Dynamic DC offset canceling apparatus and dynamic DC offset canceling method
US8031811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2008 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | May 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/061
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The dynamic DC offset canceling apparatus includes: section 104 that detects dynamic DC offset in longest overlapping part sequences from the differences between the sampling values of a first longest overlapping part sequence and the sampling values of a second longest overlapping part sequence, the first longest overlapping part sequence and the second longest overlapping part sequence being overlapping part sequences in a training sequence of the received signal; section 105 that detects dynamic DC offset outside the longest overlapping part sequences from the difference between an average value of sampling values of a received signal which exists in a burst before the first longest overlapping part sequence, and an average value of sampling values of a received signal which exists in a burst after the second longest overlapping part sequence; and section 106 that adaptively subtracts a DC offset value from the received signal based on these results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.