Patents by Inventor Yong-hoon YU
Yong-hoon YU 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).
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Publication number: 20240140289Abstract: An automatically operatable electric wing-out headrest includes a motor having a lead screw configured to adjust forward-and-rearward rotation of wing-out pads respectively mounted on the opposite sides of a headrest body, a first slider coupled to the lead screw so as to be movable upwards and downwards, a second slider configured to contact the first slider so as to be movable forwards and rearwards, and a wing-out link connected to the second slider to rotate a wing-out frame.Type: ApplicationFiled: March 3, 2023Publication date: May 2, 2024Inventors: Sang Uk Yu, Tae Hoon Lee, Sang Ho Kim, Seung Young Lee, Jun Namgoong, Yong Jun Shin
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Publication number: 20240140288Abstract: An electric headrest sliding device includes a slider configured to be movable upwards and downwards by driving of a motor, a front frame of a headrest, and a rotation link configured to connect the slider to the front frame, wherein the rotation link is rotated forwards or rearwards to push or pull the front frame during upward-and-downward movement of the slider, thereby accurately adjusting the front and rear positions of the headrest.Type: ApplicationFiled: March 3, 2023Publication date: May 2, 2024Inventors: Sang Uk Yu, Tae Hoon Lee, Sang Ho Kim, Seung Young Lee, Jun Namgoong, Yong Jun Shin
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Publication number: 20240062698Abstract: A display driver integrated circuit (IC) includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.Type: ApplicationFiled: October 30, 2023Publication date: February 22, 2024Inventors: Byoungyoon JANG, Yong Hoon YU, Se Whan NA, Jong-Hee NA, Hyeonsu PARK
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Patent number: 11810495Abstract: Disclosed is a display driver integrated circuit (IC) which includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.Type: GrantFiled: October 5, 2022Date of Patent: November 7, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Byoungyoon Jang, Yong Hoon Yu, Se Whan Na, Jong-Hee Na, Hyeonsu Park
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Publication number: 20230260445Abstract: Disclosed is a display driver integrated circuit (IC) which includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.Type: ApplicationFiled: October 5, 2022Publication date: August 17, 2023Inventors: Byoungyoon JANG, Yong Hoon YU, Se Whan NA, Jong-Hee NA, Hyeonsu PARK
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Patent number: 10867551Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.Type: GrantFiled: February 26, 2019Date of Patent: December 15, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Heon Ok, Yong Hoon Yu, Joo Hyuk Yum, Jae Youl Lee, Byoung Yoon Jang
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Patent number: 10810943Abstract: A display driver includes: a compensator configured to divide an input image into a plurality of blocks having a plurality of columns and a plurality of rows, generate a first current map in which a current magnitude corresponding to each of the plurality of blocks has been calculated, generate a second current map based on a cumulative summation of the current magnitude of the block located on each column of the first current map in a column direction, and generate output data by compensating pixel values of the input image based on a third current map in which the current magnitude of the block located on each row of the second current map has been adjusted with respect to a position in a row direction; and a data driver configured to generate an output image based on the output data and provide the output image to a display panel.Type: GrantFiled: May 3, 2019Date of Patent: October 20, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Joo-Hyuk Yum, Yong-Hoon Yu, Jae-Youl Lee
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Publication number: 20200058249Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.Type: ApplicationFiled: February 26, 2019Publication date: February 20, 2020Inventors: Ji Heon OK, Yong Hoon YU, Joo Hyuk YUM, Jae Youl LEE, Byoung Yoon JANG
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Patent number: 10536713Abstract: A video processing method includes generating a first down-sampled block by down-sampling a first block included in a first frame; generating a plurality of second down-sampled blocks by down-sampling a second block included in a second frame; selecting one of the plurality of second down-sampled blocks by comparing the first down-sampled block and each of the plurality of second down-sampled blocks; and determining, based on the first down-sampled block and the one selected second down-sampled block, a motion vector whereby the second block points to the first block, wherein the plurality of second down-sampled blocks are generated using down-sampling methods that are different from each other with respect to samples of the second block.Type: GrantFiled: July 28, 2016Date of Patent: January 14, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae-gyoung Ahn, Dong-yoon Kim, Yong-hoon Yu, Hyung-jun Lim, Seong-hoon Choi
