专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11731164B2 Pulse train excitation for capacitive micromachined ultrasonic transducer 有权
公开(公告)号：US11731164B2
公开(公告)日：2023-08-22
申请号：US17449235
申请日：2021-09-28
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Bo Ma , Kamyar Firouzi , Butrus T. Khuri-Yakub , Jose Joseph
IPC分类号： B06B1/02 , B06B1/06 , B81B3/00 , B81C1/00 , G01N29/06 , G01N29/24 , G01N29/22
CPC分类号： B06B1/0215 , B06B1/0292 , B06B1/0651 , B06B1/0662 , B81B3/0021 , B81C1/00166 , G01N29/0654 , G01N29/2406 , B06B2201/55 , B81B2201/0271 , B81B2203/04 , B81C2201/0157 , B81C2201/0178 , G01N29/22
摘要： Aspects of this disclosure relate to driving a capacitive micromachined ultrasonic transducer (CMUT) with a pulse train of unipolar pulses. The CMUT may be electrically excited with a pulse train of unipolar pulses such that the CMUT operates in a continuous wave mode. In some embodiments, the CMUT may have a contoured electrode.

2. 发明申请

US20220237941A1 ACOUSTIC BIOMETRIC TOUCH SCANNER 有权
公开(公告)号：US20220237941A1
公开(公告)日：2022-07-28
申请号：US17646406
申请日：2021-12-29
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Morten Fischer Rasmussen , Gerard Touma , Butrus T. Khuri-Yakub
IPC分类号： G06V40/13 , G06F21/32 , G06K19/073 , G06K19/07 , G06V10/147 , G06V40/12
摘要： An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.

3. 发明授权

US11293791B2 Leaky lamb wave flowmeter 有权
公开(公告)号：US11293791B2
公开(公告)日：2022-04-05
申请号：US16608987
申请日：2018-05-03
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Kamyar Firouzi , Butrus T. Khuri-Yakub
IPC分类号： G01F1/66 , G01F1/667 , G01N29/024 , G01N29/46
摘要： Propagation of leaky Lamb waves in pipe walls is used to provide a clamp-on acoustic flow meter for single-phase fluid flow in pipes. The received acoustic signals can be analyzed analytically, or by matching to numerical models, or with machine learning. In a preferred embodiment, variation of penetration depth of the leaky Lamb waves into the fluid flow with frequency provides an approach for measuring flow rate vs. radius with a clamp-on flow meter.

4. 发明申请

US20210220873A1 CONTOURED ELECTRODE FOR CAPACITIVE MICROMACHINED ULTRASONIC TRANSDUCER 有权
公开(公告)号：US20210220873A1
公开(公告)日：2021-07-22
申请号：US17152555
申请日：2021-01-19
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Bo Ma , Jose Joseph , Kamyar Firouzi , Butrus T. Khuri-Yakub
IPC分类号： B06B1/02 , B81B3/00 , B81C1/00
摘要： Aspects of this disclosure relate to a capacitive micromachined ultrasonic transducer (CMUT) with a contoured electrode. In certain embodiments, the CMUT has a contoured electrode. The electrode may be non-planar to correspond to a deflected shape of the outer plate. A change in distance between the electrode and the plate after deflection may be greater than a minimum threshold across the width of the CMUT.

5. 发明授权

US10691912B2 Ultrasonic biometric sensing device integrated with optics 有权
公开(公告)号：US10691912B2
公开(公告)日：2020-06-23
申请号：US16057638
申请日：2018-08-07
申请人： The Board of Trustees of the Leland Stanford Junior University , Orchid Sound Technologies LLC
发明人： Butrus T. Khuri-Yakub , Morten Fischer Rasmussen , Gerard Touma , John N. Irwin, III
IPC分类号： G06K9/00 , A61B5/026 , A61B5/024 , A61B5/08 , A61B5/1172 , G06F3/043 , H04M1/03 , A61B5/1455 , A61B5/00 , G06K9/22
摘要： Aspects of this disclosure relate to a biometric sensing device that includes a sensing device and an integrated optical system for authentication. For instance, the sensing device can be an ultrasonic sensing device that can generate an image of a fingerprint and the optical system can transmit light to a finger through the ultrasonic scanning device. In some instances, the acoustic biometric sensing device can generate a liveness parameter associated with a finger based on a reflection of the light.

6. 发明授权

US10489627B2 Acoustic biometric touch scanner 有权
公开(公告)号：US10489627B2
公开(公告)日：2019-11-26
申请号：US16399724
申请日：2019-04-30
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Morten Fischer Rasmussen , Gerard Touma , Butrus T. Khuri-Yakub
IPC分类号： G06K9/00 , G06K9/20 , G06F21/32 , G06K19/073
CPC分类号： G06K9/0002 , G06F21/32 , G06K9/0012 , G06K9/00114 , G06K9/209 , G06K19/07354 , G06K9/00892 , G06K2009/00939
摘要： An acoustic biometric touch scanner device and method is disclosed. In one aspect, an acoustic fingerprint sensing device includes an array of ultrasonic transducers configured to transmit an ultrasound signal having a frequency in a range from 50 megahertz (MHz) to 500 MHz. The acoustic fingerprint ultrasonic transducers include a piezoelectric film. The acoustic fingerprint sensing device further includes a receiving surface configured to receive a finger. The acoustic fingerprint sensing device further includes a processor configured to generate an image of at least a portion of a fingerprint of the finger based on a reflection of the ultrasound signal from the finger.

