RAM-based fast fourier transform unit for wireless...

Details RAM-based fast fourier transform unit for wireless... RAM-based fast fourier transform unit for wireless...

2002-08-30

2009-06-30

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07555512

ABSTRACT:
A wireless communication technique enables fast Fourier transforms (FFTs) and inverse fast Fourier transforms (IFFTs) to be performed with reduced latency and reduced memory requirements. In particular, an FFT/IFFT unit receives input data representative of a communication symbol. The FFT/IFFT unit applies an FFT operation to the input data to generate intermediate data. The FFT/IFFT unit stores the intermediate data in a random access memory (RAM). The intermediate data stored in the RAM may override data used as input to the FFT operation. The FFT/IFFT unit selectively addresses the RAM to retrieve the intermediate data in a desired output order. For example, the FFT/IFFT unit may output the intermediate data in the same sequential order as the FFT/IFFT unit received the input data.

REFERENCES:
patent: 4117541 (1978-09-01), Ali
patent: 5163017 (1992-11-01), Wong et al.
patent: 5293330 (1994-03-01), Sayegh
patent: 5313413 (1994-05-01), Bhatia et al.
patent: 5602835 (1997-02-01), Seki et al.
patent: 5808925 (1998-09-01), Ito et al.
patent: 5848097 (1998-12-01), Carney et al.
patent: 5890098 (1999-03-01), Kozaki et al.
patent: 5946293 (1999-08-01), Beale et al.
patent: 6098088 (2000-08-01), He et al.
patent: 6247034 (2001-06-01), Nakai et al.
patent: 6366936 (2002-04-01), Lee et al.
patent: 6430149 (2002-08-01), Kobayashi
patent: 6434583 (2002-08-01), Dapper et al.
patent: 2002/0178194 (2002-11-01), Aizenberg et al.

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