Patents by Inventor Yun Ki Hong

Yun Ki Hong 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: 10965169
    Abstract: A wireless power transmitter includes: a power supply configured to supply a driving power; a first power transmitter including first bridge switching elements forming a first bridge circuit, and configured to receive the driving power to transmit a first power, wherein a magnitude of a first input voltage applied to the first bridge circuit is determined by a duty of at least one of the first bridge switching elements; a second power transmitter including second bridge switching elements forming a second bridge circuit, and configured to receive the driving power to transmit a second power, wherein a magnitude of a second input voltage applied to the second bridge circuit is determined by a duty of at least one of the second bridge switching elements; and a controller configured to output first and second power transmitting control signals respectively controlling the first bridge switching elements and the second bridge switching elements.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 30, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Seung Won Park, Eun Young Shin, Byoung Woo Ryu, Hyo Young Kim, Yun Ki Hong, Young Seung Roh
  • Patent number: 10944291
    Abstract: A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 9, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Yun Ki Hong, Joung Ho Son, Keun Soo Ha, Dae Sik Kim, Eun Young Shin, Seung Won Park
  • Patent number: 10727684
    Abstract: A wireless power transmitter includes a converter, a resonator, and a controller. The converter includes switching elements forming a bridge circuit, and is configured to output an alternating current (AC) voltage in response to control signals. The resonator includes a resonant capacitor and a resonant coil, and is configured to receive the AC voltage to wirelessly transmit power. The controller is configured to perform a first mode operation in which a duty of the control signals is fixed, a frequency of one of the control signals is varied and the control signals are output, and a second mode operation in which a frequency of the control signals is fixed, a duty of one of the control signals is reduced and the control signals are output.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 28, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Jung Ho Son, Keun Soo Ha, Yun Ki Hong, Seung Won Park, Eun Young Shin, Dae Sik Kim
  • Publication number: 20190165610
    Abstract: A wireless power transmitter includes a first resonance circuit having first resonance characteristics; a second resonance circuit having second resonance characteristics different from the first resonance characteristics; a first inverter configured to provide alternating current (AC) power to the first resonance circuit using an input direct current (DC) power; a second inverter configured to provide the AC power to the second resonance circuit using the input DC power; and a controller configured to control the first inverter and the second inverter to cause the first resonance circuit to wirelessly transmit power, and to cause the second resonance circuit to transmit an external object sensing signal while the first resonance circuit wirelessly transmits power.
    Type: Application
    Filed: July 9, 2018
    Publication date: May 30, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yun Ki HONG, Joung Ho SON, Eun Young SHIN, Dae Sik KIM, Hyo Young KIM, Seung Won PARK
  • Publication number: 20190140484
    Abstract: A wireless power transmitter includes: a power supply configured to supply a driving power; a first power transmitter including first bridge switching elements forming a first bridge circuit, and configured to receive the driving power to transmit a first power, wherein a magnitude of a first input voltage applied to the first bridge circuit is determined by a duty of at least one of the first bridge switching elements; a second power transmitter including second bridge switching elements forming a second bridge circuit, and configured to receive the driving power to transmit a second power, wherein a magnitude of a second input voltage applied to the second bridge circuit is determined by a duty of at least one of the second bridge switching elements; and a controller configured to output first and second power transmitting control signals respectively controlling the first bridge switching elements and the second bridge switching elements.
    Type: Application
    Filed: June 19, 2018
    Publication date: May 9, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Won PARK, Eun Young SHIN, Byoung Woo RYU, Hyo Young KIM, Yun Ki HONG, Young Seung ROH
  • Publication number: 20180102668
    Abstract: A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.
    Type: Application
    Filed: August 31, 2017
    Publication date: April 12, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yun Ki HONG, Joung Ho SON, Keun Soo HA, Dae Sik KIM, Eun Young SHIN, Seung Won PARK
  • Publication number: 20180102669
    Abstract: A wireless power transmitter includes a converter, a resonator, and a controller. The converter includes switching elements forming a bridge circuit, and is configured to output an alternating current (AC) voltage in response to control signals. The resonator includes a resonant capacitor and a resonant coil, and is configured to receive the AC voltage to wirelessly transmit power. The controller is configured to perform a first mode operation in which a duty of the control signals is fixed, a frequency of one of the control signals is varied and the control signals are output, and a second mode operation in which a frequency of the control signals is fixed, a duty of one of the control signals is reduced and the control signals are output.
