Apparatus for equalizing clipping noise signals of receiver systems and method thereof
US7787557B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for correcting clipping distortion of a receiver system includes: an equalizer which generates a first equalization signal by equalizing a frequency domain clipping signal via a first equalization coefficient correcting a channel distortion, and generates a second equalization signal by equalizing the frequency domain clipping signal via a second equalization coefficient correcting the clipping distortion and the channel distortion; and a signal reconstruction unit which receives the first equalization signal and the second equalization signal from the equalizer, determines a transmission symbol by performing a hard decision with respect to the second equalization, and reconstructs a signal by using an amplitude of the transmission symbol and a phase of the first equalization signal when a level of the amplitude of the transmission symbol is greater than or equal to a reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.