Patents by Inventor Yung-Chen Chang

Yung-Chen 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).

  • Patent number: 11966628
    Abstract: A memory device, includes a memory array for storing a plurality of vector data each of which has an MSB vector and a LSB vector. The memory array includes a plurality of memory units each of which has a first bit and a second bit. The first bit is used to store the MSB vector of each vector data, the second bit is used to store the LSB vector of each vector data. A bit line corresponding to each vector data executes one time of bit-line-setup, and reads the MSB vector and the LSB vector of each vector data according to the bit line. The threshold voltage distribution of each memory unit is divided into N states, where N is a positive integer and N is less than 2 to the power of 2, and the effective bit number stored by each memory unit is less than 2.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 23, 2024
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Wei-Chen Wang, Han-Wen Hu, Yung-Chun Li, Huai-Mu Wang, Chien-Chung Ho, Yuan-Hao Chang, Tei-Wei Kuo
  • Publication number: 20240087896
    Abstract: Methods of forming line-end extensions and devices having line-end extensions are provided. In some embodiments, a method includes forming a patterned photoresist on a first region of a hard mask layer. A line-end extension region is formed in the hard mask layer. The line-end extension region extends laterally outward from an end of the first region of the hard mask layer. The line-end extension region may be formed by changing a physical property of the hard mask layer at the line-end extension region.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Chih-Min HSIAO, Chien-Wen LAI, Ru-Gun LIU, Chih-Ming LAI, Shih-Ming CHANG, Yung-Sung YEN, Yu-Chen CHANG
  • Publication number: 20230400367
    Abstract: An electric-carrier power-supply device for use in an electric carrier is provided. The electric-carrier power-supply device includes a piezoresistive sensor, a battery interface, and a power-management unit (PMU). The battery interface is connected to an on-board battery and receives power from the on-board battery. The PMU controls power to a motor of the electric carrier. A piezoresistive strain gage is disposed between a contact area between the battery interface and the on-board battery, and is used to detect a pressure value of the contact area. The piezoresistive sensor receives the pressure value detected by the piezoresistive strain gage, and converts the pressure value into a resistance value. The piezoresistive sensor determines whether the resistance value is within a safe resistance value range to generate a resistance-value-determination signal. The PMU determines whether to provide power to the motor is according to the resistance-value-determination signal.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 14, 2023
    Inventors: Chen Yi LIANG, Yung Chen CHANG
  • Publication number: 20200161726
    Abstract: A portable electronic apparatus and a battery temperature control method thereof are provided. The portable electronic apparatus includes a battery module and a temperature adjustment module. The temperature adjustment module is coupled to the battery module and configured to obtain a temperature value of the battery module from the battery module. The temperature adjustment module heats or cools the battery module according to the temperature value of the battery module to control the temperature of the battery module.
    Type: Application
    Filed: March 4, 2019
    Publication date: May 21, 2020
    Applicant: Wistron Corporation
    Inventors: Chen-Yi Liang, Yung-Chen Chang, Wei-Lun Lin
  • Patent number: 10442312
    Abstract: An air-charging unmanned aerial vehicle set is provided, including a charging unmanned aerial vehicle and a functional unmanned aerial vehicle. The charging unmanned aerial vehicle includes a first unmanned aerial vehicle body, a plurality of first propeller units, a rotation stage, a first battery slot and a second battery slot. The first propeller units are disposed on the first unmanned aerial vehicle body. The rotation stage is disposed on the first unmanned aerial vehicle body. The first battery slot and the second battery slot are disposed on the rotation stage. The functional unmanned aerial vehicle includes a second unmanned aerial vehicle body, a plurality of second propeller units, a third battery slot and a battery cover. The second propeller units, the third battery slot and the battery cover are disposed on the second unmanned aerial vehicle body.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 15, 2019
    Assignee: WISTRON CORP.
    Inventors: Chen-Yi Liang, Yung Chen Chang, Shih-Yuan Chang
  • Patent number: 10333345
    Abstract: An energy management method capable of increasing stability of energy supply is applied to an energy storage device. The energy storage device includes a casing, an energy storage unit, an electronic latching component and a control unit. The energy storage unit is detachably disposed inside the casing. A constraining structure is disposed on an outer surface of the energy storage unit. The electronic latching component is disposed on the casing. The control unit is electrically connected to the energy storage unit and the electronic latching component. The control unit detects storage capacity of the energy storage unit, compares the storage capacity with a threshold, and determines whether to engage the electronic latching component with the constraining structure in accordance with a comparison result, so as to constrain a movement of the energy storage unit relative to the casing.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 25, 2019
    Assignee: Wistron Corporation
    Inventors: Chen-Yi Liang, Yung-Chen Chang
  • Publication number: 20190084432
    Abstract: An air-charging unmanned aerial vehicle set is provided, including a charging unmanned aerial vehicle and a functional unmanned aerial vehicle. The charging unmanned aerial vehicle includes a first unmanned aerial vehicle body, a plurality of first propeller units, a rotation stage, a first battery slot and a second battery slot. The first propeller units are disposed on the first unmanned aerial vehicle body. The rotation stage is disposed on the first unmanned aerial vehicle body. The first battery slot and the second battery slot are disposed on the rotation stage. The functional unmanned aerial vehicle includes a second unmanned aerial vehicle body, a plurality of second propeller units, a third battery slot and a battery cover. The second propeller units, the third battery slot and the battery cover are disposed on the second unmanned aerial vehicle body.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 21, 2019
    Inventors: Chen-Yi LIANG, Yung Chen CHANG, Shih-Yuan CHANG
  • Publication number: 20180076660
    Abstract: An energy management method capable of increasing stability of energy supply is applied to an energy storage device. The energy storage device includes a casing, an energy storage unit, an electronic latching component and a control unit. The energy storage unit is detachably disposed inside the casing. A constraining structure is disposed on an outer surface of the energy storage unit. The electronic latching component is disposed on the casing. The control unit is electrically connected to the energy storage unit and the electronic latching component. The control unit detects storage capacity of the energy storage unit, compares the storage capacity with a threshold, and determines whether to engage the electronic latching component with the constraining structure in accordance with a comparison result, so as to constrain a movement of the energy storage unit relative to the casing.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 15, 2018
    Inventors: Chen-Yi Liang, Yung-Chen Chang