Method and apparatus for transmission of synchronization signals between microprocessors in video system
US4951142A · kind A · utility
3Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Apr 29, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/073
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to couple together vertical-frequency synchronization signals generated by a computer connected to an data transmission system, the synchronization signals are generated by counting the clock pulses. A reference signal is transmitted to the computer or processor; the reference has a frequency which is a whole-number fraction of the desired frequency. Upon receipt in the processor (16) of the reference signal, a counter (19) provided for counting of the clock pulses is preset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.