Digital Multi–Programme TV/HDTV by Satellite
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History of the DVB Project
History of the DVB Project (This article was written by David Wood around 2013.) Introduction The DVB Project is an Alliance of about 200 companies, originally of European origin but now worldwide. Its objective is to agree specifications for digital media delivery systems, including broadcasting. It is an open, private sector initiative with an annual membership fee, governed by a Memorandum of Understanding (MoU). Until late 1990, digital television broadcasting to the home was thought to be impractical and costly to implement. During 1991, broadcasters and consumer equipment manufacturers discussed how to form a concerted pan-European platform to develop digital terrestrial TV. Towards the end of that year, broadcasters, consumer electronics manufacturers and regulatory bodies came together to discuss the formation of a group that would oversee the development of digital television in Europe. This so-called European Launching Group (ELG) expanded to include the major European media interest groups, both public and private, the consumer electronics manufacturers, common carriers and regulators. It drafted the MoU establishing the rules by which this new and challenging game of collective action would be played. The concept of the MoU was a departure into unexplored territory and meant that commercial competitors needed to appreciate their common requirements and agendas. Trust and mutual respect had to be established. The MoU was signed by all ELG participants in September 1993, and the Launching Group renamed itself as the Digital Video Broadcasting Project (DVB). Development work in digital television, already underway in Europe, moved into top gear. Around this time a separate group, the Working Group on Digital Television, prepared a study of the prospects and possibilities for digital terrestrial television in Europe. -
Digital Subscriber Line (DSL) Technologies
CHAPTER21 Chapter Goals • Identify and discuss different types of digital subscriber line (DSL) technologies. • Discuss the benefits of using xDSL technologies. • Explain how ASDL works. • Explain the basic concepts of signaling and modulation. • Discuss additional DSL technologies (SDSL, HDSL, HDSL-2, G.SHDSL, IDSL, and VDSL). Digital Subscriber Line Introduction Digital Subscriber Line (DSL) technology is a modem technology that uses existing twisted-pair telephone lines to transport high-bandwidth data, such as multimedia and video, to service subscribers. The term xDSL covers a number of similar yet competing forms of DSL technologies, including ADSL, SDSL, HDSL, HDSL-2, G.SHDL, IDSL, and VDSL. xDSL is drawing significant attention from implementers and service providers because it promises to deliver high-bandwidth data rates to dispersed locations with relatively small changes to the existing telco infrastructure. xDSL services are dedicated, point-to-point, public network access over twisted-pair copper wire on the local loop (last mile) between a network service provider’s (NSP) central office and the customer site, or on local loops created either intrabuilding or intracampus. Currently, most DSL deployments are ADSL, mainly delivered to residential customers. This chapter focus mainly on defining ADSL. Asymmetric Digital Subscriber Line Asymmetric Digital Subscriber Line (ADSL) technology is asymmetric. It allows more bandwidth downstream—from an NSP’s central office to the customer site—than upstream from the subscriber to the central office. This asymmetry, combined with always-on access (which eliminates call setup), makes ADSL ideal for Internet/intranet surfing, video-on-demand, and remote LAN access. Users of these applications typically download much more information than they send. -
A Technology Comparison Adopting Ultra-Wideband for Memsen’S File Sharing and Wireless Marketing Platform
A Technology Comparison Adopting Ultra-Wideband for Memsen’s file sharing and wireless marketing platform What is Ultra-Wideband Technology? Memsen Corporation 1 of 8 • Ultra-Wideband is a proposed standard for short-range wireless communications that aims to replace Bluetooth technology in near future. • It is an ideal solution for wireless connectivity in the range of 10 to 20 meters between consumer electronics (CE), mobile devices, and PC peripheral devices which provides very high data-rate while consuming very little battery power. It offers the best solution for bandwidth, cost, power consumption, and physical size requirements for next generation consumer electronic devices. • UWB radios can use frequencies from 3.1 GHz to 10.6 GHz, a band more than 7 GHz wide. Each radio channel can have a bandwidth of more than 500 MHz depending upon its center frequency. Due to such a large signal bandwidth, FCC has put severe broadcast power restrictions. By doing so UWB devices can make use of extremely wide frequency band while emitting very less amount of energy to get detected by other narrower band devices. Hence, a UWB device signal can not interfere with other narrower band device signals and because of this reason a UWB device can co-exist with other wireless devices. • UWB is considered as Wireless USB – replacement of standard USB and fire wire (IEEE 1394) solutions due to its higher data-rate compared to USB and fire wire. • UWB signals can co-exists with other short/large range wireless communications signals due to its own nature of being detected as noise to other signals. -
Frequency and Network Planning Aspects of DVB-T2
