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公开(公告)号：US20200279087A1
公开(公告)日：2020-09-03
申请号：US16289394
申请日：2019-02-28
Applicant: QUALCOMM Incorporated
Inventor： Jae Hyeong Seo , Kostadin Dimitrov Djordjev , Hrishikesh Vijaykumar Panchawagh , Sameer Wadhwa , Nicholas Ian Buchan , Yipeng Lu
Abstract: An ultrasonic fingerprint sensor system of the present disclosure may be provided with an ultrasonic transmitter or ultrasonic transceiver having an electrode layer divided into a plurality of electrode segments. The ultrasonic fingerprint sensor system may detect an object over one or more electrode segments and provide a voltage burst to one or more selected electrode segments for localized generation of ultrasonic waves. The localized generation of ultrasonic waves may facilitate localized readout for imaging. In some implementations, the voltage burst may be provided in a single-ended drive scheme or differential drive scheme.
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公开(公告)号：US10699095B2
公开(公告)日：2020-06-30
申请号：US16049236
申请日：2018-07-30
Applicant: QUALCOMM Incorporated
IPC: G06K9/00
Abstract: This disclosure provides systems, methods and apparatus for a controller configured to switch operation of a fingerprint sensor among operational modes. In one aspect, a fingerprint sensor may switch from operating in a first operational mode to a second operational mode based on one or more characteristics of fingerprint image data generated with the fingerprint sensor operating in the first operational mode. One of the first operational mode or the second operational mode may be a capacitive sensing mode, and the other may be an ultrasonic sensing mode.
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公开(公告)号：US10254901B2
公开(公告)日：2019-04-09
申请号：US14332267
申请日：2014-07-15
Applicant: QUALCOMM Incorporated
Inventor： Timothy Dickinson , Lennart Karl-Axel Mathe , Scott McCarthy , Kostadin Dimitrov Djordjev , Louis Dominic Oliveira , Qubo Zhou
Abstract: An apparatus includes an integrated circuit configured to be operatively coupled to a sensor array that is configured to generate an ultrasonic wave. The integrated circuit includes a transmitter circuit configured to provide a first signal to the sensor array. The integrated circuit further includes a receiver circuit configured to receive a second signal from the sensor array in response to providing the first signal. The sensor array includes an ultrasonic transmitter configured to generate the ultrasonic wave in response to the first signal and a piezoelectric receiver layer configured to detect a reflection of the ultrasonic wave.
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Patent Agency Ranking
公开(公告)号：US09990089B2
公开(公告)日：2018-06-05
申请号：US14332242
申请日：2014-07-15
Applicant: QUALCOMM Incorporated
Inventor： Timothy Dickinson , Lennart Karl-Axel Mathe , Scott McCarthy , Kostadin Dimitrov Djordjev , Louis Dominic Oliveira , Qubo Zhou
CPC classification number: G06F3/043 , G01H1/04 , G01S15/02 , G06F3/0416 , G06F3/0436
Abstract: A method of operation of an ultrasonic sensor array includes receiving a receiver bias voltage at a receiver bias electrode of the ultrasonic sensor array to bias piezoelectric sensor elements of the ultrasonic sensor array. The method further includes receiving a transmitter control signal at the ultrasonic sensor array to cause an ultrasonic transmitter of the ultrasonic sensor array to generate an ultrasonic wave. The method further includes generating data samples based on a reflection of the ultrasonic wave. The receiver bias voltage and the transmitter control signal are received from an integrated circuit that is coupled to the ultrasonic sensor array.
