NL7301330A - - Google Patents
Info
- Publication number
- NL7301330A NL7301330A NL7301330A NL7301330A NL7301330A NL 7301330 A NL7301330 A NL 7301330A NL 7301330 A NL7301330 A NL 7301330A NL 7301330 A NL7301330 A NL 7301330A NL 7301330 A NL7301330 A NL 7301330A
- Authority
- NL
- Netherlands
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
- G11B7/24—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
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE111972 | 1972-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7301330A true NL7301330A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-03 |
Family
ID=20257623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7301330A NL7301330A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-02-01 | 1973-01-30 |
Country Status (7)
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7405076L (sv) * | 1974-04-16 | 1975-10-17 | Erik Gerhard Natanel Westberg | Optiskt massdataminne. |
| CA1074005A (en) * | 1975-03-10 | 1980-03-18 | James T. Russell | Recording and playback system |
| US4495609A (en) * | 1975-03-10 | 1985-01-22 | Digital Recording Corporation | Recording and playback system |
| DE2800923C2 (de) | 1977-01-14 | 1984-03-15 | Mobay Chemical Corp., 15205 Pittsburgh, Pa. | Flammfeste aromatische Polycarbonate mit guten mechanischen Eigenschaften und guter Schmelzstabilität |
| US4416001A (en) * | 1980-11-26 | 1983-11-15 | News Log International, Inc. | Method and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier |
| US4692913A (en) * | 1980-11-26 | 1987-09-08 | News Log International, Inc. | Method and apparatus for reading a data record carrier |
| US4622462A (en) * | 1981-06-11 | 1986-11-11 | Mts Vektronics Corporation | Method and apparatus for three-dimensional scanning |
| US4475035A (en) * | 1981-06-11 | 1984-10-02 | Vektronics, Inc. | Method and apparatus for scanning |
| JPS57204509A (en) * | 1981-06-11 | 1982-12-15 | Bekutoronikusu Inc | Scanning method and apparatus |
| US4571713A (en) * | 1981-08-06 | 1986-02-18 | News Log International, Inc. | Digital data record |
| US4519054A (en) * | 1982-06-03 | 1985-05-21 | News Log International, Inc. | Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby |
| US4532616A (en) * | 1982-06-03 | 1985-07-30 | News Log International, Inc. | Method for optically encoding digital data on a substrate and the data record carrier formed thereby |
| US4570252A (en) * | 1982-08-09 | 1986-02-11 | Drexler Technology Corporation | Optical data retrieval system using multi-spectral light sources |
| US4603414A (en) * | 1983-02-14 | 1986-07-29 | News Log International | Apparatus for making a data record carrier |
| US4730297A (en) * | 1984-09-04 | 1988-03-08 | Matsushita Electric Industrial Co., Ltd. | Retardation compensating light beam guiding system in an optical storage medium drive apparatus |
| DE3676395D1 (de) * | 1985-08-27 | 1991-02-07 | Siemens Ag | Positioniereinrichtung fuer einen optischen datenspeicher. |
| US4849643A (en) * | 1987-09-18 | 1989-07-18 | Eaton Leonard Technologies | Optical probe with overlapping detection fields |
| US5008555A (en) * | 1988-04-08 | 1991-04-16 | Eaton Leonard Technologies, Inc. | Optical probe with overlapping detection fields |
| US5194721A (en) * | 1989-11-24 | 1993-03-16 | Optical Recording Corporation | Optical scanner |
| US5184002A (en) * | 1989-11-24 | 1993-02-02 | Optical Recording Corporation | Optical scanner |
| AU9591898A (en) | 1997-09-30 | 1999-04-23 | Jerry W. Bohn | Non-mechanical recording and retrieval apparatus |
| US20050116181A1 (en) * | 2003-10-29 | 2005-06-02 | Jerry Bohn | Non-mechanical recording and retrieval apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2938126A (en) * | 1955-12-16 | 1960-05-24 | Toledo Scale Corp | Indicator scanning device |
| US3183495A (en) * | 1956-08-31 | 1965-05-11 | Sperry Rand Corp | Random access magnetic tape memory systems |
| US3183494A (en) * | 1956-08-31 | 1965-05-11 | Sperry Rand Corp | Random access memory systems |
| US3391247A (en) * | 1964-01-03 | 1968-07-02 | Minnesota Mining & Mfg | Television signal recording with sampled audio recorded during horizontal intervals |
| DE1572427A1 (de) * | 1967-05-06 | 1970-02-12 | Dual Gebrueder Steidinger | Lichtelektrischer Tonabnehmer |
| US3696344A (en) * | 1970-02-19 | 1972-10-03 | Energy Conversion Devices Inc | Optical mass memory employing amorphous thin films |
| US3720924A (en) * | 1972-03-09 | 1973-03-13 | Honeywell Inc | Optical mass memory |
| US3774172A (en) * | 1972-03-23 | 1973-11-20 | D Silverman | Random access multiple disc optical information storage system |
-
1973
- 1973-01-29 DE DE2304182A patent/DE2304182A1/de active Pending
- 1973-01-30 US US327991A patent/US3898629A/en not_active Expired - Lifetime
- 1973-01-30 NL NL7301330A patent/NL7301330A/xx not_active Application Discontinuation
- 1973-01-31 IT IT67191/73A patent/IT977712B/it active
- 1973-01-31 JP JP48012777A patent/JPS4888944A/ja active Pending
- 1973-01-31 GB GB495473A patent/GB1405331A/en not_active Expired
- 1973-02-01 FR FR7303547A patent/FR2170132B1/fr not_active Expired
-
1981
- 1981-04-16 JP JP1981055691U patent/JPS56167035U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3898629A (en) | 1975-08-05 |
| JPS56167035U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-12-10 |
| DE2304182A1 (de) | 1973-08-09 |
| FR2170132B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-12-01 |
| IT977712B (it) | 1974-09-20 |
| FR2170132A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-09-14 |
| JPS4888944A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-11-21 |
| GB1405331A (en) | 1975-09-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |