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).

  • Publication number: 20230355063
    Abstract: 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: Application
    Filed: July 12, 2023
    Publication date: November 9, 2023
    Inventors: CHUNG-TING YANG, KAI-HO TSAI
  • Patent number: 11744424
    Abstract: 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: Grant
    Filed: January 26, 2022
    Date of Patent: September 5, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Chung-Ting Yang, Kai-Ho Tsai
  • Publication number: 20230134736
    Abstract: 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: Application
    Filed: November 4, 2021
    Publication date: May 4, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: Chung-Ting Yang, Kai-Ho Tsai
  • Publication number: 20220142430
    Abstract: 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: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Inventors: CHUNG-TING YANG, KAI-HO TSAI
  • Patent number: 11278172
    Abstract: 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: Grant
    Filed: August 15, 2019
    Date of Patent: March 22, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Chung-Ting Yang, Kai-Ho Tsai
  • Patent number: 11029764
    Abstract: 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: Grant
    Filed: June 4, 2019
    Date of Patent: June 8, 2021
    Assignee: PixArt Imaging Inc.
    Inventors: Chung-Ting Yang, Kai-Ho Tsai, Yen-Min Chang
  • Patent number: 10990195
    Abstract: 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: Grant
    Filed: June 6, 2019
    Date of Patent: April 27, 2021
    Assignee: PixArt Imaging Inc.
    Inventors: Ching-Lin Chung, Kai-Ho Tsai
  • Publication number: 20200107689
    Abstract: 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: Application
    Filed: August 15, 2019
    Publication date: April 9, 2020
    Inventors: Chung-Ting YANG, Kai-Ho TSAI
  • Publication number: 20190377426
    Abstract: 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: Application
    Filed: June 4, 2019
    Publication date: December 12, 2019
    Inventors: Chung-Ting Yang, Kai-Ho Tsai, Yen-Min Chang
  • Publication number: 20190286249
    Abstract: 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: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Inventors: Ching-Lin Chung, Kai-Ho Tsai
  • Patent number: 10353487
    Abstract: 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: Grant
    Filed: June 6, 2016
    Date of Patent: July 16, 2019
    Assignee: PixArt Imaging Inc.
    Inventors: Ching-Lin Chung, Kai-Ho Tsai
  • Publication number: 20190170542
    Abstract: 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: Application
    Filed: March 29, 2018
    Publication date: June 6, 2019
    Inventors: CHUNG-TING YANG, KAI-HO TSAI, SHIH-KUAN LIU
  • Publication number: 20170168591
    Abstract: 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: Application
    Filed: June 6, 2016
    Publication date: June 15, 2017
    Inventors: Ching-Lin Chung, Kai-Ho Tsai