Patents by Inventor Hyunil Cho

Hyunil Cho 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).

  • Video call method and electronic device supporting the method
    Patent number: 9491401
    Abstract: A video call method is provided, including forming a video call channel in an electronic device, outputting a screen including a first image received through the video call channel, determining whether a second image being transmitted through the video call channel is displayed on the screen based on image information of the second image, and displaying the second image on the screen according to the determination, and an electronic device supporting the video call method.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: November 8, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Taewon Do, Kyuhan Kang, Kichoon Gong, Sangki Kang, Sangwook Shin, Sungwan Youn, Chulhwan Lee, Woonhyun Jung, Hyunil Cho
  • VIDEO CALL METHOD AND ELECTRONIC DEVICE SUPPORTING THE METHOD
    Publication number: 20140368600
    Abstract: A video call method is provided, including forming a video call channel in an electronic device, outputting a screen including a first image received through the video call channel, determining whether a second image being transmitted through the video call channel is displayed on the screen based on image information of the second image, and displaying the second image on the screen according to the determination, and an electronic device supporting the video call method.
    Type: Application
    Filed: August 18, 2014
    Publication date: December 18, 2014
    Inventors: Taewon Do, Kyuhan Kang, Kichoon Gong, Sangki Kang, Sangwook Shin, Sungwan Youn, Chulhwan Lee, Woonhyun Jung, Hyunil Cho
  • Photochromic fluorescent polymer and preparation method thereof
    Patent number: 7135132
    Abstract: The present invention relates to a photochromic fluorescent polymer and a preparation method thereof, and more particularly, to a photochromic fluorescent polymer having bonds between diarylethenes and aryethene-vinylene precursors with a weight average molecular weight of 500 to 1,000,000, which exhibits highly improved photochromic and fluorescent characteristics compared to conventional photochromic fluorescent materials and excellent solubility to organic solvents, thus being applicable for photofunctional materials and information processing device such as optical recording, optical switches, non-destructive optical recording materials.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: November 14, 2006
    Assignee: Korea Research Institute Of Chemical Technology
    Inventors: Eunkyoung Kim, Hyunil Cho
  • Photochromic fluorescent polymer and preparation method thereof
    Publication number: 20030213942
    Abstract: The present invention relates to a photochromic fluorescent polymer and a preparation method thereof, and more particularly, to a photochromic fluorescent polymer having bonds between diarylethenes and aryethene-vinylene precursors with a weight average molecular weight of 500 to 1,000,000, which exhibits highly improved photochromic and fluorescent characteristics compared to conventional photochromic fluorescent materials and excellent solubility to organic solvents, thus being applicable for photofunctional materials and information processing device such as optical recording, optical switches, non-destructive optical recording materials.
    Type: Application
    Filed: April 28, 2003
    Publication date: November 20, 2003
    Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Eunkyoung Kim, Hyunil Cho