Patents by Inventor Seunghyeong Lee

Seunghyeong Lee 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: 11937026
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device, that a remote control transmitted to the playback device an instruction configured to cause a modification to operation of the playback device while the playback device displays the replacement media content; (iii) determining, by the playback device based on the instruction, an overlay that the playback device is configured to provide for display in conjunction with the modification; (iv) determining, by the playback device, a region within a display of the playback device corresponding to the overlay; and (v) modifying, by the playback device, a transparency of the region such that the overlay is visible through the replacement media content when the playback device provides the overlay for display.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: March 19, 2024
    Assignee: Roku, Inc.
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D. Scherf
  • Patent number: 11895370
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device that while the playback device is displaying the replacement media content a remote control transmitted an instruction to a media device that provides media content to the playback device; (iii) determining, by the playback device, a playback-modification action corresponding to the instruction and the media device; and (iv) modifying, by the playback device, playback of the replacement media content in accordance with the playback-modification action.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: February 6, 2024
    Assignee: Roku, Inc.
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D Scherf
  • Patent number: 11812103
    Abstract: When a device is playing out a first media stream, the device determines a target time for beginning playout of a second media stream in place of the first media stream. The device then starts a stream-transition process that is expected to take anywhere from a minimum expected transition duration to a maximum expected transition duration, and the device starts the transition process in advance of the determined target time by the maximum expected transition duration, to help ensure timely starting of playout of the second media stream. Further, for an uncertainty period that extends from the minimum expected transition duration after the starting to the maximum expected transition duration after the starting, the device generates and plays a sequence of transition frames to help mask transition from the first media stream to the second media stream.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: November 7, 2023
    Assignee: ROKU, INC.
    Inventors: Chung Won Seo, Seunghyeong Lee
  • Publication number: 20230112570
    Abstract: When a device is playing out a first media stream, the device determines a target time for beginning playout of a second media stream in place of the first media stream. The device then starts a stream-transition process that is expected to take anywhere from a minimum expected transition duration to a maximum expected transition duration, and the device starts the transition process in advance of the determined target time by the maximum expected transition duration, to help ensure timely starting of playout of the second media stream. Further, for an uncertainty period that extends from the minimum expected transition duration after the starting to the maximum expected transition duration after the starting, the device generates and plays a sequence of transition frames to help mask transition from the first media stream to the second media stream.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 13, 2023
    Applicant: ROKU, INC.
    Inventors: Chung Won Seo, Seunghyeong Lee
  • Patent number: 11539987
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: December 27, 2022
    Assignee: ROKU, INC.
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Patent number: 11528514
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: December 13, 2022
    Assignee: ROKU, INC.
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Patent number: 11523149
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: December 6, 2022
    Assignee: ROKU, INC.
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Patent number: 11503366
    Abstract: When a device is playing out a first media stream, the device determines a target time for beginning playout of a second media stream in place of the first media stream. The device then starts a stream-transition process that is expected to take anywhere from a minimum expected transition duration to a maximum expected transition duration, and the device starts the transition process in advance of the determined target time by the maximum expected transition duration, to help ensure timely starting of playout of the second media stream. Further, for an uncertainty period that extends from the minimum expected transition duration after the starting to the maximum expected transition duration after the starting, the device generates and plays a sequence of transition frames to help mask transition from the first media stream to the second media stream.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: November 15, 2022
    Assignee: ROKU, INC.
    Inventors: Chung Won Seo, Seunghyeong Lee
  • Patent number: 11490154
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 1, 2022
    Assignee: ROKU, INC.
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Publication number: 20220224986
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device that while the playback device is displaying the replacement media content a remote control transmitted an instruction to a media device that provides media content to the playback device; (iii) determining, by the playback device, a playback-modification action corresponding to the instruction and the media device; and (iv) modifying, by the playback device, playback of the replacement media content in accordance with the playback-modification action.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D. Scherf
  • Publication number: 20220201265
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device, that a remote control transmitted to the playback device an instruction configured to cause a modification to operation of the playback device while the playback device displays the replacement media content; (iii) determining, by the playback device based on the instruction, an overlay that the playback device is configured to provide for display in conjunction with the modification; (iv) determining, by the playback device, a region within a display of the playback device corresponding to the overlay; and (v) modifying, by the playback device, a transparency of the region such that the overlay is visible through the replacement media content when the playback device provides the overlay for display.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 23, 2022
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D. Scherf
  • Patent number: 11323777
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device that while the playback device is displaying the replacement media content a remote control transmitted an instruction to a media device that provides media content to the playback device; (iii) determining, by the playback device, a playback-modification action corresponding to the instruction and the media device; and (iv) modifying, by the playback device, playback of the replacement media content in accordance with the playback-modification action.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 3, 2022
    Assignee: Roku, Inc.
