EN 62665-2016 en Multimedia systems and equipment - Multimedia e-publishing and e-books technologies - Texture map for auditory presentation of printed texts.pdf

1、BSI Standards PublicationM u l t i m e d i a s y s t e m s a n d e q u i p m e n t M u l t i m e d i ae - p u b l i s h i n g a n d e - b o o k s t e c h n o l o g i e s T e x t u r e m a p f o r a u d i t o r y p r e s e n t a t i o n o f p r i n t e d t e x t sBS EN 62665:2016National forewordThis

2、 British Standard is the UK implementation of EN 62665:2016. It is identical to IEC 62665:2015. It supersedes BS EN 62665:2012 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/100, Audio, video and multimedia systems and equipment.A list of organizat

3、ions represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN

4、978 0 580 89615 6ICS 33.160.60; 35.240.20; 35.240.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2016.Amendments/corrigenda issued since publicationDat

5、e Text affectedBRITISH STANDARDBS EN 62665:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 62665 March 2016 ICS 33.160.60; 35.240.20; 35.240.30 Supersedes EN 62665:2012 English Version Multimedia systems and equipment - Multimedia e-publishing and e-books technologies - Texture map for audi

6、tory presentation of printed texts (IEC 62665:2015) Systmes et appareils multimdia - Technologies de ldition lectronique multimdia et des livres lectroniques - Carte de texture pour la prsentation auditive de textes imprims (IEC 62665:2015) Multimediagerte und -systeme - Multimedia e-publishing und

7、e-book Technologien -Textur Abbildung fr die auditive Darstellung von gedruckten Texten (IEC 62665:2015) This European Standard was approved by CENELEC on 2016-01-15. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

8、 Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official version

9、s (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical commit

10、tees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sl

11、ovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC Al

12、l rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62665:2016 E EN 62665:2016 2 European foreword The text of document 100/2431/CDV, future edition 2 of IEC 62665, prepared by Technical Area 10“Multimedia e-publishing and e-book technologies” of

13、 IEC/TC 100 “Audio, video and multimediasystems and equipment” was submitted to the IEC-CENELEC parallel vote and approved byCENELEC as EN 62665:2016. The following dates are fixed: latest date by which the document has to beimplemented at national level bypublication of an identical nationalstandar

14、d or by endorsement(dop) 2016-10-15 latest date by which the nationalstandards conflicting with thedocument have to be withdrawn(dow) 2019-01-15 This document supersedes EN 62665:2012. Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights

15、. CENELEC and/or CEN shall not be held responsible for identifying any or all suchpatent rights. Endorsement notice The text of the International Standard IEC 62665:2015 was approved by CENELEC as a EuropeanStandard without any modification. In the official version, for Bibliography, the following n

16、ote has to be added for the standard indicated: IEC 62875:2015 NOTE Harmonized as EN 62875:2015. BS EN 62665:2016CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Terms and definitions 7 3 Texture map 7 3.1 Names of elements . 7 3.2 Size and data volume 9 3.3 Encoding scheme of a texture map from t

17、exts . 9 3.3.1 General . 9 3.3.2 Processing by SpeechioEncode function 11 3.3.3 Processing by SpeechioSymbol function 12 3.4 Decoding scheme of a texture map to texts . 13 3.5 Example of use of the functions 15 4 Printing of texture map image 16 4.1 General . 16 4.2 Size of image 16 4.3 Position of

18、the texture map and margin on paper 16 Annex A (informative) Input processing (Japanese texts) . 19 A.1 General . 19 A.2 Removal of control codes for text 19 A.3 Specification of particular pronunciation of Kanji . 19 A.4 Specification of voice properties . 19 Annex B (informative) Input processing

19、(English texts) 22 Annex C (informative) Notch, auditory presentation equipment, and etc. 23 C.1 Notch to designate a texture map position. 23 C.2 Printing paper . 23 C.3 Printing and printer . 23 C.4 Copy . 24 C.5 Extension to a texture map . 24 C.6 Examples of auditory presentation equipment . 25

20、Annex D (informative) Example of Reed Solomon error correction encoding using Galois field GF(2048) . 27 Bibliography 42 Figure 1 Shape and elements of a texture map 8 Figure 2 Process of generating texture map from texts 10 Figure 3 Process of text-decoding from texture map 14 Figure 4 Positioning

21、of texture map and margin in paper 17 Figure 5 Example of texture map arrangement . 18 Figure C.1 Notch to designate a texture map position 23 Figure C.2 A texture map with broken alignment lines on two sides . 24 Figure C.3 A texture map with broken alignment lines on four sides . 24 Figure C.4 An

