Patents by Inventor Wenyan Jia

Wenyan Jia 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).

  • Publication number: 20220240809
    Abstract: An energy harvesting device includes a housing (2), a moveable device (12) disposed within the housing and including a first surface including a first material (15) and a second surface including a second material (17), wherein the moveable device is operable to move to bring the first and second surfaces together and apart to cause contact and separation between the first and second materials, a first strap (4) attached to the housing, a second strap (6) coupled to the moveable device, wherein movement of the second strap causes operation of the moveable device, and electronic circuitry (20) structured to harvest energy from the electrical charge generated by the contact between the first and second materials.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PARESH VASANDANI, MINGUI SUN, WENYAN JIA
  • Patent number: 11337620
    Abstract: An energy harvesting device includes a housing (2), a moveable device (12) disposed within the housing and including a first surface including a first material (15) and a second surface including a second material (17), wherein the moveable device is operable to move to bring the first and second surfaces together and apart to cause contact and separation between the first and second materials, a first strap (4) attached to the housing, a second strap (6) coupled to the moveable device, wherein movement of the second strap causes operation of the moveable device, and electronic circuitry (20) structured to harvest energy from the electrical charge generated by the contact between the first and second materials.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 24, 2022
    Assignee: University of Pittsburgh—Of the Commonweallth System of Higher Education
    Inventors: Paresh Vasandani, Mingui Sun, Wenyan Jia
  • Patent number: 10900943
    Abstract: Electronic systems, devices and methods are provided to accurately record and analyze food intake and physical activity in a subject. A device is provided to be placed on a subject which records video using at least two video cameras positioned to record stereoscopic image pair, as well as other physiological and/or environmental data including, for example, oxygen saturation, heart rate, and environmental factors such as physical location, temperature, and humidity. Video data is analyzed along with other data obtained by the device to determine food consumption and/or physical activity of the subject, much of which is accomplished by automated computer-implemented processes.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 26, 2021
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: John Fernstrom, Madelyn Fernstrom, Wenyan Jia, Robert Sclabassi, Mingui Sun
  • Patent number: 10674930
    Abstract: Single-unit EEG sensors contain multiple closely spaced dry electrodes that can hook onto skin and associated electronic circuitry such as amplifiers, A/D convertors, wireless transmitters, and a power source such as a battery. The electrodes can be separated by about 20 mm or less, and the associated circuitry can be situated within a volume defined by the multiple electrodes. The single-unit sensors hook onto the skin using a tooth surface so that a rotation of the sensor secures and electrically connects the sensor to the skin.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 9, 2020
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Mingui Sun, Bo Luan, Parthasarathy Deenadayalan Thirumala, Wenyan Jia, Di Gao, Jeffrey Balzer
  • Publication number: 20190290164
    Abstract: An energy harvesting device includes a housing (2), a moveable device (12) disposed within the housing and including a first surface including a first material (15) and a second surface including a second material (17), wherein the moveable device is operable to move to bring the first and second surfaces together and apart to cause contact and separation between the first and second materials, a first strap (4) attached to the housing, a second strap (6) coupled to the moveable device, wherein movement of the second strap causes operation of the moveable device, and electronic circuitry (20) structured to harvest energy from the electrical charge generated by the contact between the first and second materials.
    Type: Application
    Filed: October 17, 2017
    Publication date: September 26, 2019
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PARESH VASANDANI, MINGUI SUN, WENYAN JIA
  • Publication number: 20180348187
    Abstract: Electronic systems, devices and methods are provided to accurately record and analyze food intake and physical activity in a subject. A device is provided to be placed on a subject which records video using at least two video cameras positioned to record stereoscopic image pair, as well as other physiological and/or environmental data including, for example, oxygen saturation, heart rate, and environmental factors such as physical location, temperature, and humidity. Video data is analyzed along with other data obtained by the device to determine food consumption and/or physical activity of the subject, much of which is accomplished by automated computer-implemented processes.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Inventors: John Fernstrom, Madelyn Fernstrom, Wenyan Jia, Robert Sclabassi, Mingui Sun
  • Patent number: 10006896
    Abstract: Electronic systems, devices and methods are provided to accurately record and analyze food intake and physical activity in a subject. A device is provided to be placed on a subject which records video using at least two video cameras positioned to record stereoscopic image pair, as well as other physiological and/or environmental data including, for example, oxygen saturation, heart rate, and environmental factors such as physical location, temperature, and humidity. Video data is analyzed along with other data obtained by the device to determine food consumption and/or physical activity of the subject, much of which is accomplished by automated computer-implemented processes.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 26, 2018
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: John Fernstrom, Madelyn Fernstrom, Wenyan Jia, Robert Sclabassi, Mingui Sun
  • Publication number: 20170135639
    Abstract: Electrodes providing excellent recording and physical stability. Electrodes are disclosed that may include a plurality of small teeth that possess a novel design shape and orientation. The shallow and relatively long teeth run parallel to the rim of the electrode that presses against the patient's skin. When the electrode is twisted onto skin, the tiny teeth penetrate the stratum corneum and move nearly horizontally under the stratum corneum, thus anchoring the electrode securely to the skin. The electrodes cause minimal discomfort to the patient since the small teeth do not extend to the pain fibers which are located in deeper layers of the skin. The electrodes may be fabricated in a variety of geometries including cylindrical, disk, and blunt bullet or top shapes. In some instances, the electrodes may be connected to detachable leads having magnetic properties.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 18, 2017
