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| Number | Title | Issue Date |
| 7443315 | LED traffic light A vertical by standing LED paneled traffic light that is capable of communicating approximately how much time remains before the traffic light changes from a signal directing motorists to proceed to a signal directing motorists to stop. The traffic light having an L... | 10/28/2008 |
| 7375650 | LED traffic light The present invention provides traffic lights comprising an LED panel for directing motor traffic, an LED panel for directing pedestrian traffic, an LED street sign, an LED panel for displaying an animated advertisement or important message, such as traffic conditio... | 05/20/2008 |
| 6611610 | Vehicle lamp control A system and method of automatically controlling vehicle headlamps includes an image sensor and a controller to generate headlamp control signals.... | 08/26/2003 |
| 6587573 | System for controlling exterior vehicle lights A system and method of automatically controlling exterior vehicle lights includes an image sensor and a controller to generate control signals. The control signals are derived based on information obtained from the image sensor as well as other detected p... | 07/01/2003 |
| 6552668 | Attachment to traffic light apparatus for visual indication of traffic light duration An attachment to a traffic light apparatus for indicating duration of a current traffic light signal comprises a panel that consists of a plurality of lamps which are electrically connected in parallel to a source of power supply and are controlled by a c... | 04/22/2003 |
| 6392563 | Traffic light backup system using light-emitting diodes A traffic light backup system for use with a traffic light is described. The traffic light backup system includes an auxiliary light associated with at least one of the enclosure housing the traffic lights and rechargeable batteries associated with the au... | 05/21/2002 |
| 6100819 | Vehicular traffic signalization method and apparatus for automatically documenting traffic light violations and protecting non-violating drivers The subject invention relates to methods and apparatus for monitoring and regulating the flow of traffic through intersections and specifically to an improved method and apparatus for automatically detecting and documenting disregard of traffic signals fo... | 08/08/2000 |
| 5945924 | Fire and smoke detection and control system A fire detection system combines a CO2 gas detector with a smoke detector. Logic circuitry combines the outputs of both detectors to minimize false alarms and provide a rapid response time. In a preferred embodiment the need for periodic cleani... | 08/31/1999 |
| 5771616 | Display device with disk and LED A display element has a disk which rotates on an axis to show its bright or dark side in the viewing direction. When the bright side is showing the disk allows passage of light from an LED. When the dark side is showing the disk masks the light from the L... | 06/30/1998 |
| 5726648 | Time indicating traffic light A time indicating traffic light that includes a vertically-oriented and rectangular-parallelepiped-shaped housing, a circular-shaped "stop" indicator light, a circular-shaped "caution" indicator light, seven rectangular-shaped "go" indicator lights, and a... | 03/10/1998 |
| 5619194 | Fiber optic traffic signal light system having a shutter control The system includes a high-intensity light source, a fiber optic conduit for transmitting a light-beam, and colored lenses, which emit red, yellow, and green light on fiber optic lines. Each traffic light has a shutter and control means for opening and cl... | 04/08/1997 |
| 5504481 | Fail-safe stop light apparatus An apparatus for covering a face of a traffic light with a warning sign as a result of a power failure to the traffic light. A first member is rotatably mounted to one side of the traffic light and a second member is rotatably mounted to the other side of... | 04/02/1996 |
| 4255737 | Traffic signal with time duration indicator and mechanical synchronization A traffic signal having a four sided housing, each side of which contains red and green areas which can be illuminated. Furthermore, each side contains a rotating semi-circular mask which simultaneously, progressively covers one portion of one of the colo... | 03/10/1981 |
| 3970988 | Conveyor-type traffic signal device A traffic signal device, capable of being suspended from an overhead support, includes red colored and green colored lamps secured to an endless conveyor mounted about a pair of spaced sprocket wheels so as to effect movement of the lamps from the top to ... | 07/20/1976 |
