Patents by Inventor Francis Tsow
Francis Tsow 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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Publication number: 20240017426Abstract: Systems and methods for multiple object transferring using robotics. A system includes a robotic hand with a base and fingers capable of grasping objects. A robotic arm is coupled to the robotic hand and is capable of moving the robotic hand. One or more circuits are configured to operate the robotic hand and the robotic arm by identifying a pre-grasp configuration for the robotic hand and executing a transfer routine based on a Markov decision process model to operate the robotic hand and the robotic arm such that they move multiple objects from a first location to a second location.Type: ApplicationFiled: July 14, 2023Publication date: January 18, 2024Inventors: Yu Sun, Adheesh Shenoy, Tianze Chen, Francis Tsow
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Patent number: 11566801Abstract: An integrated method for assessing metabolic rate and maintaining indoor air quality and efficient ventilation energy use. A physical sensor assesses room occupancy. An actuated ventilation system is set to a constant CO2 level in a predetermined healthy range, where the actuated ventilation system includes a CO2 sensor. The actuated ventilation system sets a first air ventilation rate and the sensor measures a first CO2 level. The system determines whether CO2 level is in a healthy range, if not then the CO2 level is adjusted by setting a subsequent air ventilation rate. A subsequent CO2 level is measured. If the CO2 level is determined to meet a predetermined healthy range, then an assessment of change of air ventilation rate (? ACH) is determined. The determination of air change rate can be further augmented by a physical pressure based measurement. The overall metabolic rate is generated.Type: GrantFiled: January 2, 2019Date of Patent: January 31, 2023Assignee: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Erica Forzani, Nongjian Tao, Francis Tsow
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Publication number: 20210378546Abstract: A stand-alone, fully integrated self-contained wearable metabolic analyzer for metabolic rate and respiratory quotient measurement. It includes a device body, disposable mask, and headgear. The device body comprises multiple different miniaturized modules, including a colorimetric sensing module, flow module, control circuit, power module, environmental sensors, wireless module, communication module, memory module, signal processing module, and display module. A disposable sensor chip, coated with chemical sensing probes, is utilized in the colorimetric sensing module for breath O2 and CO2 detection. A Venturi tube and pressure sensor-based flow module measures breath flow rate. The self-contained wearable metabolic analyzer derives physiological parameters including resting energy expenditure (REE), respiratory quotient (RQ), oxygen consumption (VO2), carbon dioxide production (VCO2), minute ventilation (VE), breath frequency (BF), and tidal volume (TV) from the measurement.Type: ApplicationFiled: October 8, 2019Publication date: December 9, 2021Inventors: Xiaojun Xian, Devon Bridgeman, Francis Tsow, Erica Forzani, Nongjian Tao
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Publication number: 20210048206Abstract: An integrated method for assessing metabolic rate and maintaining indoor air quality and efficient ventilation energy use. A physical sensor assesses room occupancy. An actuated ventilation system is set to a constant CO2 level in a predetermined healthy range, where the actuated ventilation system includes a CO2 sensor. The actuated ventilation system sets a first air ventilation rate and the sensor measures a first CO2 level. The system determines whether CO2 level is in a healthy range, if not then the CO2 level is adjusted by setting a subsequent air ventilation rate. A subsequent CO2 level is measured. If the CO2 level is determined to meet a predetermined healthy range, then an assessment of change of air ventilation rate (? ACH) is determined. The determination of air change rate can be further augmented by a physical pressure based measurement. The overall metabolic rate is generated.Type: ApplicationFiled: January 2, 2019Publication date: February 18, 2021Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Erica Forzani, Nongjian Tao, Francis Tsow
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Patent number: 10663442Abstract: A method for CO2 detection includes obtaining a gas sample; exposing a CO2 sensor to the gas sample, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for CO2 detection, and a hydrophobic surface; compensating for humidity and temperature; coupling at least one light source to receive signals from the CO2 sensor and respond to color changes in the sensor by transducing the color change into a light intensity change; measuring flow; and receiving signals from the at least one light source by at least one photodiode which responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity.Type: GrantFiled: February 19, 2019Date of Patent: May 26, 2020Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Erica Forzani, Nongjian Tao, Di Zhao, Francis Tsow
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Publication number: 20190257802Abstract: A method for CO2 detection includes obtaining a gas sample; exposing a CO2 sensor to the gas sample, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for CO2 detection, and a hydrophobic surface; compensating for humidity and temperature; coupling at least one light source to receive signals from the CO2 sensor and respond to color changes in the sensor by transducing the color change into a light intensity change; measuring flow; and receiving signals from the at least one light source by at least one photodiode which responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity.Type: ApplicationFiled: February 19, 2019Publication date: August 22, 2019Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Erica Forzani, Nongjian Tao, Di Zhao, Francis Tsow
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Patent number: 10209232Abstract: A CO2 detection chamber includes a gas inlet and a gas outlet. A CO2 sensor is housed in the CO2 detection chamber, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for CO2 detection, and a hydrophobic surface. A flowmeter, a thermistor and a humidity sensor operate to read flow and compensate for humidity conditions. A light source is coupled to receive signals from the CO2 sensor and respond to color changes in the sensor by transducing the color change into a light intensity change. A photodiode receives signals from the light source and responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity. Data representing CO2 measurements is transmitted for display to a mobile device.Type: GrantFiled: December 17, 2014Date of Patent: February 19, 2019Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Erica Forzani, Nongjian Tao, Di Zhao, Francis Tsow
