数字传输

In this case, the image is generated through a video digitizer and compressed before transmission. Methods such as JPEG or MPEG, described in Chapter 6, are used to downsize the image. The reduction of image size depends on the compression method and compression rate.

这种方法在传输前先对数字图像进行压缩，一般使用的压缩方法有JPEG和MPEG，压缩后图像的大小取决于选用的压缩方法和压缩时选择的参数。

Testing system's stability by transmitting digital video signal .

对系统的稳定性作了传输数字视频信号的测试实验。

Code Division Multiple Access: a digital wireless telephony transmission technique.

分多路访问：一种数字无线电话传输技术。

R8 w 1. Time Division Multiple Access a digital wireless telephony transmission technique.

时分多址：一种数字无线电话传输技术。

Zarlink Semiconductor, formerly Mitel Corporation, is specialized in wired, wireless and optical connectivity market and ultra low power medical applications. Its product portfolio encompasses TDM and IP switching, convergence, network timing and transmission, optical communications, telephony components, wireless, broadband digital TV, RF tuners and demodulators for set-top boxes, and medical ICs for implantable, audiological, and portable monitoring applications .

Zarlink Semiconductor（前身为Mitel Corporation）在有线、无线和光连通领域以及超低功耗医疗应用方面一直处于领先地位，其产品主要包括TDM和IP交换、会聚、网络定时和传输、光通信、电话设备、无线应用、宽带数字电视、射频调谐器、机顶盒解调器以及各种用于植入、声波定位和便携监控的医疗芯片。

The watermark can be detected with zero error probability even if the quality of watermarked image is as poor as 26 dB in PSNR after corrupted by additive Gaussian noise.

传统的加密系统在数据传输过程中虽有保护作用，但数据一旦被接收并解密，其保护作用也随着消失。因此只能满足有限的要求[1，2 ] 。作为数字媒体版权保护的有效手段[3 ，4 ] ，数

Arcos Technologies Ltd. develops and markets next generation solutions that enable cost effective and high-performance of digital multimedia transmission.

Arcos技术有限公司开发和销售的下一代解决方案，使数字多媒体的传输实现低成本高性能。

Arcos provides a variety of powerful and cost effective transmission units that enables, inputs in real time or off-line stored media, and creates a DVB/ATSC compliant protocol on QPSK/QAM RF output that supports HDTV and SDTV broadcasting standards.

Arcos提供了多种强大的低成本高效益的传输单元，能够输入实时或离线储存的媒体，并创造了一个遵守DVB/ATSC协议的QPSK/QAM RF输出，支持高清晰度电视和标准清晰度数字电视的广播标准。

Based on the widely-used GPRS/GSM network,the combination of temperature measuring technology and GPRS/GSM network wireless transmission would realize the extending services of remote control,such as attemperation.

本文介绍一种基于数字温度传感器芯片DS18B20、以AT89S52单片机为核心、3位7段LED显示、串行通信、GPRS/GSM无线传输模块为主体的网络化温度检测系统的设计方案。

This situation can occur in a large system where analog and digital signals are cabled together.

这种情况常见于模拟信号和数字信号用同一根电缆传输的场合。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。