Optical tape recorder using linear scanning
US4567585A · kind A · utility
62Cited by
3References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0925
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical tape recorder is disclosed using the linear motion of a slide to record data across a slowly moving tape made of light sensitive material. Data is recorded on the tape by modulating the output of a laser in accordance with the data and focussing the modulated light onto the tape using a lens mounted on a slide. The position of the slide is measured using a linear optical encoder and this information is used to place the data accurately on the tape. The slide is connected to a spring and driven electromagnetically at its resonant frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.