZA75131B (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7510035A (nl) * | 1975-08-26 | 1977-03-01 | Philips Nv | Registratiedrager met een optisch uitleesbare, langs sporen gerangschikte, informatiestruktuur en inrichting voor het uitlezen daarvan. |
| JPS5363002A (en) * | 1976-11-18 | 1978-06-06 | Sony Corp | Signal recording system and disk type medium for recording signal |
| US4161752A (en) * | 1977-06-28 | 1979-07-17 | International Business Machines Corporation | High density video disk having two pit depths |
| NL7803517A (nl) * | 1978-04-03 | 1979-10-05 | Philips Nv | Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen. |
| JPS57103132A (en) * | 1980-12-16 | 1982-06-26 | Matsushita Electric Ind Co Ltd | Recording information carrier and its recorder and reproducer |
| NL8100098A (nl) * | 1981-01-12 | 1982-08-02 | Philips Nv | Registratiedrager met optisch uitleesbare informatiestruktuur. |
| GB8309447D0 (en) * | 1983-04-07 | 1983-05-11 | Combined Tech Corp Plc | Optical data storage |
| US4623784A (en) * | 1984-12-20 | 1986-11-18 | Drexler Technology Corporation | Laser recording apparatus with off-center lens and error detection |
| DE68923833T2 (de) * | 1988-06-20 | 1996-06-13 | Mitsubishi Electric Corp | Optischer Kopf mit Kippkorrekturservomechanismus. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314052A (en) * | 1963-04-12 | 1967-04-11 | Ibm | Light modulation system |
| FR2014594B1 (es) * | 1968-07-15 | 1974-02-22 | Ibm | |
| JPS5117405B2 (es) * | 1972-05-15 | 1976-06-02 |
-
1974
- 1974-02-12 NL NL7401858A patent/NL7401858A/xx not_active Application Discontinuation
-
1975
- 1975-01-07 ZA ZA00750131A patent/ZA75131B/xx unknown
- 1975-01-31 DE DE19752503975 patent/DE2503975A1/de not_active Withdrawn
- 1975-02-06 CA CA219,532A patent/CA1047644A/en not_active Expired
- 1975-02-07 DK DK45475AA patent/DK138567B/da unknown
- 1975-02-07 GB GB5302/75A patent/GB1501141A/en not_active Expired
- 1975-02-10 NO NO750416A patent/NO750416L/no unknown
- 1975-02-10 AU AU78025/75A patent/AU497709B2/en not_active Expired
- 1975-02-10 IT IT20089/75A patent/IT1031581B/it active
- 1975-02-10 AT AT98275A patent/AT338889B/de not_active IP Right Cessation
- 1975-02-10 CH CH156575A patent/CH592350A5/xx not_active IP Right Cessation
- 1975-02-10 SE SE7501407A patent/SE410808B/xx unknown
- 1975-02-10 BE BE153229A patent/BE825379A/xx unknown
- 1975-02-10 ES ES434588A patent/ES434588A1/es not_active Expired
- 1975-02-12 FR FR7504326A patent/FR2260911B1/fr not_active Expired
- 1975-02-12 JP JP50017757A patent/JPS50119517A/ja active Pending
-
1976
- 1976-10-27 ES ES452770A patent/ES452770A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2503975A1 (de) | 1975-08-14 |
| FR2260911A1 (es) | 1975-09-05 |
| DK138567C (es) | 1979-03-05 |
| SE7501407L (es) | 1975-08-13 |
| CA1047644A (en) | 1979-01-30 |
| DK45475A (es) | 1975-10-06 |
| JPS50119517A (es) | 1975-09-19 |
| DK138567B (da) | 1978-09-25 |
| SE410808B (sv) | 1979-11-05 |
| AT338889B (de) | 1977-09-26 |
| ZA75131B (en) | 1976-08-25 |
| ES434588A1 (es) | 1977-03-16 |
| NL7401858A (nl) | 1975-08-14 |
| ATA98275A (de) | 1977-01-15 |
| AU497709B2 (en) | 1979-01-04 |
| GB1501141A (en) | 1978-02-15 |
| CH592350A5 (es) | 1977-10-31 |
| IT1031581B (it) | 1979-05-10 |
| FR2260911B1 (es) | 1982-03-05 |
| AU7802575A (en) | 1976-08-12 |
| BE825379A (fr) | 1975-08-11 |
| NO750416L (es) | 1975-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES414579A1 (es) | Un aparato para leer un portador de registro plano. | |
| ES468056A1 (es) | Aparato para leer un portador de registro reflectante a la radiacion. | |
| ES441519A1 (es) | Un aparato para leer un portador de registro en forma de disco. | |
| SE7700726L (sv) | Apparat for avlesning av en uppteckningsberare pa vilken information, t ex bild- och/eller ljudinformation, er lagrad | |
| MX147789A (es) | Mejoras en un sistema para procesar senales digitales registra das en una sola pista de una grabadora que tiene un circuito corrector de errores | |
| SE414432B (sv) | Apparat for avlesning av en stralningsreflekterande uppteckningsberare | |
| ES452770A1 (es) | Un aparato para leer un portador de registro en el que esta almacenada informacion, por ejemplo, informacion de vidrio yno de audio. | |
| IT1055651B (it) | Sistema elettronico per la lettura di simboli | |
| JPS5598842A (en) | Position detection system | |
| ATE26035T1 (de) | Geraet zur wiedergabe von platten. | |
| KR840005635A (ko) | 디지탈 변조신호 판독장치에 있어서의 클록 발생용 pll의 록 검출 방식 | |
| JPS5279628A (en) | Information reading processing equipment | |
| JPS56168483A (en) | Pilot signal processing system for video recorder/reproducer | |
| ES434496A1 (es) | Un modulo sensible a una modificacion de un campo magnetico. | |
| JPS5654667A (en) | Identifying device for existence of record information of record disk reproducer | |
| DK490184D0 (da) | Apparat til gengivelse af information fra en optisk aflaeselig registreringsbaerer | |
| SE7513269L (sv) | Anordning for lesning av en stralningsreflekterande uppteckningsberare | |
| ES413062A1 (es) | Un aparato para leer un soporte de registro de informacion. | |
| SE8107438L (sv) | Flygnavigeringsanleggning | |
| DE69406492T2 (de) | System zum Kontrollieren und/oder Aufzeichnen und/oder Anzeigen von verstrichener Zeit und/oder zeitlich aufeinanderfolgender Ereignisse | |
| NL149634B (nl) | Elektronenstraalbuis voor het op een fotogevoelige drager registreren van video informatie en voor het aflezen van geregistreerde video informatie. | |
| ES445563A1 (es) | Un aparato perfeccionado para leer un portador de registro plano | |
| DD130819A1 (de) | Schaltungsanordnung zur stoersignalerkennung beim auswerten magnetischer datentraeger | |
| JPS57181434A (en) | Position detector for head in disc storage device | |
| JPS5376710A (en) | Card detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19980302 |