Patents by Inventor Kambiz Kaviani

Kambiz Kaviani 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).

  • Publication number: 20090153215
    Abstract: A circuit includes a clock generator to provide a clock signal, and a clock distribution circuit coupled to the clock generator and a plurality of pairs of outputs. The clock distribution circuit includes a plurality of adjustment circuits to generate a plurality of pairs of clock signals in accordance with the clock signal. A respective adjustment circuit in the plurality of adjustment circuits is to provide a respective pair of clock signals in the plurality of pairs of clock signals to a respective pair of outputs in the plurality of pairs of outputs. The respective pair of clock signals includes a first clock signal and a second clock signal. The first clock signal is a complement of the second clock signal and duty-cycle and skew errors in the first clock signal and the second clock signal are less than corresponding pre-determined values.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 18, 2009
    Inventors: Kambiz Kaviani, Tsu-Ju Chin
  • Patent number: 7489176
    Abstract: A circuit includes a clock generator to provide a clock signal, and a clock distribution circuit coupled to the clock generator and a plurality of pairs of outputs. The clock distribution circuit includes a plurality of adjustment circuits to generate a plurality of pairs of clock signals in accordance with the clock signal. A respective adjustment circuit in the plurality of adjustment circuits is to provide a respective pair of clock signals in the plurality of pairs of clock signals to a respective pair of outputs in the plurality of pairs of outputs. The respective pair of clock signals includes a first clock signal and a second clock signal. The first clock signal is a complement of the second clock signal and duty-cycle and skew errors in the first clock signal and the second clock signal are less than corresponding pre-determined values.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 10, 2009
    Assignee: Rambus Inc.
    Inventors: Kambiz Kaviani, Tsu-Ju Chin
  • Publication number: 20070252631
    Abstract: A circuit includes a clock generator to provide a clock signal, and a clock distribution circuit coupled to the clock generator and a plurality of pairs of outputs. The clock distribution circuit includes a plurality of adjustment circuits to generate a plurality of pairs of clock signals in accordance with the clock signal. A respective adjustment circuit in the plurality of adjustment circuits is to provide a respective pair of clock signals in the plurality of pairs of clock signals to a respective pair of outputs in the plurality of pairs of outputs. The respective pair of clock signals includes a first clock signal and a second clock signal. The first clock signal is a complement of the second clock signal and duty-cycle and skew errors in the first clock signal and the second clock signal are less than corresponding pre-determined values.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Inventors: Kambiz Kaviani, Tsu-Ju Chin
  • Patent number: 7057460
    Abstract: A differential amplifier with adaptive biasing and offset cancellation is disclosed. In one particular exemplary embodiment, the differential amplifier may comprise a first electrical path comprising a first transistor and a first resistance element, and a second electrical path comprising a second transistor and a second resistance element, where the first and the second electrical paths are coupled to a voltage source on one end and to a current source on the other end. The differential amplifier may further comprise a first adjustable current source coupled between the voltage source and a first node located between the first transistor and the first resistance element, and a second adjustable current source coupled between the voltage source and a second node located between the second transistor and the second resistance element, wherein the first and second adjustable current sources provide biasing currents for the two electrical paths.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: June 6, 2006
    Assignee: Rambus, Inc.
    Inventors: Kambiz Kaviani, Kun-Yung Chang, Abhijit Abhyankar
  • Publication number: 20050285678
    Abstract: A differential amplifier with adaptive biasing and offset cancellation is disclosed. In one particular exemplary embodiment, the differential amplifier may comprise a first electrical path comprising a first transistor and a first resistance element, and a second electrical path comprising a second transistor and a second resistance element, where the first and the second electrical paths are coupled to a voltage source on one end and to a current source on the other end. The differential amplifier may further comprise a first adjustable current source coupled between the voltage source and a first node located between the first transistor and the first resistance element, and a second adjustable current source coupled between the voltage source and a second node located between the second transistor and the second resistance element, wherein the first and second adjustable current sources provide biasing currents for the two electrical paths.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 29, 2005
    Inventors: Kambiz Kaviani, Kun-Yung Chang, Abhijit Abhyankar