    Type: Application
    Filed: September 7, 2017
    Publication date: April 12, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Ho SON, Keun Soo HA, Yun Ki HONG, Seung Won PARK, Eun Young SHIN, Dae Sik KIM
  • Patent number: 9152260
    Abstract: Disclosed herein are a touch panel and a fabricating method thereof. In the touch panel according to an embodiment of the present invention, a noise shielding layer may be separately formed between a transparent substrate and an electrode pattern, thereby shielding noise that occur from a display coupled to the touch panel. In addition, through a bridge electrode pattern formed by patterning the noise shielding layer and a bridge insulating pattern patterned on an insulating layer formed on the noise shielding layer, a first electrode pattern and a second electrode pattern may be formed on the same plane of the transparent substrate so as to intersect with each other, thereby ensuring reliability of electrical connection between each electrode pattern.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung Soo Chae, Jung Ryoul Yim, Jang Ho Park, Nam Keun Oh, Yun Ki Hong
  • Publication number: 20150277604
    Abstract: Embodiments of the invention provide a touch sensor module including a base substrate having electrode patterns formed thereon and including electrode pads transferring electrical signals of the electrode patterns to the outside, a flexible cable including an adhesive layer contacting one surface of the electrode pad and formed to transfer the electrical signal, and a curvature adhesive having an end portion of one side formed to be in contact with the base substrate and an end portion of the other side formed to be in contact with the flexible cable.
    Type: Application
    Filed: January 30, 2015
    Publication date: October 1, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young An CHOI, Kyoung Soo CHAE, Ji Soo LEE, Yun Ki HONG, Seung Hoon HAN
  • Publication number: 20150123934
    Abstract: Embodiments of the invention provide a touch sensor module, which includes a flexible cable having one or more terminal parts, and an adhesive layer contacting one surface of the terminal parts to transfer electrical signals. The touch sensor module further includes a base substrate including electrode pads formed to correspond to the terminal parts and contacting the other surface of the adhesive layer, and protecting layers formed along edges of the electrode pads.
    Type: Application
    Filed: June 23, 2014
    Publication date: May 7, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Soo LEE, Hyung Ho KIM, Kyoung Soo CHAE, Young An CHOI, Seung Hoon HAN, Yun Ki HONG, Gwan Ha JEONG
  • Publication number: 20150070299
    Abstract: Disclosed herein is a touch sensor to recognize a gesture, including: a touch sensor including first electrode patterns and second electrode patterns which are formed on a base substrate in a direction intersection each other, a mode selection unit, a first switching circuit unit, a second switching circuit unit and a control unit detecting a switching operation of the first switching circuit unit and the second switching circuit unit and a change in mutual capacitance in the first electrode pattern group and the second electrode pattern group depending on an operation mode selection of the touch sensor.
    Type: Application
    Filed: March 4, 2014
    Publication date: March 12, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung Soo CHAE, Je Ho LEE, Ho Yun CHO, Yun Ki HONG
  • Patent number: 8970549
    Abstract: Disclosed herein are a touch screen and a method for driving the same. The touch screen includes: a switching unit including a plurality of switches connected to traces of driving lines and sensing lines of the touch screen, respectively; a sensing unit sensing capacitance and electromagnetic resonance (EMR) according to a switching operation of the switching unit; and a main controlling unit controlling the switching operation of the switching unit according to an operation mode of the touch screen. Therefore, it is possible to improve sensitivity of sensing without increasing a bezel region of the touch screen. In addition, the EMR and the capacitance may be sensed using the same trace structure, and an antenna pattern may be formed and operated as an antenna.
    Type: Grant
    Filed: March 17, 2013
    Date of Patent: March 3, 2015
    Assignee: Samsung Electro-Machanics Co., Ltd.
    Inventors: Hee Bum Lee, Dong Sik Yoo, Ho Yun Cho, Jae Hyuk Jang, Yun Ki Hong, Kyoung Soo Chae
  • Patent number: 8890828
    Abstract: Disclosed herein is a digitizer including: an input unit having a magnetic field shielding part embedded therein; a driving coil supplied with current to induce a magnetic line of force; a sensing coil to which voltage is induced by the magnetic line of force; and a control unit supplying current to the driving coil and measuring voltage induced to the sensing coil, wherein the control unit senses variation of voltage induced to the sensing coil to calculate coordinates of the input unit when the voltage induced to the sensing coil is changed by the magnetic field shielding part.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong Sik Yoo, Kyoung Soo Chae, Hee Bum Lee, Ho Yun Cho, Yun Ki Hong
  • Patent number: 8890829
    Abstract: Disclosed herein is a digitizer including: a driving coil supplied with current to induce a magnetic line of force; a sensing coil disposed so as to intersect the driving coil to flow induced current in one direction by the magnetic line of force; and a control unit sensing variation of voltage induced to the sensing coil to calculate coordinates of the input unit when the voltage is changed due to an approach of an input unit.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ho Yun Cho, Hee Bum Lee, Kyoung Soo Chae, Dong Sik Yoo, Yun Ki Hong
  • Publication number: 20140253822
    Abstract: Disclosed herein is a display device including a touch panel including: a touch panel including a window substrate and an electrode pattern formed on one surface of the window substrate and a display unit bonded to one surface of the touch panel, wherein a stopper is formed in a spaced space between the display unit and the electrode pattern facing each other.
