Patents by Inventor Chih-Wen Wu

Chih-Wen 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).

  • Publication number: 20250112087
    Abstract: A method for fabricating an integrated circuit device is provided. The method includes depositing a first dielectric layer; depositing a second dielectric layer over the first dielectric layer; etching a trench opening in the second dielectric layer, wherein the trench opening exposes a first sidewall of the second dielectric layer and a second sidewall of the second dielectric layer, the first sidewall of the second dielectric layer extends substantially along a first direction, and the second sidewall of the second dielectric layer extends substantially along a second direction different from the first direction in a top view; forming a via etch stop layer on the first sidewall of the second dielectric layer, wherein the second sidewall of the second dielectric layer is free from coverage by the via etch stop layer; forming a conductive line in the trench opening; and forming a conductive via over the conductive line.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 3, 2025
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hwei-Jay CHU, Hsi-Wen TIEN, Wei-Hao LIAO, Yu-Teng DAI, Hsin-Chieh YAO, Tzu-Hui WEI, Chih Wei LU, Chan-Yu LIAO, Li-Ling SU, Chia-Wei SU, Yung-Hsu WU, Hsin-Ping CHEN
  • Publication number: 20250110307
    Abstract: 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: Application
    Filed: December 12, 2024
    Publication date: April 3, 2025
    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
  • Patent number: 12265739
    Abstract: The present invention discloses a data access interface unit comprising: a physical storage device controller for receiving a first control signal from a first storage virtualization controller, and accordingly determining the first storage virtualization controller as the primary controller, and generating a first selection signal; a selector for receiving the first selection signal, and accordingly selecting data and signals from the first storage virtualization controller; and a clock generation circuit for providing a dedicated clock signal to the physical storage device, where when the physical storage device controller receives a re-set signal from a second storage virtualization controller, the physical storage device controller determines the second storage virtualization controller as the new primary controller, and accordingly generates a second selection signal so as to control the selector to select data and signals from the second storage virtualization controller.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: April 1, 2025
    Assignee: Infortrend Technology, Inc.
    Inventors: Yen-Chen Wu, Ying-Wen Lin, Chih-Min Hsiao
  • Publication number: 20250079984
    Abstract: A conversion control circuit controls plural stackable sub-converters which are coupled in parallel to generate an output power to a load. The conversion control circuit includes a current sharing terminal and a current sharing circuit. A current sharing signal is connected, in parallel, to the current sharing terminals. The current sharing circuit includes: configuration (1): the current sharing signal is generated only according to an inductor current corresponding to one of plural inductors of the plural stackable sub-converters; or configuration (2): the current sharing signal is generated according to plural inductor currents corresponding to plural inductors of plural activated phases of the plural stackable sub-converters, wherein a ratio of a portion of the current sharing signal generated by a master control circuit to a portion generated by one of the slave control circuits is k which relates to a difference between a total phase number and an activated phase number.
    Type: Application
    Filed: December 13, 2023
    Publication date: March 6, 2025
    Inventors: Wei-Chuan Wu, Chih-Hao Yang, Li-Wen Fang, Ting-Jung Tai
  • Publication number: 20250066622
    Abstract: The present invention provides a method for preparing conductor material with large surface area, which comprises steps of: forming a block layer on the outer surface of a support precursor (for example, a conductive nanometer fiber) for producing a mixed precursor; rolling the mixed precursor to crack a portion of the outer surface of the block layer for producing a plurality of crack-gaps and exposing a portion of the outer surface of the support precursor from the plurality of crack-gaps; and adding a conductor material to the mixed precursor so that the conductor material contacts and is connected electrically to the support precursor via the plurality of crack-gaps for producing a conductor material with large surface area.
    Type: Application
    Filed: November 17, 2023
    Publication date: February 27, 2025
    Inventors: Ting-Keng Lin, Chih-Wen Wu
  • Publication number: 20250062753
    Abstract: A control device includes multi-stage control circuits. An i-th stage control circuit includes an input signal generator and an acknowledge signal generator. The input signal generator generates an i+1-th stage input signal according to a first inverted output signal and an i+1-th stage acknowledge signal. The acknowledge signal generator generates an i-th stage acknowledge signal according to an i-th stage delayed input signal and a second inverted output signal, wherein i is an integer larger than 1. Phases of the first inverted output signal and the second inverted output signal are opposite to a phase of an i-th stage output signal generated by an i-th stage pulse signal generator.
