Patents Assigned to Xilinx, Inc.
  • Patent number: 11580057
    Abstract: An integrated circuit (IC) can include a processor system configured to execute program code, a programmable logic, and a platform management controller coupled to the processor system and the programmable logic. The platform management controller is adapted to configure and control the processor system and the programmable logic independently.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: February 14, 2023
    Assignee: Xilinx, Inc.
    Inventors: Ahmad R. Ansari, Sagheer Ahmad
  • Patent number: 11580191
    Abstract: Method and system relating generally to convolution is disclosed. In such a method, an image patch is selected from input data for a first channel of a plurality of input channels of an input layer. The selected image patch is transformed to obtain a transformed image patch. The transformed image patch is stored. Stored is a plurality of predetermined transformed filter kernels. A stored transformed filter kernel of the plurality of stored predetermined transformed filter kernels is element-wise multiplied by multipliers with the stored transformed image patch for a second channel of the plurality of input channels different from the first channel to obtain a product. The product is inverse transformed to obtain a filtered patch for the image patch.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: February 14, 2023
    Assignee: XILINX, INC.
    Inventors: Albert T. Gural, Michael Wu, Christopher H. Dick
  • Patent number: 11581888
    Abstract: A power-on reset circuit with reduced detection time. One example power-on reset circuit generally includes a voltage sensing circuit having an input coupled to a first power supply rail; a variable resistance component having a control input coupled to an output of the voltage sensing circuit and having a first terminal coupled to the first power supply rail; and an amplitude detection circuit having a first input coupled to the first power supply rail and having a second input coupled to a second terminal of the variable resistance component, the amplitude detection circuit being configured to generate a power-on reset signal at an output of the amplitude detection circuit based on a difference between a first voltage of the first power supply rail and a second voltage at the second terminal of the variable resistance component.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: February 14, 2023
    Assignee: XILINX, INC.
    Inventor: Hari Bilash Dubey
  • Patent number: 11581881
    Abstract: An integrated circuit (IC) for clock and phase aligning and synchronization between physical (PHY) layers and a communications controller is provided. The IC includes a clock multiplier configured to multiply a frequency of the clock signal from a plurality of PHY layers to match a frequency of a clock signal of the controller, wherein the clock signal from the plurality of PHY layers is less than the frequency of the clock signal of the controller. IC support circuitry is configured to provide the multiplied clock signal to the controller. The IC includes a first clock divider configured to divide the frequency of the multiplied clock signal and to output the divided clock signal to the controller. The IC includes a phase alignment circuit configured to align phases of one or more data signals based on a phase of the clock signal and a phase of the multiplied clock signal.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: February 14, 2023
    Assignee: XILINX, INC.
    Inventors: Sarosh I. Azad, Benson Chau, Tomai Knopp
  • Patent number: 11579957
    Abstract: A system includes a plurality of watchdog components. Each watchdog component is configured to receive a kick signal from its monitored function to determine whether the monitored function is active. Each watchdog component is further configured to receive a respective token from all watchdog components that the each watchdog component is connected to. The respective token determines whether its respective watchdog component has timed out. Each watchdog component is further configured to generate a token responsive to the kick signal and further responsive to the respective token from all watchdog component that the each watchdog component is connected to. Each watchdog component is further configured to transmit the generated token to the all watchdog components that the each watchdog component is connected to.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: February 14, 2023
    Assignee: XILINX, INC.
    Inventors: Edward S. Peterson, Trevor W. Hardcastle, Carl H. Carmichael
  • Patent number: 11582021
    Abstract: Disclosed approaches for validating initialization vectors determining by a configuration control circuit whether or not an input initialization vector is within a range of valid initialization vectors. In response to determining that the initialization vector is within the range of valid initialization vectors, the configuration control circuit decrypts the ciphertext into plaintext using the input initialization vector and configures a memory circuit with the plaintext. In response to determining that the first initialization vector is outside the range of valid initialization vectors, the configuration control circuit signals that the first initialization vector is invalid.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: February 14, 2023
    Assignee: XILINX, INC.
    Inventors: James D. Wesselkamper, Nathan A. Menhorn, Jason J. Moore
  • Publication number: 20230044581
    Abstract: Learning-based power modeling of a processor core includes generating, using computer hardware, pipeline snapshot data specifying a plurality of snapshots for a pipeline of a processor core. Each snapshot specifies a state of the pipeline for a clock cycle in executing a computer program over a plurality of clock cycles. A plurality of estimates of power consumption for the processor core in executing the computer program for the plurality of clock cycles are determined, using an instruction-based power model executed by the computer hardware, a based on the pipeline snapshot data. The plurality of estimates of power consumption are calculated using the instruction-based power model based on the plurality of snapshots over the plurality of clock cycles.
    Type: Application
    Filed: August 5, 2021
    Publication date: February 9, 2023
    Applicant: Xilinx, Inc.
