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31.发明申请公开(公告)号：US20160147352A1
公开(公告)日：2016-05-26
申请号：US14729508
申请日：2015-06-03
Applicant: Apple Inc.
Inventor： Sinan Filiz , James E. Pedder , Charley T. Ogata , John Stephen Smith , Dhaval Chandrakant Patel , Shin John Choi , Brian Q. Huppi , Christopher J. Butler , Martin P. Grunthaner
IPC: G06F3/041
CPC classification number: G06F3/0414 , G01L1/005 , G01L1/16 , G01L1/18 , G01L1/20 , G01L1/205 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F3/045 , G06F2203/04103 , G06F2203/04105 , G06F2203/04111
Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
Abstract translation: 可以补偿环境影响的光学透明的力传感器，包括例如装置或周围环境的温度变化。 在一些示例中，两个力敏感层由柔顺层分开。 可以使用两个力敏感层的相对电响应来计算降低温度变化影响的触摸力的估计。 在一些实例中，使用具有各向异性应变特性的压电膜来降低温度的影响。
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公开(公告)号：US12153764B1
公开(公告)日：2024-11-26
申请号：US17448803
申请日：2021-09-24
Applicant: Apple Inc.
Inventor： John Stephen Smith , Cody A. Tapscott
IPC: G06F3/044 , G06F3/0354 , G06F3/041
Abstract: Systems, methods, and computer-readable media for enabling position determination of a stylus with receive architecture are provided. The stylus can comprise: a plurality of electrodes; a plurality of sensing circuits coupled to the plurality of electrodes, the plurality of sensing circuits configured to sense receive signals on the plurality of electrodes in response to stimulation signals from a touch sensor panel of an electronic device in communication with the stylus; and a processor coupled to the plurality of sensing circuits, the processor configured to: correlate the receive signals sensed by the plurality of electrodes with a first set of codes to generate correlation data; and transmit data including the correlation data or generated using the correlation data to the electronic device in communication with the stylus.
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公开(公告)号：US11531438B2
公开(公告)日：2022-12-20
申请号：US17326249
申请日：2021-05-20
Applicant: Apple Inc.
Inventor： John Stephen Smith , Amit Nayyar , Joseph Kurth Reynolds , Sagar Rajiv Vaze , Marduke Yousefpor
Abstract: Touch sensor panels (or touch screens) can improve signal-to-noise ratio (SNR) using touch electrode patterns for differential drive and/or differential sense techniques. In some examples, a touch sensor panel can include a two-dimensional array of touch nodes formed from a plurality of touch electrodes. Each column (or row) of touch nodes can be driven with a plurality of drive signals. For example, a first column (or row) of touch nodes can be driven by a first drive signal applied to one or more first touch nodes in the first column (or row) and a second drive signal applied to a one or more second touch nodes of the first column (or row). In some examples, the first drive signal and the second drive signal can be complimentary drive signals. In some examples, each row (or column) of touch electrodes can be sensed by differential sense circuitry.
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公开(公告)号：US11526240B1
公开(公告)日：2022-12-13
申请号：US17448774
申请日：2021-09-24
Applicant: Apple Inc.
Inventor： Daniel Jacob Benjamin Bechstein , Ullas Chandra Sekhar Pazhayaveetil , Jason Chueh-Ren Hu , Robert Ubo Liu , Rexford J. Garland , John Stephen Smith , Blake R. Marshall
IPC: G06F3/044 , H01L29/872 , G06F3/0354 , G06F3/041
Abstract: An input device such as a stylus for providing input to a touch-sensitive surface with reduced sensitivity to leakage current variations over temperature is disclosed. A passive stylus may include one or more diodes in parallel with one or more bleed resistors. The non-linear load of the diode and resistor network can be operative to provide a stylus electric field in response to a stimulation signal from an electronic device that can be capacitively coupled to, and sensed by, the electronic device. The signal sensed by the electronic device can be a function of the total leakage current, which can vary greatly as a function of temperature and frequency. In order to improve performance, the diode and resistor network, including the bleed resistor(s) and diodes within that network, can be selected and/or designed to provide a reduced variation in the leakage current and more accurate stylus detection.
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公开(公告)号：US11449175B2
公开(公告)日：2022-09-20
申请号：US16836789
申请日：2020-03-31
Applicant: Apple Inc.
