Patents by Inventor Yen-Chang Wang
Yen-Chang Wang 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: 20240078887Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.Type: ApplicationFiled: November 15, 2023Publication date: March 7, 2024Inventors: CHENG-NAN TSAI, GUO-ZHEN WANG, CHING-KUN CHEN, YEN-CHANG CHU, CHIH-MING SUN
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Publication number: 20230201706Abstract: A game board device is provided for carrying and identifying game pieces that are divided into different piece types. The game board device includes a board, a plurality of optically identifying modules, and a processing module electrically coupled to the optically identifying modules. The optically identifying modules respectively correspond in position to detection regions of the board. Each of the optically identifying modules includes a light emitter that can emit light toward the corresponding detection region and a light receiver that can receive light reflected by the corresponding detection region. When any one of the detection regions is in an unoccupied mode, the corresponding optically identifying module can emit an unoccupied signal. When any one of the detection regions is in an occupied mode, the corresponding optically identifying module enables an identification signal that corresponds to the piece type of the corresponding game piece to be emitted therefrom.Type: ApplicationFiled: December 28, 2021Publication date: June 29, 2023Inventors: CHUNG-TING YANG, YEN-MIN CHANG, YEN-CHANG WANG
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Patent number: 11206057Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: GrantFiled: January 8, 2020Date of Patent: December 21, 2021Assignee: PIXART IMAGING INC.Inventors: Yung-Wei Chen, Yen-Chang Wang, Yen-Min Chang, Hsin-Chia Chen
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Patent number: 11051680Abstract: An endoscope stereo imaging device includes an endoscope lens assembly and an imaging module. The imaging module includes first, second and third lens assemblies, a beam splitter, first and second image sensors and a micro lens array. A light beam from the endoscope lens assembly is transmitted to the beam splitter after passing through the first lens assembly and is split into first and second portions of the light beam. The first portion light beam is transmitted to the first image sensor via the second lens assembly and forms a two-dimensional image. The second portion light beam is transmitted to the second image sensor via the third lens assembly and the micro lens array sequentially and forms a first three-dimensional image.Type: GrantFiled: December 13, 2019Date of Patent: July 6, 2021Assignee: Industrial Technology Research InstituteInventors: Chy-Lin Wang, Yen-Chang Wang, Chih-Cheng Hsu, Hsiao-Yue Tsao
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Publication number: 20210177246Abstract: An endoscope stereo imaging device includes an endoscope lens assembly and an imaging module. The imaging module includes first, second and third lens assemblies, a beam splitter, first and second image sensors and a micro lens array. A light beam from the endoscope lens assembly is transmitted to the beam splitter after passing through the first lens assembly and is split into first and second portions of the light beam. The first portion light beam is transmitted to the first image sensor via the second lens assembly and forms a two-dimensional image. The second portion light beam is transmitted to the second image sensor via the third lens assembly and the micro lens array sequentially and forms a first three-dimensional image.Type: ApplicationFiled: December 13, 2019Publication date: June 17, 2021Applicant: Industrial Technology Research InstituteInventors: Chy-Lin Wang, Yen-Chang Wang, Chih-Cheng Hsu, Hsiao-Yue Tsao
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Patent number: 10901538Abstract: A pen mouse includes a housing, a rotatable actuator, an optical sensor and a processor. The rotatable actuator is movably disposed inside the housing along a structurally longitudinal direction and a structurally horizontal direction of the housing. The optical sensor is adapted to detect surface reflection of the rotatable actuator. The processor is electrically connected with the optical sensor and adapted to compute a rotating direction, a rotating angle and depth variation of the rotatable actuator via analysis of the surface reflection.Type: GrantFiled: December 27, 2018Date of Patent: January 26, 2021Assignee: PixArt Imaging Inc.Inventors: Yen-Chang Wang, Tsung-Fa Wang
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Publication number: 20200209993Abstract: A pen mouse includes a housing, a rotatable actuator, an optical sensor and a processor. The rotatable actuator is movably disposed inside the housing along a structurally longitudinal direction and a structurally horizontal direction of the housing. The optical sensor is adapted to detect surface reflection of the rotatable actuator. The processor is electrically connected with the optical sensor and adapted to compute a rotating direction, a rotating angle and depth variation of the rotatable actuator via analysis of the surface reflection.Type: ApplicationFiled: December 27, 2018Publication date: July 2, 2020Inventors: Yen-Chang Wang, Tsung-Fa Wang
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Publication number: 20200153481Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: ApplicationFiled: January 8, 2020Publication date: May 14, 2020Inventors: Yung-Wei CHEN, Yen-Chang WANG, Yen-Min CHANG, Hsin-Chia CHEN
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Patent number: 10649551Abstract: A pen mouse with an inclining compensation function includes an optical sensor, a sensor array, a pen tip and a processor. The optical sensor is adapted to sense a relative movement of an object. The sensor array has a plurality of sensing units. The pen tip is connected to the sensor array and adapted to activate at least one of the plurality of sensing units when being pressed by the object. The processor is electrically connected with the sensor array. The processor is adapted to compute a trace of the pen mouse via analysis of the relative movement and further to compensate the trace via analysis of the activated sensing unit.Type: GrantFiled: December 27, 2018Date of Patent: May 12, 2020Assignee: PixArt Imaging Inc.Inventors: Yen-Chang Wang, Tsung-Fa Wang
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Patent number: 10331230Abstract: A navigation device with distance detecting function can utilize a distance detecting mechanism to detect a distance relative to a working surface. The distance detecting mechanism includes a base, a connecting component, a feature unit and a detection unit. The connecting component partly protrudes from the base. The connecting component optionally contacts against or is spaced from the working surface to generate a distance variation relative to the base along an axial direction. The feature unit is disposed on the connecting component. The detection unit is connected to the base. The detection unit can detect parameter difference of the feature unit according to the distance variation of the connecting component relative to the base, so as to determine the distance between the working surface and a bottom of the base via the parameter difference.Type: GrantFiled: June 25, 2017Date of Patent: June 25, 2019Assignee: PixArt Imaging Inc.Inventors: Tsung-Fa Wang, Yen-Chang Wang, Shih-Wei Kuo
