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Optical traffic preemption detector circuitry 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G08G-001/07
출원번호 US-0720894 (1991-06-24)
발명자 / 주소
  • Hamer Steven M. (Willernie MN)
출원인 / 주소
  • Minnesota Mining and Manufacturing Company (St. Paul MN 02)
인용정보 피인용 횟수 : 43  인용 특허 : 0

초록

An optical traffic preemption detector detects pulses of light emitted by an approaching emergency vehicle and provides an output signal which is processed by a phase selector. The phase selector can request a traffic signal controller to preempt a normal traffic signal sequence to give priority to

대표청구항

A detector for receiving pulses of light from an emergency vehicle and sending an output signal to a remote phase selector, the detector comprising: photocell means for providing an electrical signal in response to pulses of light received; rise time filter means coupled to the photocell means for r

이 특허를 인용한 특허 (43)

  1. Eichhorst, Kevin Clare, Adaptive traffic signal preemption.
  2. Johnson, David Randal, Centralized management of preemption control of traffic signals.
  3. Gross, Dave, Collision avoidance and traffic signal preemption system.
  4. Johnson, David Randal; Eichhorst, Kevin, Control of traffic signal phases.
  5. Edwardson, David John, Defining approach maps for traffic signal preemption controllers.
  6. Bachelder,Aaron; Wickline,Richard, Detection and enforcement of failure-to-yield in an emergency vehicle preemption system.
  7. Baker, Paul Alan, Emergency respondence warning system.
  8. Diba, Keyvan T.; Manavi, Payam, Emergency traffic signal attachment.
  9. Bachelder,Aaron D.; Foster,Conrad F., Emergency vehicle control system traffic loop preemption.
  10. Bachelder, Aaron D.; Foster, Conrad F., Emergency vehicle traffic signal preemption system.
  11. Bachelder,Aaron D.; Foster,Conrad F., Emergency vehicle traffic signal preemption system.
  12. McKenna, Louis H, Emergency warning system for approach of right of way vehicle.
  13. McKenna,Louis H, Emergency warning system for approach of right of way vehicle.
  14. Meyer, Charles B.; Eichhorst, Kevin; Hall, Timothy J., Emitter programmer and verification system.
  15. McKenna, Louis H., First responders' roadway priority system.
  16. Kaller, Roy Scott; Brennan, Aaron, Headphone responsive to optical signaling.
  17. Roze des Ordons Jacques,FRX ; Merle Jean-Pierre,FRX, Homing head for a flying body.
  18. Leonard A. Edwards, Interactive automated traffic control system.
  19. Schwartz, Mark; Hall, Timothy, LED emitter for optical traffic control systems.
  20. Schwartz, Mark; Meyer, Charles, Light emitters for optical traffic control systems.
  21. Pfleging,Gerald W.; Wilkin,George Paul, Method and apparatus for secure traffic light interruption.
  22. Bachelder,Aaron D., Method and system for beacon/heading emergency vehicle intersection preemption.
  23. Clerk, Frederick George; Mahdavian, Hossien, Mobile plant proximity detection and warning system.
  24. Johnson, David Randal, Monitoring and diagnostics of traffic signal preemption controllers.
  25. Johnson, David Randal, Monitoring management and presentation of preemption control data of centrally managed traffic signals.
  26. Edwardson, David John; Johnson, David R.; Eichhorst, Kevin Clare; Cosgrove, Patrick Keenan; Montgomery, Nicole Maria, Monitoring traffic signal preemption.
  27. Schwartz,Mark A., Multimode traffic priority/preemption intersection arrangement.
  28. Schwartz, Mark A., Multimode traffic priority/preemption vehicle arrangement.
  29. Merle Jean-Pierre,FRX ; Solenne Thierry,FRX ; Ni Yang,FRX ; Devos Francis,FRX, Photosensitive detector and mosaic of photosensitive detectors for the detection of luminous flashes and applications.
  30. Eichhorst, Kevin, Prioritization of traffic signal preemption requests received from multiple sources over different communication mediums.
  31. Schwartz, Mark A., Remote activation of a vehicle priority system.
  32. Bachelder,Aaron D., Roadside-based communication system and method.
  33. Wilson Joseph F., School bus alert.
  34. Grauer, Yoav; David, Ofer; David, Ya'ara; Garten, Haim; Krelboim, Alon; Lifshits, Sharon; Sheich, Oren, Smart traffic sign system and method.
  35. Worthy, David G.; Geiger, Timothy A., System and method for traffic preemption emitter type detection and response.
  36. Roberts, Douglas Gordon; Johnson, Jerry Lee, Systems and method for controlling preemption of a traffic signal.
  37. Patrick Dijkstra NL, Traffic information analyzer system.
  38. Hochstein Peter A. (2966 River Valley Dr. Troy MI 48098), Traffic information system using light emitting diodes.
  39. Bachelder,Aaron D., Traffic preemption system.
  40. Schwartz,Mark A., Traffic preemption system communication method.
  41. Schwartz,Mark A., Traffic preemption system signal validation method.
  42. Schwartz,Mark A., Traffic preemption system with headway management.
  43. Haagenstad Jeffrey D. (Roseville MN) Hamer Steven M. (Willernie MN) Hagen Ronald A. (Grant Township MN) Ring Edmund J. (Circle Pines MN) Christopher Kim K. (Woodbury MN) Keyes Theodore B. (St. Paul M, Vehicle tracking system incorporating traffic signal preemption.
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