Patents by Inventor Gilbert La Vean

Gilbert La Vean 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).

  • CDMA cellular hand-off apparatus and method
    Patent number: 5345467
    Abstract: An apparatus for controlling hand-off in a spread-spectrum-CDMA-communications system, for radio devices moving from one cell to another, with each cell having a base station transmitting spread spectrum signals with generic-chip-code signals. A radio device includes a cellular antenna, matched filters, and detectors for detecting generic-chip-code signals embedded in spread-spectrum-communications signals. A comparator generates a comparison signal by comparing the relative time of arrival of a second detected signal with a first detected signal. A receiver-message-chip-code generator generates a replica of the message-chip-code signal, and a message mixer despreads the spread-spectrum-communications signal.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: September 6, 1994
    Assignee: InterDigital Technology Corp.
    Inventors: Gary R. Lomp, Gilbert La Vean, Donald L. Schilling