英语DVD图形字幕的提取与转换

将英语DVD的图形字幕提取出来并将其转换成可编辑打印的Word文档,是个比较复杂的过程。首先要用VobSubRipperWizardV1．0．0．6英文绿色版或VobSubConfigure将英语DVD的sub图形字幕提取出来,接着用Subresync或subRip1．50Beta4将其转换成srt英文字幕,或者用IdxSubOcr1．08或SubOCR0．98汉化版将其转换成srt中文字幕,再用LRC歌词文件转换器3．0将含时河轴的srt字幕文件转换成无时间轴的txt文本文件,最后用Word进行编辑和打印。     

PREPARATION OF BaTiO3 FILMS FOR MLCCS BY DIRECT VAPOR DEPOSITION

ABSTRACT

BaTiO₃ films were deposited by the direct vapor deposition (DVD) technique to prepare thin dielectric layers for multilayer ceramic chip capacitors (MLCCs). The BaTiO₃ films were successfully prepared by co-evaporation of the BaTiO₃ ceramic and Ti metal source. The films deposited at room temperature and 600°C were amorphous and crystalline phases, respectively. The intensity of (110) and (111) peaks increased as Ba/Ti ratios were close to stoichiometric composition. BaTiO₃ films deposited with e-beam power of 700 W showed the deposition rate of 33 nm/min. The dielectric constant and dissipation factor of BaTiO₃ films measured at 1 kHz were 150～ 180 and 2～ 5%, respectively. The capacitance decreased with increasing the temperature and varied only between 787pF and 752pF in the temperature range 15～ 125°C.     

具有图形化界面的车载DVD影音系统设计

介绍了一种新型的具有图形化界面的车载DVD影音系统,给出了DVD影音系统的主机模块和显示屏模块的设计方案,并介绍了基于YGV629的DVD视频画面和图形化界面的叠加原理,最后给出了系统的软件实现方法。该设计方案实现的车载影音系统操作界面友好、灵活性强,只需修改相应的图形库,即可应用于需要视频图形叠加的其他领域。     

基于数字水印的DVD版权保护技术

介绍两种基于数字水印的DVD版权保护技术建议，给出各自相应的水印算法和复制控制过程。     

Effect of additional element and heat treating temperature on micro-structure and mechanical behavior of Ag alloy thin film

For Ag alloy film used for the storage media, it is required to have heat-resistance, anti-constant temperature and anti-constant humidity characteristics, corrosion resistance, while high reflectivity over Al is maintained. An Ag alloy thin film （additive element Pd, Cu, P） was created on glass substrates, and various heat treatment was conducted. Then, fine structure was observed on this thin film using AFM, and fine structure evaluation of the inside was carried out by the in-plane diffractometry and X-ray diffraetometry, and in addition, residual stress analysis was carried out. These results were compared and were examined, and fine structure and physical property in a metallic thin film were evaluated, and usefulness of evaluation method was verified.     

DVD程序流至DVB传送流的一种转换方法

音视频模拟信号的DVD程序流至DVB传送流的转换方法不可避免地会降低转换后的节目质量.在分析DVD和DVB码流标准定义基础上,提出了一种基于音视频数字基本流的无损转换方法,并开发完成相应的软件工具包,用以实现音视频转换、系统信息生成、时间信息校正和复用等转换过程.对转换后生成的传送流的系统信息和时间信息进行了静态分析,并在数字视频广播系统平台上进行了应用测试,测试结果证明该转换方法正确,转换后的节目可用作DVB的入网节目源.     

光学头中单片光电集成硅基PDIC的设计

针对应用于DVD光学头的关键部件PDIC,设计了一种芯片面积小、输出失调电压低的单片集成的硅基PDIC.芯片采用CSMC的0.5 μm BCD工艺,集成了p-i-n探测器与前置放大电路.重点介绍了p-i-n光电探测器及前置放大电路的设计思想.仿真结果表明,用于光电检测的p-i-n光电探测器在650 nm光照下响应度达0.2 A/W,互阻放大器的-3 dB带宽达到94 MHz,跨阻增益达150 kΩ.可以满足DVD系统的性能要求.     

容量4.7GB DVD-RAM驱动器的开发

开发了 DVD－ RAM驱动器。其容量与 DVD－ ROM(Video)相同 (4.7 GB),记录和读出时的传输速率为 22.16 Mbps。该驱动器通过新开发的单镜集成化记录用光头、光道中心控制 /倾斜控制及加强的记录系统学习功能,实现了 4.7 GB的高密度记录所要求的功能,如高精度控制及兼容性、适应盘片各种变化的稳定的记录性能。而且,该驱动器还兼容 2.6 GB DVD－ RAM盘的记录 /读出、 DVD－ ROM和 CD－ ROM盘的读出。     

DVD视盘机电磁辐射干扰的测试分析及对策

介绍了DVD视盘机电磁辐射产生的机理和原因，通过测试数据的比较分析对辐射源及耦合路径进行定位，并利用改变解码PCB板的接地方式、改善不同模块间互连线缆的空间分布位置、使用磁珠及电容对时钟／电源走线进行滤波处理、强化机器外壳的屏蔽效能等方法对辐射进行抑制。改进后的产品经测试符合FCC Part15 Class B的要求，并有6dB以上的裕量，     

DVD处理器ES60X8在汽车音响系统中的设计

本文简要了介绍ES60X8系列DVD处理器，给出了以ES60X8为基础的车载DVD音响系统结构，各模块间的接口设计；着重介绍了外接SDRAM的电子抗震设计和PCB抗干扰设计。