Patents by Inventor Sang-gil Choi

Sang-gil Choi 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: 20240126831
    Abstract: A depth-wise convolution acceleration device using an MAC array processor structure according to the present invention may include a data output unit, which receives a data of each row of the image from the data buffer and inputs the data into convolution operation blocks while shifting the data N?1 times according to the kernel size (N×N) and a weight output unit, which receives the kernel data from the kernel buffer and sequentially inputs a weight value constituting the kernel data to each of the row convolution operation blocks, and inputs the weight delaying by N clocks if the row increases as N rows.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 18, 2024
    Inventors: Hyo Seung LEE, Seen Suk KANG, Sang Gil CHOI, Seang Hoon KIM, Yong Wook KWON
  • Publication number: 20240001741
    Abstract: A vehicle side structure including a rear impact beam mounted in a rear side door, a rear quarter section having a flange overlapping a rear portion of the rear impact beam, and a gusset aligned with the rear portion of the rear impact beam in an overlap area between the rear portion of the rear impact beam and the flange of the rear quarter section.
    Type: Application
    Filed: October 25, 2022
    Publication date: January 4, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Eon Pyo Kim, Sang Gil Choi, Soel Ki Choi
  • Patent number: 10899392
    Abstract: A side sill structure can be used with a vehicle mounted with opposite sliding doors. The vehicle includes a lower rail that is mounted at a lower side of a vehicle body in a front-rear direction of the vehicle body. The side sill structure includes a side sill that includes a side sill inner panel and a side sill outer panel coupled to define an opened cross section. The side sill inner panel is mounted on the vehicle body and extends in the front-rear direction. The side sill outer panel is coupled to the side sill inner panel to define a hollow portion between the side sill outer panel and the side sill inner panel. The side sill structure also includes a lower rail accommodating unit that is coupled to the side sill.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: January 26, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Huen-Sick Min, Sang-Gil Choi
  • Publication number: 20200223490
    Abstract: A side sill structure can be used with a vehicle mounted with opposite sliding doors. The vehicle includes a lower rail that is mounted at a lower side of a vehicle body in a front-rear direction of the vehicle body. The side sill structure includes a side sill that includes a side sill inner panel and a side sill outer panel coupled to define an opened cross section. The side sill inner panel is mounted on the vehicle body and extends in the front-rear direction. The side sill outer panel is coupled to the side sill inner panel to define a hollow portion between the side sill outer panel and the side sill inner panel. The side sill structure also includes a lower rail accommodating unit that is coupled to the side sill.
    Type: Application
    Filed: April 25, 2019
    Publication date: July 16, 2020
    Inventors: Huen-Sick Min, Sang-Gil Choi
  • Patent number: 10249051
    Abstract: An operation method of depth extracting camera system using multi focus image includes acquiring at least two or more images having different focused subject distances—each of the at least two or more images including a subject—through a single optical system which is included in the depth extracting camera system; and extracting depth for the subject by using a blur difference in the at least two or more images.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 2, 2019
    Assignee: CENTER FOR INTEGRATED SMART SENSORS FOUNDATION
    Inventors: Sang Gil Choi, Junho Mun, Dongsuk Kim, Chong Min Kyung
  • Publication number: 20170345175
    Abstract: Disclosed is a depth extracting method using a focus measure ratio in a depth extracting camera system including acquiring a plurality of images—each of the plurality of images including a subject—having different focused subject distances; calculating a focus measure ratio between the plurality of images; and extracting depth for the subject based on the focus measure ratio between the plurality of images.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Inventors: Dong Suk KIM, Sang Gil CHOI, Young Ki KIM
  • Publication number: 20170345176
    Abstract: An operation method of depth extracting camera system using multi focus image includes acquiring at least two or more images having different focused subject distances—each of the at least two or more images including a subject—through a single optical system which is included in the depth extracting camera system; and extracting depth for the subject by using a blur difference in the at least two or more images.
    Type: Application
    Filed: May 25, 2017
    Publication date: November 30, 2017
    Inventors: Sang Gil Choi, Junho Mun, Dongsuk Kim, Chong Min Kyung
  • Patent number: 9736392
    Abstract: A method for determining a distance between an image sensor and an object includes acquiring a first image for an object and a second image distinguished from the first image, using a cut-off filter for cutting off one of R G and B signals, and determining a distance between the image sensor and the object.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 15, 2017
    Assignee: Dual Aperture International Co., Ltd.
    Inventors: Sang Gil Choi, Jong Ho Park, Chong Min Kyung
  • Publication number: 20170034456
    Abstract: An image sensor includes both visible pixels and infrared pixels. The visible pixels produce signals indicative of light within a visible band received by the visible pixels, and the infrared pixels produce signals indicative of light within an infrared band received by the infrared pixels. A selective infrared (SIR) filter array is integrated on the image sensor. The SIR filter array includes SIR pixel filters that are positioned to filter out light within the infrared band propagating to the visible pixels. In this way, infrared crosstalk to the visible pixels can be reduced.
    Type: Application
    Filed: December 28, 2015
    Publication date: February 2, 2017
    Inventors: Chong-Min Kyung, Sang Gil Choi, Junho Mun, Taekun Woo, Andrew Augustine Wajs, David D. Lee
  • Patent number: 9523801
    Abstract: Disclosed is a dual aperture camera which includes a dual band filter and a CMOS image sensor (CIS). The dual band filter is adapted to filter light signals to receive a light signal of a first wavelength range and receive a light signal of a second wavelength range through a pin hole included therein. The CIS is adapted to process the light signal of the first wavelength range and the light signal of the second wavelength range received through the dual band filter.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 20, 2016
    Assignee: DUAL APERTURE INTERNATiONAL CO. LTD.
