Patents by Inventor In Cheol Yun

In Cheol Yun 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: 9257461
    Abstract: An image device including a pixel array and a controller, The pixel array having first pixels and second pixels and corresponding channel drivers. The controller may perform operations of a dynamic vision sensor (DVS), an ambient light sensor (ALS) and a proximity sensor (PS).
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: February 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soonik Cho, Moo-Young Kim, Minseok Oh, Taechan Kim, Jae-Cheol Yun
  • Publication number: 20160028981
    Abstract: An image processing device includes a switch signal generator, an amplifier, a ramp generator, and an attenuation control circuit. The switch signal generator generates switch control signals based on a level of an image signal that corresponds to a pixel signal output from a pixel. The amplifier includes a first input terminal and a second input terminal. The ramp generator generates a ramp signal. The attenuation control circuit adjusts an arrangement of capacitors according to the switch control signals to control whether to attenuate each of the pixel signal and the ramp signal, and transmits signals generated as a result of the adjusted arrangement to the first input terminal and the second input terminal.
    Type: Application
    Filed: June 4, 2015
    Publication date: January 28, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Ho LEE, Hae Sick SUL, Sin Hwan LIM, Kyung Min KIM, Ho Jin PARK, Jae Cheol YUN, Michael CHOI
  • Publication number: 20160019843
    Abstract: Aspects of embodiments of the present invention include a display device including: a display unit comprising a plurality of scan lines that extend in a row direction, a plurality of data lines that extend in a column direction, and a plurality of pixels coupled to the scan lines and the data lines; a scan driver configured to sequentially apply a scan signal of a gate-on voltage to the scan lines during a writing period for applying a data voltage to the pixels; and a data driver configured to apply a data voltage to the data lines during the writing period, wherein a first power source voltage supplying a driving current of the pixels is applied to the data lines during a period other than the writing period.
    Type: Application
    Filed: January 15, 2015
    Publication date: January 21, 2016
    Inventor: Cheol Yun Jeong
  • Publication number: 20160012775
    Abstract: An organic light emitting diode display includes a semiconductor pattern which includes a plurality of channel regions. A first gate insulating layer is on the semiconductor pattern, a first gate conductive layer is on the first gate insulating layer, a second gate insulating layer is on the first gate conductive layer, and a second gate conductive layer is on the second gate insulating layer. The channel regions include a first channel region that overlaps the first gate conductive layer and a second channel region that does not overlap the first gate conductive layer. The first channel region and the second channel region have different doping concentrations.
    Type: Application
    Filed: November 17, 2014
    Publication date: January 14, 2016
    Inventors: Cheol Yun JEONG, Jong Hyun CHOI
  • Publication number: 20150353034
    Abstract: A device for displaying fuel efficiency including: a plurality of sensors; an alternator; an engine control unit; a display unit configured to include at least one of an eco symbol displaying an instant amount of operation load, an eco gauge displaying average fuel efficiency, and a fuel efficiency system displaying instant fuel efficiency or average fuel efficiency; an equipment control unit configured to determine a current state of equipment, change and display the eco symbol of the display unit according to the current state of the equipment, calculate average fuel efficiency by using instant fuel efficiency and torque data calculated by the engine control unit, and display the calculated average fuel efficiency or instant fuel efficiency through the eco gauge and the fuel efficiency system of the display unit; and a memory unit configured to store the instant fuel efficiency and the average fuel efficiency.
    Type: Application
    Filed: January 22, 2014
    Publication date: December 10, 2015
    Inventors: Jeong Kwon JANG, Hong Cheol YUN
  • Publication number: 20150334326
    Abstract: There are provided an image sensor and a stacked structure thereof. The image sensor includes a pixel array in which a plurality of unit pixels for generating an output signal in accordance with incident light are arranged, a first amplifier having a first input dynamic range, and a second amplifier having a second input dynamic range that is larger than the first input dynamic range. One of the first and second amplifiers amplifies the output signal in accordance with the intensity of light.
