Patent · US Active

DRM receiver and demodulation method

US8295372B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Shenzhen STS Microelectronics Co. Ltd · CN

Inventors

Yan Liu · Mountain View, US
Huazhong Yang · Beijing, CN

Key dates

Filing date	Mar 28, 2008
Grant date	Oct 23, 2012
Priority date	—
Expiry date	Aug 21, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/26524
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A Digitial Radio Mondiale (DRM) receiver and demodulation method includes a programmable downsampler and a programmable N-point Fast Fourier Transform (FFT) to recover and demodulate the OFDM symbols in a received DRM-encoded RF signal. The received signal is digitally sampled at a rate operably integer downsampled to achieve a number N samples in the useful portion of the OFDM symbol for input to an N-point FFT, where N equal to a power of two. The downsampling rate and size (N-points) of the FFT depend on the DRM encoding and transmission parameters, notably the robustness mode and spectrum occupancy. This reduces the processing/computational requirements and the design complexity of the DRM receiver.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.