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公开(公告)号：US12189899B2
公开(公告)日：2025-01-07
申请号：US17448879
申请日：2021-09-25
Applicant: Apple Inc.
Inventor： Andrew William Shorten , Sai Zhang , Andreas Johannes Koeberl , Eric S. Winokur , Liqun Yang , Sabino Joseph Pietrangelo, II , Branislav Jovanovic , Ari Y. Benbasat
Abstract: Techniques for rejecting apparent (but false) touches caused by objects such as water droplets located in areas with parasitic capacitive paths to ground are disclosed. To minimize these false touches, one or more guard conductors can be located in proximity to the housing and driven with a stimulation signal to shield objects from being capacitively coupled to ground through the housing. In some examples images of touch can be obtained from a non-bootstrapped or bootstrapped scan and also an extended bootstrapped scan wherein the guard conductor is driven with a stimulation signal that has the same characteristics as the stimulation signal being applied to the sensed touch nodes. In some examples, the results of the extended bootstrapped scan can be subtracted from the non-bootstrapped or bootstrapped scan to identify and reject apparent touches resulting from capacitive coupling to ground.
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公开(公告)号：US11269454B2
公开(公告)日：2022-03-08
申请号：US17177977
申请日：2021-02-17
Applicant: Apple Inc.
Inventor： Judd E. Reed , Ari Y. Benbasat
Abstract: Structured noise from various aggressors can be suppressed to improve touch performance. A respective noise characteristic can be determined for each respective group of touch nodes (e.g., row, column) among multiple groups of touch nodes in a masked touch image. The respective noise characteristic can be removed from the corresponding respective group of touch nodes in the touch image. For example, a respective noise characteristic can be determined for each respective row and/or for each respective column in the masked touch image. The respective noise characteristic can be removed from the respective row and/or column in the unmasked touch image. In some examples, the determining and subtracting of the noise characteristic can be repeated iteratively within a window of time and/or until one or more noise criteria are met.
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公开(公告)号：US11157109B1
公开(公告)日：2021-10-26
申请号：US16786921
申请日：2020-02-10
Applicant: Apple Inc.
Inventor： Andrew William Shorten , Sai Zhang , Andreas Johannes Koeberl , Eric S. Winokur , Liqun Yang , Sabino Joseph Pietrangelo, II , Branislav Jovanovic , Ari Y. Benbasat
Abstract: Techniques for rejecting apparent (but false) touches caused by objects such as water droplets located in areas with parasitic capacitive paths to ground are disclosed. To minimize these false touches, one or more guard conductors can be located in proximity to the housing and driven with a stimulation signal to shield objects from being capacitively coupled to ground through the housing. In some examples images of touch can be obtained from a non-bootstrapped or bootstrapped scan and also an extended bootstrapped scan wherein the guard conductor is driven with a stimulation signal that has the same characteristics as the stimulation signal being applied to the sensed touch nodes. In some examples, the results of the extended bootstrapped scan can be subtracted from the non-bootstrapped or bootstrapped scan to identify and reject apparent touches resulting from capacitive coupling to ground.
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公开(公告)号：US10928955B1
公开(公告)日：2021-02-23
申请号：US16107037
申请日：2018-08-21
Applicant: Apple Inc.
Inventor： Judd E. Reed , Ari Y. Benbasat
Abstract: Structured noise from various aggressors can be suppressed to improve touch performance. A respective noise characteristic can be determined for each respective group of touch nodes (e.g., row, column) among multiple groups of touch nodes in a masked touch image. The respective noise characteristic can be removed from the corresponding respective group of touch nodes in the touch image. For example, a respective noise characteristic can be determined for each respective row and/or for each respective column in the masked touch image. The respective noise characteristic can be removed from the respective row and/or column in the unmasked touch image. In some examples, the determining and subtracting of the noise characteristic can be repeated iteratively within a window of time and/or until one or more noise criteria are met.
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公开(公告)号：US12216520B2
公开(公告)日：2025-02-04
申请号：US17174292
申请日：2021-02-11
Applicant: Apple Inc.
