Patents by Inventor Chris Chang

Chris Chang 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).

  • Patent number: 11275048
    Abstract: Among others, the present invention provides piezo-electric micro-devices for detecting at the microscopic level an electric, magnetic, electromagnetic, thermal, optical, acoustical, biological, chemical, physical, bio-chemical, bio-physical, physical-chemical, bio-physical-chemical, bio-mechanical, bio-electro-mechanical, electro-mechanical, or mechanical property of the biologic subject.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: March 15, 2022
    Assignee: AnPac Bio-Medical Science Co., Ltd.
    Inventors: Chris Chang Yu, Xuedong Du
  • Publication number: 20210364511
    Abstract: Among others, the present invention provides micro-devices for detecting or treating a disease, each comprising a first micro sensor for detecting a property of the biological sample at the microscopic level, and an interior wall defining a channel, wherein the micro sensor is located in the interior wall of the micro-device and detects the property of the biological sample in the microscopic level, and the biological sample is transported within the channel.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Inventors: Chris Chang Yu, Xuedong Du
  • Patent number: 11085923
    Abstract: Among others, the present invention provides micro-devices for detecting or treating a disease, each comprising a first micro sensor for detecting a property of the biological sample at the microscopic level, and an interior wall defining a channel, wherein the micro sensor is located in the interior wall of the micro-device and detects the property of the biological sample in the microscopic level, and the biological sample is transported within the channel.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 10, 2021
    Assignee: ANPAC BIO-MEDICAL SCIENCE CO., LTD
    Inventors: Chris Chang Yu, Xuedong Du
  • Patent number: 10908650
    Abstract: A mobile computing system includes a case and a frame installed into the case. The components of the mobile computing system are affixed to the frame. The frame includes a first section and a second section. The first section is flexibly coupled to the second section by at least one first flexible joint and is not otherwise rigidly coupled to the second section. The frame is fabricated as a single molded piece.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 2, 2021
    Assignee: Dell Products, L.P.
    Inventors: Chris Chang, Bruce Hw Chen, Rick Wu, Maggie Mei-Chih Wu, Chen Yu Hsu, Yue Hui Jiang
  • Patent number: 10690613
    Abstract: Among others, the present invention provides piezo-electric micro-devices for detecting at the microscopic level an electric, magnetic, electromagnetic, thermal, optical, acoustical, biological, chemical, physical, bio-chemical, bio-physical, physical-chemical, bio-physical-chemical, bio-mechanical, bio-electro-mechanical, electro-mechanical, or mechanical property of the biologic subject.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: June 23, 2020
    Assignee: AnPac Bio-Medical Science Co., Ltd.
    Inventors: Chris Chang Yu, Xuedong Du
  • Patent number: 10682095
    Abstract: A method of monitoring a health status of a patient using a monitoring system comprising a pair of finger ring electrocardiogram (ECG) monitors. Each finger ring monitor comprises an inner ring member and an outer ring member positioned radially outward from and operably connected to the inner ring member. The inner ring member of each monitor features a conductor characterized by at least one physiological-type sensor, and an annular bladder that defines an adjustable aperture sized to receive a left-hand finger of a patient and a right-hand finger of the patient, respectively. Upon triggering by positioning the pair of finger ring ECG monitors substantially together, the conductors of each of the finger ring ECG monitors are configured to receive biopotential signals from skin on the fingers of the patient.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: June 16, 2020
    Assignee: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville, Anthony Balda
  • Patent number: 10271727
    Abstract: A system for monitoring cardiac health of a user including a local sensing subsystem, a contactless interrogation subsystem, and a remote monitoring subsystem. The local sensing subsystem may include a sensor patch configured to attach to the user and include a substrate, a passive radio-frequency identification transponder, and a first antenna. The contactless interrogation subsystem may include an interrogator separated from the sensor patch, which may include a second antenna, a demodulator, and a communications link. The remote monitoring subsystem may include a computing system comprising a processor for executing instructions. The local sensing subsystem may be adapted to perform at least one scan. The contactless interrogation subsystem may be adapted to operate the demodulator to receive a cardiac event and to operate the communications link to transmit the cardiac event. The remote monitoring subsystem may be adapted to execute the instructions to detect an arrhythmia from the cardiac reading.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: April 30, 2019
    Assignee: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville
  • Patent number: 10264969
