Patents by Inventor Tae-Chan Kim

Tae-Chan 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).

  • Publication number: 20190259795
    Abstract: An image sensing device includes an image sensor including a first sub-pixel array and a second sub-pixel array. The first sub-pixel array includes a plurality of first pixels having a first color filter, and the second sub-pixel array includes a plurality of second pixels having a second color filter and a plurality of third pixels for phase detection. The image sensor may generate first pixel values from the first pixels, second pixel values from the second pixels and third pixel values from the third pixels. The image sensing device also includes an image processor suitable for generating a first image value corresponding to the first sub-pixel array based on the first pixel values and generating a second image value corresponding to the second sub-pixel array based on the first to third pixel values.
    Type: Application
    Filed: October 8, 2018
    Publication date: August 22, 2019
    Inventors: Cheol-Jon Jang, Tae-Chan Kim, Chang-Hee Pyeoun, Su-Min Kim, Seong-Hee Park, Jong-Heon Kim
  • Publication number: 20190238776
    Abstract: In an example embodiment, an image processing device includes a pixel array including pixels two-dimensionally arranged and configured to capture an image, each of the pixels including a plurality of photoelectric conversion elements and an image data processing circuit configured to generate image data from pixel signals output from the pixels. The image processing device further includes a color data processing circuit configured to extract color data from the image data and output extracted color data. The image processing device further includes a depth data extraction circuit configured to extract depth data from the image data and output extracted depth data. The image processing device further includes an output control circuit configured to control the output of the color data and the depth data.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Tae Chan Kim
  • Publication number: 20190191122
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 20, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk RYU, Tae Chan KIM, Jun Haeng LEE
  • Patent number: 10291872
    Abstract: In an example embodiment, an image processing device includes a pixel array including pixels two-dimensionally arranged and configured to capture an image, each of the pixels including a plurality of photoelectric conversion elements and an image data processing circuit configured to generate image data from pixel signals output from the pixels. The image processing device further includes a color data processing circuit configured to extract color data from the image data and output extracted color data. The image processing device further includes a depth data extraction circuit configured to extract depth data from the image data and output extracted depth data. The image processing device further includes an output control circuit configured to control the output of the color data and the depth data.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: May 14, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Tae Chan Kim
  • Patent number: 10237506
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 10211245
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Chan Kim, Dong Ki Min, Kwang Hyun Lee, Yo Hwan Noh, Se Hwan Yun, Dae Kwan Kim, Young Jin Kim, Wang Hyun Kim, Hyuk Soon Choi
  • Patent number: 9986188
    Abstract: A unit pixel of an image sensor includes a photoelectric conversion unit, a mode control unit, a first signal generation unit and a second signal generation unit. The photoelectric conversion unit generates photo-charges in response to incident light and provides the photo-charges to a first node. The mode control unit prevents the photo-charges from being discharged from the first node in a first operation mode, and generates a sensing current by discharging the photo-charges and generates a sensing voltage proportional to the sensing current in a second operation mode. The first signal generation unit generates an analog signal based on an amount of the photo-charges accumulated in the first node in the first operation mode. The second signal generation unit generates an on signal and an off signal based on a change of the sensing voltage in the second operation mode. The unit pixel provides various sensing outputs effectively.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: May 29, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Chan Kim, Moo-Young Kim
  • Patent number: 9986183
    Abstract: A lens distortion correction device and an application processor having the same include a distortion correction unit configured to correct a distorted image into an undistorted image and an image enhancement unit configured to improve the undistorted image using a high-frequency component of the distorted image.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 29, 2018
    Assignees: Samsung Electronics Co., Ltd., Chung-Ang University Industry—Academy Cooperation Foundation
    Inventors: Byung-Joon Baek, Joon-Ki Paik, Tae-Chan Kim, Dong-Gyun Kim, Jin-Ho Park
  • Patent number: 9973716
    Abstract: Provided are an imaging device implementing pseudo correlated double sampling (CDS), and an imaging method and a control method of the image device. The imaging device includes: a pixel array comprising a pixel configured to generate a current in response to incident light; a readout circuit configured to read out a plurality of output signals of the pixel, the plurality of output signals corresponding to a plurality of consecutive integration periods of the pixel within an aggregating period; and an aggregator configured to aggregate the plurality of output signals read out by the readout circuit to obtain a final aggregated output corresponding to illuminance for the aggregating period, wherein the readout circuit is configured to read out the plurality of output signals by, for each output signal, sampling a signal voltage of the pixel and sampling a subsequent reset voltage of the pixel and obtaining a difference therebetween.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yibing M. Wang, Hongyu Wang, Tae-Chan Kim
  • Publication number: 20180091755
    Abstract: In an example embodiment, an image processing device includes a pixel array including pixels two-dimensionally arranged and configured to capture an image, each of the pixels including a plurality of photoelectric conversion elements and an image data processing circuit configured to generate image data from pixel signals output from the pixels. The image processing device further includes a color data processing circuit configured to extract color data from the image data and output extracted color data. The image processing device further includes a depth data extraction circuit configured to extract depth data from the image data and output extracted depth data. The image processing device further includes an output control circuit configured to control the output of the color data and the depth data.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 29, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Tae Chan KIM