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D. Scherf
  • Patent number: 11317143
    Abstract: When a device is playing out a media stream, the device determines a target time at which the device is to start playing out replacement content in place of a portion of the media stream. However, the device then detects that a starting time when the device starts playout of the replacement content is delayed from the target time by a delay period of duration P. In response, the device then reduces its playout of the replacement content by duration P, to help playout of the replacement content end at a desired time. For instance, the device could seek forward in playout of the replacement content by duration P and/or could remove one or more other portions of the replacement content to total a reduction of duration P.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: April 26, 2022
    Assignee: Roku, Inc.
    Inventors: Chung Won Seo, Seunghyeong Lee
  • Patent number: 11303870
    Abstract: In one aspect, an example method includes (i) providing, by a playback device, replacement media content for display; (ii) determining, by the playback device, that a remote control transmitted to the playback device an instruction configured to cause a modification to operation of the playback device while the playback device displays the replacement media content; (iii) determining, by the playback device based on the instruction, an overlay that the playback device is configured to provide for display in conjunction with the modification; (iv) determining, by the playback device, a region within a display of the playback device corresponding to the overlay; and (v) modifying, by the playback device, a transparency of the region such that the overlay is visible through the replacement media content when the playback device provides the overlay for display.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: April 12, 2022
    Assignee: Roku, Inc.
    Inventors: Kurt R. Thielen, Shashank Merchant, Peter Dunker, Markus K. Cremer, Chungwon Seo, Seunghyeong Lee, Steven D. Scherf
  • Patent number: 11245870
    Abstract: In one aspect, a method for use in connection with a content-presentation device including a first input buffer, a second input buffer, and an output buffer, wherein the content-presentation device is configured such that content from either the first input buffer or the second input buffer can be communicated to the output buffer, includes: (i) receiving, from the content-presentation device, an identifier associated with the content-presentation device; (ii) using mapping data to map the received identifier to a baseline input-to-output delay, which represents a time-period between when content is input into the first input buffer and output by the output buffer; and (iii) transmitting, to the content-presentation device, the mapped baseline input-to-output delay to the content-presentation device to facilitate the content-presentation device (a) determining an input-buffer switching delay, and (b) using the determined input-buffer switching delay to facilitate performing a content-modification operation.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: February 8, 2022
    Assignee: Roku, Inc.
    Inventors: Chungwon Seo, Seunghyeong Lee, Shashank Merchant
  • Publication number: 20220038770
    Abstract: When a device is playing out a first media stream, the device determines a target time for beginning playout of a second media stream in place of the first media stream. The device then starts a stream-transition process that is expected to take anywhere from a minimum expected transition duration to a maximum expected transition duration, and the device starts the transition process in advance of the determined target time by the maximum expected transition duration, to help ensure timely starting of playout of the second media stream. Further, for an uncertainty period that extends from the minimum expected transition duration after the starting to the maximum expected transition duration after the starting, the device generates and plays a sequence of transition frames to help mask transition from the first media stream to the second media stream.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Inventors: Chung Won Seo, Seunghyeong Lee
  • Patent number: 11228798
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: January 18, 2022
    Assignee: Roku, Inc.
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Publication number: 20210409794
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Application
    Filed: February 19, 2021
    Publication date: December 30, 2021
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Publication number: 20210409807
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Application
    Filed: February 19, 2021
    Publication date: December 30, 2021
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist
  • Publication number: 20210409795
    Abstract: One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.
    Type: Application
    Filed: February 19, 2021
    Publication date: December 30, 2021
    Inventors: Shashank Merchant, Bruce William Randall, Brian Johnson, Chungwon Seo, Seunghyeong Lee, Paul Jeffrey Holmquist