ISO-TR-11548-1-2001.pdf
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1、 Reference number ISO/TR 11548-1:2001(E) ISO 2001 TECHNICAL REPORT ISO/TR 11548-1 First edition 2001-12-15 Communication aids for blind persons Identifiers, names and assignation to coded character sets for 8-dot Braille characters Part 1: General guidelines for Braille identifiers and shift marks A
2、ides la communication pour personnes aveugles Identificateurs, noms et attribution aux jeux de caractres cods pour caractres Braille 8 points Partie 1: Lignes directrices gnrales pour les identificateurs Braille et marques de changement de caractres ISO/TR 11548-1:2001(E) PDF disclaimer This PDF fil
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5、eation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2001 All rights reserved. Unl
6、ess 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 ISO at the address below or ISOs member body in the country of the requester. ISO
7、copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2001 All rights reserved ISO/TR 11548-1:2001(E) ISO 2001 All rights reserved iii Contents Page Foreword.iv Introduction.v 1 Scope1 2 Ter
8、ms and definitions .1 3 Braille pattern structure, identification and coding.2 3.1 Braille pattern structure2 3.2 Universal multiple-Octet Coded Character Set (UCS) .2 3.3 Braille identifier3 4 Shift marks .15 5 Assignation of character set indicators16 Annex A Code tables according to ISO/IEC 10646
9、-1:2000.17 Bibliography21 ISO/TR 11548-1:2001(E) iv ISO 2001 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
10、 ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborate
11、s closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards
12、. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In exceptional circumstances, when a technical committee has collected
13、data of a different kind from that which is normally published as an International Standard (“state of the art”, for example), it may decide by a simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely informative in nature and does not have to
14、 be reviewed until the data it provides are considered to be no longer valid or useful. Attention is drawn to the possibility that some of the elements of this part of ISO/TR 11548 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. I
15、SO/TR 11548-1 was prepared by Technical Committee ISO/TC 173, Technical systems and aids for disabled or handicapped persons. ISO/TR 11548 consists of the following parts, under the general title Communication aids for blind persons Identifiers, names and assignation to coded character sets for 8-do
16、t Braille characters: Part 1: General guidelines for Braille identifiers and shift marks Part 2: Latin alphabet based character sets Further parts may be developed to meet the needs of other languages, such as Arabic, Chinese, Japanese, etc. ISO/TR 11548-1:2001(E) ISO 2001 All rights reserved v Intr
17、oduction The objective of this Technical Report is, in addition to ISO/IEC 10646-1:2000 which encodes 8-dot Braille patterns, to assign semantics to 8-dot Braille patterns via mapping to other coded character sets. Their coding with the 8-bit code is determined in order to set guidelines for the man
18、ufacturing of compatible input and output equipment using the Braille system. This enables visually-impaired persons to interprete the output of data processing equipment and facilitates communication with sighted people. This Technical Report is neither intended to create a new code nor to alter or
19、 modify existing 6-dot Braille systems. As there are many different character sets used worldwide (e.g. Arabic, Chinese, Japanese, Latin) a corresponding number of reference tables is necessary. The standardization work started with defining general guidelines for Braille identifiers and shift marks
20、 as well as in creating the reference for Latin alphabet based character sets; further expansion to other character sets is encouraged. TECHNICAL REPORT ISO/TR 11548-1:2001(E) ISO 2001 All rights reserved 1 Communication aids for blind persons Identifiers, names and assignation to coded character se
21、ts for 8-dot Braille characters Part 1: General guidelines for Braille identifiers and shift marks 1 Scope This part of ISO/TR 11548 specifies short identifiers for 8-dot Braille patterns in addition to the names specified in ISO/IEC 10646-1:2000. As there are many different code tables in use deali
22、ng with various character sets (e.g. Arabic, Chinese, Japanese, Latin) and for special purposes (e.g. chemistry, mathematics and music notation), this part of ISO/TR 11548-1 also defines a method of shifting between various Braille tables. This part of ISO/TR 11548 is intended to be used by users an
23、d manufacturers of 8-dot Braille input and output devices, interfaces and software for data exchange. This part of ISO/TR 11548 does not apply to 6-dot Braille, and does not specify any physical dimension of Braille characters. 2 Terms and definitions For the purposes of this part of ISO/TR 11548, t
24、he definitions given in ISO/IEC 10367 and the following apply. 2.1 Braille writing system consisting of tactile dot combinations to be used by blind persons 2.2 6-dot Braille dot combination arranged as follows: 1? ?4 2? ?5 3? ?6 2.3 8-dot Braille dot combination arranged as follows: 1? ?4 2? ?5 3?
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