1、Information technology UPnP Device Architecture Part 28-1:Multiscreen device control protocol Multiscreen architectureTechnologies de linformation Architecture de dispositif UPnP Partie 28-1:Protocole de contrle de dispositif multi-cran Architecture multi-cranINTERNATIONAL STANDARDISO/IEC29341-28-1R
2、eference numberISO/IEC 29341-28-1:2017(E)First edition2017-09 ISO/IEC 2017 ii ISO/IEC 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2017,Published in SwitzerlandAll rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized otherwise in any fo
3、rm or by any means,electronic or mechanical,including photocopying,or posting on the internet or an intranet,without prior written permission.Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh.de Blandonnet 8 CP
4、 401CH-1214 Vernier,Geneva,SwitzerlandTel.+41 22 749 01 11Fax+41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 29341-28-1:2017(E)ISO/IEC 29341-28-1:2017(E)ISO/IEC 2017 All rights reserved iii CONTENTS 1Scope.iv2Normative references.13Terms,definitions,symbols and abbreviations.24Notations and Conve
5、ntions.34.1Notation.34.1.1Data Types.34.1.2Strings Embedded in Other Strings.44.2Derived Data Types.44.2.1CSV Lists.44.2.2XML Document.54.2.3XML Fragment.64.3Management of XML Namespaces in Standardized DCPs.64.3.1Namespace Prefix Requirements.74.3.2Namespace Names,Namespace Versioning and Schema Ve
6、rsioning.84.3.3Namespace Usage Examples.104.4Vendor-defined Extensions.104.4.1Vendor-defined Action Names.104.4.2Vendor-defined State Variable Names.114.4.3Vendor-defined XML Elements and attributes.115Multi-Screen Architectural Overview.115.1Screen Device.115.2Screen Control Point.12Table 1 CSV Exa
7、mples.5Table 2 Namespace Definitions.7Table 3 Schema-related Information.7Table 4 Default Namespaces for the Multi-Screen Specifications.8 ISO/IEC 29341-28-1:2017(E)iv ISO/IEC 2017 All rights reserved Foreword ISO(the International Organization for Standardization)and IEC(the InternationalElectrotec
8、hnicalCommission)formthespecializedsystemforworldwidestandardization.National bodies that are members of ISO or IEC participate in the development ofInternational Standards through technical committees established by the respectiveorganization to deal with particular fields of technical activity.ISO
9、 and IEC technicalcommittees collaborate in fields of mutual interest.Other international organizations,governmental and nongovernmental,in liaison with ISO and IEC,also take part in thework.Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnicalcommittee,ISO/IECJTC1.The procedures
10、 used to develop this document and those intended for its furthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticularthedifferentapproval criteria needed for the different types of document should be noted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part
11、2(seehttp:/www.iso.org/directives).Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/o
12、rontheISOlistofpatentdeclarationsreceived(seewww.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.ForanexplanationonthevoluntarynatureofStandard,themeaningoftheISOspecifictermsandexpressionsrelatedtoconformityassessment,aswell
13、asinformationaboutISOsadherencetotheWTOprinciplesintheTechnicalBarrierstoTrade(TBT)seethefollowingURL:ForewordSupplementaryinformationISO/IEC29341281 was prepared by UPnP Forum and adopted,under the PASprocedure,by joint technical committee ISO/IEC JTC 1,Information technology,inparallelwithitsappro
14、valbynationalbodiesofISOandIEC.ThelistofallcurrentlyavailablepartsofISO/IEC29341series,underthegeneraltitleInformation technology UPnP Device Architecture,canbefoundontheISOwebsite.ISO/IEC 29341-28-1:2017(E)ISO/IEC 2017 All rights reserved v Introduction ISO and IEC draw attention to the fact that i
15、t is claimed that compliance with this document may involve the use of patents as indicated below.ISO and IEC take no position concerning the evidence,validity and scope of these patent rights.The holders of-these patent rights have assured ISO and IEC that they are willing to negotiate licenses und
16、er reasonable and non-discriminatory terms and conditions with applicants throughout the world.In this respect,the statements of the holders of these patent rights are registered with ISO and IEC.Intel Corporation has informed IEC and ISO that it has patent applications or granted patents.Information may be obtained from:Intel Corporation Standards Licensing Department 5200 NE Elam Young Parkway MS:JFS-98 USA Hillsboro,Oregon 97124 Microsoft Corporation has informed IEC and ISO that it has paten
