Patents by Inventor Jaehyuk Choi

Jaehyuk Choi 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: 10587789
    Abstract: An image sensor for simultaneously obtaining an image and a proximity is provided. The image sensor includes a proximity signal generating circuit configured to generate a proximity signal of a target based on a pixel signal of a pixel array. The proximity signal generating circuit generates the proximity signal based on an average of pixel signals output from a plurality of pixels included in the pixel array.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 10, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehyuk Choi, Du-Sik Park, Joonah Park
  • Publication number: 20200021186
    Abstract: Disclosed are an electric vehicle capable of improving the charging efficiency of a charging apparatus by reducing the switching loss that may occur in the charging apparatus of an electric vehicle and a charging apparatus thereof. To this end, a power factor correction apparatus of an on board charger includes a first boost circuit receiving AC power through a first inductor to charge a load, a second boost circuit receiving the AC power through a second inductor to charge the load, and a third inductor provided between a leg of the first boost circuit and a leg of the second boost circuit so that parasitic capacitors of the first boost circuit and the second boost circuit are discharged.
    Type: Application
    Filed: October 25, 2018
    Publication date: January 16, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: JongPil KIM, Jaehyuk Choi, Woo Young Lee, HanShin Youn, Gun -Woo Moon, Jae-II Baek, Jung-Kyu Han, Moo-Hyun Park
  • Patent number: 10503045
    Abstract: A beam steering apparatus, a method of driving the beam steering apparatus, and a spatial information acquisition apparatus using the beam steering apparatus, are provided. The beam steering apparatus includes a light source, and a steering array including elements having refractive indexes varying with a voltage driving the steering array, the elements being configured to control a direction of a beam from the light source and incident on the steering array. The beam steering apparatus further includes a driver configured to generate the voltage, based on an intermediate value of at least two voltages, and drive the steering array, based on the generated voltage.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinmyoung Kim, Jaehyuk Choi, Jungwoo Kim
  • Publication number: 20190258881
    Abstract: An authentication method includes projecting a near infrared (NIR) ray using a light emitting diode (LED) of a terminal, receiving a light reflected by a vein of a user using an image sensor of the terminal, verifying whether an image generated using the received light exhibits a vein pattern, in response to the image generated using the received light being verified as exhibiting the vein pattern, generating a vein pattern of the vein based on an image generated using the received light, and in response to the generated vein pattern being determined to match a pre-stored vein pattern, authenticating the user as a registered user corresponding to the pre-stored vein pattern.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jungsoon SHIN, Namjoon KIM, Joonah PARK, Soochul LIM, Jaehyuk CHOI, Tae-Sung JUNG
  • Publication number: 20190198366
    Abstract: A semiconductor packaging apparatus and methods of manufacturing semiconductor devices using the same. The semiconductor packaging apparatus includes a process unit, and a controller associated with the process unit. The process unit includes a bonding part that bonds a semiconductor substrate and a carrier substrate to each other to form a bonded substrate, a cooling part that cools the bonded substrate, and a detection part in the cooling part and configured to detect a defect of the bonded substrate. The controller is configured to control the process unit using data obtained from the detection part.
    Type: Application
    Filed: October 2, 2018
    Publication date: June 27, 2019
    Inventors: JUNGHYUN CHO, SANG-GEUN PARK, DONGSEOK BAEK, JAEHYUK CHOI
  • Patent number: 10318832
    Abstract: A method and apparatus for authenticating a user using a vein pattern are provided that project a near infrared (NIR) ray toward a skin of the user using a light emitting diode (LED), where the user is adjacent to a terminal including the LED. An image sensor receives a light reflected by the skin, generates a vein pattern of the skin based on an image generated using the received light, and authenticates the user as a registered user of a pre-stored vein pattern when the generated vein pattern matches the pre-stored vein pattern.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 11, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jungsoon Shin, Namjoon Kim, Joonah Park, Soochul Lim, Jaehyuk Choi, Tae-Sung Jung
  • Patent number: 10257497
    Abstract: A depth sensor and a 3D camera include a macro pixel that provides an output signal when light is received and a programmable concurrent detector (PCD) circuit that compares an electric signal provided by the macro pixel with a number of concurrence (NC) and determines a necessity of providing the output signal of the macro pixel. In addition, the depth sensor and the 3D camera may include a controller that measures a dark count of the macro pixel, changes the number of concurrence (NC) of the macro pixel, based on the dark count, and controls noise of the macro pixel. In addition, the depth sensor and the 3D camera may control the noise of the macro pixel, based on an external light count which is a noise signal generated due to the external light.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaehyuk Choi, Jinmyoung Kim, Jungwoo Kim
  • Patent number: 10250031
    Abstract: The magnetic coil driving circuit of the magnetic contactor according to the present invention comprises a semiconductor switch configured to open or close a circuit for magnetizing or demagnetizing a magnetic coil; a pulse width modulation unit configured to output a pulse signal as a control signal for turning on or off the semiconductor switch; a control unit configured to output a control signal for changing a pulse width of the pulse signal to the pulse width modulation unit; and a temperature detection and protection unit configured to detect a temperature inside the magnetic contactor, output an output signal for turning off the semiconductor switch when the temperature exceeds an allowable temperature, and control the semiconductor switch by the pulse signal from the pulse width modulation unit when the temperature is within the allowable temperature.
