DOCSLIB.ORG

Understanding Digital Terres Trial Broadcasting

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Understanding Digital Terrestrial Broadcasting Understanding Digital Terrestrial Broadcasting Seamus OLeary Artech House Boston London www.artechhouse.com Library of Congress Cataloging-in-Publication Data OLeary, Seamus. Understanding digital terrestrial broadcasting / Seamus OLeary. p. cm. (Artech House digital audio and video library) Includes bibliographical references and index. ISBN 1-58053-063-X (alk. paper) 1. Digital communications. 2. Television broadcasting. 3. Digital audio broadcasting. I. Title. II. Series. TK5103.7.O49 2000 621.384dc21 00-040624 CIP British Library Cataloguing in Publication Data OLeary, Seamus Understanding digital terrestrial broadcasting. (Artech House digital audio and video library) 1. Digital television 2. Digital audio broadcasting I. Title 621.388 ISBN1-58053-462-7 Cover and text design by Darrell Judd © 2000 ARTECH HOUSE, INC. 685 Canton Street Norwood, MA 02062 All rights reserved. Printed and bound in the United States of America. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechani- cal, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher. All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Artech House cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. International Standard Book Number: 1-58053-063-X Library of Congress Catalog Card Number: 00-040624 10987654321 This book is dedicated to the memory of Una and Denis McLoughlin, Go raibh leaba i measc na naoimh agaibh i gcónaí. (May you always have a bed amongst the Saints.) Contents 1 Current Situation 1 1.1 Introduction 1 1.2 Historical Background and Future Trends in Digital Television 2 1.3 Global Developments in Digital Television 3 1.3.1 DTV in the United States 3 1.3.2 DTV in Europe 4 1.3.3 DTV in Japan 4 1.4 Digital Television Organizations 5 1.5 The Need for Compression 11 1.5.1 Redundancy and Entropy 11 1.5.2 Constant and Variable Rate Sources 13 1.6 Intracoding and Intercoding Techniques 14 1.6.1 Intracoding 14 1.6.2 Intercoding 14 2 Digital Encoding of Television Signals 17 2.2 Sampling Formats 19 2.2.1 Rec. 601 (ITU-R BT.601-5) 20 2.2.2 Quantization Levels in 8-Bit Sampling 21 2.2.3 Redundancy and Compression 21 2.2.4 Compression Efficiency 22 2.3 ITU-R Rec. 656 Interface 23 2.3.1 Serial Digital Component Video (4:2:2) 23 2.4 4:2:0 Sampled Signals 25 2.5 ITU-Rec. 723 26 vii viii Understanding Digital Terrestrial Broadcasting 2.6 Encoding Signals for DTV Broadcasting 27 2.7 Digital Audio Coding 27 2.7.1 Sampling and Quantization of Audio Signals 28 2.7.2 AES/EBU Digital Audio Interface 29 2.7.3 Common Sampling Frequencies 29 3 Some Common Digital Television Standards 31 3.1 Introduction 31 3.2 Moving Pictures Expert Group (MPEG) 32 3.3 Joint Photographic Expert Group (JPEG) 32 3.3.1 JPEG CompressionAn Overview 33 3.3.2 Lossy and Lossless Compression 33 3.4 MPEG-1 34 3.4.1 MPEG-1 CompressionAn Overview 35 3.5 Frame-based and Object-based Coding Standards 36 3.6 MPEG-4: An object based coding approach 37 3.7 MPEG-7: A Multimedia Content Description Interface 38 3.7.1 Metadata 