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Systems and methods for providing digital rights management compatibility

A technology of digital rights and management systems, applied in the field of compatibility, can solve the problems of inconvenience between operators and users of communication equipment, incompatibility of DRM systems, etc., to achieve the effect of increasing experience

Inactive Publication Date: 2008-01-02
MACROVISION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CAs and license-based DRM systems are mutually incompatible
As a result, incompatibilities between communication devices cause inconvenience to operators and users

Method used

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  • Systems and methods for providing digital rights management compatibility
  • Systems and methods for providing digital rights management compatibility
  • Systems and methods for providing digital rights management compatibility

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Figure 1 illustrates a typical environment of an entertainment system 100 with multiple compatible DRM products. System 100 has a plurality of devices 110-170 that are compliant with one or more DRM systems including both conditional access devices (eg, CCI-compliant devices) and L-compliant devices. These devices respond to the interface shown in Figure 2 and perform the procedures shown in Figures 3-7 to provide compatibility between CCI-compliant and L-compliant devices.

[0032] Entertainment system 100 includes digital device 110 for receiving a digital bitstream containing program data from one or more service providers. These service or content providers may include terrestrial broadcasters, cable operators, direct broadcast satellite (DBS) companies, companies providing downloadable content over the Internet, or any similar content and / or service provider. Program data may include system information, rights control messages, rights management messages, content ...

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PUM

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Abstract

A digital rights management (DRM) system that includes one or more conditional access devices, such as copy control information (CCI) compliant devices, and one or more license (L) compliant devices is described. The L-compliant devices interoperate with the conditional access devices, each L-compliant device and conditional access device sharing a common content access protocol and access information. The system includes an initiator coupled to the L-compliant devices to initialize one or more of the L-compliant devices.

Description

[0001] This application claims the scope of the claims of the application filed on October 18, 2001 (Provisional Application No. 60 / 347,916). Background technique [0002] The present invention relates to compatibility between digital rights management (DRM) systems. [0003] The communication industry is shifting from traditional analog technology to digital technology. High definition television (HDTV) has begun broadcasting in most major cities, and the rapid utilization of the Internet and the World Wide Web has resulted in a corresponding increase in downloadable audio-visual files, such as audio files in MP3 format, among others. At the same time, low-cost and high-capacity digital recording devices such as digital versatile disk (DVD) recorders, digital VHS video tape recorders (D-VHS VCRs), CD-ROM recorders (such as CD-R and CD-RW ), MP3 recording devices and hard disk-based recording units have emerged. [0004] These digital recording devices are capable of produci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44H04N5/91G06F21/00G11B20/10H04N5/00H04N5/913H04N7/16H04N7/167H04N21/266H04N21/4363H04N21/4367H04N21/4623H04N21/4627H04N21/8355
CPCH04N21/4623H04N7/163H04N5/913G06F21/10H04N21/26606H04N2005/91328H04N21/83555H04N2005/91321H04N21/4627H04N21/8355H04N21/43632H04N21/4367H04N7/1675G06F17/00
Inventor 帕特里克·卡皮坦特
Owner MACROVISION CORP