Patents by Inventor Kristof Denolf

Kristof Denolf 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: 11954359
    Abstract: A circular buffer architecture includes a memory coupled to a producer circuit and a consumer circuit. The memory is configured to store objects. The memory can include memory banks. The number of the memory banks is less than a number of the objects. The circular buffer can include hardware locks configured to reserve selected ones of the memory banks for use by the producer circuit or the consumer circuit. The circular buffer can include a buffer controller coupled to the memory and configured to track a plurality of positions. The positions can include a consumer bank position, a consumer object position, a producer bank position, and a producer object position. The buffer controller is configured to allocate selected ones of the objects from the memory banks to the producer circuit and to the consumer circuit according to the tracked positions and using the hardware locks.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: April 9, 2024
    Assignee: Xilinx, Inc.
    Inventors: Kristof Denolf, Jack S. Lo, Louis Coulon, Kornelis A. Vissers
  • Publication number: 20230205452
    Abstract: A circular buffer architecture includes a memory coupled to a producer circuit and a consumer circuit. The memory is configured to store objects. The memory can include memory banks. The number of the memory banks is less than a number of the objects. The circular buffer can include hardware locks configured to reserve selected ones of the memory banks for use by the producer circuit or the consumer circuit. The circular buffer can include a buffer controller coupled to the memory and configured to track a plurality of positions. The positions can include a consumer bank position, a consumer object position, a producer bank position, and a producer object position. The buffer controller is configured to allocate selected ones of the objects from the memory banks to the producer circuit and to the consumer circuit according to the tracked positions and using the hardware locks.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 29, 2023
    Applicant: Xilinx, Inc.
    Inventors: Kristof Denolf, Jack S. Lo, Louis Coulon, Kornelis A. Vissers
  • Patent number: 11676004
    Abstract: An example a method of optimizing a neural network having a plurality of layers includes: obtaining an architecture constraint for circuitry of an inference platform that implements the neural network; training the neural network on a training platform to generate network parameters and feature maps for the plurality of layers; and constraining the network parameters, the feature maps, or both based on the architecture constraint.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: June 13, 2023
    Assignee: XILINX, INC.
    Inventors: Kristof Denolf, Kornelis A. Vissers
  • Patent number: 11327677
    Abstract: An integrated circuit (IC) can include a decomposer data mover circuit configured to read sub-arrays from array data stored in a source memory; generate metadata headers for the sub-arrays, wherein each metadata header includes location information indicating location of a corresponding sub-array within the array data; create data tiles, wherein each data tile includes a sub-array and a corresponding metadata header; and output the data tiles to compute circuitry within the IC. The IC can include a composer data mover circuit configured to receive processed versions of the data tiles from the compute circuitry; extract valid data regions from the processed versions of the data tiles; and write the valid data regions to a destination memory based on the location information from the metadata headers of the processed versions of the data tiles.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 10, 2022
    Assignee: Xilinx, Inc.
    Inventors: Kristof Denolf, Jack S. Lo, Kornelis A. Vissers
  • Publication number: 20200401882
    Abstract: An example method of training a neural network includes defining hardware building blocks (HBBs), neuron equivalents (NEQs), and conversion procedures from NEQs to HBBs; defining the neural network using the NEQs in a machine learning framework; training the neural network on a training platform; and converting the neural network as trained into a netlist of HBBs using the conversion procedures to convert the NEQs in the neural network to the HBBs of the netlist.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 24, 2020
    Applicant: Xilinx, Inc.
    Inventors: Yaman Umuroglu, Nicholas Fraser, Michaela Blott, Kristof Denolf, Kornelis A. Vissers
  • Publication number: 20200104715
    Abstract: An example method of implementing a neural network includes selecting a first neural network architecture from a search space and training the neural network having the first neural network architecture to obtain an accuracy and an implementation cost. The implementation cost is based on a programmable device of an inference platform. The method further includes selecting a second neural network architecture from the search space based on the accuracy and the implementation cost, and outputting weights and hyperparameters for the neural network having the second neural network architecture.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Applicant: Xilinx, Inc.
    Inventors: Kristof Denolf, Nicholas Fraser, Kornelis A. Vissers, Giulio Gambardella
  • Publication number: 20190057305
    Abstract: An example a method of optimizing a neural network having a plurality of layers includes: obtaining an architecture constraint for circuitry of an inference platform that implements the neural network; training the neural network on a training platform to generate network parameters and feature maps for the plurality of layers; and constraining the network parameters, the feature maps, or both based on the architecture constraint.
    Type: Application
    Filed: August 15, 2017
    Publication date: February 21, 2019
    Applicant: Xilinx, Inc.
    Inventors: Kristof Denolf, Kornelis A. Vissers
  • Patent number: 8594186
    Abstract: Digital signal processing and, more particularly, digital video coding is described. Video encoding or decoding of frames includes accessing a plurality of values that can include at least one quantized DC default value and a plurality of quantized DC block values for neighboring blocks with respect to an intra block. A direction of change for the intra block is determined using predictor values obtained from the accessed values.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: November 26, 2013
    Assignee: Xilinx, Inc.
    Inventor: Kristof Denolf
  • Patent number: 8275047
    Abstract: Methods and devices for encoding and decoding video data are provided, wherein an image data structure can be represented as a group of macroblocks and each macroblock contains a plurality of blocks. One inventive aspect includes a method of decoding image data comprises decoding a current block of data, comprising retrieving a related reference block, decoding texture information of the current block, and reconstructing the current block, prior to the decoding of another block of data.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: September 25, 2012
    Assignee: Xilinx, Inc.
    Inventor: Kristof Denolf
  • Publication number: 20030152149
    Abstract: Methods and devices for encoding and decoding video data are provided, wherein an image data structure can be represented as a group of macroblocks and each macroblock contains a plurality of blocks. One aspect of the invention includes a method of decoding image data comprises decoding a current block of data, comprising retrieving a related reference block, decoding texture information of the current block, and reconstructing the current block, prior to the decoding of another block of data.
    Type: Application
    Filed: September 19, 2002
    Publication date: August 14, 2003
    Applicant: IMEC, vzw of Leuven, Belgium
    Inventor: Kristof Denolf