Patents by Inventor Chien-Hua Wu
Chien-Hua Wu 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: 11961814Abstract: In an embodiment, a device includes: a semiconductor device; and a redistribution structure including: a first dielectric layer; a first grounding feature on the first dielectric layer; a second grounding feature on the first dielectric layer; a first pair of transmission lines on the first dielectric layer, the first pair of transmission lines being laterally disposed between the first grounding feature and the second grounding feature, the first pair of transmission lines being electrically coupled to the semiconductor device; a second dielectric layer on the first grounding feature, the second grounding feature, and the first pair of transmission lines; and a third grounding feature extending laterally along and through the second dielectric layer, the third grounding feature being physically and electrically coupled to the first grounding feature and the second grounding feature, where the first pair of transmission lines extend continuously along a length of the third grounding feature.Type: GrantFiled: January 31, 2022Date of Patent: April 16, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chien-Hsun Chen, Shou-Yi Wang, Jiun Yi Wu, Chung-Shi Liu, Chen-Hua Yu
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Publication number: 20240096812Abstract: A method of forming a semiconductor device includes arranging a semi-finished substrate, which has been tested and is known to be good, on a carrier substrate. Encapsulating the semi-finished substrate in a first encapsulant and arranging at least one semiconductor die over the semi-finished substrate. Electrically coupling at least one semiconductor component of the at least one semiconductor die to the semi-finished substrate and encasing the at least one semiconductor die and portions of the first encapsulant in a second encapsulant. Removing the carrier substrate from the semi-finished substrate and bonding a plurality of external contacts to the semi-finished substrate.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Jiun Yi Wu, Chen-Hua Yu, Chung-Shi Liu, Chien-Hsun Lee
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Publication number: 20240079758Abstract: An electronic device includes a metal back cover, a metal frame, and a first, second, third, and fourth radiators. The metal frame includes a discrete part and two connection parts. The connection parts are located by two sides of the discrete part, separated from the discrete part, and connected to the metal back cover. A U-shaped slot is formed between the discrete part and the metal back cover and between the discrete part and the connection parts. The first radiator is separated from the discrete part and includes a feed end. The second, third, and fourth radiators are connected to the discrete part and the metal back cover. The third radiator is located between the first and second radiators. The first radiator is located between the third and fourth radiators. The discrete part and the first, second, third, and fourth radiators form an antenna module together.Type: ApplicationFiled: August 2, 2023Publication date: March 7, 2024Applicant: PEGATRON CORPORATIONInventors: Chien-Yi Wu, Chao-Hsu Wu, Chih-Wei Liao, Hau Yuen Tan, Shih-Keng Huang, Wen-Hgin Chuang, Lin-Hsu Chiang, Chang-Hua Wu, Han-Wei Wang, Chun-Jung Hu
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Patent number: 10958057Abstract: An electronic device includes a case engaged with a cable fixing device. The cable fixing device includes at least one first restricting portion and a fixing frame which are connected to the case. The fixing frame could be moved relative to the case between a first position and a second position. The fixing frame has at least one hollow portion for being passed through by a cable and at least one second restricting portion disposed on a peripheral edge of the hollow portion. When the fixing frame is located in the first position, the second restricting portion is away from the first restricting portion. When the fixing frame is located in the second position, the second restricting portion is closer to the first restricting portion than the fixing frame located in the first position. The second restricting portion and first restricting portion jointly restrict a position of the cable.Type: GrantFiled: March 25, 2020Date of Patent: March 23, 2021Assignee: ACCTON TECHNOLOGY CORPORATIONInventor: Chien-Hua Wu
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Patent number: 10732215Abstract: Systems and methods for detecting the presence and/or location of defects (e.g., incomplete solders, broken cables, misconnections, defective sockets, opens, shorts, etc.) along electrical lines are described. The systems and methods described herein may use time-domain reflectometry (TDR), a measurement technique used to determine the characteristics of electrical lines by observing reflected waveforms. TDR may be performed in some embodiments by determining the times when a first event and a second event occur, and by determining the space traveled by a probe signal based on these times. The first event may occur when a first signal transition crosses a first threshold and the second event may occur when a second signal transition crosses a second threshold, where the second signal transition may arise in response to the first signal transition reflecting against a defect along the electrical line.Type: GrantFiled: June 4, 2018Date of Patent: August 4, 2020Assignee: MEDIATEK Singapore Pte. Ltd.Inventors: Henry Arnold Park, Tamer Mohammed Ali, Shih-Hao Huang, Chien-Hua Wu
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Patent number: 10594311Abstract: A driver circuit is provided. The driver circuit includes a differential driver, a first feedback passive circuit and a second feedback passive circuit. The differential driver includes a first half circuit and a second half circuit. The first half circuit has a first input point and a first output point. The second half circuit has a second input point and a second output point. The first feedback passive circuit is coupled to the second input point and the first output point. The second feedback passive circuit is coupled to the first input point and the second output point.Type: GrantFiled: March 21, 2017Date of Patent: March 17, 2020Assignee: MEDIATEK INC.Inventor: Chien-Hua Wu
