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Method and digital device for intelligently burning HDCP (High-bandwidth Digital-content Copy Protection) KEY

A digital device and intelligent technology, applied in information storage, static memory, instruments, etc., to achieve user-friendly, accurate and fast programming, and improve production efficiency

Inactive Publication Date: 2012-06-27
GUANGDONG CHANGHONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What's more, it is also possible to return the main board of the device to the factory for reprogramming the HDCP KEY

Method used

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  • Method and digital device for intelligently burning HDCP (High-bandwidth Digital-content Copy Protection) KEY
  • Method and digital device for intelligently burning HDCP (High-bandwidth Digital-content Copy Protection) KEY
  • Method and digital device for intelligently burning HDCP (High-bandwidth Digital-content Copy Protection) KEY

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] figure 1 The implementation flowchart of the method for intelligently burning HDCP KEY provided by the first embodiment of the present invention is provided, and is described in detail as follows:

[0057] In step S101, it is detected whether the digital device has information about the insertion of a mobile storage device, if so, step S102 is executed, otherwise, no processing is performed. The HDCP KEY file is pre-stored in the mobile storage device.

[0058] In the embodiment of the present invention, the digital device may be a TV set, a DV player, etc. Meanwhile, the digital device supports a USB interface, a serial port or a parallel port to realize communication with a mobile storage device. The mobile storage device is U disk, SD card, serial hard disk or parallel hard disk.

[0059] In step S102, the number N of used KEYs identified in the configuration file included in the HDCP KEY file is read.

[0060] In step S103, the data information of the N+1th KEY i...

Embodiment 2

[0064] figure 2 The implementation flowchart of the method for intelligently burning HDCP KEY provided by the second embodiment of the present invention is provided, and is described in detail as follows:

[0065] In step S201, it is detected whether there is information about the insertion of a mobile storage device in the digital device, and if so, step S202 is executed, otherwise, no processing is performed.

[0066] In step S202, the number N of used KEYs identified in the configuration file included in the HDCP KEY file is read.

[0067] In step S203, the number M of KEYs in the KEY data file included in the HDCP KEY file is read.

[0068] In step S204, it is judged whether M

[0069] By setting steps S203 and S204, the total number of KEYs in the KEY data file is compared with the number of KEYs that have been read, and when it is obtained that the KEY values ​​in the KEY da...

Embodiment 3

[0073] image 3 The implementation flowchart of the method for intelligently burning HDCP KEY provided by the second embodiment of the present invention is provided, and is described in detail as follows:

[0074] In step S301, it is detected whether the digital device has information about the insertion of a mobile storage device, if yes, step S302 is executed, otherwise, no processing is performed.

[0075] In step S302, the output prompts the user whether to burn HDCP KEY data information. If otherwise, the programming ends, and if so, step 303 is executed.

[0076] In the embodiment of the present invention, a burning confirmation key can be set in the factory menu, which is convenient for the manufacturer or the user to perform selection operations.

[0077] In step S303, the number N of used KEYs identified in the configuration file included in the HDCP KEY file is read.

[0078] In step S304, the number M of KEYs in the KEY data file included in the HDCP KEY file is ...

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Abstract

The invention discloses a method and a digital device for intelligently burning a HDCP (High-bandwidth Digital-content Copy Protection) KEY. The method comprises the following steps of: detecting whether a mobile storage device is inserted into a television, if so, executing the following steps: reading the number N of the used KEYs marked in a configuration file contained in a HDCP KEY file; reading the data information of the (N+1)th KEY in a KEY data file contained in the HDCP KEY file; and burning the read Key data information to the digital device. The method is efficient and simple; the KEY can be ensured to be burned into each digital device non-repeatedly without requiring a special HDCP KEY splitting and writing tool, therefore, not only the production efficiency is improved, but also the method and the digital device are convenient for a user. The method and the digital device for intelligently burning the HDCP KEY are suitable for the technical field of HDCP.

Description

technical field [0001] The invention belongs to the field of HDCP, in particular to an intelligent HDCP KEY method and digital equipment. Background technique [0002] HDMI (High Definition Multimedia Interface), a high-definition multimedia interface, is a global image and sound transmission interface that can transmit uncompressed audio signals and video signals. DVI (Digital Visual Interface), a digital video interface, is similar to the HDMI interface, but it can only transmit digital video signals. [0003] HDCP (High-bandwidth Digital Content Protection), high-bandwidth digital content protection, is to ensure that the high-definition signal transmitted by HDMI or DVI will not be illegally copied. A playback device or display device that supports HDCP protection technology will have a unique HDCP key, commonly known as HDCP KEY. Therefore, on digital devices with HDCP or DVI interfaces, in order to ensure the correct transmission of high-definition digital signals, a...

Claims

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Application Information

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IPC IPC(8): G11C16/10
Inventor 叶壮斌余海梁平茂
Owner GUANGDONG CHANGHONG ELECTRONICS
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