Patents by Inventor Andrew Ansell

Andrew Ansell 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).

  • RFID tag distance measurer
    Patent number: 9442180
    Abstract: A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 13, 2016
    Assignee: Trimble Navigation Limited
    Inventors: Jeffrey Sanders, Andrew Ansell, James M. Janky
  • RFID TAG DISTANCE MEASURER
    Publication number: 20160116565
    Abstract: A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.
    Type: Application
    Filed: December 22, 2015
    Publication date: April 28, 2016
    Inventors: Jeffrey Sanders, Andrew Ansell, James M. Janky
  • RFID tag distance measurer
    Patent number: 9285470
    Abstract: A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 15, 2016
    Assignee: Trimble Navigation Limited
    Inventors: Jeffrey Sanders, Andrew Ansell, James M. Janky
  • RFID TAG DISTANCE MEASURER
    Publication number: 20140347168
    Abstract: A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Trimble Navigation Limited
    Inventors: Jeffrey Sanders, Andrew Ansell, James M. Janky
  • Reverse RFID location system
    Patent number: 8797141
    Abstract: A reverse RFID location system is based on set of RFID tags in which each tag stores data representing its position.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: August 5, 2014
    Assignee: Trimble Navigation Limited
    Inventors: Gregory C Best, Andrew Ansell, Gwen Byard, James W Jervis, Jeffrey D Sanders
  • Reverse RFID location system
    Publication number: 20110043373
    Abstract: A reverse RFID location system is based on set of RFID tags in which each tag stores data representing its position.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Applicant: Trimble Navigation Limited
    Inventors: Gregory C. Best, Andrew Ansell, Gwen Byard, James W. Jervis, Jeffrey D. Sanders