Patents by Inventor Ryan N. Milbrandt

Ryan N. Milbrandt 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).

  • RFID system having a field reprogrammable RFID reader
    Patent number: 7124943
    Abstract: An RFID system includes a first RFID reader storing old reader programming, a plurality of RFID administrator transponders, and new reader programming. The new reader programming is divided into a plurality of segments. Each RFID administrator transponder has an administrator transponder memory, which stores a new revision identifier correlated to the new programming, a different segment of new reader programming, and a correlated programming segment identifier. The RFID system further includes first, second and third writing means. The first writing means writes the segment of new reader programming stored in each administrator transponder memory to the first RFID reader, thereby enabling the first RFID reader to reprogram itself with the new reader programming. The second writing means writes one of the segments of new reader programming stored in the first RFID reader to a user transponder memory.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: October 24, 2006
    Assignee: Assa Abloy Identification Technology Group AB
    Inventors: Ralph W. Quan, Ryan N. Milbrandt