公开(公告)号：US20170347234A1

公开(公告)日：2017-11-30

申请号：US15470000

申请日：2017-03-27

Applicant: MediaTek Inc.

Inventor： Chuen-Shen Bernard Shung ,  Jianhan Liu ,  George Chien ,  YungPing Hsu ,  Yasantha Rajakarunanayake ,  Dingchung Jann ,  Tom Hsiou-Cheng Kao

IPC: H04W4/02 ,  H04W72/04 ,  G08B3/10 ,  H04W4/22 ,  H04L5/00 ,  H04W52/02 ,  H04W56/00 ,  H04W84/12

CPC classification number: H04W4/023 ,  G08B3/1008 ,  G08B21/0272 ,  G08B25/016 ,  H04L5/0055 ,  H04W4/90 ,  H04W52/0229 ,  H04W52/0264 ,  H04W52/0274 ,  H04W56/002 ,  H04W72/0453 ,  H04W84/12 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/20 ,  Y02D70/26

Abstract: An emergency mode is provided in a portable electronic device for locating a survivor in a disaster. The device includes a wireless antenna to transmit and receive wireless signals; a memory to store one or more identifiers; a user interface to receive a command that enables the emergency mode. The device also includes one or more processors, which, in response to the command, detect via the wireless receiver a predetermined identifier that matches a stored identifier identifying a sender of the predetermined identifier as a trusted node. When the predetermined identifier and a timing measurement frame are received from the trusted node, the device sends a response to the trusted node to indicate its presence.

公开(公告)号：US10405139B2

公开(公告)日：2019-09-03

申请号：US15470000

申请日：2017-03-27

Applicant: MediaTek Inc.

Inventor： Chuen-Shen Bernard Shung ,  Jianhan Liu ,  George Chien ,  YungPing Hsu ,  Yasantha Rajakarunanayake ,  Dingchung Jann ,  Tom Hsiou-Cheng Kao

IPC: H04W4/02 ,  H04W4/90 ,  H04W56/00 ,  H04W52/02 ,  H04W72/04 ,  H04L5/00 ,  G08B3/10 ,  G08B25/01 ,  H04W84/12 ,  G08B21/02

Abstract: An emergency mode is provided in a portable electronic device for locating a survivor in a disaster. The device includes a wireless antenna to transmit and receive wireless signals; a memory to store one or more identifiers; a user interface to receive a command that enables the emergency mode. The device also includes one or more processors, which, in response to the command, detect via the wireless receiver a predetermined identifier that matches a stored identifier identifying a sender of the predetermined identifier as a trusted node. When the predetermined identifier and a timing measurement frame are received from the trusted node, the device sends a response to the trusted node to indicate its presence.