Patents by Inventor Ka C. Cheok

Ka C. Cheok 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).

  • Publication number: 20140333481
    Abstract: A method for locating the position of a vehicle having a transceiver. An estimate of the position of the vehicle is first determined by using at least three spaced apart receivers by performing trilateration with the three receivers. Thereafter, two of the receivers which intersect the vehicle at an angle closest to 90 degrees at a solution closest to the estimate of the vehicle position is used to perform implicit triangulation of the vehicle position using only the two receivers. The new position of the vehicle is used to update the estimated vehicle position.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 13, 2014
    Applicant: DATASPEED INC.
    Inventors: Paul Fleck, Micho Radovnikovich, Ka C. Cheok, Steve Grzebyk, Kevin Hallenbeck
  • Patent number: 8214147
    Abstract: The present invention relates to a navigation unit and base station used for determining location. A plurality of base stations are initialized to determine their location relative to each other. At the navigation unit, the time of arrival of at least one signal from each of the plurality of base stations is measured. From this, the location of the navigation unit relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: July 3, 2012
    Assignee: Nav-Track, Inc.
    Inventors: Ka C. Cheok, Gert Edzko Smid, Paul W. Fleck, Thomas P. Stiglich
  • Patent number: 8010133
    Abstract: The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations Is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: August 30, 2011
    Assignee: Nav-Track, Inc.
    Inventors: Ka C. Cheok, G. Edzko Smid
  • Patent number: 7983694
    Abstract: The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: July 19, 2011
    Assignee: Nav-Track, Inc.
    Inventors: Ka C. Cheok, G. Edzko Smid
  • Patent number: 7908041
    Abstract: The present invention includes an artificial horizon device including a sensor unit with a movable platform, at least one actuator linked to the platform, and one or more sensors located on the platform for sensing the position orientation of the platform relative to an external mass or the motion of the platform. The horizon device also includes a processing unit signally connected to the sensors and the at least one actuator. The processing unit is adapted to receive signals from the sensors and send signals to the actuators to move the platform to a horizontal orientation. The horizon device also includes either a display unit comprising an indicator of a horizon line which substantially corresponds to the horizontal orientation of the platform or a secondary device.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: March 15, 2011
    Assignee: Munro & Associates, Inc.
    Inventors: Ka C. Cheok, G. Edzko Smid
  • Patent number: 7718874
    Abstract: A guitar pick having a planar and generally triangular main body with three sides. Two sides of the main body join in a rounded nose protruding outwardly from one side. A wing extends outwardly from the top of the main body so that at least a portion of the wing lies in a plane oblique to a plane of the main body. The wing may be curvilinear in shape or include plural planar sections.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 18, 2010
    Inventor: Ka C. Cheok
  • Publication number: 20090217797
    Abstract: A guitar pick having a planar and generally triangular main body with three sides. Two sides of the main body join in a rounded nose protruding outwardly from one side. A wing extends outwardly from the top of the main body so that at least a portion of the wing lies in a plane oblique to a plane of the main body. The wing may be curvilinear in shape or include plural planar sections.
    Type: Application
    Filed: February 25, 2009
    Publication date: September 3, 2009
    Inventor: Ka C. Cheok
  • Publication number: 20080262669
    Abstract: The present invention relates to a controller for providing a vehicle with autonomous control. The controller preferably provides path planning to an autonomous vehicle.
    Type: Application
    Filed: September 19, 2007
    Publication date: October 23, 2008
    Inventors: Edzko Smid, Paul Fleck, Ka C. Cheok, Tom Stiglich
  • Publication number: 20080234930
    Abstract: The present invention relates to a navigation unit and base station used for determining location. A plurality of base stations are initialized to determine their location relative to each other. At the navigation unit, the time of arrival of at least one signal from each of the plurality of base stations is measured. From this, the location of the navigation unit relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Inventors: Ka C. Cheok, Gert Edzko Smid, Paul W. Fleck, Thomas P. Stiglich
  • Patent number: 7403783
    Abstract: The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations Is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: July 22, 2008
    Assignee: Jadi, Inc.
    Inventors: Ka C. Cheok, G. Edzko Smid
  • Publication number: 20080167051
    Abstract: The present invention relates to a method of determining the location of a target. The method includes initializing a set of base stations to determine their location relative to each other. At the target, the time of arrival of at least one signal from each of the plurality of base stations Is measured. From this, the location of the target relative to the plurality of base stations may be directly calculated using a closed solution. In one embodiment, a time of arrival technique is used and in another embodiment a time difference of arrival technique is used. Preferably an ultra-wide band frequency is utilized.
    Type: Application
    Filed: March 21, 2008
    Publication date: July 10, 2008
    Applicant: Jadi Inc.
    Inventors: Ka C. Cheok, G. Edzko Smid
  • Patent number: 6898528
    Abstract: A collision and injury mitigation system (10) for an automotive vehicle (12) is provided. The system (10) includes two or more object detection sensors (15) that detect an object and generate one or more object detection signals. A controller (16) is electrically coupled to the two or more object detection sensors and performs a fuzzy logic technique to classify the object as a real object or a false object in response to the one or more object detection signals. A method for performing the same is also provided.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 24, 2005
    Assignee: Ford Global Technologies, LLC
    Inventors: Nicholas Zorka, Ka C. Cheok, Manoharprasad K. Rao, Edzko Smid
  • Publication number: 20040019425
    Abstract: A collision and injury mitigation system (10) for an automotive vehicle (12) is provided. The system (10) includes two or more object detection sensors (15) that detect an object and generate one or more object detection signals. A controller (16) is electrically coupled to the two or more object detection sensors and performs a fuzzy logic technique to classify the object as a real object or a false object in response to the one or more object detection signals. A method for performing the same is also provided.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Nicholas Zorka, Ka C. Cheok, Manoharprasad K. Rao, Edzko Smid
  • Patent number: 6532419
    Abstract: A navigation system includes a multi-axis accelerometer which can be installed in the vehicle in any unknown orientation. The orientation of the axes of the accelerometer is automatically determined by the navigation system. The signals from the accelerometer are then used to propagate the position of the vehicle.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: March 11, 2003
    Assignee: Magellan DIS, Inc.
    Inventors: John David Begin, Ka C. Cheok