Patents by Inventor Fang Chang

Fang Chang 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: 20220333939
    Abstract: A method for generating energy-optimized travel routes for a motor vehicle includes one or more of the following: receiving an origin destination (OD) of the motor vehicle and an encrypted energy consumption database of the motor vehicle; generating N candidate routes for the OD; evaluating encrypted energy consumption over a route using an encrypted energy consumption database; applying at least one of homomorphic addition function or homomorphic multiplication function to the encrypted energy consumption data; and returning N candidate routes and their encrypted energy consumption to a client.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 20, 2022
    Inventors: Bharatkumar Hegde, Chen-Fang Chang
  • Publication number: 20220332165
    Abstract: A computer for an energy management system of an electric vehicle includes a processor. The computer further includes a memory including instructions such that the processor is programmed to determine a value function V based on a plurality of actions U in a plurality of states S. The processor is further programmed to select an action associated with a highest reward value at a current state S. The action U is an HVAC subsystem variable. The state S is a traction power drawn from a rechargeable energy storage system (RESS) to operate a traction subsystem, a base power input drawn from the RESS to operate an HVAC subsystem, a nominal reference cabin heat input set-point determined by the local HVAC processor, an acceleration of the electric vehicle, a current vehicle speed, an average vehicle speed, and a calibrated average vehicle speed estimate.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 20, 2022
    Inventors: Ibrahim Haskara, Bharatkumar Hegde, Chen-Fang Chang
  • Publication number: 20220327400
    Abstract: A method of outlier detection includes steps as follows. Distances from an input data point to a plurality of subspaces respectively are calculated. A minimum distance is selected from the distances to leave one or more remaining distances. The one or more remaining distances are utilized to normalize the minimum distance to obtain the normalized distance value. Whether the normalized distance value is greater than a threshold value is detected, so as to output a detection result.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 13, 2022
    Inventors: Jeng-Fang CHANG, Jwo-Yuh WU, Liang-Chi HUANG, Rung-Hung GAU
  • Patent number: 11455637
    Abstract: Computer-implemented techniques for repeatable and interpretable divisive analysis. In one embodiment, for example, a method comprises: identifying top-level cohorts of data items based on one or more characteristics of the data items in common; recursively or iteratively dividing a selected top-level cohort in a top-down manner resulting in a plurality of sub-level cohorts arranged in a hierarchy; detecting a particular data item that is a statistical outlier among data items of a leaf cohort in the hierarchy; and causing display of an indication in a computer user interface that the particular data item is an outlier.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: September 27, 2022
    Assignee: COUPA SOFTWARE INCORPORATED
    Inventors: Kiran Ratnapu, Prasanna Kumar, Mikin Faldu, Fang Chang, Maggie M. Joy, Arjun Ramaratnam, Amit Vijayant
  • Patent number: 11370435
    Abstract: A method for controlling automated driving operations of a vehicle includes determining vehicle origin and destination data, and generating a graphical representation of a road network with multiple candidate routes between the vehicle's origin and destination. Road-level data, including speed, turn angle, and/or gradient data, is received for each candidate route, and respective total energy uses are estimated for the vehicle to traverse across the candidate routes. Multiple candidate driving strategies, each having respective speed and acceleration profiles, are determined for the candidate route with the lowest estimated total energy use. An optimal candidate driving strategy is selected through a cost evaluation of the associated speed and acceleration profiles and forward movement simulations of the vehicle over a prediction horizon.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 28, 2022
    Assignees: GM Global Technology Operations LLC, Carnegie Mellon University
    Inventors: Junfeng Zhao, Chen-Fang Chang, Bharatkumar Hegde, Insu Chang, Ragunathan Rajkumar
  • Publication number: 20220185817
    Abstract: The present application relates to chemical compounds of Formula (I), and pharmaceutically acceptable salts thereof, that inhibit IRAK4 and consequently have potential utility in medicine.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 16, 2022
    Inventors: Ina TERSTIEGE, Stefan SCHIESSER, Yafeng XUE, Hui-Fang CHANG, Anna Ingrid Kristina BERGGREN
  • Publication number: 20220165882
    Abstract: A semiconductor includes a gate stack over a substrate. The semiconductor device further includes an interlayer dielectric (ILD) at least partially enclosing the gate stack. The ILD includes a portion doped with a large species material, wherein the portion includes a first sidewall substantially perpendicular to a top-most surface of the ILD, and the portion includes a second sidewall having a positive angle with respect to the first sidewall.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Inventors: Cheng-Ta WU, Chii-Ming WU, Shiu-Ko JANGJIAN, Kun-Tzu LIN, Lan-Fang CHANG
  • Patent number: 11334517
