Patents by Inventor Richard A. Sonnentag

Richard A. Sonnentag 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).

  • Method and apparatus for time aligning signals for reception in a code-division multiple access communication system
    Patent number: 5446727
    Abstract: A coherent reverse channel, a per-chip spreading function, orthogonal spreading functions and a time alignment of all traffic channels are implemented such that the main signal of each channel arrives at a base-station within a fraction of a chip of one another in accordance with the invention. With this, the orthogonality among all channels is maintained, and, when demodulated, all channels except the channel of interest provides a cross-correlation of substantially zero with respect to the remaining signals.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: August 29, 1995
    Assignee: Motorola Inc.
    Inventors: Eugene J. Bruckert, Richard A. Sonnentag