Television compressed audio
US4429332A · kind A · utility
27Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1981 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | May 18, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ten second interval of audio frequency information is sampled, digitized, and stored in a memory. It is then read out of the memory very many times faster, say 400 times faster, converted to analog, combined with television synchronizing signals and transmitted as a signal television frame. That signal is received, converted from analog to digital, stored at high speed, and then read out at an audio frequency rate, to thereby recover the original ten seconds of audio frequency information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.