Patents by Inventor Luke Aaron Perkins

Luke Aaron Perkins 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).

  • Charging a transponder in a security system
    Patent number: 5790014
    Abstract: A security system utilizing a key-mounted transponder achieves fast and accurate charging of the transponder by using a frequency search and acquisition phase which attempts partial charging pulses at a plurality of spaced frequencies. After a successful partial charging, a frequency calibration signal is received from the transponder which provides a reference in the transceiver for producing a pulse for fully charging the transponder. Frequency search and acquisition allows robust system operation while using low cost and low tolerance parts.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 4, 1998
    Assignee: Ford Motor Company
    Inventors: Scott O. Campbell, Lawrence Peter Kirk, David Philip Laude, Luke Aaron Perkins, William David Treharne