公开(公告)号：US20200147643A1

公开(公告)日：2020-05-14

申请号：US16738530

申请日：2020-01-09

Applicant: Qualcomm Incorporated

Inventor： Firas SAMMOURA ,  David William BURNS ,  Ravindra Vaman SHENOY

IPC: B06B1/06 ,  G06K9/00 ,  G06F3/041 ,  G06F1/3234 ,  G06F3/043

Abstract: Implementations of the subject matter described herein relate to sensors including piezoelectric micromechanical ultrasonic transducer (PMUT) sensor elements and arrays thereof. The PMUT sensor elements may be switchable between a non-ultrasonic force detection mode and an ultrasonic imaging mode. A PMUT sensor element may include a diaphragm that is capable of a static displacement on application of a force and is capable of a dynamic displacement when the PMUT sensor element transmits or receives ultrasonic signals. In some implementations, a PMUT sensor element includes a two dimensional-electron gas structure on the diaphragm. The sensors may further include a sensor controller configured to switch between a non-ultrasonic force detection mode and an ultrasonic imaging mode for one or more of the PMUT sensor elements, wherein an applied force is measured in the non-ultrasonic force detection mode and wherein an object is imaged ultrasonically during the ultrasonic imaging mode.

公开(公告)号：US20170343346A1

公开(公告)日：2017-11-30

申请号：US15169503

申请日：2016-05-31

Applicant: QUALCOMM Incorporated

Inventor： Firas SAMMOURA ,  Stephanie FUNG ,  Donald William KIDWELL, JR. ,  Ravindra Vaman SHENOY ,  David William BURNS

IPC: G01C9/20 ,  G01F23/296

CPC classification number: G01C9/20 ,  G01C9/18 ,  G01F23/2965

Abstract: A device may include a surface at least partially defining an enclosed region, a plurality of fluids within the enclosed region, the plurality of fluids comprising at least a first fluid having a first acoustic impedance and a second fluid having a second acoustic impedance different from the first acoustic impedance, a first piezoelectric transducer disposed on the surface, the first piezoelectric transducer being configured to generate a first wave reception signal based, at least in part, on an ultrasonic return wave received through at least one of the plurality of fluids, and a processor coupled to the first piezoelectric transducer and configured to determine a measurement of a tilt of the device based, at least in part, on the first wave reception signal.

公开(公告)号：US20250037498A1

公开(公告)日：2025-01-30

申请号：US18919355

申请日：2024-10-17

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar PANCHAWAGH ,  Ila Ravindra BADGE ,  Yipeng LU ,  Kostadin Dimitrov DJORDJEV ,  Suryaprakash GANTI ,  Chin-Jen TSENG ,  Nicholas BUCHAN ,  Tsongming KAO ,  Leonard Eugene FENNELL ,  Firas SAMMOURA ,  Jessica Liu STROHMANN ,  David William BURNS

IPC: G06V40/13 ,  B06B1/06 ,  G01S7/52 ,  G01S15/89 ,  H10K59/00 ,  H10K59/65 ,  H10K77/10 ,  H10K102/00

Abstract: Disclosed are methods, devices, apparatuses, and systems for an under-display ultrasonic fingerprint sensor. A display device may include a platen, a display underlying the platen, and an ultrasonic fingerprint sensor underlying the display, where the ultrasonic fingerprint sensor is configured to transmit and receive ultrasonic waves via an acoustic path through the platen and the display. A light-blocking layer and/or an electrical shielding layer may be provided between the ultrasonic fingerprint sensor and the display, where the light-blocking layer and/or the electrical shielding layer are in the acoustic path. A mechanical stress isolation layer may be provided between the ultrasonic fingerprint sensor and the display, where the mechanical stress isolation layer is in the acoustic path.

公开(公告)号：US20130109406A1

公开(公告)日：2013-05-02

申请号：US13661341

申请日：2012-10-26

Applicant: QUALCOMM Incorporated

Inventor： James Chester MEADOR ,  Jonathan Charles GRIFFITHS ,  Gaurav SETHI ,  David William BURNS ,  Philip Don FLOYD

IPC: H04W24/00

CPC classification number: H04L67/125 ,  H04L12/2807 ,  H04L2012/2841 ,  H04W4/029 ,  H04W4/33

Abstract: Techniques disclosed herein provide for utilizing network nodes in a building automation system (BAS) that provide a low cost, highly-accurate positioning system. During a commissioning process, nodes can be used to automatically determine a location of other nodes within the building, and the other nodes can be automatically associated with certain sensors and/or controls, based on their locations and attributes. Additional information may be exchanged between the other nodes and other elements of the BAS during the commissioning process. Ranging techniques can be used to locate and/or track nodes, allowing assets and people to be accurately located within the building.

Abstract translation: 本文公开的技术提供了在建筑物自动化系统（BAS）中利用提供低成本，高精度定位系统的网络节点。 在调试过程中，可以使用节点来自动确定建筑物内其他节点的位置，其他节点可以根据其位置和属性自动与某些传感器和/或控件相关联。 在调试过程中，可以在其他节点和BAS的其他元件之间交换附加信息。 测距技术可用于定位和/或跟踪节点，允许资产和人员准确地位于建筑物内。