Patents by Inventor Anjian Wu
Anjian Wu 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: 20230270377Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: ApplicationFiled: May 5, 2023Publication date: August 31, 2023Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Patent number: 11678838Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: GrantFiled: December 29, 2020Date of Patent: June 20, 2023Assignee: FITBIT, INC.Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Publication number: 20220280048Abstract: In one embodiment, a method for creating a blood oxygen saturation (SpO2) value, the method comprises receiving one or more photoplethysmography (PPG) signals for SpO2 detection from one or more PPG sensors; receiving one or more PPG signals for characterizing a heart rate from the one or more PPG sensors; using the one or more PPG signals for SpO2 detection, forming one or more SpO2 datasets wherein the SpO2 datasets respectively comprise one or more noise components; removing the one or more noise components from the one or more SpO2 datasets that are inconsistent with a feature of the one or more PPG signals characterizing the heart rate to produce one or more filtered SpO2 datasets; and using the one or more filtered SpO2 datasets, creating and storing the SpO2.Type: ApplicationFiled: March 25, 2022Publication date: September 8, 2022Inventors: Anjian Wu, Chris H. Sarantos, Peter W. Richards, Shelten Gee Jao Yuen
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Patent number: 11317816Abstract: In one embodiment, a method for creating a blood oxygen saturation (SpO2) value, the method comprises receiving one or more photoplethysmography (PPG) signals for SpO2 detection from one or more PPG sensors; receiving one or more PPG signals for characterizing a heart rate from the one or more PPG sensors; using the one or more PPG signals for SpO2 detection, forming one or more SpO2 datasets wherein the SpO2 datasets respectively comprise one or more noise components; removing the one or more noise components from the one or more SpO2 datasets that are inconsistent with a feature of the one or more PPG signals characterizing the heart rate to produce one or more filtered SpO2 datasets; and using the one or more filtered SpO2 datasets, creating and storing the SpO2.Type: GrantFiled: February 21, 2020Date of Patent: May 3, 2022Assignee: Fitbit, Inc.Inventors: Anjian Wu, Chris H. Sarantos, Peter W. Richards, Shelten Gee Jao Yuen
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Publication number: 20210161464Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: ApplicationFiled: December 29, 2020Publication date: June 3, 2021Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Patent number: 10942579Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: GrantFiled: October 24, 2019Date of Patent: March 9, 2021Assignee: Fitbit, Inc.Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Patent number: 10874345Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: GrantFiled: May 31, 2019Date of Patent: December 29, 2020Assignee: Fitbit, Inc.Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Publication number: 20200167004Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: ApplicationFiled: October 24, 2019Publication date: May 28, 2020Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Patent number: 10568525Abstract: In one embodiment, a method for creating a blood oxygen saturation (SpO2) value, the method comprises receiving one or more photoplethysmography (PPG) signals for SpO2 detection from one or more PPG sensors; receiving one or more PPG signals for characterizing a heart rate from the one or more PPG sensors; using the one or more PPG signals for SpO2 detection, forming one or more SpO2 datasets wherein the SpO2 datasets respectively comprise one or more noise components; removing the one or more noise components from the one or more SpO2 datasets that are inconsistent with a feature of the one or more PPG signals characterizing the heart rate to produce one or more filtered SpO2 datasets; and using the one or more filtered SpO2 datasets, creating and storing the SpO2.Type: GrantFiled: December 12, 2016Date of Patent: February 25, 2020Assignee: Fitbit, Inc.Inventors: Anjian Wu, Chris H. Sarantos, Peter W. Richards, Shelten Gee Jao Yuen
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Patent number: 10503268Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: GrantFiled: October 5, 2018Date of Patent: December 10, 2019Assignee: Fitbit, Inc.Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Publication number: 20190282159Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: ApplicationFiled: May 31, 2019Publication date: September 19, 2019Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Patent number: 10219711Abstract: Some embodiments relate to a device, method, and/or computer-readable medium storing processor-executable process steps for processing a photoplethysmographic (“PPG”) signal in a monitoring device that monitors a property of blood flow. In some embodiments, the processing includes obtaining a first digital signal representing a detected light signal having a non-pulsatile (e.g., DC) component and a pulsatile component (e.g., AC). An offset control signal is generated from an estimation of the non-pulsatile component and a second digital signal is generated after subtracting the offset control signal from the detected light signal and applying a gain to the subtracted signal. A reconstructed signal is generated that is calculated from the gain and one or more of (i) the first digital signal, and (ii) the second digital signal and the offset control signal.Type: GrantFiled: July 29, 2016Date of Patent: March 5, 2019Assignee: Fitbit, Inc.Inventors: Anjian Wu, Peter W. Richards, Shelten Gee Jao Yuen
