Patents by Inventor Wei-Hsiang Hung
Wei-Hsiang Hung 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: 11982866Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.Type: GrantFiled: December 15, 2022Date of Patent: May 14, 2024Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Liang-Ting Ho, Chen-Er Hsu, Yi-Liang Chan, Fu-Lai Tseng, Fu-Yuan Wu, Chen-Chi Kuo, Ying-Jen Wang, Wei-Han Hsia, Yi-Hsin Tseng, Wen-Chang Lin, Chun-Chia Liao, Shou-Jen Liu, Chao-Chun Chang, Yi-Chieh Lin, Shang-Yu Hsu, Yu-Huai Liao, Shih-Wei Hung, Sin-Hong Lin, Kun-Shih Lin, Yu-Cheng Lin, Wen-Yen Huang, Wei-Jhe Shen, Chih-Shiang Wu, Sin-Jhong Song, Che-Hsiang Chiu, Sheng-Chang Lin
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Patent number: 11962239Abstract: A control circuit of a power converter and a control method thereof are provided. The control circuit includes an error amplifier, a controller, a digital filter, and a digital pulse width signal modulator. The error amplifying circuit is coupled to an output terminal of the power converter and provides a digital error signal. The controller provides a first working parameter corresponding to the first external control command when receiving a first external control command. The digital filter generates a current digital compensation value. The digital pulse width signal modulator generates a pulse width modulation signal. The controller provides a second working parameter corresponding to the second external control command when receiving a second external control command. The controller calculates a transition value according to the second working parameter and the current digital compensation value. The controller provides the second working parameter and the transition value to the digital filter.Type: GrantFiled: September 16, 2022Date of Patent: April 16, 2024Assignee: uPI Semiconductor Corp.Inventors: Yun-Kuo Lee, Wei-Hsiang Wang, Yen-Chih Lin, Wei-Hsiu Hung
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Patent number: 11948975Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a spacer around the gate structure; and forming a buffer layer adjacent to the gate structure. Preferably, the buffer layer includes a crescent moon shape and the buffer layer includes an inner curve, an outer curve, and a planar surface connecting the inner curve and an outer curve along a top surface of the substrate, in which the planar surface directly contacts the outer curve on an outer sidewall of the spacer.Type: GrantFiled: October 24, 2021Date of Patent: April 2, 2024Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Kai Hsu, Ssu-I Fu, Yu-Hsiang Hung, Wei-Chi Cheng, Jyh-Shyang Jenq
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Publication number: 20240081525Abstract: A multifunctional table includes a table body, a carrier member, and a holder. The table body includes a board and a support member connected to each other. The board has a table top and a groove. The carrier member is connected to the table body and includes a first slideway. The holder includes a slidable attaching portion and a holding portion connected to each other. The holding portion includes a first holding surface. The first holding surface corresponds to the groove when the slidable attaching portion is slidably attached to the first slideway in a first attached state. A holder includes a slidable attaching portion and a holding portion connected to each other. The holding portion includes a first holding surface and a second holding surface opposite to each other. The first holding surface and the second holding surface are asymmetrical about a central x axis of the holder.Type: ApplicationFiled: September 8, 2022Publication date: March 14, 2024Applicant: Nonet Inc.Inventors: Wilco Wijnand Soetman, Beico Chiu, Wei-Hsiang Hung, Chun-Yi Lu, Xiang-Yi Zhan
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Patent number: 10621905Abstract: An operational amplifier applicable to a display device is provided. The operational amplifier having multiple output stages. The operational amplifier includes an input stage, an output stage selection module and a plurality of output stages. The output stage selection module is coupled to the input stage. Each of the output stages is coupled to the output stage selection module and is coupleable to drive a corresponding one of a plurality of loads. The output stage selection module is configured to selectively couple or discouple each of the output stages respectively to the input stage according to a plurality of selection signal. Furthermore, a load driving apparatus and a grayscale voltage generating circuit are also provided.Type: GrantFiled: September 18, 2017Date of Patent: April 14, 2020Assignee: Novatek Microelectronics Corp.Inventors: Ji-Ting Chen, Wei-Hsiang Hung
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Patent number: 10057567Abstract: A method for video decoding includes: dividing a plurality of luma component data of a reference frame into a plurality of primary data and a plurality of secondary data, respectively stored in a first memory region and a second memory region; accessing the first memory region to perform a motion estimation; and accessing the second region to perform a luma motion compensation.Type: GrantFiled: December 17, 2012Date of Patent: August 21, 2018Assignee: MSTAR SEMICONDUCTOR, INC.Inventors: Wei-Hsiang Hung, Chia-Chiang Ho
