Patents by Inventor An-Chi Liu

An-Chi Liu 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).

  • Publication number: 20230028873
    Abstract: A switched capacitor voltage converter circuit includes: a switched capacitor converter and a control circuit; wherein the control circuit adjusts operation frequencies and/or duty ratios of operation signals which control switches of the switched capacitor converter, so as to adjust a ratio of a first voltage to a second voltage to a predetermined ratio. When the control circuit decreases the duty ratios of the operation signals, if a part of the switches of the switched capacitor converter are turned ON, an inductor current flowing toward the second voltage is in a first state; if the inductor current continues to flow via a current freewheeling path, the inductor current flowing toward the second voltage becomes in a second state. A corresponding inductor is thereby switched between the first state and the second state to perform inductive power conversion.
    Type: Application
    Filed: June 11, 2022
    Publication date: January 26, 2023
    Inventors: Kuo-Chi Liu, Ta-Yung Yang, Chung-Lung Pai
  • Publication number: 20230017013
    Abstract: A semiconductor package structure and a method of manufacturing the same are provided. The semiconductor package structure includes a first electronic component, a second electronic component, and a reinforcement component. The reinforcement component is disposed above the first electronic component and the second electronic component. The reinforcement component is configured to reduce warpage.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 19, 2023
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: Meng-Wei HSIEH, Hsiu-Chi LIU
  • Patent number: 11558944
    Abstract: A method of producing a light animation with a rhythm of music is disclosed. An electronic device performs Fourier series transform on a sound signal of music produced from at least one musical instrument, so as to obtain a rhythm diagram of the sound signal. The operation to extract a rhythm change point of the rhythm diagram is performed, and when the intensity of the rhythm diagram has a change from increase to decrease, the time point of the change is used as the rhythm change point and the electronic device transmits a lighting control signal to a light emitting device. After receiving the lighting control signal, the light emitting device emits light based on the lighting control signal, and the light emitted from the light emitting device continues to form the light animation, thereby improving overall performance appreciation of the music for audiences.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: January 17, 2023
    Assignee: AMERICAN FUTURE TECHNOLOGY
    Inventor: You-Chi Liu
  • Patent number: 11551971
    Abstract: The invention provides a contact plug structure. The contact plug structure comprises a substrate and a dielectric layer, and a first contact hole located in the dielectric layer and penetrating into the substrate, the first contact hole has a first through hole portion located in the dielectric layer and a first groove located in the substrate, and the first through hole portion is communicated with the first groove, the maximum width of the first groove is larger than that of the first through hole portion in the direction parallel to the substrate surface. A barrier layer at least partially covering the sidewall of the first groove. A conductive pad layer is located on the bottom surface of the first groove. The conductive core layer is arranged on the conductive pad layer, and the barrier layer wraps the conductive pad layer and the conductive core layer.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: January 10, 2023
    Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: An-Chi Liu, Yi-Wang Jhan
  • Patent number: 11548117
    Abstract: A positioning structure of clamp may include a fixed clamp and a guiding rod, and the fixed clamp has a clamping portion and a connecting portion respectively at an upper portion and a lower portion thereof, and a guiding hole penetrates through the connecting portion. The guiding rod coupled into the guiding hole comprises a plurality of first through holes thereon, a first engaging hole and a second engaging hole respectively penetrating through two lateral sides of the connecting portion are respectively communicated with the guiding hole. A plurality of lock holes are formed at the lateral side of the connecting portion same as the second engaging hole. A positioning unit, connected to the connecting portion through the first engaging hole, the second engaging hole, and the lock holes, comprises a clamping block, an engaging block, a positioning bolt, a positioning block, a clamping plate and a rotating member.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 10, 2023
    Inventor: Sung-Chi Liu
  • Patent number: 11552547
    Abstract: A resonant switching power converter includes: at least one capacitor; switches coupled to the at least one capacitor; at least one charging inductor; at least one discharging inductor; and a zero current estimation circuit. The switches switch electrical connection relationships of capacitors according to an operation signal. The zero current estimation circuit estimates a time point at which a charging resonant current is zero during a charging process and/or estimate a time point at which a discharging resonant current is zero during at least one discharging process according to voltage differences across two ends of the charging inductor and/or the discharging inductor, so as to correspondingly generate a zero current estimation signal. The zero current estimation signal is adopted to generate the operation signal.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: January 10, 2023
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Kuo-Chi Liu, Ta-Yung Yang, Chung-Lung Pai
  • Patent number: 11546540
    Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: January 3, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Chieh Liu, Chih-Huan Wu, Yi-Hsien Ko, Han-Chi Liu
  • Publication number: 20220415903
    Abstract: A semiconductor structure includes a substrate comprising a peripheral region and a memory region defined thereon, a first dielectric layer disposed on the substrate, a second dielectric layer disposed on the first dielectric layer, an opening on the peripheral region of the substrate and having a lower portion through the first dielectric layer and an upper portion through the second dielectric layer, an interconnecting structure disposed on the second dielectric layer and two sides of the opening, a contact structure disposed in the lower portion of the opening, and a spacer covering a top surface of the contact structure, a sidewall of the second dielectric layer, and a sidewall of the interconnecting structure.
