System and method for processing digital visual interface communication data signals and display data channel communication signals over a transmission line
US7230989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Apr 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital communication system for transmitting and receiving Digital Visual Interface (DVI) communication data signals and Display Data Channel (DDC) communication signals over a transmission line comprises an open-loop equalizer circuit and a DDC extension circuit. The open-loop equalizer circuit is operable to receive DVI communication signals transmitted over the transmission line and output equalized DVI communication data signals. The DDC extension circuit is operable to inject a boost current at the receive end of the transmission line during a positive transition in the DDC communication signal, and clamp the receive end of the transmission line during a negative transition of the DDC communication signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.