Patents by Inventor David L. Carlstrom

David L. Carlstrom 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).

  • Pixel hashing image recognition system
    Patent number: 5875264
    Abstract: A character recognition system employs a "hashing" technique of imaged pixels wherein a digital image constituting an array of pixels is divided into a series of sub-arrays. The sub-array digital signal patterns themselves correspond directly to addresses in associated system memories. Each memory address indicates a predetermined set of the possible characters. There is an apparatus for combining the list of possible characters so that signals corresponding to only one character are output.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 23, 1999
    Assignee: Kaman Sciences Corporation
    Inventor: David L. Carlstrom