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1. 发明申请

US20150198699A1 ULTRASONIC IMAGING WITH ACOUSTIC RESONANT CAVITY 有权
标题翻译：超声波成像与声学谐振腔
公开(公告)号：US20150198699A1
公开(公告)日：2015-07-16
申请号：US14589783
申请日：2015-01-05
申请人： QUALCOMM Incorporated
发明人： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei
IPC分类号： G01S7/52 , G01S15/02
CPC分类号： G01S7/52017 , G01S15/02 , G06K9/0002
摘要： Techniques describe structures and methods for generating larger output signals and improving image quality of ultrasonic sensors by inclusion of an acoustic cavity in the sensor stack. In some embodiments, an ultrasonic sensor unit may be tuned during manufacturing or during a provisioning phase to work with different thicknesses and materials. In some embodiments, a standing wave signal may be generated using an acoustic cavity in the ultrasonic sensor unit for capturing an ultrasonic image of an object placed on a sensor surface. In some implementations, the ultrasonic sensor may include an ultrasonic transmitter, a piezoelectric receiver, a thin film transistor (TFT) layer and a TFT substrate positioned between the transmitter and the receiver, one or more adhesive layers, and optional cover materials and coatings. The thickness, density and speed of sound of the sensor materials and associated adhesive attachment layers may be used to attain the desired acoustic cavity and improved performance.
摘要翻译：技术描述了通过在传感器堆叠中包含声腔来产生更大输出信号和提高超声波传感器的图像质量的结构和方法。在一些实施例中，超声波传感器单元可以在制造期间或在供应阶段期间被调整以使用不同的厚度和材料。在一些实施例中，可以使用超声波传感器单元中的声腔来产生驻波信号，用于捕获放置在传感器表面上的物体的超声波图像。在一些实施方案中，超声波传感器可以包括位于发射器和接收器之间的超声波发射器，压电接收器，薄膜晶体管（TFT）层和TFT衬底，一个或多个粘合剂层以及任选的覆盖材料和涂层。可以使用传感器材料和相关联的粘合剂附着层的厚度，密度和声速来获得所需的声腔并提高性能。

2. 发明申请

US20180031686A1 ULTRASONIC IMAGING WITH ACOUSTIC RESONANT CAVITY 审中-公开
公开(公告)号：US20180031686A1
公开(公告)日：2018-02-01
申请号：US15782750
申请日：2017-10-12
申请人： QUALCOMM Incorporated
发明人： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei , Ashish Hinger , David William Burns
IPC分类号： G01S7/52 , G06K9/00 , G01S15/02
CPC分类号： G01S7/52017 , G01S15/02 , G06K9/0002
摘要： Techniques describe structures and methods for generating larger output signals and improving image quality of ultrasonic sensors by inclusion of an acoustic cavity in the sensor stack. In some embodiments, an ultrasonic sensor unit may be tuned during manufacturing or during a provisioning phase to work with different thicknesses and materials. In some embodiments, a standing wave signal may be generated using an acoustic cavity in the ultrasonic sensor unit for capturing an ultrasonic image of an object placed on a sensor surface. In some implementations, the ultrasonic sensor may include an ultrasonic transmitter, a piezoelectric receiver, a thin film transistor (TFT) layer and a TFT substrate positioned between the transmitter and the receiver, one or more adhesive layers, and optional cover materials and coatings. The thickness, density and speed of sound of the sensor materials and associated adhesive attachment layers may be used to attain the desired acoustic cavity and improved performance.

3. 发明申请

US20160350573A1 MULTI-SPECTRAL ULTRASONIC IMAGING 审中-公开
标题翻译：多光谱超声成像
公开(公告)号：US20160350573A1
公开(公告)日：2016-12-01
申请号：US15115058
申请日：2015-03-05
申请人： QUALCOMM INCORPORATED
发明人： Jack Conway Kitchens, II , John Keith Schneider , Ashish Hinger , Ranjith Ranganathan , Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Stephen Michael Gojevic , David William Burns , Nao Sugawara Chuei , Eliza Yingzi Du , Ming Yu Chen , Kwokleung Chan , Jin Gu , Esra Vural
IPC分类号： G06K9/00 , G06K9/62 , G01S15/89
CPC分类号： G06K9/0002 , G01S15/8952 , G06K9/00067 , G06K9/00114 , G06K9/6289
摘要： Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan frequency provides an image information set describing a plurality of pixels of the finger including a signal-strength indicating an amount of energy reflected from a surface of a platen on which a finger is provided. For each of the pixels, the pixel output value corresponding to each of the scan frequencies is combined to produce a combined pixel out put value for each pixel. Systems and methods for improving the data capture of multi-spectral ultrasonic imaging are also disclosed.
摘要翻译：公开了用于多光谱超声成像的系统和方法。在一个实施例中，以多个超声波扫描频率扫描手指。每个扫描频率提供描述手指的多个像素的图像信息集，其包括指示从其上提供手指的台板的表面反射的能量的信号强度。对于每个像素，对应于每个扫描频率的像素输出值被组合以产生每个像素的组合像素输出值。还公开了用于改进多光谱超声成像的数据捕获的系统和方法。

4. 发明授权

US10274590B2 Ultrasonic imaging with acoustic resonant cavity 有权
公开(公告)号：US10274590B2
公开(公告)日：2019-04-30
申请号：US15782750
申请日：2017-10-12
申请人： QUALCOMM Incorporated
发明人： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei , Ashish Hinger , David William Burns
IPC分类号： G01S7/52 , G01S15/02 , G06K9/00
摘要： Techniques describe structures and methods for generating larger output signals and improving image quality of ultrasonic sensors by inclusion of an acoustic cavity in the sensor stack. In some embodiments, an ultrasonic sensor unit may be tuned during manufacturing or during a provisioning phase to work with different thicknesses and materials. In some embodiments, a standing wave signal may be generated using an acoustic cavity in the ultrasonic sensor unit for capturing an ultrasonic image of an object placed on a sensor surface. In some implementations, the ultrasonic sensor may include an ultrasonic transmitter, a piezoelectric receiver, a thin film transistor (TFT) layer and a TFT substrate positioned between the transmitter and the receiver, one or more adhesive layers, and optional cover materials and coatings. The thickness, density and speed of sound of the sensor materials and associated adhesive attachment layers may be used to attain the desired acoustic cavity and improved performance.

5. 发明授权

US09817108B2 Ultrasonic imaging with acoustic resonant cavity 有权
公开(公告)号：US09817108B2
公开(公告)日：2017-11-14
申请号：US14589783
申请日：2015-01-05
申请人： QUALCOMM Incorporated
发明人： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei
IPC分类号： G01S7/52 , G01S15/02 , G06K9/00
CPC分类号： G01S7/52017 , G01S15/02 , G06K9/0002
摘要： Techniques describe structures and methods for generating larger output signals and improving image quality of ultrasonic sensors by inclusion of an acoustic cavity in the sensor stack. In some embodiments, an ultrasonic sensor unit may be tuned during manufacturing or during a provisioning phase to work with different thicknesses and materials. In some embodiments, a standing wave signal may be generated using an acoustic cavity in the ultrasonic sensor unit for capturing an ultrasonic image of an object placed on a sensor surface. In some implementations, the ultrasonic sensor may include an ultrasonic transmitter, a piezoelectric receiver, a thin film transistor (TFT) layer and a TFT substrate positioned between the transmitter and the receiver, one or more adhesive layers, and optional cover materials and coatings. The thickness, density and speed of sound of the sensor materials and associated adhesive attachment layers may be used to attain the desired acoustic cavity and improved performance.

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