Patents by Inventor Hang Geun Jeong

Hang Geun Jeong 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).

  • Control circuits of collector current of substrate bipolar junction transistors and circuits of compensating for base current for generating a proportional to absolute temperature (PTAT) voltage using the control circuits
    Patent number: 9912330
    Abstract: A circuit for controlling a collector current of a substrate bipolar junction transistor (BJT) is provided. The circuit includes a first current mirror configured to generate a first mirroring base current corresponding to a replicate current of a base current of the substrate BJT, a current transmitter configured to transmit the first mirroring base current, a second current mirror configured to generate a second mirroring base current corresponding to a replicate current of the first mirroring base current received from the current transmitter and configured to supply the second mirroring base current to an emitter of the substrate BJT, and a current source configured to supply a drive current corresponding to a collector current of the substrate BJT to the emitter of the substrate BJT.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 6, 2018
    Assignees: SK hynix Inc., INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY
    Inventors: Hee Jun Kim, Sang Won Lee, Hang Geun Jeong
  • CONTROL CIRCUITS OF COLLECTOR CURRENT OF SUBSTRATE BIPOLAR JUNCTION TRANSISTORS AND CIRCUITS OF COMPENSATING FOR BASE CURRENT FOR GENERATING A PROPORTIONAL TO ABSOLUTE TEMPERATURE (PTAT) VOLTAGE USING THE CONTROL CIRCUITS
    Publication number: 20180006642
    Abstract: A circuit for controlling a collector current of a substrate bipolar junction transistor (BJT) is provided. The circuit includes a first current mirror configured to generate a first mirroring base current corresponding to a replicate current of a base current of the substrate BJT, a current transmitter configured to transmit the first mirroring base current, a second current mirror configured to generate a second mirroring base current corresponding to a replicate current of the first mirroring base current received from the current transmitter and configured to supply the second mirroring base current to an emitter of the substrate BJT, and a current source configured to supply a drive current corresponding to a collector current of the substrate BJT to the emitter of the substrate BJT.
    Type: Application
    Filed: January 31, 2017
    Publication date: January 4, 2018
    Applicants: SK hynix Inc., INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY
    Inventors: Hee Jun KIM, Sang Won LEE, Hang Geun JEONG
  • Light generating device and method for controlling the device
    Patent number: 8766552
    Abstract: A light generating device includes: an LED module that includes a number of LED groups each of which has a number of LEDs, a memory for storing drive current for a number of LED groups respectively, an LED module driving unit for driving one of the LED groups, a current controller for controlling the drive current flowing to the LED module driving unit to drive the selected LED group, a temperature sensor for sensing heat created from the selected LED group, an operation unit for calculating the correct drive current when LEDs in the selected LED group emit light, and a key input unit for selecting one of the LED groups or a number of LED groups. The light generating device increases the light emission efficiency.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: July 1, 2014
    Assignee: Semisolution Inc.
    Inventors: Jung Won Lee, Hang Geun Jeong
  • LIGHT GENERATING DEVICE AND METHOD FOR CONTROLLING THE DEVICE
    Publication number: 20120062119
    Abstract: A light generating device includes: an LED module, a memory, an LED module driving unit, a current controller, a temperature sensor, an operation unit, and a key input unit. The light generating device increases the light emission efficiency.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventors: Jung Won LEE, Hang Geun Jeong