CA2257000A1 - Traffic control system using light emitting diodes - Google Patents

Traffic control system using light emitting diodes

Info

Publication number
CA2257000A1
CA2257000A1 CA002257000A CA2257000A CA2257000A1 CA 2257000 A1 CA2257000 A1 CA 2257000A1 CA 002257000 A CA002257000 A CA 002257000A CA 2257000 A CA2257000 A CA 2257000A CA 2257000 A1 CA2257000 A1 CA 2257000A1
Authority
CA
Canada
Prior art keywords
vehicle
control system
emitting diodes
light emitting
traffic control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002257000A
Other languages
French (fr)
Other versions
CA2257000C (en
Inventor
Peter A. Hochstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/386,816 external-priority patent/US5633629A/en
Application filed by Individual filed Critical Individual
Publication of CA2257000A1 publication Critical patent/CA2257000A1/en
Application granted granted Critical
Publication of CA2257000C publication Critical patent/CA2257000C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Traffic Control Systems (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A traffic control system (10) including a road (12), a vehicle (14) traveling on the road (12) and a traffic light assembly (16) operatively associated with the road (12) is disclosed. The traffic light assembly (16) comprises at least one traffic light or lamp means (18). The traffic light (18) includes a plurality of light emitting diodes (24) for projecting light rays to the vehicle (14) to provide the driver of the vehicle (14) with a visual signal. The system (10) further comprises a transmitter (20) including a power supply (30) and a modulator (72) for turning the diodes (24) on and off at a rate that is imperceivable to humans while optically transmitting information to a receiver (22) disposed on the vehicle (14).
CA002257000A 1995-02-08 1996-02-07 Traffic control system using light emitting diodes Expired - Fee Related CA2257000C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/386,816 US5633629A (en) 1995-02-08 1995-02-08 Traffic information system using light emitting diodes
US08/386,816 1995-02-08
CA002169037A CA2169037C (en) 1995-02-08 1996-02-07 Traffic control system using light emitting diodes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002169037A Division CA2169037C (en) 1995-02-08 1996-02-07 Traffic control system using light emitting diodes

Publications (2)

Publication Number Publication Date
CA2257000A1 true CA2257000A1 (en) 1996-08-09
CA2257000C CA2257000C (en) 2002-06-11

Family

ID=25678332

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002257000A Expired - Fee Related CA2257000C (en) 1995-02-08 1996-02-07 Traffic control system using light emitting diodes
CA002254271A Abandoned CA2254271A1 (en) 1995-02-08 1996-02-07 Traffic control system using light emitting diodes

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002254271A Abandoned CA2254271A1 (en) 1995-02-08 1996-02-07 Traffic control system using light emitting diodes

Country Status (1)

Country Link
CA (2) CA2257000C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2399206A (en) * 2003-03-05 2004-09-08 Qinetiq Ltd Signalling system with visible and non visible signals

Also Published As

Publication number Publication date
CA2254271A1 (en) 1996-08-09
CA2257000C (en) 2002-06-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed