Patents by Inventor Hung Yen

Hung Yen 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: 10250116
    Abstract: The present invention particularly discloses a control circuit comprising a signal detection unit and a controller unit for reducing power loss of a LLC resonant converter during light-load or no-load operation. In the present invention, the signal detection unit is adopted for sensing a primary-side current from a transformer unit of the LLC resonant converter, and then converting the primary-side current to a reference voltage signal. Thus, according to a level variation of the reference voltage signal, the controller unit is able to properly regulate duty cycle of a switch controlling signal based on a duty cycle reduction percentage. Eventually, by using the switch controlling signal to control the periodic ON-OFF switching of power switches, power loss of the LLC resonant converter operated under light load or no load can be obviously reduced; moreover, working temperature of the power switches is simultaneously lowered.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 2, 2019
    Assignee: MEANWELL (GUANGZHOU) ELECTRONICS CO., LTD.
    Inventors: Ying-Hung Yen, Chih-Yuan Chang
  • Publication number: 20190086914
    Abstract: Systems and method are provided for collaboration between autonomous vehicles. In one embodiment, a processor-implemented method for coordinating travel between multiple autonomous vehicles is provided. The method includes sending a collaboration request to one or more vehicles in an area to form a group to perform a mission, receiving an acceptance of the collaboration request to join the group wherein the group includes a plurality of vehicles, cooperating in assigning leading functions for the group to one or more of the plurality of vehicles in the group, cooperating in mission negotiations for the group, cooperating in determining a formation for the group, and cooperating in generating a trajectory for the group. The vehicles in the group are operated in accordance with the determined formation and generated trajectory.
    Type: Application
    Filed: September 15, 2017
    Publication date: March 21, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chih-hung Yen, Yao Hu, Yilu Zhang, Paul E. Krajewski, Steven W. Holland, Mutasim A. Salman, Xiaoyu Huang, Azeem Sarwar
  • Publication number: 20190074759
    Abstract: The present invention particularly discloses a control circuit comprising a signal detection unit and a controller unit for reducing power loss of a LLC resonant converter during light-load or no-load operation. In the present invention, the signal detection unit is adopted for sensing a primary-side current from a transformer unit of the LLC resonant converter, and then converting the primary-side current to a reference voltage signal. Thus, according to a level variation of the reference voltage signal, the controller unit is able to properly regulate duty cycle of a switch controlling signal based on a duty cycle reduction percentage. Eventually, by using the switch controlling signal to control the periodic ON-OFF switching of power switches, power loss of the LLC resonant converter operated under light load or no load can be obviously reduced; moreover, working temperature of the power switches is simultaneously lowered.
    Type: Application
    Filed: September 1, 2017
    Publication date: March 7, 2019
    Inventors: YING-HUNG YEN, CHIH-YUAN CHANG
  • Publication number: 20190072125
    Abstract: A fastener includes a connecting member and a handling member. The connecting member has a first axis and an accommodating space extended along the first axis. The handling member having a second axis is movably disposed in the accommodating space and movable between a first position and a second position. When located at the first position, the handling member is disposed in the accommodating space in a way that the second axis is approximately coaxial with the first axis of the connecting member. When located at the second position, the handling member is positioned on the connecting member in a way that an included angle is provided between the second axis and the first axis so that the handling member can be rotated by an external force to drive the connecting member to rotate at a to-be fastened position.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 7, 2019
    Inventor: Cheng-Hung YEN
  • Patent number: 10207282
    Abstract: A wash-free air-guiding cover includes a cover having a body with a fixing seat disposed on a side thereof. A ventilation tube is disposed on the fixing seat and includes a ventilation hole intercommunicated with the other side of the body. An air guiding device is mounted to the fixing seat and includes a tube having first, second, and third air guiding spaces. The air guiding device further includes first and second sealing members and first and second flow guiding rods. Air flowing into the tube must flow zigzag through the first, second, and third air guiding spaces and between the first and second flow guiding rods and the second and third air guiding spaces, assuring smooth flow of air during the painting operation and avoiding the paint from leaking via the ventilation tube and the ventilation hole of the cover.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: February 19, 2019
    Inventors: Hung-Yen Cheng, Kai-Cheng Chang
  • Patent number: 10196100
    Abstract: Cab extender systems and methods are provided for reducing the aerodynamic drag on a pickup truck. A cab extender system includes a cab with a roof panel and a rear wall. The cab extends upward on the vehicle to the roof panel and the rear wall extends downward from the roof panel. A tailgate is disposed at a rear of the vehicle and a utility box extends between the rear wall and the tailgate. An extender extends in a rearward direction from the roof panel a length of between ten and twenty centimeters from the rear wall.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: February 5, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chih-Hung Yen, Kuo-Huey Chen, Taeyoung Han, Bahram Khalighi
  • Publication number: 20190009769