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Publication number: 20190053754Abstract: Approaches to determining a sleep fitness score for a user are provided, such as may be based upon monitored breathing disturbances of a user. The system receives user state data generated over a time period by a combination of sensors provided via a wearable tracker associated with the user. A system can use this information to calculate a sleep fitness score, breathing disturbance score, or other such value. The system can classify every minute within the time period as either normal or atypical, for example, and may provide such information for presentation to the user.Type: ApplicationFiled: August 16, 2018Publication date: February 21, 2019Inventors: Suraj Gowda, Conor Joseph Heneghan, Shelten Gee Jao Yuen, Anjian Wu, Daniel Joel Freschl, Peter W. Richards, Chris H. Sarantos, Jonathan Wonwook Kim
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Publication number: 20190050064Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: ApplicationFiled: October 5, 2018Publication date: February 14, 2019Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Patent number: 10126830Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: GrantFiled: November 14, 2017Date of Patent: November 13, 2018Assignee: Fitbit, Inc.Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Publication number: 20180067565Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: ApplicationFiled: November 14, 2017Publication date: March 8, 2018Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Publication number: 20180028077Abstract: Some embodiments relate to a device, method, and/or computer-readable medium storing processor-executable process steps for processing a photoplethysmographic (“PPG”) signal in a monitoring device that monitors a property of blood flow. In some embodiments, the processing includes obtaining a first digital signal representing a detected light signal having a non-pulsatile (e.g., DC) component and a pulsatile component (e.g., AC). An offset control signal is generated from an estimation of the non-pulsatile component and a second digital signal is generated after subtracting the offset control signal from the detected light signal and applying a gain to the subtracted signal. A reconstructed signal is generated that is calculated from the gain and one or more of (i) the first digital signal, and (ii) the second digital signal and the offset control signal.Type: ApplicationFiled: July 29, 2016Publication date: February 1, 2018Inventors: Anjian WU, Peter W. RICHARDS, Shelten Gee Jao YUEN
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Patent number: 9851808Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: GrantFiled: May 23, 2017Date of Patent: December 26, 2017Assignee: Fitbit, Inc.Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Publication number: 20170255273Abstract: The disclosure relates to methods, devices, and systems to identify a user of a wearable fitness monitor using data obtained using the wearable fitness monitor. Data obtained from motion sensors of the wearable fitness monitor and data obtained from heartbeat waveform sensors of the wearable fitness monitor may be used to identify the user.Type: ApplicationFiled: May 23, 2017Publication date: September 7, 2017Inventors: Shelten Gee Jao Yuen, James Park, Atiyeh Ghoreyshi, Anjian Wu
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Patent number: 9730644Abstract: Processing a photoplethysmographic (“PPG”) signal in a monitoring device that monitors a property of blood flow. A switching component is operated to select between at least a first light source when the mode selection signal specifies the first mode of operation and a second light source when a mode selection signal specifies the second mode of operation. A selected one of the first light source and the second light source, as selected by the switching component, is then operated. A first digital signal representing a detected light signal from the selected light source is obtained, and a second digital signal is generated from the first digital signal based at least in part on the selected mode of operation. The second digital signal is provided to a processor for use by the processor in measuring a property of blood flow.Type: GrantFiled: July 29, 2016Date of Patent: August 15, 2017Assignee: FITBIT, INC.Inventors: Anjian Wu, Peter W. Richards, Shelten Gee Jao Yuen