Patents Assigned to Altera Corporation
  • Publication number: 20260243845
    Abstract: A test power-on-reset detector circuit includes a trip-out detector circuit that generates a trip-out signal indicative of a supply voltage increasing above a trip-out level and a trip-in detector circuit that generates a trip-in signal indicative of the supply voltage decreasing below a trip-in level that is less than the trip-out level. The test power-on-reset detector circuit includes a latch circuit that stores values of the trip-out signal and of the trip-in signal to generate a power-on-reset signal during a test of an integrated circuit to control functional power-on-reset signals. A bandgap reference voltage detector circuit includes an amplifier circuit that amplifies a difference between voltages as offset by a first voltage skew to control a current that affects the voltages. A comparator circuit compares the voltages as offset by a second voltage skew to generate a voltage that indicates when a bandgap reference voltage is stable.
    Type: Application
    Filed: February 18, 2025
    Publication date: August 20, 2026
    Applicant: Altera Corporation
    Inventors: Maneesha Yellepeddi, Kalyana Kantipudi, Ping Xiao, Ching Sia Lim, Sermalingam Chandrasekaran, Ahmad Samhan Mohamed Aslam
  • Publication number: 20260246456
    Abstract: An integrated circuit includes a multiplexer circuit coupled to receive a first clock signal and a second clock signal. The multiplexer circuit is coupled to provide an output clock signal to a channel in an external device. The channel is coupled to the integrated circuit through a connection external to the integrated circuit. A protection circuit is coupled to receive a feedback signal from the channel through the connection. The protection circuit causes the multiplexer circuit to provide first oscillations in the first clock signal to the channel in the output clock signal in response to the feedback signal indicating that the channel is active. The protection circuit causes the multiplexer circuit to provide second oscillations in the second clock signal to the channel in the output clock signal in response to the feedback signal indicating that the channel has been idle for a period of time.
    Type: Application
    Filed: April 9, 2026
    Publication date: August 20, 2026
    Applicant: Altera Corporation
    Inventors: Han Hua Leong, Sze Ming Chow, David Mendel, Jia Yong Chang, Ryan Caldwell
  • Patent number: 12712548
    Abstract: An integrated circuit device that includes programmable logic circuitry that includes a plurality of regions each configured to operate at different voltage levels. The regions may be separated by level shifters that enable communication between the different voltage level regions. The integrated circuitry may also include software that performs voltage aware placement and routing for a user register-transfer level design, and may direct logic to regions according to voltages defined for the regions.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: August 18, 2026
    Assignee: Altera Corporation
    Inventors: Mahesh K. Kumashikar, Ankireddy Nalamalpu, Md Altaf Hossain, Atul Maheshwari, Yuet Li, Mahesh A. Iyer
  • Patent number: 12712646
    Abstract: Examples described herein relate to a physical layer interface (PHY) that includes circuitry configured to autonomously measure for signal degradation by a baseline measurement of parameters and one or more subsequent measurements of parameters to indicate if link loss is expected.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: August 18, 2026
    Assignee: Altera Corporation
    Inventors: Andrew K. Lillie, Itamar Levin, Amir Laufer
  • Patent number: 12710923
    Abstract: Configurable specialized processing blocks, such as DSP blocks, are described that implement fixed and floating-point functionality in a single mixed architecture on a programmable device. The described architecture reduces the need to construct floating-point functions outside the configurable specialized processing block, thereby minimizing hardware cost and area. The disclosed architecture also introduces pipelining into the DSP block in order to ensure the floating-point multiplication and addition functions remain in synchronicity, thereby increasing the maximum frequency at which the DSP block can operate. Moreover, the disclosed architecture includes logic circuitry to support floating-point exception handling.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: August 18, 2026
    Assignee: Altera Corporation
    Inventors: Keone Streicher, Martin Langhammer, Yi-Wen Lin, Hyun Yi
  • Patent number: 12711293
    Abstract: A computer system is provided for protecting a circuit design for an application specific integrated circuit. The computer system includes a logic circuit replacement tool for identifying a module of logic circuitry for replacement in at least a portion of the circuit design. The logic circuit replacement tool generates a transformed circuit design for the application specific integrated circuit by replacing the logic circuitry in the module with a configurable circuit that performs a logic function of the logic circuitry when a bitstream stored in storage circuits in the configurable circuit configures the configurable circuit. The transformed circuit design includes the configurable circuit in the module.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: August 18, 2026
    Assignee: Altera Corporation