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公开(公告)号：US20180031686A1
公开(公告)日：2018-02-01
申请号：US15782750
申请日：2017-10-12
Applicant: QUALCOMM Incorporated
Inventor： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei , Ashish Hinger , David William Burns
CPC classification number: G01S7/52017 , G01S15/02 , G06K9/0002
Abstract: 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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公开(公告)号：US09323393B2
公开(公告)日：2016-04-26
申请号：US14071362
申请日：2013-11-04
Applicant: QUALCOMM Incorporated
Inventor： Kostadin Dimitrov Djordjev , Leonard Eugene Fennell , Nicholas Ian Buchan , David William Burns , Samir K. Gupta , Sanghoon Bae
CPC classification number: G06F3/0421 , G06K9/0002
Abstract: Various techniques and apparatuses are disclosed that provide for pixelated display modules that integrate an ultrasonic fingerprint or biometric sensing capability. In some implementations, the ultrasonic fingerprint sensor and the display components of the display module may share a common backplane. In some implementations, the ultrasonic fingerprint sensor may share a flex cable with other components in the display module. In some implementations, the ultrasonic fingerprint sensor may leverage conductive traces on a cover glass used to provide for touch input to the display module.
Abstract translation: 公开了提供集成超声波指纹或生物测定感测能力的像素化显示模块的各种技术和装置。 在一些实施方案中，超声波指纹传感器和显示模块的显示部件可以共享共同的背板。 在一些实施方案中，超声波指纹传感器可以与显示模块中的其他部件共享柔性电缆。 在一些实施方案中，超声波指纹传感器可以利用用于提供对显示模块的触摸输入的盖玻片上的导电迹线。
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公开(公告)号：US20150016223A1
公开(公告)日：2015-01-15
申请号：US14332242
申请日：2014-07-15
Applicant: QUALCOMM Incorporated
Inventor： Timothy Dickinson , Lennart Karl-Axel Mathe , Scott McCarthy , Kostadin Dimitrov Djordjev , Louis Dominic Oliveira , Qubo Zhou
IPC: G01S15/02
CPC classification number: G06F3/043 , G01H1/04 , G01S15/02 , G06F3/0416 , G06F3/0436
Abstract: A method of operation of an ultrasonic sensor array includes receiving a receiver bias voltage at a receiver bias electrode of the ultrasonic sensor array to bias piezoelectric sensor elements of the ultrasonic sensor array. The method further includes receiving a transmitter control signal at the ultrasonic sensor array to cause an ultrasonic transmitter of the ultrasonic sensor array to generate an ultrasonic wave. The method further includes generating data samples based on a reflection of the ultrasonic wave. The receiver bias voltage and the transmitter control signal are received from an integrated circuit that is coupled to the ultrasonic sensor array.
Abstract translation: 超声波传感器阵列的操作方法包括在超声波传感器阵列的接收器偏置电极处接收接收器偏置电压，以偏压超声波传感器阵列的压电传感器元件。 该方法还包括在超声波传感器阵列处接收发射器控制信号以使超声波传感器阵列的超声波发射器产生超声波。 该方法还包括基于超声波的反射生成数据样本。 接收器偏置电压和发射机控制信号从耦合到超声波传感器阵列的集成电路接收。
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公开(公告)号：US20150015515A1
公开(公告)日：2015-01-15
申请号：US14332267
申请日：2014-07-15
Applicant: QUALCOMM Incorporated
Inventor： Timothy Dickinson , Lennart Karl-Axel Mathe , Scott McCarthy , Kostadin Dimitrov Djordjev , Louis Dominic Oliveira , Qubo Zhou
CPC classification number: G06F3/043 , G01H1/04 , G01S15/02 , G06F3/0416 , G06F3/0436
Abstract: An apparatus includes an integrated circuit configured to be operatively coupled to a sensor array that is configured to generate an ultrasonic wave. The integrated circuit includes a transmitter circuit configured to provide a first signal to the sensor array. The integrated circuit further includes a receiver circuit configured to receive a second signal from the sensor array in response to providing the first signal. The sensor array includes an ultrasonic transmitter configured to generate the ultrasonic wave in response to the first signal and a piezoelectric receiver layer configured to detect a reflection of the ultrasonic wave.
Abstract translation: 一种装置包括被配置为可操作地耦合到被配置为产生超声波的传感器阵列的集成电路。 集成电路包括被配置为向传感器阵列提供第一信号的发射器电路。 集成电路还包括接收器电路，其被配置为响应于提供第一信号而从传感器阵列接收第二信号。 传感器阵列包括响应于第一信号产生超声波的超声波发射器和被配置为检测超声波的反射的压电接收层。
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