Patents by Inventor Li Wen

Li Wen 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).

  • Patent number: 11942068
    Abstract: An adaptive active noise control (ANC) system includes an ANC circuit and a control circuit. The ANC circuit generates an anti-noise signal for noise reduction, wherein the ANC circuit includes at least one adaptive filter. The control circuit receives a first input signal derived from a reference signal output by a reference microphone that picks up ambient noise, receives a second input signal derived from an error signal output by an error microphone that picks up remnant noise resulting from the noise reduction, and performs a transfer function variation detection based on the first input signal and the second input signal to control the at least one adaptive filter.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: March 26, 2024
    Assignee: Airoha Technology Corp.
    Inventors: Chao-Ling Hsu, Li-Wen Chi
  • Publication number: 20240096630
    Abstract: Disclosed is a semiconductor fabrication method. The method includes forming a gate stack in an area previously occupied by a dummy gate structure; forming a first metal cap layer over the gate stack; forming a first dielectric cap layer over the first metal cap layer; selectively removing a portion of the gate stack and the first metal cap layer while leaving a sidewall portion of the first metal cap layer that extends along a sidewall of the first dielectric cap layer; forming a second metal cap layer over the gate stack and the first metal cap layer wherein a sidewall portion of the second metal cap layer extends further along a sidewall of the first dielectric cap layer; forming a second dielectric cap layer over the second metal cap layer; and flattening a top layer of the first dielectric cap layer and the second dielectric cap layer using planarization operations.
    Type: Application
    Filed: January 12, 2023
    Publication date: March 21, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Wei Yin, Tzu-Wen Pan, Yu-Hsien Lin, Yu-Shih Wang, Jih-Sheng Yang, Shih-Chieh Chao, Yih-Ann Lin, Ryan Chia-Jen Chen
  • Publication number: 20240088804
    Abstract: Provided is a motor braking device for a N-phase brushless motor. The motor braking device includes a switching circuit adapted to connect the N-phase brushless motor to a power supply, the switching circuit comprising a high side switch group and a low side switch group, each of the high side switch group and the low side switch group comprising N switching elements, and a control unit configured to control the switching circuit to brake the motor based on occurrence of a first event, the first event chosen from a group consisting of release of a trigger by a user, and occurrence of a predetermined condition as detected by a sensor. The control unit is configured to, upon occurrence of the first event, switch all the switching elements of one of the high side switch group or the low side switch group to an on-state, and simultaneously switch all the switching elements of the other one of the high side switch group and the lower side switch group to an off-state.
    Type: Application
    Filed: February 10, 2021
    Publication date: March 14, 2024
    Inventors: Bao An ZHANG, Zi Cong CHEN, Li Hua XIE, Chao WEN, Yong Min LI
  • Publication number: 20240086632
    Abstract: The embodiments of the disclosure disclose methods, a system, apparatuses, and an electronic device for information referencing. A specific embodiment of the method includes: in response to creating a target formula, determining parameters of the target formula; generating an identification token of the target formula with a first target information, wherein the first target information includes a user identification of a target user, an identification of the referencing document, the identification of the referenced document and the identification of the referenced region, and the target user is a user creating the target formula; receiving a first verification result returned based on a second target information, wherein the second target information comprises the identification token and the first target information; and performing information presentation in the referencing document based on the first verification result.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Inventors: Mingtao LUO, Li XU, Wenjian CHEN, Zhuozhen WEN
  • Patent number: 11929681
    Abstract: A scalable multi-phase switching converter includes: converter modules, each including: a loop control unit, which generates a basic trigger pulse according to a feedback signal in master operation mode; and a switching control unit, which determines an operation mode and a corresponding phase serial order according to a setting signal received by a setting pin in a setting mode, and generates a multi-phase trigger pulse signal at a trigger pin according to the basic trigger pulse in master operation mode. The switching control unit receives the multi-phase trigger pulse signal at the trigger pin in slave operation mode. The switching control unit generates an ON-trigger pulse according to the multi-phase trigger pulse signal and the corresponding phase serial order. An ON-period determination unit generates a conduction control pulse according to the ON-trigger pulse to control a corresponding inductor. The trigger pins of the converter modules are coupled to each other.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: March 12, 2024
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Chih-Wen Hsiao, Ping-Ching Huang, Li-Wen Fang
  • Patent number: 11924178
    Abstract: Disclosed is a system and a method for information distribution. The system comprises: a server for generating a group key and its corresponding key deriving parameter, wherein the server encrypts sensitive contents by using the group key to obtain encrypted information; and terminals configured to receive the encrypted information through an open channel, extract the group key, then decrypt the encrypted information by using the group key to obtain the original content. In the group forming process, each terminal encrypts its private identifier using the public key and submits the ciphertext to the server. In information distribution process, the server transmits the ciphertext of sensitive contents and the key deriving parameter to the terminals via open channel Because private information available only to respective group members is required for calculating the group key, this mechanism ensures that the sensitive content can be transmitted securely on the open channel.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: March 5, 2024
    Assignee: MAXIO Technology (Hangzhou) Co., Ltd.
