Patents by Inventor Fredric W. Ritchey

Fredric W. Ritchey 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: 6091777
    Abstract: A cost effective continuously adaptive digital video system and method for compressing color video data for moving images. The method describes capturing an analog video frame and digitizing the image into a preferred source input format for compression using a combination of unique lossy and lossless digital compression techniques including subband coding, wavelet transforms, motion detection, run length coding and variable length coding. The system includes encoder and decoder (CODEC) sections for compression and decompression of visual images to provide high compression with good to excellent video quality. The compressed video data provides a base video layer and additional layers of video data that are multiplexed with compressed digital audio to provide a data stream that can be packetized for distribution over inter or intranets, including wireless networks over local or wide areas.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: July 18, 2000
    Assignee: Cubic Video Technologies, Inc.
    Inventors: William N. Guetz, Keshoolal Bakhru, Fredric W. Ritchey