Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-08-14
1998-12-08
Ghebretinsae, Temesghen
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
375355, H04L 2706
Patent
active
058481079
ABSTRACT:
In OFDM transmission use of an FFT is made for demodulating all carriers simultaneously. In order to prevent adverse influence of intersymbol interference due to multi-path propagation, it is known to determine the impulse response of the transmission medium and to adapt the FFT window accordingly. The center of gravity of the impulse response is now used rather than the first significant value of the impulse response. This has the advantage that the influence of deep fading has less influence on the selection of the FFT window, resulting in an improved performance.
REFERENCES:
patent: 5345440 (1994-09-01), Gledhill et al.
patent: 5450456 (1995-09-01), Mueller
patent: 5537419 (1996-07-01), Parr et al.
Ghebretinsae Temesghen
Goodman Edward W.
U. S. Philips Corporation
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