Patents by Inventor Barbara Winterfield

Barbara Winterfield 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).

  • Method and apparatus for rapid secure session establishment on half-duplex AD-hoc group voice cellular network channels
    Publication number: 20060281480
    Abstract: An apparatus (213) and corresponding methods (FIG. 7) to facilitate maintaining crypto synchronization while processing communication signals in a communication unit includes a vocoder (215) configured to convert input audio band signals to vocoder output frames; a crypto processor (217) configured to encrypt the vocoder output frames to provide encrypted output frames; and a synchronizer (219) configured to substitute in a predetermined manner synchronization information corresponding to an encryption state of the crypto processor for a portion of the encrypted data in a portion of the encrypted output frames to provide resultant output synchronization frames suitable for synchronizing a decryption process at a target communication unit.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 14, 2006
    Inventors: Keith Klug, Stuart Kreitzer, Brent McKay, Bradley Rainbolt, Fred Villa, Marc Boillot, Ty Lindteigen, Bernard McKibben, William Neubauer, Jerry Ray, Michael Savage, Bryce Sutherland, Barbara Winterfield
  • Method and apparatus for fast secure session establishment on half-duplex point-to-point voice cellular network channels
    Publication number: 20060269065
    Abstract: An apparatus (213) and corresponding methods (FIG. 7) to facilitate maintaining crypto synchronization while processing communication signals in a communication unit includes a vocoder (215) configured to convert input audio band signals to vocoder output frames; a crypto processor (217) configured to encrypt the vocoder output frames to provide encrypted output frames; and a synchronizer (219) configured to substitute in a predetermined manner synchronization information corresponding to an encryption state of the crypto processor for a portion of the encrypted data in a portion of the encrypted output frames to provide resultant output synchronization frames suitable for synchronizing a decryption process at a target communication unit.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 30, 2006
    Inventors: Ty Lindteigen, Bernard McKibben, William Neubauer, Jerry Ray, Michael Savage, Bryce Sutherland, Barbara Winterfield, Keith Klug, Stuart Kreitzer, Brent McKay, Bradley Rainbolt, Fred Villa, Marc Boillot