Pulse or digital communications – Repeaters – Testing
Patent
1995-06-07
1999-11-16
Tse, Young T.
Pulse or digital communications
Repeaters
Testing
375200, H04B 169
Patent
active
059870583
ABSTRACT:
A wireless alarm system using spread spectrum transmitters, fast frequency shift keying, spread spectrum receivers and computer with a display. The spread spectrum transmitter includes an oscillator coupled to a microprocessor with chip code generation means, preamble register, address register and data register. The spread spectrum receiver acquires synchronization of the spread spectrum signal using a microprocessor coupled to the quieting, signal strength or baseband output of the receiver, with a two step algorithm. The steps comprise achieving a coarse lock and a fine lock to the spread spectrum signal.
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Arthur James D.
Rouquette Robert E.
Sanderford H. Britton
Axonn Corporation
Tse Young T.
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