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公开(公告)号：US11513635B2
公开(公告)日：2022-11-29
申请号：US17716267
申请日：2022-04-08
Applicant: Synaptics Incorporated
Inventor： Daisuke Ito , Hiroshi Takeyama , Jonathan Losh
Abstract: A processing system for an input device comprises sensor circuitry. The sensor circuitry is configured to operate sensor electrodes for input sensing during a first sensing frame. During a first period of the first sensing frame the sensor circuitry is configured to drive a first portion of the sensor electrodes with a sensing signal, drive a second portion of the sensor electrodes with a guarding signal, and drive a third portion of the sensor electrodes with a reference signal. The guarding signal and the sensing signal have at least one characteristic in common selected from the group consisting of amplitude, phase and frequency. The third portion of the sensor electrodes overlaps a first gate line of a display panel selected for updating during the first period.
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公开(公告)号：US20180364833A1
公开(公告)日：2018-12-20
申请号：US15844758
申请日：2017-12-18
Applicant: Synaptics Incorporated
Inventor： Derek R. Solven , Matthew Stevenson , Robert J. Bolender , Jonathan Losh
CPC classification number: G06F3/044 , G06F3/0416 , G06F2203/04111 , G06F2203/04112 , G06K9/00013
Abstract: Sensor electrodes are coupled, in a first configuration, to input channels of a processing system. The sensor electrodes are used to acquire a measurement of current. In a second configuration that is different from the first configuration, the sensor electrodes are coupled to the input channels. The sensor electrodes in the second configuration are used to acquire a capacitive resulting signal. Positional information is determined using the current measurement and the capacitive resulting signal.
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公开(公告)号：US11256366B2
公开(公告)日：2022-02-22
申请号：US17107582
申请日：2020-11-30
Applicant: SYNAPTICS INCORPORATED
Inventor： Jonathan Losh , Dipankar Talukdar
Abstract: A processing system configured to receive a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The processing system is further configured to acquire, based on receipt of the first display control signal, first resulting signals from sensor electrodes electrically connected to the sensor driver by operating the sensor electrodes for a first type of input sensing during a first period overlapping with at least a portion of the non-display update period. Further, the processing system is configured to acquire, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period overlapping with at least a portion of the display update period.
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公开(公告)号：US20210294462A1
公开(公告)日：2021-09-23
申请号：US17339043
申请日：2021-06-04
Applicant: Synaptics Incorporated
Inventor： Nickolas V. Fotopoulos , Katayoun Goudarzi , Tracy Scott Dattalo , Joseph Kurth Reynolds , Jonathan Losh , Renuka Vidyut Shenoy , Derek Solven
Abstract: A system and method for capacitive sensing comprise acquiring first capacitive sensor data and second capacitive sensor data from a plurality of sensor electrodes, and determining positional information from one or more input objects based on the first capacitive sensor data and the second capacitive sensor data. The plurality of sensor electrodes are driven with transcapacitive sensing signals for capacitive sensing during one or more transcapacitive sensing blocks to acquire the first sensor data. Further, the plurality of sensor electrodes are operated for absolute capacitive sensing during one or more absolute capacitive sensing blocks to acquire the second capacitive sensor data.
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公开(公告)号：US20180143736A1
公开(公告)日：2018-05-24
申请号：US15355308
申请日：2016-11-18
Applicant: Synaptics Incorporated
Inventor： Jonathan Losh , John Weinerth , Derek Solven
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A processing system for reducing background capacitance associated with a touch surface. The processing system includes: transmitter circuitry that drives a transmitter electrode of the touch surface with a waveform; receiver circuitry that detects input in a sensing region of the touch surface based on a resulting signal from a receiver electrode of the touch surface; and offset reduction circuitry connected to the receiver circuitry that: subtracts, prior to completion of an integration period of the waveform, a first plurality of charge associated with background capacitance from the resulting signal using a capacitor; executes a first reload of the capacitor prior to completion of the integration period of the waveform; and subtracts, prior to completion of the integration period of the waveform, a second plurality of charge associated with background capacitance from the resulting signal using the capacitor after the first reload.
