Patents by Inventor Sang-Wook Han

Sang-Wook Han 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: 10469132
    Abstract: According to an embodiment a wireless power transmitting device, includes a power transmission antenna including patch antennas to wirelessly transmit power, and communication antennas configured to receive a communication signal from an electronic device. The wireless power transmitting device also includes a processor configured to detect a direction in which the electronic device is positioned based on the communication signal received through the communication antennas and control the power transmission antenna to transmit the power in the detected direction.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-Woo Lee, Jae-Hyuck Shin, Sang-Wook Lee, Chong-Min Lee, Hyo-Seok Han
  • Publication number: 20190310587
    Abstract: Provided is clock signal generator configured to generate a target output clock signal based on a reference clock signal, the clock signal generator includes a digital-to-time converter (DTC) configured to delay a reference clock signal based on an input code to generate a delay clock signal, and output the delay clock signal, a DTC controller configured to determine an initial gain value of the DTC based on a result of comparing at least one delay amount of the DTC with a period of a previously generated output clock signal, and generate the input code based on the initial gain value, and a phase locked loop configured to generate the target output clock signal based on the delay clock signal and a division clock signal of the previously generated output clock signal, the target output clock signal being locked to the delay clock signal.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 10, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shin-woong KIM, Jae-young KIM, Chul-ho KIM, Jae-hyuk JANG, Sang-wook HAN
  • Publication number: 20190306942
    Abstract: A lighting apparatus including an LED circuit including a plurality of serially connected stages configured to receive a modulated rectified voltage, each of the stages including a first path including a first resistor and a first LED connected in series, and a second path connected to the first path in parallel and including a second LED configured to emit light having a color temperature different from that emitted from the first LED, and a driving current controller configured to adjust an intensity of light output from the LED circuit by adjusting currents applied to driving nodes connected to the stages, depending on a dimming signal associated with a dimming level of the rectified voltage, in which a threshold voltage of the first LED is lower than that of the second LED.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Keith HOPWOOD, Hyung Jin LEE, Sung Ho JIN, Sang Wook HAN, In Seok BAEK
  • Publication number: 20190278567
    Abstract: The present invention provides a random number generation system comprising: an image sensor module for outputting dark noise generated from each unit pixel region respectively that is shielded from external light as digital data; and a control unit for classifying the respective pieces of digital data output from the image sensor module, for allocating random numbers to the same using a database in which a plurality of reference values are stored for each unit pixel, and for collating the same so as to generate a first random number.
    Type: Application
    Filed: September 26, 2017
    Publication date: September 12, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Byung Kwon PARK
  • Patent number: 10371534
    Abstract: Provided are an apparatus and method for sharing and learning driving environment data to improve the decision intelligence of an autonomous vehicle. The apparatus for sharing and learning driving environment data to improve the decision intelligence of an autonomous vehicle includes a sensing section which senses surrounding vehicles traveling within a preset distance from the autonomous vehicle, a communicator which transmits and receives data between the autonomous vehicle and another vehicle or a cloud server, a storage which stores precise lane-level map data, and a learning section which generates mapping data centered on the autonomous vehicle by mapping driving environment data of a sensing result of the sensing section to the precise map data, transmits the mapping data to the other vehicle or the cloud server through the communicator, and performs learning for autonomous driving using the mapping data and data received from the other vehicle or the cloud server.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 6, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyoung Wook Min, Jeong Dan Choi, Jun Gyu Kang, Sang Heon Park, Kyung Bok Sung, Joo Chan Sohn, Dong Jin Lee, Yong Woo Jo, Seung Jun Han
  • Patent number: 10362650
    Abstract: A driving circuit for a light emitting diode connected to a TRIAC dimmer configured to modulate an input AC voltage depending on a selected dimming level including a rectifier configured to full-wave rectify the modulated AC voltage output from the TRIAC dimmer to generate and output a driving voltage, a driving module configured to receive the driving voltage of the rectifier to detect the selected dimming level and drive a plurality of light emitting diode groups depending on the detected dimming level, and a bleeder circuit configured to provide a bleeder current to the TRIAC dimmer, in which the bleeder circuit is configured to provide the bleeder current only for a preset on-duty time.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: July 23, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Bea Lim, Sung Ho Jin, Sang Wook Han, Young Do Jong
  • Patent number: 10356865
    Abstract: A lighting apparatus including a light emitting diode connected to a dimmer configured to modulate an input AC voltage depending on a selected dimming level, a rectifier configured to full-wave rectify the modulated AC voltage output from the dimmer to generate and output a driving voltage, a driving module configured to receive the driving voltage of the rectifier to detect the selected dimming level, and select one of three driving modes of a stop mode, a resistance driving mode, and a sequential driving mode depending on the detected dimming level, and a plurality of light emitting diode groups configured to emit light depending on a control of the driving module.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: July 16, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kwang Bea Lim, Sung Ho Jin, Sang Wook Han, Young Do Jong
