Patents by Inventor Tae Wook Kang

Tae Wook Kang 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: 11508492
    Abstract: Provided is a radioisotope battery. A radioisotope battery according to exemplary embodiments may include: a substrate; a shield layer disposed on the substrate and including a first material; a source layer embedded in the shield layer and including a second material which is a radioisotope of the first material; a PN junction layer on the shield layer and the source layer; and a window layer between the PN junction layer and the source layer.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 22, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong Mo Park, Tae Wook Kang, Kyung Hwan Park, Byounggun Choi
  • Patent number: 11509403
    Abstract: Provided are a human body communication device and an operating method of the same. The human body communication device according to an embodiment of the inventive concept includes a first electrode, a second electrode, a transmitting circuit, a receiving circuit, a ground electrode, and a switch. The transmitting circuit generates a first signal in a transmitting mode and transmits the first signal to the first electrode. The receiving circuit receives a second signal from the first electrode in the receiving mode. The receiving circuit includes a differential amplifier that amplifies a difference between a voltage level of a first input terminal depending on the second signal and a voltage level of a second input terminal. The switch electrically connects the second electrode and the ground electrode in the transmitting mode, and electrically connects the second electrode and the second input terminal in the receiving mode.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: November 22, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Tae Wook Kang, Sung Eun Kim, Kwang Il Oh, Hyuk Kim, Mi Jeong Park, Hyung-Il Park, Kyung Jin Byun, Jae-Jin Lee, In Gi Lim
  • Patent number: 11500423
    Abstract: A display device includes: a flexible display panel having a display area and a non-display area disposed adjacent to the display area; a supporting member provided at a predetermined area of the flexible display panel adjacent to one side of the flexible display panel, wherein the non-display area of the flexible display panel contacts the supporting member and surrounds the supporting member while being bent at a bend angle, and the bend angle of the non-display area is variously adjusted by the supporting member.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tae Wook Kang
  • Patent number: 11502144
    Abstract: A display device includes a first base, a pixel electrode on the first base, a pixel defining layer having an opening that at least partially exposes the pixel electrode, a light emitting layer on the pixel electrode, an auxiliary electrode on the same layer as the pixel electrode, a partition wall on the auxiliary electrode that at least partially exposes a side surface of the auxiliary electrode, an organic layer on the partition wall, and a common electrode continuously arranged on the light emitting layer and the organic layer, wherein a side surface of the partition wall has a reverse-tapered shape, and the common electrode contacts the side surface of the auxiliary electrode.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 15, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Min Cho, Tae Wook Kang, Tae Sung Kim, Dae Won Choi, Sang Gab Kim
  • Patent number: 11478137
    Abstract: A capsule endoscope image receiver includes a receiving electrode unit that receives first and second differential signals from a capsule endoscope image transmitter through a human body communication channel, an analog amplifying unit that receives the first and second differential signals and outputs first and second amplified differential signals, and a signal restoring unit that receives the first and second amplified differential signals and restores image information. The analog amplifying unit includes a first amplifier that outputs the first amplified differential signal, a second amplifier that outputs the second amplified differential signal, and an input impedance that is connected between a first inverting input terminal of the first amplifier and a second inverting input terminal of the second amplifier and obtains a gain of differential signal amplification in which a high frequency component of the first and second amplified differential signals is greater than a low frequency component.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 25, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwang Il Oh, Tae Wook Kang, Sung Eun Kim, Hyuk Kim, Mi Jeong Park, Hyung-Il Park, Kyung Jin Byun, Jae-Jin Lee, In Gi Lim
  • Publication number: 20220309326
    Abstract: Disclosed is a learning method of a neural network which includes a first intermediate neuron layer and a second intermediate neuron layer. The method includes performing first learning, which is based on a first synaptic weight layer, with respect to input subjects and the first intermediate neuron layer, determining intermediate neurons, which will perform second learning, from among intermediate neurons of the first intermediate neuron layer, based on the number of spikes of each of spike output signals of the intermediate neurons of the first intermediate neuron layer, and performing the second learning, which is based on a second synaptic weight layer, with respect to the intermediate neurons determined to perform the second learning.
    Type: Application
    Filed: December 14, 2021
    Publication date: September 29, 2022
    Inventors: Tae Wook KANG, Sung Eun KIM, Kwang IL OH, Jae-Jin LEE, Hyuk KIM, Hyung-IL PARK, Kyung Jin BYUN
  • Publication number: 20220310928
    Abstract: A display device comprises first and second electrodes extending in one direction on a substrate, the first and second electrodes being spaced apart from each other, an organic layer on the first and second electrodes, the organic layer including a plurality of conductive regions and an insulating region, light-emitting elements on the organic layer and on the first and second electrodes, and a first connecting electrode coupled to first end portions of the light-emitting elements and one of the plurality of conductive regions, and a second connecting electrode coupled to second end portions of the light-emitting elements and another one of the plurality of conductive regions, wherein the organic layer includes PEDOT:PSS, and a surface roughness of the insulating region is greater than a surface roughness of the plurality of conductive regions.