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Patent Agency Ranking
公开(公告)号：US09678599B2
公开(公告)日：2017-06-13
申请号：US15340806
申请日：2016-11-01
Applicant: SYNAPTICS INCORPORATED
Inventor： Jonathan Losh
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044 , G06F2203/04105 , G06F2203/04108
Abstract: Embodiments include a method, input device, and processing system for operating a plurality of sensor electrodes for capacitive sensing. The method includes acquiring a first capacitive partial profile by driving a first capacitive sensing signal onto a first sensor electrode of a first plurality of sensor electrodes while driving a second sensor electrode of the first plurality of sensor electrodes with a substantially constant voltage. The method further includes acquiring a second capacitive partial profile by driving a second capacitive sensing signal onto the second sensor electrode while driving the first sensor electrode with the substantially constant voltage, and determining a first capacitive profile based on at least the acquired first capacitive partial profile and the second capacitive partial profile.
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公开(公告)号：US11467694B2
公开(公告)日：2022-10-11
申请号：US17243192
申请日：2021-04-28
Applicant: Synaptics Incorporated
Inventor： Daisuke Ito , Jonathan Losh
IPC: G06F3/041 , G06F3/044 , G09G3/32 , G09G3/3291
Abstract: An input-display device includes a display screen disposed on a display substrate, the display screen including a multitude of display pixels. The input-display device further includes a multitude of capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a source driver circuit configured to generate a data voltage for driving a pixel circuit associated with one display pixel of the multitude of display pixels and determine a timing for a compensatory modulation of the data voltage. The timing is determined using a sensing waveform of the capacitive sensing. The source driver circuit is also configured to determine an amplitude of the compensatory modulation, generate a modulated data voltage by applying the compensatory modulation to the data voltage, and drive the pixel circuit using the modulated data voltage.
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公开(公告)号：US20220187976A1
公开(公告)日：2022-06-16
申请号：US17243192
申请日：2021-04-28
Applicant: Synaptics Incorporated
Inventor： Daisuke Ito , Jonathan Losh
IPC: G06F3/041 , G06F3/044 , G09G3/3291
Abstract: An input-display device includes a display screen disposed on a display substrate, the display screen including a multitude of display pixels. The input-display device further includes a multitude of capacitive sensing electrodes for capacitive sensing in a sensing region of the display screen. The input-display device also includes a source driver circuit configured to generate a data voltage for driving a pixel circuit associated with one display pixel of the multitude of display pixels and determine a timing for a compensatory modulation of the data voltage. The timing is determined using a sensing waveform of the capacitive sensing. The source driver circuit is also configured to determine an amplitude of the compensatory modulation, generate a modulated data voltage by applying the compensatory modulation to the data voltage, and drive the pixel circuit using the modulated data voltage.
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公开(公告)号：US10444922B2
公开(公告)日：2019-10-15
申请号：US15844758
申请日：2017-12-18
Applicant: Synaptics Incorporated
Inventor： Derek R. Solven , Matthew Stevenson , Robert J. Bolender , Jonathan Losh
Abstract: Sensor electrodes are coupled, in a first configuration, to input channels of a processing system. The sensor electrodes are used to acquire a measurement of current. In a second configuration that is different from the first configuration, the sensor electrodes are coupled to the input channels. The sensor electrodes in the second configuration are used to acquire a capacitive resulting signal. Positional information is determined using the current measurement and the capacitive resulting signal.
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公开(公告)号：US10162453B2
公开(公告)日：2018-12-25
申请号：US14883387
申请日：2015-10-14
Applicant: Synaptics Incorporated
Inventor： Jonathan Losh , Don Speck
Abstract: An input device includes a receiver electrode, a transmitter electrode and a processing system coupled to the receiver electrode and transmitter electrode. The processing system is configured to transmit a transmitter signal with the transmitter electrode during a first time period, inject a charge onto the receiver electrode during a second time period, and receive a resulting signal from the receiver electrode during a third time period. The resulting signal includes effects corresponding to the injected charge. The second time period and the third time period are non-overlapping.
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