Baseline wander compensation circuit and method
US6211716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/064
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus of compensating for offset in a received signal generated from a forward path stage, includes a first peak detector for receiving a first signal from the forward path stage and capable of detecting a peak of the first signal; a second peak detector for receiving a second signal from the forward path stage and capable of detecting a peak of the second signal; a differential amplifier coupled to the first peak detector and the second peak detector and capable of generating an offset control signal; and a compensation stage coupled to the differential amplifier and capable of compensating for offset in the received signal in response to the offset control signal. A method of compensating for offset in a received signal includes detecting a level of a first signal from a forward path stage; detecting a level of a second signal from the forward path stage; and generating an offset control signal to reduce an offset in the received signal in response to the level difference of the first signal and the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.