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Publication number: 20190340980Abstract: A display driver includes: a compensator configured to divide an input image into a plurality of blocks having a plurality of columns and a plurality of rows, generate a first current map in which a current magnitude corresponding to each of the plurality of blocks has been calculated, generate a second current map based on a cumulative summation of the current magnitude of the block located on each column of the first current map in a column direction, and generate output data by compensating pixel values of the input image based on a third current map in which the current magnitude of the block located on each row of the second current map has been adjusted with respect to a position in a row direction; and a data driver configured to generate an output image based on the output data and provide the output image to a display panel.Type: ApplicationFiled: May 3, 2019Publication date: November 7, 2019Inventors: JOO-HYUK YUM, YONG-HOON YU, JAE-YOUL LEE
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Patent number: 10410572Abstract: A display device is provided. The display device may include pixels arranged in rows and columns, gate drivers connected to the rows of the pixels through gate lines, source drivers connected to the columns of the pixels through source lines, and a timing controller configured to control the gate drivers and the source drivers. The source driver associated with the specific pixel among the source drives may first supply an overdrive voltage corresponding to a final overdrive value to a source line connected to the specific pixel and then supply a source line voltage corresponding to a current value of the specific pixel to the source line. The overdrive controller may change weight values of at least two overdrive values based on a position of the specific pixel and interpolate the at least two overdrive values.Type: GrantFiled: June 11, 2018Date of Patent: September 10, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong Hoon Yu, Taehyun Kim, Byoungyoon Jang, JaeYoul Lee
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Publication number: 20190156728Abstract: A display device is provided. The display device may include pixels arranged in rows and columns, gate drivers connected to the rows of the pixels through gate lines, source drivers connected to the columns of the pixels through source lines, and a timing controller configured to control the gate drivers and the source drivers. The source driver associated with the specific pixel among the source drives may first supply an overdrive voltage corresponding to a final overdrive value to a source line connected to the specific pixel and then supply a source line voltage corresponding to a current value of the specific pixel to the source line. The overdrive controller may change weight values of at least two overdrive values based on a position of the specific pixel and interpolate the at least two overdrive values.Type: ApplicationFiled: June 11, 2018Publication date: May 23, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong Hoon YU, Taehyun KIM, Byoungyoon JANG, JaeYoul LEE
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Patent number: 10291927Abstract: A motion vector estimation method of a motion vector estimation apparatus are provided. The motion vector estimation method of the motion vector estimation apparatus includes: determining a motion vector of a current block by setting, in another frame, a local search area for searching a plurality of reference pixel blocks corresponding to the current block which is one of pixel blocks in a single frame; and finally determining one of the determined motion vector and a previous motion vector referred to in order to determine the local search area as a motion vector of the current block, based on sum of absolution difference (SAD) values of the reference pixel blocks included in the local search area.Type: GrantFiled: June 14, 2016Date of Patent: May 14, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-hoon Yu, Hyung-jun Lim, Seong-hoon Choi, Shin-haeng Kim, Tae-gyoung Ahn
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Publication number: 20170150170Abstract: A video processing method includes generating a first down-sampled block by down-sampling a first block included in a first frame; generating a plurality of second down-sampled blocks by down-sampling a second block included in a second frame; selecting one of the plurality of second down-sampled blocks by comparing the first down-sampled block and each of the plurality of second down-sampled blocks; and determining, based on the first down-sampled block and the one selected second down-sampled block, a motion vector whereby the second block points to the first block, wherein the plurality of second down-sampled blocks are generated using down-sampling methods that are different from each other with respect to samples of the second block.Type: ApplicationFiled: July 28, 2016Publication date: May 25, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae-gyoung AHN, Dong-yoon KIM, Yong-hoon YU, Hyung-jun LIM, Seong-hoon CHOI