  • Patent number: 9910059
    Abstract: A method is provided for analyzing motion of a subject. The method includes receiving multiple events from an event-based sensor, the events corresponding to a luminance change of the subject; calculating velocities of the events and directions of the events; generating a motion analysis table comprising an X axis classified into multiple velocity sections, a Y axis classified into multiple direction sections, and multiple cells representing frequencies of events corresponding to combinations of the velocity sections and the direction sections; and determining a motion of the subject based on the motion analysis table.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 6, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Hyuk Bae, Kyu-Min Kyung, Tae-Chan Kim, Seong-Yeong Jeong, Shung-Han Cho
  • Patent number: 9903941
    Abstract: A time of flight (TOF) camera device and a method of driving the same are provided. The TOF camera device includes a pulse generator configured to generate a pulse signal, and generate a first photo gate signal and a second photo gate signal; a light source configured to irradiate an object with light emitted in synchronization with the pulse signal; and an image sensor configured to receive light reflected from the object in synchronization with the first photo gate signal during a first frame, and receive light reflected from the object in synchronization with the second photo gate signal during a second frame. The pulse generator is further configured to modulate the pulse signal so as to use a frequency of the light as a single frequency.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong-Yeong Jeong, Kyu-Min Kyung, Tae-Chan Kim, Kwang-Hyuk Bae, Shung-Han Cho
  • Patent number: 9894301
    Abstract: ACMOS image sensor includes a pixel array having a plurality of pixels. Each of the plurality of pixels includes: a photogate structure configured to be controlled based on a first gate voltage; and a sensing transistor including a charge pocket region formed in a substrate region, the sensing transistor being configured to be controlled based on a second gate voltage. Based on the first gate voltage, the photogate structure is configured to integrate charges generated in response to light incident on the substrate region. The sensing transistor is configured to adjust at least one of a threshold voltage of the sensing transistor and a current flow in the sensing transistor according to charges transferred from the photogate structure to the charge pocket region based on a difference between the first gate voltage and the second gate voltage.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Gu Jin, Min Ho Kim, Tae Chan Kim, Dong Ki Min, Sang Chul Sul, Tae Seok Oh, Kwang Hyun Lee, Tae Yon Lee, Ju Hwan Jung
  • Patent number: 9848153
    Abstract: In an example embodiment, an image processing device includes a pixel array including pixels two-dimensionally arranged and configured to capture an image, each of the pixels including a plurality of photoelectric conversion elements and an image data processing circuit configured to generate image data from pixel signals output from the pixels. The image processing device further includes a color data processing circuit configured to extract color data from the image data and output extracted color data. The image processing device further includes a depth data extraction circuit configured to extract depth data from the image data and output extracted depth data. The image processing device further includes an output control circuit configured to control the output of the color data and the depth data.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: December 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Tae Chan Kim
  • Publication number: 20170338258
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Application
    Filed: June 16, 2017
    Publication date: November 23, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae Chan KIM, Dong Ki MIN, Kwang Hyun LEE, Yo Hwan NOH, Se Hwan YUN, Dae Kwan KIM, Young Jin KIM, Wang Hyun KIM, Hyuk Soon CHOI
  • Patent number: 9823067
    Abstract: A method of calculating, using a depth sensor, a distance excluding an ambiguity distance including outputting a modulated light signal output from a light source to an object, receiving the modulated light signal reflected by the object, calculating a distance between the light source and the object using the reflected modulated light signal input to photo gates in conjunction with demodulation signals supplied to the photo gates, the calculating including calculating, using the modulated light signal, at least one distance farther than a maximum measurable distance, and setting the at least one distance to be equal to the maximum measurable distance may be provided. A range of the distance farther than the maximum measurable distance can be determined according to a duty ratio of the modulated light signal.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Ki Min, Wang Hyun Kim, Sun Hwa Jung, Tae Chan Kim, Hye Kyoung Jung
  • Patent number: 9805184
    Abstract: A method of unlocking an electronic device based on motion recognitions generates motion information by detecting a user's motion, calculates optical flows based on the motion information, converts the optical flows into a code by sorting and grouping the optical flows based on predetermined reference directions, generates a comparison result indicating whether the code is consistent with a predetermined password by comparing the code with the predetermined password, and determines whether to unlock the electronic device based on the comparison result.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 31, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Hyuk Bae, Kyu-Min Kyung, Tae-Chan Kim, Seong-Yeong Jeong, Shung-Han Cho
  • Patent number: 9769408
    Abstract: An apparatus for controlling a pixel output level includes a column signal line connected to an output node of at least one pixel sensor. The apparatus includes a load circuit is connected between the column signal line and a ground terminal. The apparatus also includes a level adjusting circuit configured to adjust a voltage level of a pixel signal output from the at least one pixel sensor to the column signal line based on a correction target value.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-Hong Kim, Min-Jin Kong, Tae-Chan Kim
  • Patent number: 9711553
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Chan Kim, Dong Ki Min, Kwang Hyun Lee, Yo Hwan Noh, Se Hwan Yun, Dae Kwan Kim, Young Jin Kim, Wang Hyun Kim, Hyuk Soon Choi
  • Patent number: 9693001
    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: Grant
    Filed: August 11, 2016
    Date of Patent: June 27, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moo Young Kim, Tae Chan Kim, Jae Cheol Yun, Seog Heon Ham