Patents by Inventor Chang-su Han

Chang-su Han 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: 11974901
    Abstract: Disclosed is a small animal intraventricular injection compensator for injecting a drug into a desired location through a syringe, the compensator including: a guide part provided with a guide hole into which a needle of a syringe is inserted; a body comprising an upper cavity provided inside thereof and a cradle provided to seat the guide part on an upper side thereof; and a fixation part integrally provided with the body or separately provided, and comprising a lower cavity provided to allow a head accommodation space, which a head of a small animal may enter into or exit from, to be provided inside thereof by corresponding to the upper cavity.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: May 7, 2024
    Assignees: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Sung Gurl Park, Kang Hyun Han, Chang Mook Lim, So Ra Park, Hong Su Lee, Jae Bong Lee, Jung Ho Noh, Sang Seop Han
  • Patent number: 11912102
    Abstract: An air conditioner for a vehicle including an air-conditioning case divided into a plurality of air passageways by a separation wall. A heating heat exchanger is disposed inside the air-conditioning case and exchanges heat with air to heat the interior of the vehicle. A perforated member is disposed at a downstream side of the heating heat exchanger and has a plurality of perforated holes through which the air passing the heating heat exchanger passes, and a partition wall is disposed between the heating heat exchanger and the perforated member to divide the air passageway of the air-conditioning case into a plurality of air passageways, wherein the partition wall is formed integrally with the perforated member.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: February 27, 2024
    Assignee: HANON SYSTEMS
    Inventors: Dong Won Lee, Jong Su Kim, Jae Woo Ko, Young Keun Kim, Chang Soo Bae, Jong Min Lee, Gyu Ik Han
  • Patent number: 10506243
    Abstract: A video encoder and decoder are described. The encoder operates on luma data and chroma data. The luma data is split into two channels. The channel split can be based on frequency regions or based on even and odd lines. When the channel split is based on frequency regions, the encoder produces a channel with low frequency data and a channel with high frequency data. A third channel holds chroma data. The decoder recovers the split luma data and the third channel of chroma data. The decoder may then generate one or more pixels to be stored in a line buffer.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon Kim, Ki-won Yoo, Sung-dae Kim, Chang-su Han
  • Patent number: 10291915
    Abstract: A video encoding method includes: receiving an image; up-sampling the received image; and changing a sample value of an up-sampling region included in the up-sampled image and encoding the up-sampled image by using the changed sample value, wherein the up-sampling region is a region inserted into the received image by the up-sampling.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 14, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon Kim, Ki-won Yoo, Chang-su Han, Sang-kwon Na, Hyung-ju Chun
  • Patent number: 10244247
    Abstract: Provided are a method and an apparatus for decoding an image by accessing a memory by a block group. The method comprises checking information regarding a size of one or more blocks included in a bitstream of an encoded image, determining whether to group one or more blocks for performing decoding, based on the information regarding the size of the one or more blocks, setting a block group including one or more blocks based on the information regarding the size of the one or more blocks, and accessing a memory by the block group to perform a parallel-pipeline decoding process by the block group.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-sik Park, Myung-ho Kim, Sang-kwon Na, Ki-won Yoo, Chang-su Han
  • Patent number: 9773300
    Abstract: An image correction method includes: obtaining information regarding at least one of brightness and colors of pixels constituting an input image, the input image comprising a plurality of regions classified according to whether the at least one of the brightness and the colors of the pixels are substantially uniformly distributed in a corresponding region; determining a weight with respect to at least one pixel based on the obtained information; and correcting the input image with respect to the at least one pixel based on the determined weight.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: September 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-seok Min, Seung-ho Park, Jong-hyun Park, Il-soon Lim, Chang-su Han, Hyung-jun Park
  • Publication number: 20170150165
    Abstract: A decoding apparatus and a decoding method thereof are provided. The decoding apparatus includes a memory configured to store a reference image frame of a first definition that is decoded from a bit stream. The decoding apparatus further includes a decoder configured to determine, form the bit stream, a motion vector of a current block of a current image frame of a second definition, correct a size of the motion vector and a location of the current block based on a scaling factor, load, from the memory, a reference block that is the corrected motion vector away from the corrected location of the current block in the reference image frame, and decode the current image frame based on the reference block.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 25, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-kwon NA, Myung-ho KIM, Chan-sik PARK, Ki-won YOO, Chang-su HAN
  • Publication number: 20170134740
    Abstract: Provided are a method and an apparatus for decoding an image by accessing a memory by a block group. The method comprises checking information regarding a size of one or more blocks included in a bitstream of an encoded image, determining whether to group one or more blocks for performing decoding, based on the information regarding the size of the one or more blocks, setting a block group including one or more blocks based on the information regarding the size of the one or more blocks, and accessing a memory by the block group to perform a parallel-pipeline decoding process by the block group.
