Patents by Inventor Cindy Seiffert

Cindy Seiffert 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: 4665436
    Abstract: A method and apparatus for compressing digital data for transmission and reception in a narrow bandwidth, the method comprising preliminarily smoothing raw data according to a spatial convolution or running average technique, sampling the convoluted or averaged data to produce a subset having information from the full set of raw data, but fewer data points, determining the energy of the subset with a transform coder, encoding the transformed image, predicting the full set of raw data points at and between the points in the subset by means of a prediction algorithm, subtracting the raw data from the thus-predicted values to develop a difference signal, encoding one field of the difference signal and transmitting the encoded transformed data and the encoded difference signal to a receiver employing the same prediction algorithm. The signal is decoded in the receiver to produce both the transformed image and the difference signal.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: May 12, 1987
    Inventors: Joseph A. Osborne, Cindy Seiffert