Patents by Inventor Chin-Tang Chuang
Chin-Tang Chuang 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: 20240374154Abstract: An arterial pulse wave measurement system and a pulse wave measurement method are provided. The system includes a first sensor, a pressurizing element, and a processing device. The first sensor is arranged on the radial artery to detect a pulse wave amplitude of a radial artery. The pressurizing element contacts the first sensor to pressurize the first sensor. The processing device is coupled to the first sensor and the pressurizing element so as to control the first sensor to continuously detect the pulse wave amplitude and control the pressurizing element to continuously pressurize. When the processing device confirms that the pulse wave amplitude starts to decrease, the processing device controls the pressurizing element to depressurize until the pulse wave amplitude returns to a maximum amplitude pulse wave and records the pulse wave waveform of the radial artery under a constant pressure.Type: ApplicationFiled: August 21, 2023Publication date: November 14, 2024Applicant: AUO CorporationInventors: Jung-Teng Pan, Chin-Tang Chuang, Wen Ching Kao
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Publication number: 20240268689Abstract: A physiological signal measurement apparatus, including a base seat, an air-bladder device, a plurality of pressure sensors, and a plurality of elastomers, is provided. The air-bladder device is disposed on the base seat and includes a plurality of sub air-bladders. The pressure sensors are respectively disposed on the sub air-bladders. The elastomers are respectively disposed between the sub air-bladders and the pressure sensors.Type: ApplicationFiled: September 3, 2023Publication date: August 15, 2024Applicant: AUO CorporationInventors: Yuan Tsai Lin, Wen Ching Kao, Jung-Teng Pan, Chin-Tang Chuang
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Patent number: 11979156Abstract: A level shifter includes a buffer circuit, a first shift circuit, and a second shift circuit. The buffer circuit provides a first signal and a first inverted signal to the first shift circuit, such that the first shift circuit provides a second signal and a second inverted signal to the second shift circuit. The second shift circuit generates a plurality of output signals according to the second signal and the second inverted signal. The first shift circuit includes a plurality of first stacking transistors and a first voltage divider circuit. The first voltage divider circuit is electrically coupled between a first system high voltage terminal and a system low voltage terminal. The first voltage divider circuit is configured to provide a first inner bias to gate terminals of the first stacking transistors.Type: GrantFiled: March 21, 2023Date of Patent: May 7, 2024Assignee: AU OPTRONICS CORPORATIONInventors: Yi-Chen Lu, Hsu-Chi Li, Yi-Jan Chen, Boy-Yiing Jaw, Chin-Tang Chuang, Chung-Hung Chen
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Publication number: 20240138771Abstract: A pulse manifestation determining method is provided. The pulse manifestation method includes following steps. A pulse signal for determination is obtained. A valid range of the pulse signal for determination is determined through identifying a reverse pulse. A pulse manifestation is determined based on the valid range.Type: ApplicationFiled: July 31, 2023Publication date: May 2, 2024Applicant: AUO CorporationInventors: Chien Cheng Wang, Jung-Teng Pan, Chin-Tang Chuang
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Publication number: 20230238946Abstract: A level shifter includes a buffer circuit, a first shift circuit, and a second shift circuit. The buffer circuit provides a first signal and a first inverted signal to the first shift circuit, such that the first shift circuit provides a second signal and a second inverted signal to the second shift circuit. The second shift circuit generates a plurality of output signals according to the second signal and the second inverted signal. The first shift circuit includes a plurality of first stacking transistors and a first voltage divider circuit. The first voltage divider circuit is electrically coupled between a first system high voltage terminal and a system low voltage terminal. The first voltage divider circuit is configured to provide a first inner bias to gate terminals of the first stacking transistors.Type: ApplicationFiled: March 21, 2023Publication date: July 27, 2023Inventors: Yi-Chen LU, Hsu-Chi LI, Yi-Jan CHEN, Boy-Yiing JAW, Chin-Tang CHUANG, Chung-Hung CHEN
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Patent number: 11641192Abstract: A level shifter includes a buffer circuit, a first shift circuit, and a second shift circuit. The buffer circuit provides a first signal and a first inverted signal to the first shift circuit, such that the first shift circuit provides a second signal and a second inverted signal to the second shift circuit. The second shift circuit generates a plurality of output signals according to the second signal and the second inverted signal. The first shift circuit includes a plurality of first stacking transistors and a first voltage divider circuit. The first voltage divider circuit is electrically coupled between a first system high voltage terminal and a system low voltage terminal. The first voltage divider circuit is configured to provide a first inner bias to gate terminals of the first stacking transistors.Type: GrantFiled: November 2, 2021Date of Patent: May 2, 2023Assignee: AU OPTRONICS CORPORATIONInventors: Yi-Chen Lu, Hsu-Chi Li, Yi-Jan Chen, Boy-Yiing Jaw, Chin-Tang Chuang, Chung-Hung Chen
