Patents by Inventor Dong Zo KIM

Dong Zo KIM 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).

  • ELECTRONIC DEVICE FOR OPERATING POWERLESS SENSOR AND CONTROL METHOD THEREOF
    Publication number: 20160261151
    Abstract: An electronic device performing communication with a powerless sensor is provided. The electronic device includes a wireless charging module configured to wirelessly transmit power to a powerless sensor; and a communication module configured to receive data that is sensed in the powerless sensor using the wirelessly transmitted power.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 8, 2016
    Inventors: Dong-Zo KIM, Sang-Wook KWON, Ki-Young KIM, Sung-Bum PARK, Byoung-Hee LEE
  • Apparatus and method for wireless power reception
    Patent number: 9437362
    Abstract: An apparatus and a method for wireless power reception are provided. A wireless power receiver includes a receiving unit configured to wirelessly receive a power. The wireless power receiver further includes a power consuming unit configured to consume the power, until a voltage applied to a load reaches a predetermined value, so that an amount of a power transferred from the receiving unit to the load is less than or equal to an initial accommodation power amount of the load.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: September 6, 2016
    Assignees: Samsung Electronics Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Dong Zo Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Seong Joong Kim, Yong Seong Roh, Young Jin Moon, Yun Kwon Park, Keum Su Song, Chang Sik Yoo, Chang Wook Yoon, Jin Sung Choi
  • Apparatus and method for wireless power transmission
    Patent number: 9431830
    Abstract: An apparatus and method for controlling a magnetic field when power is wirelessly transmitted are provided. According to one general aspect, a wireless power transmitter may include: a source resonator configured to wirelessly transmit power to a target device including at least one sub-resonator located there within; and a magnetic field distribution controller configured to control the distribution of the magnetic field within the resonator based the resonance frequency of the at least one sub-resonator and the resonance frequency of the source resonator.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Ho Ryu, Eun Seok Park, Sang Wook Kwon, Yun Kwon Park, Young Tack Hong, Ki Young Kim, Nam Yun Kim, Dong Zo Kim, Jin Sung Choi, Chang Wook Yoon
  • Apparatus and method for wireless power transmission including a source resonator having a substantially uniform megnetic field
    Patent number: 9431707
    Abstract: A source resonator for wirelessly transmitting power to a target device may include a magnetic field distribution adjusting unit that is configured to adjust the magnetic field generated by the source resonator. In one or more embodiments, the magnetic field distribution adjusting unit may adjust the magnetic field to be substantially uniform in a predetermined vicinity of the source resonator. For example, the magnetic field distribution adjusting unit may adjust the intensity of the magnetic field near the center of the source resonator to be substantially the same as the intensity of the magnetic field near an edge area of the source resonator.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Ho Ryu, Eun Seok Park, Jeong Hae Lee, Sang Wook Kwon, Yun Kwon Park, Young Tack Hong, Ki Young Kim, Nam Yun Kim, Dong Zo Kim, Jin Sung Choi, Jae Hyun Park, Byung Chul Park
  • Active rectifier with delay locked loop to compensate for reverse current leakage and wireless power receiving apparatus including active rectifier with delay locked loop to compensate for reverse current leakage
    Patent number: 9431889
    Abstract: An active rectifier and a wireless power receiver including the active rectifier are provided. According to an aspect, an active rectifier may include: a first loop configured to provide voltage when the phase of an input signal is positive; and a second loop configured to provide voltage when the phase of the input signal is negative, wherein the first loop and the second loop include a delay locked loop configured to compensate for reverse current leakage due to a delay of a switch included therein.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: August 30, 2016
    Assignees: Samsung Electronics Co., Ltd., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Dong Zo Kim, Young Tack Hong, Jin Sung Choi, Young Jin Moon, Sang Wook Kwon, Yun Kwon Park, Chang Sik Yoo, Eun Seok Park, Ki Young Kim, Young Ho Ryu, Nam Yun Kim, Yong Seong Roh
  • Apparatus and method for wirelessly receiving power, and apparatus and method for wirelessly transmitting power
    Patent number: 9425863
    Abstract: An apparatus and a method for wirelessly receiving power, and an apparatus and a method for wirelessly transmitting power, are provided. A wireless power receiver includes a receiving unit configured to wirelessly receive a power, and a controller configured to control a length of a clock signal based on the power. The wireless power receiver further includes a modulator configured to change an impedance based on the length of the clock signal to perform load modulation.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 23, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Zo Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Yun Kwon Park, Jae Hyun Park, Keum Su Song, Chi Hyung Ahn, Young Ho Ryu, Chang Wook Yoon
  • Wireless power transmission system with enhanced magnetic field strength
    Patent number: 9418785
    Abstract: A wireless power transmission system with an enhanced magnetic field strength is provided. A wireless power transmitter includes a generator configured to generate a power. The wireless power transmitter further includes a resonator configured to generate a magnetic field to transmit the power to a target device. The wireless power transmitter further includes a slab unit configured to enhance the magnetic field.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Seok Park, Ki Young Kim, Young Ho Ryu, Sang Wook Kwon, Nam Yun Kim, Dong Zo Kim, Yun Kwon Park, Chang Wook Yoon, Jin Sung Choi, Young Tack Hong