  • Patent number: 10339675
    Abstract: A tomography method for generating a computed tomography (CT) image, including generating a first tomography image based on first raw data corresponding to a received X-ray comprising acquired photons; determining second raw data by generating a second tomography image having an increased resolution in comparison with the first tomography image and performing forward projection on the second tomography image; determining third raw data based on a first parameter, the first raw data, and the second raw data; and generating a third tomography image based on the third raw data, wherein the determining of the third raw data may be based on information about a distribution of the acquired photons, the information being included in at least one from among the first raw data and the second raw data.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-hwan Choi, Seok-min Han, Sang-wook Yoo, Jong-hyon Yi
  • Patent number: 10342080
    Abstract: A light-emitting diode (LED) lighting apparatus including at least one LED group including a plurality of LEDs, a rectifier configured to rectify an alternating current (AC) voltage and generate a driving voltage for the at least one LED group, and a system-in-package (SIP) configured to drive and control the at least one LED group, in which the SIP is connected to the at least one LED group and the rectifier, and includes a driving module, a functional module, and a first resistor disposed on a single substrate.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 2, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Sung Ho Jin, Sang Wook Han, Hyung Jin Lee
  • Publication number: 20190196532
    Abstract: A digital processing system including a master chip having a first clock pin and a first data pin and a first slave chip having a second clock pin and a second data pin may be provided. The digital processing system may transmit first data from the master chip to the first slave chip based on a synchronous scheme in which a first clock signal output from the master chip via the first clock pin and the first data output from the master chip via the first data pin are provided together and the first data is transmitted in synchronization with the first clock signal, and may transmit second data from the first slave chip to the master chip based on an asynchronous scheme in which the second data output from the first slave chip via the second data pin is transmitted regardless of the first clock signal.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 27, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ho-Rang JANG, Ji-Woong KWON, Sang-Wook HAN
  • Patent number: 10324775
    Abstract: Disclosed is a method for bi-directional calling between an open system module and a mainframe system module, which is performed in a computing device including one or more processors and a main memory storing commands executable in the processors. The method may include: receiving, by a front-end interface, a calling for a mainframe function on the mainframe system module from the open system module program; requesting, by an entrance point processing unit of the front-end interface, information on the mainframe function to a program processing unit of a back-end interface; controlling, by the entrance point processing unit of the front-end interface, a register processing unit of the back-end interface to set a mainframe register value used in the mainframe system module; and transferring, by the front-end interface, a system control to the mainframe system module through a control transfer processing unit of the back-end interface so as to drive the mainframe function on the mainframe system module.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: June 18, 2019
    Assignee: TmaxSoft Co., Ltd.
    Inventors: Tae Hyun Yoon, Sang Yong Park, Jang Won Han, Hwang Wook Kim, Mi Reu Lim
  • Publication number: 20190180811
    Abstract: A sense amplifier includes a sense amplifying unit, first and second isolation units, and first and second offset cancellation unit. The sense amplifying unit includes a first P-type metal-oxide-semiconductor (PMOS) transistor, a second PMOS transistor, a first N-type metal-oxide-semiconductor (NMOS) transistor, and a second NMOS transistor. In a layout of the sense amplifier, the first and second PMOS transistors are disposed in a central region of the sense amplifier, the first and second NMOS transistors are disposed at opposite sides of the sense amplifier from each other, the first isolation unit and the first offset cancellation unit are disposed between the first PMOS transistor and the first NMOS transistor, and the second isolation unit and the second offset cancellation unit are disposed between the second PMOS transistor and the second NMOS transistor. In other layouts, the locations of the PMOS transistors and NMOS transistors may be reversed.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 13, 2019
    Inventors: YOUNG-WOOK KIM, HYUK-JOON KWON, SANG-KEUN HAN, BOK-YEON WON
  • Patent number: 10321529
    Abstract: An alternating current sequential drive type LED lighting device having improved flicker performance and being capable of reducing the light output deviation of the LED lighting device generated during operation intervals by removing nonluminous intervals of the LED lighting device by means of a loop-back compensation unit.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 11, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Young Do Jung, Sung Ho Jin, Sang Wook Han, Hye Man Jung
  • Publication number: 20190172225
    Abstract: Provided is a technology for a vehicle sensor calibration, in which a vehicle sensor calibration apparatus according to an embodiment includes a sensor device installed inside a calibration room that is a space in which a vehicle having a vehicle sensor mounted thereon is positioned, and configured to obtain basic position information and basic orientation information of the vehicle, a calibration execution module installed in the vehicle and configured to execute calibration on the vehicle sensor on the basis of information received from the outside, and a control module configured to generate calibration position information and calibration orientation information for calibration of the vehicle by analyzing the basic position information and the basic orientation information obtained by the sensor device.
