Patents by Inventor Sung Q Lee

Sung Q Lee 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: 20190336070
    Abstract: The circuit may include bio-stimulating signal generating circuit which generates a bio-stimulating signal in a bio-stimulating mode, a bio-signal electrode which delivers the bio-stimulating signal generated in the bio-stimulating mode and receives a bio-signal in a bio-signal measuring mode, a switch block which is turned on when a voltage of the bio-stimulating signal is greater than a first reference voltage which is greater than a second reference voltage or lower than the second reference voltage, first and second resistors, and a bio-signal measuring circuit which measures voltage signals divided by the first and second resistors or measures a signal of the bio-signal electrode according to whether the switch block is turned on. The first and second resistors may be serially connected between the bio-signal electrode and the switch block, and divide a voltage of a signal of the bio-signal electrode when the switch block is turned on.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: WooSub YOUM, Sung Q LEE, Gunn HWANG
  • Patent number: 10452143
    Abstract: A device and method is described for electronic human prosthetics, and specifically a skull- and/or spine implantable bi-directional neural-communication/brain-machine interface (BBMI) device where the input, output and on-board computing are combined into a single unit to form a compact neuro-prosthetics device. This invention is also directed to a fully implantable wireless spinal electronic recording and stimulation system using the BBMI in a human. The bi-directional devices (BBMIs) communicate with other bi-directional brain-machine interface devices (BBMI) and/or with external controllers wirelessly. The compact implantable stimulator has ultrasonic secondary battery charging system. One or more BBMI can be wirelessly connected so that a closed loop of BBMIs, or a BBMI and an external controller, can wirelessly send trigger pulses to this fully implanted stimulator over the spinal cord.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 22, 2019
    Assignees: San Diego State University Research Foundation, Electronics and Telecommunication Research Institute
    Inventors: Kee S. Moon, Yusuf Ozturk, Sung Q. Lee, Woosub Youm, Gunn Hwang
  • Publication number: 20190293746
    Abstract: Provided is an electronic device including a first microphone array including a plurality of microphones configured to generate first signals related to a first sound in response to the first sound from a sound source, and a processor configured to generate a first result related to a first direction to the sound source from a first reference position among first positions at which the first sound is received by the plurality of microphones based on second signals corresponding to a second sound received from the sound source at second positions separated from the first positions and the first signals, and generate a second result related to a distance to the sound source based on information on a second direction from a second reference position among the second positions to the sound source and the first result.
    Type: Application
    Filed: January 31, 2019
    Publication date: September 26, 2019
    Applicant: ELECTRONICS AND TELECOMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Q LEE, Kang-Ho PARK, Yi-Gyeong KIM
  • Patent number: 10390756
    Abstract: The circuit may include bio-stimulating signal generating circuit which generates a bio-stimulating signal in a bio-stimulating mode, a bio-signal electrode which delivers the bio-stimulating signal generated in the bio-stimulating mode and receives a bio-signal in a bio-signal measuring mode, a switch block which is turned on when a voltage of the bio-stimulating signal is greater than a first reference voltage which is greater than a second reference voltage or lower than the second reference voltage, first and second resistors, and a bio-signal measuring circuit which measures voltage signals divided by the first and second resistors or measures a signal of the bio-signal electrode according to whether the switch block is turned on. The first and second resistors may be serially connected between the bio-signal electrode and the switch block, and divide a voltage of a signal of the bio-signal electrode when the switch block is turned on.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 27, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: WooSub Youm, Sung Q Lee, Gunn Hwang
  • Publication number: 20190015005
    Abstract: A device and method is described for electronic human prosthetics, and specifically a body-machine interface (BMI) device where the input, output and on-board computing are combined into a single unit to form a compact ECG, respiratory sensing, temperature-sensing-prosthetics device. The devices (BMIs) can also communicate with other body-machine interface devices (BMI) and/or with external controllers wirelessly. The compact device has ultrasonic battery charging system. One or more BMI can be wirelessly connected so that a closed loop of BMIs, or a BMI and an external controller, can wirelessly send trigger pulses to the stimulator over the heart, glossopharyngeal nerve(s) or diaphragm.
