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公开(公告)号：US20180088733A1
公开(公告)日：2018-03-29
申请号：US15690565
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Taif A. SYED , Bingrui YANG , Christopher Tenzin MULLENS , Sumant RANGANATHAN
CPC classification number: G06F3/0418 , G06F1/3215 , G06F1/3262 , G06F3/0416 , G06F3/044 , G06F2203/04104 , G06F2203/04108
Abstract: An electronic device is disclosed. The electronic device can sense touch on its touch screen while in a sleep state in a manner that allows the electronic device to respond to certain touch inputs, while consuming less power due to touch sensing than while in an awake state. For example, sensing touch during the sleep state can allow the electronic device to wake (e.g., transition from the sleep state to the awake state) in response to detecting a certain touch input (e.g., a tap or other touch input) on its touch screen while in the sleep state. Various ways for the electronic device to sense touch during the sleep state are disclosed.
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公开(公告)号：US20170083152A1
公开(公告)日：2017-03-23
申请号：US14860364
申请日：2015-09-21
Applicant: Apple Inc.
Inventor： Alexandre GOUREVITCH , Albert LIN , Isaac CHAN , Martin Paul GRUNTHANER , Prathit BUGNAIT , Seyed Mohammad NAVIDPOUR , Sumant RANGANATHAN
IPC: G06F3/041 , G06F3/0354 , G06F3/044
CPC classification number: G06F3/0418 , G06F3/03545 , G06F3/0412 , G06F3/044 , G06F2203/04106
Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface of a touch sensor panel is disclosed. Electrodes associated with a more linear signal profile can correlate to lower wobble error. In some examples, electrodes can be configured such that the signal profile associated with each electrode is spread to be wider, and thus, more linear. In some configurations, electrodes can include two or more bars extending along the length of the electrode with each bar electrically connected to one another at one or both ends. Bars can be of non-uniform width or spacing. Some configurations can include a “split bar,” which can divide a bar lengthwise in order to improve optical uniformity. In some examples, electrodes can include projections which can interleave with corresponding projections in adjacent electrodes.
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公开(公告)号：US20220137693A1
公开(公告)日：2022-05-05
申请号：US17647961
申请日：2022-01-13
Applicant: Apple Inc.
Inventor： Taif A. SYED , Bingrui YANG , Christopher Tenzin MULLENS , Sumant RANGANATHAN
IPC: G06F1/3215 , G06F1/3234 , G06F3/041 , G06F3/044
Abstract: An electronic device is disclosed. The electronic device can sense touch on its touch screen while in a sleep state in a manner that allows the electronic device to respond to certain touch inputs, while consuming less power due to touch sensing than while in an awake state. For example, sensing touch during the sleep state can allow the electronic device to wake (e.g., transition from the sleep state to the awake state) in response to detecting a certain touch input (e.g., a tap or other touch input) on its touch screen while in the sleep state. Various ways for the electronic device to sense touch during the sleep state are disclosed.
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公开(公告)号：US20180088735A1
公开(公告)日：2018-03-29
申请号：US15698471
申请日：2017-09-07
Applicant: Apple Inc.
Inventor： Albert LIN , Shwetabh VERMA , Sumant RANGANATHAN
CPC classification number: G06F3/0418 , G06F3/0412 , G06F3/044 , G06F2203/04108
Abstract: Location-based swing compensation for touch sensor panels can improve touch sensing performance. Due to differences in impedance characteristics of touch nodes at different locations in a touch sensor panel (due to differences in routing to touch nodes and due to differences in impedance with respect to ground (loading effects) of touch nodes), touch nodes can have non-uniform bandwidth characteristics which can manifest as non-uniform signal and signal-to-noise ratio (SNR) across the touch sensor panel. Additionally, the non-uniform signal can reduce the effectiveness of bootstrapping. Swing compensated stimulation signals can be applied to various touch nodes based on location and/or impedance characteristics of the various touch nodes. For example, the stimulation voltage can be increased for touch nodes with longer and/or thinner routing traces so that the signal at the touch node can be uniform with other touch nodes whose routing may be shorter and/or thicker. In some examples, a touch sensing system can include a swing compensation memory including swing compensation parameters to select stimulation signal swing for transmit channels.
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公开(公告)号：US20210173466A1
公开(公告)日：2021-06-10
申请号：US17180537
申请日：2021-02-19
Applicant: Apple Inc.