    Type: Application
    Filed: January 19, 2022
    Publication date: September 29, 2022
    Inventors: Ju Hyun LEE, Gyung Min BAEK, Tae Wook KANG, Shin Il CHOI, Do Keun SONG
  • Patent number: 11450722
    Abstract: A display device includes: a first semiconductor layer on a first buffer layer, and including a first active layer; a first gate insulating layer on the first semiconductor layer, and covering the first active layer; a first conductive layer on the first gate insulating layer, and including a first gate electrode; a second conductive layer on the first conductive layer, and including a first source/drain electrode; a first interlayer insulating layer on the first conductive layer; a second semiconductor layer on the first interlayer insulating layer, and including a second active layer; a second gate insulating layer on the second semiconductor layer, and covering the second active layer; and a third conductive layer on the second gate insulating layer, and including a second gate electrode and a second source/drain electrode. The first gate insulating layer and the second gate insulating layer include different insulating materials from each other.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 20, 2022
    Assignee: Samsung Display Co., Lid.
    Inventors: Doo Na Kim, Keun Woo Kim, Tae Wook Kang, Do Kyeong Lee, Yong Su Lee, Jae Hwan Chu, Kwang Hyun Kim, Yeoung Keol Woo, Yung Bin Chung
  • Patent number: 11424775
    Abstract: Disclosed are a human body communication receiver and an operating method thereof, which may effectively remove low frequency noise. The human body communication receiver according to the present disclosure includes a receiving electrode, a virtual electrode, a filter circuit that is connected between the receiving electrode and the virtual electrode, and removes low frequency noise from a signal received through the receiving electrode to generate a high frequency signal, a low frequency reconstruction circuit that is connected to a rear end of the filter circuit and reconstructs a low frequency baseband signal by rectifying the high frequency signal, and an amplifying circuit that is connected to a rear end of the low frequency reconstruction circuit, and amplifies the low frequency baseband signal.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: August 23, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwang Il Oh, Tae Wook Kang, Sung Eun Kim, Hyuk Kim, Hyung-Il Park, Kyung Jin Byun, Jae-Jin Lee, In Gi Lim
  • Patent number: 11418267
    Abstract: Provided is a receiver. The receiver according to the inventive concept includes a first filter circuit, a second filter circuit, and an amplifier. The first filter circuit provides a first path for first frequency components below first cutoff frequency of input frequency components and passes second frequency components except for the first frequency components of the input frequency components through second path. The second filter circuit attenuates third frequency components below a second cutoff frequency of the second frequency components. The amplifier amplifies the second frequency components including the attenuated third frequency components.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: August 16, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwang Il Oh, Sung Eun Kim, Tae Wook Kang, Hyuk Kim, Mi Jeong Park, Hyung-Il Park, Kyung Jin Byun, Jae-Jin Lee, In Gi Lim
  • Publication number: 20220246702
    Abstract: A display device includes: a substrate; a first signal line and a second signal line disposed on the substrate; and an interlayer-insulating layer disposed between the first signal line and the second signal line. The interlayer-insulating layer includes a first portion and a second portion having different heights measured from a surface of the substrate along a first direction that is perpendicular to the surface of the substrate, an upper surface of the first portion of the interlayer-insulating layer is flat, a surface of the second portion of the interlayer-insulating layer is flat, a height of the first portion is lower than a height of the second portion, the interlayer-insulating layer defines a contact hole, and the contact hole is disposed in the first portion of the interlayer-insulating layer.
    Type: Application
    Filed: October 26, 2021
    Publication date: August 4, 2022
    Inventors: Byoung Kwon Choo, Seung Bae Kang, Hee Sung Yang, Bong Gu Kang, Tae Wook Kang, Woo Jin Cho
  • Patent number: 11403515
    Abstract: Provided is a spike neural network circuit. The spike neural network circuit includes an axon configured to generate an input spike signal, a synapse including a first transistor for outputting a current according to a weight and a second transistor connected to the first transistor and outputting the current according to an input spike signal, a neuron configured to compare a value according to the current output from the synapse with a reference value and generate an output spike signal based on a comparison result, and a radiation source attached to a substrate on which the synapse is formed, configured to output radiation particles to the synapse, and configured to increase magnitudes of threshold voltages of the first and second transistors of the synapse.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 2, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang IL Oh, Byounggun Choi, Tae Wook Kang, Sung Eun Kim, Seong Mo Park, Jae-Jin Lee
  • Patent number: 11372623
    Abstract: A random number generating device includes a particle detector, a pulse generator, a clock counter, and a random number converter. The particle detector detects particles emitted from a radioactive isotope. The pulse generator generates pulses corresponding to the particles. The clock counter counts the number of clock cycles during time intervals between the pulses and generates a plurality of count values. The random number converter adjusts a clock frequency, based on a minimum value and a maximum value of the plurality of count values and converts a target count value generated depending on the adjusted clock frequency into a random number.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: June 28, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kyung Hwan Park, Seong Mo Park, Byounggun Choi, Sung Weon Kang, Tae Wook Kang, Jae-Jin Lee, In Gi Lim
  • Publication number: 20220201611
    Abstract: Disclosed is an operating method of a user communication device, which includes receiving a wakeup signal from a stationary communication device over a first human body communication channel, the wakeup signal having a frequency in a low frequency band, switching from a standby mode to a wakeup mode in response to the wakeup signal, and receiving a data signal from the stationary communication device over the first human body communication channel during the wakeup mode, and the first human body communication channel is provided by a body of a user of the user communication device.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyuk KIM, HYUNG-IL PARK, Tae Wook KANG, Sung Eun KIM, Mi Jeong PARK, Kyung Jin BYUN, KWANG IL OH, Sukho LEE, Jae-Jin LEE, In Gi LIM, Kyuseung HAN
  • Publication number: 20220199745
    Abstract: A display device includes a substrate including a display area and a pad area, a transistor including an active layer disposed in the display area, a gate electrode disposed on the active layer, and a source electrode and a drain electrode disposed on the gate electrode, a fan-out line disposed in the pad area, an auxiliary line disposed on the fan-out line, a first interlayer insulating layer disposed between the gate electrode and the source electrode and between the fan-out line and the auxiliary line, and a first organic layer disposed between the first interlayer insulating layer and the auxiliary line, wherein the first organic layer does not overlap the display area.
