Telecommunication system with video and audio frames
US4816905A · kind A · utility
227Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 30, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00098
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interactive system transfers video and audio information from a central facility to terminals by means of addressed television frames. Each audio frame includes information representing a single channel of time compressed audio. The terminals store correctly addressed frames. Video frames are repeatedly replayed to provide series of still-frame images. The audio frame is used to generate a normal speed audio output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.