Notes

The content have to be deleted from the supply system if “copy no more” content is moved to a sink gadget. toshiba external hard drive problem -top system tracks “copy no more” content on its storage units through its program header data. The set-top system helps shifting “copy no more” content material in accordance with the CableLabs and DTCP specifications.
“Copy no more” content could also be moved from the set-top of the present invention, to an exterior DTLA system such as a DVD recorder. Moving “copy no more” content material in the other course isn't supported since DVD recordings can't be deleted. In prior artwork media center PC's, the PC manages all storage of content material whether protected or unprotected, encrypted or non-encrypted. The openness of the PC architecture with its user accessible buses, and the flexibility to install any software program means that all current PC primarily based digital rights management is topic to assault and fails to meet the necessary security rules.
Set-top firmware is written using software program obfuscation techniques to discourage reverse engineering of the software program after it has been decrypted and loaded in system memory. The boot TSOP software program accommodates a checksum that is signed and encrypted with the box key. The current invention protects audio/video content stored on a set-top box by recording figuring out data for each moved program in a separate non-removable, non-volatile memory system within the set-top field. A methodology as claimed in declare 12, wherein stated unsecure storage gadget comprises a tough disk drive. “Copy no more” content can be moved from one storage system to another.
Such systems require the power to encrypt managed content material video on these storage gadgets as a outcome of even when they are put in within a set-top box, they're nonetheless weak to being removed and copied. However the present state of the art doesn't support the viewing and replica command control of such protected content underneath the control an unprotected platform similar to an open architecture PC. Thus, such techniques cannot provide a fully built-in media middle person interface. Furthermore, software program working on both the set-top or the open architecture PC can be utilized to view and/or to order the making of copies of protected content. Any new software program put in in the set-top is encrypted and should include a signed certificate from a trusted source earlier than the software is put in within the system.
Digital streams which may be freely recorded, stored and copied are designated as “copy free”. More advanced models of set-top box may even embody a hard disk drive. The onerous disk drive is used to report and playback audio/video content delivered by the system operator. A user interface on the set-top field permits the person to specify which program or applications are to be recorded. For digital TV the audio/video content which is delivered by the system operator to the set-top field is encoded in a digital format such as MPEG-2 or MPEG-4. Recording and storage of this digital content can then be achieved by writing the digital information comprising the audio/video content material to the set-top field's onerous disk drive.
Also sure PC applications can send commands to the set-top system. For instance a PC software can command the set-top to change channels or to enter a programming event into the PVR event-recording record. The similar remote control system is used to regulate each the set-top system set-top and the PC. In the case of the state of the art Media Center, the remote management instructions are first despatched to the PC. Certain instructions are then redirected to the set-top or TV tuner system. In the case of the set-top system, the distant control instructions are first despatched to the set-top.
Playback is accomplished by studying the digital content material comprising the audio/video content material from the onerous disk drive. The hardware and software parts of a set-top box which permit the recording, storage and playback of audio/video content delivered to the set-top box from a service supplier is also known as a Personal Video Recorder . As part of the mechanism to trace and manage controlled-content media, a report ID is used. The Record ID is a 64 bit distinctive quantity that will be generated 1404 to be able to identify each recorded program. It might be added as a part of the file name of this system stored on the exhausting drive in addition to being saved within the file with the encrypted managed content.
If a match is found the user is notified 1514 and the person may be denied access 1516 to the content material. The method described hereinafter is much like the one described above but differs as follows. While this system header information continues to be included in this system file on the hard disk drive, the copy of this information normally saved within the non-volatile reminiscence is simply written to the non-volatile reminiscence after a “move” is performed.
5 reveals the video processing pipeline 500 for the tightly coupled configuration. The output 502 of the PC's graphics card is connected to the set-top system 102 which transmits an EDID string 504 back to the PC's graphics card. To the graphics card, the set-top system 102 seems to be a plug and play monitor. The present invention offers a set-top media system tailored to create an integrated media middle system when mixed with a PC. The resulting built-in media heart comprises a set-top media system and a PC system. For the PC system an odd off-the-shelf PC can be utilized offered it meets sure minimal system requirements.
Sophisticated hackers have been capable of crack such software protection mechanisms after which distribute their hacks to ordinary customers over the Internet. Software working on the set-top and the companion PC allows the person to make copies of content and manages copy rights as specified by the CCI copy control bits for content material marked “copy free”, “copy once”, “copy no more”, and “copy never”. Copies made to any storage peripheral connected to the PC are managed according to these rights. All digital certificates, cryptographic keys, and rights management management software shall be saved and executed solely under the safe management of the set-top. Any protected content such as “copy once”, “copy no more”, or “copy never” material shall be stored with the copy standing bits on the storage device with 3DES/AES encryption using a key that's unique to each set-top. This is to stop unauthorized copying or taking part in protected content on any gadget other than the unique set-top from which it was recorded.
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