    Abstract: A brake temperature monitoring system configured to monitor at least one of a rotor and hydraulic fluid of a brake mechanism for a vehicle. The system including a controller including a processor and an electronic storage medium, a vehicle velocity sensor, an ambient temperature sensor, and a pre-programmed module. The vehicle velocity sensor is configured to output a velocity signal to the processor. The ambient temperature sensor is configured to output an ambient temperature signal to the processor. The model is pre-programmed into the electronic storage medium, and is adapted to estimate the temperature of at least one of the rotor and the hydraulic fluid. The estimation is based on an ambient air temperature, and a pre-established relationship between a conductive heat transfer factor and a convective heat transfer factor. The convective heat transfer factor is a function of vehicle velocity.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 10, 2019
    Inventors: David B. Antanaitis, Mark T. Riefe, Chih-hung Yen
  • Publication number: 20190009840
    Abstract: Cab extender systems and methods are provided for reducing the aerodynamic drag on a pickup truck. A cab extender system includes a cab with a roof panel and a rear wall. The cab extends upward on the vehicle to the roof panel and the rear wall extends downward from the roof panel. A tailgate is disposed at a rear of the vehicle and a utility box extends between the rear wall and the tailgate. An extender extends in a rearward direction from the roof panel a length of between ten and twenty centimeters from the rear wall.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 10, 2019
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chih-Hung Yen, Kuo-Huey Chen, Taeyoung Han, Bahram Khalighi
  • Publication number: 20180370519
    Abstract: A vehicle braking system including a brake pedal in communication with a wheel brake, a brake actuation system, a braking system controller, an on-board driver communication system, and a controller is described. Parameters associated with a braking request, a brake actuation command and vehicle operation are monitored during each braking event, and segmented the into parameters associated with a static portion of the braking event and parameters associated with a dynamic portion of each braking event, evaluate the parameters associated with the static portion of the braking event and evaluate the parameters associated with the dynamic portion of the braking event, and assess a state of health of the braking system based upon the evaluation of the parameters. The assessment of the state of health of the braking system is communicated to a vehicle driver via the on-board driver communication system.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 27, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chih-hung Yen, Xiaoyu Huang, Richard A. Kaatz, Robert L. Nisonger
  • Publication number: 20180312154
    Abstract: According to aspects of the present disclosure, a vehicle includes a braking system, at least one controller, and at least one memory. The braking system includes a brake fluid therein and a brake pedal. The at least one memory stores instructions that, when executed by the at least one controller, are configured to: determine, via a boiling-point module, a boiling point of a brake fluid within a braking system of a vehicle; determine, via a fluidic-properties module, fluidic properties of the brake fluid; determine, via a corrosion-inhibitor module, an amount of corrosion inhibitors within the brake fluid; determine, via a reserve-alkalinity module, a reserve alkalinity of the brake fluid; estimate, a brake-fluid life module, a remaining effective life of the brake fluid using the boiling point, the fluidic properties, the amount of corrosion inhibitors, and the reserve alkalinity; and adjust a response curve of the braking system.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 1, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chih-hung Yen, Richard A. Kaatz, Steven J. Weber, John M. Moote, Patrick M. Hanley, Xiaoyu Huang
  • Publication number: 20180224105
    Abstract: An LED lamp and a component, a heat dissipating base and an LED wireless dimming system thereof are provided. The LED lamp component comprises a heat dissipating base, a light emitting module and a lens, the heat dissipating base has a bearing surface and a back surface opposite to the bearing surface, the bearing surface is provided with a first recessed section therein, the back surface is provided with heat dissipating structures; the heat dissipating base further comprises a first joint portion; the light emitting module is disposed in the first recessed section, and the lens covering the light emitting module.
    Type: Application
    Filed: January 11, 2018
    Publication date: August 9, 2018
    Applicant: Everlight Electronics Co., Ltd.
    Inventors: MING-CHIEH TSAI, HUNG-YEN SU, CHI-MING CHEN
  • Publication number: 20180214469
    Abstract: A composition for inhibiting a liver tumor in an organism is disclosed. The composition includes an activator being 1,2,3,4,6-penta-O-galloyl-Beta-D-glucopyranoside (PGG), wherein PGG is extracted from at least one of Paeonia lactiflora Pall. and Galla Chinesis.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 2, 2018
    Applicant: KAOHSIUNG MEDICAL UNIVERSITY
    Inventors: Yi-Ming Chen, Chia-Hung Yen, Chung-Kuang Lu
  • Patent number: 9959142
    Abstract: One dynamic task scheduling method includes: receiving a task, wherein the task comprises a kernel and a plurality of data items to be processed by the kernel; dynamically partitioning the task into a plurality of sub-tasks, each having the kernel and a variable-sized portion of the data items; and dispatching the sub-tasks to a plurality of computing devices of a heterogeneous computing system. Another dynamic task scheduling method includes: receiving a task, wherein the task comprises a kernel and a plurality of data items to be processed by the kernel; partitioning the task into a plurality of sub-tasks, each having the kernel and a same fixed-sized portion of the data items; and dynamically dispatching the sub-tasks to a plurality of computing devices of a heterogeneous computing system.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 1, 2018
    Assignee: MEDIATEK INC.
