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公开(公告)号：US10379688B2
公开(公告)日：2019-08-13
申请号：US15623086
申请日：2017-06-14
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev
Abstract: Disclosed herein include a processing system, an input device, and methods for transcapacitive sensing. In one example, a processing system is configured to reduce the capacitive coupling between sensor electrodes arranged in a column of sensor electrodes and routing traces running below the sensor electrodes by isolating a receiver electrode selected from the sensor electrodes in the column from the other sensor electrodes in the column by applying a signal that is not modulated relative to the receiver electrode on sensor electrodes that are immediately adjacent the receiver electrode and not being utilized as a transmitter electrode.
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公开(公告)号：US20190196629A1
公开(公告)日：2019-06-27
申请号：US15850759
申请日：2017-12-21
Applicant: Synaptics Incorporated
Inventor： Petr Shepelev , Eric Bohannon
Abstract: An input device may include various sensor electrodes that define various sensor pixels. The input device may further include a processing system coupled to the sensor electrodes. The processing system may obtain a first resulting signal and a second resulting signal from the sensor electrodes. The processing system may determine, using the first resulting signal, an in-phase estimate of a phase delay at a sensor pixel among the sensor pixels. The processing system may determine, using the second resulting signal, a quadrature estimate of the phase delay at the sensor pixel. The processing system may determine, based at least in part on the in-phase estimate and the quadrature estimate, a phase baseline estimate of the sensor pixels.
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公开(公告)号：US10261619B2
公开(公告)日：2019-04-16
申请号：US14986088
申请日：2015-12-31
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev , Arnulf Graf
Abstract: Techniques for determining force applied by an input object in a sensing region of an input device are provided. The techniques generally include driving a plurality of sensor electrodes within a sensing region to acquire sensor data, generating a first histogram based on the sensor data, the first histogram including a plurality of bins each having an associated value, and based on the values associated with at least a subset of the plurality of bins of the first histogram, determining force information for an input object.
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公开(公告)号：US10228805B2
公开(公告)日：2019-03-12
申请号：US15349234
申请日：2016-11-11
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev
Abstract: An input device and related method and processing system are disclosed. The input device comprises a sensing assembly attached with a conductive reference element, the sensing assembly comprising a plurality of sensor electrodes capacitively coupled with the conductive reference element and defining a surface. The input device further comprises a switching element configured to couple the conductive reference element with a selected one of a plurality of reference voltages. A first capacitive measurement is acquired while the conductive reference element is coupled with a first reference voltage, and a second capacitive measurement is acquired while the conductive reference element is coupled with a second reference voltage.
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95.发明授权公开(公告)号：US10209845B2
公开(公告)日：2019-02-19
申请号：US16107552
申请日：2018-08-21
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev , David Sabo , Joseph Kurth Reynolds
Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving electrodes corresponding to pixels in a display line. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a touch area. To do this, the input device uses common electrodes for both updating the display and performing capacitive sensing, and interleaves periods of capacitive sensing between periods of updating the display lines (and pixels) based on a display frame. To avoid noise and mitigate interference during capacitive sensing, the input device may change the capacitive frame rate relative to the display frame rate based on measurements of interference. The changed capacitive frame rate may result in re-timed periods of capacitive sensing based on each display frame.
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Patent Agency Ranking
公开(公告)号：US10088942B2
公开(公告)日：2018-10-02
申请号：US15088011
申请日：2016-03-31
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev , Thomas Mackin
Abstract: Techniques for obtaining force-based data of an input device are provided. The techniques include driving sensor electrodes in transcapacitive mode and in absolute capacitive mode, obtaining profiles for each of the modes, scaling the transcapacitive profile, and subtracting the scaled transcapacitive profile from the profile for absolute capacitive sensing. The result of this subtraction is force-based data that indicates the degree of force with that input object applies to the input device. These techniques may be used with an input device in which a plurality of sensor electrodes are divided into two or more segments. Independent sets of force-based data can be obtained for each segment, which allows for determination of a location associated with each set of force-based data.
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公开(公告)号：US20180267660A1
公开(公告)日：2018-09-20
申请号：US15906892
申请日：2018-02-27
Applicant: Synaptics Incorporated
Inventor： Petr Shepelev , Kurth Reynolds
IPC: G06F3/041 , G06F3/044 , G06F3/0488 , G02F1/1333
CPC classification number: G06F3/0414 , G02F1/13338 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F3/0487 , G06F3/0488 , G06F2203/04105
Abstract: A processing system includes a sensor module and a determination module. The sensor module is configured to perform a capacitive scan using electrodes disposed in a display device in a first area. The determination module is configured to determine, using the capacitive scan, a bending response of an input surface covering the first area and a second area. The bending response results from an input force being applied to the input surface in the second area. The determination module is further configured to determine, using the bending response, a force estimate of the input force, and determine, based on the force estimate, whether to perform an interface action.
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98.发明授权公开(公告)号：US10073568B2
公开(公告)日：2018-09-11
申请号：US13628040
申请日：2012-09-27
Applicant: Synaptics Incorporated
Inventor： Petr Shepelev , David Sabo , Joseph Kurth Reynolds
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0418 , G06F3/045
Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving electrodes corresponding to pixels in a display line. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a touch area. To do this, the input device uses common electrodes for both updating the display and performing capacitive sensing, and interleaves periods of capacitive sensing between periods of updating the display lines (and pixels) based on a display frame. To avoid noise and mitigate interference during capacitive sensing, the input device may change the capacitive frame rate relative to the display frame rate based on measurements of interference. The changed capacitive frame rate may result in re-timed periods of capacitive sensing based on each display frame.
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公开(公告)号：US10073550B2
公开(公告)日：2018-09-11
申请号：US13722225
申请日：2012-12-20
Applicant: Synaptics Incorporated
Inventor： Petr Shepelev , David Sabo
CPC classification number: G06F3/0412 , G06F3/044
Abstract: Embodiments of the present invention generally provide a processing system for a display device integrated with a capacitive sensing device. The processing system includes a driver module having driver circuitry and coupled to a sub-pixel with a first source line and a first common electrode. The driver module is configured to simultaneously update the sub-pixel by driving the first source line with a first voltage, and drive the first common electrode for capacitive sensing by modulating the first common electrode between a second voltage and a third voltage. The processing system further includes a receiver module coupled to a plurality of receiver electrodes. The receiver module is configured to receive resulting signals from the receiver electrodes while the first common electrode is modulated between the second voltage and the third voltage. The processing system further includes a determination module configured to determine positional information based on the resulting signals.
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公开(公告)号：US10067587B2
公开(公告)日：2018-09-04
申请号：US14983218
申请日：2015-12-29
Applicant: SYNAPTICS INCORPORATED
Inventor： Petr Shepelev
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044 , H01L27/323
Abstract: An example display device includes an active portion having a plurality of display electrodes, an inactive portion, a plurality of source lines disposed at least partially in the active portion, and a plurality of routing traces. The routing traces include a first routing trace, at least a first portion thereof being disposed in a first metal layer, parallel to a first source line of the plurality of source lines and in the active portion. The routing traces further include a second routing trace, a first portion thereof disposed parallel to the first routing trace in the first metal layer and in the active portion, a second portion of the second routing trace disposed in a second metal layer in the inactive portion and crossing the first routing trace, the second routing trace coupled to a first display electrode of the plurality of display electrodes through a first via.
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