Patents by Inventor Gwendolyn van der Linden
Gwendolyn van der Linden 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: 11885838Abstract: A smart-home device may include a main power rail that provides power to components of the smart-home device; an integrator coupled to the main power rail that stores energy on an energy-storage device, where the energy stored on the energy-storage device is representative of an amount an amount of power provided to the smart-home device through the main power rail during an integration cycle of the integrator; and a counter that stores a number of integration cycles performed by the integrator during a time interval, where a total amount of power provided to the smart-home device through the main power rail during the time interval is represented by: (1) the number of integration cycles performed by the integrator during the time interval; and (2) the energy stored on the energy-storage device.Type: GrantFiled: August 28, 2020Date of Patent: January 30, 2024Assignee: Google LLCInventors: Daniel Adam Warren, Michael Mitchell, Gwendolyn van der Linden, Ford Rylander, Brian Silverstein, Arun Raghupathy
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Patent number: 11860038Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: GrantFiled: October 7, 2021Date of Patent: January 2, 2024Assignee: Google LLCInventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon
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Patent number: 11726507Abstract: A smart-home device may include a temperature sensor, energy-consuming subsystems, and processors programmed to receive a temperature measurement from the temperature sensor for an ambient environment surrounding the temperature sensor; receive inputs from the energy-consuming subsystems that indicate power-consuming activities of the energy-consuming subsystems; providing the inputs from the energy-consuming subsystems to a model that is trained to calculate an effect of the power-consuming activity of the energy-consuming subsystems on the temperature measurement from the temperature sensor; and calculating an estimate of the temperature of the ambient environment by compensating the temperature measurement from the temperature sensor with using the effect of the power-consuming activity of the energy-consuming subsystems.Type: GrantFiled: August 28, 2020Date of Patent: August 15, 2023Assignee: Google LLCInventors: Daniel Adam Warren, Michael Mitchell, Gwendolyn van der Linden, Ford Rylander, Brian Silverstein, Arun Raghupathy
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Publication number: 20220065906Abstract: A smart-home device may include a main power rail that provides power to components of the smart-home device; an integrator coupled to the main power rail that stores energy on an energy-storage device, where the energy stored on the energy-storage device is representative of an amount an amount of power provided to the smart-home device through the main power rail during an integration cycle of the integrator; and a counter that stores a number of integration cycles performed by the integrator during a time interval, where a total amount of power provided to the smart-home device through the main power rail during the time interval is represented by: (1) the number of integration cycles performed by the integrator during the time interval; and (2) the energy stored on the energy-storage device.Type: ApplicationFiled: August 28, 2020Publication date: March 3, 2022Applicant: Google LLCInventors: Daniel Adam Warren, Michael Mitchell, Gwendolyn van der Linden, Ford Rylander, Brian Silverstein, Arun Raghupathy
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Publication number: 20220066484Abstract: A smart-home device may include a temperature sensor, energy-consuming subsystems, and processors programmed to receive a temperature measurement from the temperature sensor for an ambient environment surrounding the temperature sensor; receive inputs from the energy-consuming subsystems that indicate power-consuming activities of the energy-consuming subsystems; providing the inputs from the energy-consuming subsystems to a model that is trained to calculate an effect of the power-consuming activity of the energy-consuming subsystems on the temperature measurement from the temperature sensor; and calculating an estimate of the temperature of the ambient environment by compensating the temperature measurement from the temperature sensor with using the effect of the power-consuming activity of the energy-consuming subsystems.Type: ApplicationFiled: August 28, 2020Publication date: March 3, 2022Applicant: Google LLCInventors: Daniel Adam Warren, Michael Mitchell, Gwendolyn van der Linden, Ford Rylander, Brian Silverstein, Arun Raghupathy
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Publication number: 20220026277Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Inventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon
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Patent number: 11175185Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: GrantFiled: June 5, 2020Date of Patent: November 16, 2021Assignee: GOOGLE LLCInventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon
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Patent number: 10942196Abstract: Systems and methods of detecting human movement with a sensor are provided, including generating a motion event signal in response to movement detected by the sensor, and generating a parameterized curve to represent the detected motion. The parameterized curve is fit to a predetermined window of sensor data captured by the sensor to filter the motion event signal. A noise magnitude estimate and a curve fit error is determined based on the fitted parameterized curve to the predetermined window. A detection threshold value is determined based on the curve fit error, a noise source signal estimate of known noise, and zero or more noise magnitudes from other sources. Human motion is determined by correlating a true motion event signal with human motion based on a comparison between a value of a point on the parameterized curve and the detection threshold value.Type: GrantFiled: August 14, 2017Date of Patent: March 9, 2021Assignee: GOOGLE LLCInventors: Mark Rajan Malhotra, Gwendolyn van der Linden, Yash Modi, Dongeek Shin
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Publication number: 20200300707Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Inventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon
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Patent number: 10712204Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: GrantFiled: February 10, 2017Date of Patent: July 14, 2020Assignee: GOOGLE LLCInventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon
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Publication number: 20190049479Abstract: Systems and methods of detecting human movement with a sensor are provided, including generating a motion event signal in response to movement detected by the sensor, and generating a parameterized curve to represent the detected motion. The parameterized curve is fit to a predetermined window of sensor data captured by the sensor to filter the motion event signal. A noise magnitude estimate and a curve fit error is determined based on the fitted parameterized curve to the predetermined window. A detection threshold value is determined based on the curve fit error, a noise source signal estimate of known noise, and zero or more noise magnitudes from other sources. Human motion is determined by correlating a true motion event signal with human motion based on a comparison between a value of a point on the parameterized curve and the detection threshold value.Type: ApplicationFiled: August 14, 2017Publication date: February 14, 2019Inventors: Mark Rajan Malhotra, Gwendolyn van der Linden, Yash Modi, Dongeek Shin
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Publication number: 20180231419Abstract: A method includes detecting, with a passive infrared sensor (PIR), a level of infrared radiation in a field of view (FOV) of the PIR, generating a signal based on detected levels over a period of time, the signal having values that exhibit a change in the detected levels, extracting a local feature from a sample of the signal, wherein the local feature indicates a probability that a human in the FOV caused the change in the detected levels, extracting a global feature from the sample of the signal, wherein the global feature indicates a probability that an environmental radiation source caused the change in the detected levels, determining a score based on the local feature and the global feature, and determining that a human motion has been detected in the FOV based on the score.Type: ApplicationFiled: February 10, 2017Publication date: August 16, 2018Inventors: Yash Modi, Mark Rajan Malhotra, Gwendolyn van der Linden, Dongeek Shin, Michael Dixon