Roadway communication system

Details Roadway communication system Roadway communication system

2007-10-23

2007-10-23

Phu, Phuong (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S347000, C375S299000, C375S260000, C455S101000

Reexamination Certificate

active

10811813

ABSTRACT:
Road transmission antennas (4a,4b) are disposed along a road, each radiating a single cell (E) with electromagnetic waves at the same frequency and of the same content. A vehicle mounted device (3) receiving the waves from the road transmission antennas (4a,4b) performs antenna pattern diversity reception. When entering a wave blocking area of a large vehicle, a small vehicle is provided with seamless communications with a stationary station.

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