Method of reducing d.c. offset
US8175208B2 · kind B2 · utility
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10References
22Claims
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Assignee
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Key dates
| Filing date | Jan 19, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jun 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of reducing d.c. offset comprises comparing the a first variable signal with a second variable signal, producing a control signal in dependence upon the comparison, providing the control signal to a charge pump for generation of a feedback signal, and varying the first signal and/or the second signal in dependence upon the feedback signal thereby reducing any difference between the d.c. level of the first signal and the d.c. level of the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.