    Type: Application
    Filed: July 19, 2021
    Publication date: December 29, 2022
    Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Yi-Wang Jhan, Fu-Che Lee, Gang-Yi Lin, An-Chi Liu, Yifei Yan, Yu-Cheng Tung
  • Publication number: 20220415895
    Abstract: A semiconductor structure includes a substrate, a contact structure disposed on the substrate, and two first gate structures disposed on the substrate and at two sides of the first contact structure. The contact structure has a T-shaped cross-sectional profile having a first portion contacting the substrate and a second portion disposed on the first portion. A top surface of the second portion of the contact structure is flush with top surfaces of the two first gate structures.
    Type: Application
    Filed: July 19, 2021
    Publication date: December 29, 2022
    Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Yi-Wang Jhan, Fu-Che Lee, Gang-Yi Lin, An-Chi Liu, Yifei Yan, Yu-Cheng Tung
  • Publication number: 20220392398
    Abstract: An image display method of an image display device where display units are assembled in an accommodating space inside a base of a light-transmitting material in a stacked shape. The display units each include a light-transmitting board, and display elements are sequentially arranged on the board. There is a control unit on each board, which can control each display element to operate separately or synchronously, and each control unit is respectively electrically connected with at least one signal transmitter and receiver interface located on each board, available for electronic signal transmission with the transmission interface of the host system. The transmission interface is electrically connected to the processor and the processor is electrically connected to the signal input unit, and the electronic signal is transmitted to the display units of the base through the host system, so as to achieve the purpose of displaying static and dynamic images or music.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventor: You-Chi LIU
  • Publication number: 20220390646
    Abstract: An optical tracking device is used to track a target object. An outer surface of the target object is divided into a first region and a second region adjacent to each other, and a marker is disposed on the first region. The optical tracking device includes an optical sensor and an operation processor. The optical sensor has auto exposure function and is adapted to acquire a detection image containing at least one of the first region and the second region. The operation processor is electrically connected to the optical sensor and adapted to analyze variation of an exposure parameter of the auto exposure function for determining whether the first region is appeared in the detection image, so as to acquire an operation datum of the target object.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 8, 2022
    Inventors: Ching Geak CHAN, Chung-Ting Yang, Feng-Chi Liu
  • Publication number: 20220384431
    Abstract: The present disclosure relates to a semiconductor device and a method of forming the same, and the semiconductor device includes a substrate, a gate line and a stress layer. The substrate has a plurality of first fins protruded from the substrate. The gate line is disposed over the substrate, across the first fins, to further include a gate electrode and a gate dielectric layer, wherein the dielectric layer is disposed between the gate electrode layer and the first fins. The stress layer is disposed only on lateral surfaces of the first fins and on a top surface of the substrate, wherein a material of the stress layer is different from a material of the first fins.
    Type: Application
    Filed: July 29, 2021
    Publication date: December 1, 2022
    Applicant: Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Yi-Wang Jhan, Fu-Che Lee, Huixian LAI, Yu-Cheng Tung, An-Chi Liu, Gang-Yi Lin
  • Publication number: 20220374614
    Abstract: Embodiments of the present disclosure relate to a solution for translation verification and correction. According to the solution, a neural network is trained to determine an association degree among a group of words in a source or target language. The neural network can be used for translation verification and correction. According to the solution, a group of words in a source language and translations of the group of words in a target language are obtained. An association degree among the group of words and an association degree among the translations can be determined by using the trained neural network. Then, whether there is a wrong translation can be determined based on the association degrees. In some embodiments, corresponding methods, systems and computer program products are provided.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Guang Ming Zhang, Xiaoyang Yang, Hong Wei Jia, Mo Chi Liu, Yun Wang
  • Patent number: 11506961
    Abstract: A heat dissipation module includes a base, a cover and a plurality of heat dissipation fins. The cover is disposed on the base and forms an accommodation space with the base. The plurality of heat dissipation fins is disposed in the accommodation space. The cover includes a top, at least one side wall, a first opening and a second opening. The first opening and the second opening are disposed on the top or the at least one side wall. The at least one side wall surrounds the top and is connected to the base. The distances between the plurality of heat dissipation fins and one of the at least one side wall in a first direction are different. A projection apparatus is also provided, which includes a light source module, a light valve, the aforementioned heat dissipation module and a projection lens.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: November 22, 2022
    Assignee: Coretronic Corporation
    Inventors: Shi-Wen Lin, Wei-Chi Liu, Tsung-Ching Lin
  • Patent number: 11504043
    Abstract: Multiple circuits in a computing device can share one or more conductive elements. The use of the conductive element can vary by circuit, such as an antenna radiator for a radio frequency (RF) circuit or an electrode for an electrocardiography (ECG) circuit. The circuitry sharing a conductive element can utilize signals obtained over different frequency ranges. Those ranges can be used to select decoupling circuitry, or elements, that can enable the respective circuits to obtain signals over a respective frequency range, excluding signals over one or more other frequency ranges corresponding to other circuitry sharing the circuit. Such an approach allows for concurrent independent operation of the circuitry sharing a conductive element.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: November 22, 2022
    Assignee: FITBIT, INC.
