Patents by Inventor Xiangchao Yuan

Xiangchao Yuan 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).

  • Technique for determining performance characteristics of electronic devices and systems
    Patent number: 8489345
    Abstract: A technique for determining performance characteristics of electronic devices and systems is disclosed. In one embodiment, the technique is realized by measuring a first response on a first transmission line from a single pulse transmitted on the first transmission line, and then measuring a second response on the first transmission line from a single pulse transmitted on at least one second transmission line, wherein the at least one second transmission line is substantially adjacent to the first transmission line. The worst case bit sequences for transmission on the first transmission line and the at least one second transmission line are then determined based upon the first response and the second response for determining performance characteristics associated with the first transmission line.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: July 16, 2013
    Assignee: Rambus Inc.
    Inventors: Haw-Jyh Liaw, Xiangchao Yuan, Mark A. Horowitz
  • Technique for determining performance characteristics of electronic devices and systems
    Patent number: 8055458
    Abstract: A technique for determining performance characteristics of electronic devices and systems is disclosed. In one embodiment, the technique is realized by measuring a first response on a first transmission line from a single pulse transmitted on the first transmission line, and then measuring a second response on the first transmission line from a single pulse transmitted on at least one second transmission line, wherein the at least one second transmission line is substantially adjacent to the first transmission line. The worst case bit sequences for transmission on the first transmission line and the at least one second transmission line are then determined based upon the first response and the second response for determining performance characteristics associated with the first transmission line.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 8, 2011
    Assignee: Rambus Inc.
    Inventors: Haw-Jyh Liaw, Xiangchao Yuan, Mark A. Horowitz
  • Technique for determining performance characteristics of electronic devices and systems
    Patent number: 7542857
    Abstract: A technique for determining performance characteristics of electronic devices and systems is disclosed. In one embodiment, the technique is realized by measuring a first response on a first transmission line from a single pulse transmitted on the first transmission line, and then measuring a second response on the first transmission line from a single pulse transmitted on at least one second transmission line, wherein the at least one second transmission line is substantially adjacent to the first transmission line. The worst case bit sequences for transmission on the first transmission line and the at least one second transmission line are then determined based upon the first response and the second response for determining performance characteristics associated with the first transmission line.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: June 2, 2009
    Assignee: Rambus Inc.
    Inventors: Haw-Jyh Liaw, Xiangchao Yuan, Mark A. Horowitz
  • Technique for determining performance characteristics of electronic devices and systems
    Publication number: 20060136153
    Abstract: A technique for determining performance characteristics of electronic devices and systems is disclosed. In one embodiment, the technique is realized by measuring a first response on a first transmission line from a single pulse transmitted on the first transmission line, and then measuring a second response on the first transmission line from a single pulse transmitted on at least one second transmission line, wherein the at least one second transmission line is substantially adjacent to the first transmission line. The worst case bit sequences for transmission on the first transmission line and the at least one second transmission line are then determined based upon the first response and the second response for determining performance characteristics associated with the first transmission line.
    Type: Application
    Filed: February 16, 2006
    Publication date: June 22, 2006
    Applicant: Rambus Inc.
    Inventors: Haw-Jyh Liaw, Xiangchao Yuan, Mark Horowitz