Patents by Inventor Raymond E. Nielsen

Raymond E. Nielsen 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).

  • Patent number: 4370574
    Abstract: A slowly varying bias signal is added to one input of a Wave Form Transition Sequence Detector, as more fully described in a related application cited herein, to provide a differential output therefrom which is directly proportional to the time between transitions occurring on two input wave forms. The slowly varying bias modulates the level of one input wave form, and thereby varies the time required for the Wave Form Transition Detector to detect a transition occuring thereon. By symmetrically varying the response time of the Wave Form Transition Sequence Detector to one input wave form in the neighborhood of the occurrence of a transition on the second input waveform, the average differential output of the Wave Form Transition Sequence Detector over a cycle of the slowly varying bias level will be proportional to the time between transitions occurring on the two input wave forms.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: January 25, 1983
    Assignee: Honeywell Information Systems Inc.
    Inventor: Raymond E. Nielsen