FR2246931B1 - - Google Patents
Info
- Publication number
- FR2246931B1 FR2246931B1 FR7433059A FR7433059A FR2246931B1 FR 2246931 B1 FR2246931 B1 FR 2246931B1 FR 7433059 A FR7433059 A FR 7433059A FR 7433059 A FR7433059 A FR 7433059A FR 2246931 B1 FR2246931 B1 FR 2246931B1
- Authority
- FR
- France
- 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
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/402,634 US4358802A (en) | 1973-10-01 | 1973-10-01 | Fluid cushion turntable for video disc player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2246931A1 FR2246931A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-05-02 |
| FR2246931B1 true FR2246931B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-11-24 |
Family
ID=23592710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7433059A Expired FR2246931B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-10-01 | 1974-10-01 |
Country Status (8)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54151404A (en) * | 1978-03-27 | 1979-11-28 | Mca Disco Vision | Video disk player |
| US4591938A (en) * | 1983-01-20 | 1986-05-27 | Bell & Howell Company | Method and apparatus for removal of dust from an information carrier during recording and playback |
| US5150338A (en) * | 1989-08-10 | 1992-09-22 | Hewlett-Packard Company | Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider |
| US5590102A (en) * | 1995-01-12 | 1996-12-31 | Discovision Associates | Recording informatioin on an optical disc without using pre-manufactured tracks |
| US5978329A (en) * | 1995-06-07 | 1999-11-02 | Discovision Associates | Technique for closed loop servo operation in optical disc tracking control |
| KR100316135B1 (ko) * | 1995-12-06 | 2002-04-24 | 데니스 피셸 | 빔 포커스 제어 장치 및 방법 |
| US5689485A (en) | 1996-04-01 | 1997-11-18 | Discovision Associates | Tracking control apparatus and method |
| CN102395319B (zh) * | 2009-04-16 | 2014-05-14 | 株式会社日立医疗器械 | X射线ct装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153241A (en) * | 1961-08-31 | 1964-10-13 | Lab For Electronics Inc | Magnetic recorder |
| JPS4919211B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1968-02-29 | 1974-05-16 | ||
| US3688285A (en) * | 1970-02-16 | 1972-08-29 | Ibm | Flexible disk magnetic recording device |
| US3729720A (en) * | 1971-06-18 | 1973-04-24 | Ibm | Turntable for rigidly mounting thin flexible magnetic discs |
-
1973
- 1973-10-01 US US05/402,634 patent/US4358802A/en not_active Expired - Lifetime
-
1974
- 1974-09-03 NL NL7411708A patent/NL7411708A/xx unknown
- 1974-09-09 DE DE2443107A patent/DE2443107A1/de active Pending
- 1974-09-27 GB GB42170/74A patent/GB1482268A/en not_active Expired
- 1974-09-30 IT IT53263/74A patent/IT1019431B/it active
- 1974-09-30 CA CA210,352A patent/CA1031271A/en not_active Expired
- 1974-09-30 JP JP11177974A patent/JPS5340522B2/ja not_active Expired
- 1974-10-01 FR FR7433059A patent/FR2246931B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1019431B (it) | 1977-11-10 |
| JPS5062405A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-05-28 |
| FR2246931A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-05-02 |
| CA1031271A (en) | 1978-05-16 |
| DE2443107A1 (de) | 1975-04-10 |
| NL7411708A (nl) | 1975-04-03 |
| GB1482268A (en) | 1977-08-10 |
| US4358802A (en) | 1982-11-09 |
| JPS5340522B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-10-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |