Patents by Inventor Wei-Chih Hung

Wei-Chih 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).

  • Patent number: 11962239
    Abstract: 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: Grant
    Filed: September 16, 2022
    Date of Patent: April 16, 2024
    Assignee: uPI Semiconductor Corp.
    Inventors: Yun-Kuo Lee, Wei-Hsiang Wang, Yen-Chih Lin, Wei-Hsiu Hung
  • Publication number: 20240069067
    Abstract: A test device includes a power compensation module and a test module. The power compensation module receives AC power generated by a device under test to generate DC power to the device under test. The test module provides a plurality of test signals and a test mode to the device under test for testing the device under test.
    Type: Application
    Filed: December 5, 2022
    Publication date: February 29, 2024
    Inventors: Wei-Chih HUNG, Ying-Ping CHIANG, Yu-Ren RUAN, Chia-Hao WU
  • Publication number: 20240003680
    Abstract: Techniques for generating a depth map are described. The techniques include obtaining a set of phase difference measurements with a phase detect sensor, and generating a depth map based on the set of phase difference measurements, utilizing a first set of calibration data correlating phase difference measurements with lens defocus data and a second set of calibration data correlating lens positions with object distances.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Wei-Chih Hung, Po-Min Wang, Yu-Huai Chen
  • Publication number: 20240003748
    Abstract: Techniques for performing phase detect operations are described. The techniques include obtaining first measurements with a set of half-shield phase-detect sensors; obtaining second measurements with a set of non-phase detect sensors that are not configured as phase-detect sensor; and determining a phase difference based on the first measurements and the second measurements.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Wei-Chih Hung, Po-Min Wang, Yu-Huai Chen
  • Publication number: 20230319429
    Abstract: Systems, apparatuses, and methods for estimating object distance with camera lens focus calibration are disclosed. A relationship between in-focus lens position and object distance is captured in a calibration phase for a plurality of object distances and lens positions for a given camera. The in-focus lens positions and corresponding object distances are stored as calibration data in a memory device of the given camera. Next, during operation of the given camera, a control circuit receives the in-focus lens position that was used to capture a given image. Then, the control circuit performs a lookup of the calibration data with the in-focus lens position to retrieve a corresponding object distance. Next, the corresponding object distance is used as an estimate of a distance to an object in the scene captured in the given image by the given camera.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Po-Min Wang, Yu-Huai Chen, Wei-Chih Hung
  • Patent number: 11748887
    Abstract: Systems and methods to detect one or more segments of one or more objects within one or more images based, at least in part, on a neural network trained in an unsupervised manner to infer the one or more segments. Systems and methods to help train one or more neural networks to detect one or more segments of one or more objects within one or more images in an unsupervised manner.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: September 5, 2023
    Assignee: NVIDIA Corporation
    Inventors: Varun Jampani, Wei-Chih Hung, Sifei Liu, Pavlo Molchanov, Jan Kautz
  • Patent number: 11653092
    Abstract: Enhanced phase detection for a PDAF sensor includes extracting pixel data from image data, the image data captured from an image capturing device having a phase detection autofocus (PDAF) sensor; extracting one or more features from the pixel data, including removing irrelevant pixel data; and determining a phase difference between the one or more features.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: May 16, 2023
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wei-Chih Hung, Po-Min Wang
  • Publication number: 20230113983
    Abstract: Enhanced phase detection for a PDAF sensor includes extracting pixel data from image data, the image data captured from an image capturing device having a phase detection autofocus (PDAF) sensor; extracting one or more features from the pixel data, including removing irrelevant pixel data; and determining a phase difference between the one or more features.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 13, 2023
    Inventors: WEI-CHIH HUNG, PO-MIN WANG
  • Patent number: 11596069
    Abstract: A connector assembly for connecting an upper circuit board to a lower circuit board is disclosed. The upper circuit board includes a series of fastener holes for a fastening device allowing attachment to the lower circuit board. The connector assembly has a support bracket with access holes aligned with the holes of the upper circuit board. The support bracket is configurable to be positioned over the upper circuit board. The connector assembly has a moveable cover bracket having a series of access holes. The cover bracket is suspended between the support bracket and the cover bracket. The cover bracket is moveable between an open position aligning the access holes with the access holes of the support bracket, and a closed position. In the closed position, the cover bracket blocks access between the access holes of the support bracket and the holes of the upper circuit board.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 28, 2023
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chao-Jung Chen, Chih-Hsiang Lee, Hou-Hsien Chang, Wei-Chih Hung
  • Publication number: 20230034074
    Abstract: A connector assembly for connecting an upper circuit board to a lower circuit board is disclosed. The upper circuit board includes a series of fastener holes for a fastening device allowing attachment to the lower circuit board. The connector assembly has a support bracket with access holes aligned with the holes of the upper circuit board. The support bracket is configurable to be positioned over the upper circuit board. The connector assembly has a moveable cover bracket having a series of access holes. The cover bracket is suspended between the support bracket and the cover bracket. The cover bracket is moveable between an open position aligning the access holes with the access holes of the support bracket, and a closed position. In the closed position, the cover bracket blocks access between the access holes of the support bracket and the holes of the upper circuit board.
    Type: Application
    Filed: November 1, 2021
    Publication date: February 2, 2023
    Inventors: Chao-Jung CHEN, Chih-Hsiang LEE, Hou-Hsien CHANG, Wei-Chih HUNG
  • Patent number: 11112576
    Abstract: One embodiment of the invention provides an optical lens including a first lens group with at least two lenses, a second lens group with at least two lenses, and a parting line located between the first lens group and the second lens group. Each of the lenses of the first and the second lens groups is associated with a respective distance, the respective distance is a distance value measured along an optical axis between two focal points of two end points of an image circle diameter formed at an image plane of the optical lens, under the condition that an optical center of one of the lenses is shifted a distance away from the optical axis. The two lenses with the two largest distance values among all lenses are disposed on the same side of the parting line.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 7, 2021
    Assignee: Ray Optics Inc.
    Inventors: Yu-Hsiang Lin, Chen-Cheng Lee, Wei-Chih Hung
  • Publication number: 20210150349
    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for multi object tracking using memory attention.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 20, 2021
    Inventors: Wei-Chih Hung, Henrik Kretzschmar, Yuning Chai, Dragomir Anguelov
  • Publication number: 20200320401
    Abstract: Systems and methods to detect one or more segments of one or more objects within one or more images based, at least in part, on a neural network trained in an unsupervised manner to infer the one or more segments. Systems and methods to help train one or more neural networks to detect one or more segments of one or more objects within one or more images in an unsupervised manner.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 8, 2020
    Inventors: Varun Jampani, Wei-Chih Hung, Sifei Liu, Pavlo Molchanov, Jan Kautz
  • Patent number: 10720855
    Abstract: A power supply includes a transformer winding, a switching circuit, a controller and a filter circuit. The transformer winding is configured to provide a first voltage. The switching circuit is coupled to the transformer winding and includes a first and a second switching unit. On the condition that the power supply is operated under a standby mode, the controller controls the first and the second switching units to provide a discharging path between two terminals of the transformer winding. On the condition that the power supply is operated under an operating mode, the controller controls the switching circuit such that the switching circuit provides a second voltage according to the first voltage. The filter circuit is coupled to the switching circuit and configured to filter the second voltage to provide an output voltage.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 21, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Te-Chih Peng, Wei-Chih Hung, Min-Cheng Chiang
  • Patent number: 10686281
    Abstract: A retention apparatus is provided for securing a cable into a receptacle of an electronic device. The retention apparatus includes a body with two distal ends. A buckle is located at one distal end while a housing is located at the opposite distal end. The buckle includes at least one tooth. The housing includes a receiver configured to secure the buckle and a handle portion. The receiver includes a securing element and guide. The securing element includes at least one notch to interconnect with the at least one tooth of the buckle.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: June 16, 2020
    Assignee: QUANTA COMPUTER INC.