    Type: Application
    Filed: June 19, 2013
    Publication date: September 11, 2014
    Inventors: Yun Ki Hong, Kyoung Soo Chae, Dong Sik Yoo, Ho Yun Cho, Hee Bum Lee, Jang Ho Park
  • Publication number: 20140176486
    Abstract: Disclosed herein are a touch screen and a method for driving the same. The touch screen includes: a switching unit including a plurality of switches connected to traces of driving lines and sensing lines of the touch screen, respectively; a sensing unit sensing capacitance and electromagnetic resonance (EMR) according to a switching operation of the switching unit; and a main controlling unit controlling the switching operation of the switching unit according to an operation mode of the touch screen. Therefore, it is possible to improve sensitivity of sensing without increasing a bezel region of the touch screen. In addition, the EMR and the capacitance may be sensed using the same trace structure, and an antenna pattern may be formed and operated as an antenna.
    Type: Application
    Filed: March 17, 2013
    Publication date: June 26, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hee Bum Lee, Dong Sik Yoo, Ho Yun Cho, Jae Hyuk Jang, Yun Ki Hong, Kyoung Soo Chae
  • Publication number: 20140176821
    Abstract: Disclosed herein are a touch panel and a fabricating method thereof. In the touch panel according to an embodiment of the present invention, a noise shielding layer may be separately formed between a transparent substrate and an electrode pattern, thereby shielding noise that occur from a display coupled to the touch panel. In addition, through a bridge electrode pattern formed by patterning the noise shielding layer and a bridge insulating pattern patterned on an insulating layer formed on the noise shielding layer, a first electrode pattern and a second electrode pattern may be formed on the same plane of the transparent substrate so as to intersect with each other, thereby ensuring reliability of electrical connection between each electrode pattern.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung Soo Chae, Jung Ryoul Yim, Jang Ho Park, Nam Keun Oh, Yun Ki Hong
  • Publication number: 20140083750
    Abstract: Disclosed herein are a raw glass plate for manufacturing a touch panel and a method of manufacturing a touch panel using the raw glass plate. The raw glass plate includes a unit substrate region divided into an active region and a non-active region that is an edge portion of the active region; electrodes formed on the active region of the unit substrate region; wirings that are formed on the non-active region of the unit substrate region and are electrically connected to the electrodes; and a guard line that is formed outside a position at which the wirings are formed, on the non-active region of the unit substrate region in a longitudinal direction of the wirings.
    Type: Application
    Filed: December 17, 2012
    Publication date: March 27, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung Soo Chae, In Hyun Jang, Seul Gi Kim, Yun Ki Hong, Seung Joo Shin, Jang Ho Park
  • Publication number: 20140071083
    Abstract: Disclosed herein is a digitizer including: a transparent substrate; an electrode formed on the transparent substrate to sense a change in capacitance; and a coil formed on the transparent substrate to receive a signal transmitted from the outside. As the touch input unit, various units such as an electronic pen and user's finger, and the like, can be used.
    Type: Application
    Filed: December 28, 2012
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Sik Yoo, Hee Bum Lee, Kyoung Soo Chae, Ho Yun Cho, Seung Joo Shin, Yun Ki Hong
  • Publication number: 20140062921
    Abstract: Disclosed herein is a digitizer, including: a transparent substrate that is partitioned into an active area and an inactive area at an outside of the active area; an electrode that is formed in the active area on one surface of the transparent substrate; a coil that is formed in the active area on one surface of the transparent substrate; and a magnetic sheet that is formed in the inactive area on the other surface of the transparent substrate corresponding to the coil.
    Type: Application
    Filed: August 2, 2013
    Publication date: March 6, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ho Yun Cho, Hee Bum Lee, Kyoung Soo Chae, Dong Sik Yoo, Yun Ki Hong