Patents by Inventor Zengqi Yu

Zengqi Yu 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).

  • System and method for extending performance of media cartridge RF identification
    Patent number: 7327264
    Abstract: A method of extending media cartridge radio frequency identification (RFID) performance physical range includes mounting a plurality of passive antenna couplers in a first sending/receiving device, connecting the couplers to a radio transmitter/receiver in the first sending/receiving device, and communicating wirelessly between the first sending/receiving device and a second radio transmitter/receiver in a second sending/receiving device within a predetermined physical range.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: February 5, 2008
    Assignee: Storage Technology Corporation
    Inventors: Larry Stephen Mitchell, William Carl Dodt, Zengqi Yu
  • System and method for locked code on a radio frequency identification tag
    Patent number: 7316352
    Abstract: A radio frequency identification (RFID) tag system includes a coupler/controller subsystem and a memory. The coupler/controller subsystem wirelessly receives and transmits at least one user signal and at least one master signal. The memory is electrically coupled to the coupler/controller subsystem. The memory includes a user portion for storing information contained in the at least one user signal and a master portion for storing information contained in the at least one master signal, and the master portion of the memory is unalterable by a user.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: January 8, 2008
    Assignee: Storage Technology Corporation
    Inventors: William Carl Dodt, Zengqi Yu