Screen lock from phone keypad and function lock from phone side button to make easy operation, to avoid phone to activate function without operation in pocket.
手机按键上的屏幕锁定功能和手机侧边的一键式锁定功能，方便操作，以免老年人不注意放在口袋启动某特殊功能。
This paper introduces MSP430 Ultra-Low Power Microcontroller and the ISD4004 chip. A multi-function telephone record system was designed with the two chips and 74c922 keypad encoder IC.
本文以介绍MSP430单片机和ISD4004语音芯片为基础，结合键盘控制器74c922和MSP430的外围设备设计了一台多功能电话留言系统。
The tactical Data Systems of SH-60F are Dual, redundant mission computers, Digital data bus architecture (MIL-STD-1553B), Multi-function keypad access, Cockpit video displays.
战术数据系统采用两台多任务计算机、1553B数据链、多模式键盘、座舱视频显示等。
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