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Patent number: 11558043Abstract: The disclosure provides a voltage adjust circuit. The voltage adjust circuit includes a buffer circuit, a bias circuit, a level shifter and a cross voltage limit circuit. The buffer circuit includes a plurality of pull-up transistors and a plurality of pull-down transistors. The pull-up transistors coupled in series between an output terminal of the circuit and a high voltage system terminal. The pull-down transistors coupled in series between the output terminal and a low voltage system terminal. The cross voltage limit circuit is configured to limit transient and static bias voltages across two terminals of the pull-up transistors or the pull-down transistors.Type: GrantFiled: November 2, 2021Date of Patent: January 17, 2023Assignee: AU OPTRONICS CORPORATIONInventors: Yi-Chen Lu, Hsu-Chi Li, Yi-Jan Chen, Boy-Yiing Jaw, Chin-Tang Chuang, Chung-Hung Chen
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Publication number: 20220368320Abstract: The disclosure provides a voltage adjust circuit. The voltage adjust circuit includes a buffer circuit, a bias circuit, a level shifter and a cross voltage limit circuit. The buffer circuit includes a plurality of pull-up transistors and a plurality of pull-down transistors. The pull-up transistors coupled in series between an output terminal of the circuit and a high voltage system terminal. The pull-down transistors coupled in series between the output terminal and a low voltage system terminal. The cross voltage limit circuit is configured to limit transient and static bias voltages across two terminals of the pull-up transistors or the pull-down transistors.Type: ApplicationFiled: November 2, 2021Publication date: November 17, 2022Inventors: Yi-Chen LU, Hsu-Chi LI, Yi-Jan CHEN, Boy-Yiing JAW, Chin-Tang CHUANG, Chung-Hung CHEN
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Publication number: 20220368319Abstract: A level shifter includes a buffer circuit, a first shift circuit, and a second shift circuit. The buffer circuit provides a first signal and a first inverted signal to the first shift circuit, such that the first shift circuit provides a second signal and a second inverted signal to the second shift circuit. The second shift circuit generates a plurality of output signals according to the second signal and the second inverted signal. The first shift circuit includes a plurality of first stacking transistors and a first voltage divider circuit. The first voltage divider circuit is electrically coupled between a first system high voltage terminal and a system low voltage terminal. The first voltage divider circuit is configured to provide a first inner bias to gate terminals of the first stacking transistors.Type: ApplicationFiled: November 2, 2021Publication date: November 17, 2022Inventors: Yi-Chen LU, Hsu-Chi LI, Yi-Jan CHEN, Boy-Yiing JAW, Chin-Tang CHUANG, Chung-Hung CHEN
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Patent number: 11482172Abstract: A display device and an operating method of the display device are provided. The display device includes a first light emitting diode (LED), a first switch, a second switch, a second LED, a third switch, and a first controller. A first terminal of the first switch receives a first electrical signal. A first terminal of the second switch receives a second electrical signal. A first terminal of the third switch receives a third electrical signal. Here, whether the first switch, the second switch, and the third switch are switched on or off is determined by whether the first LED and the second LED are damaged or not. The first controller is configured to detect whether the first LED and the second LED are damaged or not, generate the second electrical signal and the electrical signal, and generate a plurality of control signals controlling the first switch to the third switch.Type: GrantFiled: August 24, 2021Date of Patent: October 25, 2022Assignee: AU Optronics CorporationInventors: Ming-Chen Hsu, Hsiang-Yuan Hsieh, Min-Yao Lu, Chin-Tang Chuang
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Patent number: 11244617Abstract: A driving method applicable to a display device, in which the display device includes multiple pixel circuits, and the method includes: adjusting multiple control signals according to a first display data such that the pixel circuits generate a first frame; receiving a second display data generated after the display data; and adjusting the control signals according to a time duration of the first frame such that the pixel circuits generate a second frame, where brightness for each of the pixel circuits is proportional to a duty ratio of one of the corresponding control signals, and an increment for the duty ratio of one of the corresponding control signals in the second frame is negatively correlated to a difference between a ratio of a preset time period to the time duration of the first frame and a ratio of the preset time period to the time duration of the second frame.Type: GrantFiled: March 29, 2021Date of Patent: February 8, 2022Assignee: AU OPTRONICS CORPORATIONInventors: Peng-Bo Xi, Chen-Chi Lin, Chia-Che Hung, Cheng-Nan Yeh, Chin-Tang Chuang, En-Chih Liu