    Inventors: David Kehlet, Nij Dorairaj
  • Patent number: 12705023
    Abstract: An integrated circuit with specialized processing blocks is provided. A specialized processing block may be optimized for machine learning algorithms and may include a multiplier data path that feeds an adder data path. The multiplier data path may be decomposed into multiple partial product generators, multiple compressors, and multiple carry-propagate adders of a first precision. Results from the carry-propagate adders may be added using a floating-point adder of the first precision. Results from the floating-point adder may be optionally cast to a second precision that is higher or more accurate than the first precision. The adder data path may include an adder of the second precision that combines the results from the floating-point adder with zero, with a general-purpose input, or with other dot product terms. Operated in this way, the specialized processing block provides a technical improvement of greatly increasing the functional density for implementing machine learning algorithms.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: August 11, 2026
    Assignee: Altera Corporation
    Inventors: Martin Langhammer, Dongdong Chen, Kevin Hurd
  • Patent number: 12699587
    Abstract: A virtualization platform for Network Functions Virtualization (NFV) is provided. The virtualization platform may include a host processor coupled to an acceleration coprocessor. The acceleration coprocessor may be a reconfigurable integrated circuit to help provide improved flexibility and agility for the NFV. The coprocessor may include multiple virtual function hardware acceleration modules each of which is configured to perform a respective accelerator function. A virtual machine running on the host processor may wish to perform multiple accelerator functions in succession at the coprocessor on a given data. In one suitable arrangement, intermediate data output by each of the accelerator functions may be fed back to the host processor. In another suitable arrangement, the successive function calls may be chained together so that only the final resulting data is fed back to the host processor.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: August 4, 2026
    Assignee: Altera Corporation
    Inventors: Abdel Hafiz Rabi, Allen Chen, Mark Jonathan Lewis, Jiefan Zhang
  • Publication number: 20260220082
    Abstract: An integrated circuit system includes software-programmable vector processing circuitry having software-programmable vector processors arranged in processing nodes in an array. Each of the processing nodes is communicatively coupled to adjacent ones of the processing nodes in the array through a mesh router. Each of the software-programmable vector processors comprises processing elements. Each of the processing elements is capable of processing first data in a floating point data format. Each of the processing elements is capable of processing integer data. The processing elements comprise hardened circuits that are capable of executing instructions and providing processed data in response to the instructions.
    Type: Application
    Filed: March 27, 2026
    Publication date: July 30, 2026
    Applicant: Altera Corporation
    Inventors: David Shippy, Martin Langhammer, Jeffrey Eastlack
  • Patent number: 12694180
    Abstract: Systems or methods of the present disclosure may provide a compilation design method that uses cloud computing resources and/or distributed computing resources to compile initial user designs. The initial user design for the programmable logic device may be partitioned into multiple designs for compilation based on periphery logic and core fabric logic. The compilation design method implements partition-level time budgeting and constraint generation using full device timing analysis. The final placed and routed netlist and bitstream SOF is generated by merging the placed and routed netlist and bitstream SOF of individual partition designs.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: July 28, 2026
    Assignee: Altera Corporation
    Inventors: Yi Peng, Scott Jeremy Weber, Mahesh A. Iyer
  • Patent number: 12688021
    Abstract: Systems or methods of the present disclosure may provide a computing system that includes a processor and one or more implemented designs in one or more configurable circuits of a programmable logic fabric. The computing system also includes a memory coupled to the programmable logic fabric. The computing system further includes an accelerator that is located in-line between the one or more configurable circuits and the memory. The accelerator is defined using a low-level programming language. The processor is coupled to the accelerator and is configured to enable modification of the definition of the accelerator by converting a high-level programming language to the low-level programming language to change the way that the accelerator operates.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 21, 2026
    Assignee: Altera Corporation
    Inventor: Nij Dorairaj
  • Patent number: 12687871
    Abstract: An integrated circuit includes a diode for generating a temperature dependent voltage, a resistor divider for generating divided voltages by dividing the temperature dependent voltage, and a multiplexer circuit for selecting one of the divided voltages as a reference voltage used for setting a supply voltage.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: July 21, 2026
