Communications: electrical – Traffic control indicator
Reexamination Certificate
2004-08-18
2010-10-26
Tweel, Jr., John A (Department: 2612)
Communications: electrical
Traffic control indicator
C701S301000, C348S149000
Reexamination Certificate
active
07821422
ABSTRACT:
A novel system and method of integrating an RF emissions device, such as a radar system (103A), within a traffic control indicator (101) system. The system and method determines, using LFM-CW radar signals (201) and a multi-stage spectral processing algorithm (600), if one or more object/vehicle targets will enter an intersection and comprises receiving a radar echo response (203) indicating the object/vehicle target (104) is approaching the intersection, receiving range and velocity of the object/vehicle targets (104), and based on the receiving, determining if the object/vehicle target (104) will enter the intersection. The system and method can programmatically be configured to activate red-light-hold, green-light-extension, or left-turn-warning.
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Hutchison Michael C.
Pautler James A.
Smith Mark A.
Klinger Robert C.
Light Vision Systems, Inc.
Tweel, Jr. John A
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