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苹果新专利：未来iPhone可在无信号时发出紧急求救
source link: https://tech.sina.com.cn/it/2020-01-10/doc-iihnzahk3272465.shtml
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新浪科技讯北京时间1月10日下午消息，据外媒报道，一项新的专利描述了iPhone可以使用蜂窝信号、Wi-Fi乃至其他附近设备，来发送紧急求救信标的多种方式，以及延长电池续航直至救援到达的数种方式。现有的iPhone可以按指令向当局发出警报信
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