Auto theft detection system

Details Auto theft detection system Auto theft detection system

1977-11-16

1979-12-04

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

340 63, 343 65R, 343112R, 343113R, G01S 1100

Patent

active

041774663

ABSTRACT:
A system is disclosed for locating missing vehicles. Each vehicle broadcasts a locator signal when queried from a central station by an encoded call signal having a code characteristic of the vehicle. Indicators responsive to the locator signal are provided to determine the location of the missing vehicle.

REFERENCES:
patent: 3357020 (1967-12-01), Slifer, Jr.
patent: 3474460 (1969-10-01), Huebscher
patent: 3568161 (1971-03-01), Knickel
patent: 3714650 (1973-01-01), Fuller et al.
patent: 3828306 (1974-08-01), Angeloni
patent: 3922678 (1975-11-01), Frenkel
patent: 4021807 (1977-05-01), Culpepper et al.

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