Single code and multiple code transmission schemes which can provide variable rate services are presented in a WCDMA system.
WCDMA系统提出了单码和多码两种多速率传输方案。
A new kind of electronic and mechanical antitheft lock using digital code based on the technologies of PIC single-chip microcomputer, serial communication and wireless data transmission is introduced.
本文介绍了基于PIC单片机、串行通信技术和无线数据传输的新型数码防盗电子机械锁的设计。
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