Patents by Inventor James A. Kenemuth

James A. Kenemuth 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).

  • Data compression system
    Patent number: 4516246
    Abstract: A character base input data stream is encoded in compressed form by using a histogram of a sample of the data stream to determine the frequency of appearance of characters in the stream. A code for a character M+1 is generated in an encoder (112) to be of a length which is an inverse function of the frequency of appearance of character M+1 in the preceding M characters in the sample. Decoding can be achieved by forming a comparable sample window in a decoder (118) to which is applied an estimated index of the incoming character being decoded.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: May 7, 1985
    Assignee: Prentice Corporation
    Inventor: James A. Kenemuth