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).

  • Patent number: 8823845
    Abstract: A color filter array of an image sensor is disclosed. The color filter array includes a first filter to transmit wavelengths of a first region in a visible light region, a second filter to transmit wavelengths of a second region in the visible light region, a third filter to transmit wavelengths of a third region in the visible light region, and a mixed filter to transmit wavelengths of at least one of the first region, the second region and the third region, and wavelengths of an infrared region at the same time.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 2, 2014
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Tae Chan Kim, Kwang Hyuk Bae, Kyu-Min Kyung
  • 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: 20140204258
    Abstract: The image sensor includes a plurality of column lines, a plurality of active road circuits and a selection circuit. The plurality of column lines are each connected to a corresponding one of a plurality of pixels. The plurality of active road circuits are each connected to a corresponding one of the plurality of column lines. The selection circuit is configured to enable a portion of the plurality of active road circuits based on a plurality of column selection signals.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Byung-Jo KIM, Tae-Chan KIM, Kyoung Min KOH, Kyung-Min KIM
  • Publication number: 20140193069
    Abstract: In image processing, a color fringe is removed. The processing includes selecting a maximum gradient magnitude among gradient magnitudes for each of color components in an image, calculating a boundary of a dilated near-saturation region in the image, detecting a transition region in the image according to the maximum gradient magnitude and the dilated near-saturation region, and removing a color fringe from the transition region.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 10, 2014
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERSITY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: TAE CHAN KIM, WON HO CHO, HAE JIN JU, RAE HONG PARK, DONG KYU LEE
  • Publication number: 20140132808
    Abstract: A method for interpolating a color includes interpolating, in a first pixel of a first color, a first pixel value based on pixel values of pixels adjacent to the first pixel, skipping an interpolation on a second pixel of a second color corresponding to the first pixel of the first color; and generating an image based on the interpolated first pixel value and an uninterpolated pixel value of the second pixel.
    Type: Application
    Filed: October 2, 2013
    Publication date: May 15, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong Jae LEE, Byung Joon BAEK, Tae Chan KIM
  • Publication number: 20140125994
    Abstract: In one example of the inventive concepts, a motion sensor array device includes a wafer and at least two motion sensors implemented on the wafer, each of the at least two motion sensors including a plurality of motion sensor pixels to sense a motion of an object and generate motion image data. The motion sensor array device further includes at least two lenses respectively arranged on the at least two motion sensors, wherein the motion sensor array is implemented in one of a chip and a package.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 8, 2014
    Inventors: Tae Chan KIM, Moo Young KIM
  • Publication number: 20140118579
    Abstract: An image processing apparatus includes a first pixel, a digitization unit, and a correction unit. The first pixel includes a first photoelectric conversion layer for outputting a first electrical signal in response to received incident light, including light of a first color, light of a second color, and light of a third color; and a second photoelectric conversion layer disposed under the first photoelectric conversion layer and for outputting a second electrical signal in response to light transmitted through the first photoelectric conversion layer. The digitization unit generates first original data by digitizing the first electrical signal and generates second original data by digitizing the second electrical signal. The correction unit generates first corrected data corresponding to the light of the first color and second corrected data corresponding to the light of the second color, by respectively correcting the first original data and the second original data.
    Type: Application
    Filed: August 9, 2013
    Publication date: May 1, 2014
    Inventors: TAE-CHAN KIM, BYUNG-JOON BAEK, DONG-JAE LEE
  • Publication number: 20140103401
    Abstract: An image sensor is provided. The image sensor includes a well of a second conductivity type formed on an impurity layer of a first conductivity type, source and drain regions of the first conductivity type, formed in the well to be spaced apart from each other, a first photo diode of the first conductivity type formed in the well to overlap the source and drain regions, a second photo diode of the first conductivity type formed so as not to overlap the source and drain regions and formed to be adjacent to the first photo diode, and a gate electrode formed on the first and second photo diodes.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-Seok OH, Tae-Yon LEE, Young-Gu JIN, Min-Ho KIM, Tae-Chan KIM, Sang-Chul SUL, Kwang-Hyun LEE
  • Publication number: 20140104452
    Abstract: A sub pixel includes a photodetector and a column line output circuit. The photodetector is configured to output an electrical signal based on a detected amount of photons. The column line output circuit is configured to generate an output signal based on the electrical signal. The output signal is one of a current from a current source and a comparison signal indicative of binary output data.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Chan KIM, Min Ho KIM, Dong Ki MIN, Sang Chul SUL, Tae Seok OH, Kwang Hyun LEE, Tae Yon LEE, Jae Jin JUNG, Young Gu JIN
  • Publication number: 20140104469
    Abstract: An image sensor includes a pixel array and a row driver block. The pixel array includes a plurality of subpixel groups, each including a plurality of subpixels. Each of the plurality of subpixels is configured to generate a subpixel signal corresponding to photocharge accumulated in response to a photon. The row driver block is configured to generate a first control signal to control the subpixels included in each of the plurality of subpixel groups to accumulate the photocharge in parallel from a first time point to a second time point.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Inventors: Tae Chan KIM, Min Ho KIM, Dong Ki MIN, Sang Chul SUL, Tae Seok OH, Kwang Hyun LEE, Tae Yon LEE, Jung Hoon JUNG, Young Gu JIN
