Electronic billboard and vehicle traffic control communication s

Telecommunications – Transmitter and receiver at separate stations – Short range rf communication

Patent

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Details

455 70, 340905, H04B 100

Patent

active

052147932

ABSTRACT:
A communication system uses simple microwave transmitters disposed along roadways and in-vehicle mounted receivers to transmit encoded signals to produce location-specific commercial, traffic regulatory, emergency and other information to operators of motor vehicles. An optional remote interface links transmitters to regulatory and commercial users in real-time. A microprocessor in the receiver uses the coded signals to produce messages from prerecorded messages or from message parts stored in a replaceable memory device, and to provide the messages either audibly, visually or both. The microprocessor functions under operator supplied instructions to select certain message types for display and to reject unwanted messages. The memory device is recorded in one or more languages to allow the operator to select a preferred language for message presentation.

REFERENCES:
patent: 4270117 (1981-05-01), Ziegelbein et al.
patent: 4510622 (1985-04-01), Mori et al.
patent: 4812843 (1989-03-01), Champion, III
patent: 5020143 (1991-05-01), Duckeck
patent: 5065452 (1991-11-01), Duckeck et al.

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