Carrier locating system

Details Carrier locating system Carrier locating system

1992-11-09

1995-03-28

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379201, 379211, 34082554, H04M 1100

Patent

active

054024692

ABSTRACT:
A system for locating any mobile body or a plurality thereof within a predetermined environment, wherein each mobile body carries a transmitter (10 to 18), each transmitter producing a unique identifying signal, and a plurality of receivers (20 to 32) located in a corresponding plurality of defined regions in the environment, each receiver incorporating a FIFO buffer memory (28) into which carrier identifying data is inserted and a controller for interrogating the receiver means in turn to link the identification data with location data.

REFERENCES:
patent: 4275385 (1981-06-01), White
patent: 4495496 (1985-01-01), Miller, III
patent: 4601064 (1986-07-01), Shipley
patent: 4649385 (1987-03-01), Aires et al.
patent: 4752951 (1988-06-01), Konneker
patent: 4837568 (1989-06-01), Snaper
patent: 4952928 (1990-08-01), Carroll et al.
patent: 4990892 (1991-02-01), Guest et al.

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