    Type: Grant
    Filed: January 21, 2017
    Date of Patent: April 2, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jaehyuk Choi
  • Patent number: 10217588
    Abstract: The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.
    Type: Grant
    Filed: January 14, 2017
    Date of Patent: February 26, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jaehyuk Choi
  • Publication number: 20180269181
    Abstract: A semiconductor device includes a substrate with an opening formed through the substrate. A first electronic component is disposed over the substrate outside a footprint of the first opening. A second electronic component is disposed over the substrate opposite the first electrical component. A third electronic component is disposed over the substrate adjacent to the first electronic component. The substrate is disposed in a mold including a second opening of the mold over a first side of the substrate. The mold contacts the substrate between the first electronic component and the third electronic component. An encapsulant is deposited into the second opening. The encapsulant flows through the first opening to cover a second side of the substrate. In some embodiments, a mold film is disposed in the mold, and an interconnect structure on the substrate is embedded in the mold film.
    Type: Application
    Filed: March 14, 2017
    Publication date: September 20, 2018
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: DeokKyung Yang, YongMin Kim, JaeHyuk Choi, YeoChan Ko, HeeSoo Lee
  • Patent number: 9983017
    Abstract: According to one embodiment of the present invention, a method is disclosed for calculating the route of a journey (trip) identified by an origin and a destination using traffic information on a terminal, wherein the method comprises the steps of: receiving updated traffic information relating to a first route, while the terminal or a moving object on which the terminal is mounted is running on the first route; calculating a second route by using the updated traffic information; and transmitting, to a server, an entire route or a partial route of the calculated second route.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: May 29, 2018
    Assignee: LG Electronics Inc.
    Inventors: Hongbeom Ahn, Jaehyuk Choi
  • Patent number: 9936132
    Abstract: A CMOS imaging sensor with embedded feature extraction capability operatable in different modes by a method that includes the steps of: (a) operating the CMOS imaging sensor in a motion-detecting mode at a first power level using circuitry on the imaging sensor that generates motion data based on received images detected by pixels in the pixel array; (b) switching the imaging sensor from the motion-detecting mode to a feature extraction mode in response to detecting motion; and (c) operating the imaging sensor in the feature extraction mode at a second power level that is higher than the first power level.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: April 3, 2018
    Assignee: The Regents of the University of Michigan
    Inventors: Euisik Yoon, Jaehyuk Choi
  • Patent number: 9903721
    Abstract: A method for transferring a route of a trip identified by departure and destination which are calculated by a server to a third terminal, according to one embodiment of the present invention, is performed by a terminal, and the departure is a position of the third terminal defined as an identifier (Id) of the third terminal, and the destination is a current position of the terminal.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 27, 2018
    Assignee: LG Electronics Inc.