    Inventors: Gang Fang, Wei Xu, Yan Cai, Jun Chen, Zhehang Wen, Li Liang, Guohua Chen, Yiming Lu
  • Patent number: 11920212
    Abstract: The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: March 5, 2024
    Assignee: SHANGHAI NORMAL UNIVERSITY
    Inventors: Zhenfeng Bian, Yao Chen, Mengjiao Xu, Lili Lin, Jieya Wen, Yu Wan, Li Liu, Hexing Li
  • Patent number: 11921665
    Abstract: A server system with inbuilt ability to determine the correctness of connections within the server and prevent operation in the event of a misconnection includes a server motherboard, a connection cable, and a server backplane. The server backplane is electrically connected to the server motherboard through the connection cable. The connection cable comprises a first connector and a second connector, the first connector and the second connector are configured to connect to the server motherboard, the first connector and the second connector carry their own individual binary IDS, and the server motherboard is configured to determine whether the connection cable is correctly connected according to the binary IDs. The present disclosure also provides a method for same.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: March 5, 2024
    Assignee: Shenzhen Fulian Fugui Precision Industry Co., Ltd.
    Inventors: Shan-Shan Ye, Li-Wen Guo, Fan Li
  • Publication number: 20240073808
    Abstract: A cell selection method includes receiving, by an access stratum (AS) of a terminal device, first information from a non-access stratum (NAS) of the terminal device. The first information includes identity information of a first public land mobile network (PLMN) to be accessed by the terminal device. The cell selection method also includes determining, by the AS based on the first information, whether to camp on a first candidate cell. The first candidate cell supports the first PLMN. The first candidate cell satisfies a first camping condition. The first camping condition comprises a cell selection criterion and a service requirement. The service requirement is a preset threshold of a parameter reflecting signal quality of a cell.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Inventors: Dandan YI, Li QIANG, Gong CHEN, Xiaofeng LUO, Lutao WEN
  • Publication number: 20240072170
    Abstract: A semiconductor device is disclosed. The semiconductor device includes a semiconductor fin. The semiconductor device includes first spacers over the semiconductor fin. The semiconductor device includes a metal gate structure, over the semiconductor fin, that is sandwiched at least by the first spacers. The semiconductor device includes a gate electrode contacting the metal gate structure. An interface between the metal gate structure and the gate electrode has its side portions extending toward the semiconductor fin with a first distance and a central portion extending toward the semiconductor fin with a second distance, the first distance being substantially less than the second distance.
    Type: Application
    Filed: August 24, 2022
    Publication date: February 29, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li-Wei Yin, Tzu-Wen Pan, Yu-Hsien Lin, Yu-Shih Wang, Yih-Ann Lin, Chia Ming Liang, Ryan Chia-Jen CHEN
  • Publication number: 20240057944
    Abstract: A device of contactless physiological measurement with error compensation function is disclosed, and comprises a camera and a modular electronic device that is embedded with a face detection unit, a physiological parameter estimating unit, a feature extraction unit, an error compensation unit, and a physiological parameter generating unit therein. The face detection unit detects a face region from a user image, such that the physiological parameter estimating unit extracts an rPPG signal from the face region, so as to calculate a preliminary physiological parameter based on the rPPG signal. Simultaneously, the feature extraction unit extracts an error feature from the face region, such that the error compensation unit generates an error compensation parameter based on the error feature and the preliminary physiological parameter.
    Type: Application
    Filed: December 28, 2022
    Publication date: February 22, 2024
    Applicant: FaceHeart Inc.
    Inventors: Yi-Chiao Wu, Li-Wen Chiu, Meng-Liang Chung, Bing-Fei Wu
  • Publication number: 20240053260
    Abstract: The present invention relates to a Fourier transform spectrometer applicable in an array of coherent light sources, comprising: a light source, a light transmission device, a control circuit, a detector, an amplifying circuit, and a computer. The control circuit is electrically connected to the light transmission device for control the on-off of light in the light transmission device. The amplifying circuit is connected with the detector for recording and amplifying the photoelectric signal obtained by the detector. The computer is connected with the amplifying circuit. The computer is equipped with a spectral analysis software is used to perform Fourier transform. The Fourier transform spectrometer based on the coherent light source array further includes a coherent light source array. The light transmission device is used to transmit the light emitted by the light source to the coherent light source array.
    Type: Application
    Filed: August 9, 2023
    Publication date: February 15, 2024
    Inventors: LI-WEN LAI, PENG LIU, DUAN-LIANG ZHOU, QUN-QING LI, SHOU-SHAN FAN
  • Publication number: 20240046979
    Abstract: A semiconductor memory device includes: a local write bit (LWB) line; a local write bit_bar (LWB_bar) line; a global write bit (GWB) line; a global write bit_bar (GWBL_bar) line; a column of segments, each segment including bit cells; each of the bit cells being coupled correspondingly between the LWB and LWB_bar lines; and a distributed write driving arrangement including local write drivers correspondingly coupled to the segments; and a global write driver coupled to each of the local write drivers.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 8, 2024
    Inventors: Hidehiro FUJIWARA, Hung-Jen LIAO, Li-Wen WANG, Jonathan Tsung-Yung CHANG, Yen-Huei CHEN
  • Publication number: 20240016444
    Abstract: The invention provides a fetal position monitoring system, comprising an abdominal belt or a glove comprising a force and/or deformation sensor arrangement for obtaining resistance information of a plurality of local areas of the abdomen in response to an applied pressure. A data analysis processor interprets the resistance information to derive a fetal position and/or fetal size and optionally also fetal movement and an output is provided giving a representation of the fetal position and/or fetal size and optionally also fetal movement. This system provides a way of generating an output of the fetal position or size which requires minimum medical knowledge of the user, and it may be used at home.
