Patents by Inventor Robert E. Bledsoe

Robert E. Bledsoe 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 communication with modified Huffman coding
    Patent number: 4700175
    Abstract: A method and apparatus for compression of data includes first encoding data characters according to a relative frequency of use table for each character to produce a frequency code. This frequency code is then compressed using a modified Huffman code. The code is modified by restricting the maximum word length to a predetermined number of bits. Different types of text can be encoded according to different frequency of use tables to maximize compression efficiency for various types of source data with minimum data processing.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: October 13, 1987
    Assignee: Racal Data Communications Inc.
    Inventor: Robert E. Bledsoe
  • Data communication with modified Huffman coding
    Patent number: 4646061
    Abstract: A method and apparatus for compression of data includes first encoding data characters according to a relative frequency of use table for each character to produce a frequency code. This frequency code is then compressed using a modified Huffman code. The code is modified by restricting the maximum word length to a predetermined number of bits. Different types of text can be encoded according to different frequency of use tables to maximize compression efficiency for various types of source data with minimum data processing.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: February 24, 1987
    Assignee: Racal Data Communications Inc.
    Inventor: Robert E. Bledsoe