Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1993-04-26
1994-06-14
Chin, Stephen
Pulse or digital communications
Spread spectrum
Direct sequence
375 45, 375 62, 381 36, 395 2, H04B 166
Patent
active
053217292
ABSTRACT:
In a method of transmitting a signal wherein the signal is partitioned into windows comprised of overlapping blocks with each block containing a partial signal. The partial signal in each block is converted into a digital signal and individually coded with a selected window function f(n). The overlapping areas of the window functions are weighted such that the resultant of the overlapping functions in each block equals one. The coded signals are transmitted. The received signals are reconverted into partial analog signals. The window functions are selected in accordance with frequency changes in the original signal.
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"Coding of Analog Signals with Overlapping Transform and Adaptive Window Functions" Von Berned Edler pp. 1-8 Jul. 1989.
Schroder Ernst
Spille Jens
Chin Stephen
Deutsche Thomson-Brandt GmbH
Ghebrehnsae T.
Herrmann Eric P.
Kurdyla Ronald H.
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