Watermarking schemes evaluation Abstract鈥擠igital watermarking has been presented as a solution to copy protection of multimedia objects and dozens of schemes and algorithms have been proposed. Two main problems seriously darken the future of this technology though. Firstly, the large number of attacks and weaknesses which appear as fast as new algorithms are proposed, emphasizes the limits of this technology and in particu-lar the fact that it may not match users expectations. Secondly, the requirements, tools and methodologies to assess the current technologies are almost non-existent. The lack of benchmarking of current algorithms is bla-tant. This confuses rights holders as well as software and hardware manufacturers and prevents them from using the solution appropriate to their needs. Indeed basing long-lived protection schemes on badly tested watermarking technology does not make sense.
标签： Watermarking watermarking evaluation presented
上传时间： 2013-12-04
上传用户：thinode
This application note describes the design and implementation of a usb mass storage devic using a secure digital card,which should prove useful to developers of usb mass storage solution.This application may be used as a stand-alone MSD or as a Secure Digital/multimedia Card (SD/MMC) reader/ writer interface.
标签： implementation application describes storage
上传时间： 2017-06-24
上传用户：weiwolkt
omap850 datasheet This technical reference manual provides technical information on the OMAP850 multimedia processor.
标签： technical information 850 datasheet
上传时间： 2017-07-25
上传用户：siguazgb
[开源 绿色软件] [运行环境 Windows XP/7/8/10] [语言 简体/繁體/English/Unicode] A cool music player. Powered by Bass and BassVis. 极简本地音乐播放器，透明、纯文本界面。支持轻媒体库、歌词、可视化。最小化到托盘，占用资源少，适合边听音乐边工作。 应网友要求，加入了Tag编辑、自动切换列表、播放队列、鼠标手势、均衡器、音频设备选择、全局音量滚轮（托盘区域）、字体设置、极简模式、鼠标穿透、嵌入桌面、简单布局等功能。 homepage> mcool.appinn.me ==================================================== 音频格式APE、FLAC、WavPack、MP3、OGG、TTA、TAK、Musepack、AAC、AC3、WMA、Wav、CD、ALAC、Aiff、MOD、CUE ==================================================== 更新历史: 3336 -2016.3.25 点睛之笔：任意布局（追上foobar2000）。Arbitrary layout (all in one). 3330 -2016.3.10 一体布局之比例调节（初具foobar2000风貌）。Ratio adjust (all in one). 3308 -2015.11.28 歌词微调（在选项>常规>鼠标手势里设置）。Adds function of lyrics tuning. 3306 -2015.11.15 电台模式（整点时切换歌曲或列表，并非在线音乐），以及多声卡支持。Adds radio mode, and multi sound card support. 3300 -2015.10.15 完善细节，修复切歌卡住bug。完美版。Fixes some bugs. 3280 -2015.8.1 简单布局功能。Layout (all in one) function. 3260 -2015.6.1 Win10模式。Win10 mode. 3252 -2015.5.10 任务栏进度条。Taskbar progress display. 3236 -2015.4.10 点睛之笔：透明度调节。Adds function of transparency tuning. 3232 -2015.3.25 自定义软件名（请在mcool.ini中手动修改）。Adds function of customizing app name. 3230 -2015.3.12 Airplay复刻界面。Airplay interface copy. 3218 -2015.1.20 桌面歌词。Desktop lyrics. 3216 -2015.1.12 一体化界面（学习Foobar2000和豆瓣FM）。All in one interface. 3212 -2015.1.6 新增Winamp音效插件支持（学习千千静听），以及滚轮穿透功能（学习Airplay3）。Adds Winamp DSP plugins support, and adds function of wheel transparent. Winamp音效插件下载：http://uploadgeneration.info/Winamp/www.winamp.com/plugins/dsp-effect/5/top-rated.html 3210 -2014.12.28 重要更新：本地音量调节、自定义鼠标键/手势。Adds local volume control, and adds fuction of customizing mouse control / gesture. 3208 -2014.11.25 简化右键菜单，常规项目移到选项窗口。Simplifies the popup menu, moves the general items to option window. 3206 -2014.11.22 新增文本对齐选项，重新设计导航按钮。Adds option of text alignment, and redesigns the buttons of playback. 3202 -2014.11.10 新增播放记忆、片段循环（Hotkey: Ctrl+1/2）和贴边隐藏功能。Adds functions of playback memory, AB repeat and screen side hide. 3200 -2014.11.5 新增无界面选项（先去掉托盘图标，然后Ctrl+Alt+W隐藏界面，Ctrl+Alt+X关闭）。Adds option of no interface. 3191 -2014.8.26 嵌入桌面。