Patents by Inventor Michael John Dalgleish

Michael John Dalgleish 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).

  • Assessing the accuracy of road-side systems
    Patent number: 7187302
    Abstract: A method of assessing the accuracy of a roadside traffic monitoring system (TMS) arranged to measure the speed and/or other parameters of vehicles passing a predetermined measurement point adjacent the TMS is disclosed. The method includes measuring the speed of each vehicle passing the measurement point using the TMS, measuring the moment in time that each vehicle passes the measurement point using the TMS, and recording the measured speeds and times as data pairs. The method further includes driving an Instrumented Probe Vehicle (IPV) at the measurement point, the IPV having an onboard system for measuring speed, determining the location of the IPV, determining a calibration time at which the determined location of the IPV corresponds to the location of the measurement point, and measuring a calibration speed of the IPV using the onboard system when the determined location of the IPV corresponds to the location of the measurement point.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: March 6, 2007
    Assignee: Golden River Traffic Limited
    Inventor: Michael John Dalgleish