Air cushion-optical data read head
US4710912A · kind A · utility
5Cited by
5References
4Claims
0Family size
Inventors
Key dates
| Filing date | Jun 2, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Jun 2, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An air cushion-optical data read head that includes an optical pick-up system for reading data stored on the walls of an engraved V-groove disc or record, air means for causing the read head to hover above the surface of the record, and air jet means for guiding the head about the V-groove of the record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.