Patents by Inventor Weihua YI

Weihua YI 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: 11941108
    Abstract: An apparatus, a method, and a system are presented in which the apparatus includes an interface control circuit that may be configured to receive a message including a cryptographic keyword and a policy value. The policy value may include one or more data bits indicative of one or more policies that define allowable usage of the cryptographic keyword. The apparatus also includes a security circuit that may be configured to extract the cryptographic keyword and the policy value from the message, and to apply at least one policy of the one or more policies to usage of the cryptographic keyword in response to a determination that an authentication of the message succeeded.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: March 26, 2024
    Assignee: Apple Inc.
    Inventors: Timothy R. Paaske, Weihua Mao, Shu-Yi Yu
  • Patent number: 10429685
    Abstract: An embedded touch panel (100) having a high resistance film (70) comprises a sequentially stacked first substrate (10), thin-film transistor substrate (20), liquid crystal layer (30), color filter (40), touch sensing layer (50), second substrate (60), and the high resistance film (70). A plurality of mutually insulated sensing wires are disposed on a surface of the thin-film transistor substrate (20) facing toward the liquid crystal layer (30). The thin-film transistor substrate (20) and the touch sensing layer (50) work together to embed a functionality of a touch panel into liquid crystal pixels, reducing a thickness of the touch panel (100). The high resistance film (70) is disposed on a surface of the second substrate (60) facing away from the touch sensing layer (50), and is electrically connected to the thin-film transistor substrate (20).
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: October 1, 2019
    Assignee: WGTECH (JIANGXI) CO., LTD.
    Inventors: Weihua Yi, Xun Zhang, Huirong Zhou, Bolun Zhang, Rong Yu
  • Patent number: 10365508
    Abstract: A touch control display device having a high resistance layer and a preparation method thereof, the touch control display device (100) having a high resistance layer comprising, stacked sequentially, a thin film transistor substrate (10), a touch control sensing layer (40), a liquid crystal layer (20), a color optical filter substrate (30) and a high resistance layer (50). The material of the high resistance layer (50) is a mixture of graphite oxide and tin oxide.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 30, 2019
    Assignee: WGTECH (JIANGXI) CO., LTD.
    Inventors: Weihua Yi, Xun Zhang, Huirong Zhou, Bolun Zhang, Junwen Kuang
  • Publication number: 20180314095
    Abstract: An embedded touch panel (100) having a high resistance film (70) comprises a sequentially stacked first substrate (10), thin-film transistor substrate (20), liquid crystal layer (30), color filter (40), touch sensing layer (50), second substrate (60), and the high resistance film (70). A plurality of mutually insulated sensing wires are disposed on a surface of the thin-film transistor substrate (20) facing toward the liquid crystal layer (30). The thin-film transistor substrate (20) and the touch sensing layer (50) work together to embed a functionality of a touch panel into liquid crystal pixels, reducing a thickness of the touch panel (100). The high resistance film (70) is disposed on a surface of the second substrate (60) facing away from the touch sensing layer (50), and is electrically connected to the thin-film transistor substrate (20).
    Type: Application
    Filed: October 25, 2016
    Publication date: November 1, 2018
    Applicants: WGTECH (JIANGXI) CO., LTD., WGTECH (JIANGXI) CO., LTD.
    Inventors: Weihua YI, Xun ZHANG, Huirong ZHOU, Bolun ZHANG, Rong YU
  • Publication number: 20180314094
    Abstract: A touch control display device having a high resistance layer and a preparation method thereof, the touch control display device (100) having a high resistance layer comprising, stacked sequentially, a thin film transistor substrate (10), a touch control sensing layer (40), a liquid crystal layer (20), a color optical filter substrate (30) and a high resistance layer (50). The material of the high resistance layer (50) is a mixture of graphite oxide and tin oxide.
    Type: Application
    Filed: October 21, 2016
    Publication date: November 1, 2018
    Applicants: WGTECH (JIANGXI) CO., LTD., WGTECH (JIANGXI) CO., LTD.
    Inventors: Weihua YI, Xun ZHANG, Huirong ZHOU, Bolun ZHANG, Junwen KUANG