Patents by Inventor Erik De Witte

Erik De Witte 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 (RFID) tag antenna design
    Patent number: 7800503
    Abstract: In certain embodiments, a hybrid radio frequency identification (RFID) tag includes circuitry, a battery, and a first antenna. The circuitry includes one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems. The battery is coupled to the one or more semi-active elements. The first antenna is coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area. The circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna, and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: September 21, 2010
    Assignee: Axcess International Inc.
    Inventors: Erik De Witte, Paul V. Brennan, Philip S. Royston, Rajinder Bridgelall
  • Radio Frequency Identification (RFID) Tag Antenna Design
    Publication number: 20080042850
    Abstract: In certain embodiments, a hybrid radio frequency identification (RFID) tag includes circuitry, a battery, and a first antenna. The circuitry includes one or more passive RFID elements and one or more semi-active RFID elements operable to transmit and receive communications to and from one or more RFID tag tracking systems. The battery is coupled to the one or more semi-active elements. The first antenna is coupled to the passive RFID elements and to the semi-active RFID elements, the first antenna comprising a shape that defines a first open area and a second open area. The circuitry is positioned within one of the first and second open areas defined by the shape of the first antenna, and the battery is positioned within the other of the first and second open areas defined by the shape of the first antenna.
    Type: Application
    Filed: May 11, 2007
    Publication date: February 21, 2008
    Applicant: Axcess International Inc.
    Inventors: Erik De Witte, Paul Brennan, Philip Royston, Rajinder Bridgelall