The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2019
Filed:
Mar. 27, 2017
Mediatek Inc., Hsinchu, TW;
Chuen-Shen Bernard Shung, San Jose, CA (US);
Jianhan Liu, San Jose, CA (US);
George Chien, Saratoga, CA (US);
YungPing Hsu, Taipei, TW;
Yasantha Rajakarunanayake, San Ramon, CA (US);
Dingchung Jann, Fremont, CA (US);
Tom Hsiou-Cheng Kao, Fremont, CA (US);
MediaTek Inc., Hsin-Chu, TW;
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.