De-emphasis circuit for a voltage mode driver used to communicate via a differential communication link
US7714615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2008 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Apr 12, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0286
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A circuit for de-emphasizing information transmitted via a differential communication link includes a voltage mode differential circuit and a bi-directional current source circuit. The voltage mode differential circuit includes a first and second output terminal. The voltage mode differential circuit provides a first voltage via the first output terminal and second voltage via the second output terminal in response to a differential input voltage. The bi-directional current source circuit is operatively coupled between the first and second terminals. The bi-directional current source circuit selectively provides current in a first and second direction between the first and second terminals based on the first and second voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.