Other

Tomar Electronics, Inc.

Rf Code, Inc.

Consyntrix, Inc.

David Gerard Worthy

Timothy A Geiger

Scott T Sikora

Steve J Koerner

James L Rodgers

Bart Millikan

Danny Lee Dubrall

Charles Glasser

Yazid Sidi

Steve Koerner

A traffic preemption system comprising a vehicle preemption unit configured to mount to a vehicle and transmit a signal comprising one or more identifying pulses, a detection unit configured to, receive the signal transmitted by the vehicle preemption unit, identify a characteristic of the vehicle preemption unit using the one or more identifying pulses, and calculate a timing delay based on the identified characteristic of the vehicle preemption unit, and an intersection preemption unit configured to receive the timing delay from the detection unit and change a traffic light in response to the timing delay.

System and method for traffic preemption emitter type detection and response

A laser emitter for a traffic control preemption system, the laser emitter comprising a laser emitting diode or array configured to emit a laser beam, one or more optics coupled to the laser emitting diode and configured to shape the laser beam, and a control module configured to trigger emission of the laser beam at a predetermined frequency and for a predetermined duration in accordance with one or more requirements of the traffic control preemption system.

System and method for laser emitter for traffic preemption

A traffic preemption system comprising an intersection control module, an intersection preemption unit comprising a signal detector configured to receive a signal transmitted by a vehicle preemption unit mounted to a vehicle and a remotely located electronic device comprising a controller configured to detect a variation in voltage. The system further comprises a cable coupling the intersection controller, the intersection preemption unit, and the remotely located electronic device, the cable comprising a power wire configured to carry a modulated voltage level and share power among the intersection preemption unit and the remotely located electronic device, a ground wire, and a communications wire configured to transmit a communications signal between the intersection preemption unit and the intersection controller.

System and related methods for powering and controlling traffic preemption system components

A system includes a transmit unit to transmit a signal including a data key, and a receiving unit to receive the signal. The receiving unit to determine an encryption key based at least in part on the data key and to decrypt encrypted data using the encryption key.

Location-based security, privacy, access control and monitoring system

A wireless head for a traffic preemption system. Implementations may include one or more optical receivers adapted to identify an optical signal transmitted by an optical transmitter included in a vehicle preemption unit mounted to a vehicle and one or more head radio transceivers adapted to identify a radio signal transmitted by a vehicle radio transceiver included in the vehicle preemption unit. A head radio frequency (RF) modem may also be included adapted to transmit one or more radio signals to an intersection RF modem. The head may be mounted to a traffic support fixture. The one or more optical receivers, one or more head radio transceivers, and the head RF modem may all be operably coupled together within the wireless head. The intersection preemption unit may be adapted to change a traffic light in favor of the vehicle to which the vehicle preemption unit is mounted.

Wireless head for a traffic preemption system

A traffic preemption system and related methods. Implementations may include a vehicle preemption unit mounted to a vehicle including an optical transmitter adapted to identify to an intersection preemption unit coupled with an intersection system controller the presence of the vehicle. The vehicle preemption unit may include a vehicle radio transceiver and the optical transmitter and the vehicle radio transceiver may be coupled with a vehicle controller. The intersection preemption unit may include an optical receiver and an intersection radio transceiver. The optical receiver and the intersection radio transceiver may each be coupled with an intersection controller. The intersection preemption unit may be adapted to change a traffic light in favor of the vehicle to which the vehicle preemption unit is mounted in response to an optical signal, a radio signal, or a combination of optical and radio signals from the vehicle preemption unit.

Traffic preemption system and related methods

A series of radio frequency identification (RFID) systems are delineated. An RFID system comprises an RFID signpost having a transmitter for transmitting signals of a predefined type, and a receiver for receiving signals of the predefined type, wherein the transmitter for transmitting signals of the predefined type cannot transmit until a determination is made that the predefined type of signal is not present at the receiver. Another RFID system comprises an RFID signpost including a transmitter having a continuous power dissipation rating, and a processor for controlling the transmitter such that peak pulse power of a transmission from the transmitter multiplied by its duty cycle does not exceed the continuous power dissipation rating for the transmitter.

RFID systems and methods employing infrared localization

A series of radio frequency identification (RFID) systems are delineated. One such RFID system comprises an RFID signpost, and a plurality of infrared transmitters, wherein each infrared transmitter of the plurality of infrared transmitters is arranged to cover, when transmitting, a distinct sector relative to the RFID signpost. Another RFID system comprises an RFID signpost having a transmitter for transmitting signals of a predefined type, and a receiver for receiving signals of the predefined type, wherein the transmitter for transmitting signals of the predefined type cannot transmit until a determination is made that the predefined type of signal is not present at the receiver. Still another RFID system comprises an RFID signpost including a transmitter having a continuous power dissipation rating, and a processor for controlling the transmitter such that peak pulse power of a transmission from the transmitter multiplied by its duty cycle does not exceed the continuous power dissipation rating for the transmitter.

