发明名称 |
Method, apparatus and computer program for processing multimedia data signals |
摘要 |
An apparatus, method and a computer program for processing multimedia data is described, where the apparatus may include an input switch which may receive a plurality of transport stream packets corresponding to a plurality of digital multimedia data signals input thereto, and a packet identification (PID) filter unit which may selectively output a given set of TS packets to be demultiplexed from the received plurality of TS packets. A buffer and/or an external memory device may store at least some of the TS packets of the output given set. A conditional access/content protection (CA/CP) unit may read and decrypt the TS packets stored in the buffer, and may encrypt at least some of the decrypted TS packets for storage in the external memory device if the buffer becomes full, to prevent the TS packets to be stored in the external memory device from being copied.
|
申请公布号 |
US2005047404(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20040921818 |
申请日期 |
2004.08.20 |
申请人 |
KIM SEO-KYU;NOH MI-JUNG;KIM TAE-SU;LEE JUNG-SOOK;KIM HYUN-MIN |
发明人 |
KIM SEO-KYU;NOH MI-JUNG;KIM TAE-SU;LEE JUNG-SOOK;KIM HYUN-MIN |
分类号 |
H04N5/44;H04B1/16;H04H20/00;H04H20/28;H04H60/18;H04H60/23;H04N5/00;H04N5/76;H04N5/913;H04N7/16;H04N7/24;(IPC1-7):H04L12/56 |
主分类号 |
H04N5/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|