Patents by Inventor Kai-Ho Tsai
Kai-Ho Tsai 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: 20240168165Abstract: An optical tracking device includes an optical detection module and a target component. The optical detection module includes an optical receiver. The target component includes a light penetrating body with at least one mark and movably disposed adjacent to the optical detection module. The target component allows an illumination beam penetrating into the light penetrating body, so that the optical detection module acquires a detection image containing a pattern of the mark for tracking a relative movement between the target component and the optical detection module.Type: ApplicationFiled: November 21, 2022Publication date: May 23, 2024Applicant: PixArt Imaging Inc.Inventors: Chung-Ting Yang, Kai-Ho Tsai
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Publication number: 20230355063Abstract: There is provided a robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.Type: ApplicationFiled: July 12, 2023Publication date: November 9, 2023Inventors: CHUNG-TING YANG, KAI-HO TSAI
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Patent number: 11744424Abstract: There is provided a robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.Type: GrantFiled: January 26, 2022Date of Patent: September 5, 2023Assignee: PIXART IMAGING INC.Inventors: Chung-Ting Yang, Kai-Ho Tsai
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Publication number: 20230134736Abstract: A pet breeding tool includes a roller, an optical sensor and an operation processor. The roller is adapted to rotate relative to an axle direction. The optical sensor is adapted to emit a detection beam toward the roller and receive a reflection beam from the roller. The operation processor is electrically connected to the optical sensor. The operation processor is adapted to analyze the reflection beam for acquiring rotation data of the roller, and further transform random variation of the rotation data into behavior of the roller for immediately adjusting output information relevant to the foresaid behavior.Type: ApplicationFiled: November 4, 2021Publication date: May 4, 2023Applicant: PixArt Imaging Inc.Inventors: Chung-Ting Yang, Kai-Ho Tsai
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Publication number: 20220142430Abstract: There is provided a robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.Type: ApplicationFiled: January 26, 2022Publication date: May 12, 2022Inventors: CHUNG-TING YANG, KAI-HO TSAI
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Patent number: 11278172Abstract: There is provided a cleaning robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.Type: GrantFiled: August 15, 2019Date of Patent: March 22, 2022Assignee: PIXART IMAGING INC.Inventors: Chung-Ting Yang, Kai-Ho Tsai
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Patent number: 11029764Abstract: An optical detection device capable of detecting a pointer position of a turntable watch includes an optical receiver and a processor. The optical receiver is disposed inside the turntable watch and adapted to receive an optical reflecting signal. The processor is electrically connected to the optical receiver and adapted to compare a physical quantity of the optical reflecting signal with a predefined condition for determining whether a pointer of the turntable watch is located above the optical receiver. The optical detection device further includes an optical emitter electrically connected to the processor and adapted to emit an optical detecting signal. The optical detecting signal is projected onto the pointer to generate the optical reflecting signal.Type: GrantFiled: June 4, 2019Date of Patent: June 8, 2021Assignee: PixArt Imaging Inc.Inventors: Chung-Ting Yang, Kai-Ho Tsai, Yen-Min Chang
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Patent number: 10990195Abstract: An electronic apparatus includes a structure and an optical navigation circuit. A first end of the structure is located inside the electronic apparatus and its second end corresponds to a user's control. The structure can be moved forward/backward in a specific direction and/or rotated in another direction. The optical navigation circuit captures reflection of a light emitting to the structure to detect displacement of the image along a specific axis of the structure, and determines the user's operating behavior as a specific operation according to a change of the sensed displacement of the image.Type: GrantFiled: June 6, 2019Date of Patent: April 27, 2021Assignee: PixArt Imaging Inc.Inventors: Ching-Lin Chung, Kai-Ho Tsai
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Publication number: 20200107689Abstract: There is provided a cleaning robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.Type: ApplicationFiled: August 15, 2019Publication date: April 9, 2020Inventors: Chung-Ting YANG, Kai-Ho TSAI
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Publication number: 20190377426Abstract: An optical detection device capable of detecting a pointer position of a turntable watch includes an optical receiver and a processor. The optical receiver is disposed inside the turntable watch and adapted to receive an optical reflecting signal. The processor is electrically connected to the optical receiver and adapted to compare a physical quantity of the optical reflecting signal with a predefined condition for determining whether a pointer of the turntable watch is located above the optical receiver. The optical detection device further includes an optical emitter electrically connected to the processor and adapted to emit an optical detecting signal. The optical detecting signal is projected onto the pointer to generate the optical reflecting signal.Type: ApplicationFiled: June 4, 2019Publication date: December 12, 2019Inventors: Chung-Ting Yang, Kai-Ho Tsai, Yen-Min Chang
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Publication number: 20190286249Abstract: An electronic apparatus includes a structure and an optical navigation circuit. A first end of the structure is located inside the electronic apparatus and its second end corresponds to a user's control. The structure can be moved forward/backward in a specific direction and/or rotated in another direction. The optical navigation circuit captures reflection of a light emitting to the structure to detect displacement of the image along a specific axis of the structure, and determines the user's operating behavior as a specific operation according to a change of the sensed displacement of the image.Type: ApplicationFiled: June 6, 2019Publication date: September 19, 2019Inventors: Ching-Lin Chung, Kai-Ho Tsai
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Patent number: 10353487Abstract: An electronic apparatus includes a structure and an optical navigation circuit. A first end of the structure is located inside the electronic apparatus and its second end corresponds to a user's control. The structure can be moved forward/backward in a specific direction and/or rotated in another direction. The optical navigation circuit emits light to the structure, captures reflected light from the structure to sense/receive an image from the surface of the structure, detects displacement of the image along a specific axis of the structure, and determines the user's operating behavior as a specific operation according to a change of the sensed displacement of the image.Type: GrantFiled: June 6, 2016Date of Patent: July 16, 2019Assignee: PixArt Imaging Inc.Inventors: Ching-Lin Chung, Kai-Ho Tsai
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Publication number: 20190170542Abstract: The present disclosure is related a technology of confirming a position using an optical sensor to detect reflected light coming through a through hole formed at a predetermined position on a rotation device. In the present disclosure, the optical sensor and a light source are formed at the same side of a rotatable element so as to reduce the occupied space and simplify the manufacturing process.Type: ApplicationFiled: March 29, 2018Publication date: June 6, 2019Inventors: CHUNG-TING YANG, KAI-HO TSAI, SHIH-KUAN LIU
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Publication number: 20170168591Abstract: An electronic apparatus includes a structure and an optical navigation circuit. A first end of the structure is located inside the electronic apparatus and its second end corresponds to a user's control. The structure can be moved forward/backward in a specific direction and/or rotated in another direction. The optical navigation circuit emits light to the structure, captures reflected light from the structure to sense/receive an image from the surface of the structure, detects displacement of the image along a specific axis of the structure, and determines the user's operating behavior as a specific operation according to a change of the sensed displacement of the image.Type: ApplicationFiled: June 6, 2016Publication date: June 15, 2017Inventors: Ching-Lin Chung, Kai-Ho Tsai