38 4 MPEG-2: The Broadcasters Choice 41 4.1 Introduction 41 4.2 4:2:0 Sampling 42 4.3 Discrete Cosine Transform (DCT) 43 4.4 Coefficient Quantization 44 4.5 Zig-Zag Coefficient Scanning 45 4.6 Variable Length Coding and Run Length Coding 46 4.7 Buffers 47 4.8 Interframe Redundancy Compression Techniques 47 4.9 Motion-Compensated Interframe Prediction 48 4.10 MPEG-2 Picture Types 49 4.10.1 I-pictures 49 4.10.2 P-pictures 49 4.10.3 B-pictures 49 4.11 Group of Pictures (GOP) 50 4.12 MPEG-2 Profiles and Levels 50 4.13 MPEG Audio Coding 51 4.13.1 MPEG-1 Audio 52 4.13.2 MPEG-2 Audio 53 4.13.3 Different ISO MPEG layers 53 Contents ix 4.13.4 Principles Behind MPEG Layer II Coding 55 4.13.5 Sub-Band Coding 56 4.13.6 MPEG Audio Decoding 57 4.13.7 DVB Guidelines for Audio Coding 57 5 MPEG-2 Transport Streams 59 5.1 Introduction 59 5.2 The MPEG-2 System Layer 60 5.2.1 Clock Reference Information 60 5.2.2 Transmission and Program Information 60 5.3 MPEG-2 Bit Streams 61 5.4 MPEG-2 Interfaces 63 5.4.1 Synchronous Parallel Interface (SPI) 63 5.4.2 Asynchronous Serial Interface (ASI) 65 5.5 MPEG-2 Transport Stream Parameters 66 5.5.1 Program Specific Information (PSI) 68 5.5.2 DVB Service Information (SI) 69 5.5.3 Service Information Distribution 71 5.6 Constant and Variable Bit Rate Sources 72 5.6.1 DTV Multicasting 72 5.6.2 Statistical Multiplexing 73 5.6.3 Opportunistic Data 76 6 Single Carrier Digital Modulations 79 6.1 Introduction 79 6.1.1 Uses of Single Carrier Digital Modulations 80 6.2 Bandlimiting Digital Signals 80 6.2.1 Digital Signals in Time and Frequency Domains 81 6.2.2 Nyquist Filtering 81 6.2.3 Raised Cosine Filters 83 6.3 Data Transmission Speeds 83 6.4 Multilevel Digital Modulations 84 6.4.1 QPSK (Quartenary Phase Shift Keying) 85 6.4.2 Data Capacity of 2m-QAM Systems 86 6.4.3 Byte to M-Tuple Conversion 87 6.4.4 16-QAM 88 6.4.5 32-QAM Modulation 89 6.4.6 64-QAM Modulation 90 x Understanding Digital Terrestrial Broadcasting 6.4.7 QAM Modulator Implementation 91 6.4.8 Filtering of QAM Systems 92 6.4.9 Trellis Code Modulation 92 6.5 DVB-based QAM Systems 93 6.5.1 DVB-C System Concepts 93 6.5.2 Common Operating Characteristics of DVB-C Systems 94 6.6 Vestigial Sideband Modulation 95 6.6.1 System Overview 95 6.6.2 VSB Modulator 96 6.7 Single Carrier and Multicarrier Modulation for Terrestrial 6.7 Broadcasting 97 7 Coded Orthogonal Frequency Division Multiplexing 101 7.1 Introduction 101 7.2 COFDM: A Qualitative Description 103 7.2.1 Frequency Division Multiplexing 103 7.2.2 Coded 103 7.2.3 Orthogonality 104 7.3 Symbol Period, Intervals, and Carrier Spacing 105 7.3.1 Consequence of Varying Guard Interval 107 7.4 Time Domain Signal and Transmission Consequences 107 7.5 The 2k and 8k Systems 109 7.5.1 Data Payload of 2k and 8k Systems 110 7.6 Inner Coding (Convolutional Codes) 113 7.7 Inner Modulation 114 7.8 Outer Coding 114 7.9 Pilot Cells 115 7.10 Radio Frequency Spectrum Characteristics 116 7.10.1 RF Channel Bandwidth 116 7.11 Hierarchical Transmission 117 7.11.1 Possible Uses of Hierarchical Transmission 121 7.12 Practical DVB-T Modulators 122 7.12.1 Use of FFT in COFDM 123 8 Terrestrial Transmission of