标签: ntsc
相关博文
-
所有元器件不到50个。 手机的一半大小。 两颗芯片完成：一颗数字视频解码（带梳状滤波器），一颗编码芯片（内置SDRAM）。 可以实现真正的彩色制式转换，场频转换。 ///////////////////////////////////////// 2012年6月7日更新： 做了一个20mm x 40mm的超小板。用于一款进口的摄像头，内置这块板进去做PAL输出。（这款摄像头只有NTSC输出）。
-
OMAP3530内部带视频DA，在不使用LCD输出的OMAP3530项目中，可以使能内部DA，用于显示界面，也可以直接用电视机或监视器做显示终端。 下面是需要操作的步骤： 1，设置编译的环境变量 export PATH="/usr/local/arm/arm-2009q1/bin:"$PATH 2，通过菜单配置LINUX内核，使能复合视频输出 make manuconfig: Device Drivers ---Graphics support --- OMAP2/3 Display Subsystem support (EXPERIMENTAL) ---OMAP2_VENC_OUT_TYPE(Use Composite output interface) - --Use Composite output interface 勾选以上路径下Use Composite output interface前的选项，使能复合视频输出。 3，编译内核 make CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm 4，生成uImage make CROSS_COMPILE=arm-none-linux-gnueabi- ARCH=arm uImage 执行后arch/arm/boot目录下会生成uImage文件。将该文件拷贝到MMC卡即可启动。 5，在uboot启动过程中设置环境变量 setenv defaultdisplay tv setenv omapfb.mode tv:pal saveenv 保存环境变量后重新启动，即可得到PAL制视频输出了。类似方式可以设置为NTSC制或S端子输出。
相关资源
-
bandwidthversusvedioresolution……
-
TVP5150TVP5150APBSUltralowPowerNTSC/PAL/SECAMVideoDecoderWithRobustSyncDetectorDataManualSeptember2003HPADigitalAudioVideoSLES087IMPORTANTNOTICETexasInstrumentsIncorporatedanditssubsidiaries(TI)reservetherighttomakecorrections,modifications,enhancements,improvements,andotherchangestoitsproductsandservicesatanytimeandtodiscontinueanyproductorservicewithoutnotice.Customersshouldobtainthelatestrelevantinformationbeforeplacingordersandshouldverifythatsuchinformationiscurrentandcomplete.AllproductsaresoldsubjecttoTI’stermsandconditionsofsalesuppliedatthetimeof……
-
dvd视盘机video&audiotestprocedure．b……
-
Abstract:Inanyon-screenvideodisplaysystemorcharactergenerator,itisdesirabletoprovidesmoothtransitionswhenchangingthedisplayedinformation.Applicationswhichdisplaythetimeanddateneedtobeupdatedbetweenframes,foranunambiguousrecord.TheMAX4455arbitrarygraphicson-screendisplaygeneratoriscapableofachievingthesegoalsbutdesignersneedtoaccountforthetransferoflargeamountsofdatathatcanoccurwhenprogrammingmanypixels.ThisarticleofferswaystomakesurethatyourMAX4455-basedOSDsystemwillhavetheoptimumgraphicsupdaterate.Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsVideoCircuitsKeywords:on-screendisplay,OSD,displaygenerator,videogenerator,NTSC,PAL,PALvideo,graphicsupdaterateSep22,2003APPLICATIONNOTE2156OptimizetheGraphicsUpdateRateonanOSDVideoGraphicsGeneratorAbstract:Inanyon-screenvideodisplaysystemorcharactergenerator,itisdesirabletoprovidesmoothtransitionswhenchangingthedisplayedinformation.Applicationswhichdisplaythetimeanddateneedtobeupdatedbetweenframes,foranunambiguousrecord.TheMAX4455arbitrarygraphicson-screendisplaygeneratoriscapableofachievingthesegoalsbutdesignersneedtoaccountforthetransferoflargeamountsofdatathatcanoccurwhenprogrammingmanypixels.Thisarticleoffer……
-