    Inventors: Sang Gil Choi, Jong Ho Park, Chong Min Kyung
  • Patent number: 9400920
    Abstract: A method for controlling a display screen of a mobile terminal includes acquiring a first image and a second image distinguished from the first image, using a cut-off filter provided in the camera attached to a front of the mobile terminal to cut off one of R (Red), G (Green) and B (Blue) signals, recognizing an object comprising a user's face or gesture based on the first image and second image, and controlling on/off of the display screen provided in the mobile terminal based on the result of the recognition.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: July 26, 2016
    Assignee: DUAL APERTURE INTERNATIONAL CO. LTD.
    Inventors: Sang Gil Choi, Chong Min Kyung
  • Publication number: 20160018574
    Abstract: Disclosed is a dual aperture camera which includes a dual band filter and a CMOS image sensor (CIS). The dual band filter is adapted to filter light signals to receive a light signal of a first wavelength range and receive a light signal of a second wavelength range through a pin hole included therein. The CIS is adapted to process the light signal of the first wavelength range and the light signal of the second wavelength range received through the dual band filter.
    Type: Application
    Filed: October 31, 2014
    Publication date: January 21, 2016
    Applicant: CENTER FOR INTEGRATED SMART SENSORS FOUNDATION
    Inventors: Sang Gil Choi, Jong Ho Park, Chong Min Kyung
  • Publication number: 20150347821
    Abstract: A method for controlling a display screen of a mobile terminal includes acquiring a first image and a second image distinguished from the first image, using a cut-off filter provided in the camera attached to a front of the mobile terminal to cut off one of R (Red), G (Green) and B (Blue) signals, recognizing an object comprising a user's face or gesture based on the first image and second image, and controlling on/off of the display screen provided in the mobile terminal based on the result of the recognition.
    Type: Application
    Filed: October 30, 2014
    Publication date: December 3, 2015
    Applicant: CENTER FOR INTEGRATED SMART SENSORS FOUNDATION
    Inventors: Sang Gil Choi, Chong Min Kyung
  • Publication number: 20150310605
    Abstract: A method for determining a distance between an image sensor and an object includes acquiring a first image for an object and a second image distinguished from the first image, using a cut-off filter for cutting off one of R G and B signals, and determining a distance between the image sensor and the object.
    Type: Application
    Filed: October 22, 2014
    Publication date: October 29, 2015
    Applicant: CENTER FOR INTEGRATED SMART SENSORS FOUNDATION
    Inventors: Sang Gil Choi, Jong Ho Park, Chong Min Kyung
  • Patent number: 6285376
    Abstract: A triangle traversing method includes a primary traversing and a secondary traversing wherein the primary and secondary traversings are orthogonally related to each other. In the primary traversing, a primary proceeding is performed for producing a reference point and if the primary proceeding passes over an edge of the triangle, a shifting is made to the outermost point related to the previous reference point and then the primary proceeding is again performed. In the secondary traversing, outward proceedings from the reference point produced in the primary traversing are repeatedly performed until all corresponding line points within the triangle are traversed. The primary and secondary traversings are repeatedly and alternately performed, until all the points within the triangle are traversed.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: September 4, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-gil Choi, Young-cheul Wee
  • Patent number: 6111585
    Abstract: A texture mapping system and a texture mapping method are provided for generating pixels displayed on a screen by texture mapping. The texture mapping system includes a texture cache for storing texture image data fetched from a frame buffer memory with respect to one scanline, in which the texture cache comprises a column structure composed of a tag region where an image coordinate value (u, v) of the texture image data is stored, a refill line region where the texture image data corresponding to the image coordinate value of the tag region is stored, and an effective bit region indicating whether data of the refill line region is accessed. The texture cache also has a row structure in which the number of rows is the same as the number texture image patch data with respect to an image of a maximum length covering at least one scanline to be texture mapped, to store texture image patch data to be texture mapped.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 29, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-gil Choi
  • Patent number: 5953015
    Abstract: A fast and simple circuit for generating the MIP map LOD (level of detail) uses a look-up table (LUT) that stores values (1/2)log.sub.2 (X.sup.2 +Y.sup.2), wherein: (1) X and Y are in a single quadrant of the (X, Y) plane, for example, X.gtoreq.0, Y.gtoreq.0; (2) X.ltoreq.Y or Y.ltoreq.X; and (3) X or Y are in a predetermined interval, for example, 1.gtoreq.X.gtoreq.2; the interval is smaller than the maximum range of X or Y respectively.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 14, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Gil Choi
  • Patent number: 5555359
    Abstract: An anti-aliasing method greatly reduces the required size of the look-up table (LUT) memory space. The LUT memory is divided into four partitions and the four partitions are partitioned in parallel. This method allows for a great reduction in the amount of memory which needs to be incorporated into an application-specific integrated circuit (ASIC) which results in lower costs.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: September 10, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-gil Choi, Jun-hyoung Cho, Young-cheul Wee
  • Patent number: 5544294
    Abstract: In a computer graphics system, a method for generating a subpixel mask for polygon edges directly by an operation without using a look-up table, includes the steps of forming subblocks by dividing a pixel into n subpixels depending on the slope of the polygon edge, calculating subblock coverage which is a distance from the pixel boundary to the intersection point of n subblocks and polygon edge, and generating an n.times.n subpixel mask depending on the calculated subblock coverage. In an apparatus using the method, edge-generated aliasing is removed.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: August 6, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-hyoung Cho, Sang-gil Choi, Young-cheul Wee