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Publication number: 20190195936Abstract: Systems and methods for detecting the presence and/or location of defects (e.g., incomplete solders, broken cables, misconnections, defective sockets, opens, shorts, etc.) along electrical lines are described. The systems and methods described herein may use time-domain reflectometry (TDR), a measurement technique used to determine the characteristics of electrical lines by observing reflected waveforms. TDR may be performed in some embodiments by determining the times when a first event and a second event occur, and by determining the space traveled by a probe signal based on these times. The first event may occur when a first signal transition crosses a first threshold and the second event may occur when a second signal transition crosses a second threshold, where the second signal transition may arise in response to the first signal transition reflecting against a defect along the electrical line.Type: ApplicationFiled: June 4, 2018Publication date: June 27, 2019Applicant: MEDIATEK Singapore Pte. Ltd.Inventors: Henry Arnold Park, Tamer Mohammed Ali, Shih-Hao Huang, Chien-Hua Wu
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Publication number: 20180131360Abstract: A driver circuit is provided. The driver circuit includes a differential driver, a first feedback passive circuit and a second feedback passive circuit. The differential driver includes a first half circuit and a second half circuit. The first half circuit has a first input point and a first output point. The second half circuit has a second input point and a second output point. The first feedback passive circuit is coupled to the second input point and the first output point. The second feedback passive circuit is coupled to the first input point and the second output point.Type: ApplicationFiled: March 21, 2017Publication date: May 10, 2018Inventor: Chien-Hua Wu
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Patent number: 9871539Abstract: A driver circuit for receiving a data input and generating an output signal to a termination element according to at least the first data input is provided. The driver circuit includes a first output terminal, a current mode drive unit and a voltage mode drive unit. The current mode drive unit is arranged for selectively outputting a first reference current from the first output terminal to the termination element according to the first data input, and selectively receiving the first reference current through the first output terminal according to the first data input. The voltage mode drive unit is arranged for coupling one of a first reference voltage and a second reference voltage different from the second reference voltage to the first output terminal according to the first data input.Type: GrantFiled: March 14, 2016Date of Patent: January 16, 2018Assignee: MEDIATEK INC.Inventors: Chien-Hua Wu, Yan-Bin Luo
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Publication number: 20170148558Abstract: An inductor module comprising: a first inductor, comprising a first inductor area; and a second inductor, comprising a second inductor area. A first overlapped area of the first inductor area and a second overlapped area of the second inductor area are overlapped. The second overlapped area comprises at least one first magnetic direction area and at least one second magnetic direction area. A ratio between a size of the first magnetic direction area and a size of the second magnetic direction area is a predetermined ratio such that a coupling effect between the first inductor and the second inductor is lower or equals to a predetermined value.Type: ApplicationFiled: April 22, 2016Publication date: May 25, 2017Inventors: Huan-Sheng Chen, Yen-Ju Lu, Chung-Shi Lin, Chien-Hua Wu, Yan-Bin Luo
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Patent number: 9590595Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is provided, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; at least one current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and at least one voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to the second bit.Type: GrantFiled: August 12, 2015Date of Patent: March 7, 2017Assignee: MEDIATEK INC.Inventors: Yan-Bin Luo, Chien-Hua Wu, Chung-Shi Lin, Chih-Hsien Lin
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Patent number: 9588859Abstract: A detecting circuit includes: a testing signal generator, arranged to selectively generate a testing signal having a first signal edge or a second signal edge to a connecting port; and a detector, arranged to detect a first detect signal on the connecting port after the testing signal having the first signal edge is coupled to the connecting port, and to detect a second detect signal on the connecting port after the testing signal having the second signal edge is coupled to the connecting port; wherein the detector is further arranged to determine if an external circuit element is coupled between the connecting port and a reference voltage according to the first detect signal and the second detect signal.Type: GrantFiled: November 13, 2013Date of Patent: March 7, 2017Assignee: MEDIATEK INC.Inventors: Chien-Hua Wu, Kuan-Hua Chao
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Patent number: 9590610Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is disclosed, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals, arranged for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; a current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and a voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to at least the second bit.Type: GrantFiled: August 11, 2015Date of Patent: March 7, 2017Assignee: MEDIATEK INC.Inventors: Yan-Bin Luo, Chien-Hua Wu, Chung-Shi Lin, Chih-Hsien Lin
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Publication number: 20160204768Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is provided, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; at least one current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and at least one voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to the second bit.Type: ApplicationFiled: August 12, 2015Publication date: July 14, 2016Inventors: Yan-Bin Luo, Chien-Hua Wu, Chung-Shi Lin, Chih-Hsien Lin
