Pioneer 厂家资料

DigitalBroadcastingandDigitalConsumerElectronicsOsamuYamadaManagingDirectorGeneralManagerofR&DGroupPioneerCorporationIAFAShanghai2004Tableofcontents1.DigitalBroadcasting(1)BSDigitalBroadcasting(2)TerrestrialBroadcasting2.DigitalConsumerElectronics(1)MarketVolume(2)FlatPanelDisplay(3)RecordingDevices(4)DigitalHomeNetworking3.Conclusion1.DigitalBroadcastingDigitalBroadcastingFeatures1.Noiserobustness2.Easytoplanchannelassignment3.Effectiveuseofbandwidth4.Mobilreception5.Usageofvideocompressiontechnology6.Affinitytocomputerandinternet7.EasytoaddnewservicesISDBfamilyISDB:IntegratedServicesDigitalBroadcasting-SatelliteDigitalBroadcasting:ISDB-S-TerrestrialDigitalBroadcasting:ISDB-T-TerrestrialDigitalSoundBroadcasting:ISDB-TSB-CableTransmission:ISDB-CScheduleCableSatellite12GHzBandUSAudioTV942000969802040806(CS)(BS)▽▽DirecTV,USSBetc.▽▽DTVEndofAnalogBroadcasting▽CanalSat.etc.(France,Italy,Germany,Spainetc.)▽UK(BBC)etc.▽Startbroadcastingin3metropolitanareas▽110degreeCS▽▽ISDB-SISDB-TYearTestbroadcastinginTokyo,Osaka[AnalogBroadcastingwillbeclosedin2011]TerrestrialEuropeJapanTerrestrialTerrestrialSatelliteSatelliteISDB-TsbISDB-C(1)BSDigitalBroadcastingSystemrequirementsandprincipaltechnologies1.TwoHDTVprogramshouldbetransmittedbyonechannelofBSTC8PSKandexpansionofthebandwidth(from27to34.5MHz)2.ServiceavailabilityshouldbeequaltoBSanalogbroadcastingHierarchicaltransmission(TMCC,QPSK,BPSK)3.SufficienttransmissionbandwidthfordatabroadcastingTC8PSKandexpansionofthebandwidth4.SignalindependencebetweeneachbroadcastingcompanyMultipleTS5.CATVcapabilityMultipleTSCharacteristicsVideocodingMPEG-2Video1080i(16:9)Videoformat480p(16:9)480i(16:94:3)720p(16:9)AudiocodingMPEG-2(AAC)TC8PSKModulationQPSKBPSK(TMCCusesDBPSK)ErrorcorrectionOutercoding:Reed-Solomon(204,188)Innercoding:TC8PSK-treliscodingQPSK/BPSK-convolutioncodingConvolutioncodebandwidth(MHz)34.5Datarate(Mbps)approximately52(maximum)CodingforinformationConditionsforbandwidthCodingfortransmissionBSDigitalinJapanDigitalBS-1DigitalBS-3DigitalBS-13DigitalBS-15DDDDDAAAAAwowowBS-5NHKBS-1BS-7Hivision(MUSE)BS-9NHKBS-2BS-11DigitalHDTVaDigitalHDTVbDigitalHDTVaSDTVaSDTVbSDTVcDigitalBroadcasting(startin2000)AnalogueBroadcasting(Exitingservice)AudioBroadcastingDataBroadcasting(2)TerrestrialDigitalBroadcastingSystemrequirementsandprincipaltechnologies1.ExcellenttransmissioncharacteristicsOFDM2.MobilereceptionOFDMandTimeinterleave3.SystemflexibilitySegmentstructure4.EffectiveuseoffrequencySFNCharacteristicsModeMode1Mode2Mode3(Mobile)(Mobile,Fixed)(Fixed)Numberofcarrier140528094992Carrierdistance3.968kHz1.984kHz0.992kHzValidsymbollength0.252ms0.504ms1.008msGuardintervallength1/4,1/8,1/16,1/32ofvalidsymbollengthErrorinnercodingConvolutioncoding(1/2,2/3,3/4,5/6,7/8)correctionoutercodingReed-Solomon(208,188)TimedomaininterleaveConvolution0,0.1,0.2,0.4secondOFDMsegment13Bitrate3.65–23.23MbpsSegmentTelevisionBroadcastAudioBroadcastPartialReceiveDataSegmentTransmissionSpectrumAudioProgramHi-VisionProgramOFDFSegmentSimpleTV(Mobile)StandardTV(Mobile)StandardTV(Home)AudioProgramAudioProgramData,etcTerrestrialDigitalTelevisionSetTerrestrialDigitalAudioReceiverChannelreassignment01002003004005006007001234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162VHFＵＨＦChannelMainlyassignedtolowchannelsofUHFReassignedwithanalogtoanalogchannelsift13141516171819………2526272829303132ChannelsforDigitalBroadcasting…SiftsomepartofanalogchannelsexceptmainchannelsSomechannelshavenoalternativechannelNumberofStationEffectofinterleave01020304010-710-610-510-410-310-210-1100BERC/N[dB]withouttimeinterleavingwithtimeinterleavingfd=7Hzfd=20Hzfd=70HzDQPSK(1/2convol.Code),Mode2(2kFFT)beforeRS,Timeinterleaving:0.5sec.ComparisonofBroadcastStandardsItemJapan(ISDB-T)Europe(DVB-T)US(DTV)NoteFormatBST-OFDMOFDM8VSBGhost○○△JapanandEuropeemployOFDM,whichagainstghost.8VSBofUScansuppressghostwithghostcanceller.Effectiveuseofbandwidth○○×OFDMcanmakenetworkwithonefrequency(SFN).Mobilereceiver○△×DVB-Tcanmobilereceptioninagoodconditionarea.Flexibility○△×ThesegmentationtechnologyallowsISDB-TtoprovideHDTVandaudio/SDTVprogramssimultaneously.2.DigitalConsumerElectronics(1)MarketVolumePenetrationofDigitalTVReceivers•BS(2000.12–2004.6)：6,024,000•Terrestrial(2003.12–2004.6)：1,393,000Volumeofshipments/digitalinformationconsumerelectronicsinJapan0200400600800100012001400DVD-VideoCarNavigationCellular（unitx10）DigitalCameraPCBSDigital199719981999200020012002Unit[x1000][Year]FromJEITA,CIPA,TCA,NHK20031400012000100008000600040002000(2)FlatPanelDisplayComparisonofFlatPanelDisplayproLargerSizeHigherResolutionproThinDisplayEmissionEfficiencyViewingangleResponseColordisplayIssuesＰＤＰ○32～60inch△○△1.8lm/W◎○○CostcuttingＬＣＤ△1.3～54inch○○△1.8lm/W▲▲○Viewingangledependence,everonbacklightpowerconsumptionＦＥＤ△○△△◎○○needtoestablishreliabilityOELD▲1.1～20inch○◎○5.4lm/W◎○○LongerlifeInorganicELD▲○○△◎○▲HighvoltageoperationBluematerialsneedtobeimproved•“proLargerSize”:Prototypepanelsizeinclusive•Emissionefficiency:OELD’