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Mingui Sun, Wenyan Jia, Robert Joseph Sclabassi
  • Publication number: 20170095176
    Abstract: Single-unit EEG sensors contain multiple closely spaced dry electrodes that can hook onto skin and associated electronic circuitry such as amplifiers, A/D convertors, wireless transmitters, and a power source such as a battery. The electrodes can be separated by about 20 mm or less, and the associated circuitry can be situated within a volume defined by the multiple electrodes. The single-unit sensors hook onto the skin using a tooth surface so that a rotation of the sensor secures and electrically connects the sensor to the skin.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 6, 2017
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Mingui Sun, Bo Luan, Parthasarathy Deenadayalan Thirumala, Wenyan Jia, Di Gao, Jeffrey Balzer
  • Patent number: 9504424
    Abstract: Electrodes providing excellent recording and physical stability. Electrodes are disclosed that may include a plurality of small teeth that possess a novel design shape and orientation. The shallow and relatively long teeth run parallel to the rim of the electrode that presses against the patient's skin. When the electrode is twisted onto skin, the tiny teeth penetrate the stratum corneum and move nearly horizontally under the stratum corneum, thus anchoring the electrode securely to the skin. The electrodes cause minimal discomfort to the patient since the small teeth do not extend to the pain fibers which are located in deeper layers of the skin. The electrodes may be fabricated in a variety of geometries including cylindrical, disk, and blunt bullet or top shapes. In some instances, the electrodes may be connected to detachable leads having magnetic properties.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: November 29, 2016
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Wenyan Jia, Mingui Sun, Robert Joseph Sclabassi
  • Publication number: 20150126846
    Abstract: Electrodes providing excellent recording and physical stability. Electrodes are disclosed that may include a plurality of small teeth that possess a novel design shape and orientation. The shallow and relatively long teeth run parallel to the rim of the electrode that presses against the patient's skin. When the electrode is twisted onto skin, the tiny teeth penetrate the stratum corneum and move nearly horizontally under the stratum corneum, thus anchoring the electrode securely to the skin. The electrodes cause minimal discomfort to the patient since the small teeth do not extend to the pain fibers which are located in deeper layers of the skin. The electrodes may be fabricated in a variety of geometries including cylindrical, disk, and blunt bullet or top shapes. In some instances, the electrodes may be connected to detachable leads having magnetic properties.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 7, 2015
    Applicant: University of Pittsburgh - of the Commonwealth System of Higher Education
    Inventors: Wenyan Jia, Mingui Sun, Robert Joseph Sclabassi
  • Patent number: 8957705
    Abstract: Described is an apparatus comprising: a first phase frequency detector (PFD) to determine a coarse phase difference between a first clock signal and a second clock signal, the first PFD to generate a first output indicating the coarse phase difference; and a second PFD, coupled to the first PFD, to determine a fine phase difference between the first clock signal and the second clock signal, the second PFD to generate a second output indicating the fine phase difference.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Intel Corporation
    Inventors: Wenyan Jia, Shenggao Li, Fulvio Spagna
  • Publication number: 20140077841
    Abstract: Described is an apparatus comprising: a first phase frequency detector (PFD) to determine a coarse phase difference between a first clock signal and a second clock signal, the first PFD to generate a first output indicating the coarse phase difference; and a second PFD, coupled to the first PFD, to determine a fine phase difference between the first clock signal and the second clock signal, the second PFD to generate a second output indicating the fine phase difference.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Inventors: Wenyan Jia, Shenggao Li, Fulvio Spagna
  • Publication number: 20130267794
    Abstract: Electronic systems, devices and methods are provided to accurately record and analyze food intake and physical activity in a subject. A device is provided to be placed on a subject which records video using at least two video cameras positioned to record stereoscopic image pair, as well as other physiological and/or environmental data including, for example, oxygen saturation, heart rate, and environmental factors such as physical location, temperature, and humidity. Video data is analyzed along with other data obtained by the device to determine food consumption and/or physical activity of the subject, much of which is accomplished by automated computer-implemented processes.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 10, 2013
    Inventors: John Fernstrom, Madelyn Fernstrom, Wenyan Jia, Robert Sclabassi, Mingui Sun
  • Patent number: 6633188
    Abstract: A flip-flop including a first stage and a second stage. The first stage receives a pair of differential signals to generate a set and reset signal. The complement of the set and reset signal generates output signals Q and {overscore (Q)}′. These signals have rising and falling transistors with the same delays for the Q signal and the {overscore (Q)} signal. The second stage has symmetrical pull-up and pull-down circuits.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: October 14, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Wenyan Jia, Borivoje Nikolic
  • Patent number: 6107853
    Abstract: A flip-flop including a first stage and a second stage. The first stage receives a pair of differential signals to generate a set and reset signal. The complement of the set and reset signal generates output signals Q and Q. These signals have equal rising and falling transitions with the same delays for the Q signal and the Q signal. The second stage has symmetrical pull-up and pull-down circuits.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: August 22, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Borivoje Nikolic, Wenyan Jia