Patents by Inventor Shayang Zhang

Shayang 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).

  • State retention power gated cell
    Patent number: 8816741
    Abstract: A state retention power gated (SRPG) cell includes an input control circuit having an input coupled to an input signal and an output. The input control circuit includes has transistors configured as a first inverter transmission gate. The transistors also connect in series at least one transistor controlled by a power gating signal. A first latch has an input coupled to the output of the input control circuit and an output. A transmission gate has an input coupled to the output of the first latch and an output that is an output of the SRPG cell. A second latch has an input coupled to the output of the transmission gate and an output that also is an output of the SRPG cell. A second inverter transmission gate has an input coupled to the output of the second latch.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: August 26, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Yifeng Liu, Zhe Chen, Shayang Zhang, Jian Zhou
  • STATE RETENTION POWER GATED CELL
    Publication number: 20140118046
    Abstract: A state retention power gated (SRPG) cell includes an input control circuit having an input coupled to an input signal and an output. The input control circuit includes has transistors configured as a first inverter transmission gate. The transistors also connect in series at least one transistor controlled by a power gating signal. A first latch has an input coupled to the output of the input control circuit and an output. A transmission gate has an input coupled to the output of the first latch and an output that is an output of the SRPG cell. A second latch has an input coupled to the output of the transmission gate and an output that also is an output of the SRPG cell. A second inverter transmission gate has an input coupled to the output of the second latch.
    Type: Application
    Filed: August 13, 2013
    Publication date: May 1, 2014
    Inventors: Yifeng Liu, Zhe Chen, Shayang Zhang, Jian Yuan