    Abstract: An electronic device is provided. The electronic device includes a board, a first latch mechanism, and an expansion card. A controller is disposed on the board. The first latch mechanism is disposed on the board. The first latch mechanism is electrically connected to the controller. The expansion card is plugged in the first latch mechanism and disposed over the board. The expansion card is electrically connected to the controller through the first latch mechanism. The controller determines a connecting condition of the first latch mechanism according to a connecting signal provided by the expansion card.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 17, 2022
    Assignee: Wiwynn Corporation
    Inventors: Wei-Fang Chang, Yu-Chun Chen, Pei-Zhen Tsai, Chung-Hui Yen
  • Publication number: 20220129405
    Abstract: An electronic device is provided. The electronic device includes a board, a first latch mechanism, and an expansion card. A controller is disposed on the board. The first latch mechanism is disposed on the board. The first latch mechanism is electrically connected to the controller. The expansion card is plugged in the first latch mechanism and disposed over the board. The expansion card is electrically connected to the controller through the first latch mechanism. The controller determines a connecting condition of the first latch mechanism according to a connecting signal provided by the expansion card.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 28, 2022
    Applicant: Wiwynn Corporation
    Inventors: Wei-Fang Chang, Yu-Chun Chen, Pei-Zhen Tsai, Chung-Hui Yen
  • Patent number: 11271114
    Abstract: A semiconductor device includes a gate stack over a substrate. The semiconductor device further includes an interlayer dielectric (ILD) at least partially enclosing the gate stack. The ILD includes a first portion doped with an oxygen-containing material. The ILD further includes a second portion doped with a large species material, wherein the second portion includes a first sidewall substantially perpendicular to a top surface of the substrate, and the second portion includes a second sidewall having a positive angle with respect to the first sidewall.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: March 8, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Cheng-Ta Wu, Chii-Ming Wu, Shiu-Ko Jangjian, Kun-Tzu Lin, Lan-Fang Chang
  • Patent number: 11247571
    Abstract: An energy management system for a vehicle is disclosed. The vehicle includes one or more power sources configured to provide power to one or more recipients. The system includes a controller configured to determine an arbitration vector based at least partially on a state vector and an initial transformation function. The arbitration vector is determined as one or more points for which the initial transformation function attains a maximum value. The controller is configured to determine a current reward based on the arbitration vector and the state vector, the current reward being configured to minimize energy loss in the power sources. The controller is configured to determine an updated transformation function based at least partially on the initial transformation function and a total reward. The controller is configured to arbitrate a power distribution based in part on the updated arbitration vector.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: February 15, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Ibrahim Haskara, Bharatkumar Hegde, Insu Chang, Chen-Fang Chang
  • Publication number: 20210370969
    Abstract: A control system of a vehicle includes: a target speed module configured to, using a parametric driver model and based on first driver parameters, second driver parameters, and vehicle parameters, determine a target vehicle speed trajectory for a future predetermined period; a driver parameters module configured to determine the first driver parameters based on conditions within a predetermined distance in front of the vehicle; and a control module configured to adjust at least one actuator of the vehicle based on the target vehicle speed trajectory and a present vehicle speed.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 2, 2021
    Inventors: Bharatkumar HEGDE, Junfeng ZHAO, Lung En JAN, Chen-fang CHANG, Ragunathan RAJKUMAR
  • Patent number: 11179229
    Abstract: A dental floss type tooth cleaning device that is configured to clean tooth gap in oral cavity is disclosed. The invention is mainly configured to allow the user, who is preparing to use dental floss to clean tooth gap, to quickly wind the dental floss which follows a floss groove and is tightened and fixed. The dental floss can be dismantled quickly and disposed after use, so as to achieve a recyclable effect.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: November 23, 2021
    Inventor: Kuei Fang Chang
  • Patent number: 11167759
    Abstract: Operating a subject vehicle equipped with an adaptive cruise control system includes setting initial states for control parameters, including setting a desired vehicle speed and determining a desired following gap range, wherein the desired following gap range is associated with a lead vehicle. Operation is controlled via the adaptive cruise control system based upon the initial states for the control parameters. Operation also includes monitoring for presence of the lead vehicle. Upon detecting presence of the lead vehicle, an actual following gap is determined between the subject vehicle and the lead vehicle, and the initial states of the control parameters associated with the adaptive cruise control system are adjusted based upon the actual following gap between the subject vehicle and the lead vehicle, and the desired following gap range. Operation is controlled via the adaptive cruise control system based upon the adjusted initial states of the control parameters.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: November 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Junfeng Zhao, Yiran Hu, Dongxu Li, Steven E. Muldoon, Chen-Fang Chang
