The Present Edition Comprehensively Explains Satellite Transmission Of Television Signals, Reception At Cable Stations, Their Processing And Distribution To Subscribers. While Basic Phenomena Like Rf Wave Generation And Propagation, Microwave Techniques, Modulation-Detection, Antennas, Satellite Operations And Tv Systems Remain The Same But Signal Transmission And Reception In Digital Form Instead Of In Analog Needs Different Approach. For This, More Chapters As Listed Below Have Been Added In This Edition. * Video And Audio Signal Encoding To Convert Them To Binary Data Stream Before Transmission. * Data Compression Algorithms For Conserving Channel Width Which Otherwise Is Quite Large For Digital Transmission. * Conditional Access (Cas) Technique To Encrypt Video Data Stream To Limit Availability Of Pay Channels Only To Those Subscribers Who Make Additional Payment For Accessing Them. * Overview Of Digital Satellite Transmission And Reception. * Direct-To-Home (Dth) Television System. * High Definition Television (Hdtv). * Home Entertainment Television Theatres For Viewing Movies At Home On Large Screens.This Revised Edition Will Thus Become An Excellent Text Book For Students Pursuing Courses In The Area Of Entertainment Electronics. The Enhanced Coverage Will Be Equally Useful To Practicing Engineers And Technicians Engaged In Satellite Television Services.

The world of cable and satellite delivered television is constantly evolving and changing with new technology. These new technologies, especially the transition to digital distribution, are altering the world of television. The momentous results of these changes can be seen in the convergence of communications markets and services. This is the only book on the market that successfully captures the scope and detail of these developments. It examines the convergence and competition of emerging television industries both domestically and internationally. This book's clarity and comprehensibility make it accessible to readers without a background in these areas. Also, current employees in the industry will benefit from the broad based topics of the industry that are explored in this book. These topics include chapters on history, technology, industry structure, industry programming and services, daily operations, law and policy, international activities, and social issues. Also included is a detailed discussion of the 1996 Telecommunications Act, as well as other legal issues that are crucial to a clear understanding of the industry. Ultimately this book is a detailed review of where cable and satellite has come from, what it is like today, where it is headed and why, and how it relates to other media. Industry gurus and novices alike. Part of the Allyn & Bacon Series inMass Communication.

Cable television is arguably the dominant mass media technology in the U.S. today. Blue Skies traces its history in detail, depicting the important events and people that shaped its development, from the precursors of cable TV in the 1920s and '30s to the first community antenna systems in the 1950s, and from the creation of the national satellite-distributed cable networks in the 1970s to the current incarnation of "info-structure" that dominates our lives. Author Patrick Parsons also considers the ways that economics, public perception, public policy, entrepreneurial personalities, the social construction of the possibilities of cable, and simple chance all influenced the development of cable TV. Since the 1960s, one of the pervasive visions of "cable" has been of a ubiquitous, flexible, interactive communications system capable of providing news, information, entertainment, diverse local programming, and even social services. That set of utopian hopes became known as the "Blue Sky" vision of cable television, from which the book takes its title. Thoroughly documented and carefully researched, yet lively, occasionally humorous, and consistently insightful, Blue Skies is the genealogy of our media society.

Video Scrambling and Descrambling for Satellite & Cable TV provides the "how and why" of encoding and decoding video signals. Most of the currently used methods are discussed, with the necessary technical background. Since digital scrambling methods will undoubtedly supplant analog methods, information on analog/digital conversion, phase-locked loops, digital techniques, and IC data sheets are included. In this new edition the authors incorporate the many developments in this field since 1986. They elaborate the basic information on scrambling given in the first edition, and discuss current scrambling systems such as Tri-mode, SSAVI, and Videocipher II. Looking back at the "gloom and doom" predictions made in the 80s, they discuss which have proven correct, which have yet to be realized, and which have been wrong. Their discussion of basic circuitry now includes some new IC devices, and the section on political, legal and consumer aspects of scrambling has been completely updated. New digitization techniques and construction data, decoder circuitry, audio scrambling techniques, manufacturers' data sheets, US Patents, and current developments such as digital audio are also covered in this updated version. Complete revision of a best-seller Explains the theory and operation of encoding/decoding systems Scrambling & descrambling circuits