    Type: Application
    Filed: September 13, 2023
    Publication date: January 18, 2024
    Inventors: CONG TIAN, LIN LI, YU QIANG WU, GUANG LI WEN, XIAOJUN LOU
  • Patent number: 11877382
    Abstract: An immersion cooling system miniaturized by the omission of a pump and heat exchanger includes a first casing for containing a non-conductive coolant in which a heat-generating component is immersed, fins disposed on and located outside the first casing, and a second casing. The first casing is disposed in the second casing, and the second casing defines a first vent hole exposing the fins. The immersion cooling system dissipates heat by means of natural convection.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: January 16, 2024
    Assignee: Shenzhen Fulian Fugui Precision Industry Co., Ltd.
    Inventors: Jia-Hong Wu, Li-Wen Guo, Hsin-Ting Lin
  • Patent number: 11875772
    Abstract: An adaptive active noise control (ANC) system includes an ANC circuit and a control circuit. The ANC circuit generates an anti-noise signal, and includes at least one adaptive filter. The control circuit receives a first input signal derived from a reference signal output by a reference microphone that picks up ambient noise, receives a second input signal derived from an error signal output by an error microphone that picks up remnant noise resulting from noise reduction, and performs a comparison operation based on a first characteristic value of the first input signal and a second characteristic value of the second input signal to control the at least one adaptive filter.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: January 16, 2024
    Assignee: Airoha Technology Corp.
    Inventors: Chao-Ling Hsu, Li-Wen Chi
  • Publication number: 20230420187
    Abstract: The present invention provides a ceramic composition, comprising a primary mixture and a secondary mixture, wherein the primary mixture comprises a first primary ingredient powder and a second primary ingredient powder, and the first primary ingredient powder comprises BaTiO3, the second primary ingredient powder comprises any of SrTiO3, Ba0.95Ca0.05TiO3, BaZr0.1Ti0.9O3 or a combination thereof, and the secondary mixture comprises a rare earth oxide, a silicon oxide and an alkaline-earth metal oxide. The present invention further provides a ceramic sintered body obtained by sintering the ceramic composition, and a capacitor comprising the ceramic sintered body and a method for manufacturing the same; wherein the capacitor satisfies EIA-X8R specification, and has a high dielectric constant.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Inventors: Chun-Ju TSENG, Li-Wen CHU
  • Publication number: 20230413220
    Abstract: A wireless communication module is provided. The wireless communication module is configured to be installed on a server. The wireless communication module includes a carrier and a first wireless communication unit. The carrier is configured to be electrically coupled to the server. The first wireless communication unit is arranged on the carrier, and is electrically coupled to the carrier. The first wireless communication unit is configured to be controlled by the server via the carrier to emit and/or receive the radio wave. A related server is also provided.
    Type: Application
    Filed: February 28, 2023
    Publication date: December 21, 2023
    Inventors: LIN ZHANG, LI-WEN GUO, KE-FENG YOU
  • Publication number: 20230402480
    Abstract: A method of manufacturing a semiconductor device includes disposing a plurality of a first type of light sensing units on a substrate; and disposing a plurality of a second type of light sensing units arranged on the substrate. Each of the first type of light sensing units is operable to receive less radiation than each of the second type of light sensing units. At least one of the second type of light sensing units is adjacent to a portion of at least one of the first type of light sensing units. The method includes disposing a first isolation structure between one of the first type of light sensing units and one of the second type of light sensing units; and disposing a second isolation structure between the adjacent first type of light sensing units. The method includes disposing a reflective layer above the first type of light sensing units.
    Type: Application
    Filed: August 10, 2023
    Publication date: December 14, 2023
    Inventors: Li-Wen HUANG, Chung-Lin FANG, Kuan-Ling PAN, Ping-Hao LIN, Kuo-Cheng LEE, Cheng-Ming WU
  • Publication number: 20230403831
    Abstract: A temperature control device includes a temperature sensor configured to detect a temperature within a server. When the temperature in the server is below a preset temperature, the control unit controls an interior heating assembly to heat the server, and closes a ventilation assembly to retain heat within the server. When the temperature in the server has reached the preset temperature, the control unit controls the heating assembly to stop the internal heating, and controls the ventilation assembly to open, to allow dissipation of the heat from the server.
    Type: Application
    Filed: November 30, 2022
    Publication date: December 14, 2023
    Inventors: TZE-CHERN MAO, LI-WEN CHANG, YEN-CHUN FU, CHIH-HUNG CHANG, YAO-TING CHANG, CHAO-KE WEI