Patents by Inventor Andrew Chung Chun Lam

Andrew Chung Chun Lam 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).

  • Two-part interface PHY for system-on-chip devices
    Patent number: 10802566
    Abstract: A two-part interface PHY configuration includes a low-voltage PHY portion configured for instantiation on an SoC device fabricated using a cutting-edge technology node, and a high-voltage PHY portion configured for instantiation on a power management device (PMD) fabricated using a high-voltage technology node. The low-voltage PHY portion includes interface control and low-voltage I/O circuitry configured to transfer outgoing 3.3V data signals to the high-voltage PHY portion at low voltage levels, and the high-voltage PHY portion includes a driver circuit that retransmits the low-voltage data signals onto a bus at the required 3.3V level. Incoming 3.3V data signals pass through an attenuator circuit before being processed using a receiver circuit provided on the low-voltage PHY portion. In USB applications, outgoing USB High Speed data signals are generated by a driver circuit provided on a low-voltage USB PHY portion.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: October 13, 2020
    Assignee: Synopsys, Inc.
    Inventors: Andrew Chung Chun Lam, Davit Petrosyan, Dino A. Toffolon, Morten Christiansen