Patents by Inventor Alan S. Ratner

Alan S. Ratner 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: 6704449
    Abstract: A method for extracting text from images whereby the intensity of each color plane of the image is identified, the color plane with the highest intensity is converted into a black and white image, and character recognition is performed on the black and white image to determine the text of the image. The method can be used for textual word searches for Graphics Image Format (GIF) images as well as Joint Photographic Experts Group (JPEG) images, thereby providing the capability to perform text searches for images found on web pages of the World Wide Web.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: March 9, 2004
    Assignee: The United States of America as represented by the National Security Agency
    Inventor: Alan S. Ratner
  • Patent number: 5533033
    Abstract: The present invention discloses a device for and method of correcting an error in a formatted modem transmission by receiving a formatted modem transmission into a receiving modem, identifying the formatting scheme of the transmission, testing the transmission to determine if a formatting error is contained therein, generating error patterns and associated correction patterns for the receiving modem based upon the format of the transmission and the type of descrambler used in the receiving modem, searching the transmission to determine if any of the generated error patterns is found therein, and replacing any error pattern found in the transmission with its associated correction pattern.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: July 2, 1996
    Assignee: The United States of America as represented by the Director, National Security Agency
    Inventor: Alan S. Ratner