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Patent number: 10078074Abstract: A system for measuring and tracking metabolic rate, physical activity and calorie intake. The metabolic rate is measured with a design that features an adaptive sampling mechanism for accurate breath sample collection, optimized flow rate measurement for minimizing backpressure while maximizing accuracy, humidity regulation and water condensation reduction mechanism for reliable performance, as well as breath temperature measurement for volume and humidity corrections. The system further comprises an improved algorithm for determining physical activity such as related energy expenditure, and a mechanism for tracking changes in food intake over time.Type: GrantFiled: January 21, 2014Date of Patent: September 18, 2018Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Francis Tsow, Xiaojun Xian, Erica Forzani, Nongjian Tao
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Patent number: 9931055Abstract: A low back pressure mouthpiece for accurate detection of exhaled nitric oxide (NO) includes a conduit for receiving the exhaled breath from the subject. An oxidizing filter for sample conditioning, wherein the conduit and oxidizing filter operate to produce a back pressure of less than 4 cm H2O; and a device for measuring the level of one or more components of the received exhaled breath.Type: GrantFiled: September 27, 2013Date of Patent: April 3, 2018Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Erica Forzani, Nongjian Tao, Xiaojun Xian, Francis Tsow
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Publication number: 20160313290Abstract: A CO2 detection chamber includes a gas inlet and a gas outlet. A CO2 sensor is housed in the CO2 detection chamber, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for CO2 detection, and a hydrophobic surface. A flowmeter, a thermistor and a humidity sensor operate to read flow and compensate for humidity conditions. A light source is coupled to receive signals from the CO2 sensor and respond to color changes in the sensor by transducing the color change into a light intensity change. A photodiode receives signals from the light source and responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity. Data representing CO2 measurements is transmitted for display to a mobile device.Type: ApplicationFiled: December 17, 2014Publication date: October 27, 2016Applicant: Arizona Board of Regents on behalf of Arizona Stat e UniversityInventors: Erica Forzani, Nongjian Tao, Di Zhao, Francis Tsow
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Patent number: 9347932Abstract: The present invention describes a device and method for measuring flow rate from air flow using acoustic resonance. It is shown that the device can be used to measure breath flow rate and biomarker concentration within human breath.Type: GrantFiled: October 3, 2011Date of Patent: May 24, 2016Assignee: ARIZONA BOARD OF REGENTS, A BODY CORPORATE OF THE STATE OF ARIZONA ACTING FOR AND ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Nongjian Tao, Francis Tsow, Anant Rai
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Publication number: 20150369795Abstract: A system for measuring and tracking metabolic rate, physical activity and calorie intake. The metabolic rate is measured with a design that features an adaptive sampling mechanism for accurate breath sample collection, optimized flow rate measurement for minimizing backpressure while maximizing accuracy, humidity regulation and water condensation reduction mechanism for reliable performance, as well as breath temperature measurement for volume and humidity corrections. The system further comprises an improved algorithm for determining physical activity such as related energy expenditure, and a mechanism for tracking changes in food intake over time.Type: ApplicationFiled: January 21, 2014Publication date: December 24, 2015Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Francis Tsow, Xiaojun Xian, Erica Forzani, Nongjian Tao
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Publication number: 20150201865Abstract: A low back pressure mouthpiece for accurate detection of exhaled nitric oxide (NO) includes a conduit for receiving the exhaled breath from the subject. An oxidizing filter for sample conditioning, wherein the conduit and oxidizing filter operate to produce a back pressure of less than 4 cm H2O; and a device for measuring the level of one or more components of the received exhaled breath.Type: ApplicationFiled: September 27, 2013Publication date: July 23, 2015Applicant: Arizona Board of Regents on behalf of Arizona State UniversityInventors: Erica Forzani, Nongjian Tao, Xiaojun Xian, Francis Tsow
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Publication number: 20130239655Abstract: The present invention describes a device and method for measuring flow rate from air flow using acoustic resonance. It is shown that the device can be used to measure breath flow rate and biomarker concentration within human breath.Type: ApplicationFiled: October 3, 2011Publication date: September 19, 2013Inventors: Nongjian Tao, Francis Tsow, Ananti Rai
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Publication number: 20120270330Abstract: The present invention provides a device that makes it possible to perform real-time detection and analysis of BTEX components in real samples using an inexpensive and miniaturized hybrid specific binding-separation device. The device may be used in occupational health and safety applications as well as for toxicological population studies to determine the presence of organic volatile components in an air sample.Type: ApplicationFiled: August 25, 2010Publication date: October 25, 2012Applicant: Arizona Board of Regents for and on behalf of Arizona State UniversityInventors: Nongjian Tao, Erica Forzani, Rodrigo A Iglesias, Francis Tsow
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Patent number: 7785001Abstract: An apparatus for sensing a change in environmental conditions is disclosed. The apparatus includes a coating or a wire between two surfaces that has a mechanical property changed as a result of a change in the environmental conditions. The change in the mechanical property of the coating or wire results in a change in a vibration characteristic of the apparatus, such as the frequency, phase, amplitude or quality factor. The change in the vibration characteristic can be used to determine the change in the environmental condition.Type: GrantFiled: November 15, 2007Date of Patent: August 31, 2010Assignee: Arizona Board of RegentsInventors: Nongjian Tao, Francis Tsow
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Publication number: 20080205479Abstract: An apparatus for sensing a change in environmental conditions is disclosed. The apparatus includes a coating or a wire between two surfaces that has a mechanical property changed as a result of a change in the environmental conditions. The change in the mechanical property of the coating or wire results in a change in a vibration characteristic of the apparatus, such as the frequency, phase, amplitude or quality factor. The change in the vibration characteristic can be used to determine the change in the environmental condition.Type: ApplicationFiled: November 15, 2007Publication date: August 28, 2008Applicant: ARIZONA BOARD OF REGENTS FOR AND ON BEHALF OF ARIZONA STATE UNIVERSITYInventors: Nongjian Tao, Francis Tsow