公开(公告)号：US20240046691A1

公开(公告)日：2024-02-08

申请号：US17817169

申请日：2022-08-03

Applicant: QUALCOMM Incorporated

Inventor： Yipeng LU ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Kostadin Dimitrov DJORDJEV

IPC: G06V40/13 ,  B06B1/06

CPC classification number: G06V40/1306 ,  B06B1/0622 ,  G10K11/346

Abstract: Methods, devices and systems for providing extended reality effects are disclosed. In some examples, a control system may control a structure to provide extended reality effects and also may control an ultrasound-based haptic system to create haptic effects via transmitted ultrasonic waves. The ultrasound-based haptic system may include one or more arrays of ultrasonic transducers, such as piezoelectric micromachined ultrasonic transducers (PMUTs), mounted in or on the structure. The haptic effects may be created via air-coupled ultrasonic waves.

公开(公告)号：US20220312115A1

公开(公告)日：2022-09-29

申请号：US17301061

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Bernard HERRERA ,  Jessica Liu STROHMANN ,  Changting XU ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Kostadin Dimitrov DJORDJEV

IPC: H04R3/12 ,  G06F3/043 ,  G06F3/041 ,  H04R1/40 ,  H04R17/00 ,  H04R1/02 ,  G10K11/178

Abstract: Some disclosed devices may include a display stack, a cover layer proximate a first side of the display stack and a segmented transducer array proximate a second side of the display stack. The segmented transducer array may include a plurality of separate transducer segments. Each of the separate transducer segments may include a piezoelectric layer and a thin-film transistor (TFT) layer. The separate transducer segments may include transmitter transducer segments and receiver transducer segments. In some examples, a spacing between at least a first plurality of the transmitter transducer segments may correspond to a display stack and cover layer oscillation mode frequency in a range from 20 Hz to 20 kHz, from 15 kHz to 200 kHz or from 20 kHz to 400 kHz.

公开(公告)号：US20220058357A1

公开(公告)日：2022-02-24

申请号：US16947883

申请日：2020-08-21

Applicant: QUALCOMM Incorporated

Inventor： Changting XU ,  Soon Joon YOON ,  Camilo PEREZ SAAIBI ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Kostadin Dimitrov DJORDJEV

IPC: G06K9/00 ,  G06F3/0487 ,  H01L41/113

Abstract: Some disclosed methods involve acquiring, via an ultrasonic sensor system, first (reference) ultrasonic signals at a first time and acquiring second ultrasonic signals via the ultrasonic sensor system at a second time. Such methods may involve determining, based at least in part on a comparison of the first ultrasonic signals and the second ultrasonic signals, whether one or more layers reside on the cover glass at the second time. If it is determined that the one or more layers reside on the cover glass at the second time, some methods may involve determining one or more signal characteristics corresponding to properties of the one or more layers and determining, based at least in part on the one or more properties, whether the one or more layers are compatible with the ultrasonic sensor system. If so, the method may involve calibrating the ultrasonic sensor system.

公开(公告)号：US20210325996A1

公开(公告)日：2021-10-21

申请号：US16854495

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

Inventor： Yue LIANG ,  Yipeng LU ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Jessica Liu STROHMANN ,  Changting XU

IPC: G06F3/043 ,  G06F3/041 ,  H01L27/32 ,  G06K9/00 ,  G01K1/14 ,  G06F21/32 ,  G01K7/01

Abstract: An example method of operation may include detecting a user touch in a first area based upon sensor data from one or more sensors of a first type, waking up one or more sensors of a second type configured to measure across some or all of the first area in response to the detecting, obtaining additional sensor data from the one or more sensors of the second type, and determining a location associated with the user touch based in part upon the sensor data from the one or more sensors of the second type.

公开(公告)号：US20210004555A1

公开(公告)日：2021-01-07

申请号：US16502962

申请日：2019-07-03

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar PANCHAWAGH ,  Nicholas Ian BUCHAN ,  Kostadin Dimitrov DJORDJEV

IPC: G06K9/00 ,  G06F3/041 ,  H01L41/047 ,  H01L41/113

Abstract: Techniques described herein address these and other issues by providing an under-display sensor capable of providing fingerprint scanning over an entire display using optical and/or ultrasonic means. To do so, the sensor comprises an array of pixels, where each can pixel comprises a piezoelectric sensor element and a diode capable of being used as a photodetector during a light-sensing mode, and as a peak detector during a pressure-sensing mode. The sensor may further comprise a piezoelectric layer and one or more electrodes, which can generate a pressure wave during the pressure sensing mode.