Patents by Inventor Thomas W. Seabury

Thomas W. Seabury has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8937560
    Abstract: A system of communicating vehicle detection is provided. The system may include a probe having at least a probe controller and a magnetic sensor for detecting the Earth's magnetic fields, and a control system having a main controller, an output port and a two-wire interface for communicating with the probe. The probe controller may be configured to quantify detected magnetic fields into a sensor output value per iteration at a predefined frequency, and initiate an interrupt per iteration the sensor output value is determined to exceed a predefined sensor value. The main controller of the control system may be configured to communicate a supply signal to the probe over a first line of the two-wire interface, monitor a return signal from the probe over a second line of the two-wire interface for interrupts, and generate a call signal on the output port indicative of confirmed vehicle detection if the number of consecutive interrupts in the return signal exceed a predefined interrupt limit.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 20, 2015
    Assignee: Diablo Controls, Inc.
    Inventor: Thomas W. Seabury
  • Publication number: 20140239945
    Abstract: A system of communicating vehicle detection is provided. The system may include a probe having at least a probe controller and a magnetic sensor for detecting the Earth's magnetic fields, and a control system having a main controller, an output port and a two-wire interface for communicating with the probe. The probe controller may be configured to quantify detected magnetic fields into a sensor output value per iteration at a predefined frequency, and initiate an interrupt per iteration the sensor output value is determined to exceed a predefined sensor value. The main controller of the control system may be configured to communicate a supply signal to the probe over a first line of the two-wire interface, monitor a return signal from the probe over a second line of the two-wire interface for interrupts, and generate a call signal on the output port indicative of confirmed vehicle detection if the number of consecutive interrupts in the return signal exceed a predefined interrupt limit.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: Diablo Controls, Inc.
    Inventor: Thomas W. Seabury
  • Patent number: 6087964
    Abstract: A programmable vehicle detector with operator actuatable function selection and parameter value setting keys, and an operational display. A small cluster (four) of key switches enables an operator to select programmable vehicle detector functions, such as pulse/presence, scanning/non-scanning, end of green control; and also adjust the value of settable parameters, such as loop frequency, sensitivity, delay time, and maximum presence time. The value of certain parameters is displayed, either by manual interrogation by operation of the switches during a set mode or automatically during normal operation. During normal operation, the display also indicates dynamically the relative value of the loop inductance, using a unique bar graph, the generation of Call a signal, and the time remaining in a delay time period and a maximum presence time period. The display further indicates which of several channels has been selected for function and parameter programming, or is currently being monitored for operation.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: July 11, 2000
    Assignee: Reno A & E
    Inventors: Robert S. Allen, Thomas R. Potter, Sr., Thomas W. Seabury
  • Patent number: 5247297
    Abstract: An estimate of the number of vehicles crossing a loop inductor having one or more interconnected discrete loops of the type found in vehicle detector system installations. A measuring signal follows changes in loop inductance caused by the influence of vehicles crossing the loop inductor. A vehicle count threshold value is computed by observing changes in the measuring signal caused by the first car crossing the loop. Subsequent excursions of the measuring signal between relative minima and relative maxima are tested against the threshold and a vehicle count event is registered when the differences exceed the threshold. After a predetermined count period, the number of vehicle counts is estimated from the total count events by multiplying them by an interpolation factor determined empirically from the type of loop inductor. Apparatus for perfoming the method is combined with a conventional vehicle detector system in a switch selectable apparatus for specifying vehicle detector mode or vehicle count mode.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: September 21, 1993
    Assignee: Detector Systems, Inc.
    Inventors: Thomas W. Seabury, Robert S. Allen
  • Patent number: 5198811
    Abstract: A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: March 30, 1993
    Assignee: Detector Systems, Inc.
    Inventors: Thomas Potter, Thomas W. Seabury
  • Patent number: 5089815
    Abstract: A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: February 18, 1992
    Assignee: Detector Systems, Inc.
    Inventors: Thomas Potter, Thomas W. Seabury
  • Patent number: 4731867
    Abstract: A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: March 15, 1988
    Assignee: Detector Systems, Inc.
    Inventors: Thomas W. Seabury, Thomas Potter
  • Patent number: D248948
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: August 15, 1978
    Inventor: Thomas W. Seabury
  • Patent number: D290707
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: July 7, 1987
    Assignee: Multisonics, Inc.
    Inventors: Robert S. Allen, Richard G. Freeman, Thomas W. Seabury