Line driver having variable impedance termination
US6373277B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2001 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Feb 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0276
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A line driver having variable impedance termination includes an impedance, a 1st variable feedback, a 2nd variable feedback, a summing module and a gain module. The 1st and 2nd variable feedbacks provide feedback based on the desired impedance for the particular application. The summing module is operably coupled to sum the 1st variable feedback, the 2nd variable feedback and a signal to produce a resultant signal. The gain module is operably coupled to receive the resultant signal and to amplify the signal to produce a gained signal. The output of the gain module is operably coupled to the impedance wherein the other node of the impedance provides the output of the line driver. To provide the feedback, the 1st variable feedback is operably coupled to the output of the gain module and the summing module and the 2nd variable feedback is operably coupled to the output of the line driver and the summing module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.