  • Publication number: 20140103413
    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: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    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
  • Publication number: 20140103192
    Abstract: A binary complementary metal-oxide-semiconductor (CMOS) image sensor includes a pixel array and a readout circuit. The pixel array includes at least one pixel having a plurality of sub-pixels. The readout circuit is configured to quantize a pixel signal output from the pixel using a reference signal. The pixel signal corresponds to sub-pixel signals output from sub-pixels, from among the plurality of sub-pixels, activated in response to incident light.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-Yon LEE, Ju Hwan JUNG, Seok Yong HONG, Tae-Chan KIM, Dong Ki MIN, Yoon Dong PARK, Sang-Chul SUL, Tae-Seok OH, Je Il RYU, Kwang-Hyun LEE, Young-Gu JIN
  • Publication number: 20140104473
    Abstract: An image sensor chip includes a first wafer and a second wafer. The first wafer includes an image sensor having a plurality of sub-pixels, each of which is configured to detect at least one photon and output a sub-pixel signal according to a result of the detection. The image processor is configured to process sub-pixel signals for each sub-pixel and generate image data. The first wafer and the second wafer are formed in a wafer stack structure.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Chan KIM, Min Ho KIM, Dong Ki MIN, Sang Chul SUL, Tae Seok OH, Kwang Hyun LEE, Tae Yon LEE, Jung Hoon JUNG, Young Gu JIN
  • Patent number: 8698929
    Abstract: The image sensor includes a plurality of column lines, a plurality of active road circuits and a selection circuit. The plurality of column lines are each connected to a corresponding one of a plurality of pixels. The plurality of active road circuits are each connected to a corresponding one of the plurality of column lines. The selection circuit is configured to enable a portion of the plurality of active road circuits based on a plurality of column selection signals.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Jo Kim, Tae Chan Kim, Kyoung Min Koh, Kyung-Min Kim
  • Publication number: 20140014818
    Abstract: A pixel array for an image sensor is provided. The pixel array includes a dark pixel which is configured to detect a local dark current in an active pixel block. The dark pixel is distinguished from an optical black pixel block which is arranged around the active pixel block and is configured to detect a global dark current. The pixel array is configured to compensate for dark shading, which is not compensated through global dark current compensation, using the local dark current output from the dark pixel which is arranged within the active pixel block.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Young Sung CHO, Dong Jae LEE, Tae Chan KIM, Tomer LIVNEH
  • Publication number: 20140009648
    Abstract: A method of operating an image sensor chip, which includes a color sensor pixel and a dynamic vision sensor (DVS) pixel sensing a motion of an object, is provided. The method includes enabling one of the color sensor pixel and the DVS pixel according to a mode selection signal and processing a pixel signal output from the enabled pixel.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 9, 2014
    Inventors: Tae Chan KIM, Moo Young KIM
  • Publication number: 20140009650
    Abstract: A method of operating an image sensor chip including a motion sensor pixel sensing a motion of an object and a depth sensor pixel, the method including the operations of activating either the depth sensor pixel or the motion sensor pixel according to a mode selection signal, and processing a pixel signal output by either the activated depth sensor pixel or the activated motion sensor pixel.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 9, 2014
    Inventors: Tae Chan KIM, Hae Kyoung KONG
  • Publication number: 20140002636
    Abstract: To measure the distance to points on an object by radiating a periodic amplitude-modulated optical signal to the object and detecting the phase difference between the radiated optical signal and a reflected optical signal from the object, a first photo-detection control signal is generated to control the radiation of the optical signal. A mask signal is generated such that the mask signal is activated at least during a shuttering duration for resetting the voltage level at a sensing node (associated with an operation of a previous frame). A second photo-detection control signal is generated based on the first photo-detection signal and the mask signal such that the second photo-detection signal is deactivated or masked at least during the shuttering duration.
    Type: Application
    Filed: May 14, 2013
    Publication date: January 2, 2014
    Inventors: Han-Soo Lee, Hae-Kyung Kong, Kyung-IL Kim, Min-Seok Oh, Tae-Chan Kim, Moo-Sup Lim
  • Publication number: 20130335602
    Abstract: A method of processing image signals comprises determining whether each of multiple units of input pixel data received from an image sensor is bad pixel data generated by a bad pixel of the image sensor or normal pixel data generated by a normal pixel of the image sensor, and performing interpolation to generate image data corresponding to the bad pixel using only normal pixel data and omitting bad pixel data.
    Type: Application
    Filed: June 28, 2013
    Publication date: December 19, 2013
    Inventors: Pyeong-Woo LEE, Dong-Jae LEE, Byung-Joon BAEK, Tae-Chan KIM
  • Patent number: 8611656
    Abstract: According to example embodiments, an image processing method includes estimating, using a location-based multi-illuminant estimation unit, candidate correlated color temperature values and location values of sub-units of an image, calculating, using the location-based multi-illuminant estimation unit, a correlated color temperature (CCT) matrix based on the candidate CCT values and the location values, and performing, using a color processing unit, color processing by using the CCT matrix.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: December 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Duck-Soo Kim, Ilya Vol, Tae-Chan Kim