公开(公告)号：US20170200054A1

公开(公告)日：2017-07-13

申请号：US15472173

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Eliza Yingzi Du ,  Ming Yu Chen ,  Esra Vural ,  Kwokleung Chan ,  David William Burns ,  Suryaprakash Ganti ,  John Keith Schneider ,  Saurav Kumar Bandyopadhyay ,  Jin Gu

IPC: G06K9/00

CPC classification number: G06K9/00906 ,  G06K9/0002 ,  G06K9/00093 ,  G06K9/001 ,  G06K9/00107 ,  G06K9/00114 ,  G06T7/32 ,  G06T7/337 ,  G06T7/344 ,  G06T7/44 ,  G06T2207/10132 ,  G06T2207/20064 ,  G06T2207/20072

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：US10254881B2

公开(公告)日：2019-04-09

申请号：US15194377

申请日：2016-06-27

Applicant: QUALCOMM Incorporated

Inventor： Saurav Kumar Bandyopadhyay ,  Eliza Yingzi Du

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/043 ,  G06F1/16 ,  G06F3/0488 ,  G06F21/32

Abstract: An apparatus including an electronic device is configured with an ultrasonic touch sensor-based virtual button. The ultrasonic sensor is disposed behind a first portion of an exterior surface of the electronic device. A processor associated with one or both of the electronic device and the ultrasonic sensor is configured to: (i) process a signal received from the ultrasonic sensor so as to acquire image data of a surface or substance in contact with the first portion of the exterior surface; and (ii) make a first determination whether or not the acquired image data is related to an intended control touch on the first portion by determining whether or not the image data is characteristic of a fingerprint or a patterned stylus.

公开(公告)号：US20160378244A1

公开(公告)日：2016-12-29

申请号：US15194377

申请日：2016-06-27

Applicant: QUALCOMM Incorporated

Inventor： Saurav Kumar Bandyopadhyay ,  Eliza Yingzi Du

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/043 ,  G06F1/16

CPC classification number: G06F3/0416 ,  G06F1/1692 ,  G06F3/0414 ,  G06F3/042 ,  G06F3/0433 ,  G06F3/0488 ,  G06F21/32

Abstract: An apparatus including an electronic device is configured with an ultrasonic touch sensor-based virtual button. The ultrasonic sensor is disposed behind a first portion of an exterior surface of the electronic device. A processor associated with one or both of the electronic device and the ultrasonic sensor is configured to: (i) process a signal received from the ultrasonic sensor so as to acquire image data of a surface or substance in contact with the first portion of the exterior surface; and (ii) make a first determination whether or not the acquired image data is related to an intended control touch on the first portion by determining whether or not the image data is characteristic of a fingerprint or a patterned stylus.

Abstract translation: 包括电子设备的设备配置有基于超声波触摸传感器的虚拟按钮。 超声波传感器设置在电子设备的外表面的第一部分的后面。 与电子设备和超声波传感器中的一个或两者相关联的处理器被配置为：（i）处理从超声波传感器接收的信号，以便获取与外部的第一部分接触的表面或物质的图像数据 表面; 以及（ii）通过确定图像数据是否是指纹或图形触笔的特征来首先确定所获取的图像数据是否与第一部分上的预期控制触摸有关。