Patents by Inventor Chia-Chang Hou
Chia-Chang Hou 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: 20160103558Abstract: A projective touch apparatus includes a rail base, a plate standing vertically on the rail base, an optical touch module, a platform slidably disposed through a rail structure of the rail base, a projector, and a host. The optical touch module is disposed on the plate for positioning a touch position of a touch object on a touch surface of the plate. The projector is disposed on the platform and located under the plate, to move with sliding of the platform to a projecting position for projecting an image to the touch surface or a back surface of the plate, or to a containing position to be contained on the rail base. The host is disposed in the rail base for controlling the projector to project the image and for performing a touch operation of the touch object on the touch surface according to the touch position and the image.Type: ApplicationFiled: December 31, 2014Publication date: April 14, 2016Inventors: Chia-Chang Hou, Po-Liang Huang, Chia-Jui Liu
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Publication number: 20160054856Abstract: A touch-sensitive display device includes a display body, a container, a movable cover and at least two optical modules. The display body has a display surface. The container is connected with the display body. The movable cover pivots on the container so as to have an open position and a storage position. The two optical modules are disposed on the movable cover. When the movable cover is at the open position, the two optical modules protrudes outward from an extended surface of the display surface, such that the two optical modules is exposed outward from the container. When the movable cover rotates from the open position to the storage position, the movable cover drives the two optical modules to move backward to be underneath the extended surface of the display surface, such that the two optical modules are located inside the container.Type: ApplicationFiled: February 13, 2015Publication date: February 25, 2016Inventors: Chia-Chang HOU, Shih-Che CHIEN
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Patent number: 9268415Abstract: A touch positioning method is adapted for use on a touch surface of optical identification (OID) technology. The touch surface has thereon multiple positioning marks which define multiple touch areas, and multiple identification patterns, each of which is disposed within a respective touch area and is indicative of a location of the respective touch area. The touch positioning method includes steps of capturing an image of at least one of the touch areas of the touch surface, determining, from among said at least one of the touch areas, a located touch area in which a center point of the image is located, and analyzing the identification pattern which is disposed within the located touch area, so as to obtain the location of the located touch area.Type: GrantFiled: January 31, 2014Date of Patent: February 23, 2016Assignee: WISTRON CORPORATIONInventors: Po-Liang Huang, Yu-Yen Chen, Chia-Chang Hou
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Publication number: 20160034172Abstract: A touch device and a control method and a method for determining unlocking thereof are provided. The touch device includes image capturing units configured nearby a touch surface respectively, and light-reflected objects are configured around the touch surface. In this method, the image capturing units are used to detect a reflected signal to receive a first gesture on the touch surface when the touch device is operated in a touch-lock mode. The image capturing units emit a detecting signal along the touch plane and detect the reflected signal reflected from the detecting signal. It is determined whether the first gesture matches a first specific gesture. When the first gesture matches the first specific gesture, the touch device is operated in a touch-on mode. Touch information is provided when the touch device is operated in the touch-on mode but not provided when the touch device is operated in the touch-lock mode.Type: ApplicationFiled: October 2, 2014Publication date: February 4, 2016Inventor: Chia-Chang Hou
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Patent number: 9207811Abstract: An optical imaging system includes a display panel, a light source module, a touch object, a first image capturing module, a second image capturing module and a control module. The touch object moves from a first position at a first time to a second position at a second time. The first image capturing module and the second image capturing module respectively capture light reflected from the touch object, so as to generate a first signal, a second signal, a third signal and a fourth signal corresponding to the touch object at the first time and the second time. The control module computes a moving direction of the touch object according to variation of the first signal, the second signal, the third signal and the fourth signal.Type: GrantFiled: August 5, 2014Date of Patent: December 8, 2015Assignee: Wistron CorporationInventors: Chia-Chang Hou, Po-Liang Huang, Kuo-Hsien Lu
