-
公开(公告)号：US11422113B2
公开(公告)日：2022-08-23
申请号：US16917779
申请日：2020-06-30
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Brian Michael King , George Ho Yin Mak , Marcus Yip , Giovanni Gozzini
Abstract: An ultrasonic touch sensing system that uses both compressional and shear waves for touch and water detection is disclosed. When no touch or water is present, less shear and compressional wave energy is absorbed, so both shear and compressional wave reflections do not have significant amplitude decreases. When a finger is in contact with the sensing plate, both shear and compressional wave energy is absorbed, so both shear and compressional wave reflections have significant amplitude decreases. When water is in contact with the sensing plate, compressional energy is absorbed but little or no shear wave energy is absorbed, so while compressional wave reflections have significant amplitude decreases, shear wave reflections do not. From these amplitudes, a determination can be made as to whether no touch is present on the sensing plate, whether a touch is present on the sensing plate, or whether water is present on the sensing plate.
-
公开(公告)号：US10725573B2
公开(公告)日：2020-07-28
申请号：US16056403
申请日：2018-08-06
Applicant: Apple Inc.
Inventor： Anuranjini Pragada , George Ho Yin Mak , Ehsan Khajeh , Brian Michael King , Maegan K. Spencer
Abstract: Acoustic touch sensing systems can include a mechanically integrated structure including multiple acoustic transducers. For example, an annular structure including one or more piezoelectric segments can be fabricated and then coupled to a front crystal/cover glass. A single structure can simplify the structural integration of the device, can provide a mechanically reliable and stable structure for improved structural integrity of the system, and can provide for improved water sealing for a waterproof or water resistant device. The piezoelectric material in the annular structure can be shear poled such that a poling direction of the piezoelectric material can follow the curvature of the annular piezoelectric structure.
-
公开(公告)号：US10802651B2
公开(公告)日：2020-10-13
申请号：US16256942
申请日：2019-01-24
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Aaron Scott Tucker , Brian Michael King , George Ho Yin Mak , Marcus Yip , Mohammad Yeke Yazdandoost
Abstract: This relates to system architectures, apparatus and methods for acoustic touch detection (touch sensing) and exemplary applications of the system architectures, apparatus and methods. In some examples, the acoustic touch sensing techniques described herein can be used on a glass surface of a display or touch screen. In some examples, an acoustic touch sensing system can be configured to be insensitive to contact on the device surface by water, and thus acoustic touch sensing can be used for touch sensing in devices that are likely to become wet or fully submerged in water.
-
Patent Agency Ranking
公开(公告)号：US12205399B2
公开(公告)日：2025-01-21
申请号：US18331867
申请日：2023-06-08
Applicant: Apple Inc.
Inventor： Daniel J. Hiemstra , George Ho Yin Mak , Ehsan Khajeh , Hoishun Li
Abstract: Improving the accuracy of ultrasonic touch sensing and fingerprint imaging using acoustic impedance matching is disclosed. Acoustic impedance mismatches between an ultrasonic transducer array and a sensing plate can be reduced to maximize energy transfer and minimize parasitic reflections. A reduction in acoustic impedance mismatches can be accomplished using (i) a composite epoxy having a higher acoustic impedance than epoxy alone, (ii) one or more matching layers having an acoustic impedance that is approximately the geometric mean of the acoustic impedance of the sensing plate and the acoustic impedance of the transducer array, (iii) pores or perforations in the sensing plate, or (iv) geometric structures formed in the sensing plate. In addition, parasitic reflections can be suppressed using an absorbent layer.
-
公开(公告)号：US11715321B2
公开(公告)日：2023-08-01
申请号：US17660308
申请日：2022-04-22
Applicant: Apple Inc.
