Multiplex communications – Generalized orthogonal or special mathematical techniques
Reissue Patent
2011-03-22
2011-03-22
Harper, Kevin C (Department: 2462)
Multiplex communications
Generalized orthogonal or special mathematical techniques
C370S343000, C370S465000, C370S480000
Reissue Patent
active
RE042236
ABSTRACT:
Systems and methods for bidirectional communication are provided. In one embodiment, a multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system comprises: a plurality of remote units, a host unit; wherein the host sends an adjustment signal to a remote instructing the remote to adjust the timing of transmissions from the remote to improve orthogonality of the OFDM waveform received at the host, wherein the host sends an adjustment signal to a remote instructing the remote to adjust the frequency of transmissions from the remote to improve orthogonality of the OFDM waveform received at the host, wherein payload data is transmitted between a remote and the host over a first orthogonal tone within the OFDM communication system during a first time interval, and wherein control data is transmitted between a remote and the host over the first orthogonal tone within the OFDM communication system during a second time interval.
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pa
Anderson Brian D.
Geile Michael J.
Herrmann James J.
Wadman Mark S.
ADC Telecommunications Inc.
Fogg & Powers LLC
Harper Kevin C
LandOfFree
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