Patents by Inventor Kenneth Geiszler

Kenneth Geiszler 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).

  • Radio frequency identification system
    Patent number: 6411199
    Abstract: A radio frequency identification system includes a transponder and a transponder reader. The transponder, responsive to an interrogation signal continuously transmitted by the transponder reader, generates a transponder signal modulated by an identification signal readable by the transponder reader. The identification signal includes a synchronization portion, a data portion, an output format identification portion, and an error detection portion. The output format identification portion is used by the reader to configure itself for communication with an attached controller. In another aspect of the invention, the transponder reader may be configured to read FSK as well as PSK encoded signals from the transponder.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: June 25, 2002
    Assignee: Keri Systems, Inc.
    Inventors: Kenneth Geiszler, Russel E. Walker, Kenneth Alan Whiston, Jon Kwong, Dale Lindseth
  • Cover plate for an RF identification reader
    Patent number: D417443
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: December 7, 1999
    Assignee: Keri Systems, Inc.
    Inventor: Kenneth Geiszler