Patents by Inventor Drew George Doblar

Drew George Doblar 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).

  • Equalizer system having a tunable active inductor
    Patent number: 7880568
    Abstract: An linear equalizer system for a transmission channel includes an active inductor with a tunable inductance and quality factor. The active inductor includes a transconducting element. A current steering digital to analog converter controls the flow of a bias current through the transconducting element to tune the active inductor.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: February 1, 2011
    Assignee: Oracle America, Inc.
    Inventors: Arif A. Amin, Baoqing Huang, Waseem Ahmad, Dawei Huang, Drew George Doblar
  • EQUALIZER SYSTEM HAVING A TUNABLE ACTIVE INDUCTOR
    Publication number: 20090074048
    Abstract: An linear equalizer system for a transmission channel includes an active inductor with a tunable inductance and quality factor. The active inductor includes a transconducting element. A current steering digital to analog converter controls the flow of a bias current through the transconducting element to tune the active inductor.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Inventors: Arif A. Amin, Baoqing Huang, Waseem Ahmad, Dawei Huang, Drew George Doblar
  • Method and apparatus for dynamic termination logic of data buses
    Patent number: 6239619
    Abstract: An apparatus for dynamic termination logic of bi-directional data buses and methods of operating the same result in bi-directional data buses with improved data transfer performance. The bi-directional data bus for wire-or data transfers comprises a first end-driver coupled to a first end of the data bus configured to drive the first end of the data bus with a first signal. The second end-driver coupled to the second end of the data bus is configured to dynamically terminate the first signal from the first end-driver.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: May 29, 2001
    Assignees: Sun Microsystems, Inc., LSI Logic Corporation
    Inventors: Leo Yuan, Chaim Amir, Derek Shuntao Tsai, Drew George Doblar, Jonathan Eric Starr, Trung Thanh Nguyen