Patents by Inventor Richard Martin Stephens

Richard Martin Stephens 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).

  • Interface control
    Patent number: 9184944
    Abstract: An apparatus, method and computer program, the apparatus comprising: communication circuitry configured to drive, on a first occasion, a first transition of a first electrical parameter on an electrical interface to another apparatus; determination circuitry configured to determine feedback information dependent upon a measured electrical parameter on the electrical interface; and control circuitry configured to use the determined feedback information to control the power output of the communication circuitry to achieve, on a second occasion subsequent to the first occasion, the first transition of the first electrical parameter on the electrical interface within a threshold time period.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 10, 2015
    Assignee: Nokia Technologies Oy
    Inventor: Richard Martin Stephens
  • INTERFACE CONTROL
    Publication number: 20120013311
    Abstract: An apparatus, method and computer program, the apparatus comprising: communication circuitry configured to drive, on a first occasion, a first transition of a first electrical parameter on an electrical interface to another apparatus; determination circuitry configured to determine feedback information dependent upon a measured electrical parameter on the electrical interface; and control circuitry configured to use the determined feedback information to control the power output of the communication circuitry to achieve, on a second occasion subsequent to the first occasion, the first transition of the first electrical parameter on the electrical interface within a threshold time period.
    Type: Application
    Filed: December 2, 2009
    Publication date: January 19, 2012
    Applicant: NOKIA CORPORATION
    Inventor: Richard Martin Stephens
  • Radio telephone having analog key signal output for power conservation
    Patent number: 5983116
    Abstract: A radio telephone has an array of manually operable switches mounted on a respective support. A processing circuit processes signals received via said switches and said support supplies signals to said processing device over a single transmission line. The processing device is arranged to determine an analogue characteristic of a signal received from the support via said transmission line in order to determine which of said manually operable keys has been manually operated. An analogue-to-digital converter can be used to measure voltage values identifying key selection or a timer can be used to measure capacitor charging or discharging.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: November 9, 1999
    Assignee: Nokia Mobile Phones Limited
    Inventors: Adrian Philip Nash, Richard Martin Stephens