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Publication number: 20150278624Abstract: An image processing system includes a host device, an input device and an information processing module. The host device includes a storage module, a first data transmission interface, a display module and a control unit. The control unit controls the display module to separately display at least one information encoding pattern at different time points. The input device includes an image capturing module, a second data transmission interface and a processing unit. The image capturing module captures a part of the at least one information encoding pattern displayed on the display module. The processing unit controls the second data transmission interface to transmit data to the first data transmission interface. The information processing module recognizes the part of the at least one information encoding pattern captured by the image capturing module, so as to control the host device or the input device to execute corresponding operation.Type: ApplicationFiled: August 4, 2014Publication date: October 1, 2015Inventor: Chia-Chang Hou
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Patent number: 9134853Abstract: The present disclosure provides a computer system. The computer system comprises a stylus pen and an optical touch system. The stylus pen comprises an optical lens for retrieving relative movement information of the stylus pen when the stylus pen is moving, a first processing unit for analyzing the relative movement information and generating a control signal and a light-emitting unit for sending an optical signal according to the control signal, wherein the optical signal includes the relative movement information. The optical touch system comprises a sensing module for receiving the optical signal and a second processing unit, for calculating relative coordinates of the stylus pen according to the relative movement information included in the optical signal.Type: GrantFiled: April 23, 2014Date of Patent: September 15, 2015Assignee: Wistron CorporationInventors: Chia-Chang Hou, Po-Liang Huang, Chia-Jui Liu
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Publication number: 20150234539Abstract: An optical imaging system includes a display panel, a light source module, a touch object, a first image capturing module, a second image capturing module and a control module. The touch object moves from a first position at a first time to a second position at a second time. The first image capturing module and the second image capturing module respectively capture light reflected from the touch object, so as to generate a first signal, a second signal, a third signal and a fourth signal corresponding to the touch object at the first time and the second time. The control module computes a moving direction of the touch object according to variation of the first signal, the second signal, the third signal and the fourth signal.Type: ApplicationFiled: August 5, 2014Publication date: August 20, 2015Inventors: Chia-Chang Hou, Po-Liang Huang, Kuo-Hsien Lu
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Publication number: 20150227261Abstract: An optical imaging system includes a display panel, a light source module, a first touch object, a second touch object, an image capturing module and a control module. A first reflective section of the first touch object and a second reflective section of the second touch object have different reflectivities. The image capturing module captures light reflected from the first reflective section of the first touch object and the second reflective section of the second touch object, so as to generate a first signal corresponding to the first touch object and a second signal corresponding to the second touch object. The first signal and the second signal have different waveforms. The control module calculates coordinate values of the first touch object and the second touch object according to the first signal and the second signal.Type: ApplicationFiled: August 4, 2014Publication date: August 13, 2015Inventors: Po-Liang Huang, Chun-Chieh Li, Chia-Chang Hou
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Publication number: 20150199071Abstract: An image based touch apparatus and its control method are provided. The image based touch apparatus includes at least two region indicators, at least one image capturing apparatus, and a processing apparatus. Each region indicator includes indication units for indicating a touch surface and a touch sensor. The image capturing apparatus captures at least one image including the indication units. The processing apparatus is connected to the image capturing apparatus and configured for receiving the image. In the method, the touch surface is identified by the processing apparatus according to the indication units in the image. If a touch sensor detects an operating object touches the touch surface, the indication units of the region indicators generates a touch message. The processing apparatus determines the touch message according to the image and then determines a position of the operating object on the touch surface according to the image.Type: ApplicationFiled: May 8, 2014Publication date: July 16, 2015Applicant: Wistron CorporationInventor: Chia-Chang Hou
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Publication number: 20150109260Abstract: The present disclosure provides a computer system. The computer system comprises a stylus pen and an optical touch system. The stylus pen comprises an optical lens for retrieving relative movement information of the stylus pen when the stylus pen is moving, a first processing unit for analyzing the relative movement information and generating a control signal and a light-emitting unit for sending an optical signal according to the control signal, wherein the optical signal includes the relative movement information. The optical touch system comprises a sensing module for receiving the optical signal and a second processing unit, for calculating relative coordinates of the stylus pen according to the relative movement information included in the optical signal.Type: ApplicationFiled: April 23, 2014Publication date: April 23, 2015Applicant: Wistron CorporationInventors: Chia-Chang Hou, Po-Liang Huang, Chia-Jui Liu