Abstract:Differentialgainandphase(DGandDP)arecommonvideospecifications.Whatarethey?Whyaretheyusediftheycannotbeseen?Thisapplicationnoteanswersthesequestions,andexplainshowthesespecificationsareappliedtoothernonvideoamplifiers,ADCs,andDACs.Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4294Maxim>Designsupport>Appnotes>AutomaticTestEquipment(ATE)>APP4294Maxim>Designsupport>Appnotes>Automotive>APP4294Keywords:DG,DP,differentialgainphase,videoerror,NTSC,TV,invisibleamplifier,PAL,subcarrier,ADC,DAC,sweet-spot,linear,linearity,Sallen-Key,filter,video,quality,signalintegrityMay23,2011APPLICATIONNOTE4294DifferentialGainandPhase―WhyMeasureIt,ifYouCannotSeeIt?By:BillLaumeister,StrategicApplicationsEngineerAbstract:Differentialgainandphase(DGandDP)arecommonvideospecifications.Whatarethey?Why……
-
摘要：差分增益和相位（DG和DP）是常见的视频规格。它们是什么？为什么使用它们，如果他们不能看到呢？本应用笔记中回答了这些问题，并解释如何适用于其他nonvideo放大器，模数转换器和数模转换器（DAC），这些规范。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4294Maxim>Designsupport>Appnotes>AutomaticTestEquipment(ATE)>APP4294Maxim>Designsupport>Appnotes>Automotive>APP4294Keywords:DG,DP,differentialgainphase,videoerror,NTSC,TV,invisibleamplifier,PAL,subcarrier,ADC,DAC,sweet-spot,linear,linearity,Sallen-Key,filter,video,quality,signalintegrityMay23,2011APPLICATIONNOTE4294DifferentialGainandPhase―WhyMeasureIt,ifYouCannotSeeIt?By:BillLaumeister,StrategicApplicationsEngineerAbstract:Differentialgainandphase(DGandDP)arecommonvideospecifications.Whatarethey?Why……
-
要：差分增益和相位（DG和DP）是常见的视频规格。它们是什么？为什么使用它们，如果他们不能看到呢？本应用笔记中回答了这些问题，并解释如何适用于其他nonvideo放大器，模数转换器和数模转换器（DAC），这些规范。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4294Maxim>Designsupport>Appnotes>AutomaticTestEquipment(ATE)>APP4294Maxim>Designsupport>Appnotes>Automotive>APP4294Keywords:DG,DP,differentialgainphase,videoerror,NTSC,TV,invisibleamplifier,PAL,subcarrier,ADC,DAC,sweet-spot,linear,linearity,Sallen-Key,filter,video,quality,signalintegrityMay23,2011APPLICATIONNOTE4294DifferentialGainandPhase―WhyMeasureIt,ifYouCannotSeeIt?By:BillLaumeister,StrategicApplicationsEngineerAbstract:Differentialgainandphase(DGandDP)arecommonvideospecifications.Whatarethey?Why……
-
摘要：差分增益和相位（DG和DP）是常见的视频规格。它们是什么？为什么使用它们，如果他们不能看到呢？本应用笔记中回答了这些问题，并解释如何适用于其他nonvideo放大器，模数转换器和数模转换器（DAC），这些规范。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4294Maxim>Designsupport>Appnotes>AutomaticTestEquipment(ATE)>APP4294Maxim>Designsupport>Appnotes>Automotive>APP4294Keywords:DG,DP,differentialgainphase,videoerror,NTSC,TV,invisibleamplifier,PAL,subcarrier,ADC,DAC,sweet-spot,linear,linearity,Sallen-Key,filter,video,quality,signalintegrityMay23,2011APPLICATIONNOTE4294DifferentialGainandPhase―WhyMeasureIt,ifYouCannotSeeIt?By:BillLaumeister,StrategicApplicationsEngineerAbstract:Differentialgainandphase(DGandDP)arecommonvideospecifications.Whatarethey?Why……
-