Pins to desktop. 3190 -2014.8.19 音乐管理第一步：列表分组。Playlists grouping. 3186 -2014.8.10 基于列表的分级系统（Hotkey:0..5）。Rating system based on playlist. 3181 -2014.8.1 启用新图标（由虹吸墨作者BGLL友情制作）。Uses the new icon. 3180 -2014.7.22 新增Win7任务栏特效。Adds windows 7 taskbar effect. 3166 -2014.6.29 重要更新：自动下载专辑封面（源于歌词迷）。Downloads album covers from geci.me. 3160 -2014.6.1 重要更新：新增极简模式，以及OGG/Opus内置封面显示功能。Adds minimalist mode, and adds function of displaying cover embedded in OGG/Opus. 3152 -2014.5.18 添加托盘右键菜单，新增MP4/M4A(ALAC)内置封面显示功能。Adds systray popup menu, and adds function of displaying cover embedded in MP4/M4A(ALAC). 3151 -2014.5.1 重新设计可视化效果，新增示波器效果。Redesigns visual effects, and adds oscilloscope effect. 3150 -2014.4.20 采用歌词迷API下载歌词。Downloads lyrics from geci.me. 3136 -2014.3.30 加入可选的按钮，以及鼠标穿透功能。Adds function of transparent window. 3132 -2014.3.6 简化界面，向Foobar2K看齐；增加正在播放面板。Simplifies the interface, and adds now playing panel. 3130 -2014.2.26 重要更新：按照专辑分组。Grouping by album. 3120 -2014.2.18 优化字体渲染（Windows7/8下）。Optimizes font rendering in Windows 7/8. 3110 -2014.1.26 点睛之笔：自定义字体颜色。Adds function of customizing font color. 3108 -2013.11.16 Last.fm同步功能（请到主页下载插件）。Last.fm scrobbler support. 3106 -2013.11.8 可回溯的随机播放（学习Airplay 2）。Random playback can be traced back. 3103 -2013.10.12 优化右键菜单。Optimizes popup menu. 3102 -2013.9.30 修改滚动条样式，增加音频缓冲选项。Modifies style of scroll bar, and adds option of audio buffer length. 3100 -2013.9.10 无边框设计；迷你模式也可以不置顶（Hotkey:T）。Borderless designs. 3086 -2013.8.20 增加歌词面板功能。Adds function of lyrics panel. 3082 -2013.8.08 增加在可视化界面显示歌词功能。Adds function of displaying lyrics on visual interface. 3080 -2013.8.01 新增设置字体功能，恢复简单的自动关机功能。Adds function of setting font, and re-adds simple function of auto shutdown. 3060 -2013.6.26 修复在迷你模式停止响应的Bug，去掉自动关机、歌词调整功能。Fixes bug of stop responding in mini mode, and removes functions of auto shutdown and lyrics trimming. 3050 -2013.5.23 增加手势功能。Adds gesture function. 3030 -2013.3.10 增加Aero磨砂玻璃效果[如需源码请联系我]，XP/Win7/8无差别显示，按Insert键开启。Adds aero glass effect. 3020 -2013.2.23 增加简易Tag编辑功能（选中并单击即可，相当于资源管理器中的重命名，按照[歌手 - 歌名][专辑]格式进行编辑）。Adds function of editing audio tags (select and click, edit with [artist - title][album] format). 3010 -2013.1.23 应网友要求，加入读取内嵌CUE、歌词及专辑封面功能。Adds function of reading CUE, LRC and album cover built in media. 3002 -2012.11.03 无按钮设计；微调进度条尺寸。Buttonless design; modifies the size of the progress bar. 3001 -2012.10.15 重要改进，界面即按钮：单击 - 播放/暂停，按住 - 前进。Important update, the interface is a button: Click - Play/Pause, Hold Down - Next. 3000 -2012.9.28 增加Win8模式。Adds Win8 mode option. 2982 -2012.8.26 在Win8下使用微软雅黑字体。Uses Microsoft YaHei font in Windows 8 CHS. 2981 -2012.8.20 视频以插件提供（请到主页下载），增加单曲循环功能。Adds function of repeat track. 2980 -2012.7.26 简化代码，去掉视频和MIDI支持。Removes the video and MIDI support. 2970 -2012.7.20 增加媒体信息显示功能。Adds function of displaying media info. 2960 -2012.6.28 增加专辑封面显示功能（Hotkey:Ins）。Adds function of displaying album cover. 2956 -2012.6.01 再次简化界面。Simplifies the interface again. 2952 -2012.4.28 增加音频设备选择功能：DS、ASIO、WASAPI。Adds function of selecting playback device. 2950 -2012.3.30 *增加滚轮调节音量功能（在托盘，中键静音）和媒体键支持。Adds function of setting volume by mouse wheel (over systray, middle click to mute), and adds multimedia keys support. 2936 -2012.3.17 微调界面，修复物理删除失效的BUG。Fine-tunes the interface, and restores the physical delete function. 2930 -2012.2.27 增加TAK格式支持。Adds TAK format support. 2923 -2012.2.12 紧急修复上一版出现的字体模糊BUG（Vista/Win7下），增加在任务栏显/隐图标功能（Ctrl+T）。Fixes font vague bug for Vista/Win7, and adds showing/hiding icon on taskbar function. 2920 -2012.2.08 微调界面，优化CPU占用（启用背景图片时）。Fine-tunes the interface, and optimizes CPU utilization (while enable background image). 2912 -2012.1.12 增加播放队列功能。Adds playback queue function. 2910 -2011.12.25 改进迷你模式，增加查找功能。Improves mini mode, and adds find function. *注：此功能对杀毒软件过敏，开启方法：按F1进入选项，勾选全局快捷键。The feature is allergic to the anti-virus software.