    Type: Application
    Filed: July 14, 2018
    Publication date: January 17, 2019
    Applicants: San Diego State University Research Foundation, Electronic and Telecommunication Research Institute
    Inventors: Kee S. MOON, Sung Q. LEE, Woosub YOUM
  • Patent number: 10113928
    Abstract: Provided is a pressure sensor including a substrate having a cavity therein, a partition wall disposed in the substrate to surround the cavity, a substrate insulation layer disposed on the top surface of the substrate to cover the cavity, a sensing unit disposed on the substrate insulation layer, and an encapsulation layer disposed on the substrate insulation layer to cover the sensing unit. The cavity may extend from a top surface toward a bottom surface of the substrate, the partition wall may have an inner sidewall exposed by the cavity, and at least a portion of the sensing unit may overlap the cavity when viewed in a plan view.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: October 30, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chang Han Je, Woo Seok Yang, Sung Q Lee, Chang Auck Choi
  • Patent number: 10078069
    Abstract: The inventive concept relates to a device that detects a leak of a liquid leaked from a sinkhole, water pipe or oil pipeline under the ground. In the detection device of the inventive concept, a plurality of reception devices disposed on the surface of the earth simultaneously receive an ultrasonic signal transmitted from a transmission device under the ground and a radio frequency (RF) signal synchronized with the ultrasonic signal. Also, by measuring an arrival time of the ultrasonic signal by using the wireless signal received by each reception device as a triggering signal, a leak range of a liquid leaked from a sinkhole, water pipe or oil pipeline on a signal path between the transmission device and the reception device is detected.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 18, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gunn Hwang, Sung Q Lee, WooSub Youm
  • Patent number: 10008888
    Abstract: Provided is a wireless power transmission system. The wireless power transmission system includes a power supply unit generating amplified power; a wireless power transmission unit receiving and converting the amplified power into wireless power; a wireless power reception unit receiving and converting the wireless power into charging power; and a charging unit receiving the charging power, wherein the charging unit includes a battery to store the charging power and the power supply unit includes a power detection unit identifies the charged state of the battery based on the amplified voltage and amplified current of the amplified power.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 26, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: WooSub Youm, Sung Q Lee, Gunn Hwang
  • Publication number: 20170241853
    Abstract: Provided is a pressure sensor including a substrate having a cavity therein, a partition wall disposed in the substrate to surround the cavity, a substrate insulation layer disposed on the top surface of the substrate to cover the cavity, a sensing unit disposed on the substrate insulation layer, and an encapsulation layer disposed on the substrate insulation layer to cover the sensing unit. The cavity may extend from a top surface toward a bottom surface of the substrate, the partition wall may have an inner sidewall exposed by the cavity, and at least a portion of the sensing unit may overlap the cavity when viewed in a plan view.
    Type: Application
    Filed: August 11, 2016
    Publication date: August 24, 2017
    Inventors: Chang Han JE, Woo Seok YANG, Sung Q LEE, Chang Auck CHOI
  • Publication number: 20170238865
    Abstract: The circuit may include bio-stimulating signal generating circuit which generates a bio-stimulating signal in a bio-stimulating mode, a bio-signal electrode which delivers the bio-stimulating signal generated in the bio-stimulating mode and receives a bio-signal in a bio-signal measuring mode, a switch block which is turned on when a voltage of the bio-stimulating signal is greater than a first reference voltage which is greater than a second reference voltage or lower than the second reference voltage, first and second resistors, and a bio-signal measuring circuit which measures voltage signals divided by the first and second resistors or measures a signal of the bio-signal electrode according to whether the switch block is turned on. The first and second resistors may be serially connected between the bio-signal electrode and the switch block, and divide a voltage of a signal of the bio-signal electrode when the switch block is turned on.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 24, 2017
    Inventors: WooSub YOUM, Sung Q LEE, Gunn HWANG
  • Publication number: 20170108926
    Abstract: A device and method is described for electronic human prosthetics, and specifically a skull- and/or spine implantable bi-directional neural-communication/brain-machine interface (BBMI) device where the input, output and on-board computing are combined into a single unit to form a compact neuro-prosthetics device. This invention is also directed to a fully implantable wireless spinal electronic recording and stimulation system using the BBMI in a human. The bi-directional devices (BBMIs) communicate with other bi-directional brain-machine interface devices (BBMI) and/or with external controllers wirelessly. The compact implantable stimulator has ultrasonic secondary battery charging system. One or more BBMI can be wirelessly connected so that a closed loop of BBMIs, or a BBMI and an external controller, can wirelessly send trigger pulses to this fully implanted stimulator over the spinal cord.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Inventors: Kee S. Moon, Yusuf Ozturk, Sung Q. Lee, Woosub Youm, Gunn Hwang
  • Patent number: 9613508
    Abstract: Provided is a security monitoring method including outputting a multi-tone sound wave configured with a linear sum of sine waves having a plurality of frequency components inside a security monitoring space, receiving the multi-tone sound wave and calculating a sound field, calculating and storing sound field information according to frequency through the sound field, comparing reference sound field information according to frequency with the currently measured sound field information and determining whether a sound field variation occurs, and analyzing whether the sound field variation occurs collected for a certain predetermined period and distinguishing at least two events among intrusion, motion and temperature variation situations on the basis of correlation between the reference sound field spectrum and consecutive sound field spectra.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 4, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kang-Ho Park, Sung Q Lee
  • Patent number: 9594163
    Abstract: Provided is a security surveillance system and method capable of separately detecting fire and intrusion situations on the basis of a sound field variation, including a sound generating device outputting, into a set security surveillance space, a multi-tone sound wave formed of a linear sum of sine waves having a plurality of frequency components, a sound receiving device obtaining sound field information for each frequency represented as sound pressure and a phase from a sound wave received in the security surveillance space, and a sound field signal processing device storing sound field information for each frequency obtained from the sound receiving device in a preparation mode, comparing the stored sound field information with current sound field information for each frequency output from the sound receiving device in a surveillance mode, and determining occurrence of a security situation.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 14, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kang-Ho Park, Sung Q Lee
  • Publication number: 20170016797
    Abstract: A gas monitoring apparatus according to the inventive concept includes a sound generator, a sound receiver, and a sound field signal processor. The sound generator continuously outputs a sound signal into a gas monitoring space. The sound receiver receives a sound signal reflected from the gas monitoring space. The sound field signal processor obtains sound field information on the received sound signal, calculates a sound field spectrum for the sound field information, uses a correlation between the calculated sound field spectrum and a reference sound field spectrum, and determines whether there are gas leak and mixing in the gas monitoring space, wherein the reference sound field spectrum is a sound field spectrum according to frequency measured in a case where a gas is not leaked in the gas monitoring space, and the sound signal is formed by a linear sum of sine waves that have a plurality of frequency components.