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Publication number: 20210383757Abstract: A display device and an operating method of the display device are provided. The display device includes a first light emitting diode (LED), a first switch, a second switch, a second LED, a third switch, and a first controller. A first terminal of the first switch receives a first electrical signal. A first terminal of the second switch receives a second electrical signal. A first terminal of the third switch receives a third electrical signal. Here, whether the first switch, the second switch, and the third switch are switched on or off is determined by whether the first LED and the second LED are damaged or not. The first controller is configured to detect whether the first LED and the second LED are damaged or not, generate the second electrical signal and the electrical signal, and generate a plurality of control signals controlling the first switch to the third switch.Type: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Applicant: Au Optronics CorporationInventors: Ming-Chen Hsu, Hsiang-Yuan Hsieh, Min-Yao Lu, Chin-Tang Chuang
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Patent number: 11170710Abstract: A display module including display pixels, driving circuit and first switches is provided. The display pixels are arranged in columns and rows in the display area, and every display pixel includes sub-pixels. The display pixels form pixel rows along the first direction, and the sub-pixels of the display pixels form sub-pixel columns along the second direction. The color of the light emitting from the sub-pixels of the same sub-pixel column are substantially the same. The first direction and the second direction are substantially perpendicular. The driving circuit includes signal connectors, and every signal connector connects one of the pixel rows. The first switch is connected between a power source and one of the pixel rows, transmitting driving signal. The first switch is controlled by the driving circuit. A display device and a driving method are also provided.Type: GrantFiled: April 1, 2020Date of Patent: November 9, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Hsiang-Yuan Hsieh, Min-Yao Lu, Ming-Chen Hsu, Chin-Tang Chuang
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Patent number: 11138933Abstract: A display device and an operating method of the display device are provided. The display device includes a first light emitting diode (LED), a first switch, a second switch, a second LED, a third switch, and a first controller. A first terminal of the first switch receives a first electrical signal. A first terminal of the second switch receives a second electrical signal. A first terminal of the third switch receives a third electrical signal. Here, whether the first switch, the second switch, and the third switch are switched on or off is determined by whether the first LED and the second LED are damaged or not. The first controller is configured to detect whether the first LED and the second LED are damaged or not, generate the second electrical signal and the electrical signal, and generate a plurality of control signals controlling the first switch to the third switch.Type: GrantFiled: November 10, 2019Date of Patent: October 5, 2021Assignee: Au Optronics CorporationInventors: Ming-Chen Hsu, Hsiang-Yuan Hsieh, Min-Yao Lu, Chin-Tang Chuang
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Patent number: 10977985Abstract: A display device and a driving method thereof are provided. The display device includes a first light-emitting diode, a first controller, a second light-emitting diode, and a second controller. The first controller has a first current source. The second controller has a second current source, wherein the first current source is coupled to a coupling point of the second light-emitting diode and the second current source. When the first light-emitting diode is normal, the first current source provides a first driving current to drive the first light-emitting diode. When the first light-emitting diode is open, the first current source stops providing the first driving current, and the second current source provides a second driving current to drive the second light-emitting diode.Type: GrantFiled: July 4, 2019Date of Patent: April 13, 2021Assignee: Au Optronics CorporationInventors: Yi-Hsun Yang, Hsiang-Yuan Hsieh, Chin-Tang Chuang
