Patents by Inventor Koushik De

Koushik De 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).

  • Publication number: 20230153597
    Abstract: An Integrated Circuit with an automatically re-tuning analog circuit is provided. The Integrated Circuit comprises (a) an analog circuit comprising a plurality of tunable components each configured to respond to a plurality of change control bits, (b) a Process, Voltage Temperature (PVT) characteristics monitor comprising a plurality of PVT sensors, (c) a tuning memory embedded with a machine learning (ML) model of the analog circuit and (d) an artificial intelligence (AI) engine configured to receive a PVT signal input from the plurality of PVT sensors and the machine learning model embedded in the tuning memory. Each tunable component is configured to change its electrical characteristics such that together each of the tunable components is enabled to retune the analog circuit to attain a predefined set of electrical characteristics.
    Type: Application
    Filed: May 27, 2022
    Publication date: May 18, 2023
    Inventors: Koushik De, Khanh Minh Le, Deepthi Amuru, Zia Abbas
  • Patent number: 11416664
    Abstract: The present description relates to a method based on artificial intelligence to implement a wide range of microelectronic circuits that can adapt by themselves to the usage conditions (e.g. loading changes), manufacturing variances or defects (e.g. process variations, device parameter mismatches, device model inaccuracies or changes, etc.), as well as environmental conditions (e.g. voltage, temperature, interference) in order to negate all or part of their effects on the circuit performance characteristics and achieve a very tight set of specifications over the wide range of conditions. Each microelectronic circuit is represented by a neural network model whose behavior is a function of the actual input signals, the usage and environmental conditions.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Analog Intelligent Design, Inc.
    Inventors: Khanh M Le, Koushik De, Deepthi Amuru, Zia Abbas
  • Publication number: 20220092246
    Abstract: A system and method for synthesizing analog design in real-time using an artificial intelligence and machine learning (AI/ML) model are provided. The method includes (i) generating a behavioral model of an analog macro using the AI/ML model; (ii) determining one or more operations that is required to implement the behavioral model by scanning the behavioral model; (iii) selecting, using the AI/ML model, the analog macro based on at least one specification that corresponds to the analog macro; (iv) synthesizing, the analog macro that is selected by the AI/ML model 214 and one or more leaf cells for each selected analog macro of the behavioral architectural implementation to obtain a gate-level circuit design based on a figure of merit (FoM) of the analog macro and (v) determining, using the AI/ML model, the analog circuit design for the integrated circuit system based on the gate level circuit design that is synthesized.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 24, 2022
    Inventors: Zia Abbas, Koushik De
  • Publication number: 20210182466
    Abstract: The present description relates to a method based on artificial intelligence to implement a wide range of microelectronic circuits that can adapt by themselves to the usage conditions (e.g. loading changes), manufacturing variances or defects (e.g. process variations, device parameter mismatches, device model inaccuracies or changes, etc.), as well as environmental conditions (e.g. voltage, temperature, interference) in order to negate all or part of their effects on the circuit performance characteristics and achieve a very tight set of specifications over the wide range of conditions. Each microelectronic circuit is represented by a neural network model whose behavior is a function of the actual input signals, the usage and environmental conditions.
    Type: Application
    Filed: November 3, 2020
    Publication date: June 17, 2021
    Inventors: Khanh M Le, Koushik De, Deepthi Amuru, Zia Abbas
  • Patent number: 10498351
    Abstract: A digital-to-analog converter (“DAC”) system for converting a digital input code to an analog signal, comprises: an N-bit DAC and a back-gate bias generator (“BBGEN”). The N-bit DAC has a reference cell and a current source array of unit cells for generating a DAC output. The (“BBGEN”) generates a first back-gate bias voltage PB_CSM and a second back-gate bias voltage PB_CSA. A back gate of the reference cell is configured to receive the first back-gate bias voltage PB_CSM. A back gate of each of the unit cells is configured to receive the second back-gate bias voltage PB_CSA. The reference cell is configured to generate a main current, and the unit cells are configured to mirror the main current.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 3, 2019
    Assignee: Invecas, Inc.
    Inventors: Koushik De, Pramod Kumar Chennoju
  • Publication number: 20190363729
    Abstract: A digital-to-analog converter (“DAC”) system for converting a digital input code to an analog signal, comprises: an N-bit DAC and a back-gate bias generator (“BBGEN”). The N-bit DAC has a reference cell and a current source array of unit cells for generating a DAC output. The (“BBGEN”) generates a first back-gate bias voltage PB_CSM and a second back-gate bias voltage PB_CSA. A back gate of the reference cell is configured to receive the first back-gate bias voltage PB_CSM. A back gate of each of the unit cells is configured to receive the second back-gate bias voltage PB_CSA. The reference cell is configured to generate a main current, and the unit cells are configured to mirror the main current.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 28, 2019
    Inventors: Koushik De, Pramod Kumar Chennoju
  • Patent number: 10302509
    Abstract: Temperature sensors for integrated circuits that use back-gate bias for low power operation. A temperature sensor can comprise a voltage-gate-source generator having sensing transistors; an Ibias generator; a back-gate bias generator; and a temperature read-out circuit. In a calibration mode, the temperature sensor determines a back-gate bias voltage and a resistor trimming code to be used during functional operation.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 28, 2019
    Assignee: Invecas, Inc.
    Inventors: Santosh Kumar Pandiri, Prasanth Kumar Krishna, Koushik De, Ankush Kumar Dubey
  • Publication number: 20180164163
    Abstract: Temperature sensors for integrated circuits that use back-gate bias for low power operation. A temperature sensor can comprise a voltage-gate-source generator having sensing transistors; an Ibias generator; a back-gate bias generator; and a temperature read-out circuit. In a calibration mode, the temperature sensor determines a back-gate bias voltage and a resistor trimming code to be used during functional operation.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 14, 2018
    Inventors: Santosh Kumar Pandiri, Prasanth Kumar Krishna, Koushik De, Ankush Kumar Dubey
  • Patent number: 9407254
    Abstract: A device for controlling a power-on reset signal can include a constant current source, for controlling a reference current that is independent of a supply voltage, and a trip point detector circuit driven by the reference current. The trip point detector circuit detects when the supply voltage of the device exceeds a first trip point voltage, and de-asserts the power-on reset signal when the supply voltage exceeds the first trip point voltage. The first trip point voltage can be controlled by a sum of a threshold voltage of a first n-type metal-oxide-semiconductor transistor, a voltage drop across a first resistor, and a threshold voltage of a first p-type metal-oxide-semiconductor transistor. The device may further include a hysteresis circuit, for detecting when the supply voltage falls below a second trip point voltage and causing the trip point detector circuit to reassert the power-on reset signal.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 2, 2016
    Assignee: XILINX, INC.
    Inventors: Koushik De, Santosh Yachareni, Shidong Zhou