Patents by Inventor Yannis Tsividis

Yannis Tsividis 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: 20240267843
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Application
    Filed: April 16, 2024
    Publication date: August 8, 2024
    Applicant: THETA IP, LLC
    Inventor: Yannis TSIVIDIS
  • Patent number: 11991626
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: May 21, 2024
    Assignee: THETA IP, LLC
    Inventor: Yannis Tsividis
  • Publication number: 20230199646
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Application
    Filed: February 21, 2023
    Publication date: June 22, 2023
    Applicant: THETA IP, LLC
    Inventor: Yannis TSIVIDIS
  • Publication number: 20230129881
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 27, 2023
    Applicant: THETA IP, LLC
    Inventor: Yannis TSIVIDIS
  • Patent number: 11638210
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: April 25, 2023
    Assignee: Theta IP, LLC
    Inventor: Yannis Tsividis
  • Patent number: 11564164
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 24, 2023
    Assignee: THETA IP, LLC
    Inventor: Yannis Tsividis
  • Publication number: 20210385748
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 9, 2021
    Applicant: THETA IP, LLC
    Inventor: Yannis TSIVIDIS
  • Patent number: 11129097
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: September 21, 2021
    Assignee: THETA IP, LLC
    Inventor: Yannis Tsividis
  • Patent number: 11120230
    Abstract: An improved integrator for use in physical analog-computing systems is disclosed, featuring real-time dynamic amplitude scaling schemas that make use of an injected correction factor responsive to a contemporaneous change in an input dynamic-amplitude-scaling compensation factor. The injected correction factor is designed to reduce or eliminate transient output perturbations due to the amplitude scaling change. The disclosures discussed have real-world applications for physical analog computers and hybrid computers used to control and manage many types of industrial-control systems.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 14, 2021
    Assignee: Sendyne Corporation
    Inventor: Yannis Tsividis
  • Patent number: 11017184
    Abstract: The inventive disclosures described herein generally pertain to an improved runtime-calibratable analog-computing system. In many embodiments, the improved analog-computing system comprises at least two analog computers, wherein after initial calibration, the system is designed to stagger the runtime calibration modes of each of the at least two analog-computers such that at least one of the analog computers is always in service, thus preventing any downtime for the overall system. In other words, a system user sees one initial calibration, and computing by the overall system is never interrupted.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: May 25, 2021
    Assignee: Sendyne Corporation
    Inventors: Yannis Tsividis, Carl Oppedahl
  • Publication number: 20210073483
    Abstract: The inventive disclosures described herein generally pertain to an improved runtime-calibratable analog-computing system. In many embodiments, the improved analog-computing system comprises at least two analog computers, wherein after initial calibration, the system is designed to stagger the runtime calibration modes of each of the at least two analog-computers such that at least one of the analog computers is always in service, thus preventing any downtime for the overall system. In other words, a system user sees one initial calibration, and computing by the overall system is never interrupted.
    Type: Application
    Filed: October 16, 2019
    Publication date: March 11, 2021
    Inventors: Yannis Tsividis, Carl Oppedahl
  • Publication number: 20200265198
    Abstract: An improved integrator for use in physical analog-computing systems is disclosed, featuring real-time dynamic amplitude scaling schemas that make use of an injected correction factor responsive to a contemporaneous change in an input dynamic-amplitude-scaling compensation factor. The injected correction factor is designed to reduce or eliminate transient output perturbations due to the amplitude scaling change. The disclosures discussed have real-world applications for physical analog computers and hybrid computers used to control and manage many types of industrial-control systems.
