公开(公告)号：US20210073502A1

公开(公告)日：2021-03-11

申请号：US16751820

申请日：2020-01-24

Applicant: QUALCOMM Incorporated

Inventor： Nicholas Ian Buchan ,  Hrishikesh Vijaykumar Panchawagh ,  Jessica Liu Strohmann ,  Sandeep Louis D'Souza

IPC: G06K9/00 ,  G06F3/043 ,  G06F3/01 ,  G06F21/32 ,  G01N29/24 ,  H01L41/08

Abstract: An apparatus may include an ultrasonic sensor system, a low-frequency vibration source and a control system. The ultrasonic sensor system may include an ultrasonic receiver and an ultrasonic transmitter configured for transmitting ultrasonic waves in a first frequency range (e.g., 1 MHz to 30 MHz). The low-frequency vibration source may be configured for generating low-frequency vibrations in a second frequency range (e.g., the range of 5 Hz to 2000 Hz). The control system may be configured for synchronizing the generation of the first low-frequency vibrations and the transmission of the first ultrasonic waves.

公开(公告)号：US10831290B2

公开(公告)日：2020-11-10

申请号：US16283620

申请日：2019-02-22

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar Panchawagh ,  Kostadin Dimitrov Djordjev ,  Changting Xu

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038

Abstract: A stylus-tracking device may include a piezoelectric receiver or transceiver array on a first side (e.g., underneath) a display. Image data may be acquired from the piezoelectric receiver array. The image data may correspond to signals produced by the piezoelectric receiver array in response to an acoustic signal and/or a mechanical deformation caused by a target object (e.g., a stylus) in contact with a surface, such as a cover glass, proximate a second side of the display. A doublet pattern in the image data may include a first area of having signals below a threshold level and a second area having signals above the threshold level. Based on one or more doublet pattern characteristics, a position of the target object on the surface, a force of the target object on the surface and/or a first direction of movement of the target object relative to the surface may be estimated.

公开(公告)号：US10552658B2

公开(公告)日：2020-02-04

申请号：US15469290

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu Strohmann ,  Yair Karmi ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh ,  David William Burns

IPC: G06K9/00 ,  G06F3/043

Abstract: A mobile device may include a first fingerprint sensor, including a platen, residing on a first side of the mobile device, and a display residing on a second side of the mobile device. The second side may be opposite from the first side. The mobile device may include a control system configured for communication with the first fingerprint sensor and the display. The control system may be further configured for receiving first fingerprint sensor signals from the first fingerprint sensor corresponding to a fingerprint contact area of a first finger positioned on the platen, for detecting one or more finger distortions corresponding to changes of the first fingerprint sensor signals and for controlling the mobile device based, at least in part, on the one or more finger distortions.

公开(公告)号：US10139479B2

公开(公告)日：2018-11-27

申请号：US14883586

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Yipeng Lu ,  Hao-Yen Tang ,  Hrishikesh Vijaykumar Panchawagh

IPC: G06F3/043 ,  G01S7/52 ,  B06B1/06 ,  H01L41/047 ,  G10K11/34 ,  G06F3/041 ,  G06K9/00 ,  G10K11/26 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  H01L41/08 ,  B06B1/02

Abstract: An array of piezoelectric ultrasonic transducer elements includes a plurality of superpixel regions. Each superpixel region includes at least two pixel sets, a first pixel set of the at least two pixel sets being disposed in a central portion of the superpixel region, and at least a second pixel set being disposed in an outer portion of the superpixel region. An electrical coupling may be provided between the array and transceiver electronics. The transceiver electronics may be configured to operate the array in a selectable one of a first mode and a second mode. In the first mode, the array generates a substantially plane ultrasonic wave having a first acoustic pressure. In the second mode, the array generates, from each superpixel region, a focused beam having a second acoustic pressure that is substantially higher than the first acoustic pressure.

公开(公告)号：US20180276443A1

公开(公告)日：2018-09-27

申请号：US15469326

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu Strohmann ,  Yair Karmi ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh ,  David William Burns

IPC: G06K9/00

CPC classification number: G06K9/0012 ,  G06K9/0002 ,  G06K9/00073 ,  G06K9/22

Abstract: An apparatus may include an ultrasonic sensor system, a platen, a set of bioimpedance electrodes proximate the platen and a control system configured for communication with the ultrasonic sensor system and the set of bioimpedance electrodes. The control system may be further configured for controlling the ultrasonic sensor system to transmit ultrasonic waves, receiving ultrasonic sensor signals from the ultrasonic sensor system corresponding to ultrasonic waves reflected from a portion of a body in contact with the platen, receiving bioimpedance measurements from the set of bioimpedance electrodes and estimating a status of one or more biometric indicators of the portion of the body based on the ultrasonic sensor signals and the bioimpedance measurements.

