| 10609007 |
Method and apparatus for controlling transmission of content data |
Sang-su Choi, Yang-lim Choi, Jun-bum Shin, So-Young Lee, Ji-Young Moon |
2020-03-31 |
| 9590960 |
Method and apparatus for controlling transmission of content data |
Sang-su Choi, Yang-lim Choi, Jun-bum Shin, So-Young Lee, Ji-Young Moon |
2017-03-07 |
| 9015077 |
Method and apparatus for efficiently encrypting/decrypting digital content according to broadcast encryption scheme |
Bong-seon Kim, Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Jae-heung Lee |
2015-04-21 |
| 8983071 |
Key management method using hierarchical node topology, and method of registering and deregistering user using the same |
Sung-hyu Han, Bong-seon Kim, Myung-Sun Kim, Young-sun Yoon, Jae-heung Lee |
2015-03-17 |
| 8341402 |
Method of controlling content access and method of obtaining content key using the same |
Sung-hyu Han, Myung-Sun Kim, Young-sun Yoon, Bong-seon Kim, Jae-heung Lee |
2012-12-25 |
| 8301571 |
Method of packaging broadcast contents |
Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Jae-heung Lee, Bong-seon Kim +1 more |
2012-10-30 |
| 8229121 |
Method of tracing device keys for broadcast encryption |
Hak-soo Ju, Choong Hoon Lee, Young-sun Yoon, Jin-Mok Kim |
2012-07-24 |
| 8170215 |
Key management method for home network and home network device and system using the same |
Myung-Sun Kim, Su-hyun Nam, Sang-su Choi, Sung-hyu Han |
2012-05-01 |
| 8161296 |
Method and apparatus for managing digital content |
Myung-Sun Kim, Young-sun Yoon, Bong-seon Kim, Jae-heung Lee, Sung-hyu Han |
2012-04-17 |
| 8156344 |
Method and apparatus for backing up and restoring domain information |
Bong-seon Kim, Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Jae-heung Lee |
2012-04-10 |
| 8122487 |
Method and apparatus for checking proximity between devices using hash chain |
Jae-heung Lee, Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Bong-seon Kim |
2012-02-21 |
| 8005758 |
Encryption/decryption method and apparatus for controlling content use based on license information |
Myung-Sun Kim, Sung-hyu Han, Young-sun Yoon, Jae-heung Lee, Bong-seon Kim +1 more |
2011-08-23 |
| 7826615 |
Scrambling apparatus and method using conversion of motion vector information of video data |
Su-hyun Nam, Myung-Sun Kim, Yong Jin Jang, Jae-heung Lee, Sang-su Choi |
2010-11-02 |
| 7788728 |
Method and apparatus for limiting number of times contents can be accessed using hash chain |
Myung-Sun Kim, Su-hyun Nam, Yong Jin Jang, Jae-heung Lee |
2010-08-31 |
| 7653713 |
Method of measuring round trip time and proximity checking method using the same |
Sung-hyu Han, Myung-Sun Kim, Young-sun Yoon, Bong-seon Kim, Jae-heung Lee |
2010-01-26 |
