Audio and video transmission and receiving system
US5132992A · kind A · utility
937Cited by
38References
58Claims
0Family size
Inventors
Key dates
| Filing date | Jan 7, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 7, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system of distributing video and/or audio information employs digital signal processing to achieve high rates of data compression. The compressed and encoded audio and/or video information is sent over standard telephone, cable or satellite broadcast channels to a receiver specified by a subscriber of the service, preferably in less than real time, for later playback and optional recording on standard audio and/or video tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.