    Type: Application
    Filed: May 16, 2016
    Publication date: January 19, 2017
    Inventors: Kang-Ho PARK, Sung Q LEE
  • Patent number: 9362783
    Abstract: Provided is a wireless power transmission apparatus. The apparatus includes an ultrasound transmitter generating an ultrasound signal in response to an external source voltage and transmitting the generated ultrasound signal to a medium layer and an ultrasound receiver receiving the ultrasound signal through the medium layer and converting the received ultrasound signal into a driving voltage. The ultrasound transmitter and receiver are manufactured to control impedance values thereof to be matched with each other and a distance between the ultrasound transmitter and receiver is controlled according to predetermined distance conditions.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 7, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Q Lee, Gunn Hwang, WooSub Youm
  • Publication number: 20160146760
    Abstract: The inventive concept relates to a device that detects a leak of a liquid leaked from a sinkhole, water pipe or oil pipeline under the ground. In the detection device of the inventive concept, a plurality of reception devices disposed on the surface of the earth simultaneously receive an ultrasonic signal transmitted from a transmission device under the ground and a radio frequency (RF) signal synchronized with the ultrasonic signal. Also, by measuring an arrival time of the ultrasonic signal by using the wireless signal received by each reception device as a triggering signal, a leak range of a liquid leaked from a sinkhole, water pipe or oil pipeline on a signal path between the transmission device and the reception device is detected.
    Type: Application
    Filed: November 23, 2015
    Publication date: May 26, 2016
    Inventors: Gunn HWANG, Sung Q LEE, WooSub YOUM
  • Patent number: 9240113
    Abstract: Disclosed are a method for measuring a acoustic transfer function of a predetermined space to be secured or monitored through a correlation between sound signals acquired from a sound source generating device and a sound measuring device and a method and a system for judging whether there is an intrusion object by using a difference between an initially set acoustic transfer function information and varied acoustic transfer function information by using the method for measuring the transfer function. In the present disclosure, when an object moves or an intrusion object is generated in a predetermined space, intrusion or no intrusion is monitored by variation of the acoustic transfer function varied by the intrusion object even though there is no noise generated by the intrusion object.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: January 19, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Q Lee, Kang-Ho Park
  • Patent number: 9240688
    Abstract: Disclosed are ultrasonic wireless power transmitter and receiver apparatuses, and a method for wireless charging thereof.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: January 19, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gunn Hwang, Sung Q Lee, Woo Seok Yang, JongDae Kim
  • Patent number: 9219971
    Abstract: A method of manufacturing a piezoelectric speaker comprises forming a piezoelectric thin film and then forming an upper electrode and a lower electrode on and beneath the piezoelectric thin film, respectively, forming a damping material layer for attachment of the piezoelectric thin film below the piezoelectric thin film with the upper and lower electrodes formed thereon and therebeneath, attaching the piezoelectric thin film to an acoustic diaphragm in an inclined structure in which the piezoelectric thin film is horizontally turned from the acoustic diaphragm, and performing drying at room temperature; and fixing the acoustic diaphragm to a frame using an adhesive material with high elasticity.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: December 22, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hye Jin Kim, Sung Q Lee, Hong Yeol Lee, Kang Ho Park, Jong Dae Kim, Kun Mo Koo
  • Patent number: 9197976
    Abstract: The present disclosure relates to security system and method based on sound field variation pattern. The present disclosure identifies a slow variation pattern of a acoustic transfer function occurring due to a gradual change in temperature and humidity of air according to a change in time and a change in a characteristic of an acoustic element, from a sudden sound field variation pattern within an internal space occurring due to an intrusion from an outside, activation of an air conditioning and heating device, and the like, or within a surveillance space induced by a change in an acoustic physical property. The present disclosure identifies sound field variation patterns occurring due to a change in an acoustic structure by an intrusion and a change in temperature and convection by air conditioning and heating. The present disclosure stores and verifies image information using an image obtaining apparatus.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: November 24, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kang-Ho Park, Sung Q Lee