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).
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Publication number: 20140333481Abstract: 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: ApplicationFiled: May 1, 2014Publication date: November 13, 2014Applicant: DATASPEED INC.Inventors: Paul Fleck, Micho Radovnikovich, Ka C. Cheok, Steve Grzebyk, Kevin Hallenbeck
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Patent number: 8214147Abstract: 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: GrantFiled: March 21, 2008Date of Patent: July 3, 2012Assignee: Nav-Track, Inc.Inventors: Ka C. Cheok, Gert Edzko Smid, Paul W. Fleck, Thomas P. Stiglich
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Patent number: 8010133Abstract: 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: GrantFiled: January 3, 2008Date of Patent: August 30, 2011Assignee: Nav-Track, Inc.Inventors: Ka C. Cheok, G. Edzko Smid
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Patent number: 7983694Abstract: 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: GrantFiled: March 21, 2008Date of Patent: July 19, 2011Assignee: Nav-Track, Inc.Inventors: Ka C. Cheok, G. Edzko Smid
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Patent number: 7908041Abstract: 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: GrantFiled: April 29, 2005Date of Patent: March 15, 2011Assignee: Munro & Associates, Inc.Inventors: Ka C. Cheok, G. Edzko Smid
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Patent number: 7718874Abstract: 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: GrantFiled: February 25, 2009Date of Patent: May 18, 2010Inventor: Ka C. Cheok
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Publication number: 20090217797Abstract: 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: ApplicationFiled: February 25, 2009Publication date: September 3, 2009Inventor: Ka C. Cheok
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Publication number: 20080262669Abstract: 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: ApplicationFiled: September 19, 2007Publication date: October 23, 2008Inventors: Edzko Smid, Paul Fleck, Ka C. Cheok, Tom Stiglich
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Publication number: 20080234930Abstract: 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: ApplicationFiled: March 21, 2008Publication date: September 25, 2008Inventors: Ka C. Cheok, Gert Edzko Smid, Paul W. Fleck, Thomas P. Stiglich
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Patent number: 7403783Abstract: 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: GrantFiled: February 17, 2005Date of Patent: July 22, 2008Assignee: Jadi, Inc.Inventors: Ka C. Cheok, G. Edzko Smid
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Publication number: 20080167051Abstract: 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: ApplicationFiled: March 21, 2008Publication date: July 10, 2008Applicant: Jadi Inc.Inventors: Ka C. Cheok, G. Edzko Smid
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Patent number: 6898528Abstract: 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: GrantFiled: July 23, 2002Date of Patent: May 24, 2005Assignee: Ford Global Technologies, LLCInventors: Nicholas Zorka, Ka C. Cheok, Manoharprasad K. Rao, Edzko Smid
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Publication number: 20040019425Abstract: 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: ApplicationFiled: July 23, 2002Publication date: January 29, 2004Inventors: Nicholas Zorka, Ka C. Cheok, Manoharprasad K. Rao, Edzko Smid
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Patent number: 6532419Abstract: 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: GrantFiled: September 23, 1998Date of Patent: March 11, 2003Assignee: Magellan DIS, Inc.Inventors: John David Begin, Ka C. Cheok