Patents by Inventor Derek Yee

Derek Yee 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).

  • Retrodiction tracking system and related techniques
    Patent number: 10281573
    Abstract: A retrodiction tracker and related techniques and system are described. The technique extends the track range of an inbound target, initially detected with a low signal-to-noise ratio (SNR) (or initially detected with signals having a low probability of detection) to that of an outbound target where the low SNR detection is being associated with a confirmed, established, track. Retrodiction and backward propagation are being combined with historical plot-to-track association to significantly enhance the tracking capability of a radar.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 7, 2019
    Assignee: RAYTHEON CANADA LIMITED
    Inventors: Anthony M. Ponsford, Derek Yee, Richard McKerracher
  • Processing of pulse-echo measurement signals
    Patent number: 8022862
    Abstract: Pulse echo signals containing false echoes are processed by forming tracks of multiple received echoes and monitoring these tracks by a recursive filter such as a Kalman filter. A track velocity is estimated for each track, and the position of each the next echo on the track is predicted.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: September 20, 2011
    Assignee: Siemens Milltronics Process Instruments, Inc.
    Inventors: Jean-René Larocque, Derek Yee
  • Processing of pulse-echo measurements signals
    Publication number: 20100019949
    Abstract: Pulse echo signals containing false echoes are processed by forming tracks of multiple received echoes and monitoring these tracks by a recursive filter such as a Kalman filter. A track velocity is estimated for each track, and the position of each the next echo on the track is predicted.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Inventors: Jean-Renè Larocque, Derek Yee