Inventor： Srinath Hosur , Aryan Hazeghi , John Stephen Smith
Abstract: In some examples, an input device includes a non-linear component, such as a diode. In response to a drive signal, such as a sinusoidal wave, the non-linear passive input device can produce a non-linear output that includes frequency content at the second and other higher harmonics of the fundamental frequency of the drive signal, for example. In some examples, drive electrodes can be driven with a drive signal having one of two fundamental frequencies such that the frequency of the drive signals are applied in an alternating pattern. The electronic device can sense the signal of the stylus to determine the coarse location of the stylus along the sense electrodes and, based on the frequency content of the received signal, a fine location along the axis of the drive electrodes.
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Patent Agency Ranking
公开(公告)号：US10659866B2
公开(公告)日：2020-05-19
申请号：US16131996
申请日：2018-09-14
Applicant: Apple Inc.
Inventor： John Stephen Smith , Storrs T. Hoen
Abstract: Disclosed herein are electronic devices having a deformable surfaces through which a user can provide inputs to the device by applying a force such as a pinch or a squeeze. A particular embodiment is an earpiece with the deformable surface part of an elongate section extending from an earbud. The deformable surface includes an incompressible hyperelastic material and a pressure sensor. The pressure sensor includes a pressure sensing element and a void defined between the pressure sensing element and the incompressible hyperelastic material. An applied force is transferred by the incompressible hyperelastic material to compress the void and change an internal pressure thereof. The changed pressure is detected by the pressure sensor, and can result in changed operation of the electronic device.
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公开(公告)号：US10353506B2
公开(公告)日：2019-07-16
申请号：US15625952
申请日：2017-06-16
Applicant: Apple Inc.
Inventor： Michael Vosgueritchian , Sinan Filiz , James E. Pedder , John Stephen Smith , Saahil Mehra , Xiaofan Niu
Abstract: Structures and methods are disclosed for an electronic device having an input surface that uses dual sensors to measure forces applied to the input surface. The forces can be estimated over a greater range of values than would be possible with either sensor alone. A second sensor can be used after a first sensor has reached a limit. A first sensor can be a strain sensor and a second sensor a pressure sensor. Both sensors may be resistance based, with signals from both sensors can be combined and measured by processing circuitry. Each sensor type may be part of planar arrays disposed beneath the input surface.
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公开(公告)号：US20180364850A1
公开(公告)日：2018-12-20
申请号：US15625952
申请日：2017-06-16
Applicant: Apple Inc.
Inventor： Michael Vosgueritchian , Sinan Filiz , James E. Pedder , John Stephen Smith , Saahil Mehra , Xiaofan Niu
CPC classification number: G06F3/0414 , G06F3/0416 , G06F3/044 , G06F2203/04105 , G06F2203/04106
Abstract: Structures and methods are disclosed for an electronic device having an input surface that uses dual sensors to measure forces applied to the input surface. The forces can be estimated over a greater range of values than would be possible with either sensor alone. A second sensor can be used after a first sensor has reached a limit. A first sensor can be a strain sensor and a second sensor a pressure sensor. Both sensors may be resistance based, with signals from both sensors can be combined and measured by processing circuitry. Each sensor type may be part of planar arrays disposed beneath the input surface.
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公开(公告)号：US10139294B2
公开(公告)日：2018-11-27
申请号：US15457992
申请日：2017-03-13
Applicant: Apple Inc.
Inventor： Michael Vosgueritchian , John Stephen Smith , Sinan Filiz , James E. Pedder , Tingjun Xu , Xiaonan Wen
IPC: G01L1/22 , G06F3/041 , G06F3/045 , G06F3/0488
Abstract: One or more strain sensors can be included in an electronic device. Each strain sensor includes a strain sensitive element and one or more strain signal lines connected directly to the strain sensitive element. The strain sensor(s) are used to detect a force that is applied to the electronic device, to a component in the electronic device, and/or to an input region or surface of the electronic device. A strain sensitive element is formed or processed to have a first gauge factor and the strain signal line(s) is formed or processed to have a different second gauge factor. Additionally or alternatively, a strain sensitive element is formed or processed to have a first conductance and the strain signal line(s) is formed or processed to have a different second conductance.
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40.发明授权公开(公告)号：US10133418B2
公开(公告)日：2018-11-20
申请号：US15258810
申请日：2016-09-07
Applicant: Apple Inc.
Inventor： John Stephen Smith
Abstract: A strain-sensitive structure includes two resistive structures connected in series and formed on one surface of a substrate. One resistive structure is formed with a first trace arranged in first trace pattern. The other resistive structure is formed with a second trace arranged in a second trace pattern. The first resistive structure is configured to experience strain in response to an applied stress on the substrate. The second resistive structure is configured to experience less strain in response to the applied stress on the substrate compared to the first resistive structure. Together the strain-sensitive structure and the substrate form a force sensing layer that can be included in an electronic device.
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