    Type: Application
    Filed: August 30, 2016
    Publication date: May 11, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-sik PARK, Myung-ho KIM, Sang-kwon NA, Ki-won YOO, Chang-su HAN
  • Publication number: 20170019672
    Abstract: Disclosed is a video data decoding method comprising receiving a bitsream comprising encoded image information; decoding an image based on the encoded image information and obtaining luma data allocated to luma channels comprising a plurality of channels and chroma data allocated to a chroma channel comprising one channel from data generated by decoding the image; merging the obtained luma data as luma data having one component; splitting the obtained chroma data into chroma data having a plurality of components; and reconstructing the image based on the luma data having one component generated by merging the obtained luma data and the split chroma data having the plurality of components.
    Type: Application
    Filed: December 17, 2014
    Publication date: January 19, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon KIM, Ki-won YOO, Sung-dae KIM, Chang-su HAN
  • Publication number: 20160035069
    Abstract: An image correction method includes: obtaining information regarding at least one of brightness and colors of pixels constituting an input image, the input image comprising a plurality of regions classified according to whether the at least one of the brightness and the colors of the pixels are substantially uniformly distributed in a corresponding region; determining a weight with respect to at least one pixel based on the obtained information; and correcting the input image with respect to the at least one pixel based on the determined weight.
    Type: Application
    Filed: February 18, 2015
    Publication date: February 4, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-seok MIN, Seung-ho PARK, Jong-hyun PARK, Il-soon LIM, Chang-su HAN, Hyung-jun PARK
  • Publication number: 20150311572
    Abstract: The present invention provides an apparatus for controlling the temperature of a battery, which is capable of cooling a battery such as a lithium ion battery and the like by using the circulation of a liquid refrigerant and controlling the temperature of the battery through an endothermic reaction or an exothermic reaction caused by a phase transformation process of the corresponding supersaturated liquid refrigerant.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 29, 2015
    Inventors: Si Young Sung, Beom Suck Han, Chang Su Han
  • Publication number: 20150256833
    Abstract: A video encoding method includes: receiving an image; up-sampling the received image; and changing a sample value of an up-sampling region included in the up-sampled image and encoding the up-sampled image by using the changed sample value, wherein the up-sampling region is a region inserted into the received image by the up-sampling.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon KIM, Ki-won YOO, Chang-su HAN, Sang-kwon NA, Hyung-ju CHUN
  • Patent number: 8682110
    Abstract: A method and apparatus for converting a resolution of a block-based image. The method includes: dividing a low resolution image frame into a plurality of blocks, each block having a predetermined size; performing motion prediction in a sub-pixel unit of each of the divided blocks and determining a motion vector in the sub-pixel unit; dividing the motion vector of the sub-pixel unit into a first motion vector having an integer pixel unit and a second motion vector having the sub-pixel unit; determining at least one low resolution reference block corresponding to each of the divided blocks by using the first motion vector having the integer pixel unit; converting each of the divided blocks into high resolution block by using the second motion vector having the sub-pixel unit and the one low resolution reference block; and generating a high resolution image frame by using each of the converted high resolution blocks.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: March 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gun-shik Shin, Se-hyeok Park, Jong-hyun Park, Chang-su Han
  • Patent number: 8525706
    Abstract: 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: Grant
    Filed: May 4, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-won Yoo, Chang-su Han, Yong-hoon Yu
  • Publication number: 20120314975
    Abstract: A method and apparatus for converting a resolution of a block-based image. The method includes: dividing a low resolution image frame into a plurality of blocks, each block having a predetermined size; performing motion prediction in a sub-pixel unit of each of the divided blocks and determining a motion vector in the sub-pixel unit; dividing the motion vector of the sub-pixel unit into a first motion vector having an integer pixel unit and a second motion vector having the sub-pixel unit; determining at least one low resolution reference block corresponding to each of the divided blocks by using the first motion vector having the integer pixel unit; converting each of the divided blocks into high resolution block by using the second motion vector having the sub-pixel unit and the one low resolution reference block; and generating a high resolution image frame by using each of the converted high resolution blocks.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gun-shik SHIN, Se-hyeok PARK, Jong-hyun PARK, Chang-su HAN
  • Publication number: 20110309958
    Abstract: 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: Application
    Filed: May 4, 2011
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-won YOO, Chang-su HAN, Yong-hoon YU
  • Publication number: 20080187043
    Abstract: A method and apparatus for encoding and/or decoding an image are provided. The method of encoding an image includes: generating a prediction block that is an intra or inter prediction value of a current block; calculating a color difference between the current block and the generated prediction block; and, encoding the current block by adjusting a quantization step, based on the calculated color difference. In this way, color distortion in a restored image that can occur when a color of a current block is incorrectly predicted can be prevented.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-gyoung AHN, Sung-kyu CHOI, Jae-hun LEE, Chang-su HAN
  • Patent number: 5231541
    Abstract: A driver for driving a lens holder mounted on at least a part of an optical system, comprises a pair of inner rods, and a pair of outer rods. The driver can be employed in an optical pickup and similar devices, and particularly in an optical pickup of a portable disk player or a disk player of a car which is usually subjected to severe external impact and demands for a lower power consumption.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: July 27, 1993
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Chang-su Han