Report ITU-R BT.2254 (09/2012) Frequency and network planning aspects of DVB-T2 BT Series Broadcasting service (television) ii Rep. ITU-R BT.2254 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under the procedure detailed in Resolution ITU-R 1. -
PUBLIC VERSION AT&T Good Faith Complaint.Pdf
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DTT) Multiplex Licences Expiring in 2022 and 2026
Consultation on the renewal of Digital Terrestrial Television (DTT) multiplex licences expiring in 2022 and 2026 18 December 2020 Department for Digital, Culture, Media and Sport Foreword By the Rt Hon. John Whittingdale OBE MP, Minister of State for Media and Data UK television audiences are fortunate to enjoy an incredibly broad range of programming and to possess a variety of methods by which to watch it. The Digital Terrestrial Television platform, better known as Freeview, is one of the most popular methods of accessing TV content in the UK. Since its launch in 1998 it has become one of the biggest and best-loved platforms, transmitting the nation’s favourite programmes to 18 million homes across the country. Freeview is also a vital part of the public service broadcasting (PSB) system, ensuring that PSB content is free at the point of use and widely accessible, with nearly 99% coverage across the UK. Public service broadcasting plays an important role in the economic, cultural and democratic life of our country; keeping people informed, educated and entertained. The value of PSB - and the Freeview platform that continues to underpin it - has been particularly evident during the Covid-19 pandemic, as an important source of news, in countering misinformation, and in bringing the nation together through shared moments. PSB and commercial content is provided on the Freeview platform through separate digital networks known as multiplexes, of which there are six nationally. Two of the national multiplex licences - Multiplex 2 and Multiplex A - are expiring in 2022. To renew these licences, the government is required to make secondary legislation. -
DTMB, ATSC, ISDB-T, DVB T/T2) and Radio & Emergency Warning Broadcasting System
Session 3 Broadcasting Standards for digital television (DTMB, ATSC, ISDB-T, DVB T/T2) and radio & Emergency Warning Broadcasting System 2015 Kuala Lumpur, Malaysia Dr AMAL Punchihewa Director ABU Technology Asia-Pacific Broadcasting Union A Vice Chair of World Broadcasting Union Technical Committee (WBU-TC) Dr Amal Punchihewa © Director of Technology ABU & A Vice Chair of World Broadcasting Union Technical Committee (WBU-TC) DTMB, ATSC, DVB and ABU working on EWS 2.0 , looking at Asia-Pacific requirements and building a reference model Dr Amal Punchihewa PhD, MEEng, BSC(Eng)Hons, CEng, FIET, FIPENZ, SMIEEE, MSLAAS, MCS Postgraduate Studies in Business Administration Director ABU Technology Asia-Pacific Broadcasting Union Kuala Lumpur, Malaysia A Vice-Chair World Broadcasting Unions Technical Committee (WBU-TC) Dr Amal Punchihewa © Director of Technology ABU & A Vice Chair of World Broadcasting Union Technical Committee (WBU-TC) 2 Outline • Digital Broadcasting • Television Services – Free TV or Pay TV – OTA or Cable • DTV Standards • What are EWS – Content delivered from distance, Live, VOD, …. Dr Amal Punchihewa © Director of Technology ABU & A Vice Chair of World Broadcasting Union Technical Committee (WBU-TC) 3 Traditional TV Traditional Broadcasting • Linear TV – At scheduled times, missed it then catch the delayed version, … • Public or commercial – Funding or business model, FTA, adverting, License fee, subscription, … • Terrestrial, Satellite, Cable – Now cloud, IP etc. … • Return channel – One-to-many service, no return channel -
EDUCATION in CHINA a Snapshot This Work Is Published Under the Responsibility of the Secretary-General of the OECD
EDUCATION IN CHINA A Snapshot This work is published under the responsibility of the Secretary-General of the OECD. The opinions expressed and arguments employed herein do not necessarily reflect the official views of OECD member countries. This document and any map included herein are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries and to the name of any territory, city or area. Photo credits: Cover: © EQRoy / Shutterstock.com; © iStock.com/iPandastudio; © astudio / Shutterstock.com Inside: © iStock.com/iPandastudio; © li jianbing / Shutterstock.com; © tangxn / Shutterstock.com; © chuyuss / Shutterstock.com; © astudio / Shutterstock.com; © Frame China / Shutterstock.com © OECD 2016 You can copy, download or print OECD content for your own use, and you can include excerpts from OECD publications, databases and multimedia products in your own documents, presentations, blogs, websites and teaching materials, provided that suitable acknowledgement of OECD as source and copyright owner is given. All requests for public or commercial use and translation rights should be submitted to [email protected]. Requests for permission to photocopy portions of this material for public or commercial use shall be addressed directly to the Copyright Clearance Center (CCC) at [email protected] or the Centre français d’exploitation du droit de copie (CFC) at [email protected]. Education in China A SNAPSHOT Foreword In 2015, three economies in China participated in the OECD Programme for International Student Assessment, or PISA, for the first time: Beijing, a municipality, Jiangsu, a province on the eastern coast of the country, and Guangdong, a southern coastal province. -
Replacing Digital Terrestrial Television with Internet Protocol?
