This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 0018-9162/03/$17.00 2003 IEEE July 2003 39 C O V E R F E A T U R E P u b l i s h e d b y t h e I E E E C o m p u t e r S o c i e t y Protecting Intellectual Property in Digital Multimedia Networks R ecent advances in digital communications and storage technologies have brought major changes for consumers. Magnetic and optical storage capacity, for example, is much higher today than it was a few years ago. Todays basic personal computer system has 40 Gbytes of magnetic hard disk storage, and, although a DVD (digital versatile disk) is the same physical size as a CD, its faster and can store much more audiovisual data in optical formfrom 4 to 17 Gbytes (two to eight hours of video). Moreover, Internet connection speeds are much faster. Cable modems and asymmetric digital sub- scriber lines dominate the industry. The emerging very high bit-rate DSL (VDSL) connection, with speeds of up to 52 Mbps, will provide sufficient bandwidth for entertainment networks. These improvements in computers and commu- nications networks are radically changing the eco- nomics of intellectual property reproduction and distribution. IP owners can exploit new ways to reproduce, distribute, and market their IP. A major problem with current digital distribution and stor- age technologies, however, is the formidable threat of piracy. UNIVERSE OF SYSTEMS The universe of digital content distribution sys- tems offers five primary means of delivery to con- sumers: satellite, cable, terrestrial, the Internet, and prerecorded media (optical and magnetic). Content providers use these systems to distribute and store copyright-protected entertainment content. To ensure end-to-end security, a distribution sys- tem must provide secure content distribution, secure access key distribution, authentication of source and sink consumer devices in home networks, and renewability of content protection systems. The Key Players in Content Protection sidebar lists the organizations behind the efforts to identify and implement secure solutions. In the past two decades, collaborative projects have resulted in protection systems in commonly used digital networks. However, many problems pertaining to the security of multimedia content dis- tribution and storage continue to challenge the motion picture, consumer electronics, and infor- mation technology industries. IP-BASED INDUSTRIES IN THE US ECONOMY IPs growing importance has led some countries to evaluate the role of IP-based industries in their economies. The International Intellectual Property Alliance (www.iipa.com), a private-sector coalition Digital content providers can choose from a range of new technologies to reproduce, store, and distribute their intellectual property. Protecting their IP from piracy, however, remains a major issue....
View Full Document
This note was uploaded on 07/30/2011 for the course COP 4810 taught by Professor Staff during the Spring '11 term at University of Central Florida.
- Spring '11
- Computer Science