Patents by Inventor Daniel Barus
Daniel Barus 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).
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Patent number: 10458683Abstract: Systems and methods for mitigating heat rejection limitations of a thermoelectric module are disclosed. In some embodiments, a method of operating a thermoelectric module includes providing a first amount of power to the thermoelectric module and determining that a temperature of a hot side of the thermoelectric module is above a first threshold. The method also includes, in response to determining that the temperature of the hot side is above the first threshold, providing a second amount of power to the thermoelectric module that is less than the first amount of power. The method also includes determining that the temperature of the hot side of the thermoelectric module is below a second threshold and providing a third amount of power to the thermoelectric module. In some embodiments, this mitigates heat rejection limitations of the thermoelectric module, especially when the hot side of the thermoelectric module is passively cooled.Type: GrantFiled: September 9, 2015Date of Patent: October 29, 2019Assignee: Phononic, Inc.Inventors: Jesse W. Edwards, Robert Joseph Therrien, Daniel Barus, Marshall Stanley, Abhishek Yadav, Daniel Swann
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Publication number: 20180259231Abstract: A solid-state switch architecture for multi-mode operation of a thermoelectric device and a method of operating such a device are provided herein. The switch architecture includes one or more inputs operable to receive power from one or more power supplies. The switch architecture also includes multiple outputs operable to provide power to respective channels of the thermoelectric device. The switch architecture also includes multiple solid-state switches operable to connect the one or more inputs to the outputs and a controller operable to toggle the solid-state switches to provide multiple modes of operation of the thermoelectric device. In this way, the thermoelectric device can be operated in a more efficient way while decreasing the size and increasing the reliability of the switch architecture. Also, this may allow the use of standard and less expensive power supplies. This may result in a significant reduction in cost and an increase in reliability.Type: ApplicationFiled: March 8, 2018Publication date: September 13, 2018Inventor: Daniel Barus
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Patent number: 9683752Abstract: Embodiments of a hybrid fan and active heat pumping system are disclosed. In some embodiments, the hybrid fan and active heat pumping system comprises a fan assembly and an active heat pumping system comprises a heat pump. The active heat pumping system is integrated with the fan assembly and is operable to actively cool or heat air as the air passes through the fan assembly. In some embodiments, the heat pump comprised in the active heat pumping system is a solid-state heat pump, a vapor compression heat pump, or a Stirling Cycle heat pump.Type: GrantFiled: October 20, 2016Date of Patent: June 20, 2017Assignee: Phononic Devices, Inc.Inventors: Jesse W. Edwards, Robert Joseph Therrien, Mattias K-O Olsson, Robert B. Allen, Abhishek Yadav, Paul Brian McCain, Ricardo E. Rodriguez, Justin W. English, Daniel Barus, Marshall Stanley
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Patent number: 9593871Abstract: Systems and methods for operating a thermoelectric module to increase efficiency are disclosed. In some embodiments, a method of operating a thermoelectric module includes determining a first amount of power that would maximize a coefficient of performance of the thermoelectric module based on one or more system parameters and providing the first amount of power to the thermoelectric module. The method also includes determining that at least one of the one or more system parameters has changed, determining a second amount of power that would maximize the coefficient of performance of the thermoelectric module based on the one or more system parameters, and providing the second amount of power to the thermoelectric module. In some embodiments, adjusting the amount of power provided based on the one or more system parameters increases the efficiency of the thermoelectric module.Type: GrantFiled: September 9, 2015Date of Patent: March 14, 2017Assignee: Phononic Devices, Inc.Inventors: Marshall Stanley, Daniel Barus
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Patent number: 9581362Abstract: Systems and methods are disclosed herein relating to an Alternating Current-Direct Current (AC-DC) power conversion system for supplying power to one or more Thermoelectric Coolers (TECs). In some embodiments, a system comprises one or more TECs and an AC-DC power conversion system configured to supply power to the one or more TECs for a high efficiency mode of operation and a high heat pumping mode of operation. The AC-DC power conversion system comprises a first AC-DC power converter configured to convert an AC input to a DC output at a first output power level for the high efficiency mode of operation of the one or more TECs. The AC-DC power conversion system further comprises a second AC-DC power converter configured to convert the AC input to a DC output at a second output power level for the high heat pumping mode of operation of the one or more TECs.Type: GrantFiled: June 8, 2015Date of Patent: February 28, 2017Assignee: Phononic Devices, Inc.Inventors: Marshall Stanley, Daniel Barus, Ricardo E. Rodriguez, Jesse W. Edwards, Robert Joseph Therrien