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Publication number: 20150048155Abstract: A touch positioning method is adapted for use on a touch surface of optical identification (OID) technology. The touch surface has thereon multiple positioning marks which define multiple touch areas, and multiple identification patterns, each of which is disposed within a respective touch area and is indicative of a location of the respective touch area. The touch positioning method includes steps of capturing an image of at least one of the touch areas of the touch surface, determining, from among said at least one of the touch areas, a located touch area in which a center point of the image is located, and analyzing the identification pattern which is disposed within the located touch area, so as to obtain the location of the located touch area.Type: ApplicationFiled: January 31, 2014Publication date: February 19, 2015Applicant: Wistron CorporationInventors: Po-Liang Huang, Yu-Yen Chen, Chia-Chang Hou
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Publication number: 20140306931Abstract: An optical touch system includes a touch plane; a handheld object including a light emitting unit for emitting a light to the touch plane; two image sensing units disposed at two corners of the touch plane, respectively, and used for receiving the light; and a processing unit electrically connected to the two image sensing units and used for analyzing a light characteristic of the light and executing an operation function according to the light characteristic.Type: ApplicationFiled: May 10, 2013Publication date: October 16, 2014Applicant: Wistron CorporationInventors: Shou-Te Wei, Chia-Chang Hou, Hsun-Hao Chang, Shang-Chin Su
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Publication number: 20140240357Abstract: An electronic device is provided. The electronic device includes an image capturing device, a storage unit, a processing unit and a display device. The image capturing device captures a user image. The storage unit stores display contents. The processing unit identifies facial feature locations of the user image, and determines a vertical skew angle according to the facial feature locations. The processing unit further adjusts the display contents to a deformed image according to the vertical skew angle. The display device displays the deformed image.Type: ApplicationFiled: November 11, 2013Publication date: August 28, 2014Applicant: Wistron CorporationInventor: Chia-Chang Hou
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Publication number: 20140131550Abstract: An optical touch device and a touch control method thereof are provided. The touch control method is adopted by an optical touch device, including: sensing, by a photoelectric sensor, a presence of an object at a touch location on a touch surface; sensing, by a pressure sensor, a pressure; and when the pressure sensor senses the pressure, determining, by a processor, that a touch event has occurred at the touch location.Type: ApplicationFiled: December 28, 2012Publication date: May 15, 2014Applicant: WISTRON CORP.Inventors: Chia-Chang Hou, Chih-Hsiung Chang
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Publication number: 20130342767Abstract: A positioner is provided for positioning a major optical sensing unit and an auxiliary optical sensing unit on a first screen. The positioner includes a body, and a first mounting hole and a first auxiliary mounting hole are formed on the body, and the first mounting hole and the first auxiliary mounting hole are aligned on a horizontal line, and the first mounting hole has a first pointing direction, the first auxiliary mounting hole has a first auxiliary pointing direction, and the first pointing direction is symmetrical to the first auxiliary pointing direction relative to a vertical line.Type: ApplicationFiled: June 21, 2013Publication date: December 26, 2013Inventors: You-Xin Liu, Chia-Chang Hou, Po-Liang Huang, Chia-Jui Liu
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Publication number: 20130257736Abstract: A gesture sensing apparatus configured to be disposed on an electronic apparatus is provided. The gesture sensing apparatus includes at least one optical unit set disposed beside a surface of the electronic apparatus and defining a virtual plane. Each of the optical unit set includes a plurality of optical units, and each of the optical units includes a light source and an image capturing device. The light source emits a detecting light towards the virtual plane. The virtual plane extends from the surface toward a direction away from the surface. The image capturing device captures an image along the virtual plane. When an object intersects the virtual plane, the object reflects the detecting light in the virtual plane into a reflected light. The image capturing device detects the reflected light to obtain information of the object. An electronic system having a gesture input function is also provided.Type: ApplicationFiled: July 13, 2012Publication date: October 3, 2013Applicant: WISTRON CORPORATIONInventors: Chia-Chang Hou, Chun-Chieh Li, Chia-Te Chou, Shou-Te Wei, Ruey-Jiann Lin