Patents by Inventor Minchao Zhou

Minchao Zhou 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).

  • Temperature sensor with reduced power supply voltage sensitivity
    Patent number: 11018654
    Abstract: Circuitry for determining temperature of an integrated circuit device includes, on the device, a ring oscillator and a bias current generator. The bias current generator is selectably operable in (i) a first mode having a first sensitivity to device temperature or (ii) a second mode having a second sensitivity to device temperature, to provide bias current for the ring oscillator. A controller operates the bias current generator in the first mode and records a frequency output of the ring oscillator, then operates the bias current generator in the second mode and records a frequency output of the ring oscillator, and determines the temperature of the integrated circuit device from a ratio of (a) the frequency output of the ring oscillator while the bias current generator operates in the first mode to (b) the frequency output of the ring oscillator while the bias current generator operates in the second mode.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: May 25, 2021
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Lei Luo, Song Chen, Jiancheng Zhang, Minchao Zhou