Patents by Inventor Che-Wei Yeh
Che-Wei Yeh 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: 20240428722Abstract: A light-emitting-diode driver structure applicable to driving a display panel and operation method thereof are provided. The LED driver structure includes at least one LED driving group, and the LED driving group is composed of a plurality of LED driving circuits which are serially connected in cascade. Each LED driving circuit of the LED driving group receives a data input signal in common. Upon receiving control signals, output signals are generated to drive the display panel. The multi-point driving circuit scheme can be fully or partially applied in the driver structure as required. In addition, a plurality of enable signals can be further adopted to activate each LED driving circuit, for avoiding the FIFO register used in the prior arts. By employing the disclosed technical contents, the present invention is effective in reducing both redundant power waste and circuit layout area of a conventional LED driver.Type: ApplicationFiled: September 14, 2023Publication date: December 26, 2024Inventors: CHE-WEI YEH, YU-HSIANG WANG, HO-CHUN CHANG, PO-HSIANG FANG
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Patent number: 12142245Abstract: A control system includes a plurality of driving circuits coupled in series, which include a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a first flag signal selector. The first transmitter is coupled to the first receiver, and the first flag signal selector is coupled between the first receiver and the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver, a second transmitter and a second flag signal selector. The second transmitter is coupled to the second receiver, and the second flag signal selector is coupled between the second receiver and the second transmitter.Type: GrantFiled: September 14, 2022Date of Patent: November 12, 2024Assignee: NOVATEK Microelectronics Corp.Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu, Yi-Yang Tsai, Po-Hsiang Fang
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Patent number: 12142190Abstract: A display control system for controlling a display panel having a plurality of display zones includes a main controller, a plurality of display driver circuits and a plurality of memories. Each of the display driver circuits is coupled to a corresponding display zone among the plurality of display zones, to control the corresponding display zone. Each of the memories is coupled to a corresponding display driver circuit among the plurality of display driver circuits, to store a compensation data for the corresponding display zone controlled by the corresponding display driver circuit. The plurality of display driver circuits are cascaded through a plurality of first transmission channels and connected through at least one second transmission channel, and each of the first transmission channels is coupled between two of the plurality of display driver circuits or between one of the plurality of display driver circuits and the main controller.Type: GrantFiled: November 29, 2023Date of Patent: November 12, 2024Assignee: NOVATEK Microelectronics Corp.Inventors: Chieh-An Lin, Chun-Wei Kang, Po-Hsiang Fang, Keko-Chun Liang, Jhih-Siou Cheng, Nien-Tsung Hsueh, Che-Wei Yeh, Yu-Hsiang Wang
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Publication number: 20240369927Abstract: The disclosure provides a positive photoresist composition, comprising: a (A) polyimide resin, a (B) photo active compound and a (C) solvent. The (A) polyimide resin is obtained by a polymerization reaction of a (a) diamine and a (b) tetracarboxylic dianhydride, and has a structural unit of formula (1); wherein, Ar1 in the formula (1) is a tetravalent organic group, Ar2 is a bivalent organic group, and Ar1 is a group of formula (B-1), formula (B-2), formula (B-3) or a combination thereof, and Ar2 is at least a group of formula (A-1), formula (A-2) or a combination thereof. Furthermore, Ar2 can further be a group of formula (A-3), formula (A-4), formula (A-5) or a combination thereof. The present disclosure further provides a negative photoresist pattern lithography process method and a photoresist pattern thereof.Type: ApplicationFiled: May 3, 2024Publication date: November 7, 2024Inventors: Kuo Chu Yeh, Che Wei Chang, Tz Jin Yang, Ming Che Chung
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Publication number: 20240314969Abstract: A centrifugal fan module is provided. The centrifugal fan module includes a housing, a blade unit, a heat sink and a vapor chamber. The housing includes a bottom cover, a sidewall, a top cover and an outlet structure, wherein the bottom cover is connected to the bottom of the sidewall, the top cover is connected to the top of the sidewall, and the outlet structure is connected to the top cover and the sidewall. The blade unit is disposed in the housing, wherein the blade unit is located between the bottom cover and the top cover. The heat sink is disposed on the vapor chamber, the heat sink is located between the vapor chamber and the top cover, and the heat sink is located between the outlet structure and the blade unit.Type: ApplicationFiled: June 30, 2023Publication date: September 19, 2024Inventors: Hui-Lun CHIN, Pai-Yu HSIAO, Che-Wei LEE, Ching-Hsien YEH, Chih-Wei CHAN
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Patent number: 11974371Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.Type: GrantFiled: July 29, 2021Date of Patent: April 30, 2024Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Yu-Hsiang Wang, Che-Wei Yeh, Keko-Chun Liang, Yong-Ren Fang, Yi-Chuan Liu
