Patents by Inventor Jonathan Cyril Skilton Doll

Jonathan Cyril Skilton Doll 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).

  • Automatic activation of speed measurement in mobile device based on available motion indicia
    Patent number: 9185525
    Abstract: A system and method for speed measurement of a mobile device using a speed which does not need to be continually activated.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: November 10, 2015
    Assignee: BlackBerry Limited
    Inventors: David Blaine Dietz, Nagula Tharma Sangary, Sean Bartholomew Simmons, Mihal Lazaridis, Jonathan Cyril Skilton Doll, Perry Jarmuszewski
  • Automatic activation of speed measurement in mobile device based on available motion indicia
    Patent number: 8355751
    Abstract: A system and method for speed measurement of a mobile device, using an speed sensor such as a satellite navigation system or an accelerometer, does not need such speed sensor to be continually activated. The system and method make use of a monitor for monitoring at least one motion indicium for indicating that the speed of the mobile device is above an initial threshold, including but not limited to: monitoring the Doppler shift measurements of a timing signal; monitoring the timing advance of a cellular radio signal; monitoring the number of base stations visible to the mobile device; monitoring the frequency of base station handover, however determined; monitoring the level crossings and/or the autocorrelation of an RSSI signal; and/or triangulation of the position of the mobile device. When the monitor determines that the mobile device may be travelling in excess of a threshold speed, a speed sensor is activated to confirm the indication.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: January 15, 2013
    Assignee: Research In Motion Limited
    Inventors: David Blaine Dietz, Nagula Tharma Sangary, Sean Bartholomew Simmons, Mihal Lazaridis, Jonathan Cyril Skilton Doll, Perry Jarmuszewskl
  • AUTOMATIC ACTIVATION OF SPEED MEASUREMENT IN MOBILE DEVICE BASED ON AVAILABLE MOTION
    Publication number: 20100210301
    Abstract: A system and method for speed measurement of a mobile device, using an speed sensor such as a satellite navigation system or an accelerometer, does not need such speed sensor to be continually activated. The system and method make use of a monitor for monitoring at least one motion indicium for indicating that the speed of the mobile device is above an initial threshold, including but not limited to: monitoring the Doppler shift measurements of a timing signal; monitoring the timing advance of a cellular radio signal; monitoring the number of base stations visible to the mobile device; monitoring the frequency of base station handover, however determined; monitoring the level crossings and/or the autocorrelation of an RSSI signal; and/or triangulation of the position of the mobile device. When the monitor determines that the mobile device may be travelling in excess of a threshold speed, a speed sensor is activated to confirm the indication.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: David Blaine Dietz, Nagula Tharma Sangary, Sean Bartholomew Simmons, Mihal Lazaridis, Jonathan Cyril Skilton Doll, Perry Jarmuszewskl