Patents by Inventor J. Page

J. Page 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: 6204947
    Abstract: An array antenna is steered by moving two sets of optical fibers of different optical lengths between a number of light signal sources and an array antenna. By changing the lengths of the optical paths of the different light signal sources, the wave front can be steered. The light signal traverses five sections of optical delay lines with at least two selectable optical lengths. One set of selectable optical lengths provides coarse adjustment of steering, and a second set of selectable optical lengths provides fine adjustment of steering. The coarse adjustment is implemented by using a larger increment of selectable optical lengths between adjacent optical lengths than the increment for the fine adjustment. The antenna can serve both for a transmitter or a receiver.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 20, 2001
    Inventor: Derrick J Page
  • Patent number: 6097292
    Abstract: A fast data transfer collection system using message authentication and contactless RF proximity card technology in non-contact storage and retrieval applications. The system is generally comprised of Host computers (application computer systems), Target radio frequency (RF) terminals, and a plurality of portable Tags ("smart" or "proximity" cards). A Host provides specific application functionality to a Tag holder, with a high degree of protection from fraudulent use. A Target provides control of the RF antenna and resolves collisions between multiple Tags in the RF field. A Tag provides reliable, high speed, and well authenticated secure exchanges of data/information with the Host resulting from the use of a custom ASIC design incorporating unique analog and digital circuits, nonvolatile memory, and state logic. Each Tag engages in a transaction with the Target in which a sequence of message exchanges allow data to be read(written) from(to) the Tag.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 1, 2000
    Assignee: Cubic Corporation
    Inventors: Guy M. Kelly, Kevin J. Page, Don P. Plum, Joseph V J Ravenis, II
  • Patent number: 6010074
    Abstract: A collision resolution system and method for enhanced non-contact automated data collection. The data collection system generally includes a plurality of portable fare tags or token ("smart") cards and a stationary target terminal. Each tag exchanges a series of messages with the target terminal to establish a communication link for the transfer of financial or other data. Concurrently, each tag and the target terminal process the messages to provide collision resolution, thereby ensuring that only one tag, at any instance, establishes the communication link with the target.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: January 4, 2000
    Assignee: Cubic Corporation
    Inventors: Guy M. Kelly, Kevin J. Page, Don P. Plum, Joseph V J Ravenis, II
  • Patent number: 6002365
    Abstract: An array antenna is steered by changing the time delays of a local oscillator signal feeding a number of mixers, each fed by an individual antenna element. The beat frequency thus produced can be made in-phase by compensating time delays of different antenna elements in the array with different delays from the local oscillator. The delays from the local oscillator are obtained with optical fibers of variable lengths.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: December 14, 1999
    Inventor: Derrick J. Page
  • Patent number: 5923291
    Abstract: An array antenna is steered by moving a set of optical fibers of different optical length between a number of light signal sources and an array of antennas. By changing the lengths of the optical paths of the different light signals sources, the wave front can be steered. The light signal traverses three sections of optical delay lines with at least one selectable optical length. In the first section, light signal from a point source travels through a first optical delay line and a lens to diverge and collimate the light beam with increased cross section. The collimated light beam is focused by second lens and incident one second optical line of selectable optical length. The light beam exiting from the other end of the second optical line is collimated again by a third lens to face a third optical line. The collimated light exiting from the second optical line is focused again by a fourth lens to feed the third optical line, which is connected at the other end to one element of the antenna array.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: July 13, 1999
    Inventor: Derrick J. Page
  • Patent number: 5856805
    Abstract: An array antenna is steered by moving a set of optical filters of different optical lengths between a number of light signal sources and an array antenna elements. By changing the lengths, hence the time delays, of a plurality of the signal paths between the light signal source and the antenna array elements, the wave front can be steered. Each delay path comprises a selected fiber optic line and a fixed electrical delay line. In one embodiment the fiber optical lines assume a parabolic distribution in time delay. In another embodiment, the fiber optical lines assume a cosinusoidal distribution in time delay. Signals are fed to the fiber optic path through a laser diode and exit from the path through a photo-diode. The fiber optic lines are mounted on a rotatable disk, with two ends diametrically located at two different radii.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: January 5, 1999
    Inventor: Derrick J. Page
  • Patent number: 5821743
    Abstract: A magnetostrictive waveguide position measuring apparatus includes a waveguide extending between opposed anchored ends. A magnet is displaceable along the waveguide and generates torsional strain in the waveguide in response to an electrical excitation signal transmitted along the waveguide. A piezoceramic element sensor is coupled to the waveguide to sense the torsional strain signal on the waveguide. A signal processor determines the relative elapsed time between the excitation signal and the output signal of the piezoceramic element to determine the position of the magnet along the waveguide. The sensor is coupled to the waveguide by a low resonance coupling medium.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: October 13, 1998
    Assignee: Patriot Sensors & Control Corporation
    Inventors: William J. Page, Jr., Richard D. Koski
  • Patent number: D389827
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: January 27, 1998
    Assignee: Motorola, Inc.
    Inventors: Glen A. Oross, Michael J. Page, Frank M. Tyneski
  • Patent number: D393638
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: April 21, 1998
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Ram Levinson
  • Patent number: D406833
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 16, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Bruce A. Claxton, Frank M. Tyneski, David H. Karl
  • Patent number: D407367
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 30, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, David H. Karl, William C. Phelps, III
  • Patent number: D407406
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 30, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Bruce A. Claxton
  • Patent number: D408811
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: April 27, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Bruce A. Claxton, Frank M. Tyneski, David H. Karl
  • Patent number: D411536
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: June 29, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Bruce A. Claxton, Frank M. Tyneski, David H. Karl
  • Patent number: D413104
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: August 24, 1999
    Assignee: Motorola, Inc.
    Inventors: James H. Curtis, Dave Karl, Michael J. Page
  • Patent number: D415767
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: October 26, 1999
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Scott H. Richards
  • Patent number: D416252
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: November 9, 1999
    Assignee: Motorola, Inc.
    Inventors: Andreas Haase, Frank M. Tyneski, Michael J. Page
  • Patent number: D419154
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: January 18, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael J. Page, Scott Richards
  • Patent number: D419552
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: January 25, 2000
    Assignee: Motorola, Inc.
    Inventors: Paige M. Passman, Michael J. Page, Joseph R. Rauch
  • Patent number: D435027
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: December 12, 2000
    Assignee: Motorola, Inc.
    Inventors: Monika R. Wolf, Michael J. Page, John B. Ledingham, Donald W. Burnette