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IPTV
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《电视技术》 北大核心 2009年第6期57-58,共2页
电信启动新一轮IPTV终端选型测试工作 中国电信2009年IPTV标准化选型测试工作已在近日启动,同时此次选型测试工作也是为中国电信新一轮的IPTV终端集采工作做前期准备。
关键词 电信启动 IPTV 终端选型 终端集采工作
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A MEMS stronglink with multi-try function used for PC startup in authentication system
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作者 李胜勇 陈文元 +3 位作者 张卫平 肖奇军 谈顺毅 冯敏华 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2009年第2期159-164,共6页
The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which co... The stronglink with muhi-try function based on MEMS technology and the PC startup in authentication system have been designed and fabricated. The generation principle and structure of UQS code are introduced, which consists of two groups of metal counter-meshing gears, two pawl/ratchet mechanisms, two driving micromotors and two resetting micromotors. The energy-coupling element is a photoelectric sensor with a circular and notched plate. It is fabricated using the UV-LiGA process and precision mechanical engineering. The PC startup authentication system is controlled by BIOS program, which is written into the chip according with special format. The program in BIOS output signals controls the running of stronglink to finish the process of authentication. The device can run more than 10000 times before a stop. The driving voltage is 12 V, and the normal decoding time is 3 s. 展开更多
关键词 stronglink multi-try UQS AUTHENTICATION PC startup
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