公开(公告)号：US09995821B2

公开(公告)日：2018-06-12

申请号：US14883585

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Hao-Yen Tang ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh

IPC: G01S7/52 ,  B06B1/06 ,  H01L41/047 ,  G10K11/34 ,  G06F3/041 ,  G06F3/043 ,  G06K9/00 ,  G10K11/26 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  H01L41/08 ,  B06B1/02

CPC classification number: G01S7/5208 ,  B06B1/0207 ,  B06B1/0607 ,  B06B1/0644 ,  B06B1/0666 ,  B06B2201/20 ,  B06B2201/55 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  G01S15/8915 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04101 ,  G06K9/0002 ,  G06K9/00335 ,  G10K11/26 ,  G10K11/34 ,  G10K11/341 ,  G10K11/346 ,  H01L41/047 ,  H01L41/08

Abstract: An apparatus includes an array of pixels, each pixel including in-cell pixel logic and a piezoelectric micromechanical ultrasonic transducer (PMUT) element, each in-cell pixel logic being communicatively coupled with at least one adjacent pixel in the array. Transceiver electronics may operate the array in a selectable one of a first mode and a second mode. In the first mode, the array may generate a substantially plane ultrasonic wave. In the second mode, the array may generate, from at least one superpixel region, a focused beam of relatively high acoustic pressure, each superpixel region including at least one inner pixel disposed in a central portion of the superpixel region and at least a first group of outer pixels disposed in an outer portion of the superpixel region. The transceiver electronics may be configured to operate the array by configuring at least one in-cell pixel logic.

公开(公告)号：US09945818B2

公开(公告)日：2018-04-17

申请号：US14628211

申请日：2015-02-20

Applicant: QUALCOMM Incorporated

Inventor： Suryaprakash Ganti ,  Srikanth Chilukuru ,  Livingstone Song ,  Kostadin Dimitrov Djordjev ,  Jack Conway Kitchens ,  John Schneider ,  Nicholas Ian Buchan ,  Leonard Eugene Fennell ,  Hrishikesh Vijaykumar Panchawagh ,  Ashish Hinger ,  Nai-Kuei Kuo ,  Kollengode Narayanan ,  Samir Kumar Gupta ,  Timothy Dickinson ,  Max Hamel ,  David William Burns ,  Muhammed Ibrahim Sezan ,  Eugene Dantsker

IPC: G01N29/09 ,  G06K9/00

CPC classification number: G01N29/09 ,  G01N2291/018 ,  G06K9/0002

Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

公开(公告)号：US20150241393A1

公开(公告)日：2015-08-27

申请号：US14628211

申请日：2015-02-20

Applicant: QUALCOMM Incorporated

Inventor： Suryaprakash Ganti ,  Srikanth Chilukuru ,  Livingstone Song ,  Kostadin Dimitrov Djordjev ,  Jack Conway Kitchens ,  John Schneider ,  Nicholas Ian Buchan ,  Leonard Eugene Fennell ,  Hrishikesh Vijaykumar Panchawagh ,  Ashish Hinger ,  Nai-Kuei Kuo ,  Kollengode Narayanan ,  Samir Kumar Gupta ,  Timothy Dickinson ,  Max Hamel ,  David William Burns ,  Muhammed Ibrahim Sezan ,  Eugene Dantsker

IPC: G01N29/09

CPC classification number: G01N29/09 ,  G01N2291/018 ,  G06K9/0002

Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

Abstract translation: 公开了超声波按钮的实施例和使用超声波按钮的方法。 在一个实施例中，超声波按钮可以包括被配置为传送超声波的超声波发射器，被配置为接收超声波的反射波的压电接收器层，被配置为保护超声波发射器和压电接收器层的压板层， 第一匹配层，其被配置为将压板层的声阻抗与手指的脊的声阻抗匹配;以及超声波传感器阵列，被配置为使用反射波来检测手指。