  • Wireless power transmission system based on cell division
    Patent number: 9413429
    Abstract: A wireless power transmission system based on cell division is provided. A communication and power control method of the wireless power transmission system, includes setting a magnetic coupling zone. The method further includes detecting a target device in the magnetic coupling zone. The method further includes transmitting a power to the target device. The method further includes adjusting an amount of the power based on a transmission efficiency of the power.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Seok Park, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Dong Zo Kim, Yun Kwon Park, Young Ho Ryu, Chang Wook Yoon, Jin Sung Choi, Young Tack Hong
  • Wireless power transmission and reception system
    Patent number: 9403440
    Abstract: A wireless charging station, an electric vehicle charged wirelessly, and a method of charging an electric vehicle are provided. A wireless charging station include a charging unit configured to transmit power wirelessly to an electric vehicle, using a source resonator installed in the charging station; and a driving unit configured to move a target resonator connected to the source resonator from a position at which the target resonator is mounted on the charging unit to an installation space of the electric vehicle, when the electric vehicle is disposed in a charging area of the charging station.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chi Hyung Ahn, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Dong Zo Kim, Bong Chul Kim, Yun Kwon Park, Jae Hyun Park, Keum Su Song, Young Ho Ryu, Byoung Hee Lee
  • Wearable Device
    Publication number: 20160204646
    Abstract: Disclosed are various embodiments relating to a wearable device. According to an embodiment, a wearable device including a wireless charging device may include: a housing of the wearable device; first and second straps connected to the housing; first and second buckles provided on the first and second straps; a reception resonator provided in the housing to receive power transmitted from the outside; and a wireless power reception module provided in the housing and electrically connected to the reception resonator. Various other embodiments can be made.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 14, 2016
    Inventors: Sung-Bum PARK, Dong-Zo KIM, Jae-Hyun PARK
  • Wireless power transmission and charging system, and power control method of wireless power transmission and charging system
    Patent number: 9391461
    Abstract: A wireless power transmission and charging system, and a power control method of the wireless power transmission and charging system are provided. The power control method may include generating charging power using the power amplifier. The charging power may be used to charge a target device. The charging power may be transmitted to the target device. The voltage supplied to the power amplifier may be adjusted based on a detected change in the current input to the power amplifier, a detected change in the temperature of the source device, a detected change in the amount of the power received to the target device, or a detected change in the temperature of the target device.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: July 12, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Yun Kwon Park, Eun Seok Park, Young Tack Hong, Ki Young Kim, Young Ho Ryu, Dong Zo Kim, Jin Sung Choi, Chang Wook Yoon
  • Apparatus and method for transmitting power and transceiving data using mutual resonance, and apparatus and method for receiving power and transceiving data using mutual resonance
    Patent number: 9391469
    Abstract: An apparatus configured to transmit power, and transceive data, using mutual resonance, includes a power transmitter configured to wirelessly transmit power to a device, using a power transmission frequency as a resonant frequency. The apparatus further includes a communication unit configured to transceive data to and from the device, using a communication frequency as a resonant frequency. The apparatus further includes a controller configured to determine a charging state of the device based on the data received from the device, and control an amount of the power based on the charging state.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: July 12, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Zo Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Bong Chul Kim, Yun Kwon Park, Jae Hyun Park, Keum Su Song, Chi Hyung Ahn, Young Ho Ryu, Chang Wook Yoon, Byoung Hee Lee
  • Wireless Power Receiver and External Inductor Connected Thereto
    Publication number: 20160197491
    Abstract: Disclosed is an external inductor that is connected to a wireless power receiver. The external inductor may include a conductor including at least one main slit, a first connecting unit that connects a first point of the conductor and the wireless power receiver with each other, and a second connecting unit that connects a second point of the conductor and the wireless power receiver with each other.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 7, 2016
    Inventors: Jae-Hyun Park, Young-Ho Ryu, Do-Won Kim, Sang-Wook Kwon, Dong-Zo Kim, Sung-Bum Park, Sung-Ku Yeo
  • ELECTRONIC DEVICE AND METHOD FOR TRANSMITTING AND RECEIVING WIRELESS POWER
    Publication number: 20160181827
    Abstract: An electronic device and method for transmitting and receiving a wireless power are provided. An electronic device for transmitting and receiving wireless power may include a resonator configured to operate, based on a plurality of operating modes of the electronic device including a power reception mode, a relay mode, and a power transmission mode, wherein: (i) in the power reception mode, the resonator is configured to receive power from a wireless power transmitter, (ii) in the relay mode, the resonator is configured to relay power received from the wireless power transmitter to a wireless power receiver, and (iii) in the power transmission mode, the resonator is configured to transmit power to the wireless power receiver; and a path controller configured to control at least one electrical pathway of electronic device based on the operating mode.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 23, 2016
