Method and apparatus for parallel in serial out transmission
US6563485B2 · kind B2 · utility
1Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Apr 30, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing serial transmission of a parallel input is accomplished by a parallel input serial output transmitter that includes a shift register operably coupled to receive a parallel input and to provide data serially to a gating circuit. The gating circuit, based on the state of the data it receives, generates a drive signal which causes a switching circuit to route current from first and second current sources to a third current source over different paths to produce a serial output. A bias circuit is coupled to the switching circuit to bias the serial output to a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.