Digital baseband receiver including a time domain compensation module for suppressing group delay variation distortion incurred due to analog low pass filter deficiencies
US7248649B2 · kind B2 · utility
2Cited by
6References
24Claims
0Family size
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Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Jan 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital baseband (DBB) radio frequency (RF) receiver used for receiving and processing a wireless communication signal. The DBB receiver includes a demodulator, first and second analog low pass filters (LPFs), first and second digital gain control circuits, and a digital time domain compensation module which removes group delay variation distortion, introduced by the first and second analog LPFs, from real and imaginary signal components of the communication signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.