Patents by Inventor Sang-hun Jeon

Sang-hun Jeon 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: 9819223
    Abstract: A power supply for supplying power to a chipset includes a first voltage regulating circuit, which is configured to convert an applied power supply signal into a group of first supply voltages, and a second voltage regulating circuit, which is configured to convert the applied power supply signal into a group of second supply voltages. A control circuit is provided, which is configured to selectively enable the second voltage regulating circuit to generate the group of second supply voltages. An output discharge circuit is provided, which is configured to discharge an output stage of the first voltage regulating circuit in response to a transition of the first voltage regulating circuit from an active state to an inactive state. This transition of the first voltage regulating circuit from an active state to an inactive state can occur in response to a change in magnitude of the power supply signal.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: November 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Hun Jeon, Ho-Jin Chun
  • Patent number: 9752941
    Abstract: A pressure sensor and a pressure sensing method are provided. The pressure sensor includes a substrate; a sensor thin film transistor (TFT) disposed on the substrate and including a gate insulating layer, wherein the gate insulating layer includes an organic matrix in which piezoelectric inorganic nano-particles are dispersed; a power unit configured to apply an alternating current (AC) signal to a gate of the sensor TFT; and a pressure sensing unit configured to obtain a remnant polarization value based on a drain current which is generated in response to the AC signal and detected by the sensor TFT, and to sense a pressure based on the remnant polarization value.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: September 5, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Sang-hun Jeon, Jong-jin Park, Thanh Tien Nguyen, Ji-hyun Bae, Kyung-eun Byun, Nae-eung Lee, Do-il Kim, Quang Trung Tran
  • Patent number: 9742220
    Abstract: An auxiliary power supply device can include an auxiliary power source configured to provide auxiliary power. An auxiliary power state detection circuit electrically can be coupled to an input or an output of the auxiliary power source and an auxiliary power supply circuit that can be electrically coupled to the output of the auxiliary power source, where the auxiliary power supply circuit can be configured to provide the auxiliary power to a target system when power supplied to the target system by a main power source is abnormal. Related systems are also disclosed.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 22, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun Jeon, Ik-sung Park, Cheol Kwon
  • Patent number: 9690428
    Abstract: An optical touch screen apparatus in which an oxide semiconductor transistor is used as a light sensing device, and a method of driving the optical touch screen apparatus. The optical touch screen apparatus includes an array including a plurality of light sensing pixels for sensing incident light, a gate driver for providing each of the light sensing pixels with a gate voltage and a reset signal and a signal output unit for receiving a light sensing signal from each of the plurality of light sensing pixels to output a data signal. The gate driver includes a plurality of gate lines that provide a gate voltage to each of the light sensing pixels and at least one reset line that provides a reset signal to each of the light sensing pixels and is electrically connected to the plurality of light sensing pixels.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: June 27, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-eon Ahn, I-hun Song, Sang-hun Jeon, Young Kim
  • Patent number: 9674958
    Abstract: A printed circuit board includes an in-line PCB region comprising an input/output control region including a first conductive line, and a main PCB region coupled to the in-line PCB region and comprising a semiconductor chip and an input/output signal generation region including a second conductive line. The input/output signal generation region is configured to detect whether or not the first and second conductive lines are electrically connected and to provide an input/output control signal to the semiconductor chip in response to determining whether or not the first and second conductive lines are electrically connected.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun Jeon, Ho-jin Chun, Hyun-seok Cha, Jae-hoon Heo, Young-deok Kim
  • Publication number: 20170063082
    Abstract: Methods of operating a power supply switching circuit including selecting a first power supply signal for provisioning through the power supply switching circuit to a electronic storage device. A current draw can be detected via the first power supply signal that exceeds a predetermined current limit and a second power supply signal can be coupled to the first power supply signal for provisioning through the power supply switching circuit to the electronic storage device responsive to the current draw exceeding the predetermined current limit.