【应用笔记】视频与图像处理设计样例(VideoandImageProcessingExampleDesign)Altera公司的视频与图像处理(VideoandImageProcessing,VIP)设计样例演示了对一个NTSC制式或PAL制式的标准定义视频流和与背景层混合在一起的画中画的动态缩放和裁剪。TheAltera®VideoandImageProcessing(VIP)ExampleDesigndemonstratesdynamicscalingandclippingofastandarddefinitionvideostreamineitherNationalTelevisionSystemCommittee(NTSC)orphasealternationline(PAL)formatandpicture-in-picturemixingwithabackgroundlayer.Thevideostreamisoutputinhighdefinitionresolution(1024×768)overadigitalvideointerface(DVI).TheexampledesigndemonstratesaframeworkforrapiddevelopmentofvideoandimageprocessingsystemsusingtheparameterizableMegaCore®functionsthatareavailableintheVideoandImageProcessingSuite.AvailablefunctionsarelistedinTable1.VideoandImageProcessingExampleDesignJune2011AN-427-9.0IntroductionTheAlteraVideoandImageProcessing(VIP)ExampleDesigndemonstratesdynamicscalingandclippingofastandarddefinitionvideostreamineitherNationalTelevisionSystemCommittee(NTSC)orphasealternationline(PAL)formatandpicture-in-picturemixingwithabackgroundlayer.Thevideostreamisoutputinhighdefinitionresoluti……
-
摘要：MAX4390的运算放大器配置在3杆，低通Sallen-Key滤波器，它提供了一个的-3dB带宽为5.25MHz巴特沃斯响应。该电路可用于过滤复合（CVBS）或S-视频信号在标准清晰度数字电视（SDTV）应用的视频抗锯齿和重建。该电路设计驱动一个75Ω终接，共同在视频应用的总增益为1。Maxim>AppNotes>FILTERCIRCUITS(ANALOG)VIDEOCIRCUITSKeywords:3-pole,butterworth,activefilter,lowpassfilter,video,output,NTSC,PAL,reconstructionfiltering,Dec04,2002operationalamplifier,opampAPPLICATIONNOTE17995MHz,3-Pole,Low-PassFilterplusVideoLineDriverforConsumerVideoApplicationsAbstract:TheMAX4390operationalamplifierconfiguredina3-pole,low-passSallen-KeyfilterthatprovidesaButterworthresponsewithabandwidthof-3dBat5.25MHz.Thiscircuitcanbeusedforvideoanti-aliasingandreconstructionfilteringforcomposite(CVBS)orS-VideosignalsinstandarddefinitiondigitalTV(SDTV)applications.Thecircuitisdesignedtodrivea75termination,commoninvideoapplications,withanoverallgainof1.TheSall……
-
摘要：MAX4450运算放大器在3杆，低通Sallen-Key滤波器配置提供了一个Butterworth响应-3dB带宽为5.25MHz。该电路可用于过滤复合（CVBS）或S-视频信号在标准清晰度数字电视（SDTV）应用的视频抗锯齿和重建。该电路设计驱动一个75Ω终接，共同在视频应用的总增益为1。Maxim>AppNotes>FILTERCIRCUITS(ANALOG)VIDEOCIRCUITSKeywords:3-pole,butterworth,activefilter,lowpassfilter,video,output,NTSC,PAL,reconstructionfiltering,Mar28,2002operationalamplifier,opamp,opampsAPPLICATIONNOTE1028SDTVReconstructionFilterwithAdjustableGroupDelayAbstract:TheMAX4450operationalamplifierconfiguredina3-pole,low-passSallen-KeyfilterprovidesaButterworthresponsewithabandwidthof-3dBat5.25MHz.Thiscircuitcanbeusedforvideoanti-aliasingandreconstructionfilteringforcomposite(CVBS)orS-VideosignalsinstandarddefinitiondigitalTV(SDTV)applications.Thecircuitisdesignedtodrivea75termination,commoninvideoapplications,withanoverallgainof1.Thisapplicationnotedescribesa5……
-
嵌入式视频处理基本原理(最新豪华电子书)英文版www.eetchina.comFundamentalsofEmbeddedVideoProcessingByDavidKatzandRickGentile,AnalogDevices,Inc.Copyright2008EEtimes-Chinawww.eetchina.comFundamentalsofEmbeddedVideoProcessing(Part1ofa5-partseries)ByDavidKatzandRickGentile,AnalogDevices,Inc.Asconsumers,we’reintima……
-
sdtvreconstructionfliterwithadjustablegroupdelay……
-
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……
