Optical sound-reproducing apparatus
US4570250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1983 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | May 18, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/24082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for generating audible information from a sound track printed on paper by conventional printing techniques, the sound track consisting of a multiplicity of closely-spaced parallel sound track segments which are curved in a manual scanning direction and oriented generally transverse the manual scanning direction. Also provided is an optical scanner adapted to be manually moved along the sound track in the manual scanning direction, the scanner including means for automatically and continuously sequentially scanning the segments longitudinally to produce electrical signals representative of sound information contained in the sound track, and means for converting the electrical signals into audible sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.