22、example of auditory presentation equipment: SpeechioTM . 25 Figure C.5 Another example of auditory presentation equipment: Speechio PlusTM 26 BS EN 62665:2016 IEC 62665:2015 IEC 2015Table 1 Sizes and data volume of texture maps . 9 Table 2 Size of printed texture map 16 Table A.1 Control codes for s

23、peech . 20 Table A.2 Characters (character strings) for identifying the end of a sentence . 21 Table B.1 Characters (character strings) for identifying the end of a sentence . 22 Table B.2 Abbreviation or acronym with “.“. 22 BS EN 62665:2016 IEC 62665:2015 IEC 2015INTERNATIONAL ELECTROTECHNICAL COM

24、MISSION _ MULTIMEDIA SYSTEMS AND EQUIPMENT MULTIMEDIA E-PUBLISHING AND E-BOOK TECHNOLOGIES TEXTURE MAP FOR AUDITORY PRESENTATION OF PRINTED TEXTS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical c

25、ommittees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Techn

26、ical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmen

27、tal and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or ag

28、reements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international us

29、e 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 cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to prom

30、ote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indic

31、ated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6)

32、 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 including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damag

33、e or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publi

34、cation. Use of the referenced publications is indispensable for the correct application of this publication. International Standard IEC 62665 has been prepared by technical area 10: Multimedia e-publishing and e-book technologies, of IEC technical committee 100: Audio, video and multimedia systems a

35、nd equipment. This second edition cancels and replaces the first edition published in 2012 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition. a) Two different control codes are described by the different terms

36、: “control codes for text“ and “control codes for speech“. b) Pack processing and LZSS processing are shown in their additional subclauses. c) An example of the header file “Speechio.h“ is added. d) An example of error correction encoding is shown in additional Annex D. BS EN 62665:2016 IEC 62665:20

37、15 IEC 2015The text of this standard is based on the following documents: CDV Report on voting 100/2431/CDV 100/2507/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance

38、 with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reco

39、nfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understand

40、ing of its contents. Users should therefore print this document using a colour printer. BS EN 62665:2016 IEC 62665:2015 IEC 2015INTRODUCTION Information interchange via printed documents between blind or visually impaired people has been carried out by using Braille. However, in order to be able to

41、read Braille, particular tuition is required. Learning Braille is very difficult for aged as well as visually non-impaired people. Printed documents with texts and text-encoded texture maps can be interchanged by ordinary circulation or publication mechanisms. They are readable as ordinary printed m

42、aterials and comprehensible by blind or visually impaired people with the support of decoding and auditory presentation equipment. Today, interchanging of printed documents has become wide-spread and international. The text-encoding scheme to generate a texture map should therefore be standardized a

43、t an international level. Patent The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance with this document may involve the use of patents as listed below: PATENT No. 3499220 (Japan) PATENT No. 4439756 (Japan) PATENT No. 4744745 (Japan) PATE

44、NT No. 4772631 (Japan) IEC takes no position concerning the evidence, validity and scope of these patent rights. The holder of these patent rights has assured the IEC that he/she is willing to negotiate licences either free of charge or under reasonable and non-discriminatory terms and conditions wi

45、th applicants throughout the world. In this respect, the statement of the holder of these patent rights is registered with IEC. Information may be obtained from: Original Design Inc. 4-16-2 Ikebukuro, Toshima-ku Tokyo 171-0014 Japan Kosaido Co., Ltd. 4-6-12 Shiba, Minato-ku Tokyo 108-8378 Japan Atte

46、ntion is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. IEC shall not be held responsible for identifying any or all such patent rights. ISO (www.iso.org/patents) and IEC (http:/patents.iec.ch) maintain on-li

47、ne data bases of patents relevant to their standards. Users are encouraged to consult the data bases for the most up to data information concerning patents. BS EN 62665:2016 IEC 62665:2015 IEC 2015MULTIMEDIA SYSTEMS AND EQUIPMENT MULTIMEDIA E-PUBLISHING AND E-BOOK TECHNOLOGIES TEXTURE MAP FOR AUDITO

48、RY PRESENTATION OF PRINTED TEXTS 1 Scope In order to generate a texture map for auditory presentation of printed text information, this International Standard specifies a text encoding scheme to generate a texture map, a physical shape and dimension of the texture map for printing, additional featur

49、es for texture map printing, texture map decoding and an auditory presentation of decoded texts.These specifications enable the interchange of documents and publications between visually impaired and non-impaired people. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 texture map two dimensional cell patterns which include alignment lines and a data matrix which is generated from text data compression and error correct