    Type: Application
    Filed: September 19, 2019
    Publication date: August 20, 2020
    Inventor: Yannis Tsividis
  • Publication number: 20200120600
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Applicant: THETA IP, LLC
    Inventor: Yannis TSIVIDIS
  • Patent number: 10524202
    Abstract: Methods and circuits for reducing power dissipation in wireless transceivers and other electronic circuits and systems. Embodiments of the present invention use bias current reduction, impedance scaling, and gain changes either separately or in combination to reduce power dissipation. For example, bias currents are reduced in response to a need for reduced signal handling capability, impedances are scaled thus reducing required drive and other bias currents in response to a strong received signal, or gain is increased and impedances are scaled in response to a low received signal in the presence of no or weak interfering signals.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 31, 2019
    Assignee: THETA IP, LLC
    Inventor: Yannis Tsividis
  • Patent number: 10454143
    Abstract: A system and method are described permitting a sophisticated control of a battery composed of a multiplicity of three-terminal electrochemical cells. Each cell has first and second terminals, connected with respective electrodes, one of which is a positive terminal and one of which is a negative terminal. Each cell has a third terminal connected with a grid electrode. A battery is composed of N cells. For each of the N cells, there is provided a respective capacitor switchably coupled to the second and third terminals thereof. A controller is connected through a switching matrix to the capacitors. In operation, the controller is connected sequentially to each capacitor among the multiplicity of capacitors, during which time the capacitor is momentarily uncoupled from its respective cell. When the controller is connected to one of the capacitors, it measures the voltage thereupon. The controller can then charge up or discharge the capacitor to drive it to a desired voltage level.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: October 22, 2019
    Assignee: Sendyne Corporation
    Inventors: Yannis Tsividis, Carl Oppedahl
  • Patent number: 10447243
    Abstract: A method and apparatus to compensate for distortion of a waveform due to the skin effect in a current shunt. The method includes modeling the complex impedance of the shunt as component complex impedances. By designing a filter corresponding to the component complex impedances, the distortion of a waveform across the shunt may be reversed to provide an accurate replica of the undistorted waveform.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: October 15, 2019
    Assignee: Sendyne Corporation
    Inventor: Yannis Tsividis
  • Patent number: 10234512
    Abstract: An arrangement provides simulation of important battery factors such as state of charge or state of health, and the estimates are provided to the human user in ways that permit the human user to make better use of the battery, for example in an electric car. The arrangement is made up in part of nodes, each individually simulated, and at least some of the nodes communicate with each other by means of values which within the domain of the simulator are understood as currents but which may have real-world significance for some value that is not a current at all. The currents are passed on a (simulated) analog bus. Some lines on the analog bus, while understood as “currents” in the domain of the simulator, are actually values that merely pass messages between modeling elements, the “current” values not necessarily representing any real-life measurable such as the aforementioned temperature value.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 19, 2019
    Assignee: Sendyne Corporation
    Inventor: Yannis Tsividis
  • Patent number: 10218369
    Abstract: Disclosed herein are some continuous time systems and methods. Some of the disclosed systems and methods use a continuous-time analog-to-digital converter (ADC) configured to receive an analog input and to generate an ADC output, a continuous-time digital signal processor configured to receive the ADC output and generate one or more digital outputs, one or more digital-to-analog converters configured to receive the one or more digital outputs, each digital-to-analog converter configured to receive a corresponding digital output and generate an analog output, and an adder configured to receive the analog outputs of the one or more digital-to-analog converters and to generate a summed analog output.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 26, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Sharvil Pradeep Patil, Yannis Tsividis, Yu Chen
  • Patent number: 10193533
    Abstract: Continuous-time digital systems implemented with separate timing paths and data paths are disclosed. The disclosed continuous-time digital systems, can implement an event-grouping and detection method that can be used feedback systems with propagation delays. By implementing event-detection into a feedback loop of a continuous-time digital system, the system can automatically stop when there is no event in the system. When new events are detected the system can commence operation.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 29, 2019
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Yu Chen, Yannis Tsividis
  • Patent number: 10129825
    Abstract: Processes, methods and circuits for improving battery life by reducing the battery power-drain of battery-powered devices using wireless transceivers is disclosed. Embodiments of the present invention provide for dynamically changing the bias current, impedance, and gain, either separately or in combination, during circuit operation to optimize or to reduce power dissipation. The dynamic variations may be implemented by varying the value of a resistance and/or a capacitance by opening switches across one or more portions of the resistance. Also, the dynamic variations may include setting any of the gain, bias current, or impedance parameters of the receiver circuit in between a high and low level, followed by adjusting the parameter up or down in response to a desired signal and an interferer signal.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 13, 2018
    Assignee: Theta IP, LLC
    Inventor: Yannis Tsividis