Patents by Inventor Woo Cha

Woo Cha 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: 20250115223
    Abstract: In a vehicular brake-by-wire system, when a motor needs to generate brake hydraulic pressure, but fails to drive due to a trouble with the motor, a failure in the controller, or the like, a driver operates a pneumatic cylinder by operating pneumatic valve switch, and a master cylinder operates by the operation of the pneumatic cylinder, thereby possibly generating brake hydraulic pressure for vehicular braking.
    Type: Application
    Filed: March 19, 2024
    Publication date: April 10, 2025
    Inventors: Hyeong Seop PARK, Chang Seop AN, Jong Woo CHA, Jung Min CHO, Jae Geun BANG, Seong Kweon JOO
  • Patent number: 11503268
    Abstract: A real-time broadcasting device includes a plurality of image capturing units arranged to capture images at the same time in different directions from the same point; an image selection unit for comparing the angle of view covered by each of the plurality of image capturing units and the gaze direction of a user terminal, and selecting an image of the image capturing unit, among the plurality of image capturing units, capturing images corresponding to the gaze direction of the user terminal; an image transmission unit for transmitting virtual reality images captured by the image capturing unit selected by the image selection unit to the user terminal in real time; and a gaze direction reception unit for receiving feedback about which direction the gaze direction of the user terminal viewing the virtual reality images is, and transmitting same to the image selection unit.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: November 15, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo Cha, Ta sik Chung
  • Patent number: 11492568
    Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: November 8, 2022
    Assignees: KEPCO NUCLEAR FUEL CO., LTD., SHL CO., LTD.
    Inventors: Min Young Park, Sang Jin Han, Ki Bum Park, Jung Woo Cha, Duk Hee Lee, Kyung Tae Kim, Pyeong Mo Yeo, Jeong Jin Jang, Sang Soon Choi
  • Publication number: 20220295035
    Abstract: A real-time broadcasting device includes a plurality of image capturing units arranged to capture images at the same time in different directions from the same point; an image selection unit for comparing the angle of view covered by each of the plurality of image capturing units and the gaze direction of a user terminal, and selecting an image of the image capturing unit, among the plurality of image capturing units, capturing images corresponding to the gaze direction of the user terminal; an image transmission unit for transmitting virtual reality images captured by the image capturing unit selected by the image selection unit to the user terminal in real time; and a gaze direction reception unit for receiving feedback about which direction the gaze direction of the user terminal viewing the virtual reality images is, and transmitting same to the image selection unit.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo CHA, Ta sik CHUNG
  • Patent number: 11412199
    Abstract: Present Invention provides a method of virtual reality image transition configured to implement frame synchronization by controlling transit time among image segmentation expressing virtual reality comprises, (a) determining a key frame distance (KFD) of image segmentation expressing a part of original image for implementing virtual reality, (b) implementing frame synchronization between image segmentation before and after transition by executing a transition of image segmentation only in a key frame among frames composing image segmentation, when reproduced image segmentation is transited as the user's gaze changes.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 9, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Ta Sik Chung, Dong Woo Cha
  • Publication number: 20220210390
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Patent number: 11325032
    Abstract: The present invention provides a virtual reality image playing device, the device comprising: a streaming image input unit for receiving, through streaming, one streaming image including multiple virtual reality images captured in different directions at an identical time and at an identical point; a streaming time operation unit for adding a play position of a currently playing virtual reality image to a reference time of a virtual reality image to be newly played; and an image playing unit for playing a streaming image, which has been streamed, on a display device. When virtual reality images captured in different directions are to be played as a gaze of a user changes, the virtual reality image playing device plays multiple virtual reality images by using one streaming image by performing a streaming time jump of a streaming image, using a reference time at which an individual virtual reality image starts.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: May 10, 2022
    Assignee: APLHACIRCLE CO., LTD.
    Inventors: Dong Woo Cha, Ta sik Chung
  • Patent number: 11321845
    Abstract: A method of virtual reality image segmentation and a virtual reality image reproducing device are disclosed. The method provides a step of determining the Play FOV of the image segmentation by adding a Guard FOV to the Temporary FOV covered by the temporary image segmentation, in the temporary image segmentation that divides the original image into Nth regions, a step of determining a Virtual Device FOV wider than a Device FOV of the head-mounted display by a predetermined Additional FOV and a step of starting a transit procedure of reproduced image segmentation among a plurality of image segmentation when a predetermined transit standard calculated using the Virtual Device FOV and Play FOV of reproduced image segmentation is satisfied.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: May 3, 2022
    Assignee: ALPHACIRCLE CO., LTD.
    Inventors: Ta Sik Chung, Dong Woo Cha
  • Patent number: 11310476
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 19, 2022
    Assignees: ALPHACIRCLE CO., LTD., UNIVERSITY-INDUSTRY COLLABORATION & CONSULTING FOUNDATION
    Inventors: Eui Hyun Shin, Ta Sik Chung, Dong Woo Cha
  • Patent number: 11301667
    Abstract: A smart user equipment (UE) connected to a head mounted display (HMD) worn on a user's head, for playing a video is disclosed. The smart UE includes an operation control module configured to recognize a predetermined user action by a sensor or a camera included in the smart UE and perform a control operation mapped to the user action. The smart UE enables the user to control an operation of the smart UE regardless of whether the HMD includes a separate control means by controlling the smart UE without removing the HMD through the operation control module.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 12, 2022
    Inventors: Eui Hyun Shin, Ta Sik Chung, Dong Woo Cha
  • Publication number: 20210394055
    Abstract: The present invention provides a virtual reality image playing device, the device comprising: a streaming image input unit for receiving, through streaming, one streaming image including multiple virtual reality images captured in different directions at an identical time and at an identical point; a streaming time operation unit for adding a play position of a currently playing virtual reality image to a reference time of a virtual reality image to be newly played; and an image playing unit for playing a streaming image, which has been streamed, on a display device. When virtual reality images captured in different directions are to be played as a gaze of a user changes, the virtual reality image playing device plays multiple virtual reality images by using one streaming image by performing a streaming time jump of a streaming image, using a reference time at which an individual virtual reality image starts.
