标签: definition

UniversalSerialBusDeviceClassDefinitionforAudioDevices

USBDeviceClassDefinitionforHIDUniversalSerialBus(USB)DeviceClassDefinitionforHumanInterfaceDevices(HID)FirmwareSpecification―6/27/01Version1.11Pleasesendcommentsviaelectronicmailto:hidcomments@usb.org1996-2001USBImplementers’Forum―Allrightsreserved.6/27/01iiiContents1.Preface........................................................................................................vii1.1IntellectualPropertyDisclaimer...........................................................vii1.2Contributors..........................................................................................vii1.3ScopeofthisRevision..........................................................................viii1.4RevisionHistory...............................................................……

建立用户的LCD字符显示ApplicationNoteAN211CreatingCustomLCDCharactersIntroductionThisapplicationnotedescribesthemethodofcreatingcustomcharactersonLCDandVFDdis-playsthatusetheHitachiHD44780oracompatiblecontroller.ThecodedescribedherebuildsondisplayfunctionsfromICOM.LIB,theIntellicomdriverlibrary.CustomLCDCharactersInadditiontotheactualdisplayRAM,thewidely-usedHitachiHD44780LCDcontrollercontainsenough“charactergeneration”RAM(CGRAM)foreight5x8characters.WhenASCIIvalues0-7aresenttotheLCD,theactualcharacterimageistakenfromtheCGRAMinsteadofthefixedcharacterROM.CharacterDefinitionThecharactersaredefinedaseightbytes,oneforeachhori……

系统定义与分析嵌入式系统概论五系统定义与分析北京大学软件与微电子学院嵌入式系统概论定义与分析-ObjectsTointroducetheconceptsofembeddedsystemrequirementsTodescribefunctionalandnon-functionalrequirementsToexplaintwotechniquesfordescribingembeddedsystemrequirementsToexplainhowsoftwarerequirementsmaybeorganizedinarequirementsdocument北京大学软件与微电子学院嵌入式系统概论定义和分析-主要内容SystemDefinitionSystemAnalysisSummary北京大学软件与微电子学院嵌入式系统概论SystemDefinitionTermsandConceptsDevelopingACommonUnder……

【应用手册】AN559:HighDefinition(HD)VideoReferenceDesign(V1)TheAltera®V-Seriesofreferencedesignsdeliverhigh-qualityup,down,andcrossconversionofstandarddefinition(SD),highdefinition(HD)and3gigabitspersecond(Gbps)videostreamsininterlacedorprogressiveformat.Thereferencedesignsarehighlysoftwareandhardwareconfigurable,enablingrapidsystemconfigurationanddesign.Thedesignshavebeendevelopedtargetingtypicalbroadcastapplicationssuchasswitcher,multi-viewer,converter,andvideoconferencingproducts.TheV-SeriesofreferencedesignsisanevolutionoftheM-Seriesofvideoprocessingreferencedesigns(M1–M5).TheV-Seriesprovidesaroadmapoffunctionalitykeytobroadcastapplications,aswellasrun-timecapabilityandsoftwareconfigurabilitytypicallyassociatedwithASSPs.AN559:HighDefinition(HD)VideoReferenceDesign(V1)December2008AN-559-1.0IntroductionTheAlteraV-Seriesofreferencedesignsdeliverhigh-qualityup,down,andcrossconversionofstandarddefinition(SD),highdefinition(HD)and3gigabitspersecond(Gbps)videostreamsininterlacedorprogressiveformat.Thereferencedesignsarehighlysoftwareandhardwareconfigurable,enablingrapidsystemconfigurationanddesign.The……

【应用手册】HighDefinition(HD)VideoMonitoringReferenceDesign(Milestone4)TheAltera®HighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usableandparameterizablevideoframework.Allhardwarefunctionsinthereferencedesignsusestandard,openinterfacesandprotocolstofacilitatefunctionre-useandsystemdesign.Specifically,thedesignsusetheAlteraVideoandImageProcessingSuiteMegaCore®functionslibrary,theSDIMegaCore®function,theDDR2HighPerformanceMemoryControllerMegaCore®function,andsupportingdevelopmenttools.HighDefinition(HD)VideoMonitoringReferenceDesign(Milestone4)April2008,ver1.0ApplicationNote524IntroductionTheAlteraHighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usable……

【应用手册】AN542:HighDefinition(HD)VideoMonitoringReferenceDesign(M5)TheAltera®HighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usableandparameterizablevideoframework.Allhardwarefunctionsinthereferencedesignsusestandard,openinterfacesandprotocolstofacilitatefunctionre-useandsystemdesign.Specifically,thedesignsusetheAlteraVideoandImageProcessingSuiteMegaCore®functionslibrary,theSDIMegaCore®function,theDDR2HighPerformanceMemoryControllerMegaCore®function,andsupportingdevelopmenttools.AN542:HighDefinition(HD)VideoMonitoringReferenceDesign(M5)November2008AN-542-1.2IntroductionTheAlteraHighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usableandparameterizablevideoframework.Allhardwaref……