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Patent number: 11854471Abstract: The present disclosure provides a method for a display driver system and a display driver system.Type: GrantFiled: December 5, 2022Date of Patent: December 26, 2023Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Hsu-Chih Wei, Po-Hsiang Fang, Keko-Chun Liang, Che-Wei Yeh, Ju-Lin Huang
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Patent number: 11824966Abstract: A transmitter is configured to transmit a series of command signals and a series of data signals. The transmitter includes a serializer and a multiplexer. The serializer is configured to generate the series of data signals. The multiplexer, coupled to the serializer, is configured to selectively output the series of command signals or the series of data signals.Type: GrantFiled: January 31, 2021Date of Patent: November 21, 2023Assignee: NOVATEK Microelectronics Corp.Inventors: Yong-Ren Fang, Yu-Hsiang Wang, Che-Wei Yeh
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Patent number: 11749168Abstract: The disclosure provides a data receiver, including a first capacitor, a second capacitor, a first inverter and a second inverter. The first capacitor has a first terminal and a second terminal, and the first terminal receives a first input signal. The second capacitor has a third terminal and a fourth terminal, and the third terminal receives a second input signal. The first inverter has a first input terminal and a first output terminal. The second inverter has a second input terminal and a second output terminal. The first input terminal and the second output terminal are coupled to the second terminal of the first capacitor, and the second input terminal and the first output terminal are coupled to the fourth terminal of the second capacitor. The first output terminal generates a first output signal with a first output voltage, and the second output terminal generates a second output signal with a second output voltage.Type: GrantFiled: July 4, 2022Date of Patent: September 5, 2023Assignee: Novatek Microelectronics Corp.Inventors: Ho-Chun Chang, Che-Wei Yeh, Yu-Hsiang Wang, Keko-Chun Liang
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Publication number: 20230184619Abstract: Provided is an underground pipe leak detection system, including a sensing device, a storage device, and a processing device. The sensing device is used for collecting a voice signal from an underground pipe during a time period. The storage device is used for storing a voice dataset, and storing the voice signal transmitted by the sensing device. The processing device may access the storage device. The processing device is configured to execute the following operations: training a classification model using the voice dataset; extracting features of the voice signal; inputting the features of the voice signal into the classification model that has been trained to determine if there is a leak in the underground pipe.Type: ApplicationFiled: February 23, 2022Publication date: June 15, 2023Inventors: Sheng-Cyuan FAN, Che-Wei YEH, Wun-Sheng HUANG, Long HE, Chien-Cheng CHU, Hsin-Yu CHIU, Feng-Jie TSAI, Fu-Te HSU
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Patent number: 11659136Abstract: A data conversion device includes a storage circuit and a frequency tuning circuit. The storage circuit is configured to store a pixel data in a high definition multimedia interface (HDMI) signal according to a first clock, and output an image data according to a second clock. The frequency tuning circuit is configured to adjust the second clock according to a control signal and the second clock in the HDMI signal, and transmit the adjusted second clock to the storage circuit.Type: GrantFiled: March 31, 2021Date of Patent: May 23, 2023Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Che-Wei Yeh, Chien-Hsun Lu, Zhan-Yao Gu, Chun-Chieh Chan
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Publication number: 20230005451Abstract: A control system includes a plurality of driving circuits coupled in series, which include a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a first flag signal selector. The first transmitter is coupled to the first receiver, and the first flag signal selector is coupled between the first receiver and the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver, a second transmitter and a second flag signal selector. The second transmitter is coupled to the second receiver, and the second flag signal selector is coupled between the second receiver and the second transmitter.Type: ApplicationFiled: September 14, 2022Publication date: January 5, 2023Applicant: NOVATEK Microelectronics Corp.Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu, Yi-Yang Tsai, Po-Hsiang Fang
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Patent number: 11545081Abstract: A LED driving apparatus with clock embedded cascaded LED drivers is introduced, including: a plurality of LED drivers, wherein the first stage LED driver receives an original data signal and outputs a first data signal, the Nth stage LED driver receives a (N?1)th data signal and outputs a Nth data signal. The Nth stage LED driver includes a clock data recovery circuit generating a recovery clock signal and a recovery data signal according to the (N?1)th data signal; and a first transmitter outputting the Nth data signal according to the recovery clock signal and the recovery data signal.Type: GrantFiled: April 14, 2022Date of Patent: January 3, 2023Assignee: Novatek Microelectronics Corp.Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
