Interference canceller
US6714775B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/123
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An interference canceller is described, wherein the interference canceller includes an input receiving an input composite signal, a reference circuit, and a cancellation circuit. The interference canceller derives its own reference signal. Internal derivation of the reference signal is accomplished by suppressing the desired signal included within a sampled quantum of a composite signal. The resultant reference signal is a likeness of the interference signal; containing substantially only the interference signal. The internally produced reference signal is amplitude and phase adjusted in a time-continuous fashion and summed with the composite signal in the cancellation circuit. The output of the cancellation circuit contains the desired signal and a substantially suppressed interference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.