Patents Assigned to Avid Indentification Systems, Inc.
  • Variable-Q antenna coil circuit for RFID applications
    Patent number: 10812148
    Abstract: A passive radio frequency identification (RFID) reader is configured to dynamically vary the Q factor of its resonant antenna coil circuit in order to optimize its performance under different conditions. This RFID reader suitably provides optimal performance for both transponder reading and transponder writing operations, rather than being designed for optimal performance for only one operation or the other, or some fixed compromise between them.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: October 20, 2020
    Assignee: Avid Indentification Systems, Inc.
    Inventors: Gui-Yang Lu, Peter Troesch
  • Encapsulated implantable transponder
    Patent number: 5963132
    Abstract: An EID or RFID transponder having an encapsulant with an open end to allow insertion of the transponder circuitry and a phase changing material such as an epoxy used to both secure the circuitry of the transponder within the encapsulant and seal the open end of the encapsulant.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: October 5, 1999
    Assignee: Avid Indentification Systems, Inc.
    Inventor: Jay Yoakum