    Type: Application
    Filed: September 2, 2021
    Publication date: December 23, 2021
    Applicant: ALPHACIRCLE CO., LTD.
    Inventors: Dong Woo CHA, Ta sik CHUNG
  • Publication number: 20210358131
    Abstract: A method of virtual reality image segmentation and a virtual reality image reproducing device are disclosed. The method provides a step of determining the Play FOV of the image segmentation by adding a Guard FOV to the Temporary FOV covered by the temporary image segmentation, in the temporary image segmentation that divides the original image into Nth regions, a step of determining a Virtual Device FOV wider than a Device FOV of the head-mounted display by a predetermined Additional FOV and a step of starting a transit procedure of reproduced image segmentation among a plurality of image segmentation when a predetermined transit standard calculated using the Virtual Device FOV and Play FOV of reproduced image segmentation is satisfied.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210360220
    Abstract: Present Invention provides a method of virtual reality image transition configured to implement frame synchronization by controlling transit time among image segmentation expressing virtual reality comprises, (a) determining a key frame distance (KFD) of image segmentation expressing a part of original image for implementing virtual reality, (b) implementing frame synchronization between image segmentation before and after transition by executing a transition of image segmentation only in a key frame among frames composing image segmentation, when reproduced image segmentation is transited as the user's gaze changes.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210312160
    Abstract: A smart user equipment (UE) connected to a head mounted display (HMD) worn on a user's head, for playing a video is disclosed. The smart UE includes an operation control module configured to recognize a predetermined user action by a sensor or a camera included in the smart UE and perform a control operation mapped to the user action. The smart UE enables the user to control an operation of the smart UE regardless of whether the HMD includes a separate control means by controlling the smart UE without removing the HMD through the operation control module.
    Type: Application
    Filed: October 24, 2019
    Publication date: October 7, 2021
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Publication number: 20210238495
    Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
    Type: Application
    Filed: December 11, 2020
    Publication date: August 5, 2021
    Applicants: KEPCO NUCLEAR FUEL CO., LTD., SHL CO., LTD.
    Inventors: Min Young Park, Sang Jin Ham, Ki Bum Park, Jung Woo Cha, Duk Hee Lee, Kyung Tae Kim, Pyeong Mo Yeo, Jeong Jin Jang, Sang Soon Choi
  • Publication number: 20210211631
    Abstract: Example embodiments relate to a virtual reality image playing device playing a plurality of virtual reality images to improve the quality of a predetermined area, the virtual reality image comprising, an image input module configured to receive the plurality of virtual reality images stitched from an original image created to realize virtual reality, a multi-rendering module configured to render the plurality of virtual reality images, a synchronization module configured to generate sync information to synchronize the plurality of virtual reality images and an image playing module configured to use the sync information to play the plurality of synchronized virtual reality images.
    Type: Application
    Filed: June 27, 2019
    Publication date: July 8, 2021
    Inventors: Eui Hyun SHIN, Ta Sik CHUNG, Dong Woo CHA
  • Patent number: 10575194
    Abstract: Systems, methods, and computer-readable media, for facilitating control of network loads are provided. In embodiments of the present invention, network data associated with a plurality of base stations within a communications network are monitored. Upon identifying that a network load associated with a base station exceeds a network load threshold, an indication that a user device utilizing the base station that exceeds the network load threshold to communicate should transfer to another base station that fails to exceed the network load threshold is provided.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 25, 2020
    Assignee: Sprint Communications Company L.P.
    Inventors: Bejoy Pankajakshan, Warren Bruce Cope, Jamie Paul Brocket, Tae-Woo Cha
  • Patent number: 10285074
    Abstract: Systems, methods, and computer-readable media, for facilitating control of network loads are provided. In embodiments of the present invention, network data associated with a plurality of base stations within a communications network are monitored. Upon identifying that a network load associated with a base station exceeds a network load threshold, an indication that a user device utilizing the base station that exceeds the network load threshold to communicate should transfer to another base station that fails to exceed the network load threshold is provided.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: May 7, 2019
    Assignee: Sprint Communications Company L.P.
    Inventors: Bejoy Pankajakshan, Warren Bruce Cope, Jamie Paul Brocket, Tae-Woo Cha
  • Patent number: 9571991
    Abstract: The systems and methods discussed herein enable telecommunications service providers to track opt-ins (consent) to premium service and goods purchases. An industry aggregator gateway may be employed to receive short codes in messages built by IP messaging applications capable of data transmission, and may transmit the messages to telecommunications service providers and receive purchase information associated with various short codes. At least some of this purchase information is displayed to users to obtain consent to the purchase, and the consent trail from the request to the acceptance of purchase information, including terms and charges, is tracked and stored.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 14, 2017
    Assignee: Sprint Communications Company L.P.
    Inventors: Namfon Brizendine, Tae-Woo Cha, Michael A. Gailloux, Adam Pickett
  • Patent number: 9555852
    Abstract: The present invention relates to a bicycle having a front wheel driving means. The bicycle having the front wheel driving means according to the present invention includes a frame, a front wheel, a rear wheel, a steering part, and a chain part, wherein opposite sides of the front wheel are provided with respective recoilers having respective one-way clutches therein, and the steering part is provided with a driving means for pulling a wire connected to each of the recoilers.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: January 31, 2017
    Assignees: SHINPYEONG INDUSTRIAL CO., LTD
    Inventor: Jin-woo Cha