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公开(公告)号：US11635848B2
公开(公告)日：2023-04-25
申请号：US17388000
申请日：2021-07-28
Applicant: Synaptics Incorporated
Inventor： Katayoun Goudarzi , David Hoch , Tracy Scott Dattalo
Abstract: A capacitive sensing input system includes sensor electrodes disposed in a sensor electrode pattern and a processing system. When under a low ground mass (LGM) condition, proximity-sensing pairs of electrodes formed by a first selective pairing of the sensor electrodes have an increased sensitivity to a presence of an input object in comparison to LGM-sensitive pairs of electrodes formed by a second selective pairing of the sensor electrodes that are primarily sensitive to the LGM condition. The processing system is configured to, while under the LGM condition, determine a first LGM term using a mutual capacitance sensing with a first of the LGM-sensitive pairs of electrodes, obtain a first transcapacitance sensing signal for a sensing element formed by a first of the proximity-sensing pairs of electrodes, and generate an LGM-corrected transcapacitance sensing signal by correcting the first transcapacitance sensing signal using the first LGM term.
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公开(公告)号：US11507236B2
公开(公告)日：2022-11-22
申请号：US17158896
申请日：2021-01-26
Applicant: Synaptics Incorporated
Inventor： Tracy Scott Dattalo , David Hoch
Abstract: A sensor pattern for capacitive sensing includes a first electrode and a multitude of second electrodes capacitively coupled to the first electrode. The first electrode includes a strip extending in a vertical direction across the sensor pattern. The multitude of second electrodes include a first subset and a second subset. The first subset of the multitude of second electrodes is arranged in a first column, the first column extending in a vertical direction. The second subset of the multitude of second electrodes is arranged in a second column, the second column extending in the vertical direction. The first subset and the second subset of the multitude of electrodes are disposed adjacent to the first electrode on opposing sides of the first electrode.
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3.发明授权公开(公告)号：US11409396B1
公开(公告)日：2022-08-09
申请号：US17306432
申请日：2021-05-03
Applicant: Synaptics Incorporated
Inventor： David Hoch
Abstract: A method for capacitive sensing includes: driving, by a processing system, a first plurality of transmitter electrodes using a first plurality of basis functions, wherein the first plurality of transmitter electrodes are part of a first set of non-intersecting electrodes which are arranged adjacently to one another in a first orientation; and obtaining, by the processing system, via a first plurality of receiver electrodes of the first set of non-intersecting electrodes, a first plurality of resulting signals corresponding to the first plurality of basis functions driven onto the first plurality of transmitter electrodes. The first plurality of resulting signals includes: capacitance information for nearest-neighbor pairs of electrodes of the first set of non-intersecting electrodes; capacitance information for second nearest-neighbor pairs of electrodes of the first set of non-intersecting electrodes; and/or capacitance information for third nearest-neighbor pairs of electrodes of the first set of non-intersecting electrodes.
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公开(公告)号：US10712863B2
公开(公告)日：2020-07-14
申请号：US16510761
申请日：2019-07-12
Applicant: Synaptics Incorporated
Inventor： David Hoch , Adam L. Schwartz
Abstract: An example input device for force and proximity sensing includes a plurality of touch electrodes comprising touch transmitter electrodes and touch receiver electrodes, a force electrode layer comprising a plurality of force electrodes, and a processing system. When operating in a proximity sensing mode, the processing system drives the touch transmitter electrodes with touch transmitter signals and determines a position of an input object, within a sensing region defined by the plurality of touch electrodes, based at least in part on a transcapacitive proximity measurement acquired from the touch receiver electrodes. When operating in a force sensing mode, the processing system drives the plurality of force electrodes with force transmitter signals and determines a force of the input object based at least in part on a transcapacitive force measurement based on a change in capacitance between the plurality of force electrodes and the plurality of touch electrodes.
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公开(公告)号：US10969916B2
公开(公告)日：2021-04-06
申请号：US16580531
申请日：2019-09-24
Applicant: Synaptics Incorporated
Inventor： David Hoch , Adam L. Schwartz , Joseph Kurth Reynolds
IPC: G06F3/044
Abstract: A capacitive sensing array includes a first transmitter electrode, a plurality of first receiver electrodes, a second transmitter electrode, and a plurality of second receiver electrodes disposed in a first row of the array. The first transmitter electrode is disposed in a first column of the array and is coupled to a first transmitter channel. The first receiver electrodes are disposed in a second column of the array, adjacent the first transmitter electrode, and are coupled to a respective one of a plurality of first receiver channels. The second transmitter electrode is disposed in a third column of the array and is coupled to a second transmitter channel. The second receiver electrodes are disposed in a fourth column of the array, adjacent the second transmitter electrode, and are coupled to a respective one of the first receiver channels.
