Patents by Inventor Zijing Zeng
Zijing Zeng 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: 12220213Abstract: Methods and devices for obtaining a blood pressure measurement of a subject measure a transit time of a blood pulse of the subject. A method includes sensing, with a pulse ejection sensor of a wrist-worn device, ejection of blood from the left ventricle. Arrival of a resulting blood pressure pulse at the wrist is sensed via a pulse arrival sensor of the wrist-worn device. A transit time of the blood pressure pulse from the left ventricle to the wrist is determined. A relative blood pressure value of the subject is determined based on the transit time. A reference absolute blood pressure value associated with the relative blood pressure value is received. An absolute blood pressure value for the relative blood pressure value is determined based on the reference absolute blood pressure value and the relative blood pressure value.Type: GrantFiled: August 7, 2020Date of Patent: February 11, 2025Assignee: Apple Inc.Inventors: Erno H. Klaassen, Wren Nancy Dougherty, Richard C. Kimoto, Ravi K. Narasimhan, Thomas J. Sullivan, Stephen J. Waydo, Todd K. Whitehurst, Santiago Quijano, Derek Park-Shing Young, Zijing Zeng
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Patent number: 12203813Abstract: A camera attachment for measuring a temperature of a surface, and related methods of measuring the temperature of the surface, employ a temperature reactive material that is thermally coupled with the surface and imaged to provide image data of the temperature reactive material that is analyzed to measure the temperature. A camera attachment for measuring a temperature of a surface includes a distal surface configured to be thermally coupled with the surface, a frame configured to be coupled with a camera that has a field of view, and a temperature reactive material coupled with the frame and thermally coupled with the distal surface. The frame positions the temperature reactive material within the field of view of the camera so that an image captured by the camera includes at least a portion of the temperature reactive material.Type: GrantFiled: July 20, 2023Date of Patent: January 21, 2025Assignee: Apple Inc.Inventors: Joseph M. Schmitt, Pablo A. Escobar, Zijing Zeng
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Patent number: 12185630Abstract: A sleep monitor includes a layered sensor that includes at least one substrate layer that includes multiple laterally adjacent substrates. The substrate layer may be formed by interdigitating fingers of a first sheet with fingers of a second sheet. Combining multiple substrates in a single layer of a layered sensor may allow multiple materials and/or sensing mechanisms to be combined together in a single layer.Type: GrantFiled: July 15, 2020Date of Patent: December 31, 2024Assignee: Apple Inc.Inventors: Ali M. Amin, Yindar Chuo, Zijing Zeng
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Publication number: 20240091523Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: ApplicationFiled: November 10, 2023Publication date: March 21, 2024Inventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
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Patent number: 11918324Abstract: A pulse transit time is measured non-invasively and used to calculate a blood pressure value. A method of determining one or more blood pressure values includes propagating an alternating drive current through a thorax of a subject via electrodes located on a wrist-worn device. Resulting voltage levels of the subject are sensed by the wrist-worn device. The voltage levels are processed to detect when a volume of blood is ejected from the left ventricle. Output from a pulse arrival sensor coupled to the wrist-worn device is processed to detect when a blood pressure pulse generated by ejection of the volume of blood from the left ventricle arrives at the wrist. A pulse transit time (PTT) for transit of the blood pressure pulse from the left ventricle to the wrist is calculated. One or more blood pressure values for the subject are determined based on the PTT.Type: GrantFiled: August 11, 2020Date of Patent: March 5, 2024Assignee: Apple Inc.Inventors: Thomas J. Sullivan, Wren Nancy Dougherty, Richard C. Kimoto, Erno Klaassen, Ravi K. Narasimhan, Stephen J. Waydo, Todd K. Whitehurst, Derek Park-Shing Young, Santiago Quijano, Zijing Zeng
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Patent number: 11896136Abstract: An in-bed haptic device may include an array of actuation cells. Actuation cells of the array of actuation cells may be configured to actuate (e.g., expand, contract, or otherwise change shape) in a predetermined sequence to provide haptic outputs. The in-bed haptic device may be configured to be placed beneath a user during use, for example between a user and a mattress. The haptic outputs may be provided to help a user relax, to move and/or wake a user, to indicate outputs, alerts, or notifications at the in-bed haptic device or another electronic device, or the like.Type: GrantFiled: September 14, 2020Date of Patent: February 13, 2024Assignee: Apple Inc.Inventors: Riley E. Brandt, Linda Benavente-Notaro, Antonio Herrera, Denis Lin, Zijing Zeng, Erno H. Klaassen, Zhipeng Zhang
