Reciprocal mixing noise cancellation system
US8868018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Feb 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/1063
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for cancellation of a reciprocal-mixing noise may comprise a down-converter mixer that may be configured to down convert a radio-frequency (RF) signal and to generate a baseband signal. The RF signal may include a desired signal and a blocker signal. A first signal path may be configured to receive the baseband signal and to generate a first signal. A second signal path may be configured to receive the baseband signal and to generate a second signal. A subtraction module may be configured to subtract the second signal from the first signal and to generate an output signal. The second signal may comprise the reciprocal-mixing noise, and the output signal may comprise the desired signal substantially free from the reciprocal-mixing noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.