Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8964978 | Method and apparatus for efficiently fixing transformed part of content | Hyun-kwon Chung, Jun-bum Shin, Yun-Ho Choi, Su-hyun Nam | 2015-02-24 |
| 8806658 | Method of installing software for using digital content and apparatus for playing digital content | Choong Hoon Lee, JUN-CHAO YAO | 2014-08-12 |
| 8781113 | Decryption apparatus and method of decrypting ciphertext of the same | Hee Jae Park, Jong-ho Rhee | 2014-07-15 |
| 8347404 | Method, system, and data server for checking revocation of content device and transmitting data | Choong Hoon Lee, JUN-CHAO YAO | 2013-01-01 |
| 8255333 | Method of generating license, and method and apparatus for providing contents using the same | Jun-bum Shin, Chi-hurn Kim, Young-sun Yoon, Ji-Young Moon, Dave Ahn | 2012-08-28 |
| 8234493 | Method for transmitting content in home network using user-binding | Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Bong-seon Kim, Jae-heung Lee | 2012-07-31 |
| 8234718 | Method and apparatus for forbidding use of digital content against copy control information | Bong-seon Kim, Chang-sup Ahn, So-Young Lee, Ji-Young Moon | 2012-07-31 |
| 8225090 | Method and apparatus for inserting authentication code, and method and apparatus for using data through authentication | Yao Jun, Choong Hoon Lee | 2012-07-17 |
| 8204215 | Method and apparatus for encrypting data | Seong-Soo Kim, Sang-su Choi, So-Young Lee | 2012-06-19 |
| 8171376 | Method for protecting important data of contents and apparatus therefor | Choong Hoon Lee, Seong-Soo Kim, Chang-yeul Kwon | 2012-05-01 |
| 8078874 | Method and apparatus for transmitting data using authentication | Seong-Soo Kim, Chang-yeul Kwon | 2011-12-13 |
| 8041034 | Multi-streaming apparatus and multi-streaming method using temporary storage medium | Chi-hurn Kim, Jung-wan Ko | 2011-10-18 |
| 8015342 | Method of managing and restoring identifier of storage device and apparatus therefor | Chang-sup Ahn, So-Young Lee, Bong-seon Kim, Ji-Young Moon | 2011-09-06 |
| 7996322 | Method of creating domain based on public key cryptography | Myung-Sun Kim, Yang-lim Choi, Yong Jin Jang | 2011-08-09 |
| 7987361 | Method of copying and decrypting encrypted digital data and apparatus therefor | Hee-chul Han, Yun-sang Kim, Yang-lim Choi, Sung-hyu Han | 2011-07-26 |
| 7987367 | Method and apparatus for key agreement between devices using polynomial ring | JUN-CHAO YAO, Moon-young Choi | 2011-07-26 |
| 7874004 | Method of copying and reproducing data from storage medium | Sung-hyu Han, Yun-sang Kim, Yang-lim Choi, Hee-chul Han | 2011-01-18 |
| 7848526 | Method of receiving session key in home network and method of reproducing content using the same | Jae-heung Lee, Myung-Sun Kim, Sung-hyu Han, Bong-seon Kim, Young-sun Yoon | 2010-12-07 |
| 7802312 | Method of recording and/or reproducing data under control of domain management system | Yun-sang Kim, Yang-lim Choi, Sung-hyu Han, Hee-chul Han | 2010-09-21 |
| 7590865 | Method and apparatus for restriction use of storage medium using user key | Sung-hyu Han, Yun-sang Kim, Yang-lim Choi, Hoc-chul Han | 2009-09-15 |