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Publication number: 20240019317Abstract: A camera attachment for measuring a temperature of a surface, and related methods of measuring the temperature of the surface, employ a temperature reactive material that is thermally coupled with the surface and imaged to provide image data of the temperature reactive material that is analyzed to measure the temperature. A camera attachment for measuring a temperature of a surface includes a distal surface configured to be thermally coupled with the surface, a frame configured to be coupled with a camera that has a field of view, and a temperature reactive material coupled with the frame and thermally coupled with the distal surface. The frame positions the temperature reactive material within the field of view of the camera so that an image captured by the camera includes at least a portion of the temperature reactive material.Type: ApplicationFiled: July 20, 2023Publication date: January 18, 2024Inventors: Joseph M. Schmitt, Pablo A. Escobar, Zijing Zeng
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Patent number: 11850413Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: May 11, 2022Date of Patent: December 26, 2023Assignee: TC1 LLCInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
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Patent number: 11839451Abstract: An interface pressure sensor includes a fluid pressure sensor disposed in a volume defined by a shear wall. The volume is enclosed, and the fluid pressure sensor is encapsulated by, an infill material. The infill material defines a sensing surface that, when pressed, can impart a force that is detectable by the fluid pressure sensor.Type: GrantFiled: September 23, 2020Date of Patent: December 12, 2023Assignee: Apple Inc.Inventors: Robert K. Montgomery, II, Chin San Han, Pablo A. Escobar, Zijing Zeng
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Patent number: 11839450Abstract: An interface pressure sensor includes a fluid pressure sensor disposed in a volume defined by a shear wall. The volume is enclosed, and the fluid pressure sensor is encapsulated by, an infill material. The infill material defines a sensing surface that, when pressed, can impart a force that is detectable by the fluid pressure sensor. The interface pressure sensor can be used for applanation tonometry.Type: GrantFiled: September 23, 2020Date of Patent: December 12, 2023Assignee: Apple Inc.Inventors: Robert K. Montgomery, II, Chin San Han, Pablo A. Escobar, Zijing Zeng
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Publication number: 20230389899Abstract: Embodiments are directed to systems and techniques for tracking menstrual cycles, which can include receiving temperature measurements from an array of temperature sensors positioned on a bed. A use period for the array can be determined when temperature measurements from at least one temperature sensor of the one or more temperature sensors exceed a first temperature threshold. In some embodiments, for each use period in a set of two or more use periods, a temperature of the user using the set of temperatures from the respective use period can be determined. After determining the temperature of the user for each use period in the set of two or more use periods, at least one change in the temperature of the user between different use periods can be identified. An ovulation day of the user based on the at least one change in the temperature of the user can be estimated.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Inventors: James C. Clements, Erno H. Klaassen, Habib S. Karaki, Joseph M. Schmitt, Zijing Zeng
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Patent number: 11771406Abstract: Embodiments are directed to systems and techniques for tracking menstrual cycles, which can include receiving temperature measurements from an array of temperature sensors positioned on a bed. A use period for the array can be determined when temperature measurements from at least one temperature sensor of the one or more temperature sensors exceed a first temperature threshold. In some embodiments, for each use period in a set of two or more use periods, a temperature of the user using the set of temperatures from the respective use period can be determined. After determining the temperature of the user for each use period in the set of two or more use periods, at least one change in the temperature of the user between different use periods can be identified. An ovulation day of the user based on the at least one change in the temperature of the user can be estimated.Type: GrantFiled: August 12, 2020Date of Patent: October 3, 2023Assignee: Apple Inc.Inventors: James C. Clements, Erno H. Klaassen, Habib S. Karaki, Joseph M. Schmitt, Zijing Zeng