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Publication number: 20170038084Abstract: Embodiments of a hybrid fan and active heat pumping system are disclosed. In some embodiments, the hybrid fan and active heat pumping system comprises a fan assembly and an active heat pumping system comprises a heat pump. The active heat pumping system is integrated with the fan assembly and is operable to actively cool or heat air as the air passes through the fan assembly. In some embodiments, the heat pump comprised in the active heat pumping system is a solid-state heat pump, a vapor compression heat pump, or a Stirling Cycle heat pump.Type: ApplicationFiled: October 20, 2016Publication date: February 9, 2017Inventors: Jesse W. Edwards, Robert Joseph Therrien, Mattias K-O Olsson, Robert B. Allen, Abhishek Yadav, Paul Brian McCain, Ricardo E. Rodriguez, Justin W. English, Daniel Barus, Marshall Stanley
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Publication number: 20160018140Abstract: Systems and methods for operating a thermoelectric module to increase efficiency are disclosed. In some embodiments, a method of operating a thermoelectric module includes determining a first amount of power that would maximize a coefficient of performance of the thermoelectric module based on one or more system parameters and providing the first amount of power to the thermoelectric module. The method also includes determining that at least one of the one or more system parameters has changed, determining a second amount of power that would maximize the coefficient of performance of the thermoelectric module based on the one or more system parameters, and providing the second amount of power to the thermoelectric module. In some embodiments, adjusting the amount of power provided based on the one or more system parameters increases the efficiency of the thermoelectric module.Type: ApplicationFiled: September 9, 2015Publication date: January 21, 2016Inventors: Marshall Stanley, Daniel Barus
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Publication number: 20160018141Abstract: Systems and methods for mitigating heat rejection limitations of a thermoelectric module are disclosed. In some embodiments, a method of operating a thermoelectric module includes providing a first amount of power to the thermoelectric module and determining that a temperature of a hot side of the thermoelectric module is above a first threshold. The method also includes, in response to determining that the temperature of the hot side is above the first threshold, providing a second amount of power to the thermoelectric module that is less than the first amount of power. The method also includes determining that the temperature of the hot side of the thermoelectric module is below a second threshold and providing a third amount of power to the thermoelectric module. In some embodiments, this mitigates heat rejection limitations of the thermoelectric module, especially when the hot side of the thermoelectric module is passively cooled.Type: ApplicationFiled: September 9, 2015Publication date: January 21, 2016Inventors: Jesse W. Edwards, Robert Joseph Therrien, Daniel Barus, Marshall Stanley, Abhishek Yadav, Daniel Swann
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Publication number: 20150354869Abstract: Embodiments of a hybrid fan and active heat pumping system are disclosed. In some embodiments, the hybrid fan and active heat pumping system comprises a fan assembly and an active heat pumping system comprises a heat pump. The active heat pumping system is integrated with the fan assembly and is operable to actively cool or heat air as the air passes through the fan assembly. In some embodiments, the heat pump comprised in the active heat pumping system is a solid-state heat pump, a vapor compression heat pump, or a Stirling Cycle heat pump.Type: ApplicationFiled: June 9, 2015Publication date: December 10, 2015Inventors: Jesse W. Edwards, Robert Joseph Therrien, Mattias K-O Olsson, Robert B. Allen, Abhishek Yadav, Paul Brian McCain, Ricardo E. Rodriguez, Justin W. English, Daniel Barus, Marshall Stanley
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Publication number: 20150354866Abstract: Systems and methods are disclosed herein relating to an Alternating Current-Direct Current (AC-DC) power conversion system for supplying power to one or more Thermoelectric Coolers (TECs). In some embodiments, a system comprises one or more TECs and an AC-DC power conversion system configured to supply power to the one or more TECs for a high efficiency mode of operation and a high heat pumping mode of operation. The AC-DC power conversion system comprises a first AC-DC power converter configured to convert an AC input to a DC output at a first output power level for the high efficiency mode of operation of the one or more TECs. The AC-DC power conversion system further comprises a second AC-DC power converter configured to convert the AC input to a DC output at a second output power level for the high heat pumping mode of operation of the one or more TECs.Type: ApplicationFiled: June 8, 2015Publication date: December 10, 2015Inventors: Marshall Stanley, Daniel Barus, Ricardo E. Rodriguez, Jesse W. Edwards, Robert Joseph Therrien
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Patent number: 8086305Abstract: An implantable microvolt-level signal amplifying circuit may be used for resolving electrical signals generated by nerves in the presence of larger amplitude signals generated by muscles, the heart, or external noise sources. The circuit has a low-noise, high Common Mode Rejection Ratio (CMRR) preamplifier, followed by a cascade of stages, which provide filtering and further amplification of the neural signal. The band-pass amplifying circuit can also present high Power Supply Rejection Ratio (PSRR). The output is offset-compensated by a DC restoration stage. Nerve protection circuitry minimizes or blocks DC current flow through the input terminals in the event of semiconductor failure in the preamplifier. The circuit may be incorporated onto a common monolithic circuit with follow-up circuitry for controlling Functional Electrical Stimulation (FES) devices.Type: GrantFiled: December 21, 2005Date of Patent: December 27, 2011Assignee: Neurostream Technologies General PartnershipInventor: Marcelo Daniel Baru Fassio