【应用笔记】AN482:高清视频监控参考设计(里程碑2)(AN482:HighDefinition(HD)VideoMonitoringReferenceDesign(M2))Altera公司的高清(HighDefinition,HD)视频监控参考设计演示了Altera公司的工具和器件在广播和视频监视方面的应用。该参考设计提供了一个基础工作模板，该模板可以用来作为一个灵活的、可重用的和参数化的视频框架，快速地进一步构建广播应用。参考设计中的所有硬件功能都使用标准化的、开放的接口和协议来使功能重用和系统设计更加便利。TheAltera®HighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usableandparameterizablevideoframework.Allhardwarefunctionsinthereferencedesignsusestandard,openinterfacesandprotocolstofacilitatefunctionre-useandsystemdesign.AN482:HighDefinition(HD)VideoMonitoringReferenceDesign(M2)August2008AN-482-4.0IntroductionTheAlteraHighDefinition(HD)VideoMonitoringReferenceDesignsdemonstratetheapplicationofAlteratoolsanddevicestobroadcastandvideosurveillanceapplications.Thereferencedesignsprovideaworkingtemplatethatcanbeusedtorapidlybuildfurtherbroadcastapplicationsusingaflexible,re-usableandparameterizablevideoframework.Allhardwarefunctionsinthereference……

【应用笔记】AN581:高清视频参考设计(V2)(AN581:HighDefinition(HD)VideoReferenceDesign(V2))Altera的V系列参考设计提出了对标清(SD)、高清(HD)及隔行扫描或逐行格式的3吉比特/秒(Gbps)视频流的高质量的上、下、交叉转换。TheAltera®V-Seriesofreferencedesignsdeliverhigh-qualityup,down,andcrossconversionofstandarddefinition(SD),highdefinition(HD)and3gigabitspersecond(Gbps)videostreamsininterlacedorprogressiveformat.Thereferencedesignsarehighlysoftwareandhardwareconfigurable,enablingrapidsystemconfigurationanddesign.Thedesignshavebeendevelopedtargetingtypicalbroadcastapplicationssuchasswitcher,multi-viewer,converter,andvideoconferencingproducts.AN581:HighDefinition(HD)VideoReferenceDesign(V2)November2009AN-581-1.0IntroductionTheAlteraV-Seriesofreferencedesignsdeliverhigh-qualityup,down,andcrossconversionofstandarddefinition(SD),highdefinition(HD)and3gigabitspersecond(Gbps)videostreamsininterlacedorprogressiveformat.Thereferencedesignsarehighlysoftwareandhardwareconfigurable,enablingrapidsystemconfigurationanddesign.Th……

WAVECOM射频PPT,Shieldingdefinition……

HighDefinitionMPEG-2VideoDecoderHighDefinitionMPEG-2VideoDecoderCS6650VirtualComponentsfortheConvergingWorldTMTheCS6650high-definitionMPEG2decoderisdesignedtoprovidehighperformancesolutionsforabroadrangeofmotionimageapplications.Thishighlyintegratedapplicationspecificcoreisdevelopedforstandarddefinitionvideo,compliantwithISO/IEC13818-2(MPEG2)andcapableofdecodingvideostreamsupto4:2:2ProfileatHighLevel(422@HL).TheCS6650isequallyathomeinmainstreamconsumerapplications,decoding4:2:0bitstreamsatHighorMainLevel(MP@HL)andcanalsodecodeMPEG1(ISO/IEC11172-2)bitstreams.TheCS6650isavailableinASICnetliststhathavebeenhandcraftedbyAmphionforoptimalperformancewhileminimizingpowerconsumptionandsiliconarea.InputVideoData……

摘要：本应用笔记提供了一个视频数字化的概述，并产生频谱边带。文章分析到模拟视频转换成数字视频后面的过程，并解释如何视频重建需要适当的过滤技术。提供的例子，以避免或减少云纹效果和图片文物。Maxim>AppNotes>GeneralEngineeringTopicsKeywords:analog,video,reconstruction,moiré,picture,artifacts,digital,quantization,low,pass,filter,anti-alias,converter,ADC,DAC,Sep18,2008clock,sample,boxcar,Nyquist,Standard,Definition,SD,PAL,NTSC,High,HD,ATSC,MPEGAPPLICATIONNOTE4287ReconstructingAnalogVideowiththeMaximVideoFilterFamilyBy:BillLaumeisterAbstract:Thisapplicationnoteprovidesanoverviewofvideodigitization,andthespectrumandsidebandsproduced.Thearticleexaminestheprocessofconvertingdigitalvideobackintoanalogvideoandexplainshowvideoreconstructionrequiresproperfilteringtechniques.Examplesareprovidedtoavoidorminimizemoiréeffectsandpictureartifacts.IntroductionOnceanalogvideoiscapt……