Communications: electrical – Traffic control indicator – Intersection normally under local controller
Patent
1988-08-09
1990-03-13
Goldstein, Herbert
Communications: electrical
Traffic control indicator
Intersection normally under local controller
340933, 343700MS, G08G 108
Patent
active
049086154
ABSTRACT:
Preferred embodiments include a radar traffic light control system with a transmitter/receiver module including an array (103) of interconnected microstrip patch antennas (38) which also act as the resonators for oscillators powered by IMPATT diodes (34, 36); varactors (158) on the interconnections permit beam steering for scanning roadways.
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Dinger et al., "A 10 GHZ Space Power . . . ", 1986 IEEE MIT Symposium Digest, pp. 163-165.
Carver et al., "Microstrip Antenna Technology", IEEE Tran. Ant. and Prop., pp. 2-22, 1981.
Comfort James T.
Goldstein Herbert
Heiting Leo N.
Sharp Melvin
Texas Instruments Incorporated
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