conditional access

基本解释

The main challenge of the conditional access system is normally to prevent commercial piracy.
一般来讲，条件接入系统的主要问题在于防止处于商业目的的盗用。
The user may check information of E-mail, smart card and conditional access by this operation.
用户可以根据此项操作来查看电子邮件、智能卡、条件接收等信息。
blog.sina.com.cn
Combining with the practice and application on conditional access of digital TV, the technology application in conditional access on digital TV is analyzed.
重点结合数字电视条件接收系统工作实践，对条件接收技术在数字电视方面的应用作了分析和研究。

And a new standard called D-CAS for downloadable conditional access, which Samsung was first to sign up with, will let any properly configured TV, PC or consumer electronics device link directly to local cable to grab services.
FORBES
In addition, to show how local TV broadcasters can now offer more than just linear TV channels, LG Electronics is showing its first Android-enabled smartphone prototype equipped with Mobile Digital TV (MDTV) reception, which offers conditional access functionality for future subscription broadcasts and the capability of receiving "non-real time" data such as electronic coupons.
ENGADGET: LG's glassesless 3D Mobile DTV eyes on (update: video)
Washington wants to hang on to its discretionary system of duty-free access for poor countries, which is conditional on their human-rights record.
ECONOMIST: Trade and development

the encryption of television programme transmissions so that only authorized subscribers with suitable decoding apparatus may have access to them

条件接收
CA(Conditional Access) is a future function and we plan to use our own CA system.
CA(条件接收)功能为本系统预留实现的功能，初步计划使用自行设计的CA系统。
计算机科学技术
条件接收
条件式存取