Patents Assigned to Xilinx, Inc.
  • Publication number: 20200264901
    Abstract: Examples described herein provide for an integrated circuit (IC) having a programmable logic region that is capable of being configured via a programmable network. In an example, an IC includes a programmable logic region, a controller, and a programmable network. The programmable network is connected between the controller and the programmable logic region. The controller is programmed to configure the programmable logic region via the programmable network. In some examples, the programmable logic region can be configured faster, among other benefits.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Applicant: Xilinx, Inc.
    Inventors: Rafael C. Camarota, David P. Schultz
  • Patent number: 10749729
    Abstract: A circuit includes an AGC adaptation circuit configured to receive a first signal generated based on an AGC output signal from an AGC circuit. The AGC circuit applies an AGC gain to an AGC input signal to generate the AGC output signal. The AGC adaptation circuit determines an observed value of the first signal, and determines a AGC adaptation step size based on the observed value and a predetermined target value associated with the first signal. The AGC adaptation circuit provides a second signal to adjust the AGC gain of the AGC circuit using the AGC adaptation step size.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 18, 2020
    Assignee: Xilinx, Inc.
    Inventors: Alan C. Wong, Hong Sik Ahn, Edward Lee, Christopher J. Borrelli
  • Patent number: 10747690
    Abstract: A device may include a plurality of data processing engines. Each data processing engine may include a core and a memory module. Each core may be configured to access the memory module in the same data processing engine and a memory module within at least one other data processing engine of the plurality of data processing engines.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 18, 2020
    Assignee: Xilinx, Inc.
    Inventors: Goran H K Bilski, Juan J. Noguera Serra, Baris Ozgul, Jan Langer, Richard L. Walke, Ralph D. Wittig, Kornelis A. Vissers, Philip B. James-Roxby, Christopher H. Dick
  • Patent number: 10747516
    Abstract: An example method of implementing an application for a hardware accelerator having a programmable device coupled to memory is disclosed.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 18, 2020
    Assignee: XILINX, INC.
    Inventor: Julian M. Kain
  • Patent number: 10747534
    Abstract: The embodiments herein describe techniques for monitoring guard bits in multi-result vectors generated by a first arithmetic unit in a chain and using side band logic to add or subtract offset values from guard bits in a second, subsequent arithmetic unit in the chain. In this manner, the guard bits can be adjusted on the fly (e.g., without interrupting or terminating the chain) to ensure the guard bits do not overflow. The side band logic can maintain a guard bits overflow value which is then combined with the output vector from the final arithmetic unit in the chain to compensate for adjusting the guard bits at the various arithmetic units in the chain. In this manner, the chain can have any desired length.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: August 18, 2020
    Assignee: XILINX, INC.
    Inventors: Thomas B. Preusser, Thomas A. Branca
  • Patent number: 10747531
    Abstract: An example core for a data processing engine (DPE) includes a register file, a processor, coupled to the register file. The processor includes a multiply-accumulate (MAC) circuit, and permute circuitry coupled between the register file and the MAC circuit, the permute circuitry configured to concatenate at least one pair of outputs of the register file to provide at least one input to the MAC circuit. The core further includes an instruction decoder, coupled to the processor, configured to decode a very large instruction word (VLIW) to set a plurality of parameters of the processor, the plurality of parameters including first parameters of the permute circuitry and second parameters of the MAC circuit.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 18, 2020
    Assignee: XILINX, INC.
    Inventors: Jan Langer, Baris Ozgul, Juan J. Noguera Serra, Goran HK Bilski, Tim Tuan
  • Patent number: 10749532
    Abstract: A phase locked loop (PLL) circuit includes a voltage controlled oscillator (VCO), a first loop circuit, and a second loop circuit. The first loop circuit includes a first loop filter configured to receive a first signal based on a feedback signal from the VCO and provide a first VCO frequency control signal to the VCO. The second loop circuit includes a compensation circuit configured to receive a reference signal and the first signal, and provide a second VCO frequency control signal to the VCO.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 18, 2020
    Assignee: Xilinx, Inc.