上传时间： 2016-06-10
上传用户：fanghua
PRODUCT DESCRIPTION The AD810 is a composite and HDTV compatible, current feedback, video operational amplifier, ideal for use in systems such as multimedia, digital tape recorders and video cameras. The 0.1 dB flatness specification at bandwidth of 30 MHz (G = +2) and the differential gain and phase of 0.02% and 0.04° (NTSC) make the AD810 ideal for any broadcast quality video system. All these specifications are under load conditions of 150 Ω (one 75 Ω back terminated cable). The AD810 is ideal for power sensitive applications such as video cameras, offering a low power supply current of 8.0 mA max. The disable feature reduces the power supply current to only 2.1 mA, while the amplifier is not in use, to conserve power. Furthermore the AD810 is specified over a power supply range of ±5 V to ±15 V.
上传时间： 2020-04-19
上传用户：su1254
The new digital radio system DAB (Digital Audio Broadcasting, nowadays often called Digital Radio) is a very innovative and universal multimedia broadcast system which will replace the existing AM and FM audio broadcast services in many parts of the world in the future. It was developed in the 1990s by the Eureka 147/DAB project. DAB is very well suited for mobile reception and provides very high robustness against multipath reception. It allows use of single frequency networks (SFNs) for high frequency efficiency.
标签： Broadcasting Principles Digital Audio
上传时间： 2020-05-27
上传用户：shancjb
The wireless market has experienced a phenomenal growth since the first second- generation (2G) digital cellular networks, based on global system for mobile communications (GSM) technology, were introduced in the early 1990s. Since then, GSM has become the dominant global 2G radio access standard. Almost 80% of today’s new subscriptions take place in one of the more than 460 cellular networks that use GSM technology. This growth has taken place simultaneously with the large experienced expansion of access to the Internet and its related multimedia services.
标签： Performance Evolution GPRS EDGE GSM and
上传时间： 2020-05-27
上传用户：shancjb
This preface is somewhat different from prefaces found in similar books because it does not focus so much on the content of the book.We have instead chosen to write a few words about our own experiences from working with telephony services over Internet Protocol (IP). Here are our stories.
标签： multimedia Telephony Cellular Systems over IMS
上传时间： 2020-05-27
上传用户：shancjb
The third generation (3G) mobile communication system is the next big thing in the world of mobile telecommunications. The first generation included analog mobile phones [e.g., Total Access Communications Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile communications (GSM), personal digital cellular (PDC), and digital AMPS (D-AMPS)]. The 3G will bring digital multimedia handsets with high data transmission rates, capable of providing much more than basic voice calls.
标签： Communications Introduction Mobile 3G to
上传时间： 2020-05-27
上传用户：shancjb
This book is exclusively dedicated to WiMAX. The focus of the book is on the applications of WiMAX networks, with delivery of multimedia content to wireless and mobile devices being the area of greatest atten- tion. WiMAX has crossed a number of major milestones in the recent past.
标签： Mobile Broadcasting with WiMAX Principles
上传时间： 2020-05-30
上传用户：shancjb
