Patents by Inventor Tae Seok Ko

Tae Seok Ko 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: 10892647
    Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 12, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Jung Woo Choi, Tae Seok Ko, Byoung Woo Ryu
  • Patent number: 10886783
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 5, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Tae Seok Ko, Young Woon Choi, Joung Ho Son, Doo Young Song
  • Patent number: 10833539
    Abstract: A mobile terminal includes a communication controller configured to detect a wireless tag in a mobile environment and a wireless charging controller configured to receive power wirelessly, and control the communication controller to determine whether the wireless tag is in the mobile environment, in response to receiving a wake-up power signal from a wireless power transfer apparatus.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 10, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Ji Hoon Kim, Tae Seok Ko, Dong Yeol Lee, Ju Hyoung Park, Sang Beom Lee
  • Patent number: 10447346
    Abstract: An inverter includes a pulse generator configured to generate a reference pulse signal having a first frequency; and a gate signal generator configured to apply a pulse width modulation control having a variable duty rate, based on a second frequency, to the reference pulse signal to generate a gate signal.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 15, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Seok Ko, Young Su Jang
  • Publication number: 20190222065
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 18, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Tae Seok KO, Young Woon CHOI, Joung Ho SON, Doo Young SONG
  • Publication number: 20190148980
    Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.
    Type: Application
    Filed: September 20, 2018
    Publication date: May 16, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Jung Woo CHOI, Tae Seok KO, Byoung Woo RYU
  • Publication number: 20190148966
    Abstract: A wireless power transmitter includes: a near field communications (NFC) controller configured to communicate with a wireless power receiver in an NFC method using an NFC coil; and a wireless charging controller configured to wirelessly supply power to the wireless power receiver using a power transmitting coil, and to determine whether a cross connection has occurred for the wireless power receiver by comparing first identification information transmitted to the wireless power receiver in the NFC method with second identification information received from the wireless power receiver in a communications method different from the NFC method.
    Type: Application
    Filed: June 26, 2018
    Publication date: May 16, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Woo CHOI, Tae Seok KO, Byoung Woo RYU
  • Publication number: 20190097468
    Abstract: A mobile terminal includes a communication controller configured to detect a wireless tag in a mobile environment and a wireless charging controller configured to receive power wirelessly, and control the communication controller to determine whether the wireless tag is in the mobile environment, in response to receiving a wake-up power signal from a wireless power transfer apparatus.
    Type: Application
    Filed: June 21, 2018
    Publication date: March 28, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ji Hoon KIM, Tae Seok KO, Dong Yeol LEE, Ju Hyoung PARK, Sang Beom LEE
  • Patent number: 10205349
    Abstract: A wireless power transmitter includes a wireless power controller configured to receive an alternating current (AC) voltage, to convert the AC voltage into a direct current (DC) voltage, and to generate an induced current from the DC voltage according to a switching control for a transformer; and a resonator configured to be resonated by the induced current to wirelessly output charging power.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 12, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Ho Cho, In Wha Jeong, Tae Seok Ko, Hyo Young Kim
  • Patent number: 10170941
    Abstract: A non-contact type power transfer apparatus includes a power converter configured to convert input power into transmission power; a power transmitter configured to transmit the transmission power in a non-contact manner; and a controller configured to provide a power conversion control signal to control a power conversion operation of the power converter according to a state of the transmission power, and to output an input power control signal to control a power level of the input power according to the power conversion control signal.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: January 1, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Ho Cho, Tae Seok Ko
  • Publication number: 20180152050
    Abstract: An apparatus for transmitting power wirelessly includes a transmission coil circuit including a single coil including a plurality of turns; a high power transmitter configured to transmit a high power transmission signal for transmitting first power through the transmission coil circuit; a low power transmitter configured to transmit a low power transmission signal for transmitting second power lower than the first power through the transmission coil circuit; and a switching circuit configured to electrically connect either the high power transmitter or the low power transmitter to the transmission coil circuit in response to operations of the high power transmitter and the low power transmitter.
    Type: Application
    Filed: April 27, 2017
    Publication date: May 31, 2018
    Inventors: Tae Seok KO, Ji Hoon KIM
  • Publication number: 20180102813
    Abstract: An inverter includes a pulse generator configured to generate a reference pulse signal having a first frequency; and a gate signal generator configured to apply a pulse width modulation control having a variable duty rate, based on a second frequency, to the reference pulse signal to generate a gate signal.
    Type: Application
    Filed: July 19, 2017
    Publication date: April 12, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Seok KO, Young Su JANG
  • Publication number: 20170279307
    Abstract: A wireless power transmitter includes a wireless power controller configured to receive an alternating current (AC) voltage, to convert the AC voltage into a direct current (DC) voltage, and to generate an induced current from the DC voltage according to a switching control for a transformer; and a resonator configured to be resonated by the induced current to wirelessly output charging power.
    Type: Application
    Filed: November 9, 2016
    Publication date: September 28, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Ho CHO, In Wha JEONG, Tae Seok KO, Hyo Young KIM
  • Publication number: 20170187240
    Abstract: A non-contact type power transfer apparatus includes a power converter configured to convert input power into transmission power; a power transmitter configured to transmit the transmission power in a non-contact manner; and a controller configured to provide a power conversion control signal to control a power conversion operation of the power converter according to a state of the transmission power, and to output an input power control signal to control a power level of the input power according to the power conversion control signal.
    Type: Application
    Filed: July 8, 2016
    Publication date: June 29, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Ho CHO, Tae Seok KO
  • Publication number: 20160028316
    Abstract: A power converter having a wide range of an output voltage may include a power supply unit supplying a driving current to a load, a sensing unit sensing a magnitude of the driving current, a first switch controlling an on/off time to control a flow of the driving current, and a control unit operated by being divided into constant current driving and average current driving corresponding to the magnitude of the driving current sensed by the sensing unit. The control unit may controls the power supply unit in the constant current driving so as to make the magnitude of driving current be a predetermined value, and control an on/off time in the average current driving to make an average magnitude of the driving current be the predetermined value.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 28, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Seok KO, Young Su JANG
  • Patent number: 9231485
    Abstract: A power supply may include a driving power supply unit converting input power to supply driving power to a load, and a power supply control unit performing a control to detect a change in a voltage level of the driving power and cut off the input power when the detected voltage level of the driving power is equal to or more than a preset voltage level, in a preset standby mode.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: January 5, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: Byoung Woo Ryu, Tae Seok Ko
  • Publication number: 20150207421
    Abstract: A power supply may include a driving power supply unit converting input power to supply driving power to a load, and a power supply control unit performing a control to detect a change in a voltage level of the driving power and cut off the input power when the detected voltage level of the driving power is equal to or more than a preset voltage level, in a preset standby mode.
    Type: Application
    Filed: December 24, 2014
    Publication date: July 23, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byoung Woo RYU, Tae Seok Ko