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Publication number: 20180005554Abstract: An operational amplifier applicable to a display device is provided. The operational amplifier having multiple output stages. The operational amplifier includes an input stage, an output stage selection module and a plurality of output stages. The output stage selection module is coupled to the input stage. Each of the output stages is coupled to the output stage selection module and is coupleable to drive a corresponding one of a plurality of loads. The output stage selection module is configured to selectively couple or discouple each of the output stages respectively to the input stage according to a plurality of selection signal. Furthermore, a load driving apparatus and a grayscale voltage generating circuit are also provided.Type: ApplicationFiled: September 18, 2017Publication date: January 4, 2018Applicant: Novatek Microelectronics Corp.Inventors: Ji-Ting Chen, Wei-Hsiang Hung
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Patent number: 9792843Abstract: A load driving apparatus for driving a plurality of loads is provided. The load driving apparatus includes an output stage module, a load driving module, and an output stage selection module. The output stage module includes a plurality of output stages. Each of the output stages is coupled to a corresponding one of the loads. The load driving module is coupled to the output stage module and outputs a driving signal to drive one of the loads through the output stage module. The output stage selection module is coupled between the output stage module and the load driving module and selects one of the output stages in the output stage module, so that the load driving module drives the load which is coupled to the selected output stage through the selected output stage. Furthermore, a grayscale voltage generating circuit including the foregoing load driving apparatus is also provided.Type: GrantFiled: March 1, 2013Date of Patent: October 17, 2017Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Ji-Ting Chen, Wei-Hsiang Hung
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Patent number: 9142181Abstract: A display driver, which comprises: a first predetermined voltage level providing apparatus, for providing a first predetermined voltage level group comprising at least one first predetermined voltage level; a first image data providing apparatus, for outputting a first image data; and a detection controlling circuit, for determining if an output terminal of the first image data providing apparatus is pre-charged to the first predetermined voltage level according to a relation between an absolute value of a voltage level of the first image data and an absolute value of the first predetermined voltage level.Type: GrantFiled: August 12, 2013Date of Patent: September 22, 2015Assignee: NOVATEK Microelectronics Corp.Inventors: Chia-Hsun Kuo, Chia-Wei Su, Ji-Ting Chen, Shun-Hsun Yang, Wei-Hsiang Hung, Ying-Zu Lin, Li-Tang Lin
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Patent number: 9118287Abstract: An adaptive amplification circuit is provided, which includes an operational amplifier comprising a variable bias current source for providing a variable bias current for the operational amplifier, an equivalent circuit of the operational amplifier for receiving an input voltage and generating an output voltage according to the input voltage, and a bias control unit for generating a bias control signal to the variable bias current source according to the output voltage so as to adjust the variable bias current.Type: GrantFiled: August 20, 2013Date of Patent: August 25, 2015Assignee: NOVATEK Microelectronics Corp.Inventors: Xie-Ren Hsu, Chia-Hung Lin, Wei-Hsiang Hung
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Publication number: 20140320474Abstract: A display driver, which comprises: a first predetermined voltage level providing apparatus, for providing a first predetermined voltage level group comprising at least one first predetermined voltage level; a first image data providing apparatus, for outputting a first image data; and a detection controlling circuit, for determining if an output terminal of the first image data providing apparatus is pre-charged to the first predetermined voltage level according to a relation between an absolute value of a voltage level of the first image data and an absolute value of the first predetermined voltage level.Type: ApplicationFiled: August 12, 2013Publication date: October 30, 2014Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Chia-Hsun Kuo, Chia-Wei Su, Ji-Ting Chen, Shun-Hsun Yang, Wei-Hsiang Hung, Ying-Zu Lin, Li-Tang Lin
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Publication number: 20140078189Abstract: A load driving apparatus for driving a plurality of loads is provided. The load driving apparatus includes an output stage module, a load driving module, and an output stage selection module. The output stage module includes a plurality of output stages. Each of the output stages is coupled to a corresponding one of the loads. The load driving module is coupled to the output stage module and outputs a driving signal to drive one of the loads through the output stage module. The output stage selection module is coupled between the output stage module and the load driving module and selects one of the output stages in the output stage module, so that the load driving module drives the load which is coupled to the selected output stage through the selected output stage. Furthermore, a grayscale voltage generating circuit including the foregoing load driving apparatus is also provided.Type: ApplicationFiled: March 1, 2013Publication date: March 20, 2014Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Ji-Ting Chen, Wei-Hsiang Hung
