Wireless alarm system

Details Wireless alarm system Wireless alarm system

1988-11-02

1990-12-11

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

H04K 100

Patent

active

049775774

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.

REFERENCES:
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4225935 (1980-09-01), Zscheile, Jr. et al.
patent: 4241447 (1980-12-01), Epstein
patent: 4313211 (1982-01-01), Leland
patent: 4317204 (1982-02-01), Gordy et al.
patent: 4351064 (1982-09-01), Ewanus
patent: 4360801 (1982-11-01), Duhane
patent: 4361890 (1982-11-01), Green, Jr. et al.
patent: 4361891 (1982-11-01), Lobenstein et al.
patent: 4387465 (1983-06-01), Becker
patent: 4392220 (1983-07-01), Hirosaki et al.
patent: 4400790 (1983-08-01), Chambers et al.
patent: 4418393 (1983-11-01), Zscheile, Jr.
patent: 4425661 (1984-01-01), Moses et al.
patent: 4435821 (1984-03-01), Ito et al.
patent: 4455651 (1984-06-01), Baran
patent: 4468784 (1984-08-01), Jagnow et al.
patent: 4470145 (1984-09-01), Williams
patent: 4472814 (1984-09-01), Gutleber
patent: 4475215 (1984-10-01), Gutleber
patent: 4484335 (1984-10-01), Mosley et al.
patent: 4511887 (1985-04-01), Fiore
patent: 4530008 (1985-07-01), McVoy
patent: 4550312 (1985-10-01), Galloway et al.
patent: 4583090 (1986-04-01), Eden et al.
patent: 4594580 (1986-06-01), Nelson
patent: 4661804 (1887-04-01), Abel
patent: 4728935 (1988-03-01), Pantus et al.
patent: 4734680 (1988-03-01), Gehman et al.

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