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Patent number: 11527195Abstract: A display control system includes a plurality of driver circuits connected in series. A driver circuit among the plurality of driver circuits includes a receiver, a duty cycle correction circuit and a transmitter. The receiver is configured to receive a first signal from a previous driver circuit among the plurality of driver circuits. The duty cycle correction circuit, coupled to the receiver, is configured to adjust a duty cycle of the first signal to generate a second signal. The transmitter, coupled to the duty cycle correction circuit, is configured to transmit the second signal to a next driver circuit among the plurality of driver circuits.Type: GrantFiled: April 22, 2021Date of Patent: December 13, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
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Patent number: 11521542Abstract: The present disclosure provides a method for a display driver system and a display driver system.Type: GrantFiled: November 20, 2020Date of Patent: December 6, 2022Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Hsu-Chih Wei, Po-Hsiang Fang, Keko-Chun Liang, Che-Wei Yeh, Ju-Lin Huang
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Patent number: 11509296Abstract: A clock generator includes a pulse generator and a duty cycle correction circuit. The pulse generator is configured to receive an input clock signal and generate a pulse signal according to the input clock signal. The duty cycle correction circuit, coupled to the pulse generator, is configured to adjust a duty cycle of the pulse signal to generate an output clock signal.Type: GrantFiled: April 25, 2021Date of Patent: November 22, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yi-Chuan Liu
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Patent number: 11493196Abstract: An assembly structure includes an outer joint assembly and an inner joint assembly. At least one terminal portion of the outer joint assembly is hollow to form an accommodating space, the outer joint assembly includes an outer casing and at least one elastic sheet, the elastic sheet has a fixed end and a free end, the fixed end is connected to the outer casing, and the free end is provided with a first engaging part. The outer surface of the inner joint assembly is provided with a second engaging part, the inner joint assembly is used to extend into the accommodating space, and the first engaging part and the second engaging part are used to engage with each other. Through the above design, the assembly structure has quick connect capability, which makes it more convenient for users to use.Type: GrantFiled: April 27, 2021Date of Patent: November 8, 2022Assignee: TAIWAN OASIS TECHNOLOGY CO., LTD.Inventors: Shih-Meng Liao, Che-Wei Yeh
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Publication number: 20220345123Abstract: A clock generator includes a pulse generator and a duty cycle correction circuit. The pulse generator is configured to receive an input clock signal and generate a pulse signal according to the input clock signal. The duty cycle correction circuit, coupled to the pulse generator, is configured to adjust a duty cycle of the pulse signal to generate an output clock signal.Type: ApplicationFiled: April 25, 2021Publication date: October 27, 2022Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yi-Chuan Liu
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Publication number: 20220343833Abstract: A display control system includes a plurality of driver circuits connected in series. A driver circuit among the plurality of driver circuits includes a receiver, a duty cycle correction circuit and a transmitter. The receiver is configured to receive a first signal from a previous driver circuit among the plurality of driver circuits. The duty cycle correction circuit, coupled to the receiver, is configured to adjust a duty cycle of the first signal to generate a second signal. The transmitter, coupled to the duty cycle correction circuit, is configured to transmit the second signal to a next driver circuit among the plurality of driver circuits.Type: ApplicationFiled: April 22, 2021Publication date: October 27, 2022Inventors: Che-Wei Yeh, Keko-Chun Liang, Yu-Hsiang Wang, Yong-Ren Fang, Yi-Chuan Liu
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Publication number: 20220341578Abstract: An assembly structure includes an outer joint assembly and an inner joint assembly. At least one terminal portion of the outer joint assembly is hollow to form an accommodating space, the outer joint assembly includes an outer casing and at least one elastic sheet, the elastic sheet has a fixed end and a free end, the fixed end is connected to the outer casing, and the free end is provided with a first engaging part. The outer surface of the inner joint assembly is provided with a second engaging part, the inner joint assembly is used to extend into the accommodating space, and the first engaging part and the second engaging part are used to engage with each other. Through the above design, the assembly structure has quick connect capability, which makes it more convenient for users to use.Type: ApplicationFiled: April 27, 2021Publication date: October 27, 2022Inventors: Shih-Meng Liao, Che-Wei Yeh