数字电视100问（Digital TV 100 questions）.doc

数字电视100问（Digital TV 100 questions） Digital TV 100 ask.Txt, Im an angel. I cant go back to heaven because of weight. Pretend to be someone else, I have to pretend to be experienced. She is like hanging QQ, coaxing her for 2 hours every day, and soon she will be able to catch the sun. The following is a list of 100 questions. Welcome to the experts and operators to download and read. I. development history of digital TV 1, DVB digital TV from when to start? 2, what other digital television technology standards and mutual relations are there in the world? 3, when did Chinas digital TV begin? 4, is digital TV technology an open technology? Two, digital TV conditional access system CAS common sense 5, what is the digital TV conditional access system? 6, mobile phone card separation and digital TV machine card separation what is the difference? 7, why not similar card scheme of digital television card separation scheme of Telecom ideal in practice? 8, why is the computer card separation digital TV integration difficult to scale applications? 9, why the separation of DTV hardware and software is the ultimate goal of separation of machines and cards? 10, why TV operators to buy smart card CA after the emergence of dependence on the CA company? 11, why is the private smart card CA standard a major obstacle to the separation of hardware and software? 12, after the separation of hardware and software, is not sure not to use smart cards? 13, how to trust the separation of hardware and software platform of digital TV open? The separation of hardware and software platform of digital TV 14, longtaixin what are the requirements on the chip suppliers? 15, Yasunobu why give up the digital set-top box business focus on digital TV software? 16, why is separation of hardware and software more suitable for the production of one machine? 17, why the separation of digital TV software and hardware, operators can grasp the initiative of CA? 18, how does the separation of software and hardwar