    Type: Application
    Filed: June 20, 2024
    Publication date: February 20, 2025
    Applicant: DigWise Technology Corporation, LTD
    Inventors: Hung-Lin Wu, Chih-Wen Yang, Yu-Chen Lo
  • Patent number: 12225126
    Abstract: The invention introduces an apparatus for detecting errors during data encryption. The apparatus includes a key generation circuitry and a key-error detection circuitry. The key generation circuitry is arranged operably to realize a key expansion operation for generating multiple round keys based on a root key in an encryption algorithm, where the encryption algorithm encodes plaintext or an intermediate encryption result with one round key in a corresponding round. The error detection circuitry is arranged operably to: calculate redundant data corresponding to each round key; and output an error signal to a processing unit when finding that any round key does not match corresponding redundant data at a check point during the key expansion operation.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: February 11, 2025
    Assignee: SILICON MOTION, INC.
    Inventors: Wun-Jhe Wu, Po-Hung Chen, Chiao-Wen Cheng, Jiun-Hung Yu, Chih-Wei Liu
  • Patent number: 12209863
    Abstract: The present disclosure provides a geomagnetic positioning device, comprising a base assembly and a connecting assembly. The base assembly comprises a control component, a driving component, and a first geomagnetic component. The control component is electrically connected with the driving component and the first geomagnetic component. The connecting assembly is disposed at the driving component and comprises a second geomagnetic component. Wherein the control component obtains the deviation angle of the second geomagnetic component relative to the first geomagnetic component. The control component controls the driving component according to the deviation angle to adjust the relative angle of the connecting assembly relative to the base assembly.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: January 28, 2025
    Assignee: LUXSHARE-ICT CO., LTD.
    Inventors: Chih-Hsiung Chang, Sheng-Wen Wu
  • Patent number: 12204163
    Abstract: 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: Grant
    Filed: February 5, 2024
    Date of Patent: January 21, 2025
    Assignee: 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
  • Publication number: 20240421773
    Abstract: An electronic device includes a driving amplifier, a power amplifier, a power detector, and a bias circuit. The driving amplifier outputs a radio frequency (RF) signal. The power amplifier is electrically connected to the driving amplifier. The power amplifier includes an input end. The power amplifier receives the RF signal through the input end. The power amplifier amplifies the RF signal. The power detector is electrically coupled to the input end and detects the input power of the RF signal. The power detector outputs a driving voltage according to the input power. The bias circuit is electrically connected to the power amplifier and the power detector. The bias circuit outputs a first driving current to the power amplifier according to the driving voltage. The power amplifier amplifies the power of the RF signal from the input power to a target power according to the first driving current.
    Type: Application
    Filed: May 31, 2024
    Publication date: December 19, 2024
    Inventor: Chih-Wen WU
  • Patent number: 10965264
    Abstract: A bias circuit generates a bias current to an RF power amplifier used for transmitting RF signals, and the amount of the bias current supplied to the RF power amplifier can be configured in multiple modes through transistor switches that are controlled by mode control signals, so that the bias current supplied to the RF power amplifier can be adjusted according to the required power level of the transmitting RF signals. In addition, the bias current can be turned off by another transistor switch that is controlled by a power control signal for saving power while the RF power amplifier is not transmitting RF signals.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: March 30, 2021
    Assignee: Rafael Microelectronics, Inc.
    Inventors: Chih-Wen Wu, Po Chang Lin, Chun Hua Tseng
  • Patent number: 10903797
    Abstract: A bias circuit for supplying a bias current to an RF power amplifier by using a field-effect transistor (FET) that is controlled by a logic control signal, such as a CMOS logic control signal, for turning on or turning off the bias current supplied to the RF power amplifier, wherein the bias current will be supplied to the RF power amplifier when the FET is on, and the bias current will not be supplied to the RF power amplifier when the FET is off.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 26, 2021
    Assignee: Rafael Microelectronics, Inc.
    Inventors: Chih-Wen Wu, Szu-Yao Chu
  • Patent number: 10884324
    Abstract: The disclosure provides a moving apparatus for a projector. The projector includes a body, a processing unit and a projection lens. The moving apparatus includes a base having a through-base opening. At least one moving stage movably disposed on a front side surface of the base along a plane and has at least one through-stage opening aligned with the through-base opening. At least one magnetic component disposed on a carrier board, wherein a projection position of the projection lens is positioned by the at least one magnetic board through magnetic attraction. The at least one magnetic component is electrically connected to the processing unit.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: January 5, 2021
    Assignee: Coretronic Corporation
    Inventors: Chih-Wen Wu, Chien-Tsai Chueh
  • Publication number: 20200350881
    Abstract: A bias circuit generates a bias current to an RF power amplifier used for transmitting RF signals, and the amount of the bias current supplied to the RF power amplifier can be configured in multiple modes through transistor switches that are controlled by mode control signals, so that the bias current supplied to the RF power amplifier can be adjusted according to the required power level of the transmitting RF signals. In addition, the bias current can be turned off by another transistor switch that is controlled by a power control signal for saving power while the RF power amplifier is not transmitting RF signals.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 5, 2020
    Inventors: Chih-Wen Wu, Po Chang Lin, Chun Hua Tseng
  • Publication number: 20200266767
    Abstract: A bias circuit for supplying a bias current to an RF power amplifier by using a field-effect transistor (FET) that is controlled by a logic control signal, such as a CMOS logic control signal, for turning on or turning off the bias current supplied to the RF power amplifier, wherein the bias current will be supplied to the RF power amplifier when the FET is on, and the bias current will not be supplied to the RF power amplifier when the FET is off.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 20, 2020
    Inventors: Chih-Wen Wu, Szu-Yao Chu
  • Publication number: 20200004114
    Abstract: The disclosure provides a moving apparatus for a projector. The projector includes a body, a processing unit and a projection lens. The moving apparatus includes a base having a through-base opening. At least one moving stage movably disposed on a front side surface of the base along a plane and has at least one through-stage opening aligned with the through-base opening. At least one magnetic component disposed on a carrier board, wherein a projection position of the projection lens is positioned by the at least one magnetic board through magnetic attraction. The at least one magnetic component is electrically connected to the processing unit.