    Type: Application
    Filed: February 6, 2015
    Publication date: November 19, 2015
    Inventors: Sin-hwan Lim, Jung-ho Lee, Hae-sick Sul, Jae-cheol Yun, Michael Choi
  • Publication number: 20150237274
    Abstract: A correlated double sampling (CDS) circuit may include a sampling circuit and a switching circuit. The CDS circuit may perform a CDS operation on a reset component of an input signal and an image component of the input signal based on a ramp signal, and the CDS circuit may generate an output signal. The switching circuit may include an auto-zero switch that connects a first input terminal receiving the input signal to an output node in response to an auto-zero control signal during an auto-zero interval. The switching circuit may connect a first terminal of the auto-zero switch to a reference voltage in order to cutoff a leakage current flowing to the auto-zero switch in response to a first boosting control signal during a first comparison interval and a second comparison interval. The output signal may be provided at the output node.
    Type: Application
    Filed: January 13, 2015
    Publication date: August 20, 2015
    Inventors: HAN YANG, SIN-HWAN LIM, KYOUNG-MIN KOH, JAE-CHEOL YUN, KWANG-HYUN LEE, SOON-IK CHO
  • Publication number: 20150194454
    Abstract: A vision sensor chip includes a photoelectric conversion element that generates a current based on an incident light, a current-voltage (I-V) converter that converts the current into a voltage, an AC coupling capacitor directly connected to the I-V converter, an open-loop amplifier that includes a reset switch and amplifies a voltage provided by the I-V converter via the AC coupling capacitor. An event detection block detects motion according to a change in the amplified output voltage and generates first and second detection signals. A reset signal generator generates a reset signal controlling operation of the reset switch in response to first and second control signals respectively related to the first and second detection signals.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 9, 2015
    Inventors: MOO YOUNG KIM, YUN HONG KIM, SEOK YONG HONG, TAE CHAN KIM, JAE CHEOL YUN
  • Publication number: 20150195463
    Abstract: An image sensor includes a pixel array in which a plurality of pixels, first and second row selection lines separated from each other, and first and second column lines separated from each other are disposed and a column selecting circuit configured to connect the first and second column lines using a column selection signal. The pixel array includes a first pixel which is connected to the first row selection line and the first column line and a second pixel which is disposed in the same row as the first pixel and connected to the second row selection line and the second column line.
    Type: Application
    Filed: October 14, 2014
    Publication date: July 9, 2015
    Inventors: Kyoung-Min KOH, Ju-Hyun KO, Han YANG, Jae-Cheol YUN, Kwang-Hyun LEE, Seon-Ju LEE
  • Patent number: 9016312
    Abstract: An apparatus for controlling the flow of a hydraulic pump of a construction machine according to the present disclosure includes: a pressure sensor detecting pressure signals corresponding to various control signal input values of the construction machine; a shuttle block including a plurality of shuttle valves dividing hydraulic lines connected with the pressure sensor into groups and extracting pressure oil of a hydraulic line under the highest pressure among hydraulic lines included in the corresponding group; auxiliary pressure sensors detecting the pressure of the pressure oil discharged from the shuttle block; electro proportional control valves in which opening rates are adjusted according to an applied signal and flows applied to signal lines are controlled to adjust discharge flows of main pumps; and a controller controlling the electro proportional control valves so that the opening rates of the electro proportional control valves are adjusted according to the magnitude of the pressure signal at the
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: April 28, 2015
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Hong Cheol Yun, Duc Woo Park
  • Publication number: 20150069218
    Abstract: An image device including a pixel array and a controller, The pixel array having first pixels and second pixels and corresponding channel drivers. The controller may perform operations of a dynamic vision sensor (DVS), an ambient light sensor (ALS) and a proximity sensor (PS).
    Type: Application
    Filed: July 21, 2014
    Publication date: March 12, 2015
    Inventors: Soonik CHO, Moo-Young KIM, Minseok OH, Taechan KIM, Jae-Cheol YUN
  • Publication number: 20150062397
    Abstract: An image sensor includes a pixel array including a plurality of pixels, a row driver configured to control an operation of each of the plurality of pixels, a voltage supply line connected to a reset transistor included in each of the plurality of pixels, and a voltage supply circuit which detects a signal from the voltage supply line and supplies one of a first voltage and a second voltage to the voltage supply line based on the signal from the voltage supply line.
    Type: Application
    Filed: August 5, 2014
    Publication date: March 5, 2015
    Inventors: Kyoung Min KOH, Kwang Hyun LEE, Shin Hoo KIM, Ju Ha KIM, Ji Yong KIM, Seok Yong PARK, Jae Cheol YUN, Jae Jin JUNG, Woong JOO
  • Publication number: 20150042859
    Abstract: A method of operating an image sensor includes generating a plurality of ramping up/down signals, and comparing a correlated double sampled pixel signal produced from an output of a pixel with a correlated double sampled first ramping up/down signal among the plurality of ramping up/down signals in a reset interval. The method further includes comparing the correlated double sampled pixel signal with the correlated double sampled first ramping up/down signal at one sampling time or more in an image interval, and a step of outputting a selected ramping up/down signal among the plurality of ramping up/down signals based on a result of the comparison.
