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公开(公告)号：US10025401B2
公开(公告)日：2018-07-17
申请号：US14848277
申请日：2015-09-08
Applicant: Apple Inc.
Inventor： Priyanka Bhandari , Blake R. Marshall , Li-Quan Tan , Reza Nasiri Mahalati , Aidan N. Zimmerman , Ryan P. Brooks , Kevin C. Armendariz
IPC: G06F3/044 , G06F3/038 , G06F3/0354 , H01G5/12 , H01G5/14
Abstract: A ring electrode to determine the orientation of the stylus relative to the surface. The stylus can include a ring electrode configuration which can improve capacitive coupling between the ring electrode and the touch panel. The ring electrode configuration can include a ring electrode and ground ring, and ground plate. By varying the lengths of ring electrode, ground ring, ground plate, and the distance between these elements, the electric field emanating from the ring electrode can be tuned to optimize the capacitive coupling between the ring electrode and surface. In some examples, the ring electrode can include multiple sub-rings. In some examples, the ring electrode can comprise a crown shape including projections, each having a width that tapers to a minimum width along the length of the ring electrode.
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Patent Agency Ranking
公开(公告)号：US10585502B2
公开(公告)日：2020-03-10
申请号：US15680088
申请日：2017-08-17
Applicant: Apple Inc.
Inventor： Michael Nussbaum , Blake R. Marshall , Jason P. Marini , Li-Quan Tan
IPC: G06F3/03 , G06F3/044 , G06F1/32 , G06F3/038 , G06F3/0354 , G06F1/3234 , G06F3/041
Abstract: Input device power consumption can be reduced with a magnetic drive system. In some examples, the input device can include a transformer configured to generate a desired high output voltage from logic-level input pulses. In some examples, the distributed capacitance and associated resonance of the transformer can act as a low-pass filter, and can create a relatively clean output waveform from input logic signal waveforms. In some examples, the transformer can be an autotransformer. In some examples, to stabilize an amplitude of the output by sampling the output of the transformer and adjusting the input to the transformer based on the sampled output.
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公开(公告)号：US10198089B2
公开(公告)日：2019-02-05
申请号：US14848289
申请日：2015-09-08
Applicant: Apple Inc.
Inventor： Priyanka Bhandari , Blake R. Marshall , Li-Quan Tan , Reza Nasiri Mahalati , Aidan N. Zimmerman , Ryan P. Brooks , Kevin C. Armendariz
IPC: G06F3/0354 , G06F3/0338 , G06F3/044 , G06F3/038
Abstract: An electrode for an input device can be designed to reduce wobble over a range of input device orientations. The electrode can include a spherical portion and a tapered portion. In some examples, the electrode can linearly taper away from the spherical portion. In other examples, the electrode can non-linearly taper away forming an elliptical flare. Additionally or alternatively, the electrode can include a spring-loaded member that can couple the electrode to other circuitry of the input device. Additionally or alternatively, the electrode can include a neck portion coupled to the tapered portion, and part of the neck portion can be shielded. The input device can include a first non-conductive material disposed on part of the spherical portion of the electrode and a second non-conductive material disposed between part of the electrode and the first non-conductive material.
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公开(公告)号：US09848069B2
公开(公告)日：2017-12-19
申请号：US14496314
申请日：2014-09-25
Applicant: Apple Inc.
Inventor： Adam Geboff , Sriram Hariharan , Joakim Linde , Li-Quan Tan , Shahrooz Shahparnia
CPC classification number: H04L69/329 , H04L69/28 , H04W4/80 , H04W52/0274 , H04W56/00 , Y02D30/40 , Y02D70/142 , Y02D70/144
Abstract: Time synchronization between a central wireless communication device and a peripheral wireless communication device is described. Events associated with an application are time stamped at the central wireless communication device, and one or more link layer messages are sent to the peripheral wireless communication device to provide time stamp information to replicate the event timing at the peripheral wireless communication device. A first link layer message includes information about an internal Bluetooth clock to calibrate a corresponding internal clock value at the peripheral wireless communication device. A second link layer message includes information about a current value for the Bluetooth clock and also a value for an offset that provides a time position at a finer granularity than the Bluetooth clock within a timeslot specified by the Bluetooth clock value. Application layer event synchronization between the central and peripheral wireless communication devices allow for power reduced dormant states between events.
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公开(公告)号：US20150092642A1
公开(公告)日：2015-04-02
申请号：US14496314
申请日：2014-09-25
Applicant: Apple Inc.
Inventor： Adam Geboff , Sriram Hariharan , Joakim Linde , Li-Quan Tan , Shahrooz Shahparnia
CPC classification number: H04L69/329 , H04L69/28 , H04W4/80 , H04W52/0274 , H04W56/00 , Y02D30/40 , Y02D70/142 , Y02D70/144
Abstract: Time synchronization between a central wireless communication device and a peripheral wireless communication device is described. Events associated with an application are time stamped at the central wireless communication device, and one or more link layer messages are sent to the peripheral wireless communication device to provide time stamp information to replicate the event timing at the peripheral wireless communication device. A first link layer message includes information about an internal Bluetooth clock to calibrate a corresponding internal clock value at the peripheral wireless communication device. A second link layer message includes information about a current value for the Bluetooth clock and also a value for an offset that provides a time position at a finer granularity than the Bluetooth clock within a timeslot specified by the Bluetooth clock value. Application layer event synchronization between the central and peripheral wireless communication devices allow for power reduced dormant states between events.
Abstract translation: 描述了中央无线通信设备和外围无线通信设备之间的时间同步。 与应用相关联的事件在中央无线通信设备处被时间标记，并且一个或多个链路层消息被发送到外围无线通信设备，以提供时间戳信息来复制外围无线通信设备处的事件定时。 第一链路层消息包括关于内部蓝牙时钟的信息，以在外围无线通信设备上校准相应的内部时钟值。 第二链路层消息包括关于蓝牙时钟的当前值的信息，以及与由蓝牙时钟值指定的时隙内的蓝牙时钟相比在更细粒度处提供时间位置的偏移值。 中央和外围无线通信设备之间的应用层事件同步允许事件之间的功率降低休眠状态。
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公开(公告)号：US09904379B2
公开(公告)日：2018-02-27
申请号：US15057058
申请日：2016-02-29
Applicant: Apple Inc.
Inventor： Blake R. Marshall , Apexit Shah , Ari Y. Benbasat , Li-Quan Tan , Priyanka Bhandari , Reza Nasiri Mahalati , Sarah M. Bolton
IPC: G06F3/044 , G06F3/0354 , G06F3/041
CPC classification number: G06F3/03545 , G06F3/0418 , G06F3/044
Abstract: A level of wear of a stylus tip can be estimated and in accordance with a determination that the level of wear of the stylus tip exceeds a threshold, the stylus input functionality of an electronic device can be disabled. The threshold can be set such that the stylus can be disabled before the stylus sensing performance degrades to a degree perceptible to a human and/or before exposing internal portions of the stylus that can scratch a touch screen. Additionally or alternatively, a notification can be provided to indicate to a user that the stylus tip should be replaced. In some examples, the estimated level of wear can also be used to provide warning notifications. Stylus tip wear can be estimated, for example, based on a detected total signal strength or based on an estimated total distance traversed by the stylus tip across a surface.
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