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun KIM, Young Tack HONG, Sang Wook KWON, Yun Kwon PARK, Ki Young KIM, Young Ho RYU, Dong Zo KIM, Jin Sung CHOL, Chang Wook YOON
  • Wireless Power Receiver
    Publication number: 20160172869
    Abstract: A wireless power receiver is disclosed. A wireless power receiver according to various embodiments of the present disclosure includes a resonant reception unit configured to receive wireless power by a resonance scheme; an inductive reception unit configured to receive wireless power by an induction scheme; and a power processing unit configured to process wireless power received at the resonant reception unit and the inductive reception unit. When the wireless power is received by the induction scheme, a current flowing in the inductive reception unit is greater than a current flowing in the resonant reception unit, and when the wireless power is received by the resonance scheme, a current flowing in the resonant reception unit is greater than a current flowing in the inductive reception unit.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Sung-Bum PARK, Do-Won KIM, Young-Ho RYU, Dong-Zo KIM, Jae-Hyun PARK, Keum-Su SONG, Sung-Ku YEO
  • Method and apparatus for detecting load fluctuation of wireless power transmission
    Patent number: 9350193
    Abstract: A method and apparatus to detect load fluctuation of a wireless power transmission are provided. A wireless power transmitter includes a resonator configured to wirelessly transmit, to a target device, an output power. The wireless power transmitter further includes a power detector configured to detect a current of the output power. The wireless power transmitter further includes a controller configured to detect a change in the current, and to detect a target load based on the change in the current. The target load includes a load of which the output power is applied thereto.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 24, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Yun Kim, Sang Wook Kwon, Yun Kwon Park, Eun Seok Park, Young Tack Hong, Ki Young Kim, Young Ho Ryu, Dong Zo Kim, Jin Sung Choi, Chang Wook Yoon
  • Reception node and transmission node using mutual resonance, power and data transceiving system using mutual resonance, and method thereof
    Patent number: 9347168
    Abstract: A reception (RX) node using mutual resonance includes a target resonator configured to receive power via mutual resonance with a source resonator; a controller configured to wake up in response to the received power, determine a point in time at which the controller woke up to be a point in time at which synchronization with other RX nodes is performed, and generate a data packet, and a sensor configured to wake up in response to the received power, sense information.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 24, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Zo Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Bong Chul Kim, Yun Kwon Park, Jae Hyun Park, Keum Su Song, Chi Hyung Ahn, Young Ho Ryu, Chang Wook Yoon, Byoung Hee Lee
  • APPARATUS AND METHOD FOR HIGH EFFICIENCY VARIABLE POWER TRANSMISSION
    Publication number: 20160134130
    Abstract: A high efficiency variable power transmitting apparatus outputs a variable power by modulating, with respect to a time axis, a high frequency signal having a constant amplitude by turning the high frequency signal ON and OFF, amplifying the variable power to satisfy a requested power level of a target device based on a supply voltage having a predetermined level, converting an alternating current (AC) voltage received from a power source to a direct current (DC) voltage, generating the supply voltage having the predetermined level based on the DC voltage, and providing the supply voltage having the predetermined level to the PA.
    Type: Application
    Filed: December 28, 2015
    Publication date: May 12, 2016
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Jin Sung Choi, Young Tack Hong, Sang Wook Kwon, Yun Kwon Park, Young Goo Yang, Eun Seok Park, Ki Young Kim, Young Ho Ryu, Nam Yun Kim, Dong Zo Kim
  • Wireless charging set
    Patent number: 9337691
    Abstract: Provided is a wireless recharging set. A source unit including a source resonator may transmit power wirelessly in all directions, and a device may receive the transmitted wireless power regardless of location.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 10, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Ho Ryu, Eun Seok Park, Sang Wook Kwon, Young Tack Hong, Nam Yun Kim, Yun Kwon Park, Dong Zo Kim, Jin Sung Choi
  • WIRELESS POWER TRANSMISSION SYSTEM, AND METHOD OF CONTROLLING TRANSMISSION AND RECEPTION OF RESONANCE POWER
    Publication number: 20160099579
    Abstract: A resonance power transmission system, and a method of controlling transmission and reception of a resonance power are provided. According to one embodiment, a method of controlling resonance power transmission in a resonance power transmitter may include: transmitting resonance power to a resonance power receiver, the resonance power having resonance frequencies which vary with respect to a plurality of time intervals; and receiving, from the resonance power receiver, information regarding the resonance frequency having the highest power transmission efficiency among the resonance frequencies used in the time intervals.
    Type: Application
    Filed: December 14, 2015
    Publication date: April 7, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Yun KIM, Sang Wook KWON, Yun Kwon PARK, Eun Seok PARK, Young Tack HONG, Young Ho RYU, Dong Zo KIM, Jin Sung CHOI