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Publication number: 20160197598Abstract: A driver circuit for receiving a data input and generating an output signal to a termination element according to at least the first data input is provided. The driver circuit includes a first output terminal, a current mode drive unit and a voltage mode drive unit. The current mode drive unit is arranged for selectively outputting a first reference current from the first output terminal to the termination element according to the first data input, and selectively receiving the first reference current through the first output terminal according to the first data input. The voltage mode drive unit is arranged for coupling one of a first reference voltage and a second reference voltage different from the second reference voltage to the first output terminal according to the first data input.Type: ApplicationFiled: March 14, 2016Publication date: July 7, 2016Inventors: Chien-Hua Wu, Yan-Bin Luo
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Publication number: 20160191037Abstract: A driver circuit for receiving input data and generating an output signal to a termination element is disclosed, wherein the input data has a first bit and second bit, and the driver circuit includes: a pair of differential output terminals, arranged for outputting the output signal, wherein the pair of differential output terminals has a first output terminal and a second output terminal; a current mode drive unit, coupled to the pair of differential output terminals, for outputting a current from one of the first output terminal and the second output terminal, and receiving the current from the other of the first output terminal and the second output terminal according to the first bit; and a voltage mode drive unit, coupled to the pair of differential output terminals, for providing voltages to the first output terminal and the second output terminal according to at least the second bit.Type: ApplicationFiled: August 11, 2015Publication date: June 30, 2016Inventors: Yan-Bin Luo, Chien-Hua Wu, Chung-Shi Lin, Chih-Hsien Lin
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Patent number: 9312846Abstract: A driver circuit for receiving a data input and generating an output signal according to at least the data input is provided. The driver circuit includes a pair of differential output terminals, a current mode drive unit and a voltage mode drive unit. The pair of differential output terminals has a first output terminal and a second output terminal. The current mode drive unit is arranged for outputting a first reference current from one of the first and second output terminals and receiving the first reference current from the other of the first and the second output terminals according to the first data input. The voltage mode drive unit is arranged for coupling a first reference voltage to one of the first and the second output terminals and coupling a second reference voltage to the other of the first and the second output terminals according to the first data input.Type: GrantFiled: May 19, 2014Date of Patent: April 12, 2016Assignee: MEDIATEK INC.Inventors: Chien-Hua Wu, Yan-Bin Luo
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Patent number: 8964410Abstract: A transformer has two magnetic cores, at least one primary winding unit mounted in the magnetic cores, at least one secondary winding unit mounted in the magnetic cores and two rectifying circuit boards externally mounted beside the magnetic cores. An AC voltage output from the secondary winding unit is transmitted to and rectified by the rectifying circuit board. Therefore, the size of the transformer is compact, and heat energy generated by electronic elements mounted on the rectifying circuit board is effectively dissipated to maintain normal operation of the transformer. Further, since the transmission path from the secondary winding unit to the rectifying circuit board is short, energy loss is reasonably reduced when the transformer is operated under a high frequency situation or a larger current mode.Type: GrantFiled: December 6, 2012Date of Patent: February 24, 2015Assignee: Acbel Polytech Inc.Inventors: Shun-Te Chang, Chien-Hua Wu, Chia-An Yeh, Hsiang-Yu Hung
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Publication number: 20150022243Abstract: A driver circuit for receiving a data input and generating an output signal according to at least the data input is provided. The driver circuit includes a pair of differential output terminals, a current mode drive unit and a voltage mode drive unit. The pair of differential output terminals has a first output terminal and a second output terminal. The current mode drive unit is arranged for outputting a first reference current from one of the first and second output terminals and receiving the first reference current from the other of the first and the second output terminals according to the first data input. The voltage mode drive unit is arranged for coupling a first reference voltage to one of the first and the second output terminals and coupling a second reference voltage to the other of the first and the second output terminals according to the first data input.Type: ApplicationFiled: May 19, 2014Publication date: January 22, 2015Applicant: MEDIATEK INC.Inventors: Chien-Hua Wu, Yan-Bin Luo
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Publication number: 20140145708Abstract: A detecting circuit includes: a testing signal generator, arranged to selectively generate a testing signal having a first signal edge or a second signal edge to a connecting port; and a detector, arranged to detect a first detect signal on the connecting port after the testing signal having the first signal edge is coupled to the connecting port, and to detect a second detect signal on the connecting port after the testing signal having the second signal edge is coupled to the connecting port; wherein the detector is further arranged to determine if an external circuit element is coupled between the connecting port and a reference voltage according to the first detect signal and the second detect signal.Type: ApplicationFiled: November 13, 2013Publication date: May 29, 2014Applicant: MEDIATEK INC.Inventors: Chien-Hua Wu, Kuan-Hua Chao