    Type: Application
    Filed: May 2, 2019
    Publication date: January 2, 2020
    Applicant: Coretronic Corporation
    Inventors: Chih-Wen Wu, Chien-Tsai Chueh
  • Patent number: 10481646
    Abstract: A computer housing including a plurality of panels including a front panel, a top panel, a rear panel, a bottom panel, a left panel, and a right panel coupled together to form the computer housing. The computer housing also includes a beveled portion disposed between at least one of (i) the front panel and the top panel, (ii) the top panel and the rear panel, (iii) the rear panel and the bottom panel, and (iv) the bottom panel and the front panel, and at least two engagement members disposed in each corner of the computer housing. At least one engagement member is disposed in the beveled portion and the at least two engagement members are disposed at a same distance from each other in each corner. The computer housing further includes a supporting member removably attached to each beveled portion.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: November 19, 2019
    Assignee: Cooler Master Technology Inc.
    Inventors: Chih-Wen Wu, Chia-Hsiang Chi, Kuei-Yun Feng
  • Patent number: 10275082
    Abstract: An intelligent hybrid touch display device, including: a touch display unit; a rotary mechanical switch, being integrated with the touch display unit in a body; and a control unit, located in the body and including: a first interface for driving the touch display unit; a second interface coupled with the rotary mechanical switch; a touch and switch detection unit coupled with the first interface and the second interface; a transmission interface for communicating with at least one external device; and a processor and an operating system stored in a memory, the processor being coupled with the touch and switch detection unit and the transmission interface, and being used for executing a control program with a support of the operating system, so that the touch display unit and the rotary mechanical switch can cooperate to provide a hybrid operation for selecting, changing or activating function options.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 30, 2019
    Assignee: YICHENG PRECISION INC.
    Inventors: Jen-Chieh Chang, Chung-Lin Chia, Han-Chang Chen, Yen-Hung Tu, Chih-Wen Wu
  • Patent number: 10141892
    Abstract: A bias circuit for supplying a bias current to a RF power amplifier by using at least two voltage reference circuits coupled between the base terminal of a bipolar transistor and a voltage supply for generating a bias current to the RF power amplifier, wherein each of the at least two voltage reference circuits respectively clamps to a reference voltage at a corresponding terminal node of the voltage reference circuit on a conductive path having a current flowing from the voltage supply to the base terminal of the bipolar transistor, wherein when the current flowing out of the voltage supply increases, the current flowing through each of the at least two voltage reference circuits will also increases, so that the variation range of the bias current to the RF power amplifier will be kept in a smaller range compared with the variation range of the current flowing out of the power supply, thereby increasing the linearity of the RF power amplifier.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 27, 2018
    Assignee: RAFAEL MICROELECTRONICS, INC.
    Inventor: Chih-Wen Wu
  • Publication number: 20180299930
    Abstract: A computer housing including a plurality of panels including a front panel, a top panel, a rear panel, a bottom panel, a left panel, and a right panel coupled together to form the computer housing. The computer housing also includes a beveled portion disposed between at least one of (i) the front panel and the top panel, (ii) the top panel and the rear panel, (iii) the rear panel and the bottom panel, and (iv) the bottom panel and the front panel, and at least two engagement members disposed in each corner of the computer housing. At least one engagement member is disposed in the beveled portion and the at least two engagement members are disposed at a same distance from each other in each corner. The computer housing further includes a supporting member removably attached to each beveled portion.
    Type: Application
    Filed: May 25, 2017
    Publication date: October 18, 2018
    Inventors: Chih-Wen WU, Chia-Hsiang CHI, Kuei-Yun FENG