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Publication number: 20170118483Abstract: A motion vector estimation method of a motion vector estimation apparatus are provided. The motion vector estimation method of the motion vector estimation apparatus includes: determining a motion vector of a current block by setting, in another frame, a local search area for searching a plurality of reference pixel blocks corresponding to the current block which is one of pixel blocks in a single frame; and finally determining one of the determined motion vector and a previous motion vector referred to in order to determine the local search area as a motion vector of the current block, based on sum of absolution difference (SAD) values of the reference pixel blocks included in the local search area.Type: ApplicationFiled: June 14, 2016Publication date: April 27, 2017Inventors: Yong-hoon YU, Hyung-jun LIM, Seong-hoon CHOI, Shin-haeng KIM, Tae-gyoung AHN
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Patent number: 9560377Abstract: A hierarchical motion prediction apparatus and method. The hierarchical motion prediction method splits a current frame and a reference frame into pixel groups, changes a pixel location of each pixel group, and selects one pixel, and thus resolutions of the current frame and reference frame are reduced. A motion vector of a down-sampled current block is obtained based on a down-sampled current frame and reference frame, and is expanded to a motion vector of an original resolution based on a down sampling rate.Type: GrantFiled: July 21, 2014Date of Patent: January 31, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyung-jun Lim, Tae-gyoung Ahn, Yong-hoon Yu, Seong-hoon Choi
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Patent number: 9516339Abstract: A hierarchical motion prediction apparatus and method. The hierarchical motion prediction method splits a current frame and a reference frame into pixel groups, changes a pixel location of each pixel group, and selects one pixel, and thus resolutions of the current frame and reference frame are reduced. A motion vector of a down-sampled current block is obtained based on a down-sampled current frame and reference frame, and is expanded to a motion vector of an original resolution based on a down sampling rate.Type: GrantFiled: July 21, 2014Date of Patent: December 6, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyung-jun Lim, Tae-gyoung Ahn, Yong-hoon Yu, Seong-hoon Choi
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Publication number: 20150023424Abstract: A hierarchical motion prediction apparatus and method. The hierarchical motion prediction method splits a current frame and a reference frame into pixel groups, changes a pixel location of each pixel group, and selects one pixel, and thus resolutions of the current frame and reference frame are reduced. A motion vector of a down-sampled current block is obtained based on a down-sampled current frame and reference frame, and is expanded to a motion vector of an original resolution based on a down sampling rate.Type: ApplicationFiled: July 21, 2014Publication date: January 22, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyung-jun LIM, Tae-gyoung AHN, Yong-hoon YU, Seong-hoon CHOI
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Patent number: 8525706Abstract: The method for encoding data includes: receiving data; determining one quantizer from among a plurality of quantizers having a same quantization step size and different offset values; and transmitting an indicator and a quantized coefficient related to the determined quantizer. The method for decoding data includes: receiving an indicator and a quantized coefficient related to a quantizer; determining one de-quantizer from among a plurality of de-quantizers by using the indicator; and acquiring reconstructed data by de-quantizing the quantized coefficient by using the determined de-quantizer.Type: GrantFiled: May 4, 2011Date of Patent: September 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-won Yoo, Chang-su Han, Yong-hoon Yu
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Publication number: 20110309958Abstract: Methods and apparatuses for encoding and decoding data. The method for encoding data includes: receiving data; determining one quantizer from among a plurality of quantizers having a same quantization step size and different offset values; and transmitting an indicator and a quantized coefficient related to the determined quantizer. The method for decoding data includes: receiving an indicator and a quantized coefficient related to a quantizer; determining one de-quantizer from among a plurality of de-quantizers by using the indicator; and acquiring reconstructed data by de-quantizing the quantized coefficient by using the determined de-quantizer.Type: ApplicationFiled: May 4, 2011Publication date: December 22, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-won YOO, Chang-su HAN, Yong-hoon YU