Patents by Inventor Byung-Yun Choi

Byung-Yun 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).

  • Patent number: 11967044
    Abstract: Provided is a device for upscaling resolution based on a slice image, in which a low-resolution image is divided into a plurality of slice images so that a high-resolution image is generated. The device includes a convolution operation unit configured to convert a low-resolution input slice image into a high-resolution output slice image using a convolutional neural network. The convolutional neural network includes a cascading block configured to perform a convolution operation using a convolution filter having a predetermined size and a residual operation on an input feature map generated from the low-resolution input slice image to generate an output feature map, and an upscaling block configured to upscale the output feature map to generate the high-resolution output slice image.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 23, 2024
    Assignee: Silicon Works Co., Ltd.
    Inventors: Byung Cheol Song, Dong Yoon Choi, Ji Yun Park
  • Patent number: 11947744
    Abstract: The present disclosure relates to a device for providing augmented reality that can accurately recognize a writing tool such as an electronic pen to realize motion information of the writing tool over augmented reality contents, and a method for providing augmented reality using the same. According to some embodiments of the disclosure, an augmented reality device includes at least one transparent lens, a support frame supporting the at least one transparent lens, at least one display module configured to display augmented reality contents through the at least one transparent lens, a sensing module at a front of the support frame, and configured to generate image data, and a control module configured to receive motion-sensing signals of an electronic pen to detect motion information of the electronic pen, and configured to modulate the augmented reality contents so that the motion information of the electronic pen is includes therein.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hee Lee, Byung Choon Yang, Joo Woan Cho, Byeong Hwa Choi, Hae Yun Choi
  • Patent number: 9731749
    Abstract: The present disclosure relates to a power steering apparatus of a vehicle that includes: a rack housing configured to surround a rack bar and having an opening portion formed at one side thereof through which a steering shaft passes; a torque sensor cover that has a torque sensor therein and has a communicating hole formed therein through which the steering shaft passes and a first penetration portion having a first through-hole formed therein through which the fastening member passes; and a cover connecting member that has an insertion portion and a second penetration portion in order to connect the rack housing and the torque sensor cover, the insertion portion having an insertion hole formed therein where the opening portion is inserted and coupled and the second penetration portion having a second through-hole that is formed therein to correspond to the fastening hole and through which the fastening member passes.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 15, 2017
    Assignee: MANDO CORPORATION
    Inventors: Heung Ju Kim, Byung Yun Choi
  • Publication number: 20160339942
    Abstract: The present disclosure relates to a power steering apparatus of a vehicle that includes: a rack housing configured to surround a rack bar and having an opening portion formed at one side thereof through which a steering shaft passes; a torque sensor cover that has a torque sensor therein and has a communicating hole formed therein through which the steering shaft passes and a first penetration portion having a first through-hole formed therein through which the fastening member passes; and a cover connecting member that has an insertion portion and a second penetration portion in order to connect the rack housing and the torque sensor cover, the insertion portion having an insertion hole formed therein where the opening portion is inserted and coupled and the second penetration portion having a second through-hole that is formed therein to correspond to the fastening hole and through which the fastening member passes.