DTV Signals 125 8.1 Introduction 125 8.1.1 Digital and Analog Transmitted Picture Quality 126 8.1.2 Analog Transmission Impairments 126 Contents xi 8.1.3 Digital Transmission Advantages 127 8.2 Transmission Spectrum Issues 127 8.2.1 Analog Spectrum Allocations and Frequency Bands 128 8.2.2 Television Planning 128 8.2.3 UHF Propagation 129 8.2.4 Constraints on Assigning Analog Channels 130 8.2.5 DTV Channel Possibilities 132 8.3 Digital Television Transmitters 133 8.3.1 Typical Transmitter Output Powers 133 8.3.2 Solid State Transmitters 134 8.4 DTV Transmitter Architecture 139 8.4.1 Modulator 139 8.4.2 Linearity Precorrector 139 8.4.3 RF Upconvertor 139 8.4.4 Power Amplifier and Derrated Operation 140 8.4.5 DTV Transmitter Distortions and Clipping 141 8.5 Filters, Combiners, and Antenna Systems 141 8.5.1 DTV Filters 142 8.5.2 DTV Combiners 142 8.5.3 DTV Antenna Systems 142 8.5.4 Voltage and Power Ratings 143 8.6 DTV Transmitter Size and Cooling Arrangements 144 8.6.1 Air Cooling SystemsDisadvantages for DTV 144 8.6.2 Liquid Cooling Systems 145 8.6.3 Geothermal Cooling Systems 145 9 DTV Receivers, Measurements, and Middleware 147 9.1 Introduction 147 9.2 Measurements 149 9.2.1 RF and IF Signal Power 149 9.2.2 Noise Power 149 9.2.3 Carrier-to-Noise Ratio (C/N) 150 9.2.4 BER Versus C/N 150 9.2.5 Transmitter Output Back-off 151 9.2.6 Phase Noise 151 9.2.7 Transmitter Linearity 151 9.2.8 Equivalent Noise Degradation (END) 152 xii Understanding Digital Terrestrial Broadcasting 9.2.9 Modulation Error Ratio (MER) 152 9.2.10 Quality of Service 152 9.3 Time Domain (IQ) Signal Analysis 153 9.3.1 Phase or Quadrature Error 153 9.3.2 Phase Jitter 153 9.3.3 Interference 154 9.3.4 Noise 155 9.4 Measuring Bit Error Rates (BER) 156 9.4.1 BER Measurement Points for DVB-T Receivers 156 9.5 Set Top Boxes (STB) and Integrated Receiver Decoders (IRD) 159 9.5.1 Set Top Box Functionality 160 9.5.2 Integrated Receiver Decoder (IRD) Functionality 160 9.6 Middleware and Application Programming Interfaces (API) 161 9.6.1 DVB and Java 161 9.6.2 The MHEG API 162 9.6.3 The EuroMHEG system 162 9.6.4 Data Carousels 162 9.6.5 Resident and Interactive Applications 163 10 Single Frequency Networks and Multifrequency Networks 165 10.1 Introduction to Single Frequency Networks 165 10.2 Types of Single Frequency Networks 167 10.3 Self Interference of Single Frequency Networks 168 10.3.1 Delay Spread 169 10.4 SFN Performance With 0 dB Echoes 171 10.5 Single Frequency Network Synchronization 172 10.5.1 Synchronization Constraints and MIPs 172 10.5.2 Time Synchronization 173 10.5.3 Frequency Synchronization 173 10.5.4 Bit Synchronization Using the Megaframe and MIP 174 10.6 Distribution Delays 174 10.7 Network Gain 175 10.8 Multifrequency Networks 176 10.9 Protection Ratios 177 10.9.1 Frequency Resource 178 10.9.2 Assigning Channels for MFNs 178 10.9.3 MFN Offsets 179 Contents xiii 10.10 Nonsynchronous Operation 179 10.11 ERP Requirements 180 10.12 Modifications to Upper Adjacent Analog Transmitters 180 11 Radio Frequency Considerations for Digital Terrestrial Television Services
Recommended publications
  • 881/882 Video Test Instrument User Guide

