Communication device and noise cancellation method
US8169349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A communication device and the method thereof are disclosed in embodiments of the present invention. The communication device includes a level determining module, an digital to analog converter and an analog to digital converter. The level determining module determines a plurality of voltage levels and voltage intensity thereof according to an estimating signal to generate a first digital signal. The digital to analog converter converts the first digital signal into a pulse shaped analog signal according to the plurality of voltage levels and voltage intensity thereof. The analog to digital converter converts a first difference signal into a second digital signal wherein the first difference signal equals the result of subtracting the pulse shaped analog signal from a receiving signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.