Patents by Inventor Darrell Pinson

Darrell Pinson 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).

  • Token passing protocol for RFID systems
    Patent number: 7714697
    Abstract: Methods, systems and apparatuses for RFID readers forming a reader network are described. In an aspect of the present invention, a plurality of RFID readers are configured to interrogate tags. Furthermore, the readers are configured to communicate with one another by transferring a token, represented by a signal. Possession of the token enables the reader to access a RF communications medium. Readers can be arranged in a ring configuration, and interconnected via wired links. A secondary token may circulate in the ring in addition to the primary token, to ensure redundancy in the system. A reader waits for a predetermined time interval before accessing the RF communications medium.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: May 11, 2010
    Assignee: Symbol Technologies, Inc.
    Inventors: Mohammad Soleimani, Victor Hugo Molina, Martin Strzelczyk, Mark Duron, Ron Boschini, Jens Arnold, Darrell Pinson