公开(公告)号：US10965936B2

公开(公告)日：2021-03-30

申请号：US16255630

申请日：2019-01-23

Applicant: MARKANY INC.

Inventor： So Won Kim ,  Hyungyu Kim ,  Tai Yoon Lee ,  Seung Yeob Chae

IPC: H04N17/00 ,  G06T1/00 ,  H04N7/00 ,  H04N21/422

Abstract: One aspect of the present invention discloses an apparatus for detecting additional data for preventing forgery of video data and displaying the video content. The apparatus includes a content input unit configured to receive the video content (the video content including the additional data), a display unit configured to display the video content, an additional data detector configured to detect the additional data from the video content (the additional data including a watermark), and a display controller configured to control a display screen of the video content according to an additional data detection result.

公开(公告)号：US10769252B2

公开(公告)日：2020-09-08

申请号：US15925774

申请日：2018-03-20

Applicant: MARKANY INC.

Inventor： So Won Kim ,  Ji Seop Moon ,  Min Soo Park ,  Hyungyu Kim ,  Euee Seon Jang

IPC: G06F21/16 ,  H04L9/08 ,  H04L9/32

Abstract: A method and apparatus for watermarking digital content and a data extraction method are disclosed. The digital content watermarking method includes: generating private and public keys corresponding to the user terminal; generating watermark data containing user identity information corresponding to the user terminal and user details associated with the watermark data; generating encrypted data by encrypting the watermark data and the user details with the private key; transmitting the watermark data, the encrypted data, and the public key to a server; receiving digital content when authorized by the server; and watermarking the digital content with the watermark data.