研究了一種采用FPGA將高清數(shù)字電視信號(hào)轉(zhuǎn)換為標(biāo)清數(shù)字電視信號(hào)的方法,利用重采樣等技術(shù)降低了圖像中每行的有效像素和垂直行,完成了HD-SDI到SD-SDI的下變換。設(shè)計(jì)實(shí)現(xiàn)簡單,目前已運(yùn)用于實(shí)際工程當(dāng)中。
上傳時(shí)間: 2014-11-29
上傳用戶:mickey008
研究了一種采用FPGA將高清數(shù)字電視信號(hào)轉(zhuǎn)換為標(biāo)清數(shù)字電視信號(hào)的方法,利用重采樣等技術(shù)降低了圖像中每行的有效像素和垂直行,完成了HD-SDI到SD-SDI的下變換。設(shè)計(jì)實(shí)現(xiàn)簡單,目前已運(yùn)用于實(shí)際工程當(dāng)中。
上傳時(shí)間: 2013-10-23
上傳用戶:mikesering
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially installed in studios to carry analog video. Next, HD-SDI wasto support high-definition video. Finally, dual link HD-SDI and 3G-SDIdoubled the bandwidth of HD-SDI to support 1080p (50 Hz and 60 Hz) and other videoformats requiring more bandwidth than HD-SDI provides.
上傳時(shí)間: 2013-10-08
上傳用戶:yjj631
The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, Gigabit Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts
標(biāo)簽: Transceiver Virtex Wizar GTP
上傳時(shí)間: 2013-10-23
上傳用戶:leyesome
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially installed in studios to carry analog video. Next, HD-SDI wasto support high-definition video. Finally, dual link HD-SDI and 3G-SDIdoubled the bandwidth of HD-SDI to support 1080p (50 Hz and 60 Hz) and other videoformats requiring more bandwidth than HD-SDI provides.
上傳時(shí)間: 2013-12-08
上傳用戶:liansi
The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, Gigabit Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts
標(biāo)簽: Transceiver Virtex Wizar GTP
上傳時(shí)間: 2013-10-20
上傳用戶:dave520l
串行數(shù)字接口SDI是目前使用最廣泛的數(shù)字視頻接口。它是遵循SMPTE-259M和EBtJ-Tech-3267標(biāo)準(zhǔn)制定的,己經(jīng)被世界上眾多數(shù)字視頻設(shè)備生產(chǎn)廠家普遍采納并作為標(biāo)準(zhǔn)視頻接口,主要用在非線性編輯系統(tǒng)、視頻服務(wù)器、虛擬演播室以及數(shù)字切換矩陣和數(shù)字光端機(jī)等場合。 以往的SDI接口在實(shí)現(xiàn)方法上有成本高、靈活性低等缺點(diǎn),針對(duì)這些不足,本文在研究串行數(shù)字接口工作原理的基礎(chǔ)上,提出了一種基于FPGA的標(biāo)清串行數(shù)字接口(SD-SDI)的設(shè)計(jì)方案,并使用SOPC Builder構(gòu)成一個(gè)Nios II處理器系統(tǒng),將SDI接口以IP核形式嵌入到FPGA內(nèi)部,從而提高系統(tǒng)的集成度,使之具有視頻數(shù)據(jù)處理速度快、實(shí)時(shí)性強(qiáng)、性價(jià)比高的特點(diǎn)。具體研究內(nèi)容包括: 1.在分析SDI接口的硬件結(jié)構(gòu)和工作原理的基礎(chǔ)上,提出了串行數(shù)字接口的嵌入式系統(tǒng)設(shè)計(jì)方法,完成了SDI接口卡的FPGA芯片內(nèi)部配置以及驅(qū)動(dòng)電路、均衡電路、電源電路等硬件電路設(shè)計(jì)。 2.采用軟邏輯方法實(shí)現(xiàn)SDI接口的傳輸功能,進(jìn)行了具體的模塊化設(shè)計(jì)與仿真。 3.引入Nios II嵌入式軟核處理器對(duì)數(shù)據(jù)進(jìn)行處理,設(shè)計(jì)了視頻圖像數(shù)據(jù)的采集程序。 該傳輸系統(tǒng)以Altera公司的Cyclone II EP2C35F672C8為核心芯片,通過發(fā)送和接收電路的共同作用,能夠完成標(biāo)清數(shù)字視頻信號(hào)的傳輸,初步確立了以SDI接口為數(shù)據(jù)源的視頻信號(hào)傳輸系統(tǒng)的整體模式和框架。
上傳時(shí)間: 2013-07-31
上傳用戶:zttztt2005
串行數(shù)字接口SDI是目前使用最廣泛的數(shù)字視頻接口。它是遵循SMPTE-259M和EBtJ-Tech-3267標(biāo)準(zhǔn)制定的,己經(jīng)被世界上眾多數(shù)字視頻設(shè)備生產(chǎn)廠家普遍采納并作為標(biāo)準(zhǔn)視頻接口,主要用在非線性編輯系統(tǒng)、視頻服務(wù)器、虛擬演播室以及數(shù)字切換矩陣和數(shù)字光端機(jī)等場合。 以往的SDI接口在實(shí)現(xiàn)方法上有成本高、靈活性低等缺點(diǎn),針對(duì)這些不足,本文在研究串行數(shù)字接口工作原理的基礎(chǔ)上,提出了一種基于FPGA的標(biāo)清串行數(shù)字接口(SD-SDI)的設(shè)計(jì)方案,并使用SOPC Builder構(gòu)成一個(gè)Nios II處理器系統(tǒng),將SDI接口以IP核形式嵌入到FPGA內(nèi)部,從而提高系統(tǒng)的集成度,使之具有視頻數(shù)據(jù)處理速度快、實(shí)時(shí)性強(qiáng)、性價(jià)比高的特點(diǎn)。具體研究內(nèi)容包括: 1.在分析SDI接口的硬件結(jié)構(gòu)和工作原理的基礎(chǔ)上,提出了串行數(shù)字接口的嵌入式系統(tǒng)設(shè)計(jì)方法,完成了SDI接口卡的FPGA芯片內(nèi)部配置以及驅(qū)動(dòng)電路、均衡電路、電源電路等硬件電路設(shè)計(jì)。 2.采用軟邏輯方法實(shí)現(xiàn)SDI接口的傳輸功能,進(jìn)行了具體的模塊化設(shè)計(jì)與仿真。 3.引入Nios II嵌入式軟核處理器對(duì)數(shù)據(jù)進(jìn)行處理,設(shè)計(jì)了視頻圖像數(shù)據(jù)的采集程序。 該傳輸系統(tǒng)以Altera公司的Cyclone II EP2C35F672C8為核心芯片,通過發(fā)送和接收電路的共同作用,能夠完成標(biāo)清數(shù)字視頻信號(hào)的傳輸,初步確立了以SDI接口為數(shù)據(jù)源的視頻信號(hào)傳輸系統(tǒng)的整體模式和框架。
上傳時(shí)間: 2013-04-24
上傳用戶:標(biāo)點(diǎn)符號(hào)
HTC Desire HD A9191,G10使用說明書
上傳時(shí)間: 2013-11-20
上傳用戶:ytulpx
HTC Desire HD A9191,G10使用說明書
上傳時(shí)間: 2013-12-26
上傳用戶:eastimage
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