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Patent number: 8638167Abstract: An operational amplifier includes an input stage, an output stage, an output enable switch, an internal capacitor, a coupling effect reduction circuit. The input stage provides an intermediate signal according to an input signal. The output stage, including an output node, provides a driving signal according to the intermediate signal. The output enable switch is turned on during an output enable period, having a start time point, to drive a load with the driving signal. The internal capacitor is coupled between the input stage and the output stage. The coupling effect reduction circuit, coupled between the internal capacitor and the output node or between the internal capacitor and the input stage, is turned off during an operational period starting from the start time point, to prevent coupling charge generated when the output enable switch is turned on from affecting operational voltage levels of the input stage.Type: GrantFiled: March 28, 2012Date of Patent: January 28, 2014Assignee: Novatek Microelectronics Corp.Inventors: Wei-Hsiang Hung, Chia-Hung Lin
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Publication number: 20130328631Abstract: An adaptive amplification circuit is provided, which includes an operational amplifier comprising a variable bias current source for providing a variable bias current for the operational amplifier, an equivalent circuit of the operational amplifier for receiving an input voltage and generating an output voltage according to the input voltage, and a bias control unit for generating a bias control signal to the variable bias current source according to the output voltage so as to adjust the variable bias current.Type: ApplicationFiled: August 20, 2013Publication date: December 12, 2013Applicant: NOVATEK Microelectronics Corp.Inventors: Xie-Ren Hsu, Chia-Hung Lin, Wei-Hsiang Hung
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Publication number: 20130301726Abstract: A method for video decoding includes: dividing a plurality of luma component data of a reference frame into a plurality of primary data and a plurality of secondary data, respectively stored in a first memory region and a second memory region; accessing the first memory region to perform a motion estimation; and accessing the second region to perform a luma motion compensation.Type: ApplicationFiled: December 17, 2012Publication date: November 14, 2013Applicant: MSTAR SEMICONDUCTOR, INC.Inventors: Wei-Hsiang Hung, Chia-Chiang Ho
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Patent number: 8542063Abstract: An adaptive amplification circuit is disclosed, which includes an operational amplifier including a variable bias current source for providing a variable bias current for the operational amplifier, a simulation unit for simulating operational characteristics of the operational amplifier and transforming a simulation input voltage to a simulation output voltage, and a bias control unit for generating a bias control signal to the variable bias current source according to the simulation output voltage so as to adjust the variable bias current.Type: GrantFiled: August 2, 2011Date of Patent: September 24, 2013Assignee: NOVATEK Microelectronics Corp.Inventors: Xie-Ren Hsu, Chia-Hung Lin, Wei-Hsiang Hung
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Patent number: 8456234Abstract: A bias current control method for an operational amplifier is disclosed, which includes detecting a slew rate operating signal, determining signal period length of the slew rate operating signal to generate a determination signal, and generating a high bias modulation signal or a low bias modulation signal to the operational amplifier according to the determination signal and the slew rate operating signal.Type: GrantFiled: June 2, 2011Date of Patent: June 4, 2013Assignee: NOVATEK Microelectronics Corp.Inventors: Wei-Hsiang Hung, Chia-Hung Lin
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Publication number: 20120249246Abstract: An operational amplifier includes an input stage, an output stage, an output enable switch, an internal capacitor, a coupling effect reduction circuit. The input stage provides an intermediate signal according to an input signal. The output stage, including an output node, provides a driving signal according to the intermediate signal. The output enable switch is turned on during an output enable period, having a start time point, to drive a load with the driving signal. The internal capacitor is coupled between the input stage and the output stage. The coupling effect reduction circuit, coupled between the internal capacitor and the output node or between the internal capacitor and the input stage, is turned off during an operational period starting from the start time point, to prevent coupling charge generated when the output enable switch is turned on from affecting operational voltage levels of the input stage.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Inventors: Wei-Hsiang Hung, Chia-Hung Lin
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Publication number: 20120200541Abstract: Provided is a driving method applicable to an LCD. Whether to perform polarity conversion on a plurality of frames is determined respectively. The frames are displayed, wherein in a unit time, the number of times of converting the polarities of the frames is smaller than the number of times of updating the frames.Type: ApplicationFiled: February 7, 2012Publication date: August 9, 2012Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Wei-Hsiang HUNG, Wei-Song HUANG
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Publication number: 20120161866Abstract: A bias current control method for an operational amplifier is disclosed, which includes detecting a slew rate operating signal, determining signal period length of the slew rate operating signal to generate a determination signal, and generating a high bias modulation signal or a low bias modulation signal to the operational amplifier according to the determination signal and the slew rate operating signal.Type: ApplicationFiled: June 2, 2011Publication date: June 28, 2012Inventors: Wei-Hsiang Hung, Chia-Hung Lin