This is a repository copy of The short future of public broadcasting: Replacing digital terrestrial television with internet protocol?. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/94851/ Version: Accepted Version Article: Ala-Fossi, M and Lax, S orcid.org/0000-0003-3469-1594 (2016) The short future of public broadcasting: Replacing digital terrestrial television with internet protocol? International Communication Gazette, 78 (4). pp. 365-382. ISSN 1748-0485 https://doi.org/10.1177/1748048516632171 Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version - refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher’s website. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ The Short Future of Public Broadcasting: Replacing DTT with IP? Marko Ala-Fossi & Stephen Lax School of Communication, School of Media and Communication Media and Theatre (CMT) University of Leeds 33014 University of Tampere Leeds LS2 9JT Finland UK [email protected] [email protected] Keywords: Public broadcasting, terrestrial television, switch-off, internet protocol, convergence, universal service, data traffic, spectrum scarcity, capacity crunch. -
Lecture 8: Overview of Computer Networking Roadmap
Lecture 8: Overview of Computer Networking Slides adapted from those of Computer Networking: A Top Down Approach, 5th edition. Jim Kurose, Keith Ross, Addison-Wesley, April 2009. Roadmap ! what’s the Internet? ! network edge: hosts, access net ! network core: packet/circuit switching, Internet structure ! performance: loss, delay, throughput ! media distribution: UDP, TCP/IP 1 What’s the Internet: “nuts and bolts” view PC ! millions of connected Mobile network computing devices: server Global ISP hosts = end systems wireless laptop " running network apps cellular handheld Home network ! communication links Regional ISP " fiber, copper, radio, satellite access " points transmission rate = bandwidth Institutional network wired links ! routers: forward packets (chunks of router data) What’s the Internet: “nuts and bolts” view ! protocols control sending, receiving Mobile network of msgs Global ISP " e.g., TCP, IP, HTTP, Skype, Ethernet ! Internet: “network of networks” Home network " loosely hierarchical Regional ISP " public Internet versus private intranet Institutional network ! Internet standards " RFC: Request for comments " IETF: Internet Engineering Task Force 2 A closer look at network structure: ! network edge: applications and hosts ! access networks, physical media: wired, wireless communication links ! network core: " interconnected routers " network of networks The network edge: ! end systems (hosts): " run application programs " e.g. Web, email " at “edge of network” peer-peer ! client/server model " client host requests, receives -
Digital Television and the Allure of Auctions: the Birth and Stillbirth of DTV Legislation
Federal Communications Law Journal Volume 49 Issue 3 Article 2 4-1997 Digital Television and the Allure of Auctions: The Birth and Stillbirth of DTV Legislation Ellen P. Goodman Covington & Burling Follow this and additional works at: https://www.repository.law.indiana.edu/fclj Part of the Communications Law Commons, and the Legislation Commons Recommended Citation Goodman, Ellen P. (1997) "Digital Television and the Allure of Auctions: The Birth and Stillbirth of DTV Legislation," Federal Communications Law Journal: Vol. 49 : Iss. 3 , Article 2. Available at: https://www.repository.law.indiana.edu/fclj/vol49/iss3/2 This Article is brought to you for free and open access by the Law School Journals at Digital Repository @ Maurer Law. It has been accepted for inclusion in Federal Communications Law Journal by an authorized editor of Digital Repository @ Maurer Law. For more information, please contact [email protected]. Digital Television and the Allure of Auctions: The Birth and Stillbirth of DTV Legislation Ellen P. Goodman* I. INTRODUCTION ................................... 517 II. ORIGINS OF THE DTV PRovIsIoNs OF THE 1996 ACT .... 519 A. The Regulatory Process ..................... 519 B. The FirstBills ............................ 525 1. The Commerce Committee Bills ............. 526 2. Budget Actions ......................... 533 C. The Passage of the 1996Act .................. 537 Ill. THE AFTERMATH OF THE 1996 ACT ................ 538 A. Setting the Stage .......................... 538 B. The CongressionalHearings .................. 542 IV. CONCLUSION ................................ 546 I. INTRODUCTION President Clinton signed into law the Telecommunications Act of 1996 (1996 Act or the Act) on February 8, 1996.1 The pen he used to sign the Act was also used by President Eisenhower to create the federal highway system in 1957 and was later given to Senator Albert Gore, Sr., the father of the highway legislation. -
Digital Audio Broadcasting : Principles and Applications of Digital Radio
Digital Audio Broadcasting Principles and Applications of Digital Radio Second Edition Edited by WOLFGANG HOEG Berlin, Germany and THOMAS LAUTERBACH University of Applied Sciences, Nuernberg, Germany Digital Audio Broadcasting Digital Audio Broadcasting Principles and Applications of Digital Radio Second Edition Edited by WOLFGANG HOEG Berlin, Germany and THOMAS LAUTERBACH University of Applied Sciences, Nuernberg, Germany Copyright ß 2003 John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (þ44) 1243 779777 Email (for orders and customer service enquiries): [email protected] Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to [email protected], or faxed to (þ44) 1243 770571. This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. If professional advice or other expert assistance is required, the services of a competent professional should be sought.