    881/882 Video Test Instrument User Guide

    881/882 Video Test Instrument User Guide 881/882 Video Test Instrument, User Guide, Revision A.35 (9/23/10) Copyright 2010 Quantum Data. All rights reserved. The information in this document is provided for use by our customers and may not be incorporated into other products or publications without the expressed written consent of Quantum Data. Quantum Data reserves the right to make changes to its products to improve performance, reliability, producibility, and (or) marketability. Information furnished by Quantum Data is believed to be accurate and reliable. However, no responsibility is assumed by Quantum Data for its use. Updates to this manual are available at http://www.quantumdata.com/support/downloads/ . Table of Contents Chapter 1 Getting Started Introduction . 2 882D features . 2 Video interfaces . 4 Computer interfaces . 7 Front panel interface . 9 Status indicators . 9 Menu selection keys . 10 882 file system and media . 13 882 file system . 13 882 media . 13 882 operational modes . 14 Booting up the 882 . 14 Basic mode. 15 Browse mode . 15 Web interface . 20 Working with the Virtual Front Panel . 20 Working with the CMD (Command) Terminal. 22 Working with the 882 FTP Browser . 23 Copying files between 882s . 27 Command line interface . 30 Working with the serial interface. 30 Working with the network interface. 33 Sending commands interactively . 34 Sending command files (serial interface only) . 34 Working with user profiles . 36 Chapter 2 Testing Video Displays General video display testing procedures . 40 882 Video Test Instrument User Guide (Rev A.35) i Making physical connection . 40 Selecting interface type . 41 Selecting video format .
  • 32Pw9615 Nicam

    32Pw9615 Nicam

    Preliminary information WideScreen Television 32PW9615 NICAM Product highlights • 100Hz Digital Scan with Digital Natural Motion • Digital CrystalClear with Dynamic Contrast and LTP2 • Full PAL plus (Colour Plus incl.) / WideScreen plus • Dolby Digital and MPEG Multichannel • Wireless FM surround speakers • TXT/NEXTVIEW DualScreen • NEXTVIEW (type 3) • 440 pages EasyText teletext (level 2.5) • Active control • Improved Graphical User Interface • Zoom (16x) Preliminary information WideScreen Television 32PW9615 NICAM Product highlights • 100Hz Digital Scan with Digital Natural Motion • Digital CrystalClear with Dynamic Contrast and LTP2 • Full PAL plus (Colour Plus incl.) / WideScreen plus • Dolby Digital and MPEG Multichannel • Wireless FM surround speakers • TXT/NEXTVIEW DualScreen • NEXTVIEW (type 3) • 440 pages EasyText teletext (level 2.5) • Active control • Improved Graphical User Interface • Zoom (16x) Preliminary information WideScreen Television 32PW9615 NICAM Product highlights • 100Hz Digital Scan with Digital Natural Motion • Digital CrystalClear with Dynamic Contrast and LTP2 • Full PAL plus (Colour Plus incl.) / WideScreen plus • Dolby Digital and MPEG Multichannel • Wireless FM surround speakers • TXT/NEXTVIEW DualScreen • NEXTVIEW (type 3) • 440 pages EasyText teletext (level 2.5) • Active control • Improved Graphical User Interface • Zoom (16x) Preliminary information WideScreen Television 32PW9615 NICAM Product highlights • 100Hz Digital Scan with Digital Natural Motion • Digital CrystalClear with Dynamic Contrast and
  • CUFBRT404A Coordinate Outside Broadcasts

