Patents by Inventor Wanpeng Cao

Wanpeng Cao 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).

  • Systems and methods for duplex communication
    Patent number: 9912708
    Abstract: A closed circuit video communication device includes an input/output configured to receive a streaming video signal on a first dedicated physical communication channel and to send upstream communication on the first dedicated physical communication channel; a video output configured to send the streaming video signal on a second dedicated physical communication channel; and a command input configured to receive commands on a third dedicated physical communication channel and to provide the commands to the input/output for sending as upstream communication on the first dedicated physical communication channel.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 6, 2018
    Assignee: Divimath, Inc.
    Inventors: Caizhang Zhou, Wanpeng Cao, Chi-Ming Chu
  • ADAPTIVE CABLE EQUALIZER FOR DIGITAL COMMUNICATION
    Publication number: 20170033957
    Abstract: A single stage cable equalizer with a differential input stage, a source degeneration RC network and a folded cascode output stage achieves the inverse transfer function of a cable with a 1st order attenuation. The equalizer can be made adaptive by tuning the design parameters of the equalizer, such as source degeneration capacitor C in a feedback loop configuration. Multiple single stage equalizers can be cascoded to equalize the cable with a higher order attenuation.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventor: Wanpeng Cao
  • Systems and Methods for Duplex Communication
    Publication number: 20150244752
    Abstract: A closed circuit video communication device includes an input/output configured to receive a streaming video signal on a first dedicated physical communication channel and to send upstream communication on the first dedicated physical communication channel; a video output configured to send the streaming video signal on a second dedicated physical communication channel; and a command input configured to receive commands on a third dedicated physical communication channel and to provide the commands to the input/output for sending as upstream communication on the first dedicated physical communication channel
    Type: Application
    Filed: February 12, 2015
    Publication date: August 27, 2015
    Inventors: Caizhang Zhou, Wanpeng Cao, Chi-Ming Chu