3824469 is referenced by 39 patents and cites 7 patents.

A comprehensive electronic communication system for vehicles to permit transmission and reception of signals with respect to traffic warnings, crash warnings, emergency location signals, assistance signals, danger signals, and traffic advisories and the like, including a transmitter for repetitive transmitting on a single carrier frequency of a digital codeword and a receiver which provides controllable decoding and automatic receiver tuning means for automatically tuning a receiver to a predetermined local channel.

Comprehensive automatic vehicle communication, paging, and position location system
Application Number
Publication Number
Application Date
June 16, 1972
Publication Date
July 16, 1974
Ristenbatt Marlin Philip
Barnes Kisselle Raisch & Choate
H04b 03/60
G01S 13/74
G01S 13/00
G08G 01/967
G08G 01/962
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