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Patent number: 10236935Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: GrantFiled: August 15, 2017Date of Patent: March 19, 2019Assignee: PIXART IMAGING INC.Inventors: Yung-Wei Chen, Yen-Chang Wang, Yen-Min Chang, Hsin-Chia Chen
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Patent number: 10127661Abstract: A method for evaluating skin tissue includes: obtaining a tomographic image of skin; performing a quantization process for quantizing brightness values of the tomographic image of skin to generate a quantized image; performing a binarization process on the brightness value of each image point in the quantized image according to a first threshold interval to generate a first filtered image; performing the binarization process on the brightness value of each image point in the quantized image according to a second threshold interval to generate a second filtered image; obtaining a first estimated tissue boundary according to the distribution of the bright spots in the first filtered image; obtaining a second estimated tissue boundary according to the distribution of the bright spots in the second filtered image; estimating a thickness of skin tissue according to a difference between the first and second estimated tissue boundaries.Type: GrantFiled: December 30, 2016Date of Patent: November 13, 2018Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yen-Chang Wang, Chih-Ming Cheng, Chir-Weei Chang, Chi-Shen Chang, Sheng-Li Chang
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Patent number: 10088113Abstract: An illumination apparatus includes an outer tube, an inner tube, and a light source. The outer tube has a reflecting inner wall. The inner tube is disposed in the outer tube and coaxial with the outer tube. The inner tube has a reflecting outer wall. A ring-shaped light channel is formed between the outer tube and the inner tube. The ring-shaped light channel has a light entrance and a light exit corresponding to two ends of the outer tube respectively. A segment of the inner tube protrudes from the light exit. The light source is disposed at the light entrance. A light beam emitted from the light source enters the ring-shaped light channel through the light entrance, is reflected multiple times by the reflecting inner wall of the outer tube and the reflecting outer wall of the inner tube, and travels out of the illumination apparatus through the light exit.Type: GrantFiled: December 28, 2017Date of Patent: October 2, 2018Assignee: Industrial Technology Research InstituteInventors: Kuang-Vu Chen, Yen-Chang Wang
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Publication number: 20180232067Abstract: A navigation device with distance detecting function can utilize a distance detecting mechanism to detect a distance relative to a working surface. The distance detecting mechanism includes a base, a connecting component, a feature unit and a detection unit. The connecting component partly protrudes from the base. The connecting component optionally contacts against or is spaced from the working surface to generate a distance variation relative to the base along an axial direction. The feature unit is disposed on the connecting component. The detection unit is connected to the base. The detection unit can detect parameter difference of the feature unit according to the distance variation of the connecting component relative to the base, so as to determine the distance between the working surface and a bottom of the base via the parameter difference.Type: ApplicationFiled: June 25, 2017Publication date: August 16, 2018Inventors: Tsung-Fa Wang, Yen-Chang Wang, Shih-Wei Kuo
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Publication number: 20170373719Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: ApplicationFiled: August 15, 2017Publication date: December 28, 2017Inventors: Yung-Wei CHEN, Yen-Chang WANG, Yen-Min CHANG, Hsin-Chia CHEN
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Publication number: 20170346529Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: ApplicationFiled: August 15, 2017Publication date: November 30, 2017Inventors: Yung-Wei CHEN, Yen-Chang WANG, Yen-Min CHANG, Hsin-Chia CHEN
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Patent number: 9800292Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: GrantFiled: June 8, 2016Date of Patent: October 24, 2017Assignee: PixArt Imaging IncInventors: Yung-Wei Chen, Yen-Chang Wang, Yen-Min Chang, Hsin-Chia Chen
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Publication number: 20170193659Abstract: A method for evaluating skin tissue includes: obtaining a tomographic image of skin; performing a quantization process for quantizing brightness values of the tomographic image of skin to generate a quantized image; performing a binarization process on the brightness value of each image point in the quantized image according to a first threshold interval to generate a first filtered image; performing the binarization process on the brightness value of each image point in the quantized image according to a second threshold interval to generate a second filtered image; obtaining a first estimated tissue boundary according to the distribution of the bright spots in the first filtered image; obtaining a second estimated tissue boundary according to the distribution of the bright spots in the second filtered image; estimating a thickness of skin tissue according to a difference between the first and second estimated tissue boundaries.Type: ApplicationFiled: December 30, 2016Publication date: July 6, 2017Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yen-Chang WANG, Chih-Ming CHENG, Chir-Weei CHANG, Chi-Shen CHANG, Sheng-Li CHANG
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Patent number: 9626269Abstract: An electronic system that can automatically set a report rate, which comprises: a first electronic apparatus; a second electronic apparatus; a transmitting interface, wherein the second electronic apparatus transmits data to the first electronic apparatus via the transmitting interface; and a processing unit, for automatically setting a report rate of the second electronic apparatus or the transmitting interface according to a type of a software program that the first electronic apparatus executes.Type: GrantFiled: December 27, 2013Date of Patent: April 18, 2017Assignee: PixArt Imaging Inc.Inventors: Chun-Wei Chen, Yen-Min Chang, Yen-Chang Wang
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Publication number: 20160285514Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Inventors: Yung-Wei CHEN, Yen-Chang WANG, Yen-Min CHANG, Hsin-Chia CHEN