    Inventors: Che-Ming Hsu, Tzu-Hung Yen, Yu-Mao Kao, Shih-Chieh Huang, Ting-Chang Huang
  • Patent number: 9926021
    Abstract: A strake may direct air around a structure that moves in a forward direction and that has a first side and a second side. The strake may include a first section that may curve inward and rearward around the structure and that may be shaped to direct oncoming air toward the second side. The strake may include a second section that may be positioned further in the forward direction than a portion of the structure and may be shaped to direct oncoming air toward the first or second side.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: March 27, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Taeyoung Han, Kuo-Huey Chen, Chih-Hung Yen, Bahram Khalighi
  • Publication number: 20180009581
    Abstract: A wash-free air-guiding cover includes a cover having a body with a fixing seat disposed on a side thereof. A ventilation tube is disposed on the fixing seat and includes a ventilation hole intercommunicated with the other side of the body. An air guiding device is mounted to the fixing seat and includes a tube having first, second, and third air guiding spaces. The air guiding device further includes first and second sealing members and first and second flow guiding rods. Air flowing into the tube must flow zigzag through the first, second, and third air guiding spaces and between the first and second flow guiding rods and the second and third air guiding spaces, assuring smooth flow of air during the painting operation and avoiding the paint from leaking via the ventilation tube and the ventilation hole of the cover.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 11, 2018
    Inventors: Hung-Yen Cheng, Kai-Cheng Chang
  • Patent number: 9864467
    Abstract: A calibration method for a capacitive sensing device is disclosed. The capacitive sensing device is capable of operating in a self-sensing mode or a mutual-sensing mode. The calibration method includes detecting a capacitance change of a panel in the self-sensing mode to generate a self-sensing output signal, detecting a capacitance change of the panel in the mutual-sensing mode to generate a mutual-sensing output signal, calculating a self-sensing difference between the self-sensing output signal and a self-sensing static parameter, and calibrating the mutual-sensing output signal according to the mutual-sensing output signal and the self-sensing difference.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 9, 2018
    Assignee: Sitronix Technology Corp.
    Inventors: Hung-Yen Tai, Chun-Kuan Wu, Ching-Jen Tung, Chen-Yuan Yang
  • Publication number: 20170369069
    Abstract: A system, for use in evaluating operation of a vehicle, includes a hardware-based processing unit, and a non-transitory computer-readable storage component including various functioning modules. The modules in various embodiments include an input module that, when executed by the hardware-based processing unit, receives, from a vehicle-braking sensor, braking data indicting characteristics of a braking event at the vehicle. The system in some implementations includes an input unit receiving the braking data from the sensor and passing it to a braking-monitoring module. The braking-monitoring module, when executed by the hardware-based processing unit, determines, based on the braking data, whether the braking event is within an acceptable pre-established limit. The technology in various embodiments includes processes performed by the system and algorithms used therein.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 28, 2017
    Inventors: Chih-hung Yen, Paul E. Krajewski, Taeyoung Han
  • Publication number: 20170285862
    Abstract: This disclosure provides a noise suppression circuit for suppressing a noise in a voltage signal. The noise suppression circuit comprises: a switch unit having a first terminal receiving the voltage signal and a second terminal; a capacitor having a first terminal connected to the first terminal of the switch unit and a second terminal grounded; and an analog front-end unit including an operational amplifier with a signal input terminal and a reference-voltage input terminal electrically connected to the second terminal of the switch unit; wherein the switch unit is controlled by a pulse signal.
    Type: Application
    Filed: June 6, 2016
    Publication date: October 5, 2017
    Inventors: YAO-SHENG HU, Chun-Kuan Wu, Ching-Jen Tung, Hung-Yen Tai
  • Publication number: 20170217419
    Abstract: Apparatus for prognosing a vehicle brake-system health issue, and processes performed thereby. The apparatus in various embodiments includes a first sensor and a second sensor. In various embodiments, the first sensor is configured to measure a brake system input, such as brake pedal force or displacement, and the second sensor configured to produce output indicative of vehicle deceleration. The apparatus further includes a processing hardware unit, and a non-transitory computer-readable storage device. The storage device includes a prognostic module configured to cause the processing hardware unit to determine, based on the data received from the first sensor and the second sensor, whether there is an existing or potential brake-system health issue. In some implementations, the first sensor or the second sensor is configured to measure brake-line pressure.
    Type: Application
    Filed: January 23, 2017
    Publication date: August 3, 2017
    Inventors: Chih-hung Yen, Taeyoung Han, Kee H. Im, Steven J. Weber
  • Publication number: 20170150920
    Abstract: A method of controlling an anti-snoring device is disclosed. The method includes the steps of capturing sound data within a period of time, sampling the sound data continuously, extracting multiple sound characteristic sections arising periodically from the sound data, and activating the anti-snoring device to stop snoring when the repeated occurrence count of the sound characteristic sections reach a threshold value.
    Type: Application
    Filed: March 27, 2016
    Publication date: June 1, 2017
    Inventors: Tzu-Li CHANG, Jui-Che TU, Chih-Chung YIN, Hung-Yen LAI, Kun-Hung LIN