ITU-T J.2 (09 1999)(英) Guidelines on the use of so

INTERNATIONALTELECOMMUNICATIONUNIONJ.2TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU(09/99)SERIESJ:TRANSMISSIONOFTELEVISION,SOUNDPROGRAMMEANDOTHERMULTIMEDIASIGNALSGeneralRecommendationsGuidelinesontheuseofsomeITU-TRecommendationsintheJseriesITU-TRecommendationJ.2(PreviouslyCCITTRecommendation)ITU-TJ-SERIESRECOMMENDATIONSTRANSMISSIONOFTELEVISION,SOUNDPROGRAMMEANDOTHERMULTIMEDIASIGNALSForfurtherdetails,pleaserefertoITU-TListofRecommendations.GeneralRecommendationsJ.1–J.9Generalspecificationsforanaloguesound-programmetransmissionJ.10–J.19Performancecharacteristicsofanaloguesound-programmecircuitsJ.20–J.29Equipmentandlinesusedforanaloguesound-programmecircuitsJ.30–J.39Digitalencodersforanaloguesound-programmesignalsJ.40–J.49Digitaltransmissionofsound-programmesignalsJ.50–J.59CircuitsforanaloguetelevisiontransmissionJ.60–J.69Analoguetelevisiontransmissionovermetalliclinesandinterconnectionwithradio-relaylinksJ.70–J.79DigitaltransmissionoftelevisionsignalsJ.80–J.89AncillarydigitalservicesfortelevisiontransmissionJ.90–J.99OperationalrequirementsandmethodsfortelevisiontransmissionJ.100–J.109InteractivesystemsfordigitaltelevisiondistributionJ.110–J.129TransportofMPEG-2signalsonpacketisednetworksJ.130–J.139MeasurementofthequalityofserviceJ.140–J.149DigitaltelevisiondistributionthroughlocalsubscribernetworksJ.150–J.159RecommendationJ.2(09/99)iITU-TRECOMMENDATIONJ.2GUIDELINESONTHEUSEOFSOMEITU-TRECOMMENDATIONSINTHEJSERIESSummaryThisRecommendationisintendedtoprovideguidanceontheapplicationofITU-TRecommendationsintheJseries,inorderthatthereadermaymorereadilyidentifythoseRecommendationsthatheshouldconsulttoobtaindetailedinformationonthetechnicalaspectsofhisspecificinterest.SourceITU-TRecommendationJ.2wasrevisedbyITU-TStudyGroup9(1997-2000)andwasapprovedundertheWTSCResolutionNo.1procedureon16September1999.iiRecommendationJ.2(09/99)FOREWORDITU(InternationalTelecommunicationUnion)istheUnitedNationsSpecializedAgencyinthefieldoftelecommuni-cations.TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganoftheITU.TheITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.TheWorldTelecommunicationStandardizationConference(WTSC),whichmeetseveryfouryears,establishesthetopicsforstudybytheITU-TStudyGroupswhich,intheirturn,produceRecommendationsonthesetopics.TheapprovalofRecommendationsbytheMembersoftheITU-TiscoveredbytheprocedurelaiddowninWTSCResolutionNo.1.InsomeareasofinformationtechnologywhichfallwithinITU-T’spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.NOTEInthisRecommendationthetermrecognizedoperatingagency(ROA)includesanyindividual,company,corporationorgovernmentalorganizationthatoperatesapubliccorrespondenceservice.ThetermsAdministration,ROAandpubliccorrespondencearedefinedintheConstitutionoftheITU(Geneva,1992).INTELLECTUALPROPERTYRIGHTSTheITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthisRecommendationmayinvolvetheuseofaclaimedIntellectualPropertyRight.TheITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideoftheRecommendationdevelopmentprocess.AsofthedateofapprovalofthisRecommendation,theITUhadnotreceivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthisRecommendation.However,implementorsarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabase.
ITU2000Allrightsreserved.Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromtheITU.RecommendationJ.2(09/99)iiiCONTENTSPage1Scope..............................................................................................................................................................12References......................................................................................................................................................13GuidelinesontheuseofITU-TRecommendationsintheJseries.................................................................1RecommendationJ.2(09/99)1RecommendationJ.2RecommendationJ.2(09/99)GUIDELINESONTHEUSEOFSOMEITU-TRECOMMENDATIONSINTHEJSERIES(revisedin1999)1ScopeThisRecommendationisintendedtoprovideguidanceontheapplicationofITU-TRecommendationsintheJseries,inorderthatthereadermaymorereadilyidentifythoseRecommendationsthatheshouldconsulttoobtaindetailedinformationonthetechnicalaspectsofhisspecificinterest.2ReferencesThelistsofthoseRecommendationsintheJseriesthatarecoveredinthepresentRecommendation,andguidelinesontheirapplication,arefoundinSupplement5totheJseriesofRecommendations;thelistsgivethenumber,themonthandyearofadoption,andthetitleforeachRecommendationdiscussed.3GuidelinesontheuseofITU-TRecommendationsintheJseriesItisrecommendedthat,inordertomorereadilyidentifytheRecommendationsintheJseriesthatmaybeofhisspeci