Inventor： Jacob Z. Weiss , Ardra Singh , Ari Y. Benbasat , Arthur L. Spence , Asha G. Karvaje , Brent W. Schorsch , Giovanni Corradini , Steven S. Noble
IPC: G06F1/3234 , G04G21/08 , G06F1/3287 , G06F3/04883 , G09G5/00 , G09G5/02 , G09G5/10
Abstract: Direct access to device functionality from a low power state of the device is provided. The direct access can be provided without an initial user input to wake the device or the display of the device before activating the desired functionality. The low power state of the device may include a low power state of the display in which the time is persistently displayed, and may include a low power state or an inactive state of a main processor of the device. The direct access can be provided by detecting a type, location, or other aspects of a user input received while the device is in the low power state.
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Patent Agency Ranking
公开(公告)号：US11620021B1
公开(公告)日：2023-04-04
申请号：US17020749
申请日：2020-09-14
Applicant: Apple Inc.
Inventor： Sai Zhang , Behrooz Shahsavari , Ari Y. Benbasat , Nima Ferdosi
Abstract: Cross-coupling correction techniques on a touch sensor panel can be improved using machine learning models (particularly for touch sensor panels with relatively low signal-to-noise ratio). In some examples, the machine learning model can be implemented using a neural network. The neural network can receive a touch image and perform cross-coupling correction to mitigate cross-talk due to routing traces of the touch sensor panel. Mitigating cross-talk can improve touch sensing accuracy, reduce jitter, and/or reduce false positive touch detection.
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公开(公告)号：US10725595B2
公开(公告)日：2020-07-28
申请号：US15961742
申请日：2018-04-24
Applicant: Apple Inc.
Inventor： Stephen T. Schooley , Kendall L. Helbert , Ari Y. Benbasat , Clayton J. McCoy , Devon J. Rosner , Joshua A. Hoover , Sean M. Cole , Yufei Zhao , Zhao Liu , Judd Reed
Abstract: An electronic device such as a portable electronic device may have display with a capacitive touch sensor. A cover may have a front portion and a rear portion that bend along a bend axis. The front portion may overlap the display when the cover is closed. Conductive structures such as a patterned conductive layer having elongated strips of conductive material separated by gaps or another predetermined pattern may be formed in the front portion of a cover or other portion of a cover that overlaps the display and capacitive touch sensor when the cover is closed. Control circuitry in the device can gather capacitance images with the touch sensor and can detect when the cover has transitioned from open to closed or from closed to open from whether the predetermined pattern becomes present or becomes absent in the capacitance images.
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公开(公告)号：US10592027B2
公开(公告)日：2020-03-17
申请号：US15701069
申请日：2017-09-11
Applicant: Apple Inc.
Inventor： Sai Zhang , Branislav Jovanovic , Sean E. O'Connor , Ari Y. Benbasat
IPC: G06F3/041 , G06F3/044 , G06F1/3215 , G06F1/3234 , G02F1/1333 , G02F1/1343 , H04M1/02
Abstract: A touch sensitivity of a touch-sensitive surface can be adjusted based on a state of a device including the touch-sensitive surface. The state of the device can be a first state or a second state. In the first state, for example, the touch sensing system of the device can be programmed to recognize and process a wide range of touch signals including relatively weak touch signals, which may correspond to water, liquid or other unintentional touches. In the second state, for example, the touch detection threshold can be adjusted to better reject water or unintended touches. In some examples, a ratio of measurements captured using the different types of scans of a selected touch node can be used to determine the state of the device.
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公开(公告)号：US10444820B2
公开(公告)日：2019-10-15
申请号：US15701223
申请日：2017-09-11
Applicant: Apple Inc.
Inventor： Zhao Liu , Ari Y. Benbasat
IPC: G06F1/3234 , G06F3/041 , G06F1/3206 , G06F3/044
Abstract: Low-power touch detection can be beneficial for an electronic device to maintain touch detection and enable response to certain touch inputs in a low-power state (e.g., a sleep state), while consuming less power than touch detection during 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. Examples of the disclosure provide various ways for the electronic device to further reduce power consumption in the low-power state by simplifying the processing requirements for touch input to the touch-sensitive surface.
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公开(公告)号：US10185432B2
公开(公告)日：2019-01-22
申请号：US15294401
申请日：2016-10-14
Applicant: Apple Inc.
Inventor： Wayne Carl Westerman , Ari Y. Benbasat
IPC: G06F3/041 , G06F3/0488 , G06F3/044
Abstract: This relates to a method of extrapolating proximity information to generate a border column or row of touch nodes (also known as touch pixels) and then fitting an ellipse to the contact patch including the extrapolated border touch nodes. Additionally, a contact can be identified as a thumb based on both its major axis and its distance to an edge of the touch sensing surface.
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