公开(公告)号：US20230063693A1

公开(公告)日：2023-03-02

申请号：US17446436

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： Shiang-Chi LIN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Jessica Liu STROHMANN ,  Yipeng LU ,  Chin-Jen TSENG ,  Kostadin Dimitrov DJORDJEV ,  Min-Lun YANG ,  Chia-Wei YANG

IPC: G06K9/00 ,  G06F21/32 ,  G01S7/52

Abstract: An apparatus may include an ultrasonic sensor stack, a foldable display stack and a transmission enhancement layer. The foldable display stack may include a display stiffener and display stack layers. The display stack layers may form one or more display stack resonators configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a first ultrasonic frequency range. In some implementations, a transmission enhancement resonator may include the display stiffener and the transmission enhancement layer. In some examples, the transmission enhancement resonator may include at least a portion of the ultrasonic sensor stack. The transmission enhancement resonator may be configured to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack in the first ultrasonic frequency range.

公开(公告)号：US20240037979A1

公开(公告)日：2024-02-01

申请号：US18486914

申请日：2023-10-13

Applicant: QUALCOMM Incorporated

Inventor： Shiang-Chi LIN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Jessica Liu STROHMANN ,  Yipeng LU ,  Chin-Jen TSENG ,  Kostadin Dimitrov DJORDJEV ,  Min-Lun YANG ,  Chia-Wei YANG

IPC: G06V40/13 ,  G01S7/52 ,  G06F21/32

CPC classification number: G06V40/1306 ,  G01S7/52079 ,  G06F21/32

Abstract: An apparatus may include an ultrasonic sensor stack, a foldable display stack and a transmission enhancement layer. The foldable display stack may include a display stiffener and display stack layers. The display stack layers may form one or more display stack resonators configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a first ultrasonic frequency range. In some implementations, a transmission enhancement resonator may include the display stiffener and the transmission enhancement layer. In some examples, the transmission enhancement resonator may include at least a portion of the ultrasonic sensor stack. The transmission enhancement resonator may be configured to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack in the first ultrasonic frequency range.

公开(公告)号：US20230252816A1

公开(公告)日：2023-08-10

申请号：US18302241

申请日：2023-04-18

Applicant: QUALCOMM Incorporated

Inventor： Shiang-Chi LIN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Jessica Liu STROHMANN ,  Yipeng LU ,  Chin-Jen TSENG ,  Kostadin Dimitrov DJORDJEV ,  Min-Lun YANG ,  Chia-Wei YANG

IPC: G06V40/13 ,  G01S7/52 ,  G06F21/32

CPC classification number: G06V40/1306 ,  G01S7/52079 ,  G06F21/32

Abstract: An apparatus may include an ultrasonic sensor stack, a foldable display stack and a transmission enhancement layer. The foldable display stack may include a display stiffener and display stack layers. The display stack layers may form one or more display stack resonators configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a first ultrasonic frequency range. In some implementations, a transmission enhancement resonator may include the display stiffener and the transmission enhancement layer. In some examples, the transmission enhancement resonator may include at least a portion of the ultrasonic sensor stack. The transmission enhancement resonator may be configured to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack in the first ultrasonic frequency range.

公开(公告)号：US20240338964A1

公开(公告)日：2024-10-10

申请号：US18611365

申请日：2024-03-20

Applicant: QUALCOMM Incorporated

Inventor： Shiang-Chi LIN ,  Jessica Liu STROHMANN ,  Hrishikesh Vijaykumar PANCHAWAGH

IPC: G06V40/13 ,  B06B1/06

CPC classification number: G06V40/1306 ,  B06B1/0688

Abstract: Some disclosed devices include a display system having a display stack, an ultrasonic fingerprint sensor system including an ultrasonic fingerprint sensor system stack and a stiffener layer residing between the display stack and the ultrasonic fingerprint sensor system stack. In some examples, the stiffener layer may have a stiffener layer thickness that allows the ultrasonic fingerprint sensor system to operate in a near-field mode. According to some examples, operating in the near-field mode may involve transmitting ultrasound having a peak frequency in a range from 1 megahertz (MHz) to 6 MHz.