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Patent number: 10861382Abstract: A pixel circuit includes a first lighting circuit, a second lighting circuit, and a compensation circuit. A first light emitting element of the first lighting circuit receives a first driving current when the first transistor switch of the first lighting circuit is turned on. The second light emitting element of the second light emitting circuit receives a second driving current when the second transistor switch of the second light emitting circuit is turned on. When the first light emitting element and the second light emitting element are driven by the first driving current and the second driving current, the compensation circuit provides a compensation current to the first light emitting element or the second light emitting element according to a difference in impedance between the first light emitting circuit and the second light emitting circuit.Type: GrantFiled: October 3, 2019Date of Patent: December 8, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Hsiang-Yuan Hsieh, Min-Yao Lu, Ming-Chen Hsu, Chin-Tang Chuang
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Publication number: 20200349885Abstract: A display module including display pixels, driving circuit and first switches is provided. The display pixels are arranged in columns and rows in the display area, and every display pixel includes sub-pixels. The display pixels form pixel rows along the first direction, and the sub-pixels of the display pixels form sub-pixel columns along the second direction. The color of the light emitting from the sub-pixels of the same sub-pixel column are substantially the same. The first direction and the second direction are substantially perpendicular. The driving circuit includes signal connectors, and every signal connector connects one of the pixel rows. The first switch is connected between a power source and one of the pixel rows, transmitting driving signal. The first switch is controlled by the driving circuit. A display device and a driving method are also provided.Type: ApplicationFiled: April 1, 2020Publication date: November 5, 2020Inventors: Hsiang-Yuan Hsieh, Min-Yao Lu, Ming-Chen Hsu, Chin-Tang Chuang
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Publication number: 20200251046Abstract: A pixel circuit includes a first lighting circuit, a second lighting circuit, and a compensation circuit. A first light emitting element of the first lighting circuit receives a first driving current when the first transistor switch of the first lighting circuit is turned on. The second light emitting element of the second light emitting circuit receives a second driving current when the second transistor switch of the second light emitting circuit is turned on. When the first light emitting element and the second light emitting element are driven by the first driving current and the second driving current, the compensation circuit provides a compensation current to the first light emitting element or the second light emitting element according to a difference in impedance between the first light emitting circuit and the second light emitting circuit.Type: ApplicationFiled: October 3, 2019Publication date: August 6, 2020Inventors: Hsiang-Yuan HSIEH, Min-Yao LU, Ming-Chen HSU, Chin-Tang CHUANG
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Publication number: 20200202769Abstract: A display device and a driving method thereof are provided. The display device includes a first light-emitting diode, a first controller, a second light-emitting diode, and a second controller. The first controller has a first current source. The second controller has a second current source, wherein the first current source is coupled to a coupling point of the second light-emitting diode and the second current source. When the first light-emitting diode is normal, the first current source provides a first driving current to drive the first light-emitting diode. When the first light-emitting diode is open, the first current source stops providing the first driving current, and the second current source provides a second driving current to drive the second light-emitting diode.Type: ApplicationFiled: July 4, 2019Publication date: June 25, 2020Applicant: Au Optronics CorporationInventors: Yi-Hsun Yang, Hsiang-Yuan Hsieh, Chin-Tang Chuang
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Publication number: 20200193902Abstract: A display device and an operating method of the display device are provided. The display device includes a first light emitting diode (LED), a first switch, a second switch, a second LED, a third switch, and a first controller. A first terminal of the first switch receives a first electrical signal. A first terminal of the second switch receives a second electrical signal. A first terminal of the third switch receives a third electrical signal. Here, whether the first switch, the second switch, and the third switch are switched on or off is determined by whether the first LED and the second LED are damaged or not. The first controller is configured to detect whether the first LED and the second LED are damaged or not, generate the second electrical signal and the electrical signal, and generate a plurality of control signals controlling the first switch to the third switch.Type: ApplicationFiled: November 10, 2019Publication date: June 18, 2020Applicant: Au Optronics CorporationInventors: Ming-Chen Hsu, Hsiang-Yuan Hsieh, Min-Yao Lu, Chin-Tang Chuang