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Class 340/931 - Traffic control or local controller failure indicator


Subclass of Class 340 - Communications: electrical
Definition: Subject matter having means to detect failure of one of
No. of patents: 81
Last issue date: 11/08/2011


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NumberTitleIssue Date
8054203Apparatus and method for determining presence of objects in a vehicle
Vehicle including a first substructure and a second substructure arranged such that an interior space is defined by or between the first and second substructures, and an arrangement for determining whether an object is present in the interior space. The arrangement ...
11/08/2011
7772990Signal monitor with programmable non-critical alarm
A signal monitor includes an alarm function module configured to compare a plurality of input signals associated with traffic control to a set of programmable criteria associated with predetermined events, and to produce a non-critical alarm signal when at least one...
08/10/2010
7432827Device for activating inductive loop sensor of a traffic light control system
A system and method for activating vehicle sensors which are based on inductive loops. A voltage controlled oscillator is scanned throughout the required frequency range while a balanced mixer, low-pass filter, and detector are arranged to show the presence of a sig...
10/07/2008
7378987Traffic control malfunction management unit with per channel red enable
A method and apparatus for monitoring for Red Fail faults in a traffic signal control system. Traffic control signals generated by a traffic control unit are grouped into channels. Certain channels are specified for Red Fail testing in which all lights in a given ch...
05/27/2008
7369056Photoelectric controller for electric street lighting
An electric street light controller apparatus and monitoring method allows automatic street light turn-on and turn-off characteristics to be field programmable using RFID technology, lamp current magnitude recording, auxiliary sensor input, diagnostic alarming and d...
05/06/2008
7333027Power supply for LED signal
A power supply for a Light Emitting Diode (LED) traffic signal that controls the light intensity. The light intensity conforms to a predetermined pattern based on the input voltage root mean square value (Vrms). The input voltage is changed by acting on t...
02/19/2008
7317405Solar-powered wireless crosswalk warning system
A solar-powered crosswalk warning system is disclosed. The crosswalk warning system comprises two or more crosswalk warning beacons, located on opposite sides of the road. Each beacon comprises a solar panel to recharge a battery, a battery back, a control unit to c...
01/08/2008
7274307Traffic light violation indicator
Provided is a signal violation indicator for signaling the phasing of a vehicular control signal. The vehicular control signal may have a control circuit including at least a first traffic lamp and a second traffic lamp. The signal violation indicator comprises a li...
09/25/2007
7258314Span wire assembly for traffic control device
A span wire assembly for supporting a traffic control device. The span wire assembly includes a pair of vertical members or cast arms for attachment to the traffic control device. The cast arms are integrally formed with tubular ends and a centrally positioned wirin...
08/21/2007
7246037Methods and apparatus for an improved signal monitor
A malfunction management unit (MMU) includes advanced diagnostic and set-up capabilities accessed through a display-based user interface. In general, the MMU is capable of displaying (1) monitor status information, wherein the monitor status information includes inf...
07/17/2007
7193529Traffic signal failure notification system
A signaling system includes a housing that has monolithically formed sides defining a cavity therebetween and an open rear face. A pair of U-shaped guide rails are fastened to the housing and extend vertically away therefrom along a longitudinal length of the system...
03/20/2007
7191076Expandable intelligent electronic device
An intelligent electronic device (IED) includes a base module having a power monitoring circuit operative to monitor a parameter of a portion of a power distribution system and generate an analog signal representative thereof. The base module also includes a process...
03/13/2007
7148632LED lighting system
A lighting device that can generate light of variable color and intensity under processor control. Multiple lighting devices of a modular design can be incorporated into a lighting system to illuminate larger areas. A lighting module includes three groups of LEDs ea...
12/12/2006
7129856Illuminated sign for traffic control and method for functional monitoring of such a sign
An illuminated sign is for traffic control, in particular for road traffic, and includes light sources for generation of the sign and a monitoring device for functional monitoring of the light source. The light sources are embodied as light diodes and the monitoring...
10/31/2006
7123165Apparatus and method for monitoring the output of a warning or indicator light
An operational status detection system for a railroad warning device having a warning light, comprising: a photo detector configured to generate a signal corresponding to a light output of the warning light of the railroad warning device, the photo detector comprisi...
10/17/2006
7113108Emergency vehicle control system traffic loop preemption
An emergency vehicle traffic signal preemption system using existing inductive traffic loops that is either “car-active” or “car-passive”. In the “car-active” system, a passive element having position information transmits an ID tag and the position info...
09/26/2006
7109886Traffic control malfunction management unit with co-channel monitoring
A method and apparatus for monitoring for Red Fail faults in a traffic signal control system. Traffic control signals generated by a traffic control unit are grouped into channels. A parent-child relationship is established between some channels. When testing for a ...
09/19/2006
7102538LED signal light
The present invention provides an LED signal light device comprising a central processing unit, a control panel, an LED signal light, an output and input interface, a battery and an adapter. The central processing unit comprises a microprocessor, a memory and an int...
09/05/2006
7098807Traffic-signaling system
The present invention provides a traffic-signalling device suitable for providing information to oncoming traffic. The traffic-signalling device comprises a moveable member suitable for attachment to a support and a solar powered drive system. The moveable member is...
