Patents by Inventor Chih-Cheng Yu

Chih-Cheng Yu 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).

  • Paper feeding device
    Patent number: 11952231
    Abstract: A paper feeding device includes a pickup roller mechanism disposed at an entrance of a paper feeding path, and a separation mechanism disposed to a rear end of the pickup roller mechanism. The pickup roller mechanism includes a first pickup unit positioned at the entrance of the paper feeding path, a second pickup unit mounted to a rear end of the first pickup unit, and a third pickup unit disposed to a rear end of the second pickup unit. The second pickup unit includes a first driving gear. The third pickup unit includes a second driving gear, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: April 9, 2024
    Assignee: Foxlink Image Technology Co., Ltd.
    Inventors: Wei Pin Hsieh, Chih Cheng Yu
  • Multi-Stage Bit Line Pre-Charge
    Publication number: 20240029769
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Application
    Filed: July 26, 2023
    Publication date: January 25, 2024
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • Multi-stage bit line pre-charge
    Patent number: 11749321
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 5, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • PAPER FEEDING DEVICE
    Publication number: 20230009156
    Abstract: A paper feeding device includes a pickup roller mechanism disposed at an entrance of a paper feeding path, and a separation mechanism disposed to a rear end of the pickup roller mechanism. The pickup roller mechanism includes a first pickup unit positioned at the entrance of the paper feeding path, a second pickup unit mounted to a rear end of the first pickup unit, and a third pickup unit disposed to a rear end of the second pickup unit. The second pickup unit includes a first driving gear. The third pickup unit includes a second driving gear, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear.
    Type: Application
    Filed: April 11, 2022
    Publication date: January 12, 2023
    Inventors: Wei Pin Hsieh, Chih Cheng Yu
  • Multi-Stage Bit Line Pre-Charge
    Publication number: 20210383847
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • Multi-stage bit line pre-charge
    Patent number: 11100964
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 24, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen
  • Multi-Stage Bit Line Pre-Charge
    Publication number: 20210249057
    Abstract: Systems and method are provided for a memory circuit that includes a bit cell responsive to a bit line signal line and a bit line bar signal line configured to store a bit of data. A pre-charge circuit is configured to charge one of the bit line and bit line bar signal lines prior to a read operation, where the pre-charge circuit includes a first pre-charge component and a second pre-charge component, the first and second pre-charge components being individually controllable for charging the bit line and bit line bar signal lines.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 12, 2021
    Inventors: Wei-Cheng Wu, Kao-Cheng Lin, Chih-Cheng Yu, Pei-Yuan Li, Chien-Chen Lin, Wei Min Chan, Yen-Huei Chen