    Abstract: A method of operating a wireless ECG sensor system may include (1) wirelessly transmitting, using a second antenna, electromagnetic radiation having a frequency equal to the resonant frequency of a first antenna of a sensor patch; (2) inductively receiving, using the first antenna, power for operating a passive RFID transponder of the sensor patch; and (3) operating the microcontroller of the sensor patch to perform at least one scan, wherein performing the at least one scan is defined as: (a) receiving a cardiac activity signal from at least one of the positive and negative electrodes of the sensor patch, (b) retrieving a location identifier from the storage medium of the sensor patch, and (c) operating the load modulation switch of the sensor patch to alter a voltage amplitude of the electromagnetic radiation to transmit to a demodulator a cardiac event reading comprising the cardiac activity signal and the location identifier.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: April 23, 2019
    Assignee: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville
  • Patent number: 10098544
    Abstract: A wireless ECG sensor system includes a sensor patch configured to attach to a user. The sensor patch may include a substrate having a positive and a negative electrode, and a passive radio-frequency identification (RFID) transponder carried by the substrate. The RFID may include a first antenna, a non-transitory and non-volatile storage medium in electrical communication with the first antenna, a load modulation switch in electrical communication with the first antenna, and a microcontroller in electrical communication with the first antenna and in data communication with both the storage medium and the load modulation switch. The system may also include an interrogator device having a second antenna configured to wirelessly transmit electromagnetic radiation having a resonant frequency of the first antenna of the sensor patch, and a demodulator configured to measure a voltage amplitude of the electromagnetic radiation wirelessly transmitted by the second antenna.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: October 16, 2018
    Assignee: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville
  • Publication number: 20180110467
    Abstract: A method of monitoring a health status of a patient using a monitoring system comprising a pair of finger ring electrocardiogram (ECG) monitors. The monitoring system also includes at least one electronic component comprising a system on a chip (SoC) that features a data store and a processor. Biopotential signals from the left-hand finger of the patient (a first reading) and biopotential signals from the right-hand finger of the patient (a second reading) are received by the conductors of the respective ECG monitors, and correlated by detecting and removing signal latency between the first reading and the second reading. Analysis instructions executed by at least one of the respective processors of the ECG monitors identify a physiological condition of the patient from the correlated reading.
    Type: Application
    Filed: January 27, 2016
    Publication date: April 26, 2018
    Applicant: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskervllle, Anthony Balda
  • Publication number: 20180098697
    Abstract: A method of operating a wireless ECG sensor system may include (1) wirelessly transmitting, using a second antenna, electromagnetic radiation having a frequency equal to the resonant frequency of a first antenna of a sensor patch; (2) inductively receiving, using the first antenna, power for operating a passive RFID transponder of the sensor patch; and (3) operating the microcontroller of the sensor patch to perform at least one scan, wherein performing the at least one scan is defined as: (a) receiving a cardiac activity signal from at least one of the positive and negative electrodes of the sensor patch, (b) retrieving a location identifier from the storage medium of the sensor patch, and (c) operating the load modulation switch of the sensor patch to alter a voltage amplitude of the electromagnetic radiation to transmit to a demodulator a cardiac event reading comprising the cardiac activity signal and the location identifier.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 12, 2018
    Applicant: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville
  • Publication number: 20180098698
    Abstract: A system for monitoring cardiac health of a user including a local sensing subsystem, a contactless interrogation subsystem, and a remote monitoring subsystem. The local sensing subsystem may include a sensor patch configured to attach to the user and include a substrate, a passive radio-frequency identification transponder, and a first antenna. The contactless interrogation subsystem may include an interrogator separated from the sensor patch, which may include a second antenna, a demodulator, and a communications link. The remote monitoring subsystem may include a computing system comprising a processor for executing instructions. The local sensing subsystem may be adapted to perform at least one scan. The contactless interrogation subsystem may be adapted to operate the demodulator to receive a cardiac event and to operate the communications link to transmit the cardiac event. The remote monitoring subsystem may be adapted to execute the instructions to detect an arrhythmia from the cardiac reading.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 12, 2018
    Applicant: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville
  • Publication number: 20180088068
    Abstract: Among others, the present invention provides piezo-electric micro-devices for detecting at the microscopic level an electric, magnetic, electromagnetic, thermal, optical, acoustical, biological, chemical, physical, bio-chemical, bio-physical, physical-chemical, bio-physical-chemical, bio-mechanical, bio-electro-mechanical, electro-mechanical, or mechanical property of the biologic subject.