    CUFBRT404A Coordinate Outside Broadcasts

    CUFBRT404A Coordinate outside broadcasts Revision Number: 1 CUFBRT404A Coordinate outside broadcasts Date this document was generated: 27 May 2012 CUFBRT404A Coordinate outside broadcasts Modification History Not applicable. Unit Descriptor Unit descriptor This unit describes the performance outcomes, skills and knowledge required to coordinate outside broadcasts in the media industries. No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement. Application of the Unit Application of the unit Broadcast technicians or technologists apply the skills and knowledge described in this unit. Although they work under the direction of a broadcast engineer or technical director, they are expected to work with minimum supervision and, in the context of outside broadcasts, would usually be responsible for supervising others. The person coordinating outside broadcast technical operations requires a broad range of technical skills associated with setting up and monitoring live feeds, as well as the flexibility to rectify faults quickly and efficiently. They also need to understand the requirements of others involved in the production chain. Note: To meet the requirements of this unit, candidates need to demonstrate competency in the coordination of outside broadcasts for either television or radio. The Required Skills and Knowledge section should be tailored accordingly. Approved Page 2 of 13 © Commonwealth of Australia, 2012 Innovation and Business Skills Australia CUFBRT404A Coordinate outside broadcasts Date this document was generated: 27 May 2012 Licensing/Regulatory Information Not applicable. Pre-Requisites Prerequisite units Employability Skills Information Employability skills This unit contains employability skills. Elements and Performance Criteria Pre-Content Elements describe the Performance criteria describe the performance needed to essential outcomes of a demonstrate achievement of the element.
  • ETR 132 TECHNICAL August 1994 REPORT

    ETR 132 TECHNICAL August 1994 REPORT

    ETSI ETR 132 TECHNICAL August 1994 REPORT Source: EBU/ETSI JTC Reference: DTR/JTC-00011 ICS: 33.060 Key words: Broadcasting, FM, radio, transmitter, VHF European Broadcasting Union Union Européenne de Radio-Télévision EBU UER Radio broadcasting systems; Code of practice for site engineering Very High Frequency (VHF), frequency modulated, sound broadcasting transmitters ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [email protected] Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 1994. All rights reserved. New presentation - see History box © European Broadcasting Union 1994. All rights reserved. Page 2 ETR 132: August 1994 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to "ETSI Editing and Committee Support Dept." at the address shown on the title page. Page 3 ETR 132: August 1994 Contents Foreword .......................................................................................................................................................7 1 Scope
  • Digital Video Quality Handbook (May 2013

    Digital Video Quality Handbook (May 2013

    Digital Video Quality Handbook May 2013 This page intentionally left blank. Executive Summary Under the direction of the Department of Homeland Security (DHS) Science and Technology Directorate (S&T), First Responders Group (FRG), Office for Interoperability and Compatibility (OIC), the Johns Hopkins University Applied Physics Laboratory (JHU/APL), worked with the Security Industry Association (including Steve Surfaro) and members of the Video Quality in Public Safety (VQiPS) Working Group to develop the May 2013 Video Quality Handbook. This document provides voluntary guidance for providing levels of video quality in public safety applications for network video surveillance. Several video surveillance use cases are presented to help illustrate how to relate video component and system performance to the intended application of video surveillance, while meeting the basic requirements of federal, state, tribal and local government authorities. Characteristics of video surveillance equipment are described in terms of how they may influence the design of video surveillance systems. In order for the video surveillance system to meet the needs of the user, the technology provider must consider the following factors that impact video quality: 1) Device categories; 2) Component and system performance level; 3) Verification of intended use; 4) Component and system performance specification; and 5) Best fit and link to use case(s). An appendix is also provided that presents content related to topics not covered in the original document (especially information related to video standards) and to update the material as needed to reflect innovation and changes in the video environment. The emphasis is on the implications of digital video data being exchanged across networks with large numbers of components or participants.
  • Television Broadcasters'adoption of Digital