    Type: Application
    Filed: July 23, 2014
    Publication date: February 12, 2015
    Inventors: Jung Ho LEE, Jin Woo KIM, Beom Soo PARK, Jae Cheol YUN
  • Publication number: 20150034803
    Abstract: Provided are an image sensor and a method of driving the same. The image sensor includes n optical black pixels which are arranged in the same horizontal line; and m comparators which are matched with the n optical black pixels, wherein n is a natural number greater than or equal to two, and m is a natural number greater than n.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Kyoung-Min KOH, Kwang-Hyun LEE, Ju-Ha KIM, Han YANG, Jae-Cheol YUN
  • Publication number: 20140336916
    Abstract: According to the present disclosure, there is provided a system for providing information about fuel efficiency of construction machinery, including: a TMS controller obtaining information about reference fuel efficiency through a communication network from a server, and providing the information about the reference fuel efficiency as display information; and an equipment controller calculating information about current fuel efficiency by analyzing operations of constituent elements of the construction machinery.
    Type: Application
    Filed: January 24, 2013
    Publication date: November 13, 2014
    Inventors: Hong Cheol Yun, Duck Woo Park
  • Publication number: 20140331858
    Abstract: The present disclosure relates to a method for controlling regeneration of diesel particulate filter in construction machinery. The regeneration controlling method for the diesel particulate filter of construction machinery according to the present disclosure includes: a first active generation operation of actively regenerating a diesel particulate filter (DPF) according to a predetermined first active regeneration schedule when a quantity of soot inside the DPF within is a predetermined allowance section; and a second active regeneration operation of actively regenerating the diesel particulate filter according to a second active regeneration schedule, which is different from the first active regeneration schedule, according to the quantity of soot when the quantity of soot exceeds the allowance section.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 13, 2014
    Inventors: Hong Cheol Yun, Yun Jung Choi
  • Patent number: 8874945
    Abstract: The present disclosure relates to a system and a method of remote management of a construction equipment for controlling transmission and reception of data of the construction equipment in a a key-off state.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: October 28, 2014
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Hong Cheol Yun, Jung Mug Shin, Duc Woo Park
  • Publication number: 20140204250
    Abstract: A method of operating an image processing system includes storing differences between first analog pixel signals and second analog pixel signals and converting the stored differences to one-bit digital signals, the first analog pixel signals being output from a plurality of pixels and corresponding to a previous frame, and the second analog pixel signals being output from the plurality of pixels and corresponding to a current frame.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 24, 2014
    Inventors: Moo Young KIM, Tae Chan KIM, Jae Cheol YUN, Seog Heon HAM
  • Publication number: 20140145067
    Abstract: An image sensor includes a first column pair and a second column pair among a plurality of columns of a pixel array, an analog-to-digital converter pair, and a switch arrangement circuit configured to connect the first column pair with the analog-to-digital converter pair in response to first switch control signals such that two rows among a plurality of rows in the pixel array are read during a single access time.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 29, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho SUH, Yu Jin PARK, Jin Ho SEO, Kwi Sung YOO, Seung Hyun LIM, Seog Heon HAM, Kyoung Min KOH, Han YANG, Jae Cheol YUN, Yong LIM, Jae Jin JUNG
  • Patent number: 8452495
    Abstract: The present disclosure relates to an apparatus for contingency controlling an engine rotational speed of a heavy construction equipment, which is capable of contingency controlling the speed of an engine when a controller of the heavy construction equipment such as an excavator does not operate normally. The apparatus for contingency controlling an engine rotational speed including a machine control unit generating a driving signal to control an operation of the engine by transferring a control value received from a control dial to an engine control unit may include: an instrument panel electrically connected with the engine control unit and allowing an operator to select and control a desired engine rotational speed because a control algorithm for the engine rotational speed is made into a database; and a connection switch electrically connecting the instrument panel and the engine control unit when the control dial or the machine control unit does not operate normally.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 28, 2013
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Duck Woo Park, Hong Cheol Yun