    Type: Application
    Filed: June 23, 2016
    Publication date: March 2, 2017
    Inventors: WOO-SUNG LEE, CHUNG-HYUN RYU, SANG-HUN JEON, JAE-WOONG CHOI, SANG-SIK HEO
  • Patent number: 9576992
    Abstract: Light-sensing apparatuses may include a light sensor transistor and a switching transistor in a light-sensing pixel, the transistors being oxide semiconductor transistors. In the light-sensing apparatus, the light sensor transistor and the switching transistor in the light-sensing pixel may be adjacently formed on one substrate, the switching transistor including a channel material that is relatively less light-sensitive than the light sensor transistor and is stable, and the light sensor transistor includes a channel material that is relatively light-sensitive. The light sensor transistor may include a transparent upper electrode on a surface of a channel, and a negative voltage may be applied to the transparent upper electrode, whereby a threshold voltage shift in a negative voltage direction may be prevented or reduced.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-hun Jeon, I-hun Song, Seung-eon Ahn, Chang-jung Kim, Young Kim
  • Publication number: 20160349134
    Abstract: Provided are a flexible pressure sensor using an amorphous metal and a flexible bimodal sensor for simultaneously sensing a pressure and a temperature. The sensors according to an exemplary embodiment of the present invention include a conductive layer formed of the amorphous metal to have stretchable characteristics so that it may be used for an electronic skin. Therefore, these sensors may firmly maintain conductivity and sense a pressure or simultaneously sense a pressure and a temperature even in a state in which various kinds of physical external force are present. In addition, the flexible bimodal sensor according to an exemplary embodiment of the present invention is a novel element for an electronic skin that may simultaneously sense a pressure and a temperature using the amorphous metal.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Inventors: Sang Hun JEON, Kung Won RHIE, Dong Seuk KIM, Bum Jin KIM, Tae Ho KIM, Min Hyun JUNG
  • Patent number: 9496494
    Abstract: Provided is a memory device formed on a fiber. The memory device includes a lower electrode, a memory resistance layer, and an upper electrode, which are sequentially formed on a surface of the fiber. The memory resistance layer may have variable resistance properties. The memory device may further include an intermediate electrode and a switching layer formed between the memory resistance layer and the upper electrode.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 15, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-hun Jeon, Jong-jin Park, Ji-hyun Bae
  • Publication number: 20160292432
    Abstract: Provided is a method of distributing an application including transmitting, by a distribution server, a signal for requesting metadata to a user terminal where an application is installed; receiving, by the distribution server, a reply including first metadata from the user terminal; determining, by the distribution server, whether the first metadata is valid based on second metadata corresponding to the application; setting a connection with the user terminal to re-install the application on the user terminal if the distribution server determines that the first metadata is not valid; encrypting, by the distribution server, one or more installation files that install the application with a private key; and transmitting the one or more encrypted installation files via the set connection to the user terminal.
    Type: Application
    Filed: August 12, 2015
    Publication date: October 6, 2016
    Inventors: Dong Pil SEO, Sun Tae KIM, Wang Jin OH, Yoon Seok KIM, Sang Hun JEON
  • Publication number: 20160281222
    Abstract: A three-dimensional (3D) nanoplasmonic structure includes a substrate; a plurality of nanorods formed on the substrate; and a plurality of metal nanoparticles formed on surfaces of the substrate and the plurality of nanorods.
    Type: Application
    Filed: June 13, 2016
    Publication date: September 29, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hyun BAE, Jong-jin PARK, Sang-hun JEON
  • Patent number: 9425320
    Abstract: Provided is a thin film transistor on fiber and a method of manufacturing the same. The thin film transistor includes a fiber; a first electrode, a second electrode and a gate electrode formed on fiber; a channel formed between the first and second electrodes; an encapsulant encapsulating the fiber, the first, second, and gate electrodes, and an upper surface of the channel; and a gate insulating layer formed in a portion of the inner area of the encapsulant.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chwee Iin Choong, Sang-won Kim, Jong-jin Park, Ji-hyun Bae, Jung-kyun Im, Sang-hun Jeon
  • Publication number: 20160235491
    Abstract: Provided is a micro-robot which is integratedly or detachably coupled to one end of a catheter or a guidewire for performing a medical operation using the catheter. Steering and drilling are independently performed by using a catheter thinner in thickness than a related art catheter. The a micro-robot is smoothly inserted into a lesion part and removes a risk of injury and infection in an opening operation through precise steering.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Hong Soo CHOI, Sang Hun JEON, Jeong Hun LEE, Seung Min LEE, Sang Won KIM
  • Patent number: 9419610