    Inventors: Yonghua Wei, Faton Tefiku, Kevin Li, Man-Chi Liu, Lindsey Michelle Sunden, Peter W. Richards, Dennis Jacob McCray, Christos Kinezos Ioannou, Kyung Nim Noh
  • Publication number: 20220365724
    Abstract: A host system initiates an abort of a command that has been placed into a submission queue (SQ) of the host system. The host system identifies at least one of a first outcome and a second outcome. When the first outcome indicates that the command is not completed and the second outcome indicates that the SQ entry has been fetched from the SQ, the host system sends an abort request to a storage device, and issues a cleanup request to direct the host controller to reclaim host hardware resources allocated to the command. The host system adds a completion queue (CQ) entry to a CQ and sets an overall command status (OCS) value of the CQ entry based on at least one of the first outcome and the second outcome.
    Type: Application
    Filed: April 19, 2022
    Publication date: November 17, 2022
    Inventors: Chih-Chieh Chou, Chia-Chun Wang, Liang-Yen Wang, Chin Chin Cheng, Szu-Chi Liu
  • Publication number: 20220368218
    Abstract: A resonant switching power converter circuit including: a switching converter, a control circuit and a pre-charging circuit; wherein the control circuit controls a first switch of the switching converter in a pre-charging mode, so as to control electrical connections between a first power and at least one of plural capacitors of the switching converter, and to control other switches of the switching converter, so as to control the pre-charging circuit to charge at least one capacitor to a predetermined voltage; wherein in a start-up mode, the plural switches control electrical connections of the capacitors according to first and second operation signals, such that after the pre-charging mode ends, the switching converter subsequently operates in the start-up mode; wherein in the start-up mode, the first and second operation signals have respective ON periods, and the time lengths of the ON periods increase gradually.
    Type: Application
    Filed: April 13, 2022
    Publication date: November 17, 2022
    Inventors: Kuo-Chi Liu, Ta-Yung Yang, Chung-Lung Pai
  • Publication number: 20220369442
    Abstract: Method of using stereo recording to control the flashing of multiple lamps includes steps of: recording sound sources generated by stereo sound source venue or an electronic device and storing the recorded analog signal in audio signal sampling unit of signal processing device, then amplifying analog signal converting into a digital signal, then separating digital signal into left and right channel signals and enhancing sound signal and then converting sound signal into a light flashing formula to obtain a light flashing parameter value, and then transmitting control commands to a left/right lamp driving unit and a central lamp driving unit respectively according to light flashing parameter value, and then left side lamps, central lamp and right side lamps respectively form staggered flashing according to light flashing parameter value of the operation control unit, so that the flashing light set produces light changes corresponding to the music rhythm and vocals.
    Type: Application
    Filed: April 15, 2022
    Publication date: November 17, 2022
    Inventor: You-Chi LIU
  • Publication number: 20220369443
    Abstract: A method of using stereo recording to control the flashing of central lamps includes the steps of: providing left and right channel microphones in a stereo sound source venue or electronic device, and recording the plural sound sources generated by the left area, central area and right area of the stereo sound source, then storing the recorded analog signal in an audio signal sampling unit of a signal processing device, and then converting the sound signal into a light flashing formula to obtain a light flashing parameter value. According to the light flashing parameter value of the operation control unit, the left side lamps, the central lamps and the right side lamps respectively form staggered flashing, so that the flashing light set produces light changes corresponding to the music rhythm and vocals.
    Type: Application
    Filed: April 15, 2022
    Publication date: November 17, 2022
    Inventor: You-Chi LIU
  • Patent number: D976756
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: January 31, 2023
    Assignee: KWANG YANG MOTOR CO., LTD.
    Inventors: Chia-Sheng Chen, Chu-Chung Yang, Cheng-Chi Liu