    Inventors: Hou-Hsien Chang, Yen-Chung Hou, Wei-Chih Hung
  • Publication number: 20200161808
    Abstract: A retention apparatus is provided for securing a cable into a receptacle of an electronic device. The retention apparatus includes a body with two distal ends. A buckle is located at one distal end while a housing is located at the opposite distal end. The buckle includes at least one tooth. The housing includes a receiver configured to secure the buckle and a handle portion. The receiver includes a securing element and guide. The securing element includes at least one notch to interconnect with the at least one tooth of the buckle.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Inventors: Hou-Hsien CHANG, Yen-Chung HOU, Wei-Chih HUNG
  • Patent number: 10660234
    Abstract: A hot swappable fan module includes an outer frame, a cooling fan, a fixing element, and a light guide assembly. The cooling fan is located on one side of the outer frame. The fixing element is operable to fix the outer frame and the cooling fan. The light guide assembly includes a light guide post, a first stopping portion, and a second stopping portion. The light guide post penetrates through the cooling fan and the outer frame. The first stopping portion is located on the light guide post, and abuts against one surface of the cooling fan opposite to the outer frame. The second stopping portion is arranged opposite to the first stopping portion, is light-transmittable, and is optically coupled to the light guide post, and abuts against one surface of the outer frame opposite to the cooling fan.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 19, 2020
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chao-Jung Chen, Yaw-Tzorng Tsorng, Po-Chen Liu, Wei-Chih Hung
  • Patent number: 10608378
    Abstract: A retention apparatus is provided for securing a cable into a receptacle of an electronic device. The retention apparatus includes a body with two distal ends. A buckle is located at one distal end while a housing is located at the opposite distal end. The buckle includes at least one tooth. The housing includes a receiver configured to secure the buckle and a handle portion. The receiver includes a securing element and guide. The securing element includes at least one notch to interconnect with the at least one tooth of the buckle.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 31, 2020
    Assignee: QUANTA COMPUTER INC.
    Inventors: Hou-Hsien Chang, Yen-Chung Hou, Wei-Chih Hung
  • Patent number: 10600171
    Abstract: Certain embodiments involve blending images using neural networks to automatically generate alignment or photometric adjustments that control image blending operations. For instance, a foreground image and a background image data are provided to an adjustment-prediction network that has been trained, using a reward network, to compute alignment or photometric adjustments that optimize blending reward scores. An adjustment action (e.g., an alignment or photometric adjustment) is computed by applying the adjustment-prediction network to the foreground image and the background image data. A target background region is extracted from the background image data by applying the adjustment action to the background image data. The target background region is blended with the foreground image, and the resultant blended image is outputted.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 24, 2020
    Assignee: Adobe Inc.
    Inventors: Jianming Zhang, Zhe Lin, Xiaohui Shen, Wei-Chih Hung, Joon-Young Lee
  • Patent number: 10566891
    Abstract: A power supply device includes a voltage converting circuit and a mode switching circuit. The voltage converting circuit is configured to receive a first voltage and convert the first voltage to a second voltage. The mode switching circuit is configured to provide an output voltage and an output current to a load according to the second voltage. The mode switching circuit includes a switch configured to maintain on or off on the condition that the power supply device is operated under a constant voltage output mode such that the value of the output voltage corresponds to the second voltage, and the switch is configured to switch between on and off on the condition that the power supply device is operated under a constant current output mode such that the output current of the mode switching circuit is a constant value.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: February 18, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Wei-Chih Hung, Yen-Wei Lin, Yung-Chin Wang, Min-Cheng Chiang, Te-Chih Peng