公开(公告)号：US20160345188A1

公开(公告)日：2016-11-24

申请号：US15062932

申请日：2016-03-07

Applicant: QUALCOMM Incorporated

Inventor： Kenneth CHEN ,  Anand PALANIGOUNDER ,  Soo Bum LEE

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L9/0861 ,  H04L2209/08 ,  H04L2209/805 ,  H04W84/12

Abstract: Aspects of the disclosure are related to a method for generating random numbers based on WLAN signal measurements, comprising: measuring WLAN signals; harvesting entropy based on the WLAN signal measurements; and generating a random number based on the harvested entropy.

Abstract translation: 本公开的方面涉及基于WLAN信号测量产生随机数的方法，包括：测量WLAN信号; 基于WLAN信号测量的收获熵; 并基于收获的熵生成随机数。

公开(公告)号：US20200020330A1

公开(公告)日：2020-01-16

申请号：US16036538

申请日：2018-07-16

Applicant: QUALCOMM Incorporated

Inventor： Xu GUO ,  Arvind KRISHNASWAMY ,  Liang CAI ,  Nabanita SEN ,  Jyotsna KRISHNASWAMY ,  Kenneth CHEN

IPC: G10L15/22 ,  G10L17/06 ,  G01R31/00

Abstract: Techniques for operating a voice-activated computing device are provided. These techniques can be used to prevent voice-based attacks on such devices. An example method according to these techniques includes receiving audio content comprising a voice command, monitoring electromagnetic (EM) emissions using an EM detector of the voice-activated computing device, determining whether the audio content comprising the voice command was generated electronically or was issued by a human user based on the EM emissions detected while receiving the audio content comprising the voice command, and preventing the voice command from being executed by the voice-activated computing device responsive to determining that the voice command was generated electronically.