Patents by Inventor Shih-Chieh Yang
Shih-Chieh Yang 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: 20240146205Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.Type: ApplicationFiled: September 23, 2023Publication date: May 2, 2024Inventors: Shin-Li Lin, He-Yi Shu, Shih-Jen Yang, Ta-Yung Yang, Yi-Min Shiu, Chih-Ching Lee, Yu-Chieh Hsieh, Chao-Chi Chen
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Patent number: 11973127Abstract: Semiconductor structures and method for forming the same are provide. The semiconductor structure includes a fin structure protruding from a substrate and a gate structure formed across the fin structure. The semiconductor structure further includes an Arsenic-doped region formed in the fin structure and a source/drain structure formed over the Arsenic-doped region. In addition, a bottommost portion of the Arsenic-doped region is lower than a bottommost portion of the source/drain structure.Type: GrantFiled: November 4, 2020Date of Patent: April 30, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shahaji B. More, Shih-Chieh Chang, Cheng-Han Lee, Huai-Tei Yang
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Publication number: 20240120388Abstract: Provided are structures and methods for forming structures with sloping surfaces of a desired profile. An exemplary method includes performing a first etch process to differentially etch a gate material to a recessed surface, wherein the recessed surface includes a first horn at a first edge, a second horn at a second edge, and a valley located between the first horn and the second horn; depositing an etch-retarding layer over the recessed surface, wherein the etch-retarding layer has a central region over the valley and has edge regions over the horns, and wherein the central region of the etch-retarding layer is thicker than the edge regions of the etch-retarding layer; and performing a second etch process to recess the horns to establish the gate material with a desired profile.Type: ApplicationFiled: January 18, 2023Publication date: April 11, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Li-Wei Yin, Tzu-Wen Pan, Yu-Hsien Lin, Jih-Sheng Yang, Shih-Chieh Chao, Chia Ming Liang, Yih-Ann Lin, Ryan Chia-Jen Chen
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Patent number: 11934027Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.Type: GrantFiled: June 21, 2022Date of Patent: March 19, 2024Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Chih-Wei Weng, Chia-Che Wu, Chien-Yu Kao, Hsiao-Hsin Hu, He-Ling Chang, Chao-Hsi Wang, Chen-Hsien Fan, Che-Wei Chang, Mao-Gen Jian, Sung-Mao Tsai, Wei-Jhe Shen, Yung-Ping Yang, Sin-Hong Lin, Tzu-Yu Chang, Sin-Jhong Song, Shang-Yu Hsu, Meng-Ting Lin, Shih-Wei Hung, Yu-Huai Liao, Mao-Kuo Hsu, Hsueh-Ju Lu, Ching-Chieh Huang, Chih-Wen Chiang, Yu-Chiao Lo, Ying-Jen Wang, Shu-Shan Chen, Che-Hsiang Chiu
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Publication number: 20240085867Abstract: A static auto-tuning system and method for controlling operation of a motor in a system. A speed reference signal is generated resulting in a speed response of the motor. Closed-loop feedback magnifies the rotating friction effect to an observable level. Inertia and rotating friction coefficient values of the system are estimated based on the speed frequency response and a virtual damping coefficient. A fixed low frequency speed signal may result in a first frequency response function for determining virtual damping, and a variable frequency excitation signal may result in a second frequency response function for determining the inertia and rotating friction characteristics. Closed-loop gains are determined based on these characteristics. The excitation signal may be sampled and a peak value in each interval may be identified and stored to produce an envelope of peak values for determining the gain response. Operation of the motor is controlled using the determined gains.Type: ApplicationFiled: October 14, 2022Publication date: March 14, 2024Applicant: Nidec Motor CorporationInventors: Athanasios Sarigiannidis, Bo-Ting Lyu, Yi-Chieh Chen, Shih-Chin Yang
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Publication number: 20230035446Abstract: Embodiments of the present invention provide GYN pathology simulation models for surgical training. These models are energy-compatible models emulating the tissue-based diseases of the female reproductive system to allow the surgical trainees and surgeons to practice advanced OB/GYN surgical skills. One simulated GYN model includes an electrically conductive elongated tube encapsulating a mass of non-conductive material. The elongated tube having a sidewall with an inner surface and outer surface extending between a proximal end and distal end. The sidewall is configured to have a cavity with a specific volume to yield an external protuberance when filled with the mass of non-conductive material. Another simulated GYN model includes a fluid-filled cystic body encapsulated within an electrically conductive bulbous hollow structure.Type: ApplicationFiled: August 1, 2022Publication date: February 2, 2023Inventors: Shih Chieh Yang, Tulsi Patel, Emma Stumpf, Oscar Raygan, Gregory K. Hofstetter
