Patents by Inventor Min Chin Chai
Min Chin Chai 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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Patent number: 9705495Abstract: An embodiment of a capacitive sensor array may comprise a first plurality of sensor elements and a second sensor element comprising a main trace that intersects each of the first plurality of sensor elements to form a plurality of intersections. A unit cell may be associated with each of the intersections, and each unit cell may designate a set of locations nearest to a corresponding intersection. A contiguous section of the main trace may cross at least one of the plurality of unit cells. The capacitive sensor array may further comprise a plurality of open zones, where each of the plurality of open zones is staggered relative to an adjacent open zone.Type: GrantFiled: September 28, 2011Date of Patent: July 11, 2017Assignee: Creator Technology B.V.Inventors: Min Chin Chai, Patrick Prendergast, Massoud Badaye
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Patent number: 9513755Abstract: A sensor array includes a first sensor element of a unit cell and a second sensor element of the unit cell. The unit cell includes core traces of the first sensor element, where the core traces are the widest portion of the first sensor element. The unit cell includes main traces of the second sensor element and subtraces of the second sensor element, where each main trace crosses the first sensor element at a corresponding bridge to form an intersection of the unit cell.Type: GrantFiled: December 1, 2014Date of Patent: December 6, 2016Assignee: Creator Technology B.V.Inventors: Min Chin Chai, Patrick Prendergast, Tao Peng
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Patent number: 9201106Abstract: A self-shielding capacitive sensor array may include a first plurality of sensor elements and a second plurality of sensor elements, where each of the second plurality of sensor elements intersects each of the first plurality of sensor elements, such that each of the first plurality of sensor elements may be capacitively coupled with each of the second plurality of sensor elements. The first plurality of sensor elements may be configured to shield each of the second plurality of sensor elements from a noise source.Type: GrantFiled: June 20, 2013Date of Patent: December 1, 2015Assignee: PARADE TECHNOLOGIES, LTD.Inventors: Min Chin Chai, Fred Keiser, Igor Polishchuk
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Patent number: 9116581Abstract: A capacitive sense array configured to improve edge accuracy in detecting a presence of a conductive object is described. In one embodiment, a capacitive sense array includes at least a first set of sense elements having non-homogenous pitches disposes in a first longitudinal axis of the capacitive sense array. The pitch includes width of the sense elements and spacing between the sense elements.Type: GrantFiled: September 1, 2011Date of Patent: August 25, 2015Assignee: Cypress Semiconductor CorporationInventors: Tao Peng, Min Chin Chai
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Publication number: 20150193050Abstract: A sensor array includes a first sensor element of a unit cell and a second sensor element of the unit cell. The unit cell includes core traces of the first sensor element, where the core traces are the widest portion of the first sensor element. The unit cell includes main traces of the second sensor element and subtraces of the second sensor element, where each main trace crosses the first sensor element at a corresponding bridge to form an intersection of the unit cell.Type: ApplicationFiled: December 1, 2014Publication date: July 9, 2015Inventors: Min Chin Chai, Patrick Prendergast, Tao Peng
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Patent number: 8952892Abstract: One or more input location correction tables are used to compensate for interference introduced into input panels and generate a corrected location based on a sensed location of the input panel. The one or more input location correction tables can include a coarse table and a fine table that stores mappings of intermediate locations mapped to by the coarse table having an accuracy that fails to satisfy a threshold coordinate accuracy. Different environments in which computing device can be situated can result in different interference being introduced, and the one or more input location correction tables can be updated based on the current environment to compensate for the interference introduced in the current environment.Type: GrantFiled: November 1, 2012Date of Patent: February 10, 2015Assignee: Microsoft CorporationInventor: Min Chin Chai
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Patent number: 8901944Abstract: One embodiment of a capacitive sensor array may comprise a first plurality of sensor elements and a second sensor element comprising a main trace, where the main trace intersects each of the first plurality of sensor elements to form a plurality of intersections. A unit cell may be associated with each of the intersections, and each unit cell may designate a set of locations nearest to the corresponding intersection. A contiguous section of the main trace may cross at least one of the plurality of unit cells. Within each unit cell, the second sensor element may comprise at least one primary subtrace branching away from the main trace.Type: GrantFiled: August 5, 2011Date of Patent: December 2, 2014Assignee: Cypress Semiconductor CorporationInventors: Min Chin Chai, Patrick Prendergast, Tao Peng
