Patents Assigned to Universal Cement Corporation
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Patent number: 11269440Abstract: A force sensing device includes a sensor array, a first substrate, a second substrate and a plurality of electrodes. The first substrate has a sensor region and a side region. The second substrate has a sensor region and a side region. The sensor array is formed above the sensor region of the first substrate. The plurality of electrodes are formed on the sensor region and the side region of the first substrate and below the sensor region and the side region of the second substrate, and coupled to the sensor array. The side region of the first substrate, the side region of the second substrate and the plurality of electrodes on the side region are foldable to a back side of the sensor array.Type: GrantFiled: August 12, 2020Date of Patent: March 8, 2022Assignee: UNIVERSAL CEMENT CORPORATIONInventors: Shao-Chuan Fang, Chih-Sheng Hou
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Patent number: 10429254Abstract: A fast response force sensor is disclosed. The fast response force sensor comprises a solid-state bonding (SSB) spacer and piezo material therein. The SSB spacer is sandwiched between a top stack and a bottom stack of the force sensor. The SSB spacer maintains a fixed relative position between a top stack and a bottom stack of the force sensor when a fixed force is applied or removed. The SSB spacer is in solid state and shall not be significantly deformed while being depressed by a user, and therefore the response time of an output signal is vastly determined by the properties of the piezo material of the force sensor when a force is applied against the force sensor. Therefore, a fast response force sensor can respond quickly to a force applied against it.Type: GrantFiled: April 27, 2017Date of Patent: October 1, 2019Assignee: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Sheng Hou, Chia-Hung Chou
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Patent number: 9164643Abstract: A method for controlling an input device is provided. The input device has a resistor matrix having M first traces, N second traces and M×N resistors. Each second trace is coupled to a reference resistor and M?1 variable resistors. M and N are integers greater than 1. A first voltage level of each second trace is measured when a first voltage is applied to a first end of the reference resistor and a second voltage is applied to first ends of the M?1 variable resistors via the M first traces. Variations of the first voltage level of each second trace are measured, such that it could be determined whether any touch point of the input device exists according to the variations of the first voltage level of each second trace.Type: GrantFiled: January 5, 2014Date of Patent: October 20, 2015Assignee: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Hung Huang, Chih-Sheng Hou
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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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Patent number: 8993913Abstract: A cover glass pressure button (CGPB) is disclosed for an electronic device that has an image display module which is protected by a cover glass. When the cover glass is pressed, the CGPB senses the pressure to output a corresponding physical parameter to a control circuit for triggering a function of the image display module.Type: GrantFiled: July 24, 2012Date of Patent: March 31, 2015Assignee: Universal Cement CorporationInventor: Chih-Sheng Hou
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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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Patent number: 8779315Abstract: A cover glass pressure button (CGPB) is disclosed for an electronic device that has an image display module which is protected by a cover glass. When the cover glass is pressed, the CGPB senses the pressure to output a corresponding physical parameter to a control circuit for triggering a function of the image display module.Type: GrantFiled: June 2, 2011Date of Patent: July 15, 2014Assignee: Universal Cement CorporationInventor: Chih-Sheng Hou
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Publication number: 20140191795Abstract: A method for controlling an input device is provided. The input device has a resistor matrix having M first traces, N second traces and M×N resistors. Each second trace is coupled to a reference resistor and M?1 variable resistors. M and N are integers greater than 1. A first voltage level of each second trace is measured when a first voltage is applied to a first end of the reference resistor and a second voltage is applied to first ends of the M?1 variable resistors via the M first traces. Variations of the first voltage level of each second trace are measured, such that it could be determined whether any touch point of the input device exists according to the variations of the first voltage level of each second trace.Type: ApplicationFiled: January 5, 2014Publication date: July 10, 2014Applicant: UNIVERSAL CEMENT CORPORATIONInventors: Chih-Hung Huang, Chih-Sheng Hou
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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: 8766125Abstract: A D/A integrated pressure key for a keyboard is shown. A digital signal output first when a pressure is applied on the single key, and then an analog signal output while applying a bigger pressure over the same key. The magnitude of the analog signal output is positively related to the magnitude of the pressure applied on the integrated pressure key.Type: GrantFiled: November 9, 2012Date of Patent: July 1, 2014Assignee: Universal Cement CorporationInventors: Chia-Hung Chou, Chih-Sheng Hou
