Patents by Inventor Douglas M. Merz

Douglas M. Merz 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 of and apparatus for detecting the presence of data in a received signal by monitoring the spread of values to synchronize receiver
    Patent number: 5430771
    Abstract: A receiver is synchronized to a signal and the presence of data in the signal is detected by responding to the signal to derive indications of the amount of time shift necessary to achieve synchronization between the receiver and signal. The receiver is adjusted to be in synchronization with the signal in response to the time shift indications. A measure of the spread of values of the time shift indications is derived. The presence of data in the signal is flagged in response to the spread of values being less than a threshold value.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: July 4, 1995
    Assignee: Cincinnati Electronics Corporation
    Inventors: Keith A. Fix, Douglas M. Merz, Terrance J. Hill