Patents by Inventor Julian H. Van Wyngaarden

Julian H. Van Wyngaarden 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).

  • Adaptive threshold adjustment method and apparatus
    Patent number: 4771188
    Abstract: A method and apparatus for instantaneously adjusting the threshold level for amplitude qualification in a signal peak detection system. Two threshold levels are provided, an upper threshold level and a lower threshold level. As the input signal level exceeds a first qualifying value, the amplitude threshold is set to the lower threshold level. If the input signal continues to increase and exceeds a second qualifying value higher than the first qualifying value, the amplitude threshold is set to the upper threshold level.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: September 13, 1988
    Inventors: Jyi-Min Cheng, Julian H. Van Wyngaarden