Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10515194 | Key rotation scheme for DRM system in dash-based media service | — | 2019-12-24 |
| 10411900 | Control word protection method for conditional access system | — | 2019-09-10 |
| 9154293 | Method and apparatus for compensating for variable symbol timing using cyclic prefix in non-synchronized OFDM system | Jae Ho Lee, Yang-Su Kim, Sang-Jung Ra, Dong Joon CHOI, Nam-Ho HUR | 2015-10-06 |
| 9027071 | Method and apparatus for inserting broadcast program by detecting available channel over hybrid fiber coax network or optical cable network | Yang-Su Kim, Jae Ho Lee, Sang-Jung Ra, Dong Joon CHOI, Nam-Ho HUR | 2015-05-05 |
| 8949595 | Mutual authentication apparatus and method in downloadable conditional access system | Eun Jung Kwon, Soon Choul KIM, Heejeong KIM, Young Ho JEONG, O Hyung Kwon +1 more | 2015-02-03 |
| 8861361 | Apparatus and method for fast load balancing bandwidth allocation based on binary search | Dong Joon CHOI, Nam-Ho HUR | 2014-10-14 |
| 8789088 | Method and apparatus for remotely installing and updating different security clients for broadcasting or communication channels | O-Hyung Kwon, Dong Joon CHOI, Soo-In Lee | 2014-07-22 |
| 8644505 | Remote entitlement processing module integration processing device and method | — | 2014-02-04 |
| 8621218 | Method and apparatus for mutual authentication in downloadable conditional access system | Eun Jung Kwon, Soon Choul KIM, Young Ho JEONG, Heejeong KIM, O Hyung Kwon +1 more | 2013-12-31 |
| 8583930 | Downloadable conditional access system, secure micro, and transport processor, and security authentication method using the same | Eun Jung Kwon, Soon Choul KIM, Hee Jeong Kim, Young Ho JEONG, O-Hyung Kwon +1 more | 2013-11-12 |
| 8533458 | Headend system for downloadable conditional access service and method of operating the same | Young Ho JEONG, Soon Choul KIM, Heejeong KIM, Eun Jung Kwon, O Hyung Kwon +1 more | 2013-09-10 |
| 8401040 | Apparatus and method for transforming cable channel | Woong Shik YOU, Joon-Young Jung, Yong-Seong Cho, O-Hyung Kwon, Soo-In Lee | 2013-03-19 |
| 8190887 | Cable network system and method for controlling security in cable network encrypted dynamic multicast session | O Hyung Kwon, Yun Jeong Song, Soo-In Lee | 2012-05-29 |
| 8032926 | Method of configuring hierarchical network of user group and resource group and key distribution center | Yun Jeong Song, Soo-In Lee | 2011-10-04 |
| 8019300 | Multi-channel tuning receiver and multi-channel tuning method thereof | Yang-Su Kim, Doh-Wook Kim, Yun Jeong Song, Soo-In Lee | 2011-09-13 |
| 7970005 | Channel bonding receiving apparatus and method for expanding channel bonding receiving band | Yang-Su Kim, Doh-Wook Kim, Yun Jeong Song, Soo-In Lee | 2011-06-28 |
| 7739518 | Method for securing DOCSIS cable modem against physical security attacks | Joon-Young Jung, Eun Jung Kwon, O-Hyung Kwon, Soo-In Lee | 2010-06-15 |
| 7669224 | ONU and method for converting/combining frequency, and apparatus and method for converting/combining frequency in CATV headend system | O-Hyung Kwon, Woongshik YOU, Soo-In Lee | 2010-02-23 |
| 7570763 | Method for subscribing service and distributing encryption key based on public-key encryption algorithm in digital CATV system | O-Hyung Kwon, Soo-In Lee | 2009-08-04 |