Interactive TV Standards als Buch (gebunden)
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Interactive TV Standards

A Guide to MHP, OCAP, and JavaTV. Illustrations. Sprache: Englisch.
Buch (gebunden)
For any digital TV developer or manager, the maze of standards and specifications related to MHP and OCAP is daunting-you have to patch together pieces from several standards to gather all the necessary knowledge you need to compete worldwide. The st … weiterlesen
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Interactive TV Standards als Buch (gebunden)


Titel: Interactive TV Standards
Autor/en: Steven Morris, Anthony Smith-Chaigneau

ISBN: 0240806662
EAN: 9780240806662
A Guide to MHP, OCAP, and JavaTV.
Sprache: Englisch.
Taylor & Francis Ltd

21. April 2005 - gebunden - 612 Seiten


For any digital TV developer or manager, the maze of standards and specifications related to MHP and OCAP is daunting-you have to patch together pieces from several standards to gather all the necessary knowledge you need to compete worldwide. The standards themselves can be confusing, and contain many inconsistencies and missing pieces. Interactive TV Standards provides a guide for actually deploying these technologies for a broadcaster or product and application developer. Understanding what the APIs do is essential for your job, but understanding how the APIs work and how they relate to each other at a deeper level helps you do it better, faster and easier. Learn how to spot when something that looks like a good solution to a problem really isn't. Understand how the many standards that make up MHP fit together, and implement them effectively and quickly. Two DVB insiders teach you which elements of the standards that are needed for digital TV, highlight those elements that are not needed, and explain the special requirements that MHP places on implementations of these standards. Once you've mastered the basics, you will learn how to develop products for US, European, and Asian markets--saving time and money. By detailing how a team can develop products for both the OCAP and MHP markets, Interactive TV Standards teaches you how to to leverage your experience with one of these standards into the skills and knowledge needed to work with the critical, related standards. Does the team developing a receiver have all the knowledge they need to succeed, or have they missed important information in an apparently unrelated standard? Does an application developer really know how to write a reliable piece of software that runs on any MHP or OCAP receiver? Does the broadcaster understand the business and technical issues well enough to deploy MHP successfully, or will their project fail? Increase your chances of success the first time with Interactive TV Standards.


Preface Intended audience How this book is organized Versions Chapter 1 - The middleware market Why do we need open standards? Driving forces behind open standard middleware Correcting the fragmented iTV market What are DVB and CableLabs? The Digital Video Broadcasting Project CableLabs A history lesson - the background of MHP and OCAP The MHP family tree JavaTV, a common standard for digital TV Harmonization - Globally Executable MHP The hard part of standardization Intellectual property and royalties Where do we go from here? Open vs. proprietary middleware Chapter 2 - A brief introduction to digital TV The consumer perspective Customizable TV Understanding digital TV services Producing digital TV content Elementary streams Transport streams The multiplexing process Carrying transport streams in the network Energy dispersal Error correction Modulation Cable vs. satellite vs. terrestrial broadcasting Broadcasting issues and business opportunities Subscriber management and scrambling The Subscriber Management System The return channel - technical and commercial considerations Chapter 3 - Middleware architecture MHP and OCAP are not Java They're not the web either Working in the broadcast world The anatomy of an MHP/OCAP receiver The navigator Differences in OCAP A new navigator - the monitor application Modules in the execution engine Architectural issues for implementers Choosing a Java VM Sun's JVM or a clean-room implementation? The impact of the Java Community Process Portability Performance issues Chapter 4 - Applications and application management An introduction to Xlets Xlet contexts Writing your first Xlet Do's and don'ts for application developers Application signaling Extending the AIT Controlling Xlets Registering unbound applications Making applications coexist reliably Pitfalls for middleware developers Chapter 5 - The JavaTV service model What happens during service selection? Abstract services Managing abstract services in OCAP Registering applications Selecting abstract services Chapter 6 - Resource management issues Introducing the resource notification API Using the resource notification API Handling resource contention Resource management in OCAP Resource contention before version I12 Resource contention in later versions Common features of resource contention handling An example Resource management strategies in OCAP Merging OCAP and MHP resource management Chapter 7 - Graphics APIs The display model in a digital TV receiver HScreens and HScreenDevices Configuring screen devices Screen devices and resource management A practical example of device configuration HScenes and HSceneTemplates Creating an HScene Developing applications using HScenes The HAVi widget set Changing the look of your application HLooks in practice The behavior of components in MHP and OCAP Interacting with components Co-ordinate schemes Integrating graphics and video Transparency Mattes and alpha compositing Images Text presentation Multilingual support Using fonts Handling user input Keyboard events and input focus Exclusive access to keyboard events Practical issues for digital TV graphics Chapter 8 - Basic MPEG concepts in MHP and OCAP Content referencing in the MHP and OCAP APIs Locators for DVB streaming content Locators for streaming content in OCAP systems Locators for files Locators for video 'drips' Locator classes Creating a locator Network-bound locators Chapter 9 - Reading service information Service information and other system components Why do we need two SI APIs? Caching strategies In-band vs. out-of-band service information The DVB service information API The SI database Making an SI request Getting the results of a query SI Events An example Monitoring service information Low-level access to SI data Using the JavaTV service information API Basic concepts Handling the results from an SI query The core SI API Access to transport information Access to information about services Access to information about events Monito


Anthony Smith-Chaigneau is the former Head of Marketing&Communications for the DVB Consortium. In that role, he created the first MHP website and was responsible for driving the market implementation of this specification. Anthony left the DVB to join Advanced Digital Broadcast, where he helped them bring the first commercial MHP receivers to market. He is still heavily involved in the DVB MHP committees with Osmosys, an MHP and OCAP licensing company, based out of Switzerland.


"This is a practical guide for students, developers and managers that will help them to build and use the standards effectively, from writing their first MHP or OCAP application to deploying a full-blown application. It makes this book an excellent and essential reference handbook for all those who are new to developing standards-based middleware for DTV and iTV." - Journal of Learning, Media and Technology
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