Patents by Inventor Robert Quan

Robert Quan 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).

  • Patent number: 8990280
    Abstract: In some embodiments, a data processing system including an operation unit including circuitry configurable to perform any selected one of a number of operations on data (e.g., audio data) and a configuration unit configured to assert configuration information to configure the operation unit to perform the selected operation. When the operation includes matrix multiplication of a data vector and a matrix whose coefficients exhibit symmetry, the configuration information preferably includes bits that determine signs of all but magnitudes of only a subset of the coefficients. When the operation includes successive addition and subtraction operations on operand pairs, the configuration information preferably includes bits that configure the operation unit to operate in an alternating addition/subtraction mode to perform successive addition and subtraction operations on each pair of data values of a sequence of data value pairs.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: March 24, 2015
    Assignee: Nvidia Corporation
    Inventors: Partha Sriram, Robert Quan, Bhagawan Reddy Gnanapa, Ahmet Karakas
  • Patent number: 7433981
    Abstract: An architecture is described, wherein an operation unit, such as an arithmetic unit, is used for performing a variety of repetitive tasks. The present invention includes embodiments and related methods for power and computationally efficiency in performing repetitive tasks. The system includes an operation unit and a configuration control unit that is in communication with a processor. The processor sends the configuration information to the configuration unit and the configuration unit provides configuration information to the operation unit. The method includes configuring the operation unit using the configuration unit based on the configuration information, retrieving data from a designated location upon which the operation unit operates, and producing a result that is formatted and send to a destination.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 7, 2008
    Assignee: Nvidia Corporation
    Inventors: Robert Quan, Parthasarathy Sriram
  • Publication number: 20070078661
    Abstract: In some embodiments, a data processing system including an operation unit including circuitry configurable to perform any selected one of a number of operations on data (e.g., audio data) and a configuration unit configured to assert configuration information to configure the operation unit to perform the selected operation. When the operation includes matrix multiplication of a data vector and a matrix whose coefficients exhibit symmetry, the configuration information preferably includes bits that determine signs of all but magnitudes of only a subset of the coefficients. When the operation includes successive addition and subtraction operations on operand pairs, the configuration information preferably includes bits that configure the operation unit to operate in an alternating addition/subtraction mode to perform successive addition and subtraction operations on each pair of data values of a sequence of data value pairs.
    Type: Application
    Filed: November 14, 2006
    Publication date: April 5, 2007
    Inventors: Partha Sriram, Robert Quan, Bhagawan Gnanapa, Ahmet Karakas
  • Patent number: 6922771
    Abstract: The present invention provides a vector floating point unit (FPU) comprising a product-terms bus, a summation bus, a plurality of FIFO (first in first out) registers, a crossbar operand multiplexor coupled, a floating point multiplier, and a floating point adder. The floating point multiplier and the floating point adder are disposed between the crossbar operand multiplexor and the product-terms and summation buses, and are in parallel to each other. The invention also provides the configuration register and the command register in order to provide flexible architecture and the capability to fine-tune the performance to a particular application. The invention performs the multiplication operation and the addition operation in a pipelined fashion. Once the pipeline is filled, the invention outputs one multiplication output and one addition output at each clock cycle.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: July 26, 2005
    Assignee: PortalPlayer, Inc.
    Inventors: Jason Seung-Min Kim, Robert Quan
  • Publication number: 20030204706
    Abstract: The present invention provides a vector floating point unit (FPU) comprising a product-terms bus, a summation bus, a plurality of FIFO (first in first out) registers, a crossbar operand multiplexor coupled, a floating point multiplier, and a floating point adder. The floating point multiplier and the floating point adder are disposed between the crossbar operand multiplxor and the product-terms and summation buses, and are in parallel to each other. The invention also provides the configuration register and the command register in order to provide flexible architecture and the capability to fine-tune the performance to a particular application. The invention performs the multiplication operation and the addition operation in a pipelined fashion. Once the pipeline is filled, the invention outputs one multiplication output and one addition output at each clock cycle.
    Type: Application
    Filed: April 24, 2002
    Publication date: October 30, 2003
    Inventors: Jason Seung-Min Kim, Robert Quan