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公开(公告)号：US11556212B2
公开(公告)日：2023-01-17
申请号：US17170074
申请日：2021-02-08
Applicant: Synaptics Incorporated
Inventor： Shinobu Nohtomi
Abstract: A processing system includes a level shifter, a drive circuit, and a capacitive sensing circuit. The level shifter is configured to generate a first level-shifted output corresponding to a graylevel value and a second level-shifted output corresponding to capacitive sensing control data. The drive circuit is configured to generate an output voltage based at least in part on the first level-shifted output. The capacitive sensing circuit is configured to receive a resulting signal from a sensor electrode and generate, based at least in part on the second level-shifted output, a capacitive sensing output corresponding to the resulting signal.
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公开(公告)号：US10372248B2
公开(公告)日：2019-08-06
申请号：US15297540
申请日：2016-10-19
Applicant: SYNAPTICS INCORPORATED
Inventor： Kazuya Endo , Shinobu Nohtomi , Nobukazu Tanaka , Tomohiro Hirakawa , Hiroshi Takeyama , Takayuki Noto , Petr Shepelev
Abstract: The semiconductor device is intended for connection with an in-cell type display touch panel having a plurality of common electrodes, a reference voltage for display is applied to the common electrodes in a display drive period, and the common electrodes serve as sensor electrodes in a touch detection period. The semiconductor device includes a DC level shift circuit operable to shift the DC level of a toggle signal output by a toggle drive circuit to the reference voltage. The semiconductor device supplies the reference voltage to the common electrodes of the display touch panel in the display drive period, and performs a guarding action in which at least a part of the plurality of common electrodes is supplied with a toggle signal shifted in DC level in the touch detection period.
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Patent Agency Ranking
公开(公告)号：US11521526B2
公开(公告)日：2022-12-06
申请号：US16584301
申请日：2019-09-26
Applicant: SYNAPTICS INCORPORATED
Inventor： Shinobu Nohtomi , Sosuke Tsuji
IPC: G09G3/00
Abstract: A display driver comprises a decoder, a first source amplifier and a logic circuitry. The decoder is configured to output a grayscale voltage corresponding to an image data. The first source amplifier is configured to output a first source output voltage corresponding to the grayscale voltage to a first external output terminal. The logic circuitry is configured to generate fault detection data for fault detection of a test object connected to the first external output terminal. The fault detection data is based on a comparison output signal generated based on a comparison between a reference voltage and a voltage on the first external output terminal. The comparison is performed by the first source amplifier.
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公开(公告)号：US20220252648A1
公开(公告)日：2022-08-11
申请号：US17170074
申请日：2021-02-08
Applicant: Synaptics Incorporated
Inventor： Shinobu Nohtomi
Abstract: A processing system includes a level shifter, a drive circuit, and a capacitive sensing circuit. The level shifter is configured to generate a first level-shifted output corresponding to a graylevel value and a second level-shifted output corresponding to capacitive sensing control data. The drive circuit is configured to generate an output voltage based at least in part on the first level-shifted output. The capacitive sensing circuit is configured to receive a resulting signal from a sensor electrode and generate, based at least in part on the second level-shifted output, a capacitive sensing output corresponding to the resulting signal.
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公开(公告)号：US11209926B2
公开(公告)日：2021-12-28
申请号：US17142462
申请日：2021-01-06
Applicant: Synaptics Incorporated
Inventor： Shinobu Nohtomi , Nobukazu Tanaka , Takayuki Noto
IPC: G06F3/041 , H03K17/955 , G06F3/044 , G09G3/20 , G09G3/3225 , G09G3/36
Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.
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公开(公告)号：US20210157434A1
公开(公告)日：2021-05-27
申请号：US17142462
申请日：2021-01-06
Applicant: Synaptics Incorporated
Inventor： Shinobu Nohtomi , Nobukazu Tanaka , Takayuki Noto
IPC: G06F3/041 , G09G3/20 , H03K17/955 , G06F3/044
Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.
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公开(公告)号：US10928944B1
公开(公告)日：2021-02-23
申请号：US16692755
申请日：2019-11-22
Applicant: SYNAPTICS INCORPORATED
Inventor： Shinobu Nohtomi , Nobukazu Tanaka , Takayuki Noto
IPC: G06F3/041 , H03K17/955 , G06F3/044 , G09G3/20 , G09G3/3225 , G09G3/36
Abstract: A processing system comprises a first source amplifier and an analog front end. The first source amplifier comprises a first input electrically connectable to a first sensor electrode of a display panel and configured to generate a first drive signal based on a first grayscale voltage corresponding to a first pixel data and generate a first comparison output signal based on a first sensing signal from the first sensor electrode and a reference voltage. The analog front end is configured to generate a first digital detection data used for proximity sensing based on the first comparison output signal outputted from the first source amplifier.
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