    Type: Application
    Filed: September 29, 2021
    Publication date: June 23, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Gyung Min BAEK, Tae Wook KANG, Shin Il CHOI
  • Patent number: 11366639
    Abstract: The exemplary embodiments of the present invention provide a quantum random number generation apparatus according to an exemplary embodiment of the present invention including: a space-division semiconductor detector including a plurality of cells, each individually absorbing a plurality of emission particles emitted from a radioactive isotope; and a signal processor that generates a random number based on an absorption event at which the plurality of emission particles are absorbed into the plurality of cells, and thus new type of random number conversion method that combines a spatial randomness and existing temporal randomness of the emission particle can be provided, there is no restriction generated due to the dead time, the random number generation rate can be remarkably increased, and it is possible to generate of a pure random number at high speed, which is required by a computer, a network processor, or an IoT device.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: June 21, 2022
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KOREA ATOMIC ENERGY RESEARCH INSTITUT
    Inventors: Kyung-Hwan Park, Tae Wook Kang, Jong Bum Kim, Jin Joo Kim, Seong Mo Park, Kwang-Jae Son, Young Rang Uhm, Byounggun Choi, Sang Mu Choi, Jintae Hong
  • Patent number: 11346992
    Abstract: A light unit including: a light source; and an optical member that transmits and converts light emitted from the light source, wherein the optical member includes: a light guide; a low refractive index layer that is disposed on the light guide and has a lower refractive index than that of the light guide; a first capping layer that is disposed on the low refractive index layer; and a wavelength conversion layer that is disposed on the first capping layer and includes quantum dots, and the light guide includes a transparent metal oxide.
    Type: Grant
    Filed: December 15, 2019
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Ok Kim, Chui Min Bae, Ji Hye Han, Tae Wook Kang, Yong Seok Kim, Shin Il Choi
  • Publication number: 20220156556
    Abstract: Disclosed is a spiking neural network circuit, which includes an axon circuit that generates an input spike signal, a first synapse zone and a second synapse zone each including one or more synapses, wherein each of the synapses is configured to perform an operation based on the input spike signal and each weight, and a neuron circuit that generates an output spike signal based on operation results of the synapses. The input spike signal is transferred to the first synapse zone and the second synapse zone through a tree structure, and each of branch nodes of the tree structure includes a driving buffer.
    Type: Application
    Filed: September 1, 2021
    Publication date: May 19, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang IL OH, Tae Wook KANG, Sung Eun KIM, Hyuk KIM, Hyung-IL PARK, Jae-Jin LEE
  • Publication number: 20220156590
    Abstract: Disclosed is a method for learning an artificial neural network in a synapse of an artificial intelligence system including generating, by an input neuron of the artificial intelligence system, a first input signal, generating, by the input neuron, a second input signal after a predetermined time, generating, by an output neuron of the artificial intelligence system, an output signal in response to the first input signal and the second input signal that are generated by the input neuron, and adjusting, by the synapse of the artificial intelligence system, connection strength of the artificial neural network based on a temporal order of the first input signal and the second input signal that are generated by the input neuron.
    Type: Application
    Filed: August 27, 2021
    Publication date: May 19, 2022
    Inventors: Sung Eun KIM, Tae Wook KANG, Hyuk KIM, Kwang IL OH
  • Publication number: 20220140024
    Abstract: A display device includes: a substrate; first banks spaced apart from each other on the substrate; a first electrode and a second electrode covering the first banks and spaced apart from each other; a light-emitting element between the first electrode and the second electrode; a first contact electrode connected to the first electrode and contacting one end of the light-emitting element; and a second contact electrode connected to the second electrode and contacting another end of the light-emitting element. The first contact electrode includes a first material, the second contact electrode includes a second material, and physical properties of the first material and the second material are different from each other.
    Type: Application
    Filed: August 9, 2021
    Publication date: May 5, 2022
    Inventors: Min Suk KO, Tae Wook KANG, Kab Jong SEO, Bo Geon JEON