Inventor： Taif A. SYED , Bingrui YANG , Christopher Tenzin MULLENS , Sumant RANGANATHAN
IPC: G06F1/3215 , G06F3/041 , G06F1/3234 , G06F3/044
Abstract: An electronic device is disclosed. The electronic device can sense touch on its touch screen while in a sleep state in a manner that allows the electronic device to respond to certain touch inputs, while consuming less power due to touch sensing than while in an awake state. For example, sensing touch during the sleep state can allow the electronic device to wake (e.g., transition from the sleep state to the awake state) in response to detecting a certain touch input (e.g., a tap or other touch input) on its touch screen while in the sleep state. Various ways for the electronic device to sense touch during the sleep state are disclosed.
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Patent Agency Ranking
公开(公告)号：US20190095006A1
公开(公告)日：2019-03-28
申请号：US16114023
申请日：2018-08-27
Applicant: Apple Inc.
Inventor： Shahrooz SHAHPARNIA , Christopher Tenzin MULLENS , Martin Paul GRUNTHANER , Adam GEBOFF , Vivek PANT , Marduke YOUSEFPOR , Christoph H. KRAH , Shwetabh VERMA , Sumant RANGANATHAN
Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.
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公开(公告)号：US20180275824A1
公开(公告)日：2018-09-27
申请号：US15522737
申请日：2015-10-27
Applicant: APPLE INC.
Inventor： Yingxuan LI , Weijun YAO , Vivek PANT , Martin Paul GRUNTHANER , Marduke YOUSEFPOR , Sumant RANGANATHAN
IPC: G06F3/041 , G06F3/044 , G06F3/0354
Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.
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公开(公告)号：US20160162011A1
公开(公告)日：2016-06-09
申请号：US14869975
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Shwetabh VERMA , Shahrooz SHAHPARNIA , Sumant RANGANATHAN , Vivek PANT
CPC classification number: G06F3/044 , G06F1/3215 , G06F1/3262 , G06F3/0416 , G06F2203/04101
Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing one or more coarse scans to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and dynamically adjusting the operation of the touch sensitive device to perform or not perform one or more steps of a fine scan based on the results of the one or more coarse scans. In some examples, the fine scan can be scheduled, and one or more steps of the fine scan can be aborted when no touch is detected at touch sensors scanned during the one or more steps. Sense channels unused due to the aborted fine scan steps can be powered down during aborted fine scan steps.
Abstract translation: 可以通过实施一个或多个粗略扫描来粗略地检测触摸或接近触摸传感器面板的物体的存在或不存在，并且动态地调整触敏设备的操作以执行触摸敏感设备的触摸感测操作的功耗 或者基于一个或多个粗略扫描的结果不执行精细扫描的一个或多个步骤。 在一些示例中，可以调度精细扫描，并且当在一个或多个步骤期间扫描的触摸传感器没有检测到触摸时，可以中止精细扫描的一个或多个步骤。 在中止的精细扫描步骤期间，由于中止的精细扫描步骤而未使用的感应通道可以关闭。
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公开(公告)号：US20200341585A1
公开(公告)日：2020-10-29
申请号：US16924047
申请日：2020-07-08
Applicant: Apple Inc.
Inventor： Yingxuan LI , Weijun YAO , Vivek PANT , Martin Paul GRUNTHANER , Marduke YOUSEFPOR , Sumant RANGANATHAN
IPC: G06F3/041 , G06F3/044 , G06F3/0354
Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.
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公开(公告)号：US20180067584A1
公开(公告)日：2018-03-08
申请号：US15691283
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Wencong ZHU , Albert LIN , Alexander A. PENN , Ashray Vinayak GOGTE , Chun-Hao TUNG , Hao ZHANG , Hui ZHOU , John Z. ZHONG , Steven P. HOTELLING , Sudip MONDAL , Sumant RANGANATHAN , Sunggu KANG
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F2203/04103 , G06F2203/04107
Abstract: Touch sensor configurations for reducing electrostatic discharge events in the border area of a touch sensor panel is disclosed. Touch sensors (e.g., electrodes formed on the cover material and/or the opaque mask) can be susceptible to certain events such as arcing and discharge/joule heating, which may negatively affect touch sensor performance. Examples of the disclosure can include increasing the trace width, spacing, and/or thickness in the border area relative to the trace width, spacing, and/or thickness in the visible/active area along one or more sides of the touch sensor panel. In some examples, touch electrodes can be located exclusively in the visible/active areas along one or more sides of the touch sensor panel, while dummy sections can be included in both the border and visible/active areas. Additionally or alternatively, one or more gaps between adjacent touch electrodes in the border area or serpentine routing can be included.
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