    Type: Application
    Filed: May 10, 2016
    Publication date: November 24, 2016
    Inventors: Heung Ju KIM, Byung Yun CHOI
  • Patent number: 8429991
    Abstract: Disclosed is a rack bush and a rack pinion type steering apparatus having the rack bush for a vehicle, which can smoothly support a load in an axial direction and a vertical direction of a rack bar so that it is possible to reduce abnormal abrasion of the rack bush, reduce a rattle noise caused by external force transferred through the rack bar during movement of the rack bar, and prevent damage to the rack bar and a pinion through distribution of the load due to an external impact on the shaft.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Mando Corporation
    Inventors: Heung-ju Kim, Sung-moo Heo, Byung-yun Choi
  • Patent number: 8307852
    Abstract: A pinion valve body and a vehicle pinion valve assembly with the valve body are disclosed. The pinion valve body has a lower sleeve integrally formed by a sintering process along with upper splines to block an oil leakage and thus there are no needs any more for the conventional separate lower sleeve as well as the associated machining of sleeve fitting areas on the valve body and the process of press-fitting such sleeve all together, thereby effectively reducing the general manufacturing steps and their cost.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: November 13, 2012
    Assignees: Mando Corporation, Halla Stackpole Corporation
    Inventors: Byung-yun Choi, Jong-sik Byeon, Geun-soo Choi, Byung-ki Moon, Ja-moon Ku, Ji-heon Choi
  • Patent number: 7896026
    Abstract: A filter includes top and bottom support frames, and one or more middle support frames, which are arranged in such a manner that a second stepped area recessed by a predetermined depth from the outer circumferential surfaces of the top and bottom support frames is formed by the top and bottom support frames and the middle support frames. A pressure control valve of an electronically controllable power steering apparatus includes: a hollow valve body having a first stepped area with a predetermined depth, the first stepped area being formed on the outer circumferential surface of the valve body, where a supply port is formed; and the above-mentioned filter, the filter being fitted in the first stepped area of the valve body. The filter can minimize change of pressure at the filter area while assuring smooth supply of the hydraulic fluid, and can reduce the number of parts, the number of fabricating steps, and the material costs of such a pressure control valve.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: March 1, 2011
    Assignee: Mando Corporation
    Inventor: Byung-yun Choi
  • Publication number: 20100251839
    Abstract: Disclosed is a rack bush and a rack pinion type steering apparatus having the rack bush for a vehicle, which can smoothly support a load in an axial direction and a vertical direction of a rack bar so that it is possible to reduce abnormal abrasion of the rack bush, reduce a rattle noise caused by external force transferred through the rack bar during movement of the rack bar, and prevent damage to the rack bar and a pinion through distribution of the load due to an external impact on the shaft.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: Heung-Ju KIM, Sung-moo Heo, Byung-yun Choi
  • Publication number: 20100155172
    Abstract: A hydraulic power steering apparatus for a vehicle is disclosed. The hydraulic power steering apparatus for a vehicle forms a working fluid film between a piston reciprocating within a cylinder tube and a piston ring in order to provide an accurate auxiliary steering force by preventing leakage of a working fluid between right and left cylinders during the operation of a steering wheel by the driver.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 24, 2010
    Applicant: MANDO CORPORATION
    Inventors: Sung-moo HEO, Byung-yun CHOI, Jong-sik BYEON, Hyoung-woo KIM, Heung-ju KIM
  • Publication number: 20090308242
    Abstract: A pinion valve body and a vehicle pinion valve assembly with the valve body are disclosed. The pinion valve body has a lower sleeve integrally formed by a sintering process along with upper splines to block an oil leakage and thus there are no needs any more for the conventional separate lower sleeve as well as the associated machining of sleeve fitting areas on the valve body and the process of press-fitting such sleeve all together, thereby effectively reducing the general manufacturing steps and their cost.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 17, 2009
    Applicants: MANDO CORPORATION, HALLA STACKPOLE CORPORATION
    Inventors: Byung-yun CHOI, Jong-sik BYEON, Geun-soo CHOI, Byung-ki MOON, Ja-moon KU, Ji-heon CHOI
  • Publication number: 20080202605
    Abstract: A filter includes top and bottom support frames, and one or more middle support frames, which are arranged in such a manner that a second stepped area recessed by a predetermined depth from the outer circumferential surfaces of the top and bottom support frames is formed by the top and bottom support frames and the middle support frames. A pressure control valve of an electronically controllable power steering apparatus includes: a hollow valve body having a first stepped area with a predetermined depth, the first stepped area being formed on the outer circumferential surface of the valve body, where a supply port is formed; and the above-mentioned filter, the filter being fitted in the first stepped area of the valve body. The filter can minimize change of pressure at the filter area while assuring smooth supply of the hydraulic fluid, and can reduce the number of parts, the number of fabricating steps, and the material costs of such a pressure control valve.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 28, 2008
    Inventor: Byung-yun Choi
  • Patent number: 6386313
    Abstract: The present invention relates to a gear ratio variable type steering device which includes a variable gear mechanism between a steering wheel and a gear box for varying a gear ratio based on the speed of a vehicle. The variable gear mechanism includes an input shaft for receiving a rotational force of the steering wheel, an output shaft for transferring a rotational force to the gear box, a variable pulley installed in the outer portions of the input shaft and the output shaft and moved in the axial direction, a belt for connecting the variable pulley, and a motor for varying a gear ratio by moving the variable pulley in the axial direction.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: May 14, 2002
    Assignee: Mando Corporation
    Inventor: Byung-Yun Choi
  • Patent number: D476135
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: June 24, 2003
    Inventor: Byung Yun Choi