  • Patent number: 11120646
    Abstract: A fault diagnostic system includes: memory including a fault model, the fault model including: a plurality of failure modes of a vehicle; and symptoms respectively associated with each of the failure modes; an updating module configured to: based on a data set, determine a new failure mode that is not already included in the fault model and new symptoms indicative of the occurrence of the new failure mode; modify the fault model by: adding the new failure mode to the fault model; and adding the new symptoms to the fault model in association with the new failure mode; and re-save the fault model in the memory.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: September 14, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shiming Duan, Chaitanya Sankavaram, Azeem Sarwar, Ibrahim Haskara, Chunhao J. Lee, Chen-fang Chang
  • Patent number: 11101349
    Abstract: A lateral power semiconductor device with a metal interconnect layout for low on-resistance. The metal interconnect layout includes first, second, and third metal layers, each of which include source bars and drain bars. Source bars in the first, second, and third metal layers are electrically connected. Drain bars in the first, second, and third metal layers are electrically connected. In one embodiment, the first and second metal layers are parallel, and the third metal layer is perpendicular to the first and second metal layers. In another embodiment, the first and third metal layer are parallel, and the second metal layer is perpendicular to the first and third metal layers. A nonconductive layer ensures solder bumps electrically connect to only source bars or only drain bars. As a result, a plurality of available pathways exists and enables current to take any of the plurality of available pathways.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 24, 2021
    Assignee: Efficient Power Conversion Corporation
    Inventors: Wen-Chia Liao, Jianjun Cao, Fang Chang Liu, Muskan Sharma
  • Publication number: 20210236793
    Abstract: The invention discloses a multi-tube body adapter which is connected to a plurality of outer tubes for application to a digestive system and a respiratory system of a human body. The multi-tube body adapter includes a housing to form an accommodating space of the multi-chamber. The plurality of chambers is not in communication with each other. One end of the plurality of chambers respectively provides a connection port and the other end of the plurality of chambers is commonly connected to an extension having a plurality of openings. By connecting with the chamber, the connection port and the opening, a supply path for separately providing the supply path of the respiratory system and the digestive system can be formed.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 5, 2021
    Inventors: YI-CHING LIU, HSIN-HUA TSAI, CHIA-FANG CHANG
  • Publication number: 20210146790
    Abstract: An energy management system for a vehicle is disclosed. The vehicle includes one or more power sources configured to provide power to one or more recipients. The system includes a controller configured to determine an arbitration vector based at least partially on a state vector and an initial transformation function. The arbitration vector is determined as one or more points for which the initial transformation function attains a maximum value. The controller is configured to determine a current reward based on the arbitration vector and the state vector, the current reward being configured to minimize energy loss in the power sources. The controller is configured to determine an updated transformation function based at least partially on the initial transformation function and a total reward. The controller is configured to arbitrate a power distribution based in part on the updated arbitration vector.
    Type: Application
    Filed: November 18, 2019
    Publication date: May 20, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ibrahim Haskara, Bharatkumar Hegde, Insu Chang, Chen-Fang Chang
  • Patent number: 10988130
    Abstract: A method for controlling continuous and discrete actuators (e.g., modes) in a powertrain system includes receiving preview information from a sensor(s) describing an upcoming dynamic state at a future time point, and providing control inputs for the actuators to a controller that includes the preview information. The input set collectively describes a future torque or speed output state at the future time point. The controller processes the input set via a dynamical predictive model, in real time, to determine control solutions to take at the present time point for implementing the dynamic state at the future time point. A lowest opportunity cost control solution is determined and optimized. The controller executes the optimized solution at the present time step.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: April 27, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Ibrahim Haskara, Chen-fang Chang
  • Patent number: 10983029
    Abstract: A method of detecting misfire in a combustion engine of a motor vehicle engine includes measuring a speed of a crankshaft, calculating a modal coefficient for each cylinder of the combustion engine, and indicating a misfire for at least one of the cylinders based on the calculation of the modal coefficients.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: April 20, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yongjie Zhu, Jun-mo Kang, Chen-fang Chang, David J. Brooks