08/29/2006
7088261Traffic signal light having ambient light detection
A traffic signal (310) having a reflector (322, 400) having a plurality of reflective surfaces (330, 402) directing incident ambient light received from the signal lens (318) to a photodetector (322). The reflector is disposed prox...
08/08/2006
7057529LED traffic signal load switch
An LED traffic signal having a single switching power supply placed inside the load switch to supply power to each of the aspect signals. The traffic signal has several aspects, such as red, yellow and green. The load switch comprises a switching power supply to sup...
06/06/2006
7036256Display device
A display device comprises at least first, second and third plates each having forward and rearward surfaces wherein the second plate is rearward of the first plate, and the third plate is rearward of the second plate. A biasing member permits relative movement of a...
05/02/2006
6963161Light bulb assembly having a light bulb with the ability to change color
A light bulb assembly having a light bulb with the ability to change color. The light bulb assembly comprises a light bulb, a socket for containment of the light bulb, and a light switch assembly for selectively providing current to the socket and attached light bul...
11/08/2005
6956502Traffic control sign
A traffic control sign is provided which automatically unfolds and displays the message STOP and displays flashing messages SIGNAL OUT and 4 WAY upon power failure to traditional traffic lights. The traffic control sign includes a pair of sign plates hingedly attach...
10/18/2005
6956494Signal lamps and apparatus
An LED signal lamp comprises at least two separate LED arrays which have separate power feeds and wherein the LEDs of the arrays are positioned with respect to each other such that when lit they provide a composite light signal output and such that when the LEDs of ...
10/18/2005
6583731Fault detection for traffic light systems using electronic lighting elements
An indicator controller (18), an optical assembly (10) having the indicator controller (10), a traffic light system that comprises at least one of the optical assembly (10) and a method for fault indication by the indicator controller (10) is disclosed. A...
06/24/2003
6570505LED lamp with a fault-indicating impedance-changing circuit
In a light-emitting-diode lamp, there is provided an input impedance-changing circuit for establishing a low input impedance circuit when the light-emitting-diode lamp is missingline turned off. This input impedance-changing circuiting comprises Shunt cir...
05/27/2003
6504485Monitoring apparatus and control apparatus for traffic signal lights
Monitoring and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect. The illumination conditions of respective signal lights are detected usin...
01/07/2003
6405118System for characterizing a computer to control a wheel anti-lock device for a motor vehicle
This system for characterizing a computer to control a wheel anti-lock device, incorporated in an onboard electronic system (1;) for a motor vehicle, using a remote coding device (6), the computer (2) comprising a data processing unit (4) associated with ...
06/11/2002
6337640Inductive loop sensor for traffic detection, and traffic monitoring apparatus and method using such a loop sensor
An inductive loop sensor for detecting vehicles travelling along a lane of a roadway comprises a figure-of-eight conducting loop. The loop is arranged with its three segments transversely across the roadway to detect the wheels of vehicles travelling alon...
01/08/2002
6236331LED traffic light intensity controller
The LED traffic light electronic controller stabilizes the total output light intensity of the traffic light in order to ensure a constant light intensity of each traffic light color throughout the entire traffic light lifetime. The controller detects the...
05/22/2001
6184799Monitoring apparatus and control apparatus for traffic signal lights
Monitoring and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect. The illumination conditions of respective signal lights are detected usin...
02/06/2001
6144317Traffic signal with visible indication in a direction other than direct line of sight
A light pipe is configured to pass light from a selected light source, such as the green, amber or red light on a traffic signal light to the left, right or rear of the traffic signal light to provide a visual indication of the selected traffic signal lig...
11/07/2000
6075465Device for validating digital message applicable in particular to rail traffic regulating systems
Device for validating digital messages, applicable, in particular, to rail traffic regulating systems, of the type in wihch the absolute identity and the dynamic state of two digital messages (A and B) originating from two processing channels in parallel ...
06/13/2000
5952940Moving-body communication device
When a vehicle-mounted device receives a FCM signal from a road-side communication device, the vehicle-mounted device receives or transmits a data signal in accordance with a link direction and a time slot specified by the FCM signal. When the vehicle-mou...
09/14/1999
5898389Blackout backup for traffic light
A system and method for automatically supplying a flashing line voltage from power stored in an auxiliary battery to power red traffic signal lamps using clusters of light emitting diodes during a blackout condition. A plurality of flash block connectors ...
04/27/1999
5777893Inductive loop diagnostic interface
A system and method for transferring historic and instantaneous diagnostic data relating to performance of an inductive loop vehicle detector 10 is disclosed and claimed. The aforementioned date is gathered over a period of time, updated and stored in a d...
07/07/1998
5734116Nema cabinet monitor tester
An apparatus and method for testing a conflict monitor of the present invention includes a housing having a plurality of switches which can be manually manipulated in order to simulate the output of a controller. The conflict monitor is tested by disconne...
03/31/1998
5663719LED traffic signal light with automatic low-line voltage compensating circuit
The present invention relates to an LED traffic signal light containing numerous LEDs and a voltage compensation circuit which allows the traffic light to operate over a wide range of input power voltages, while generating sufficient light intensity to co...
09/02/1997
5659305Backup traffic signal management system and method
An backup vehicular traffic control system employs a connector-switch including a normally-closed electrical switch connected in series between a traffic signal and a primary control system. In the event of an emergency condition, such as a failure of the...
08/19/1997
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