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Patent number: 7636602Abstract: A fully implantable nerve stimulation system includes an event-triggered, closed-loop control unit that detects physiological events from nerve signals and delivers stimulation pulses to a nerve to produce a desired physiological response. The stimulation system includes a low-noise, low-power nerve signal amplifier, accelerometers that detect position and a battery powered processor that selectively powers components in the system to detect physiological events and deliver stimulation pulses with a minimum of battery power.Type: GrantFiled: April 2, 2004Date of Patent: December 22, 2009Assignee: Neurostream Technologies General PartnershipInventors: Marcelo Daniel Baru Fassio, Joaquin Andres Hoffer, Enric Calderon, Gary Bernhard Jenne, Albert Calderon
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Publication number: 20060038587Abstract: In a bi-directional, self-synchronous bus for communication between semiconductor devices, a logic delay is provided as a flag to a state machine control for indicating that the bus is making a transition from a low to a high state. The logic delay causes the bus to adaptively idle until the bus settles, making it amenable for a wide variety of bus sizes and topologies. In this way, oscillation of the bus is avoided without slowing the speed of the state machine clock.Type: ApplicationFiled: October 20, 2005Publication date: February 23, 2006Applicant: International Business Machines CorporationInventors: Daniel Barus, Eileen Behrendt, Jeffrey Biamonte, Raymond Harrington, Timothy Trifilo
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Patent number: 6996435Abstract: An implantable microvolt-level signal amplifying circuit may be used for resolving electrical signals generated by nerves in the presence of larger amplitude signals generated by muscles, the heart, or external noise sources. The circuit has a low-noise, high Common Mode Rejection Ratio (CMRR) preamplifier, followed by a cascade of stages, which provide filtering and further amplification of the neural signal. The band-pass amplifying circuit can also present high Power Supply Rejection Ratio (PSRR). The output is offset-compensated by a DC restoration stage. Nerve protection circuitry minimizes or blocks DC current flow through the input terminals in the event of semiconductor failure in the preamplifier. The circuit may be incorporated onto a common monolithic circuit with follow-up circuitry for controlling Functional Electrical Stimulation (FES) devices.Type: GrantFiled: November 19, 2001Date of Patent: February 7, 2006Assignee: Neurostream Technologies Inc.Inventor: Marcelo Daniel Baru Fassio
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Publication number: 20050146358Abstract: In a bi-directional, self-synchronous bus for communication between semiconductor devices, a logic delay is provided as a flag to a state machine control for indicating that the bus is making a transition from a low to a high state. The logic delay causes the bus to adaptively idle until the bus settles, making it amenable for a wide variety of bus sizes and topologies. In this way, oscillation of the bus is avoided without slowing the speed of the state machine clock.Type: ApplicationFiled: January 7, 2004Publication date: July 7, 2005Applicant: International Business Machines CorporationInventors: Daniel Barus, Eileen Behrendt, Jeffrey Biamonte, Raymond Harrington, Timothy Trifilo
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Publication number: 20050066065Abstract: A communication system for establishing bidirectional, asynchronous communication between a first device and a second device. The system includes first asynchronous encoder logic and second asynchronous encoder logic for controlling the state of the communication system such that bidirectional communication is enabled without a direction control line.Type: ApplicationFiled: September 23, 2003Publication date: March 24, 2005Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Daniel Barus, Jeffrey Biamonte, Raymond Harrington, Timothy Trifilo
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Publication number: 20030097050Abstract: An implantable microvolt-level signal amplifying circuit may be used for resolving electrical signals generated by nerves in the presence of larger amplitude signals generated by muscles, the heart, or external noise sources. The circuit has a low-noise, high Common Mode Rejection Ratio (CMRR) preamplifier, followed by a cascade of stages, which provide filtering and further amplification of the neural signal. The band-pass amplifying circuit can also present high Power Supply Rejection Ratio (PSRR). The output is offset-compensated by a DC restoration stage. Nerve protection circuitry minimizes or blocks DC current flow through the input terminals in the event of semiconductor failure in the preamplifier. The circuit may be incorporated onto a common monolithic circuit with follow-up circuitry for controlling Functional Electrical Stimulation (FES) devices.Type: ApplicationFiled: November 19, 2001Publication date: May 22, 2003Inventor: Marcelo Daniel Baru Fassio