    Assignee: Altera Corporation
    Inventor: Ping-Chen Liu
  • Patent number: 12682221
    Abstract: A method for implementing an artificial neural network in a computing system that comprises performing a compute operation using an input activation and a weight to generate an output activation, and modifying the output activation using a noise value to increase activation sparsity.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: July 14, 2026
    Assignee: Altera Corporation
    Inventors: Nihat Tunali, Arnab Raha, Bogdan Pasca, Martin Langhammer, Michael Wu, Deepak Mathaikutty
  • Patent number: 12675229
    Abstract: Systems or methods of the present disclosure may provide a programmable fabric including programmable logic. The programmable logic may include memory, a network-on-chip (NOC), and at least one micro NOC formed with hardened resources in the programmable fabric. Further, the at least one micro NOC may be communicatively coupled to the NOC and to the programmable logic. Additionally, the at least one micro NOC may selectively route data between the NOC and the programmable logic.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: July 7, 2026
    Assignee: Altera Corporation
    Inventors: Bee Yee Ng, Ilya K. Ganusov, Scott Jeremy Weber
  • Patent number: 12672558
    Abstract: The present disclosure is directed generally to semiconductor packages, semiconductor package substrates, and methods for making them, which include packages substrates with embedded passive devices positioned between plated through hole vias configured for an improved power delivery network.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: June 30, 2026
    Assignee: Altera Corporation
    Inventors: Loke Yip Foo, Teong Guan Yew, Bok Eng Cheah
  • Patent number: 12665681
    Abstract: An integrated circuit includes a filter circuit and a computation circuit that applies emphasis to a data stream in a frequency domain to reduce distortion to the data stream caused by the filter circuit. The emphasis is determined based on the distortion caused by the filter circuit. A circuit design system includes logic synthesis and optimization tools that relax parameters for a first filter circuit to generate relaxed parameters, use the relaxed parameters to generate a second filter circuit that filters data, generate an emphasis vector based on distortion in the data caused by the second filter circuit, and generate a computation circuit that applies the emphasis vector to the data to reduce the distortion in the data caused by the second filter circuit.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: June 23, 2026
    Assignee: Altera Corporation
    Inventor: Volker Mauer
  • Patent number: 12664082
    Abstract: A method includes receiving, via a communication link and at a device of an integrated circuit system, a cache line comprising a destination address, determining, via the device, a type of memory or storage associated with the destination address, the type of memory or storage comprising persistent or non-persistent, and tagging the cache line with metadata in a manner indicating the type of memory or storage associated with the destination address.
    Type: Grant
    Filed: December 19, 2024
    Date of Patent: June 23, 2026
    Assignee: Altera Corporation
    Inventors: Sharath Raghava, Nagabhushan Chitlur, Harsha Gupta
  • Publication number: 20260169692
    Abstract: An integrated circuit includes a digital signal processing circuit. The digital signal processing circuit includes fixed point multiplier circuits, floating point multiplier circuits, and adder circuits. The digital signal processing circuit is configurable to implement a reduction of floating point multiplication operations based on floating point inputs to the digital signal processing circuit using the fixed point multiplier circuits, the floating point multiplier circuits, and the adder circuits.
    Type: Application
    Filed: December 16, 2024
    Publication date: June 18, 2026
    Applicant: Altera Corporation
    Inventors: Martin Langhammer, Ilya Ganusov, Dongdong Chen, Jason Bergendahl
  • Patent number: 12645853
    Abstract: A processing integrated circuit includes a processing core comprising hard logic circuits and a programmable interface circuit configurable to exchange signals between an external terminal of the processing integrated circuit and the hard logic circuits in the processing core.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: June 2, 2026
    Assignee: Altera Corporation
    Inventors: Md Altaf Hossain, Mahesh Kumashikar, Ankireddy Nalamalpu, Sreedhar Ravipalli
  • Patent number: 12632627
    Abstract: Systems or methods of the present disclosure may provide efficient circuit implementation on processing circuitry. The processing circuitry may include a processor, a programmable hardware, or both. The systems and methods may include determining and removing unused and/or redundant portions of predefined software and hardware description instructions before implementing associated circuitry. The implemented circuitry may perform various functions including parsing, pipelining, deparsing, temporary storage and combining, math operations, or a combination thereof, among other things.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: May 19, 2026
    Assignee: Altera Corporation
    Inventors: Krishna Kumar Nagar, Nathan Krueger, Yi Peng, Brandon Lewis Gordon, Anand Venkitasubramani