Patents by Inventor Mark A. J. Carragher

Mark A. J. Carragher 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).

  • Clock circuit for a microprocessor
    Patent number: 9571070
    Abstract: A mobile communication device includes an analog clock and a digital clock circuit. The analog clock circuit is configured to generate an oscillating output. The digital clock circuit is configured to generate a digital clock output having a frequency that is substantially equal to the frequency of the oscillating output.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: February 14, 2017
    Assignee: BlackBerry Limited
    Inventors: Mark A. J. Carragher, John William Wynen
  • Clock circuit for a microprocessor
    Patent number: 8749290
    Abstract: A mobile communication device includes an analog clock and a digital clock circuit. The analog clock circuit is configured to generate an oscillating output. The digital clock circuit is configured to generate a digital clock output having a frequency that is substantially equal to the frequency of the oscillating output.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 10, 2014
    Assignee: BlackBerry Limited
    Inventors: Mark A. J. Carragher, John William Wynen
  • Clock circuit for a microprocessor
    Patent number: 8354868
    Abstract: A mobile communication device includes an analog clock and a digital clock circuit. The analog clock circuit is configured to generate an oscillating output. The digital clock circuit is configured to generate a digital clock output having a frequency that is substantially equal to the frequency of the oscillating output.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: January 15, 2013
    Assignee: Research In Motion Limited
    Inventors: Mark A. J. Carragher, John William Wynen
  • CLOCK CIRCUIT FOR A MICROPROCESSOR
    Publication number: 20100321081
    Abstract: A mobile communication device includes an analog clock and a digital clock circuit. The analog clock circuit is configured to generate an oscillating output. The digital clock circuit is configured to generate a digital clock output having a frequency that is substantially equal to the frequency of the oscillating output.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Mark A. J. Carragher, John W. Wynen
  • Clock circuit for a microprocessor
    Patent number: 7808292
    Abstract: A wireless communication device is described having a transmitter that generates electromagnetic interference when operating in a transmit mode. The wireless communication device comprises a clock circuit including a first clock element configured to generate a first clock output, and a second clock element configured to generate a second clock output. Also included is a controller configured to switch between the first clock output and the second clock output when the transmitter is operating in the transmit mode.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: October 5, 2010
    Assignee: Research In Motion Limited
    Inventors: Mark A. J. Carragher, John W. Wynen
  • CLOCK CIRCUIT FOR A MICROPROCESSOR
    Publication number: 20090174454
    Abstract: A wireless communication device is described having a transmitter that generates electromagnetic interference when operating in a transmit mode. The wireless communication device comprises a clock circuit including a first clock element configured to generate a first clock output, and a second clock element configured to generate a second clock output. Also included is a controller configured to switch between the first clock output and the second clock output when the transmitter is operating in the transmit mode.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 9, 2009
    Inventors: Mark A. J. Carragher, John W. Wynen
  • Clock circuit for a microprocessor
    Patent number: 7489177
    Abstract: A wireless communication device is described having a transmitter that generates electromagnetic interference when operating in a transmit mode. The wireleess communication device comprises a clock circuit including a first clock element configured to generate a first clock output, and a second clock element configured to generat a second clock output. Also included is a controller configured to switch between the first clock output and the second clock output when the transmitter is operating in the transmit mode.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: February 10, 2009
    Assignee: Research In Motion Limited
    Inventors: Mark A. J. Carragher, John W. Wynen
  • Clock circuit for a microprocessor
    Patent number: 7057436
    Abstract: A clock circuit comprises an analog clock element, a digital clock element, and a controller. The analog clock element is configured to generate an oscillating output. The digital clock element is configured to generate a digital clock output. The controller is configured to switch between the analog clock element and the digital clock element. The oscillating output and the digital clock output have substantially equivalent frequencies.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 6, 2006
    Assignee: Research in Motion Limited
    Inventors: Mark A. J. Carragher, John W. Wynen
  • Clock circuit for a microprocessor
    Publication number: 20040139364
    Abstract: A clock circuit comprises an analog clock element, a digital clock element, and a controller. The analog clock element is configured to generate an oscillating output. The digital clock element is configured to generate a digital clock output. The controller is configured to switch between the analog clock element and the digital clock element. The oscillating output and the digital clock output have substantially equivalent frequencies.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Inventors: Mark A. J. Carragher, John W. Wynen
  • Clock circuit for a microprocessor
    Patent number: 6693477
    Abstract: A clock circuit comprises an analog clock element, a digital clock element, and a controller. The analog clock element is configured to generate an oscillating output. The digital clock element is configured to generate a digital clock output. The controller is configured to switch between the analog clock element and the digital clock element. The oscillating output and the digital clock output have substantially equivalent frequencies.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: February 17, 2004
    Assignee: Research in Motion Limited
    Inventors: Mark A. J. Carragher, John W. Wynen