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公开(公告)号：US20170227416A1
公开(公告)日：2017-08-10
申请号：US15019978
申请日：2016-02-10
Applicant: Apple Inc.
Inventor： Denis G. Chen , Brian S. Medower , Chin Han Lin
CPC classification number: G01M11/02 , G01J1/32 , G01J3/027 , G01J3/18 , G01J2001/0276
Abstract: Optical apparatus includes a primary radiation source, which emits first optical radiation along a first optical axis. A DOE includes at least an entrance surface, upon which the first optical radiation from the primary radiation source is incident, and an exit surface, through which one or more primary diffraction orders of the first optical radiation are emitted from the DOE. At least one secondary radiation source is configured to direct second optical radiation to impinge on the DOE along a second optical axis, which is non-parallel to the first optical axis, causing at least a part of the second optical radiation to be diffracted by the DOE such that one or more secondary diffraction orders of the second optical radiation are emitted through the entrance face of the DOE. At least one detector is configured to sense at least one of the secondary diffraction orders of the second optical radiation.
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公开(公告)号：US20250110557A1
公开(公告)日：2025-04-03
申请号：US18742701
申请日：2024-06-13
Applicant: Apple Inc.
Inventor： Darya Amin-Shahidi , Denis G. Chen , Stephanie Moon , Vyom Sharma
IPC: G06F3/01 , G06F3/0362 , H03K17/96
Abstract: A device includes a button, a set of force sensors coupled with the button, a haptic engine coupled to with the button, and control circuitry, where the control circuitry is configured to control operation of the device according to a first mode of operation during a first time duration to detect user force applied to the button via signals from the set of force sensors, and control the device according to a second mode of operation during a second time duration for closed loop control of haptic feedback to the button via the haptic engine and the set of force sensors.
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公开(公告)号：US12265654B2
公开(公告)日：2025-04-01
申请号：US17821948
申请日：2022-08-24
Applicant: Apple Inc.
Inventor： Denis G. Chen
IPC: G09G5/00 , A63F13/24 , G06F3/01 , G06F3/0354
Abstract: A torque feedback mechanism for a trigger or lever using a rotary reluctance engine is disclosed. In some examples, the rotary reluctance engine includes two fixed asymmetric core/coil assemblies located on one or both sides of a permanent magnet. In some examples, the core/coil assemblies are fixed in place, and the permanent magnet is coupled to the trigger or lever such that the magnet rotates with respect to the core/coil assemblies as the trigger or lever is squeezed. When the coils of the engine are programmably energized, the cores are magnetized at different angular rotations of the trigger or lever, creating a torque feedback profile that can be quickly modified to provide more or less torque at different angular displacements during the squeezing of the trigger or lever to emulate different triggers or levers.
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34.发明申请公开(公告)号：US20210408885A1
公开(公告)日：2021-12-30
申请号：US16915504
申请日：2020-06-29
Applicant: Apple Inc.
Inventor： Darya Amin-Shahidi , Denis G. Chen , Alex M. Lee , Scott D. Ridel
Abstract: A haptic actuator may include a housing, and a stator fixed to a medial interior portion of the housing. The haptic actuator may also include a field member having an opening receiving the stator therein. The field member may include a frame and at least one permanent magnet carried by the frame. The haptic actuator may also include at least one flexure coupled between an end of the frame and adjacent interior portions of the housing to permit reciprocal movement of the field member within the housing responsive to the stator.
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公开(公告)号：US10746570B2
公开(公告)日：2020-08-18
申请号：US15698477
申请日：2017-09-07
Applicant: Apple Inc.
Inventor： Denis G. Chen , Hari Vasudevan
Abstract: In an embodiment, a single-sided or double-sided moving magnet haptic engine comprises: a frame; one or more magnetic field sources mounted to the frame and operable to generate a magnetic field and a back electromotive force (EMF) voltage; a magnetic mass positioned within the frame and operable to move within the frame along a movement axis; a comparator mounted to the frame, the comparator operable to detect the magnetic field and to generate a signal indicating a crossing of one or more magnetic references by the magnetic field; and a processor coupled to the one or more sensors and operable to estimate a displacement of the magnetic mass on the movement axis based on the back EMF voltage and the signal. Other embodiments are directed to a single-sided or double-sided moving coil haptic engine.
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Patent Agency Ranking
公开(公告)号：US10436607B2
公开(公告)日：2019-10-08
申请号：US15674227
申请日：2017-08-10
Applicant: Apple Inc.
Inventor： Denis G. Chen , Arman Hajati , Manoj K. Bhattacharyya
Abstract: An integrated circuit (IC) chip including an array of asymmetrically distributed magnetic field sensing elements. Additionally, an integrated circuit (IC) chip includes a substrate, a sensing coil supported by the substrate and enclosing a portion of substrate, and a Hall effect sensor supported by the portion of the substrate enclosed by the sensing coil.
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公开(公告)号：US20190250713A1
公开(公告)日：2019-08-15
申请号：US16391100
申请日：2019-04-22
Applicant: Apple Inc.
Inventor： Denis G. Chen
Abstract: Described herein is a method for determining a higher order resonance mode frequency of a haptic actuator for an electronic device. The higher order resonance mode frequency may correspond to a frequency in which a mass of the haptic actuator exhibits undesired movement. The movement may cause the mass to collide or otherwise impact an enclosure of the haptic actuator. Once the higher order resonance mode frequency is determined, a delay or a polarity inversion may be added to one or more of a series of input waveforms to suppress or brake the undesired movement.
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公开(公告)号：US20190195620A1
公开(公告)日：2019-06-27
申请号：US16283661
申请日：2019-02-22
Applicant: Apple Inc.
Inventor： Denis G. Chen , Jui Hua Liu , Xingxing Cai
CPC classification number: G01B11/14 , G01B11/002 , G01D5/142 , G01D5/2013 , G01D5/30
Abstract: Systems and techniques are described for measuring displacement of a moving mass by combining (i) information obtained from scanning, using a beam of light, an intensity pattern disposed on a surface of the mass, with (ii) information obtained when a coil interacts with a magnet attached to the moving mass.
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公开(公告)号：US20190086277A1
公开(公告)日：2019-03-21
申请号：US16130777
申请日：2018-09-13
Applicant: Apple Inc.
Inventor： Denis G. Chen , Alex M. Lee , Shingo Yoneoka
Abstract: A haptic engine for measuring displacement of the haptic engine's mass uses a single sensing magnet that is carried by the mass along a driving direction. The haptic engine further uses two or more Hall-effect sensors, which are spaced apart (i) from each other along a direction parallel to the driving direction and (ii) from the single sensing magnet along a direction orthogonal to the driving direction, and are disposed adjacent to an ASIC that receives the sensors' output.
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公开(公告)号：US10215555B2
公开(公告)日：2019-02-26
申请号：US15674260
申请日：2017-08-10
Applicant: Apple Inc.
Inventor： Denis G. Chen , Jui Hua Liu , Xingxing Cai
Abstract: Systems and techniques are described for measuring displacement of a mass by using an array of beams for scanning a binary intensity pattern disposed on a surface of the mass. Further, systems and techniques are described for measuring displacement of a moving mass by combining (i) information obtained from scanning, using a beam of light, an intensity pattern disposed on a surface of the mass, with (ii) information obtained when a coil interacts with a magnet attached to the moving mass. Furthermore, systems and techniques are described for measuring displacement of a mass by illuminating an intensity pattern disposed on a surface of the mass with an array of beams and monitoring intensity of each of the beams that is redirected by the intensity pattern.
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