    Type: Application
    Filed: September 17, 2018
    Publication date: June 6, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sang Heon PARK, Jeong Dan CHOI, Seung Jun HAN, Jungyu KANG, Kyoung Wook MIN, Kyung Bok SUNG, Dong Jin LEE, Yong Woo JO
  • Patent number: 10312970
    Abstract: An apparatus for transmitting power wirelessly includes a power transmitter configured to transmit power wirelessly to an apparatus for receiving power wirelessly, and an identification information manager configured to transmit first identification information allocated to the apparatus for transmitting power wirelessly to other devices.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: June 4, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Suk Sung, Chang Ik Kim, Chang Soo Kang, Hee Sun Han, Yong Woon Park, Hyung Wook Cho, Sung Heum Park, Sang Ho Cho, Chul Gyun Park, Ki Won Chang
  • Patent number: 10297406
    Abstract: There are provided a system and a method for controlling power of a high speed vehicle. The system for controlling power of a vehicle includes: a latch relay configured to supply power to a vehicle load or to block power to the vehicle; a communication part configured to output a driving signal when a wakeup signal is received; a pulse generator configured to output a one shot pulse that turns on the latch relay when the driving signal is applied; and a processor configured to control a driving of the latch relay turned on by the one shot pulse when being initialized.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 21, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Yura Corporation Co., Ltd.
    Inventors: Hyun Wook Kim, Young Jong Lee, Hae Yun Kwon, Jin Kim, Sang Jae Han, Chan Young Jung
  • Patent number: 10287554
    Abstract: The present invention relates to an induced pluripotent stem cell model of Fabry disease, a preparation method thereof, and a use of the same for the study of Fabry disease development and for the screening of a therapeutic agent for the disease. Particularly, Fabry disease derived induced pluripotent stem cells (iPSCs), embryoid body (EB), and vascular cells were developed and differentiated from fibroblasts originated from Fabry disease patient, wherein the Fabry disease originated iPSCs displayed significantly reduced expression and activity of GLA protein therein, compared with the normal cells, resulting in the accumulation of globotriaosylceramide (Gb3, CD77). Also, the differentiation of vascular cells was induced from the Fabry disease originated iPSCs, and as a result the iPSCs were successfully differentiated into vascular endothelial cells and vascular smooth muscle cells with significantly expressing the marker protein.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: May 14, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-mahn Han, Sang-Wook Park
  • Patent number: 10244596
    Abstract: Disclosed are a light emitting diode (LED) driver circuit having improved flicker performance and an alternating current-driving type LED lighting device including the same. The LED driver circuit can remove an LED off period using a charging and discharging circuit during a compensation period so as to reduce light output deviation of an LED lighting device, and provide a driving voltage to another element of the LED lighting device, using the charging and discharging circuit during an additional discharging period so as to simultaneously improve power efficiency.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 26, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Sung Ho Jin, Sang Wook Han, Young Do Jung, Hyung Jin Lee
  • Publication number: 20190053346
    Abstract: An LED lighting apparatus capable of color temperature control includes a color temperature controller to receive a color temperature selection signal and output first and second control signals; a LED driver connected a plurality of LED groups; and a LED selection circuit including a first switch connected to a first node to which a rectified voltage is applied and receiving the first control signal, a first LED group selectively connected to the first node by the first switch, a second LED group connected in series with the first LED group, a third LED group selectively connected to the first node by the first switch, a fourth LED group connected in series with the third LED group, and a second switch for selectively connecting the output terminal of the second LED group or the fourth LED group to the LED driver by receiving the second control signal.
    Type: Application
    Filed: July 25, 2018
    Publication date: February 14, 2019
    Inventors: Keith Hopwood, Sung Ho Jin, Hyung Jin Lee, Sang Wook Han
  • Patent number: 10187945
    Abstract: An alternating current sequential drive type LED lighting device having improved flicker performance and being capable of reducing the light output deviation of the LED lighting device generated during operation intervals by removing nonluminous intervals of the LED lighting device by means of a loop-back compensation unit.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: January 22, 2019
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Young Do Jung, Sung Ho Jin, Sang Wook Han, Hye Man Jung