Patents by Inventor Lawrence Blackledge

Lawrence Blackledge 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).

  • Battery signature identification system
    Patent number: 10145898
    Abstract: A system for authenticating a rechargeable battery and for detecting counterfeit batteries includes battery characteristics detection circuitry and a battery. Battery characteristics detection circuitry performs an authentication routine on the battery such that battery characteristics of the battery are measured. Battery characteristics include state of health, state of charge, internal resistance, relaxation time, and impedance. The battery is validated by comparing the battery characteristics to validation parameters provided by a manufacturer. If battery characteristics are within ranges of the validation parameters, then the battery is authenticated as originating from a particular manufacturer or batch. If validation fails, then the device is disabled or protected. In one example, validation parameters are stored and compared locally on a device. In another example, the device communicates battery characteristics to a remote entity that performs the validation.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 4, 2018
    Assignee: Active-Semi, Inc.
    Inventors: Wayne Chen, Lawrence Blackledge
  • Battery Signature Identification System
    Publication number: 20160047861
    Abstract: A system for authenticating a rechargeable battery and for detecting counterfeit batteries includes battery characteristics detection circuitry and a battery. Battery characteristics detection circuitry performs an authentication routine on the battery such that battery characteristics of the battery are measured. Battery characteristics include state of health, state of charge, internal resistance, relaxation time, and impedance. The battery is validated by comparing the battery characteristics to validation parameters provided by a manufacturer. If battery characteristics are within ranges of the validation parameters, then the battery is authenticated as originating from a particular manufacturer or batch. If validation fails, then the device is disabled or protected. In one example, validation parameters are stored and compared locally on a device. In another example, the device communicates battery characteristics to a remote entity that performs the validation.
    Type: Application
    Filed: July 24, 2015
    Publication date: February 18, 2016
    Inventors: Wayne Chen, Lawrence Blackledge