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Patent number: 10685827Abstract: A quadrupole ion trap apparatus includes a main electrode, a first end-cap electrode, a second end-cap electrode, and a phase-controlled waveform synthesizer. The phase-controlled waveform synthesizer generates a main RE waveform for the main electrode. The main RE waveform includes a plurality of sinuous waveform segments each of which is a part of a sine wave, and a plurality of phase conjunction segments each of which is non-sinuous. Each of the sinuous waveform segments is bridged to another sinuous waveform segment via one of the phase conjunction segments, so as to perform ordering of micro motions of sample ions trapped by the electrodes.Type: GrantFiled: May 8, 2018Date of Patent: June 16, 2020Assignee: ACROMASS TECHNOLOGIES, INC.Inventors: Chun-Yen Cheng, Yao-Hsin Tseng, Szu-Wei Chou, Yi-Kun Lee, Shih-Chieh Yang, Hung-Liang Hsieh
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Publication number: 20190228960Abstract: A quadrupole ion trap apparatus includes a main electrode, a first end-cap electrode, a second end-cap electrode, and a phase-controlled waveform synthesizer. The phase-controlled waveform synthesizer generates a main RE waveform for the main electrode. The main RE waveform includes a plurality of sinuous waveform segments each of which is a part of a sine wave, and a plurality of phase conjunction segments each of which is non-sinuous. Each of the sinuous waveform segments is bridged to another sinuous waveform segment via one of the phase conjunction segments, so as to perform ordering of micro motions of sample ions trapped by the electrodes.Type: ApplicationFiled: May 8, 2018Publication date: July 25, 2019Inventors: Chun-Yen CHENG, Yao-Hsin TSENG, Szu-Wei CHOU, Yi-Kun LEE, Shih-Chieh YANG, Hung-Liang HSIEH
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Patent number: 8624073Abstract: Non-basic and non-acidic homogeneous catalysts organo-metallic compound of the formula: M(OCH3)x wherein M is B, Na, Mg, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Al, Sn, Sb, Mo, Ag, and Cd and x is an integer from 2, 3 or 4 can catalyze transesterification of oils and fats having high free fatty acid content and with an acid number from 0.5 to 20, into biodiesel. B(OCH3)3 and Ge(OCH3)4, having low boiling points, are easily recovered from the biodiesel and glycerol phases and recycled for reuse. Continuous biodiesel production with the novel homogenous catalysts is achieved without the complicated and troublesome steps attendant with conventional processes using base or acid homogeneous catalyst. The high purity biodiesel is produced without acid-base neutralization, water wash, filtration, and solid disposal steps for removing the spent catalyst from the product streams associated with prior techniques.Type: GrantFiled: February 5, 2013Date of Patent: January 7, 2014Assignee: CPC Corporation, TaiwanInventors: Shih-Chieh Yang, Jen-Ray Chang, Maw-Tien Lee, Tzong-Bin Lin, Fu-Ming Lee, Cheng-Tsung Hong, Jeng-Cheng Lee
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Patent number: 8004833Abstract: The invention discloses a hinge including a first support, a second support, and a sensor. The first support includes a first electrical connection part. The second support includes a second electrical connection part and a protrusion part, and the protrusion part is insulated from the second electrical connection part. The second support is engaged to the first support, and the second electrical connection part detachably and electrically contacts the first electrical connection part. The sensor is respectively and electrically connected to the first electrical connection part and the second electrical connection part. When the first support rotates to a specific position relative to the second support, the first support and the protrusion part are detached. Meanwhile, the sensor correspondingly transmits a signal.Type: GrantFiled: December 15, 2008Date of Patent: August 23, 2011Assignee: Quanta Computer Inc.Inventors: Chen Tseng, Chao-Hsien Chan, Shih-Chieh Yang
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Publication number: 20090316348Abstract: The invention discloses a hinge including a first support, a second support, and a sensor. The first support includes a first electrical connection part. The second support includes a second electrical connection part and a protrusion part, and the protrusion part is insulated from the second electrical connection part. The second support is engaged to the first support, and the second electrical connection part detachably and electrically contacts the first electrical connection part. The sensor is respectively and electrically connected to the first electrical connection part and the second electrical connection part. When the first support rotates to a specific position relative to the second support, the first support and the protrusion part are detached. Meanwhile, the sensor correspondingly transmits a signal.Type: ApplicationFiled: December 15, 2008Publication date: December 24, 2009Inventors: Chen Tseng, Chao-Hsien Chan, Shih-Chieh Yang