7. 发明申请

US20190050618A1 INTERACTIVE BIOMETRIC TOUCH SCANNER 审中-公开
公开(公告)号：US20190050618A1
公开(公告)日：2019-02-14
申请号：US16057666
申请日：2018-08-07
申请人： The Board of Trustees of the Leland Stanford Junior University , Orchid Sound Technologies LLC
发明人： Butrus T. Khuri-Yakub , Morten Fischer Rasmussen , Gerard Touma , John N. Irwin, III
IPC分类号： G06K9/00 , G06F3/043 , H04M1/03
摘要： Aspects of this disclosure relate to a biometric sensing device that combines sensing with an actuator for two way communication between a finger on a surface and the device. The sensor can also function as an actuator. A finger can be authenticated based on an image of the finger generated by the sensor and also based on a response to energy delivered to the finger by the actuator. Two way communication can provide more robust authentication than fingerprint sensing alone.

8. 发明申请

US20150377837A1 Ultrasonic sensor for object and movement detection 审中-公开
标题翻译：用于物体和运动检测的超声波传感器
公开(公告)号：US20150377837A1
公开(公告)日：2015-12-31
申请号：US14843644
申请日：2015-09-02
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Nikhil Prakash Apte , Jung Woo Choe , Anshuman Bhuyan , Amin Nikoozadeh , Butrus T. Khuri-Yakub
IPC分类号： G01N29/24
CPC分类号： G01N29/2406 , B06B1/0292 , G01N2291/044 , G01N2291/101
摘要： We provide arrays of capacitive micromachined ultrasonic transducer (CMUT) elements having large fractional bandwidth and configured such that each array element operates both to transmit and to receive. Large fractional bandwidth is provided by venting the CMUT cavity, which provides an additional source of damping for the resonant CMUT.
摘要翻译：我们提供具有大分数带宽的电容微机械超声换能器（CMUT）元件的阵列，并且被配置为使得每个阵列元件都工作以进行发射和接收。通过排放CMUT腔来提供大的分数带宽，这为谐振CMUT提供了额外的阻尼源。

9. 发明申请

US20150286341A1 multi-touch ultrasonic touch screen 审中-公开
标题翻译：多点触控超声波触摸屏
公开(公告)号：US20150286341A1
公开(公告)日：2015-10-08
申请号：US14646074
申请日：2013-11-19
申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
发明人： Butrus T. Khuri-Yakub , Amin Nikoozadeh , Kamyar Firouzi
IPC分类号： G06F3/043
CPC分类号： G06F3/0436 , G06F2203/04104
摘要： A multi-touch ultrasonic touchscreen is provided that includes a solid plate, an ultrasonic transducer disposed on an edge or surface of the solid plate that is capable of transmitting and receiving dispersive acoustic Lamb waves, and an appropriately programmed computer that is capable of operating the ultrasonic transducer to transmit and receive the dispersive acoustic Lamb waves, where the solid plate is capable of reflecting the transmitted dispersive acoustic Lamb waves internally and at edges and corners of the plate in a ubiquitous distribution within the solid plate, where the internal reflections include solid plate top and bottom surface reflections of the dispersive acoustic Lamb waves, where the edge and corner reflections are physical reflection to propagation of the dispersive acoustic Lamb waves, where the appropriately programmed computer is capable of operating on the received Lamb wave to determine an occurrence and location of a touch to the solid plate.
摘要翻译：提供一种多点触摸超声波触摸屏，其包括固体板，设置在能够发射和接收分散声音兰姆波的固体板的边缘或表面上的超声波换能器，以及能够操作超声波换能器以发射和接收分散声Lamb波，其中固体板能够在固体板内普遍存在的分布内反射内部和边缘和角落处的透射色散声Lamb波，其中内部反射包括固体分散声Lamb波的板顶和底面反射，其中边缘和角部反射是对分散声Lamb波的传播的物理反射，其中适当编程的计算机能够对接收的Lamb波进行操作以确定发生，并且触摸固体板的位置。

10. 发明申请

US20140362013A1 METHOD AND APPARATUS FOR SENSING TOUCH 有权
标题翻译：感应触摸的方法和装置
公开(公告)号：US20140362013A1
公开(公告)日：2014-12-11
申请号：US14300033
申请日：2014-06-09
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Amin Nikoozadeh , Butrus T. Khuri-Yakub
IPC分类号： G06F3/041
CPC分类号： G06F3/0414 , A61B5/021 , A61B5/024 , A61B5/1172 , A61B2562/0247 , A61B2562/046 , G06F3/044 , G06F21/32 , G06K9/0002 , G06K19/07
摘要： Aspects of the present disclosure are directed towards methods, systems, and apparatuses that include a pressure-sensor arrangement including a plate structure and a plurality or array of pressure-sensor cells. Additionally, the methods, systems, and apparatuses include integrated circuitry communicatively coupled to the pressure-sensor arrangement that senses pressure changes exhibited by changes in capacitance or vibrational characteristics.
摘要翻译：本公开的方面涉及包括压力传感器装置的方法，系统和装置，压力传感器装置包括板结构和多个或阵列的压力传感器单元。另外，方法，系统和装置包括通信地耦合到压力传感器装置的集成电路，其感测由电容或振动特性的变化所表现的压力变化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式