数字数据

Digital watermarking is an effective technology and solution to digital product copyright protection and data security.

数字水印是一种有效的数字产品版权保护和数据安全维护技术。

Because the signal now resides in the digital domain, you can apply a lowpass digital filter to attenuate the higher frequency noise and a decimator filter to slow down the out

因为信号位于数字域，可以采用低通数字滤波器削弱高频率噪声，采用抽取滤波器减小输出数据的速度。

Because the signal now resides in the digital domain, you can apply a lowpass digital filter to attenuate the higher frequency noise and a decimator filter to slow down the output-data rate.

因为信号位于数字域，可以采用低通数字滤波器削弱高频率噪声，采用抽取滤波器减小输出数据的速度。

Because the signal now resides in the digital domain, you can apply a lowpass digital filter to attenuate the higher frequency noise and a decimator filter to slow down the out put-data rate.

因为信号位于数字域，可以采用低通数字滤波器削弱高频率噪声，采用抽取滤波器减小输出数据的速度。

And due to the nature of the data acquisition, three data acquisition circuit board are adopted. They are voltage to digit data converting circuit board, current to digit data converting circuit board and digit data input/output circuit board. These circuit boards are used to acquire the main running parameter of the multifunctional experimentation equipment and to control the output of alarm message.The monitor and control program is developed on Delphi5.0 which is an excellent product of Borland Corp.

数据监控系统的硬件以一台工业控制PC机为核心，并根据采集信号的性质配置了电压-数字量转换板、电流-数字量转换板及开关量输入／输出板，对实验台的主要运行参数进行采集并进行报警控制；监控系统的软件以BORLAND公司的Delphi5.0作为开发平台，采用了面向对象的设计方法，运用了多线程、数据库等技术，做到了界面美观、操作方便。

A digital video cassette recorder 4-1 connected to the IEEE1394 high-speed serial bus 11-1 extracts digital video data through the processes opposite to those carried out in the transmitter side.

与IEEE1394高速串行总线（11―1）连接的数字录像机（4―1），进行与发送侧相反的处理，并提取数字视频数据。

As an important technology on data authentication, digital signature can be used to identify the instance of denying, forgery, tamper and imitation in today's communication network. It can provide the data integrity, figure authentication, and also prevent from disavowal of a sender during data transmission.

在现代的数字通信网络中，数字签名作为数据认证技术中的一项关键技术，可以解决否认、伪造、篡改及冒充问题，用来保证信息传输过程中的完整性，提供信息发送者的身份认证和不可抵赖性。

Moreover regardless of adopts what kind of existence the existent solution, digit imaging system's latitude must be a certain that cannot be intervened artificially value on the physical level after leaving factory. Some digital cameras are known as alterable latitude, but they change camera's latitude by past treatment through DSP. So users cannot change latitude, light-shade transition or color transition as film camera just by replacing film's type. Now the civil camera's minimum ISO is 50. This value is discommodity for users to photo by the long exposure or other similar mode.

另外无论采取何种目前存在的解决方案，由于目前具有动态范围可调功能的数字照相机都是针对CCD所采集的数据进行再处理，因此，数字成像系统物理层上的宽容度动态范围始终是一个人工不可干预的固定值，这样的话，用户无法像胶片一样仅仅改变胶片型号便能实现宽容度和色彩过渡的改变以方便画面的创意，而且目前民用照相机感光度的最低值一般为ISO50，这个值在进行类似长曝光等方式的创意摄影时仍存在较大的不便之处。

So it is important to solve problems of interchangeability of file format and security.

所以，解决数字视音频的数据格式通用性和安全性问题在数字电影中起着至关重要的作用。

Our research works are using dummy instrument techniques and digital PID control arithmetic to complete digital electrostatic feedback system and data managing works of LCR-ET model gravimeter.

本项研究工作是利用虚拟仪器技术和数字PID控制算法，实现LCR-ET重力仪的数字静电反馈系统和数据管理工作。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。