Patents by Inventor Hsin-Chia Chen
Hsin-Chia Chen 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: 11942750Abstract: A laser inspection system is provided. A laser source emits a laser with a first spectrum and the laser is transmitted by a first optical fiber. A gain optical fiber doped with special ions is connected to the first optical fiber, and a light detector is provided around the gain optical fiber. When the laser with the first spectrum passes through the gain optical fiber, the gain optical fiber absorbs part of the energy level of the laser with the first spectrum, so that the laser with the first spectrum is converted to generate light with a second spectrum based on the frequency conversion phenomenon. The light detector detects the intensity of the light with the second spectrum, so that the power of the laser source can be obtained.Type: GrantFiled: November 23, 2020Date of Patent: March 26, 2024Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Chi Lee, Hsin-Chia Su, Shih-Ting Lin, Yu-Cheng Song, Fu-Shun Ho, Chih-Chun Chen
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Patent number: 11829180Abstract: A pressure detection device of detecting a forced state of a deformable object includes a body, an image sensor and a processor. The body is a deformable hollow structure. The body has an inner surface and an outer surface, and an identifiable vision feature is disposed on the inner surface. The image sensor is disposed inside the body and faces the inner surface of the body, and is adapted to capture a frame containing the identifiable vision feature on the inner surface. The processor is electrically connected with the image sensor, and adapted to analyze position variation of the identifiable vision feature within the captured frame for identifying a motion type of a gesture applied to the outer surface of the body.Type: GrantFiled: August 24, 2021Date of Patent: November 28, 2023Assignee: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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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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Publication number: 20210382514Abstract: A pressure detection device of detecting a forced state of a deformable object includes a body, an image sensor and a processor. The body is a deformable hollow structure. The body has an inner surface and an outer surface, and an identifiable vision feature is disposed on the inner surface. The image sensor is disposed inside the body and faces the inner surface of the body, and is adapted to capture a frame containing the identifiable vision feature on the inner surface. The processor is electrically connected with the image sensor, and adapted to analyze position variation of the identifiable vision feature within the captured frame for identifying a motion type of a gesture applied to the outer surface of the body.Type: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Applicant: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 11144084Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a frame about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the frame.Type: GrantFiled: December 9, 2019Date of Patent: October 12, 2021Assignee: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 10905340Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.Type: GrantFiled: December 2, 2019Date of Patent: February 2, 2021Assignee: PIXART IMAGING INC.Inventors: Ren-Hau Gu, Hsin-Chia Chen, Raman Sahgal, Jung-Tai Lin
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Patent number: 10876873Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.Type: GrantFiled: February 11, 2020Date of Patent: December 29, 2020Assignee: PixArt Imaging Inc.Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
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Patent number: 10871385Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.Type: GrantFiled: January 2, 2019Date of Patent: December 22, 2020Assignee: PIXART IMAGING INC.Inventors: Boon-How Kok, Keen-Hun Leong, Ching-Geak Chan, Chiang-Hee Lim, Chu-Leik Ho, Hsin-Chia Chen, Yen-Min Chang
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Publication number: 20200182672Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.Type: ApplicationFiled: February 11, 2020Publication date: June 11, 2020Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
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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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Publication number: 20200117228Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a frame about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the frame.Type: ApplicationFiled: December 9, 2019Publication date: April 16, 2020Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 10612951Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.Type: GrantFiled: May 31, 2017Date of Patent: April 7, 2020Assignee: PixArt Imaging Inc.Inventors: Hsin-Chia Chen, Sen-Huang Huang, Wei-Chung Wang, Chao-Chien Huang, Ting-Yang Chang, Chun-Wei Chen
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Publication number: 20200100690Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.Type: ApplicationFiled: December 2, 2019Publication date: April 2, 2020Inventors: REN-HAU GU, HSIN-CHIA CHEN, RAMAN SAHGAL, JUNG-TAI LIN
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Patent number: 10548490Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.Type: GrantFiled: August 8, 2016Date of Patent: February 4, 2020Assignee: PIXART IMAGING INC.Inventors: Ren-Hau Gu, Hsin-Chia Chen, Raman Sahgal, Jung-Tai Lin
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Patent number: 10545528Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.Type: GrantFiled: June 18, 2019Date of Patent: January 28, 2020Assignee: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Publication number: 20190302828Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.Type: ApplicationFiled: June 18, 2019Publication date: October 3, 2019Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 10430005Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.Type: GrantFiled: February 9, 2018Date of Patent: October 1, 2019Assignee: PIXART IMAGING INC.Inventors: Sung-Han Wu, Yu-Han Chen, Ming-Hung Tsai, Meng-Lin Yu, Hsin-Chia Chen
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Patent number: 10372155Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.Type: GrantFiled: August 20, 2017Date of Patent: August 6, 2019Assignee: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 10303264Abstract: An optical encoder has a displacement generating unit, a light-emitting unit and an optical navigation integrated circuit. The displacement generating unit has an axle body movable along a central axial line thereof. The axle body has a free end with a diameter larger than a part of the axle body and a planar working surface formed on the free end. The light-emitting unit is configured for operatively providing a light beam to irradiate the working surface of the displacement generating unit. The light beam has a divergence angle within a range to reduce scattering. The optical navigation integrated circuit receives the reflected light beam reflected by the working surface, and calculates a relative displacement between the optical navigation integrated circuit and the working surface.Type: GrantFiled: April 4, 2017Date of Patent: May 28, 2019Assignee: PIXART IMAGING INC.Inventors: Ching-Lin Chung, Hsin-Chia Chen
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Publication number: 20190138832Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.Type: ApplicationFiled: January 2, 2019Publication date: May 9, 2019Inventors: BOON-HOW KOK, KEEN-HUN LEONG, CHING-GEAK CHAN, CHIANG-HEE LIM, CHU-LEIK HO, HSIN-CHIA CHEN, YEN-MIN CHANG