Patents by Inventor Tom Houtman

Tom Houtman 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: 8817603
    Abstract: In a satellite-based messaging system messages are exchanged between a ground station and mobile terminals over a wide geographic area covered by multiple satellite beams. Each beam contains one or more carrier frequencies. A message processing center is configured to provision a frame comprising a plurality of subframes to carry data over a forward link to the mobile terminals; hop between beams in the forward link and assign each subframe within a frame to a specific satellite beam; provision a transport medium in the form of virtual carriers each defined by one or more carrier frequency/beam hop combinations, wherein each virtual carrier is assigned a unique virtual carrier identifier; and notify the mobile terminals of carrier frequency/hop combinations for assigned virtual carrier identifiers.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 26, 2014
    Assignee: Skywave Mobile Communications Inc.
    Inventors: Tom Houtman, Brian Armbruster, Ron Territo, Zhenhong Cheng, Wayne McPherson, Sean Faulkner
  • Publication number: 20130021900
    Abstract: In a satellite-based messaging system messages are exchanged between a ground station and mobile terminals over a wide geographic area covered by multiple satellite beams. Each beam contains one or more carrier frequencies. A message processing center is configured to provision a frame comprising a plurality of subframes to carry data over a forward link to the mobile terminals; hop between beams in the forward link and assign each subframe within a frame to a specific satellite beam; provision a transport medium in the form of virtual carriers each defined by one or more carrier frequency/beam hop combinations, wherein each virtual carrier is assigned a unique virtual carrier identifier; and notify the mobile terminals of carrier frequency/hop combinations for assigned virtual carrier identifiers.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 24, 2013
    Applicant: 2201028 ONTARIO INC.
    Inventors: Tom Houtman, Brian Armbruster, Ron Territo, Zhenhong Cheng, Wayne McPherson, Sean Faulkner
  • Patent number: 7456785
    Abstract: A method of acquiring signals from satellites in a Global Positioning System (GPS) is disclosed.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: November 25, 2008
    Assignee: Transcore Link Logistics Corporation
    Inventor: Tom Houtman
  • Publication number: 20080122692
    Abstract: A method of acquiring signals from satellites in a Global Positioning System (GPS) is disclosed.
    Type: Application
    Filed: August 21, 2007
    Publication date: May 29, 2008
    Inventor: Tom Houtman
  • Patent number: 7136445
    Abstract: A method is disclosed for tracking the phase of a received phase-modulated carrier carrying a sequence of symbols represented by phase jumps in a low signal-to-noise ratio environment. An input sequence of symbols stored in a delay line. The phase of a current symbol in a phase locked loop, and the phase error detected in the phase locked loop is updated to take into account phase error estimates of future symbols.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: November 14, 2006
    Assignee: Transcore Link Logistics Corporation
    Inventor: Tom Houtman
  • Patent number: 6679367
    Abstract: An over-running clutch assembly for an automotive transmission comprises an outer race having a cylindrical inner surface and an inner race engaged with a drop shaft of the transmission and having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element to bias the roller clutch to a disengaged position; and an actuator to selectively overcome the biasing element to engage the roller clutch and lock the outer race and inner race and prevent relative rotation between the outer race and inner race, thereby preventing rotation of the drop shaft and movement of the automobile.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: January 20, 2004
    Assignee: NTN Corporation
    Inventors: Richard D. Baker, Russell E. Monahan, Tom Houtman, Shiro Goto
  • Publication number: 20030226415
    Abstract: An over-running clutch assembly for an automotive transmission comprises an outer race having a cylindrical inner surface and an inner race engaged with a drop shaft of the transmission and having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element to bias the roller clutch to a disengaged position; and an actuator to selectively overcome the biasing element to engage the roller clutch and lock the outer race and inner race and prevent relative rotation between the outer race and inner race, thereby preventing rotation of the drop shaft and movement of the automobile.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Applicant: NTN Corporation
    Inventors: Richard D. Baker, Russell E. Monahan, Tom Houtman, Shiro Goto
  • Publication number: 20030027529
    Abstract: Disclosed is an apparatus for improving efficiency in a two-way wireless digital communications system. A predictor predicts the quality of a return link from a remote terminal to a central station from one or more parameters known at the remote terminal. A processor determines an appropriate transmission characteristic for said return link based on said predicted quality. An adjustor adjusts an actual transmission characteristic of said return link to match said appropriate transmission characteristic.
    Type: Application
    Filed: July 19, 2002
    Publication date: February 6, 2003
    Inventors: Hans Haugli, Tom Houtman
  • Publication number: 20030016767
    Abstract: A method is disclosed for tracking the phase of a received phase-modulated carrier carrying a sequence of symbols represented by phase jumps in a low signal-to-noise ratio environment. An input sequence of symbols stored in a delay line. The phase of a current symbol in a phase locked loop, and the phase error detected in the phase locked loop is updated to take into account phase error estimates of future symbols.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 23, 2003
    Inventor: Tom Houtman