    Abstract: Example embodiments are directed to a light-sensing circuit, a method of operating the light-sensing circuit, and a light-sensing apparatus including the light-sensing circuit. The light-sensing circuit includes a light-sensitive oxide semiconductor transistor that senses light; and a switching transistor connected to the light-sensing transistor in series and configured to output data. During a standby time, a low voltage is applied to the switching transistor and a high voltage is applied to the light-sensitive oxide semiconductor transistor, and when data is output, the high voltage is applied to the switching transistor and the low voltage is applied to the light-sensitive oxide semiconductor transistor.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-eon Ahn, Sung-ho Park, I-hun Song, Sang-hun Jeon
  • Patent number: 9362322
    Abstract: In one embodiment, a light-sensing apparatus includes a light-sensing pixel array that has a plurality of light-sensing pixels arranged in rows and columns; and a gate driver configured to provide the light-sensing pixels with a gate voltage and a reset signal that have inverted phases. Each of the light-sensing pixels includes a light sensor transistor configured to sense light and a switch transistor configured to output a light-sensing signal from the light-sensor transistor. The gate driver includes a plurality of gate lines connected to gates of the switch transistors, a plurality of reset lines connected to gates of the light sensor transistors, and a plurality of phase inverters each connected between a corresponding reset line and a gate line. Thus, when a gate voltage is applied to one of the plurality of gate lines, a reset signal with an inversed phase to the gate voltage may be applied to a corresponding reset line.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: June 7, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-eon Ahn, I-hun Song, Sang-hun Jeon, Young Kim, Yong-woo Jeon, Chang-jung Kim
  • Patent number: 9356450
    Abstract: A power supply circuit includes a sequence control circuit configured to generate at least one control signal in response to a main power source, a voltage regulator circuit configured to be coupled to the main power source and to selectively generate at least one power supply voltage for a chipset from the main power source in response to the at least one control signal and a discharge circuit configured to discharge the voltage regulator circuit responsive to the at least one control signal.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 31, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Hun Jeon, Iksung Park, Young-Sang Cho
  • Patent number: 9287487
    Abstract: A textile-based stretchable energy generator is provided. The energy generator includes: flexible and stretchable first and second electrode substrates; and an energy generation layer, which is provided between the first and second electrode substrates and includes a dielectric elastomer for generating electrical energy from a transformation thereof.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: March 15, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hyun Bae, Jong Jin Park, Sang-hun Jeon, Burak Guzelturk
  • Patent number: 9268440
    Abstract: A touch panel includes a sensing unit having a first sub sensing unit configured to output a first sensing current in response to a voltage of a first gate line and configured to reset in response to a voltage of a second gate line the first sensing current corresponding to a first touch type, and a second sub sensing unit configured to output a second sensing current in response to a voltage of a third gate line and configured to reset in response to a voltage of a fourth gate line, the second sensing current corresponding to a second touch type which is different than the first touch type, a display unit configured to generate an image voltage corresponding to image data to be displayed, in response to at least one of the voltages of the first to fourth gate lines and liquid crystal.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-eon Ahn, I-hun Song, Sang-hun Jeon, Young Kim
  • Patent number: 9268428
    Abstract: A light-sensing apparatus in which a light sensor transistor in a light-sensing pixel is formed of an oxide semiconductor transistor for sensing light, a method of driving the light-sensing apparatus, and an optical touch screen apparatus including the light-sensing apparatus. The light-sensing apparatus includes a light-sensing pixel array having a plurality of light-sensing pixels arranged in rows and columns, and a plurality of gate lines which are arranged in a row direction and respectively provide a gate voltage to the light-sensing pixel. Each of the light-sensing pixels includes a light sensor transistor for sensing light and a switch transistor for outputting a light-sensing signal from the light sensor transistor, and gates of the light sensor transistors of the light-sensing pixels arranged in an arbitrary row are connected to a gate line arranged in a row previous or next to the arbitrary row.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Kim, I-hun Song, Sang-hun Jeon, Seung-eon Ahn, Joon-chul Goh, Cheol-gon Lee
  • Patent number: 9222846
    Abstract: A tactile sensor includes a first substrate including a plurality of first electrodes, a second substrate including a plurality of second electrodes corresponding to the plurality of first electrodes, and a dielectric substance disposed between the first substrate and the second substrate, wherein a second electrode corresponding to any one of the first electrodes is offset in one direction with respect to the any one of the first electrodes while a second electrode corresponding to another first electrode neighboring the any one of the first electrodes is offset in another direction.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo Chul Lim, Joon Ah Park, Sang Hun Jeon, Jong Jin Park, Jung Kyun Im