Patents by Inventor Yann-Cherng CHERN
Yann-Cherng CHERN 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: 20220026289Abstract: A projective capacitive force sensing structure is provided. The projective capacitive force sensing structure includes a first substrate, a first electrode, a first capacitance material layer, a second substrate, a second electrode and a third electrode. The stacking order of the projective capacitive force sensing structure is from the first substrate to the second substrate. The second electrode and the third are respectively below and above the second substrate. A first signal is detected between the first electrode and the second electrode and is collected by the first electrode. A second signal is detected between the second electrode and the third electrode and is collected by the third electrode. A force applied by an object is determined according to the first signal and a location of the object is determined according to the second signal. Both the force applied by an object and the location of the object are acquired.Type: ApplicationFiled: July 21, 2021Publication date: January 27, 2022Inventors: Yann-Cherng Chern, Chih-Sheng Hou
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Patent number: 10234339Abstract: A force sensor having a noise shielding layer is disclosed. For a first embodiment, a top noise shielding layer is configured on a top surface of a force sensor to screen noise signals which are caused by human body's touch or approaching from top of the force sensor. For a second embodiment, a bottom noise shielding layer is configured on a bottom surface of the force sensor to screen noise signals which are caused by human body's touch or approaching from bottom of the force sensor.Type: GrantFiled: June 2, 2016Date of Patent: March 19, 2019Assignee: UNEO INC.Inventors: Yann-Cherng Chern, Chih-Sheng Hou
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Patent number: 10073557Abstract: A force sensing structure and a force sensing device including the same are provided. The force sensing structure is configured to detect a proximity of an object to the force sensor from an upside and a force applied by the object to the force touch sensor. The force sensing structure includes a first electrode and a first capacitance material layer. The first capacitance material layer is disposed adjacent to the first electrode. When the object approaches the force touch sensor, the force touch sensor is configured to detect the proximity of the object according to a first capacitance variation, and when the object contacts the force sensor and deforms of the first capacitance material layer, the force touch sensor is configured to detect the force applied by the object according to a second capacitance variation.Type: GrantFiled: September 6, 2016Date of Patent: September 11, 2018Assignee: Uneo IncorporatedInventors: Yann-Cherng Chern, Han-Ying Lei, Chih-Sheng Hou, Chia-Hung Chou
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Publication number: 20170350771Abstract: A force sensor having a noise shielding layer is disclosed. For a first embodiment, a top noise shielding layer is configured on a top surface of a force sensor to screen noise signals which are caused by human body's touch or approaching from top of the force sensor. For a second embodiment, a bottom noise shielding layer is configured on a bottom surface of the force sensor to screen noise signals which are caused by human body's touch or approaching from bottom of the force sensor.Type: ApplicationFiled: June 2, 2016Publication date: December 7, 2017Inventors: Yann-Cherng CHERN, Chih-Sheng HOU
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Patent number: 9755640Abstract: A resistive input system is disclosed, which includes a resistor matrix. The resistor matrix includes M first traces, N second traces, and M*N resistors. First ends of the resistors of a same column are coupled to one of the M first traces, second ends of the resistors of a same row are coupled to one of the N second traces, M is integers greater than 1, and N is integers greater than and equal to 1. The M*N resistors include variable resistors. A measurement circuit measures variations of a first voltage level of each of the second traces while a power control circuit provides the first voltage to the one of the M first traces and the second voltage to the rest of the M first traces. At least one input point is determined according to the variation of the first voltage level of each of the second traces.Type: GrantFiled: August 13, 2015Date of Patent: September 5, 2017Assignee: UNIVERSAL CLEMENT CORPORATIONInventors: Yann-Cherng Chern, Chih-Sheng Hou, Chih-Hung Huang
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Publication number: 20170068383Abstract: A force sensing structure and a force sensing device including the same are provided. The force sensing structure is configured to detect a proximity of an object to the force sensor from an upside and a force applied by the object to the force touch sensor. The force sensing structure includes a first electrode and a first capacitance material layer. The first capacitance material layer is disposed adjacent to the first electrode. When the object approaches the force touch sensor, the force touch sensor is configured to detect the proximity of the object according to a first capacitance variation, and when the object contacts the force sensor and deforms of the first capacitance material layer, the force touch sensor is configured to detect the force applied by the object according to a second capacitance variation.Type: ApplicationFiled: September 6, 2016Publication date: March 9, 2017Inventors: Yann-Cherng CHERN, Han-Ying LEI, Chih-Sheng HOU, Chia-Hung CHOU
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Patent number: 9542056Abstract: A resistive force sensing circuit and a resistive force sensing apparatus. The circuit includes a plurality of sensor circuit inputs, a plurality of sensor circuit outputs; and a plurality of resistor units. Each of the resistor units includes a force-sensing resistor, a first side resistor, and a second side resistor. The first terminals of the force-sensing resistor, the first side resistor and the second side resistor are electrically connected to each other at one node, a second terminal of the force-sensing resistor is electrically connected to one of the sensor circuit inputs, and second terminals of the first side resistor and the second side resistor are electrically connected to two adjacent sensor circuit outputs, respectively. The first side resistor and the second side resistor are a pair of resistors with substantially equal resistance. The apparatus includes structures to realize the function of the resistive force sensing circuit.Type: GrantFiled: May 20, 2014Date of Patent: January 10, 2017Assignee: Uneo IncorporatedInventors: Yann-Cherng Chern, Chih-Tsung Cheng
