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: 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: 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: 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: 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: 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: 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
  • Publication number: 20130179273
    Abstract: A communication system, apparatus and method thereof are provided. The system includes a connection processing server, an advertisement server, and a communication apparatus. The communication apparatus, which is connected to the connection processing server and the advertisement server, transmits an advertisement request to the advertisement server and receives an advertisement information from the advertisement server, wherein the advertisement information includes an advertisement list and a plurality of advertisement contents corresponding to the advertisement list. When the communication apparatus displays the advertisement list and an operating signal is received by the communication apparatus, the communication apparatus displays one of the advertisement contents corresponding to the operating signal, and transmits a view-ad request to the advertisement server.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 11, 2013
    Applicant: CONNECTION PORTAL, INC.
    Inventor: Chris Chang
  • Patent number: 8293335
    Abstract: Yttria-coated ceramic components of semiconductor material processing apparatuses include a substrate and at least one yttria-containing coating on the substrate. The components are made by applying a first yttria-containing coating on a ceramic substrate, which can be a green body of the ceramic material. The coated green body is sintered. The first yttria-containing coating can be treated to remove attached yttria particles resulting from the sintering. In another embodiment, a second yttria-containing coating can be thermally sprayed on the first yttria-containing coating to cover the particles.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: October 23, 2012
    Assignee: Lam Research Corporation
    Inventor: Chris Chang
  • Patent number: 8036777
    Abstract: The present invention relates to a room atmosphere creating system having a microprocessor electrically connected to a sensing circuit, a storage memory, and a distributing unit. The distributing unit is connected to an atmosphere circuit. The microprocessor transmits the room atmosphere conditions in the storage memory to the atmosphere circuit via the distributing unit. The room atmosphere conditions controlled by the atmosphere circuit are divided into audio condition, light condition, and temperature condition. The light device, temperature device, and audio device generate corresponding room atmosphere effects to synchronously control the light, temperature, and audio effects in accordance with the room atmosphere mode set by the user, and in cooperation with the wireless circuit for receiving the room atmosphere conditions transmitted by the wireless remote control, remote controlling of the room atmosphere conditions is able to be achieved.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 11, 2011
    Assignee: Qlifeplus Co.
    Inventor: Chris Chang
  • Patent number: 7969102
    Abstract: An interactive LED lighting system for entertainment and a network thereof comprise a plurality of LED light controllers being capable of connecting with a wireless operating end, a plurality of kinetic energy sensors or wireless remote controls for receiving commands output by the wireless operating end, the kinetic energy sensors or the wireless remote controls so as to generate RGB signals and in turn make LED lamps connected with the LED light controllers change colors they emit.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 28, 2011
    Inventor: Chris Chang
  • Patent number: 7855658
    Abstract: Provided is a method for controlling light, including retrieving accelerations along an X-axis, a Y-axis, and a Z-axis with a 3-axis accelerometer sensor; matching the retrieved accelerations with RGB values; and transforming the RGB values and displaying a color of the transformed RGB values. The 3-axis accelerometer sensor retrieves the accelerations Ax, Ay, and Az along the X-axis, the Y-axis, and the Z-axis and calculates a velocity Vi along the X-axis, the Y-axis, and the Z-axis using the accelerations Ax, Ay, and Az, with i denoting directions x, y, and z, Vi=Vio+Ait expressing a terminal velocity in the direction i, Vio denoting an initial velocity in the direction i, Ai denoting the acceleration in the direction i, and t denoting time, thereby allowing variation of brightness to be controlled in eight modes.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: December 21, 2010
    Inventor: Chris Chang
  • Publication number: 20090206773
    Abstract: An interactive LED lighting system for entertainment and a network thereof comprise a plurality of LED light controllers being capable of connecting with a wireless operating end, a plurality of kinetic energy sensors or wireless remote controls for receiving commands output by the wireless operating end, the kinetic energy sensors or the wireless remote controls so as to generate RGB signals and in turn make LED lamps connected with the LED light controllers change colors they emit.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 20, 2009
    Inventor: Chris Chang
  • Publication number: 20090044625
    Abstract: Provided is a method for controlling light, including retrieving accelerations along an X-axis, a Y-axis, and a Z-axis with a 3-axis accelerometer sensor; matching the retrieved accelerations with RGB values; and transforming the RGB values and displaying a color of the transformed RGB values. The 3-axis accelerometer sensor retrieves the accelerations Ax, Ay, and Az along the X-axis, the Y-axis, and the Z-axis and calculates a velocity Vi along the X-axis, the Y-axis, and the Z-axis using the accelerations Ax, Ay, and Az, with i denoting directions x, y, and z, Vi=Vio+Ait expressing a terminal velocity in the direction i, Vio denoting an initial velocity in the direction i, Ai denoting the acceleration in the direction i, and t denoting time, thereby allowing variation of brightness to be controlled in eight modes.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 19, 2009
    Inventor: Chris Chang
  • Publication number: 20080177402
    Abstract: The present invention relates to a room atmosphere creating system having a microprocessor electrically connected to a sensing circuit, a storage memory, and a distributing unit. The distributing unit is connected to an atmosphere circuit. The microprocessor transmits the room atmosphere conditions in the storage memory to the atmosphere circuit via the distributing unit. The room atmosphere conditions controlled by the atmosphere circuit are divided into audio condition, light condition, and temperature condition. The light device, temperature device, and audio device generate corresponding room atmosphere effects to synchronously control the light, temperature, and audio effects in accordance with the room atmosphere mode set by the user, and in cooperation with the wireless circuit for receiving the room atmosphere conditions transmitted by the wireless remote control, remote controlling of the room atmosphere conditions is able to be achieved.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 24, 2008
    Applicant: Olifeplus Co.
    Inventor: Chris Chang
  • Publication number: 20070166477
    Abstract: Yttria-coated ceramic components of semiconductor material processing apparatuses include a substrate and at least one yttria-containing coating on the substrate. The components are made by applying a first yttria-containing coating on a ceramic substrate, which can be a green body of the ceramic material. The coated green body is sintered. The first yttria-containing coating can be treated to remove attached yttria particles resulting from the sintering. In another embodiment, a second yttria-containing coating can be thermally sprayed on the first yttria-containing coating to cover the particles.
    Type: Application
    Filed: March 8, 2007
    Publication date: July 19, 2007
    Applicant: Lam Research Corporation
    Inventor: Chris Chang