    Television Broadcasters'adoption of Digital

    TELEVISION BROADCASTERS’ ADOPTION OF DIGITAL MULTICAST AND ANCILLARY SERVICES: AN ANALYSIS OF THE PRIMARY CORE, SUPPORTING, AND ENVIRONMENTAL DRIVERS By TODD ANDREW HOLMES A THESIS PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ARTS IN MASS COMMUNICATION UNIVERSITY OF FLORIDA 2008 1 © 2008 Todd Andrew Holmes 2 To all who have inspired my intellectual curiosity and academic pursuits, and to all who have supported me in reaching this milestone 3 ACKNOWLEDGMENTS First and foremost, I would like to thank my chair, Dr. Ostroff, for the enormous amount of time and guidance he gave to me in helping me to complete this research study. His support and direction were absolutely critical in the successful completion of this paper. I also would like to thank the members of my committee, Dr. Chan-Olmsted and Dr. Brown, for their thoughts and ideas concerning my research topic. Second, I would like to thank the nine television executives who took time out of their busy schedules to meet with me and who very openly and willingly shared with me their thoughts on the research topic. Their help was absolutely vital to the completion of this study. Third, I would like to thank my parents who continued to keep me moving along on the thesis through their inquiries and encouragement. Their own academic achievements have continued to inspire me throughout this process. Lastly, special thanks go to all my friends, the Gator Guzzlers and many others, who heard me talk about this thesis for months and with whom I had to skip out on a lot of activities.
  • Register of Journalists' Interests

    Register of Journalists' Interests

    REGISTER OF JOURNALISTS’ INTERESTS (As at 11 July 2018) INTRODUCTION Purpose and Form of the Register Pursuant to a Resolution made by the House of Commons on 17 December 1985, holders of photo- identity passes as lobby journalists accredited to the Parliamentary Press Gallery or for parliamentary broadcasting are required to register: ‘Any occupation or employment for which you receive over £770 from the same source in the course of a calendar year, if that occupation or employment is in any way advantaged by the privileged access to Parliament afforded by your pass.’ Administration and Inspection of the Register The Register is compiled and maintained by the Office of the Parliamentary Commissioner for Standards. Anyone whose details are entered on the Register is required to notify that office of any change in their registrable interests within 28 days of such a change arising. An updated edition of the Register is published approximately every 6 weeks when the House is sitting. Changes to the rules governing the Register are determined by the Committee on Standards in the House of Commons, although where such changes are substantial they are put by the Committee to the House for approval before being implemented. Complaints Complaints, whether from Members, the public or anyone else alleging that a journalist is in breach of the rules governing the Register, should in the first instance be sent to the Registrar of Members’ Financial Interests in the Office of the Parliamentary Commissioner for Standards. Where possible the Registrar will seek to resolve the complaint informally. In more serious cases the Parliamentary Commissioner for Standards may undertake a formal investigation and either rectify the matter or refer it to the Committee on Standards.
  • Essentials of Radio Wave Propagation

    Essentials of Radio Wave Propagation

    This page intentionally left blank Essentials of Radio Wave Propagation If you need to maximise efficiency in wireless network planning an understanding of radio propagation issues is vital, and this quick reference guide is for you. Using real-world case studies, practical problems and minimum mathematics, the author explains simply and clearly how to predict signal strengths in a variety of situations. Fundamentals are explained in the context of their practical significance. Applications, including point-to-point radio links, broadcasting and earth–space communications, are thoroughly treated, and more sophisticated methods, which form the basis of software tools both for network planning and for spectrum management, are also described. For a rapid understanding of and insight into radio propagation, sufficient to enable you to undertake real-world engineering tasks, this concise book is an invaluable resource for network planners, hardware designers, spectrum managers, senior technical managers and policy makers who are either new to radio propagation or need a quick reference guide. christopher haslett is the Principal Propagation Adviser at Ofcom, the UK Communication Industries Regulator. As well as experience conducting and directing research projects, he has many years’ industrial radio-planning experience with Cable and Wireless plc., and as Director of Planning and Optimisation at Aircom International Ltd., where he directed the optimisa- tion of UMTS networks. He was also a Senior Lecturer at the University of Glamorgan. The Cambridge
  • DICE Best Practice Guide.Pdf

