Topic High-bandwidth Digital Content Protection (HDCP) - какво е това?

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High-bandwidth Digital Content Protection (HDCP) - какво е това? was created by ciklon

Информация що е то от сервизно на тв TCL LCD32M61S3-MS19 ::

High-bandwidth Digital Content Protection (HDCP) is a form of Digital Rights
Management (DRM) developed by Intel Corporation to control digital audio and video
content as it travels across Digital Visual Interface (DVI) or High-Definition
Multimedia Interface (HDMI) connections. The specification is proprietary, and
creating an implementation of HDCP requires a license .HDCP is licensed by Digital
Content Protection, a subsidiary of Intel. In addition to paying fees, licensees
agree to limit the capabilities of their products. For example, high-definition
digital video content must be restricted to DVD quality on non-HDCP compliant video
outputs when requested by the source. DVD-Audio content is restricted to DAT quality
on non-HDCP digital audio outputs (analog audio outputs have no quality limits).
Licensees cannot allow their devices to make copies of content, and must design their
products in ways that "effectively frustrate attempts to defeat the content
protection requirements."
Each HDCP capable device has a unique set of keys; there are 40 keys, each 56 bits
long. These keys are confidential and failure to keep them secret may be seen as
a violation of the license agreement. For each set of keys a special key called a
KSV (Key Selection Vector) is created. Each KSV has exactly 20 bits set to 0 and
20 bits set to 1.


Местоположение на HDCP в тв Philips шаси LC4.9U AA:

- "Разни хора, разни идеали..." - Алеко Константинов
- "Аз знам, че нищо не знам" - Сократ

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Last edit: 26 Jul 2017 22:40 by ciklon.
26 Jul 2017 22:24 #1

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