Receiver with signal offset estimator and symbol synchronizing generator
US7346114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Jul 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2662
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A receiver for orthogonal frequency division multiplexing signals, including art A/D converter for converting receiver analog signals to a digital signal data stream, wherein the digital signal data stream includes symbols separated by guard segments. The receiver also includes an I/Q demodulator for producing a first set of complex I and Q components from the digital signal data stream and a guard segment length detector using the first set of I and Q components. It further includes an extractor for identifying and removing the guard segments of the detected length from the digital signal data stream and an FFT demodulator for demodulating the symbols of the digital signal data stream to produce second sets of complex I and Q components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.