    DICE Best Practice Guide.Pdf

    BEST PRACTICE GUIDE Interactive Service, Frequency Social Business Migration, Policy & Platforms Acceptance Models Implementation Regulation & Business Opportunities BEST PRACTICE GUIDE FOREWORD As Lead Partner of DICE I am happy to present this We all want to reap the economic benefi ts of dig- best practice guide. Its contents are based on the ital convergence. The development and successful outputs of fi ve workgroups and countless discus- implementation of new services need extended sions in the course of the project and in conferences markets, however; markets which often have to be and workshops with the broad participation of in- larger than those of the individual member states. dustry representatives, broadcasters and political The sooner Europe moves towards digital switcho- institutions. ver the sooner the advantages of released spectrum can be realised. The DICE Project – Digital Innovation through Co- operation in Europe – is an interregional network We have to recognise that a pan-European telecom funded by the European Commission. INTERREG as and media industry is emerging. The search for an EU community initiative helps Europe’s regions economies of scale is driving the industry into busi- form partnerships to work together on common nesses outside their home country and to strategies projects. By sharing knowledge and experience, beyond their national market. these partnerships enable the regions involved to develop new solutions to economic, social and envi- It is therefore a pure necessity that regional political ronmental challenges. institutions look across the border and aim to learn from each other and develop a common under- DICE focuses on facilitating the exchange of experi- standing.
  • An Embedded Multifunctional Media System for Mobile Devices in Terrestrial DTV Relaying

    An Embedded Multifunctional Media System for Mobile Devices in Terrestrial DTV Relaying

    J Inf Process Syst, Vol.14, No.5, pp.1272~1285, October 2018 ISSN 1976-913X (Print) https://doi.org/10.3745/JIPS.03.0100 ISSN 2092-805X (Electronic) An Embedded Multifunctional Media System for Mobile Devices in Terrestrial DTV Relaying Jun Huang* and Haibing Yin** Abstract The paper presents a novel embedded multifunctional media sever (EMMS) for mobile devices to receive various media programs. Being different from other contemporary system research, the paper mainly studies how to design a reception solution for terrestrial digital television (DTV) on mobile devices and how to enable mobile devices can receive DTV program, enjoy video-on-demand (VOD), achieve video surveillance and relay Internet video program via local Wi-Fi simultaneously. In the system design, we integrate broadcasting-terrestrial DTV tuner, streaming media re-transmission system, VOD disk, video camera and access interface to the Internet into EMMS, which can either receive terrestrial DTV radio signals and demodulate out digital transport stream (TS), or can read streaming media bit-stream from VOD disk, surveillance camera or access interface to the Internet. The experimental results show the proposed system is stable and quality-efficient. Comparing with the other systems, the proposed system has the least packet loss rate and response time. Keywords DTV, Media Relaying, Media Server, Mobile Devices, Terrestrial Broadcasting 1. Introduction Digital broadcasting terrestrial systems, such as DVB-T [1] in European, ISDB-T in Japan and DTMB [2] in China, etc., had been built up and popularized for application in the world today. At the same time, mobile digital TV systems, such as T-DMB [3] in Korea, ISDB-T in Japan and CMMB [4] in China, had also been applied in a wide range.
  • (12) United States Patent (10) Patent N0.: US 8,073,418 B2 Lin Et A]

    (12) United States Patent (10) Patent N0.: US 8,073,418 B2 Lin Et A]

