Patents by Inventor Michael A. Savage

Michael A. Savage 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 fast secure session establishment on half-duplex point-to-point voice cellular network channels
    Patent number: 7747021
    Abstract: Methods and apparatus are provided for secure communication techniques in a communication system. The system can include a first device which communicates with a second device over a channel. A security association can be established during a first session between the devices via an asymmetric key exchange. The security association comprises a Traffic Encryption Key (TEK) and a first state vector. The TEK comprises a shared, secret symmetric key. The security association is stored in each of the devices for use during a second session between the devices to expedite security association establishment during call set-up of the second session. The security association can be associated with the second device in the first device, and with the first device in the second device. An updated state vector can be generated at the first device. A second session can be established between the first device and the second device by using the TEKs from the first session and the updated state vector.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: June 29, 2010
    Assignees: General Dynamics C4 Systems, Inc., Motorola, Inc.
    Inventors: Ty B. Lindteigen, Bernard R. McKibben, William C. Neubauer, III, Jerry D. Ray, Michael A. Savage, Bryce Sutherland, Barbara S. Winterfield, Keith M. Klug, Stuart S. Kreitzer, Brent M. McKay, Bradley J. Rainbolt, Fred R. Villa, Marc A. Boillot
  • Method and apparatus for rapid secure session establishment on half-duplex AD-hoc group voice cellular network channels
    Patent number: 7643817
    Abstract: Techniques are provided for secure group communications in a wireless dispatch system which includes a group of devices. The group of devices can include a first secure device which communicates with a plurality of second secure devices over a channel.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: January 5, 2010
    Assignees: General Dynamics C4 Systems, Inc., Motorola, Inc.
    Inventors: Keith M. Klug, Stuart S. Kreitzer, Brent M. McKay, Bradley J. Rainbolt, Fred R. Villa, Marc A. Boillot, Ty B. Lindteigen, Bernard R. McKibben, William C. Neubauer, III, Jerry D. Ray, Michael A. Savage, Bryce Sutherland, Barbara S. Winterfield
  • Telecommunications security module
    Patent number: 5524134
    Abstract: A security module for use in a cellular telephone provides for low power consumption. The security module includes a vocoder processor for manipulating signals from the telephone's microphone and to the telephone's ear piece; an encryption engine; a modem processor for controlling transmitted and received data from the cellular telephone; and a security system controller. The processors consume virtually no power when the phone is in the standby mode and very little power to produce encrypted communication when the cellular phone is operational.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: June 4, 1996
    Assignee: Motorola, Inc.
    Inventors: David T. Gustafson, Michael A. Savage, Paul R. Kennedy, Joseph Kish, III, Bruce A. Fette
  • Electronic keying scheme for locking data
    Patent number: 4944008
    Abstract: A data locking system which modifies data in accordance with a renewable key variable derived from the exclusive ORing of a pseudorandom combination number from an external source means with an altered key variable.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: July 24, 1990
    Assignee: Motorola, Inc.
    Inventors: Gerald V. Piosenka, William R. Worger, Michael A. Savage