Multiplex communications – Wide area network – Packet switching
Patent
1993-03-08
1994-06-21
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
364572, 364576, 36472401, 3647241, 36472413, 375102, 375103, 455307, H04J 102
Patent
active
053233913
ABSTRACT:
A method and apparatus are provided for use in a multi-channel digital transmitter and receiver. A filtering process is accomplished by conditioning portions of a digitized signal during digital signal processing by integrating, taking the difference of, and multiplying portions of the digitized signal. The filtering process may be used in conjunction with a receiving process to generate a digitized channel signal by conditioning the digitized signal and subsequently Fourier transforming the conditioned portions of the digitized signal. Alternatively, the filtering process may be used in conjunction with a transmitting process by inverse Fourier transforming a plurality of digitized information signals to be transmitted to generating a composite digitized signal and subsequently conditioning the composite digitized signal.
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Blum Russell W.
Dempster Shawn B.
Motorola Inc.
Olms Douglas W.
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