Notes

Picture in Picture function helps viewing of a second channel in a window while the primary channel is displayed full screen. The PIP may additionally be used to view that PC's Windows show within a window while the primary video channel or different set-top application such as an EPG is displayed full display screen. Accordingly, it remains extremely fascinating to have methodology and system to over come a variety of the disadvantages of prior art media centers.
“Copy no more” content material may be moved from the set-top of the present invention, to an external DTLA gadget corresponding to a DVD recorder. Moving “copy no more” content in the different direction just isn't supported since DVD recordings can't be deleted. In prior artwork media center PC's, the PC manages all storage of content whether or not protected or unprotected, encrypted or non-encrypted. The openness of the PC structure with its person accessible buses, and the ability to install any software program signifies that all present PC primarily based digital rights administration is topic to assault and fails to satisfy the necessary security guidelines.
If the current time exceeds the time stamp on the recorded program by 90 minutes, the content material can't be displayed. four shows the principle elements of the set-top system 102 of the current invention. The Front end 402 tunes and demodulates the sign coming from the MPVD 404 to supply a transport stream 406 which is routed to the conditional entry system 408. The conditional access system 408 will decrypt solely the content which the consumer is entitled to view and route the transport stream to the processing subsystem 410.
The commands to the PC are sent over the high-speed digital hyperlink to the set-top. These commands are interpreted by the PC as normal PC keyboard, mouse, PC Media Center distant management, or sport controller inputs. VNC is one method by which the PC's Windows desktop is reproduced in the set-top system frame buffer. This mode can be utilized if the PC is positioned remotely from the set-top, such as in one other room.
Placing the control operate within the set-top permits the development of a simple user-friendly interface that totally accesses all the unique set-top capabilities in addition to all the features of the PC. The person has unified entry to all content material regardless of copy protection standing and whether the content material got here from the MPVD or from a PC source such because the Internet. Applications working on either the set-top or the open structure PC can command the viewing, recording, or playback content whether protected or not. wdblwe0160jch nesn operating on either the set-top or the open architecture PC can command the making of copies, the transfer of copies and other copy management duties whether the content is protected or not. In all circumstances of protected content, the set-top system will make certain that the content is protected and the administration of copies is completed in conformance with the CCI bits.
This Record ID in non-volatile reminiscence is not going to be encrypted since it doesn't present any details about the controlled content or CCI bits and it is just used as a reference quantity to search out the correct report. The set-top system, in combination with any storage units linked to it both instantly or not directly via a related PC is certifiable by CableLabs and the DTLA as both a source and sink perform. A Source Function signifies that the set-top system can encrypt and transmit authentic protected content either reside from its in-built tuner or from a connected storage gadget to a licensed DTCP sink gadget. A Sink Function means that the set-top system can receive and decrypt protected content from a licensed DTCP source gadget and either display this content and/or report it to a related storage device. Software running on the set-top system and PC manages copy rights primarily based on the so referred to as Copy Control Information bits for content marked “copy free”, “copy once”, “copy no more”, and “copy never”.
The open structure PC additionally permits users to put in any software software. This violates security and content safety rules that permit only controlled certified software to be put in in the compliant receivers for controlled content material media. For instance the Open Cable specifications for set-tops running OCAP comprise requirements for guaranteeing that only certified software applications could be installed and run on such set-tops. The present state-of-the-art PC clearly violates such requirements by permitting the installation of nearly any software. In addition to guarding towards corruption or manipulation of the non-volatile memory, a Record-Digest of each file header on the onerous disk drive is also required. The Record-ID embedded in the file name and saved in the file header data must match.
Widely available software program emulators of the host processor can easily defeat anti-debug safety mechanisms. The overwhelming majority of commercially important PC software program applications have been cracked. This consists of software program DVD gamers, games, Microsoft DRM , Microsoft Xbox, and professional functions such as AutoCAD.
In this case, the VNC consumer should be adapted to run on the CPU and working system in the set-top system. In addition, the VNC consumer should be adapted to take benefit of any peripherals in the processing subsystem which will speed up the′ˆˆˆclient, for instance, a graphics accelerator. Playback content material from any networked PC or compatible set-top is supported. Copy protected controlled-content can only be played on a DTCP-IP device. The most popular embodiment of the present invention also includes features found on state-of-the-art set-top units. Their implementation on the set-top media system of the present invention is well known to those expert within the artwork.
When a compliant gadget is asked to perform a move operation for a specific managed content material, it first checks within its non-volatile memory to seek out the record of the managed content. If no entry is discovered then the compliance device will reject the move operation, in any other case the compliant system will move the content material in accordance to DFAST and PHILA compliance guidelines. It will then destroy the controlled content material related information including the associated Record Encryption key and CCI bits within the non-volatile reminiscence thus eradicating any report entry of the controlled content. Therefore by eradicating the managed content material associated information from the non-volatile memory another transfer for the same managed content material will fail.
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