A tamper monitoring system includes at least one active tag and a transmission link. The one active tag includes a transmitter and a receiver. The first end of the transmission link is connected to the transmitter and the second end is connected to the receiver. The transmitter is designed to transmit a non-constant signal to the transmission link to the receiver, and the receiver is designed to receive a signal from the transmission link and to correlate the received signal with the transmitted signal. When the received signal does not correlate with the transmitted signal, the active tag transmits a tamper beacon.

Tamper monitoring system and method

A bias compensating remote audience survey system () is configured to identify radio stations () to which tuners () are tuned. The tuners () have predetermined signals () emitted therefrom. The survey system () employs a method () of compensating for a station bias, or preference, toward or against one or more of radio stations (). The method () includes measuring durations () over which the predetermined signals () are received by the survey system (). The durations () are then combined by averaging to form a station average detection length (ADL) value () specific to one of the radio stations (). The station ADL value () is compared to a multi-station ADL parameter (). A sensitivity level () for the one radio stations () is adjusted in response to the comparison to compensate for station bias.

Bias compensating remote audience survey system and method

An interference attenuating remote audience survey system ( ) is configured to identify radio stations ( ) to which tuners ( ) are tuned, the tuners ( ) having local oscillator (LO) signals ( ) emitted therefrom. The system ( ) includes a first antenna ( ) for sensing a first signal ( ) at a selected LO frequency ( ), the first signal ( ) including one of the LO signals ( ) and an interference signal ( ). A second antenna ( ) receives a second signal ( ) at the selected LO frequency ( ), the second signal ( ) including an interference signal ( ). A shield element ( ) shields the second antenna ( ) from receiving the one of the LO signals ( ). The first and second signals ( ) are subtractively combined to produce a third signal ( ), the interference signal ( ) being attenuated from the third signal ( ). A receiver ( ) is configured to detect the one of the LO signals ( ) within the third signal ( ) to determine that one of the tuners ( ) is tuned to the one of the radio stations ( ) associated with the detected LO signal ( ).

Interference attenuating remote audience survey system and method

A survey system ( ) is configured to identify radio stations ( ) to which tuners ( ) are tuned. The tuners ( ) have predetermined signals ( ) emitted therefrom. In one embodiment, the survey system ( ) employs a method ( ) which includes selecting one of the predetermined signals ( ), receiving at a receiver ( ) a second signal ( ), and determining that one of the tuners ( ) is tuned to one of the radio stations ( ) when a harmonic ( ) of the fundamental frequency ( ) of the predetermined signal ( ) is detected within the second signal ( ). In an alternative embodiment, the survey system ( ) employs a method ( ) that includes generating and broadcasting a survey signal ( ) that is a one of the predetermined signals ( ) modified to incorporate a signal identifier ( ). The method ( ) further includes detecting a harmonic ( ) of the fundamental frequency ( ) of the predetermined signal ( ) within a received second signal ( ) and determining that one of the tuners ( ) is tuned to one of the radio stations ( ) when the detected harmonic ( ) includes the signal identifier ( ).

System and method for detecting harmonics of RF broadcast station survey signals

An active broadcast survey system ( ) is configured to identify radio stations ( ) to which tuners ( ) are tuned. The tuners ( ) have local oscillator signals ( ) emitted therefrom. The survey system ( ) employs a method ( ) that includes generating and broadcasting a survey signal ( ) that is a one of the local oscillator signals ( ) modified to incorporate a signal identifier ( ). The method ( ) further includes detecting a harmonic ( ) of the fundamental frequency ( ) of the local oscillator signal ( ) within a received broadcast signal ( ) and determining that one of the tuners ( ) is tuned to one of the radio stations ( ) when the detected harmonic ( ) includes the signal identifier ( ). The survey system ( ) also employs a method ( ) for active tuning of the system ( ), and another method ( ) for providing short range communication with a remote transceiver ( ) to facilitate uploading and downloading of system settings and data.

Active system and method for detecting harmonics of RF broadcast station survey signals

A bias compensating remote audience survey system (34) is configured to identify radio stations (162) to which tuners (24) are tuned. The tuners (24) have predetermined signals (26) emitted therefrom. The survey system (34) employs a method (152) of compensating for a station bias, or preference, toward or against one or more of radio stations (162). The method (152) includes measuring durations (62) over which the predetermined signals (26) are received by the survey system (34). The durations (62) are then combined by averaging to form a station average detection length (ADL) value (74) specific to one of the radio stations (162). The station ADL value (74) is compared to a multi-station ADL parameter (86). A sensitivity level (146) for the one radio stations (162) is adjusted in response to the comparison to compensate for station bias.

Growing community of inventors

Gilbert, AZ, United States of America

David Gerard Worthy