    Inventors: Mayank Raj, Didem Z. Turker Melek, Parag Upadhyaya, Yohan Frans, Kun-Yung Chang
  • Patent number: 10747502
    Abstract: Circuits and method for multiplying floating point operands. An exponent adder circuit sums a first exponent and a second exponent and generates an output exponent. A mantissa multiplier circuit multiplies a first mantissa and a second mantissa and generates an output mantissa. A first conversion circuit converts the output exponent and output mantissa into a fixed point number. An accumulator circuit sums contents of an accumulation register and the fixed point number into an accumulated value and stores the accumulated value in the accumulation register.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 18, 2020
    Assignee: Xilinx, Inc.
    Inventors: Satyaprakash Pareek, Anup Hosangadi, Bing Tian, Ashish Sirasao, Yao Fu, Oscar Fernando C. Fernandez, Michael Wu, Christopher H. Dick
  • Patent number: 10747929
    Abstract: A circuit design tool places a circuit design, and after placing detects a hold violation of a path between a first flip-flop on a first IC die and a second flip-flop on a second IC die. The circuit design tool selects a window size based on an amount of the hold violation and determines an alternative path having a delay that resolves the hold violation. The alternative path is restricted to resources within an area of the window size on the second IC die. The circuit design tool replicates a plurality of instances of the alternative path in a plurality of areas of the second IC die and then routes the circuit design using the plurality of instances of the alternative path.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 18, 2020
    Assignee: Xilinx, Inc.
    Inventors: Henri Fraisse, Dinesh D. Gaitonde, Chirag Ravishankar
  • Patent number: 10742453
    Abstract: An equalizer circuit including a filter, equalization circuitry, and a filter adaptation circuit. The filter is configured to produce a linearized signal based at least in part on a received input signal and a nonlinear transfer function. The equalization circuitry is configured to filter inter-symbol interference (ISI) and detect one or more data symbols in the linearized signal. The equalization circuitry is further configured to produce an error signal indicating an amount of error in the detected data symbols. The filter adaptation circuit is configured to dynamically adjust the nonlinear transfer function of the filter based at least in part on the error signal from the equalization circuitry.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventors: Min Wu, Hongtao Zhang, Yu Xu
  • Patent number: 10740210
    Abstract: Tracing operation of a kernel can include comparing, using a processor, signals of a compiled kernel with a database including compiler generated signals for compute units to determine a list of the signals of the compiled kernel that match the compiler generated signals and generating trace data by emulating the compiled kernel using the processor. The trace data includes values for signals of the compiled kernel collected over time during the emulation. Operational data corresponding to individual compute units of the compiled kernel can be determined from values of the signals of the list within the trace data using the processor. The operational data can be displayed using the processor.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventors: Paul R. Schumacher, Kumar Deepak, Roger Ng, David K. Liddell
  • Patent number: 10740523
    Abstract: A programmable logic device includes an integrated circuit die having a programmable fabric region including N identical programmable logic partitions. In some embodiments, N?1 of the identical programmable logic partitions are user-programmable. In addition, and in some cases, one of the identical programmable logic partitions is a spare logic partition. In some embodiments, the integrated circuit die further includes a network-on-a-chip (NOC) including a vertical NOC (VNOC) and a horizontal NOC (HNOC). By way of example, the N identical programmable logic partitions are configured to communicate exclusively through the NOC. In some embodiments, a defective one of the N?1 identical programmable logic partitions is configured for swapping with the spare logic partition.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventor: Matthew H. Klein
  • Patent number: 10740529
    Abstract: Circuit designs and/or circuitry for integrated circuits (ICs) can be generated for radio-frequency (RF) applications by determining, using computer hardware, a value of a parameter of a super-sampling rate (SSR) block within a model of a circuit, wherein the value indicates a number of a plurality of data channels of the SSR block, automatically creating, using the computer hardware, a primary input port and a primary output port for the SSR block based on functionality of the SSR block, wherein vector size of the primary input port and the primary output port is determined from the value of the parameter, automatically creating, using the computer hardware, a plurality of scalar instances of the SSR block based on the value of the parameter, wherein the plurality of scalar instances are arranged in parallel, and configuring, using the computer hardware, each scalar instance of the plurality of scalar instances based on a parameterization of the SSR block.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventors: Avinash Somalinga Suresh, Narendra Kumar Anumolu
  • Patent number: 10740146
    Abstract: Embodiments herein describe techniques for executing VMs on hosts that include an accelerator. The hosts can use the accelerators to perform specialized tasks such as floating-point arithmetic, encryption, image processing, etc. Moreover, VMs can be migrated between hosts. To do so, the state of the processor is saved on the current host thereby saving the state of the VM. For example, by saving the processor state, once the data corresponding to the VM is loaded into a destination host, the processor can be initialized to the saved state in order to resume the VM. In addition to saving the processor state, the embodiments herein save the state of the accelerator on a FPGA. That is, unlike previous systems where tasks executed by the accelerator are discarded when migrating the VM, the state of the accelerator can be saved and used to initialize an FPGA accelerator in the destination host.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: August 11, 2020
    Assignee: XILINX, INC.