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Publication number: 20140118241Abstract: One or more input location correction tables are used to compensate for interference introduced into input panels and generate a corrected location based on a sensed location of the input panel. The one or more input location correction tables can include a coarse table and a fine table that stores mappings of intermediate locations mapped to by the coarse table having an accuracy that fails to satisfy a threshold coordinate accuracy. Different environments in which computing device can be situated can result in different interference being introduced, and the one or more input location correction tables can be updated based on the current environment to compensate for the interference introduced in the current environment.Type: ApplicationFiled: November 1, 2012Publication date: May 1, 2014Applicant: MICROSOFT CORPORATIONInventor: Min Chin Chai
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Patent number: 8482546Abstract: A self-shielding capacitive sensor array may include a first plurality of sensor elements and a second plurality of sensor elements, where each of the second plurality of sensor elements intersects each of the first plurality of sensor elements, such that each of the first plurality of sensor elements may be capacitively coupled with each of the second plurality of sensor elements. The first plurality of sensor elements may be configured to shield each of the second plurality of sensor elements from a noise source.Type: GrantFiled: June 29, 2011Date of Patent: July 9, 2013Assignee: Cypress Semiconductor CorporationInventors: Min Chin Chai, Fred Keiser, Igor Polishchuk
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Publication number: 20130049771Abstract: A capacitive sense array configured to improve edge accuracy in detecting a presence of a conductive object is described. In one embodiment, a capacitive sense array includes at least a first set of sense elements having non-homogenous pitches disposes in a first longitudinal axis of the capacitive sense array. The pitch includes width of the sense elements and spacing between the sense elements.Type: ApplicationFiled: September 1, 2011Publication date: February 28, 2013Inventors: Tao Peng, Min Chin Chai
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Publication number: 20120133611Abstract: An embodiment of a capacitive sensor array may comprise a first plurality of sensor elements and a second sensor element comprising a main trace that intersects each of the first plurality of sensor elements to form a plurality of intersections. A unit cell may be associated with each of the intersections, and each unit cell may designate a set of locations nearest to a corresponding intersection. A contiguous section of the main trace may cross at least one of the plurality of unit cells. The capacitive sensor array may further comprise a plurality of open zones, where each of the plurality of open zones is staggered relative to an adjacent open zone.Type: ApplicationFiled: September 28, 2011Publication date: May 31, 2012Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Min Chin Chai, Massoud Badaye, Patrick Prendergast
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Publication number: 20120044198Abstract: A self-shielding capacitive sensor array may include a first plurality of sensor elements and a second plurality of sensor elements, where each of the second plurality of sensor elements intersects each of the first plurality of sensor elements, such that each of the first plurality of sensor elements may be capacitively coupled with each of the second plurality of sensor elements. The first plurality of sensor elements may be configured to shield each of the second plurality of sensor elements from a noise source.Type: ApplicationFiled: June 29, 2011Publication date: February 23, 2012Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Min Chin Chai, Fred Keiser, Igor Polishchuk
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Publication number: 20110316567Abstract: One embodiment of a capacitive sensor array may comprise a first plurality of sensor elements and a second sensor element comprising a main trace, where the main trace intersects each of the first plurality of sensor elements to form a plurality of intersections. A unit cell may be associated with each of the intersections, and each unit cell may designate a set of locations nearest to the corresponding intersection. A contiguous section of the main trace may cross at least one of the plurality of unit cells. Within each unit cell, the second sensor element may comprise at least one primary subtrace branching away from the main trace.Type: ApplicationFiled: August 5, 2011Publication date: December 29, 2011Applicant: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Min Chin Chai, Patrick Prendergast