News
The 4C Entity, LLC is pleased to announce that CPRM Specification, SD Memory Card Book,
SD-SD Video Part, Revision 0.91 is now available. The new revision includes the treatment of the Digital
Stream Usage newly defined in SD-SD Video version 1.1. More...
The 4C Entity, LLC is pleased to announce that CPRM
Specification, SD Memory Card Book, SD-SD Part, Revision
0.91 is now available. The new revision incorporates usage rules based
on date and time, both of which were previously supported in the 4C Specification
material for CPRM for SD-Audio revision 0.97. The rules require three types of clock
function modalities to define previewing and recording rules for devices.
Click here for more information about revisions
to 4C specifications and license agreement and prior
announcements
INDUSTRY RESOURCES
Listed below are resources available from other organizations related
to 4C technologies.
- Intel and CPRM/CPPM: Advancing Content Protection to Parallel Innovation in the Digital Home
- “Interoperable Home Infrastructure,” Nov. 15, 2002 issue of Intel Technology Journal
- Protecting Content in the Digital Age: Balancing Creative Use with Creator Rights
- Intel and DTCP: Protecting Premium Content and Its Use in the Digital Home
- China Research Laboratory “CPRM/CPPM”
- Content Protection for SD Memory Card (written in Japanese)
- DVD Content Protection by CPRM (written in Japanese)
- SD
Card Content Protection by CPRM (written in Japanese)
Other Industry Organizations
- Advanced Access Content System
- Association of Radio Industries & Businesses
- Content Management Licensing Administrator
- Digital Transmission Licensing Administrator
- DVD Forum
- SD Card Association
The CPSA Ecosystem
4C Entity has developed a comprehensive, standards-based framework
for unifying various content protection technologies, including CPRM
and CPPM. The Content Protection System Architecture (CPSA) was developed
to integrate major existing content protection technologies from the
personal computing and consumer electronics industries, as well as
new technologies as they emerge in the years ahead. Click
here to download a white paper on CPSA.
4C Technologies
4C Founders
