1、 IEC/TR 62780 Edition 1.0 2012-07 TECHNICAL REPORT Multimedia systems and equipment Multimedia e-publishing and e-book Guideline for protection against mechanical stress during distribution of e-books in CD and DVD media IEC/TR 62780:2012(E) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copy
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9、tion 1.0 2012-07 TECHNICAL REPORT Multimedia systems and equipment Multimedia e-publishing and e-book Guideline for protection against mechanical stress during distribution of e-books in CD and DVD media INTERNATIONAL ELECTROTECHNICAL COMMISSION M ICS 17.100; 33.160.99; 35.220.30; 55.020 PRICE CODE
10、ISBN 978-2-83220-221-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 TR 62780 IEC:2012(E) CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Term
11、s and definitions . 6 4 Residual strain of CD and DVD media 7 5 Guideline for protection of CD and DVD media . 7 5.1 Medium inclusion within a book or magazine . 7 5.1.1 Attaching a medium envelope on a page . 7 5.1.2 Attaching a medium envelope to a gutter . 8 5.1.3 Binding a substrate including a
12、medium . 8 5.1.4 Attaching a substrate including a medium to a cover of a casebound book 9 5.2 Media clamped in a medium case 9 Annex A (informative) Experiments and simulation of mechanical properties of CD and DVD media. 10 Bibliography 13 Figure 1 Attaching a medium envelope on a page 8 Figure 2
13、Attaching a medium envelope (of paper or film) on a gutter 8 Figure 3 Bookbinding of a substrate that includes a medium 9 Figure 4 Attaching a substrate that includes a medium on a cover of casebound book . 9 Figure A.1 Shape of the test piece . 10 Figure A.2 Stress-strain diagram 10 Figure A.3 Elas
14、tic limit observed in loading and unloading experiments . 11 Figure A.4 Stress distribution in DVD media . 11 Figure A.5 Bending test equipment 12 Figure A.6 Support and load positions on the disc medium 12 TR 62780 IEC:2012(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MULTIMEDIA SYSTEMS AND EQU
15、IPMENT MULTIMEDIA E-PUBLISHING AND E-BOOK GUIDELINE FOR PROTECTION AGAINST MECHANICAL STRESS DURING DISTRIBUTION OF E-BOOKS IN CD AND DVD MEDIA FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical com
16、mittees (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, Technic
17、al 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, governmenta
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21、te 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 indica
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23、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 damage
24、 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 public
25、ation. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all suc
26、h patent rights. The main task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an International Standard, for ex
27、ample “state of the art“. IEC 62780, which is a technical report, has been prepared by technical area 10: Multimedia e- publishing and e-book technologies, of IEC technical committee 100: Audio, video and multimedia systems and equipment. 4 TR 62780 IEC:2012(E) The text of this technical report is b
28、ased on the following documents: Enquiry draft Report on voting 100/1927/DTR 100/1972/RVC Full information on the voting for the approval of this technical report can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Direc
29、tives, 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 reconfirmed, withdrawn, rep
30、laced by a revised edition, or amended. 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 understanding of its contents. Users should therefore print this document using a colour printer. A bili
31、ngual version of this publication may be issued at a later date. TR 62780 IEC:2012(E) 5 INTRODUCTION Some e-books are distributed by using interchangeable optical storage media such as CDs and DVDs. Those storage media are distributed being bound in paper books/magazines or attached to them in other
32、 appropriate manners. The media bound or included in books/magazines are suffered from strong pressure during their distribution and/or keeping, and sometimes become so damaged (broken or distorted) that e-book data can no longer be read. In order to minimize those damages of e-books during their di
33、stribution, a guideline for protection against mechanical stress during distribution of e-books is required. Existing standards of optical storage media specify nothing about stress-strain characteristics. The guideline should specify how to deal with interchangeable optical storage media bound or i
