Patents by Inventor John B. Thielens

John B. Thielens 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: 5915041
    Abstract: The present invention relates to a method and apparatus for performing decoding of variable length data. It is particularly effective when decoding data encoded with a Huffman or such similar encoding method. The invention employs a plurality of decoding tables which permits a fixed length of bits to be decoded in a minimum number of indexes for the size of the index. Each table is constructed such that the given node indicates whether a unique character has been decoded or whether further decoding is necessary.For data which is encoded in a manner similar to a Huffman code, a properly constructed table will yield the frequently used characters on a single index. Only less frequently used characters require multiple indexes into the plurality of tables.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: June 22, 1999
    Assignee: Unisys Corporation
    Inventor: John B. Thielens
  • Patent number: 5666139
    Abstract: A pen-based computer copy editing apparatus includes a pressure sensitive screen for displaying original text having page breaks thereon; a pen for writing on the screen by applying pressure thereon; and a CPU for (a) identifying handwriting and gestures corresponding to insertions and deletions of portions of the original text and identifying the insertion of typesetting codes and author queries, in response to pressure applied by the pen on the screen, (b) controlling the screen to display the inserted text corresponding to the handwriting in a handwritten font different from the typewritten font already displayed on the screen such that the inserted text is discernable from screen text in the typewritten font, (c) controlling the screen to display the deleted text in the typewritten font with a strike-out therethrough, such that the deleted text is discernable from unmodified screen text in the typewritten font, (d) controlling the screen to display the typesetting codes in a particular font, (e) controlli
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: September 9, 1997
    Assignee: Advanced Pen Technologies, Inc.
    Inventors: John B. Thielens, Mitchell Farbstein, Robert Tebbenhoff, Clifford L. Martin, Francis A. Landau, Jr.