Inventor： Daniel J. Hiemstra , George Ho Yin Mak , Ehsan Khajeh , Camille L. Everhart
CPC classification number: G06V40/1306 , G06F3/0412 , G06F3/0436 , G10K11/02
Abstract: Improving the accuracy of ultrasonic touch sensing and fingerprint imaging using acoustic impedance matching is disclosed. Acoustic impedance mismatches between an ultrasonic transducer array and a sensing plate can be reduced to maximize energy transfer and minimize parasitic reflections. A reduction in acoustic impedance mismatches can be accomplished using (i) a composite epoxy having a higher acoustic impedance than epoxy alone, (ii) one or more matching layers having an acoustic impedance that is approximately the geometric mean of the acoustic impedance of the sensing plate and the acoustic impedance of the transducer array, (iii) pores or perforations in the sensing plate, or (iv) geometric structures formed in the sensing plate. In addition, parasitic reflections can be suppressed using an absorbent layer.
-
公开(公告)号：US20230221435A1
公开(公告)日：2023-07-13
申请号：US18082422
申请日：2022-12-15
Applicant: Apple Inc.
Inventor： Jason S Griesbach , Brian M King , George Ho Yin Mak , Pierre P. Souloumiac , Thayne M. Miller
CPC classification number: G01S17/06 , G01S7/4811 , G01S7/4972
Abstract: An electronic device may include an infrared light source and an infrared image sensor to enable infrared beacon functionality. In a location sharing scenario, a first electronic device may use the infrared light source to emit infrared light and serve as an infrared beacon. A second electronic device may use the infrared image sensor to detect the infrared beacon and identify the location of the first electronic device. The infrared image sensor that is used to detect the infrared beacon may also serve as a time-of-flight sensor for a light detection and ranging (LiDAR) module. The second electronic device (that detects the infrared beacon) may provide output such as visual, audio, and/or haptic output to inform a user of the location of the infrared beacon.
-
公开(公告)号：US11531398B1
公开(公告)日：2022-12-20
申请号：US17408364
申请日：2021-08-20
Applicant: Apple Inc.
Inventor： XiaoYi Huang , George Ho Yin Mak
Abstract: Embodiments are disclosed for a gyroscopic precession engine for wearable devices. In an embodiment, a wearable device comprises: a support structure including at least one attachment mechanism for attaching the support structure to a human body part; at least one gyroscopic precession engine coupled to the support structure, the gyroscopic precession engine, comprising: a first motor configured to rotate a wheel mount at a first angular velocity; at least one wheel rotatably coupled to the wheel mount and configured to spin at a second angular velocity different than the first angular velocity; a second motor configured to spin the wheel at the second angular velocity; and at least one motor controller coupled to the first motor and the second motor, the at least one motor controller configured to rotate the wheel mount at the first angular velocity and spin the wheel at the second angular velocity, thereby producing a torque in a desired direction.
-
公开(公告)号：US10754440B2
公开(公告)日：2020-08-25
申请号：US16147384
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Yung-Yu Hsu , Mingjing Ha , Zhiyuan Sun , Paul S. Drzaic , Anuranjini Pragada , George Ho Yin Mak , Antonio Y. Layon Halun , Wesley W. Zuber
IPC: G06F3/044 , G06F3/042 , G06F3/041 , G06F3/02 , H03K17/96 , H01H13/7065 , H01H13/704 , G06F1/16
Abstract: Touch sensitive mechanical keyboards and processes for detecting touch events and key depressions on the touch sensitive mechanical keyboard are provided. The touch sensitive mechanical keyboard can include a set of individually depressible mechanical keys having a touch sensitive surface. A touch sensor layer can be disposed on top of a key mechanism and flexible interconnections provided between key segments of the touch sensor layer can allow for depression of the key mechanism of individual keys. In some examples, the flexible interconnections can be formed by patterning a spring-like structure into the touch sensor layer. In some examples, the touch sensor layer can be transparent or include openings to allow a backlight to shine through. In some examples, addressable LED backlighting with buckling interconnects can also be provided to illuminate keycaps of the mechanical keyboard.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.015 seconds)