    Inventors: Tim Tuan, Seokjoong Kim, Sai Anirudh Jayanthi
  • Patent number: 11573726
    Abstract: A device may include a plurality of data processing engines. Each of the data processing engines may include a memory pool having a plurality of memory banks, a plurality of cores each coupled to the memory pool and configured to access the plurality of memory banks, a memory mapped switch coupled to the memory pool and a memory mapped switch of at least one neighboring data processing engine, and a stream switch coupled to each of the plurality of cores and to a stream switch of the at least one neighboring data processing engine.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: February 7, 2023
    Assignee: Xilinx, Inc.
    Inventors: Juan J. Noguera Serra, Goran H K Bilski, Jan Langer, Baris Ozgul, Richard L. Walke, Ralph D. Wittig, Kornelis A. Vissers, Christopher H. Dick, Philip B. James-Roxby
  • Patent number: 11575497
    Abstract: In one example, receiver circuitry for a communication system comprises signal processing circuitry configured to receive a data signal and generate a processed data signal, and error slicer circuitry. The error slicer circuitry is coupled to the output of the signal processing circuitry, and configured to receive the processed data signal. The error slicer circuitry comprises a first error slicer configured to receive a clock signal, and output a first error signal based on a first state of the clock signal and processed data signal. The first error slicer is further configured to output a second error signal based on a second state of the clock signal and the processed data signal.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: February 7, 2023
    Assignee: XILINX, INC.
    Inventors: Wenfeng Zhang, Zhaoyin Daniel Wu, Parag Upadhyaya
  • Publication number: 20230036531
    Abstract: Some examples described herein provide a buffer memory pool circuitry that comprises a plurality of buffer memory circuits that store an entry identifier, a payload portion, and a next-entry pointer. The buffer memory pool circuitry further comprises a processor configured to identify an allocation request for a first virtual channel associated with a sequence of buffer memory circuits and comprising a start pointer identifying an initial buffer memory circuit. The processor is further configured to program the first virtual channel circuit based on setting the start pointer for the first virtual channel circuit to be equal to the entry identifier of the initial buffer memory circuit. The processor is also configured to monitor usage. A length of the sequence of buffer memory circuits of the first virtual channel circuit is defined by a start pointer for a second virtual channel circuit subsequent to the first virtual channel circuit.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 2, 2023
    Applicant: XILINX, INC.
    Inventors: Krishnan SRINIVASAN, Shishir KUMAR, Sagheer AHMAD, Abbas MORSHED, Aman GUPTA
  • Publication number: 20230034736
    Abstract: Processing a circuit design includes stabilizing the circuit design by a design tool that performs one or more iterations of implementation, optimization assessment, optimization, and stability assessment until a threshold stability level is achieved. The design tool determines, in response to satisfaction of the threshold stability level, different strategies based on features of the circuit design and likelihood that use of the strategies would improve timing. Each strategy includes parameter settings for the design tool. The design tool executes multiple implementation flows using different sets of strategies to generate alternative implementations. One implementation of the alternative implementations nearest to satisfying a timing requirement is selected.
    Type: Application
    Filed: July 22, 2021
    Publication date: February 2, 2023
    Applicant: Xilinx, Inc.
    Inventors: Veeresh Pratap Singh, Meghraj Kalase, John Blaine, Srinivasan Dasasathyan, Padmini Gopalakrishnan, Frederic Revenu, Veena Johar, Pawan Kumar Singh, Mohit Sharma, Kameshwar Chandrasekar
  • Publication number: 20230032302
    Abstract: Inter-kernel dataflow analysis and deadlock detection includes, for each kernel of a plurality of kernels of a design, including, using computer hardware, a signal for the kernel that is asserted in response to all processes inside the kernel stalling, wherein the plurality of kernels form a strongly connected component. For each kernel of the plurality of kernels, the signal is asserted during operation of the design in response to each process in the kernel stalling. A notification is generated indicating that the strongly connected component is deadlocked in response to each kernel of the strongly connected component asserting the signal.
    Type: Application
    Filed: July 26, 2021
    Publication date: February 2, 2023
    Applicant: Xilinx, Inc.
    Inventors: Luciano Lavagno, Xin Jin, Dan Liu, Thomas Bollaert, Hem C. Neema, Chaosheng Shi
  • Patent number: 11570045
    Abstract: A network interface device comprises a plurality of components configured to process a flow of data one after another. A control component is configured to provide one or more control messages in said flow, said one or more control message being provided to said plurality of components one after another such that a configuration of one or more of said components is changed.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 31, 2023
    Assignee: Xilinx, Inc.
