Audio and video transmission and receiving system
US5253275A · kind A · utility
533Cited by
40References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Apr 2, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8355
- 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.