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Publication number: 20140131186Abstract: A D/A integrated pressure key for a keyboard is disclosed. A digital signal output first when a pressure is applied on the single key, and then an analog signal output while applying a bigger pressure over the same key. The magnitude of the analog signal output is positively related to the magnitude of the pressure applied on the integrated pressure key.Type: ApplicationFiled: November 9, 2012Publication date: May 15, 2014Applicant: UNIVERSAL CEMENT CORPORATIONInventors: Chia-Hung CHOU, Chih-Sheng HOU
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Publication number: 20130335357Abstract: A cover glass pressure-sensitive button for a mobile device is disclosed, a piece of pressure sensor is configured under peripheral of a cover glass for a display of a mobile device. The cover glass can be pressed like a button, and a signal is output from the pressure sensor to trigger a predetermined function for the mobile device when a pressure is applied on the cover glass. In another embodiment, a space is reserved either under the touch panel or under the LCD module. With this configuration, the pressure sensitivity of the cover glass increases because the pressure applied on the cover glass can be fully transferred onto the pressure sensor.Type: ApplicationFiled: August 21, 2013Publication date: December 19, 2013Applicant: Universal Cement CorporationInventor: Chih Sheng HOU
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Patent number: 8564559Abstract: A cover glass pressure-sensitive button for a mobile device is disclosed, a piece of pressure sensor is configured under peripheral of a cover glass for a display of a mobile device. The cover glass can be pressed like a button, and a signal is output from the pressure sensor to trigger a predetermined function for the mobile device when a pressure is applied on the cover glass. In another embodiment, a space is reserved either under the touch panel or under the LCD module. With this configuration, the pressure sensitivity of the cover glass increases because the pressure applied on the cover glass can be fully transferred onto the pressure sensor.Type: GrantFiled: December 22, 2010Date of Patent: October 22, 2013Assignee: Universal Cement CorporationInventor: 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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Patent number: 8371174Abstract: A micro-deformable piezoresistive material is provided, including a hard plastic body, a micro-deformable rough texture surface, and a plurality of conductive particles. The micro-deformable rough texture surface is formed on a side of the hard plastic body, wherein the maximum deformation of the rough texture surface is far less than the thickness of the hard plastic body. Additionally, the conductive particles are evenly dispersed in the plastic body.Type: GrantFiled: December 31, 2009Date of Patent: February 12, 2013Assignee: Universal Cement CorporationInventors: Yi-Ling Chen, Chih Sheng Hou, Chia-Hung Chou
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Publication number: 20120305378Abstract: A cover glass pressure button (CGPB) is disclosed for an electronic device that has an image display module which is protected by a cover glass. When the cover glass is pressed, the CGPB senses the pressure to output a corresponding physical parameter to a control circuit for triggering a function of the image display module.Type: ApplicationFiled: July 24, 2012Publication date: December 6, 2012Applicant: UNIVERSAL CEMENT CORPORATIONInventor: Chih-Sheng HOU
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Publication number: 20120305377Abstract: A cover glass pressure button (CGPB) is disclosed for an electronic device that has an image display module which is protected by a cover glass. When the cover glass is pressed, the CGPB senses the pressure to output a corresponding physical parameter to a control circuit for triggering a function of the image display module.Type: ApplicationFiled: June 2, 2011Publication date: December 6, 2012Applicant: UNIVERSAL CEMENT CORPORATIONInventor: Chih-Sheng HOU
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Patent number: 8322224Abstract: A pressure guiding bump is configured on the center of a pressure gauge to obtain a single “conductivity--pressure” curve feature which is independent from any position wherever a pressure is applied on the guiding bump. When a pressure is applied, the guiding bump guides the pressure against a fixed deformable area to be deformed, whatever the pressure is, the deformed area is nearly a same area. The pressure gauge is extraordinarily adequate to be designed in a weighing machine with parallel connection in between them.Type: GrantFiled: June 24, 2010Date of Patent: December 4, 2012Assignees: Universal Cement Corporation, Industrial Technology Research InstituteInventors: Chih-Sheng Hou, Chia-Hung Chou
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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
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Patent number: 8210994Abstract: A pressure sensor is provided, wherein a ballast resistive layer is integrated in the pressure sensor so that the resistive output curve for the pressure sensor has saturation characteristics. The pressure sensor shall be prevented from breaking down by a large current that may be caused, when an overload pressure is applied on the pressure sensor, if no ballast resistive layer is added.Type: GrantFiled: December 31, 2009Date of Patent: July 3, 2012Assignee: Universal Cement CorporationInventors: Chia-Chieh Chang, Chih Sheng Hou, Chia-Hung Chou