    Type: Application
    Filed: August 21, 2017
    Publication date: March 29, 2018
    Inventors: Chris Chang Yu, Xuedong Du
  • Publication number: 20180020980
    Abstract: A finger ring health status monitoring device comprising an inner ring member and an outer ring member positioned radially outward from and operably connected to the inner ring member. The inner ring member features a conductor characterized by at least one physiological-type sensor, and an annular bladder that defines an adjustable aperture sized to receive a finger of a patient. Adjustment of the aperture is accomplished by rotating the outer ring member in a first direction about an axis of rotation common to the outer ring member and to the inner ring member, thereby causing the bladder to expand radially inward so as to reduce an inside diameter of the aperture. Rotating the outer ring member in a second direction opposite the first direction causes the bladder to contract, thus increasing the inside diameter of the aperture.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 25, 2018
    Applicant: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville, Anthony Balda
  • Publication number: 20180014782
    Abstract: A method of monitoring a health status of a patient using a monitoring system comprising a pair of finger ring electrocardiogram (ECG) monitors. Each finger ring monitor comprises an inner ring member and an outer ring member positioned radially outward from and operably connected to the inner ring member. The inner ring member of each monitor features a conductor characterized by at least one physiological-type sensor, and an annular bladder that defines an adjustable aperture sized to receive a left-hand finger of a patient and a right-hand finger of the patient, respectively. Upon triggering by positioning the pair of finger ring ECG monitors substantially together, the conductors of each of the finger ring ECG monitors are configured to receive biopotential signals from skin on the fingers of the patient.
    Type: Application
    Filed: January 27, 2016
    Publication date: January 18, 2018
    Applicant: Medicomp, Inc.
    Inventors: Sean MARCUS, Chris CHANG, Scott BASKERVILLE, Anthony BALDA
  • Publication number: 20170370869
    Abstract: Among others, the present invention provides piezo-electric micro-devices for detecting at the microscopic level an electric, magnetic, electromagnetic, thermal, optical, acoustical, biological, chemical, physical, bio-chemical, bio-physical, physical-chemical, bio-physical-chemical, bio-mechanical, bio-electro-mechanical, electro-mechanical, or mechanical property of the biologic subject.
    Type: Application
    Filed: August 18, 2017
    Publication date: December 28, 2017
    Inventors: Chris Chang Yu, Xuedong Du
  • Patent number: 9823209
    Abstract: Among others, the present invention provides piezo-electric micro-devices for detecting at the microscopic level an electric, magnetic, electromagnetic, thermal, optical, acoustical, biological, chemical, physical, bio-chemical, bio-physical, physical-chemical, bio-physical-chemical, bio-mechanical, bio-electro-mechanical, electro-mechanical, or mechanical property of the biologic subject.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: November 21, 2017
    Assignee: AnPac Bio-Medical Science Co., Ltd.
    Inventors: Chris Chang Yu, Xuedong Du
  • Publication number: 20170248577
    Abstract: Among others, the present invention provides micro-devices for detecting or treating a disease, each comprising a first micro sensor for detecting a property of the biological sample at the microscopic level, and an interior wall defining a channel, wherein the micro sensor is located in the interior wall of the micro-device and detects the property of the biological sample in the microscopic level, and the biological sample is transported within the channel
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Chris Chang Yu, Xuedong Du
  • Patent number: 9651542
    Abstract: Among others, the present invention provides micro-devices for detecting or treating a disease, each comprising a first micro sensor for detecting a property of the biological sample at the microscopic level, and an interior wall defining a channel, wherein the micro sensor is located in the interior wall of the micro-device and detects the property of the biological sample in the microscopic level, and the biological sample is transported within the channel.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 16, 2017
    Assignee: Anpac Bio-Medical Science Co., Ltd
    Inventors: Chris Chang Yu, Xuedong Du
  • Publication number: 20160262619
    Abstract: A wireless ECG sensor system includes a sensor patch configured to attach to a user. The sensor patch may include a substrate having a positive and a negative electrode, and a passive radio-frequency identification (RFID) transponder carried by the substrate. The RFID may include a first antenna, a non-transitory and non-volatile storage medium in, electrical communication with the first antenna, a load modulation switch in electrical communication with the first antenna, and a microcontroller in electrical communication with the first antenna and in data communication with both the storage medium and the load modulation switch. The system may also include an interrogator device having a second antenna configured to wirelessly transmit electromagnetic radiation having a resonant frequency of the first antenna of the sensor patch, and a demodulator configured to measure a voltage amplitude of the electromagnetic radiation wirelessly transmitted by the second antenna.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 15, 2016
    Applicant: Medicomp, Inc.
    Inventors: Sean Marcus, Chris Chang, Scott Baskerville