Patents by Inventor Meng C. Chong

Meng C. Chong 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).

  • Method and apparatus for power glitch detection in integrated circuits
    Patent number: 9541603
    Abstract: A method and apparatus for power glitch detection in IC's is disclosed. In one embodiment, a method includes a detection circuit in an IC detecting a voltage transient wherein a value of a supply voltage has at least momentarily fallen below a reference voltage value. Responsive thereto, the detection circuit may cause a logic value to be stored in a register indicating that the detection circuit has detected the supply voltage falling below the reference voltage. The IC may include a number of detection circuits coupled to the register, each of which may provide a corresponding indication of detecting the supply voltage falling below the reference voltage. The detection circuits may be placed at different locations, and thus reading the register may yield information indicating the locations where, if any, such voltage transients occurred.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: January 10, 2017
    Assignee: Apple Inc.
    Inventors: Brian S. Park, Patrick D. McNamara, Kwang M. Lee, Meng C. Chong, Geertjan Joordens, Raman S. Thiara, Anh T. Hoang, John P. Gonzalez
  • Method and Apparatus for Power Glitch Detection in Integrated Circuits
    Publication number: 20150015283
    Abstract: A method and apparatus for power glitch detection in IC's is disclosed. In one embodiment, a method includes a detection circuit in an IC detecting a voltage transient wherein a value of a supply voltage has at least momentarily fallen below a reference voltage value. Responsive thereto, the detection circuit may cause a logic value to be stored in a register indicating that the detection circuit has detected the supply voltage falling below the reference voltage. The IC may include a number of detection circuits coupled to the register, each of which may provide a corresponding indication of detecting the supply voltage falling below the reference voltage. The detection circuits may be placed at different locations, and thus reading the register may yield information indicating the locations where, if any, such voltage transients occurred.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 15, 2015
    Inventors: Brian S. Park, Patrick D. McNamara, Kwang M. Lee, Meng C. Chong, Geertjan Joordens, Raman S. Thiara, Anh T. Hoang, John P. Gonzalez