Patents by Inventor Xin Y. Zhang

Xin Y. Zhang 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).

  • Multilayer Films and Methods of Making the Same
    Publication number: 20190322088
    Abstract: Disclosed are multilayer films which can provide desired film performance and balanced overall performance suited for various applications.
    Type: Application
    Filed: November 28, 2017
    Publication date: October 24, 2019
    Inventors: Zhen-Yu Zhu, Xiao-Chuan Wang, Stefan B. Ohlsson, Achiel J.M. Van Loon, Xin Y. Zhang, Michael Martin-Gatius
  • Clamp circuit for electrical overstress and electrostatic discharge
    Patent number: 10079487
    Abstract: An apparatus includes a device, a comparison circuit, and a switch. The device includes a first terminal coupled to a first power supply signal, and a second terminal coupled to a ground reference. The comparison circuit is configured to compare a first voltage level on the first power supply signal to a second voltage level of a second power supply signal, and enable the device in response to a determination that the first voltage level is greater than the second voltage level. The switch circuit is configured to couple a power supply terminal of the comparison circuit to the first power supply signal in response to determining that the first voltage level is greater than the second voltage level, and to couple the power supply terminal to the second power supply signal in response to determining that the first voltage level is less than the second voltage level.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 18, 2018
    Assignee: Apple Inc.
    Inventors: Xiaofeng Fan, Xin Y. Zhang, Junjun Li
  • CLAMP CIRCUIT FOR ELECTRICAL OVERSTRESS AND ELECTROSTATIC DISCHARGE
    Publication number: 20170214241
    Abstract: An apparatus includes a device, a comparison circuit, and a switch. The device includes a first terminal coupled to a first power supply signal, and a second terminal coupled to a ground reference. The comparison circuit is configured to compare a first voltage level on the first power supply signal to a second voltage level of a second power supply signal, and enable the device in response to a determination that the first voltage level is greater than the second voltage level. The switch circuit is configured to couple a power supply terminal of the comparison circuit to the first power supply signal in response to determining that the first voltage level is greater than the second voltage level, and to couple the power supply terminal to the second power supply signal in response to determining that the first voltage level is less than the second voltage level.
    Type: Application
    Filed: June 7, 2016
    Publication date: July 27, 2017
    Inventors: Xiaofeng Fan, Xin Y. Zhang, Junjun Li