Patents by Inventor Graham Ronald Johnson

Graham Ronald Johnson 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).

  • Patent number: 9797960
    Abstract: A battery charge management method and device operable to perform that method. The battery charge management method comprises the steps of determining charge delivered to or from a battery based on Coulomb counting and updating an estimated battery state of charge based on the amount of delivered charge and measuring the battery current. Then comparing the updated estimated battery state of charge with a predetermined state of charge value of less than 100%, such that each predetermined state of charge value being associated with an expected battery current for that predetermined state of charge value. The method also includes modifying the updated estimated battery state of charge when the updated estimated state of charge is greater than the predetermined state of charge value and the measured battery current is greater than the expected battery current associated with the predetermined state of charge.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: October 24, 2017
    Assignee: PowerOasis Limited
    Inventors: Stephen Barrett, Peter William Dale Bishop, Graham Ronald Johnson
  • Publication number: 20130038292
    Abstract: A battery charge management method and device operable to perform that method. The battery charge management method comprises the steps of determining charge delivered to or from a battery based on Coulomb counting and updating an estimated battery state of charge based on the amount of delivered charge and measuring the battery current. Then comparing the updated estimated battery state of charge with a predetermined state of charge value of less than 100%, such that each predetermined state of charge value being associated with an expected battery current for that predetermined state of charge value. The method also includes modifying the updated estimated battery state of charge when the updated estimated state of charge is greater than the predetermined state of charge value and the measured battery current is greater than the expected battery current associated with the predetermined state of charge.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Inventors: Stephen Barrett, Peter William Dale Bishop, Graham Ronald Johnson
  • Patent number: 6646993
    Abstract: This invention relates to a communication apparatus (203) and method of format adaptation particularly suited for a CDMA cellular communication system. A transmitter (211) transmits a signal to a communication apparatus (203) using a specific transmission format. The transmission includes transmission format information allowing the receiver (217) to adapt to the current transmission format. A hybrid scheme is adopted where transmit format information needed for symbol information is generally transmitted in a transmission block prior to the one where it is applied whereas transmit format information relevant to processing of the demodulated symbols is transmitted in the same transmission block to which it applies. The communication apparatus (203) thus comprise adjustment means (223) operable to adjust a characteristic of the current or future transmission blocks in response to the received transmission format information. The invention is applicable to the UMTS mobile cellular communication system.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: November 11, 2003
    Assignee: Motorola, Inc.
    Inventors: Robert Ivor Davies, Graham Ronald Johnson