34、ncluded in paper books/magazines. Those specifications should be based on the stress- strain characteristics of the interchangeable optical storage media. 6 TR 62780 IEC:2012(E) MULTIMEDIA SYSTEMS AND EQUIPMENT MULTIMEDIA E-PUBLISHING AND E-BOOK GUIDELINE FOR PROTECTION AGAINST MECHANICAL STRESS DUR
35、ING DISTRIBUTION OF E-BOOKS IN CD AND DVD MEDIA 1 Scope This Technical Report provides protection schemes against mechanical stress during distribution or keeping of e-books (see IEC 62229) stored in interchangeable optical storage media such as CDs and DVDs, and shows the stress-strain characterist
36、ics of the interchangeable storage media from which the protection schemes are derived. This Technical Report supplements the information of handling multimedia e-books defined in IEC/TS 62229. 2 Normative references The following documents, in whole or in part, are normatively referenced in this do
37、cument and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62229:2005, Multimedia systems and equipment Multimedia e-publishing and e-book Concep
38、tual model for multimedia e-publishing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 residual strain permanent strain after unloading 3.2 retaining force of disk center hole friction force between the center hole of a disk and the protrusio
39、n of the disk holder in a disk case, to hold the disc in the disk case Note 1 to entry: This force depends on the diameter of the center hole, the diameter of the disk holder protrusion, material and the surface finish of the protrusion, and of the structure of the disk holder. 3.3 elastic limit res
40、idual strain generated when stress limit is exceeded 3.4 casebound book book consisting of a stitched book block and bound in a hard cover TR 62780 IEC:2012(E) 7 3.5 gutter page edge for binding Note 1 to entry: See JIS Z 8125. 3.6 saddle stitching binding by gutter wiring Note 1 to entry: See JIS Z
41、 8125. 3.7 adhesive binding binding by gutter pasting Note 1 to entry: See JIS Z 8125. 4 Residual strain of CD and DVD media No residual strain is generated in CD and DVD media when the deflection at the point of 35 mm distance from the center of the disk is lower than 8,8 mm. Those characteristics
42、are given by the simulation and experiments shown in Clause A.2. Therefore, CD and DVD media should be kept within the limit bending during their distribution. NOTE The characteristics are valid for all the CD and DVD media used in e-books and other CD/DVD applications. In order to keep the loading
43、within the elastic limit during the distribution of e-books stored in CD and DVD media, bound in paper books/magazines or attached to them, the protection schemes of 5.1 and 5.2 are recommended. 5 Guideline for protection of CD and DVD media 5.1 Medium inclusion within a book or magazine 5.1.1 Attac
44、hing a medium envelope on a page A medium envelope made by paper or film is attached on a page, as shown in Figure 1. The medium inclusion scheme can be applied to books (with saddle stitching or adhesive binding) or magazines with such thickness that up to 20 books or magazines can be wrapped for c
45、onveying. 8 TR 62780 IEC:2012(E) Figure 1 Attaching a medium envelope on a page 5.1.2 Attaching a medium envelope to a gutter A medium envelope made by paper or film is attached to a gutter, as shown in Figure 2. The medium inclusion scheme can be applied to books (with saddle stitching or adhesive
46、binding) or magazines with such thicknesses that up to 20 books or magazines can be wrapped together. Figure 2 a Paper envelope Figure 2 b Film envelope Figure 2 Attaching a medium envelope (of paper or film) on a gutter 5.1.3 Binding a substrate including a medium A medium is included in a substrat
47、e that is bound in a book with adhesive binding or a magazine, as shown in Figure 3. In this inclusion of a medium, the substrate is requested to protect the medium within the bending limit as specified in Clause 4. IEC 1345/12 IEC 1346/12 IEC 1347/12 TR 62780 IEC:2012(E) 9 Figure 3 Bookbinding of a
48、 substrate that includes a medium 5.1.4 Attaching a substrate including a medium to a cover of a casebound book A medium is included in a substrate that is attached to a cover of a casebound book, as shown in Figure 4. In this inclusion of a medium, the substrate is requested to protect a medium wit
49、hin the bending limit, as specified in Clause 4. Figure 4 Attaching a substrate that includes a medium on a cover of casebound book 5.2 Media clamped in a medium case When a medium is included in a medium case, it is clamped onto the center hole. The retaining force of the clamps of the disk center hole should be released within the bending limit as specified in Clause 4. IEC 1348/12 IEC 1349/12 10 TR 62780 IEC:2012(E) Annex A (informative) Experiments
