Feedforward distortion cancellation circuit
US5051704A · kind A · utility
33Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Feb 6, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2201/3212
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A feedforward distortion cancellation circuit active control of both cancellation loops and a pilot signal and using least means squared circuits in both cancellation loops is disclosed. According to the invention, by using a pilot signal as the reference signal in a least means squared cancellation circuit, the required level of cancellation is reduced and thus it is easier to fabricate the circuit and the circuit is more stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.