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Patent Agency Ranking
公开(公告)号：US20200379590A1
公开(公告)日：2020-12-03
申请号：US16994460
申请日：2020-08-14
Applicant: Synaptics Incorporated
Inventor： Katayoun Goudarzi , John Weinerth , Derek Solven , David Hoch
Abstract: An input device including a sensing region is disclosed. The input device includes: sensor circuitry configured to: operate, during a first timeslot, electrodes as a first cluster; and operate, during a second timeslot, the electrodes as a second cluster, where the electrodes are aligned with an axis, and where at least one of the electrodes operates as a transmitter in the first cluster and as a receiver in the second cluster; and determination circuitry configured to: determine a first set of signal values associated with a first set of electrodes in the first cluster; determine a second set of signal values associated with a second set of electrodes in the second cluster; and generate a profile for the sensing region based on the first set of signal values and the second set of signal values, where the profile reflects an input object in the sensing region.
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公开(公告)号：US10725582B2
公开(公告)日：2020-07-28
申请号：US16104484
申请日：2018-08-17
Applicant: Synaptics Incorporated
Inventor： Matthew Stevenson , David Hoch
Abstract: The invention relates to a processing system. The processing system includes a determination module configured to make a determination that a low ground mass condition associated with an input device exists in an initial combination signal obtained from a sensor module using initial sensor settings. Based on the determination, adjusted sensor settings are determined, and an adjusted combination signal is obtained, using the adjusted sensor settings and, using the adjusted combination signal, object information for one or more input objects in a sensing region of the input device is obtained. The sensor module is configured to generate, using a first sensor electrode, a second sensor electrode, and the adjusted sensor settings, the adjusted combination signal. The adjusted combination signal includes effects of a transcapacitive coupling between the first sensor electrode and the second sensor electrode and effects of an absolute capacitive coupling between the second sensor electrode and the input object.
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公开(公告)号：US09753570B2
公开(公告)日：2017-09-05
申请号：US14527688
申请日：2014-10-29
Applicant: Synaptics Incorporated
Inventor： Joseph Kurth Reynolds , Tracy Scott Dattalo , David Hoch
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04107
Abstract: A processing system comprises a sensor module and a determination module. The sensor module comprises sensing circuitry coupled to sensor electrodes of a sensor electrode pattern. The sensor module is configured to: drive a modulated signal onto a first sensor electrode of the sensor electrode pattern; receive first resulting signals from the first sensor electrode; and receive second resulting signals from a second sensor electrode of the sensor electrode pattern. The second resulting signals comprise effects corresponding to the modulated signal, and the first resulting signals and the second resulting signals are simultaneously received. The determination module configured to determine a change in capacitive coupling between an input object and the first sensor electrode based on the first resulting signals and a change in capacitive coupling between the first and second sensor electrodes based on the second resulting signals.
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公开(公告)号：US09740348B2
公开(公告)日：2017-08-22
申请号：US14832380
申请日：2015-08-21
Applicant: Synaptics Incorporated
Inventor： David Hoch , Massoud Badaye
CPC classification number: G06F3/044
Abstract: A capacitive input device comprises a plurality of receiver electrodes and a plurality of transmitter electrodes. The plurality of receiver sensor electrodes is oriented substantially parallel to a first axis proximate to a sensing region of the capacitive input device. The plurality of transmitter sensor electrodes is oriented substantially parallel to a second axis proximate to the sensing region and configured to be capacitively coupled with the plurality of receiver sensor electrodes. At least one of a receiver sensor electrode of the plurality of receiver sensor electrodes and a transmitter sensor electrode of the plurality of transmitter sensor electrodes is disposed in a configuration forming multiple crossings with a line that is perpendicular to the first axis, the multiple crossings occurring proximate to the sensing region.
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公开(公告)号：US09703430B2
公开(公告)日：2017-07-11
申请号：US14319264
申请日：2014-06-30
Applicant: Synaptics Incorporated
Inventor： David Hoch
CPC classification number: G06F3/044 , G06F3/0416 , G06F2203/04108
Abstract: In an example, a processing system includes: a sensor module comprising sensor circuitry, the sensor module configured to: drive, during a first time period, a first sensor electrode of a first plurality of sensor electrodes for absolute capacitive sensing, a second sensor electrode of the first plurality of sensor electrodes with a reference signal, and at least one sensor electrode of a second plurality of sensor electrodes with a guard signal, to acquire first changes of capacitance between the first sensor electrode and at least one input object in proximity with the first sensor electrode; and a determination module configured to determine positional information for the at least one input object based at least in part on changes of capacitance acquired by the sensor module.
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