    Inventor: Sundararajarao Mohan
  • Patent number: 10742604
    Abstract: A logic device and method are provided for intercepting a data flow from a network source to a network destination. A data store holds a set of compliance rules and corresponding actions. A packet inspector is configured to inspect the intercepted data flow and identify from the data store a compliance rule associated with the inspected data flow. A packet filter is configured to, when the data flow is identified as being associated with a compliance rule, carry out an action with respect to the data flow corresponding to the compliance rule.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventors: Steve L. Pope, Derek Roberts, David J. Riddoch
  • Patent number: 10742254
    Abstract: A leakage compensation circuit includes a compensation digital to analog converter (DAC) and an adjustment circuit. The compensation DAC is configured to: receive a first digital signal associated with a transmitter of a transceiver; generate a compensation analog signal using the first digital signal; and provide the compensation analog signal to a receiver of the transceiver. The adjustment circuit is configured to generate the first digital signal by adjusting a second digital signal from the transmitter based on one or more adjustment parameters.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventor: Adrian Lynam
  • Patent number: 10741524
    Abstract: Examples herein describe techniques for forming 3D stacked devices which include a redundant logical layer. The 3D stacked devices include a plurality of semiconductor chips stacked in a vertical direction such that each chip is bonded to a chip above, below, or both in the stack. In one embodiment, each chip is the same—e.g., has the same circuitry arranged in the same configuration in the chip. The 3D stacked device provides a redundant logic layer by dividing the chips into a plurality of slivers which are interconnected by inter-chip bridges. For example, the 3D stacked device may include three stacked chips that are divided into three different slivers where each sliver includes a portion from each of the chips. So long as only one of portions in a sliver is nonfunctional, the inter-chip bridges permit the other portions in the sliver to receive and route data.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: August 11, 2020
    Assignee: XILINX, INC.
    Inventors: Brian C. Gaide, Matthew H. Klein
  • Patent number: 10742782
    Abstract: A network interface device is provided. The network interface device comprises an input configured to receive a data frame from a network. The network interface device also comprises a timing component configured to store, for the data frame, first timing information and compensation information. The compensation information is specific to the frame. The first timing information and said compensation information representing a time when the data frame was received.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: August 11, 2020
    Assignee: XILINX, INC.
    Inventors: Steven L. Pope, Derek Roberts, Neil Turton
  • Patent number: 10733167
    Abstract: A system has data capture devices collecting data from different points in a network. The captured data is written to a data store and is directed to an output. The data from the different data capture devices can be delivered to a data analytics device. As long as the data analytics device is able to keep pace with the data that is directed to the output, that data is used by the analytics device. If the analytics device is not able to keep pace, the data written to the data store is retrieved and is used until the analytics device has caught up.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: August 4, 2020
    Assignee: XILINX, INC.
    Inventors: Steven L. Pope, David J. Riddoch, Matthew Knight
  • Patent number: 10732943
    Abstract: The disclosure provides a compilation method and system for heterogeneous computing platform, and a runtime method and system for supporting program execution on the heterogeneous computing platform. Inputting a trained neural network model to a Neural Network (NN) optimizing compiler to generate an NN assembly file corresponding to the neural network; inputting the NN assembly file to an NN assembler to generate an NN binary file corresponding to the neural network; compilation and assembling a neural network application developed by users in a high-level language using a host compiler toolchain to generate a corresponding host assembly file and a host binary file in sequence; and linking the NN binary file and the host binary file using a host linker to generate a single hybrid linking executable file. The technical solution of the present disclosure has the advantages such as good computing performance, strong scalability, strong compatibility and high flexibility.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: August 4, 2020
    Assignee: XILINX, INC.
    Inventors: Xiaoming Sun, Lingzhi Sui, Hong Luo, Yi Shan, Song Yao