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Patent number: 11747218Abstract: A camera attachment for measuring a temperature of a surface, and related methods of measuring the temperature of the surface, employ a temperature reactive material that is thermally coupled with the surface and imaged to provide image data of the temperature reactive material that is analyzed to measure the temperature. A camera attachment for measuring a temperature of a surface includes a distal surface configured to be thermally coupled with the surface, a frame configured to be coupled with a camera that has a field of view, and a temperature reactive material coupled with the frame and thermally coupled with the distal surface. The frame positions the temperature reactive material within the field of view of the camera so that an image captured by the camera includes at least a portion of the temperature reactive material.Type: GrantFiled: January 8, 2021Date of Patent: September 5, 2023Assignee: Apple Inc.Inventors: Joseph M. Schmitt, Pablo A. Escobar, Zijing Zeng
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Patent number: 11635334Abstract: Embodiments described herein are directed to a temperature measurement device that includes a sensor body configured to be placed on a skin of a user. The temperature measurement device can include a first section defining a first lower surface and having a first thickness, a second section defining a second lower surface and having a second thickness, and a channel separating the first lower surface from the second lower surface. The temperature measurement device can also include a first set of temperature sensors positioned across the first thickness, a second set of temperature sensors positioned across the second thickness, and a processor configured to estimate a tissue temperature of the user based on comparing temperature signals from the first set of temperature sensors with temperature signals from the second set of temperature sensors.Type: GrantFiled: June 30, 2020Date of Patent: April 25, 2023Assignee: Apple Inc.Inventors: Helia Rahmani, Anthony D. Minervini, Wanfeng Huang, James C. Clements, Jiandong Yu, Zijing Zeng, Charley T. Ogata
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Publication number: 20220409095Abstract: A sensor system may have a force sensor formed from a piezoelectric film. The piezoelectric film may comprise a number of tuned microstructures that are configured to resonate at a particular frequency. In accordance with the tuning of the microstructures, frequency signals corresponding to the microstructure resonance may be mechanically amplified before being processed by associated processing electronics. The processing electronics may be configured to identify a type of biological vibration detected by the force sensor.Type: ApplicationFiled: June 23, 2021Publication date: December 29, 2022Inventors: Yindar Chuo, Zijing Zeng
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Publication number: 20220280770Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: ApplicationFiled: May 11, 2022Publication date: September 8, 2022Inventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
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Patent number: 11357967Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: October 29, 2020Date of Patent: June 14, 2022Assignee: TC1 LLCInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
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Patent number: 11311712Abstract: An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.Type: GrantFiled: October 29, 2020Date of Patent: April 26, 2022Assignee: TC1 LLCInventors: Zijing Zeng, Phyllis Yuen, Michael R. Butler
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Publication number: 20220091569Abstract: An interface pressure sensor includes a fluid pressure sensor disposed in a volume defined by a shear wall. The volume is enclosed, and the fluid pressure sensor is encapsulated by, an infill material. The infill material defines a sensing surface that, when pressed, can impart a force that is detectable by the fluid pressure sensor.Type: ApplicationFiled: September 23, 2020Publication date: March 24, 2022Inventors: Robert K. Montgomery II, Chin San Han, Pablo A. Escobar, Zijing Zeng
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Publication number: 20220087545Abstract: Embodiments are directed to a blood pressure measurement device that includes a cuff configured to wrap around a limb of a user when the cuff is worn by the user, a bladder coupled to the cuff and configured to compress the limb when inflated, and a pump operative to inflate the bladder. The blood pressure measurement device can also include a valve positioned between the bladder and the pump and configured to operate in a first state that allows air from the pump to enter the bladder and prevent air from leaving the bladder. The valve can also be configured to operate in a second state that allows air to leave the bladder. The blood pressure measurement device can also include a vent positioned between the bladder and an external environment and configured to continuously release air from the bladder.Type: ApplicationFiled: August 10, 2021Publication date: March 24, 2022Inventors: Pranay Jain, Joseph R. Lee, William S. Lee, Zijing Zeng