Based on Bell 202 communication standards, HART protocols transfer data with different frequency signals and plus with 4~20mA of analog signals.
该协议基于Bell202通信标准，在4～20mA的模拟信号上叠加不同的频率信号来传送数字信号。
By making use of the standard transport protocols and the Bell measurement bases, we investigate quantum teleportation with quantum dot as quantum channel. Our results show that the fidelity of teleportation is highly stable and quality.
利用标准传输协议和Bell基测量的方法，我们研究了当量子点作为量子信道时，量子隐形传输的传输质量问题，我们获得了高稳定和高保真的传输态。
Prior to joining Cisco in 1999, he was a Senior Staff Engineer of Bell lab for Lucent Technology U. S. A. He has been working in areas of network architecture and design, signaling and protocols, PSTN switching and IN service as well as 3G, IPTV, SP security and IP next generation networks.
在加入思科公司以前，他曾任美国朗讯科技公司贝尔实验室高级技术顾问，专注于电信通讯网的信令技术、系统结构、下一代网技术、IPTV技术、3G技术与组网研究以及IP数据网的协议分析和设计。