Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Traffic analysis or control of surface vehicle
Reexamination Certificate
2005-06-21
2005-06-21
Nguyen, Tan Q. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Traffic analysis or control of surface vehicle
C701S119000, C340S905000, C348S149000, C180S167000
Reexamination Certificate
active
06909962
ABSTRACT:
The present invention discloses a traffic caution apparatus which may distinguish the running direction of vehicles. The apparatus includes a transmitter and a receiver. The transmitter an ultrasonic transmitting unit and a FM stereo transmitting unit. The receiver includes a FM stereo receiving unit, a decoding unit, an ultrasonic receiving unit, a monolithic processor, an analogy switch, a speed recording/reproducing unit, a given voltage unit. The apparatus uses ultrasonic wave to distinguish running direction and speed of vehicles, and can send caution speech information with accuracy to a vehicle whose speed must be limited. The apparatus has expandable function which may provide other caution information, large number of travel and business information to vehicles. This apparatus may substitute travel caution signs.
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Huang Zexiu
Zhang Shanshan
Nguyen Tan Q.
Patterson Thuente Skaar & Christensen P.A.
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