IEC 62087-5-2015 Audio video and related equipment - Determination of power consumption - Part 5 Set top boxes (STB)《音频 视频和相关设备 功耗的测定 第5部分 机顶盒 (STB)》.pdf
《IEC 62087-5-2015 Audio video and related equipment - Determination of power consumption - Part 5 Set top boxes (STB)《音频 视频和相关设备 功耗的测定 第5部分 机顶盒 (STB)》.pdf》由会员分享,可在线阅读,更多相关《IEC 62087-5-2015 Audio video and related equipment - Determination of power consumption - Part 5 Set top boxes (STB)《音频 视频和相关设备 功耗的测定 第5部分 机顶盒 (STB)》.pdf(22页珍藏版)》请在麦多课文档分享上搜索。
1、 IEC 62087-5 Edition 1.0 2015-06 INTERNATIONAL STANDARD Audio, video and related equipment Determination of power consumption Part 5: Set top boxes (STB) IEC 62087-5:2015-06(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless
2、otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any
3、 questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Gene
4、va 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IE
5、C publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC Inter
6、national Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical com
7、mittee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. Electropedia -
8、www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 15 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossa
9、ry - std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service
10、Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62087-5 Edition 1.0 2015-06 INTERNATIONAL STANDARD Audio, video and related equipment Determination of power consumption Part 5
11、: Set top boxes (STB) INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.160.10 ISBN 978-2-8322-2685-8 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62087-5:2015 IEC 2015 C
12、ONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms, definitions and abbreviations . 6 3.1 Terms and definitions 6 3.2 Abbreviations 8 4 Specification of operating modes and functions . 8 4.1 General . 8 4.2 Auto power down function . 8 5 Measuring conditions for set top
13、 boxes (STBs) 9 5.1 Overview of a set top box 9 5.2 Input signal . 10 5.2.1 General . 10 5.2.2 RF test signal 10 5.2.3 Broadband input signal 10 5.3 Input terminals 11 5.3.1 Analogue terrestrial input terminal . 11 5.3.2 Cable television input terminal . 11 5.3.3 Digital terrestrial input terminal 1
14、1 5.3.4 Satellite input terminal . 11 5.4 Measurement procedure . 11 5.4.1 General measuring conditions . 11 5.4.2 Stabilization . 11 5.4.3 Environmental conditions . 11 5.4.4 Setup . 11 5.4.5 Power measurements 12 Annex A (informative) General information on STB technology 15 A.1 General . 15 A.2 B
15、ackground on STB technology 15 A.3 Testing recording and time shift functions . 16 Bibliography 18 Figure 1 Auto power down function 14 Figure A.1 Block diagram of the common functional parts of an STB 15 Figure A.2 Time shift recording with single tuner 16 Figure A.3 Single tuner multifunction reco
16、rd and playback . 16 Table 1 Operating modes and functions . 9 Table 2 Matrix for multituner STBs . 13 IEC 62087-5:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ AUDIO, VIDEO AND RELATED EQUIPMENT DETERMINATION OF POWER CONSUMPTION Part 5: Set top boxes (STB) FOREWORD 1) The Internation
17、al Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic
18、fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any
19、 IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standard
20、ization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has repre
21、sentation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC
22、 cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional public
23、ations. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas
24、, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents includin
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- IEC6208752015AUDIOVIDEOANDRELATEDEQUIPMENTDETERMINATIONOFPOWERCONSUMPTIONPART5SETTOPBOXESSTB 音频视频 相关

链接地址:http://www.mydoc123.com/p-1237179.html