Patents by Inventor Chinh Phan

Chinh Phan 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 of performance measurement for a scalable network
    Patent number: 7808902
    Abstract: Systems and methods for measuring the performance of a scalable network are disclosed. In one embodiment, a system configured in accordance with this disclosure may comprise a packet generator for providing test packets to a network under test; and a packet count unit for counting test packet received from the network under test. The system may be configured to test networks of various bandwidths such as OC-3 and OC-12 level networks.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: October 5, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Donald Pham, Duc Pham, Chinh Phan
  • Printed circuit boards for high-speed communication
    Publication number: 20070090894
    Abstract: Apparatus and method for communicating high-speed signals between a primary printed circuit board and one or more secondary printed circuit boards. The high-speed signals are communicated between the primary printed circuit boards and the secondary printed circuit boards through multi-layer flexible conductors.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 26, 2007
    Inventors: Chinh Phan, Robert Lombaerde, Jignesh Shah
  • Filter arrangement for shaping a pulse propagated over pots wiring, and a method of manufacturing the same
    Patent number: 6771774
    Abstract: A filter arrangement, for shaping a signal transmitted over POTS wiring, includes an input to receive a signal. The filter arrangement includes a signal path from the input to an output that is coupled to POTS wiring. The transmit path includes a high-pass filter, a low-pass filter, and a trap filter coupled between the high and the low-pass filter. The trap filter operationally introduces a filter zero at a resonant frequency of the high-pass filter.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 3, 2004
    Assignee: Tut Systems, Inc.
    Inventors: Chinh Phan, Gihad Ghaibeh