Invention Application
- Patent Title: CABLECARD WITH CONTENT MANIPULATION
- Patent Title (中): 包含内容操作的CABLECARD
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Application No.: PCT/US2004034348Application Date: 2004-10-18
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Publication No.: WO2005053156A2Publication Date: 2005-06-09
- Inventor: CANDELORE BRANT L , DEROVANESSIAN HENRY
- Applicant: SONY ELECTRONICS INC , CANDELORE BRANT L , DEROVANESSIAN HENRY
- Assignee: SONY ELECTRONICS INC,CANDELORE BRANT L,DEROVANESSIAN HENRY
- Current Assignee: SONY ELECTRONICS INC,CANDELORE BRANT L,DEROVANESSIAN HENRY
- Priority: US51947203 2003-11-12; US52493703 2003-11-25; US77487104 2004-02-09
- Main IPC: H04N7/16
- IPC: H04N7/16 ; H04N7/167 ; H03K
Abstract:
A CableCARD device for manipulation of a stream of data has an inband data input for receiving a stream of data from a host, the stream of data having a plurality of packets each having a packet identifier (PID) associated therewith, wherein the stream of data further has encrypted packets. A PID remapper selects certain of the packets for remapping of the packet identifiers associated with the selected packets, and remaps the packet identifiers of the selected packets so that the packets are associated with a new packet identifier. A decrypter decrypts the encrypted packets. An encrypter re-encrypts the decrypted packets. An inband data output sends the data stream with remapped packet identifiers back to the host. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
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