Frame sync signal for digital transmission system
US5619269A · kind A · utility
130Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An ATV signal includes a field sync reference having a relatively long pseudo-random number symbol sequence followed by three relatively short pseudo-random number symbol sequences, with the middle of the three short pseudo-random number symbol sequences having inverted polarity in alternate fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.