Signal line drivers
US6265893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1998 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Sep 29, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0278
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Signal driving circuitry includes first and second drivers that are coupled to different points on a transmission line having an impedance. The first driver includes a transistor and a resistance that matches the transmission line impedance. The transistor is active to drive the transmission line to a specified voltage when the first and second drivers are inactive. In one configuration, the first and second drivers include CMOS drivers. In another configuration, the first driver includes a CMOS driver while the second driver includes a GTL-type driver. Termination devices in the first and second drivers may be alternately switched in and out of the signal driving circuitry depending on which driver is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.