    US008073418B2 (12) United States Patent (10) Patent N0.: US 8,073,418 B2 Lin et a]. (45) Date of Patent: Dec. 6, 2011 (54) RECEIVING SYSTEMS AND METHODS FOR (56) References Cited AUDIO PROCESSING U.S. PATENT DOCUMENTS (75) Inventors: Chien-Hung Lin, Kaohsiung (TW); 4 414 571 A * 11/1983 Kureha et al 348/554 Hsing-J“ Wei, Keelung (TW) 5,012,516 A * 4/1991 Walton et a1. .. 381/3 _ _ _ 5,418,815 A * 5/1995 Ishikawa et a1. 375/216 (73) Ass1gnee: Mediatek Inc., Sc1ence-Basedlndustr1al 6,714,259 B2 * 3/2004 Kim ................. .. 348/706 Park, Hsin-Chu (TW) 7,436,914 B2* 10/2008 Lin ....... .. 375/347 2009/0262246 A1* 10/2009 Tsaict a1. ................... .. 348/604 ( * ) Notice: Subject to any disclaimer, the term of this * Cited by examiner patent is extended or adjusted under 35 U'S'C' 154(1)) by 793 days' Primary Examiner * Sonny Trinh (21) App1_ NO; 12/185,778 (74) Attorney, Agent, or Firm * Winston Hsu; Scott Margo (22) Filed: Aug. 4, 2008 (57) ABSTRACT (65) Prior Publication Data A receiving system for audio processing includes a ?rst Us 2010/0029240 A1 Feb 4 2010 demodulation unit and a second demodulation unit. The ?rst ' ’ demodulation unit is utilized for receiving an audio signal and (51) Int_ CL generating a ?rst demodulated audio signal. The second H043 1/10 (200601) demodulation unit is utilized for selectively receiving the H043 5/455 (200601) audio signal or the ?rst demodulated audio signal according (52) us. Cl. ....................... .. 455/312- 455/337- 348/726 to a Setting Ofa television audio System Which the receiving (58) Field Of Classi?cation Search ...............
  • PROFESSIONAL VIDEO 315 800-947-1175 | 212-444-6675 Blackmagic • Canon

    PROFESSIONAL VIDEO 315 800-947-1175 | 212-444-6675 Blackmagic • Canon

    PROFESSIONAL VIDEO 315 800-947-1175 | 212-444-6675 Blackmagic • Canon VIDEO TAPE Fuji Film PRO-T120 VHS Video Cassette (FUPROT120)............................3.29 XA10 Professional HD Camcorder DVC-60 Mini DV Cassette (FUDVC60) .......................................3.35 Pocket Cinema Camera Ultra-compact, the XA10 DVC-80 Mini DV Cassette (FUDVC80)........................................7.99 shares nearly all the Pocket Cinema Camera is a HDV Cassette, 63 Minute (FUHDVDVM63) .................................6.99 functionality of the XF100, true Super 16 digital film DV141HD63S HDV (FUDV14163S) ............................................7.95 but in an even smaller, camera that’s small enough run-and-gun form factor. to keep with you at all times. Maxell 64GB internal flash drive Remarkably compact (5 x 2.6 DV-60 Mini DV Cassette (MADVM60SE) .................................3.99 and two SDXC-compatible x 1.5”) and lightweight (12.5 M-DV63PRO Mini DV Cassette (MADVM63PRO)......................5.50 card slots allow non-stop oz) with a magnesium alloy chassis, it features 13 stops of T-120 VHS Cassette (MAGXT120) ..........................................2.39 recording. Able to capture dynamic range, Super 16 sensor size, and and records 1080HD STD-160 VHS Cassette (MAGXT160).....................................2.69 AVCHD video at bitrates up to lossless CinemaDNG RAW and Apple ProRes 422 (HQ) files to fast STD-180 VHS Cassette (MAGXT180)......................................3.09 24Mbps, the camcorder’s native 1920 x1080 CMOS sensor also SDXC cards, so you can immediately edit or color correct your HG-T120 VHS Cassette (MAHGT120) .....................................1.99 lets you choose 60i, 24p, PF30, and PF24 frame rates for media on your laptop. Active Micro Four Thirds lens mount can HG-T160 VHS Video Cassette (MAHGT160) ............................2.59 customizing the look of your footage.