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Patent number: 9367193Abstract: A multi-touch pad having grid piezoresistor structure is disclosed. The grid structure conducts current to flow more linearly thereby allowing a more precise calculation of touch position.Type: GrantFiled: July 14, 2014Date of Patent: June 14, 2016Assignee: UNEO INC.Inventors: Yann-Cherng Chern, Chih-Sheng Hou
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Publication number: 20160011701Abstract: A multi-touch pad having grid piezoresistor structure is disclosed. The grid structure conducts current to flow more linearly thereby allowing a more precise calculation of touch position.Type: ApplicationFiled: July 14, 2014Publication date: January 14, 2016Inventors: Yann-Cherng CHERN, Chih-Sheng HOU
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Publication number: 20150349774Abstract: A resistive input system is disclosed, which includes a resistor matrix. The resistor matrix includes M first traces, N second traces, and M*N resistors. First ends of the resistors of a same column are coupled to one of the M first traces, second ends of the resistors of a same row are coupled to one of the N second traces, M is integers greater than 1, and N is integers greater than and equal to 1. The M*N resistors include variable resistors. A measurement circuit measures variations of a first voltage level of each of the second traces while a power control circuit provides the first voltage to the one of the M first traces and the second voltage to the rest of the M first traces. At least one input point is determined according to the variation of the first voltage level of each of the second traces.Type: ApplicationFiled: August 13, 2015Publication date: December 3, 2015Inventors: Yann-Cherng CHERN, Chih-Sheng HOU, Chih-Hung HUANG
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Publication number: 20150338967Abstract: A resistive force sensing circuit and a resistive force sensing apparatus. The circuit includes a plurality of sensor circuit inputs, a plurality of sensor circuit outputs; and a plurality of resistor units. Each of the resistor units includes a force-sensing resistor, a first side resistor, and a second side resistor. The first terminals of the force-sensing resistor, the first side resistor and the second side resistor are electrically connected to each other at one node, a second terminal of the force-sensing resistor is electrically connected to one of the sensor circuit inputs, and second terminals of the first side resistor and the second side resistor are electrically connected to two adjacent sensor circuit outputs, respectively. The first side resistor and the second side resistor are a pair of resistors with substantially equal resistance. The apparatus includes structures to realize the function of the resistive force sensing circuit.Type: ApplicationFiled: May 20, 2014Publication date: November 26, 2015Applicant: Uneo IncorporatedInventors: Yann-Cherng Chern, Chih-Tsung Cheng
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Patent number: 9070499Abstract: A light emitting key is disclosed. A through hole is made through piezoresistive layer; a light source is arranged under the bottom of the light emitting key. When the light source is turned on, light beams shall emit out of the top substrate. The light emitting effect of the key facilitates it to be used in a dark area such as an aircraft flying in the night sky.Type: GrantFiled: May 14, 2013Date of Patent: June 30, 2015Assignee: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Sheng Hou, Chia-Hung Chou, Yann-Cherng Chern
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Publication number: 20140340189Abstract: A light emitting key is disclosed. A through hole is made through piezoresistive layer; a light source is arranged under the bottom of the light emitting key. When the light source is turned on, light beams shall emit out of the top substrate. The light emitting effect of the key facilitates it to be used in a dark area such as an aircraft flying in the night sky.Type: ApplicationFiled: May 14, 2013Publication date: November 20, 2014Applicant: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Sheng HOU, Chia-Hung CHOU, Yann-Cherng CHERN
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Publication number: 20140184231Abstract: A test system having a piece of film type pressure sensor configured under a dome switch for collecting a physical parameter selected from a group consisted of Actuation Force (AF), Timing T1, Contact Force (CF), Timing T2, On-Force (OF), Snap Ratio, and Key Journey of the dome switch is provided to facilitate product sorting according to one of the parameters.Type: ApplicationFiled: December 31, 2012Publication date: July 3, 2014Applicant: UNIVERSAL CEMENT CORPORATIONInventors: Yann-Cherng CHERN, Chih-Sheng HOU
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Patent number: 8434369Abstract: A preloaded pressure sensor module (PPSM) is disclosed, where the PPSM outputs a linear Conductivity Response versus Pressure Force input. The PPSM has a convex or concave profile which is prepared by pressing a flat pressure sensor device onto to a convex or concave base respectively so that the pressure sensitive layer inside the sensor module is bent and displays a preloaded effect.Type: GrantFiled: May 23, 2011Date of Patent: May 7, 2013Assignee: Universal Cement CorporationInventors: Chih-Sheng Hou, Yann-Cherng Chern
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Publication number: 20120297885Abstract: A preloaded pressure sensor module (PPSM) is disclosed, where the PPSM outputs a linear Conductivity Response versus Pressure Force input. The PPSM has a convex or concave profile which is prepared by pressing a flat pressure sensor device onto to a convex or concave base respectively so that the pressure sensitive layer inside the sensor module is bent and displays a preloaded effect.Type: ApplicationFiled: May 23, 2011Publication date: November 29, 2012Applicant: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Sheng HOU, Yann-Cherng CHERN