Patents by Inventor R. Timothy Edwards

R. Timothy Edwards 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).

  • Methods and apparatus for acoustic transient processing
    Patent number: 6389377
    Abstract: Method and apparatus for using current-mode analog circuits to compute the correlation between an auditory input signal in the time-frequency domain and a stored binary template. By using massively parallel computation, circuits made of relatively imprecise analog components are able to accurately classify transient events, are competitive with high-performance DSP systems, and operate with much smaller power requirements.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: May 14, 2002
    Assignee: The Johns Hopkins University
    Inventors: Fernando J. Pineda, Gert Cauwenberghs, R. Timothy Edwards
  • Analog wavelet transform circuitry
    Patent number: 5495554
    Abstract: An analog circuit implementing a continuous wavelet transform forms a multiplicity of analog wavelet outputs. These analog wavelet outputs can be used for data compression. This analog circuit is estimated to be about one-hundredth (1/100) the size and power of a digital wavelet transform circuit. Additionally, the analog wavelet outputs of the analog wavelet transform chip is directly determined without the loss of information due to the digital sampling.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: February 27, 1996
    Assignee: Zilog, Inc.
    Inventors: R. Timothy Edwards, Michael D. Godfrey