    Inventors: Steven Leslie Pope, David James Riddoch
  • Patent number: 11568218
    Abstract: A disclosed neural network processing system includes a host computer system, a RAMs coupled to the host computer system, and neural network accelerators coupled to the RAMs, respectively. The host computer system is configured with software that when executed causes the host computer system to write input data and work requests to the RAMS. Each work request specifies a subset of neural network operations to perform and memory locations in a RAM of the input data and parameters. A graph of dependencies among neural network operations is built and additional dependencies added. The operations are partitioned into coarse grain tasks and fine grain subtasks for optimal scheduling for parallel execution. The subtasks are scheduled to accelerator kernels of matching capabilities. Each neural network accelerator is configured to read a work request from the respective RAM and perform the subset of neural network operations on the input data using the parameters.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: January 31, 2023
    Assignee: XILINX, INC.
    Inventors: Aaron Ng, Jindrich Zejda, Elliott Delaye, Xiao Teng, Ashish Sirasao
  • Patent number: 11567881
    Abstract: A device may include an array of data processing engines (DPEs) on a die and an event broadcast network. Each of the DPEs includes a core, a memory module, event logic in at least one of the core or the memory module, and an event broadcast circuitry coupled to the event logic. The event logic is capable of detecting an occurrence of one or more events in the core or the memory module. The event broadcast circuitry is capable of receiving an indication of a detected event detected by the event logic. The event broadcast network includes interconnections between the event broadcast circuitry of the DPEs. Detected events can trigger or initiate various responses, such as debugging, tracing, and profiling.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: January 31, 2023
    Assignee: XILINX, INC.
    Inventors: Goran H. K. Bilski, David Clarke, Baris Ozgul, Jan Langer, Juan J. Noguera Serra
  • Patent number: 11569820
    Abstract: An example programmable device includes a configuration memory configured to store configuration data; a programmable logic having a configurable functionality based on the configuration data in the configuration memory; a signal conversion circuit; a digital processing circuit; an endpoint circuit coupled to the signal conversion circuit through the digital processing circuit; wherein the digital processing circuit includes a first one or more digital processing functions implemented as hardened circuits each having a predetermined functionality, and a second one or more processing functions implemented by the configurable functionality of the programmable logic.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: January 31, 2023
    Assignee: XILINX, INC.
    Inventors: John Edward McGrath, Woon Wong, John O'Dwyer, Paul Newson, Brendan Farley
  • Publication number: 20230023614
    Abstract: First and second sensing circuits are coupled to first and second data lines, respectively, and sense levels of current leakage or a memory cell state on the first and second data lines. First and second keeper circuits are coupled to the first and second data lines, respectively, and drive the first and second data lines by a voltage supply through biased transistors. First and second leakage latches are coupled to receive and latch state of signals output from the first and second sensing circuits, respectively. A control circuit is coupled to the first leakage latch, second leakage latch, and outputs of the first and second sensing circuits. The control circuit is configured to select either the signal output from the first sensing circuit or the signal output from the second sensing circuit in response to states of the first and second leakage latches.
    Type: Application
    Filed: July 26, 2021
    Publication date: January 26, 2023
    Applicant: Xilinx, Inc.
    Inventors: Michael Tsivyan, Shidong Zhou, Karthy Rajasekharan, Weiguang Lu, Jing Jing Chen, Mehul Vashi
  • Patent number: 11561779
    Abstract: An example method of implementing an application for a hardware accelerator having a programmable device coupled to memory is disclosed.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: January 24, 2023
    Assignee: XILINX, INC.
    Inventor: Julian M. Kain
  • Patent number: 11563453
    Abstract: A transmitter for a communication system comprises a digital pre-distortion (DPD) circuit and adaptation circuitry. The DPD circuit is configured to generate a digital intermediate signal by compensating an input signal for distortions resulting from an amplifier. The amplifier is configured to output an output signal based on the digital intermediate signal. The DPD circuit includes one or more an infinite impulse response (IIR) filters configured to implement a first transfer function based on a first parameter, and a second transfer function based on the first parameter and a time constant. The DPD circuit is configured to generate an adjustment signal based on the first transfer function and the second transfer function. The adaptation circuitry is configured to update the first parameter based on the adjustment signal, the input signal, and the output signal.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: January 24, 2023
    Assignee: XILINX, INC.
    Inventors: Hongzhi Zhao, Vincent C. Barnes, Xiaohan Chen, Hemang M. Parekh
  • Patent number: 11561826
    Abstract: Scheduling work of a machine learning application includes instantiating kernel objects by a computer processor in response to input of kernel definitions. Each kernel object is of a kernel type indicating a compute circuit. The computer processor generates a graph in a memory. Each node represents a task and specifies an assignment of the task to one or more of the kernel objects, and each edge represents a data dependency. Task queues are created in the memory and assigned to queue tasks represented by the nodes. Kernel objects are assigned to the task queues, and the tasks are enqueued by threads executing the kernel objects, based on assignments of the kernel objects to the task queues and assignments of the tasks to the kernel objects. Tasks are dequeued by the threads, and the compute circuits are activated to initiate processing of the dequeued tasks.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: January 24, 2023
    Assignee: XILINX, INC.
    Inventors: Sumit Nagpal, Abid Karumannil, Vishal Jain, Arun Kumar Patil