    Inventors: Jaehyuk Choi, Hongbeom Ahn
  • Patent number: 9866130
    Abstract: A DC-DC converter includes: a clamp capacitor having one terminal connected with a ground terminal of a voltage source; a switching circuit including first and second switches connected with each other in series between a positive terminal and the ground terminal of the voltage source, and third and fourth switches connected with each other in series between both terminals of the clamp capacitor; and a forward-flyback transformer including a plurality of primary coils connected between a first connection node between the first and second switches and a second connection node between the third and fourth switches.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 9, 2018
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Jaehyuk Choi, Woo Young Lee, Seok Joon Kim, Jong Pil Kim, Sam Gyun Kim, Gun Woo Moon, Han Shin Youn, Jae Bum Lee, Jae Il Baek
  • Patent number: 9784834
    Abstract: An image sensing apparatus sensing a user input and an operating method of the image sensing apparatus are disclosed, in which the image sensing apparatus may include an optical source operating based on a burst mode including a turn-on cycle and a turn-off cycle, and an image sensor configured to receive a reflected light using a pixel array and output sensing data of a position of an object in a target area in the reflected light.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: October 10, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaehyuk Choi, Joonah Park, Jungsoon Shin, Du-Sik Park
  • Patent number: 9762829
    Abstract: According to one example embodiment, an image sensor is configured to operate in a plurality of operation modes. The image sensor includes a pixel array including unit pixels configured to generate an analog image signal from incident light, a readout circuit configured to generate a digital image signal by converting the analog image signal, and a control module configured to generate control signals for controlling operations of the pixel array and the readout circuit according to an operation mode of the image sensor. A first power voltage for driving the image sensor when the operation mode of the image sensor is an image recognition mode for recognizing a body of a user of the image sensor, is lower than a second power voltage for driving the image sensor when the operation mode of the image sensor is an image capture mode for capturing images by the user.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaehyuk Choi, Jungsoon Shin
  • Publication number: 20170250044
    Abstract: The present invention relates to an enclosed type electromagnetic switch having a status indication function, and more particularly, to and enclosed-type electromagnetic switch having a status indication function that can show the electromagnetic switch's status on an enclosure.
    Type: Application
    Filed: January 14, 2017
    Publication date: August 31, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Jaehyuk CHOI
  • Patent number: 9749930
    Abstract: A method for receiving a trip path including a plurality of passage places calculated by a server according to an embodiment of the present invention includes the steps of: enabling a terminal to send a request for a trip path including a plurality of passage places to the server, the request containing an indicator for representing the request for the path including the plurality of passage places from the server, wherein if the proposed trip path consists of a plurality of sub-paths, and thus the information of a proposed trip path contains the information indicating the sub-paths of the first sub-path is received through the link for the first sub-path, and the information of the first sub-path may include an indicator indicating whether there exists a second sub-path subsequent to the first sub-path, and a link for the second sub-path.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: August 29, 2017
    Assignee: LG Electronics Inc.
    Inventors: Jaehyuk Choi, Hongbeom Ahn
  • Publication number: 20170222428
    Abstract: The magnetic coil driving circuit of the magnetic contactor according to the present invention comprises a semiconductor switch configured to open or close a circuit for magnetizing or demagnetizing a magnetic coil; a pulse width modulation unit configured to output a pulse signal as a control signal for turning on or off the semiconductor switch; a control unit configured to output a control signal for changing a pulse width of the pulse signal to the pulse width modulation unit; and a temperature detection and protection unit configured to detect a temperature inside the magnetic contactor, output an output signal for turning off the semiconductor switch when the temperature exceeds an allowable temperature, and control the semiconductor switch by the pulse signal from the pulse width modulation unit when the temperature is within the allowable temperature.
    Type: Application
    Filed: January 21, 2017
    Publication date: August 3, 2017
    Applicant: LSIS CO., LTD.
    Inventor: Jaehyuk CHOI
  • Publication number: 20170180658
    Abstract: A depth sensor and a 3D camera include a macro pixel that provides an output signal when light is received and a programmable concurrent detector (PCD) circuit that compares an electric signal provided by the macro pixel with a number of concurrence (NC) and determines a necessity of providing the output signal of the macro pixel. In addition, the depth sensor and the 3D camera may include a controller that measures a dark count of the macro pixel, changes the number of concurrence (NC) of the macro pixel, based on the dark count, and controls noise of the macro pixel. In addition, the depth sensor and the 3D camera may control the noise of the macro pixel, based on an external light count which is a noise signal generated due to the external light.
    Type: Application
    Filed: November 16, 2016
    Publication date: June 22, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaehyuk CHOI, Jinmyoung KIM, Jungwoo KIM