Pulse or digital communications – Repeaters – Testing
Patent
1996-03-15
1998-10-13
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
375200, 375202, 375308, 370206, 370209, 455420, 455522, H04B 1500
Patent
active
058223622
ABSTRACT:
A system which phase modulates a carrier to produce a carrier signal which transitions in phase between predetermined phase states as a function of the data, wherein a rate at which the carrier signal changes phase during a transition between the predetermined phase states varies substantially sinusoidally. The phase modulation provides a constant amplitude modulated waveform having low side lobes. Such modulation method preserves the high noise tolerance capabilities associated with FH systems and the high data throughput capabilities of DS systems.
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Aironet Wireless Communications, Inc.
Chin Stephen
Liu Shuwang
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