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公开(公告)号：US12242683B2
公开(公告)日：2025-03-04
申请号：US18403522
申请日：2024-01-03
Applicant: Synaptics Incorporated
Inventor： Makoto Takeuchi , Hirokazu Hatayama , Masaaki Shiomura , Nobukazu Tanaka , Daisuke Ito , Takayuki Noto , Takashi Miyamoto
IPC: G06F3/041
Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.
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公开(公告)号：US20230315223A1
公开(公告)日：2023-10-05
申请号：US17712936
申请日：2022-04-04
Applicant: Synaptics Incorporated
Inventor： Makoto Takeuchi , Hirokazu Hatayama , Masaaki Shiomura , Nobukazu Tanaka , Daisuke Ito , Takayuki Noto , Takashi Miyamoto
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F3/04182
Abstract: A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.
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公开(公告)号：US11144162B1
公开(公告)日：2021-10-12
申请号：US17100768
申请日：2020-11-20
Applicant: Synaptics Incorporated
Inventor： Nobukazu Tanaka , Takayuki Noto
Abstract: A method for testing a sensor electrode is provided. The method includes acquiring a first resulting signal from a sensor electrode. The method further includes determining an in-phase response and a quadrature-phase response through a quadrature demodulation based on the first resulting signal. The method further includes detecting a defect of the sensor electrode based on the in-phase response and the quadrature-phase response.
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公开(公告)号：US11126303B2
公开(公告)日：2021-09-21
申请号：US17062529
申请日：2020-10-02
Applicant: SYNAPTICS INCORPORATED
Inventor： Xueyong Yang , Tetsuo Tanemura , Nobukazu Tanaka , Takayuki Noto
Abstract: A semiconductor device comprises driver circuitry, an analog-digital (AD) converter, and processing circuitry. The driver circuitry is configured to supply a drive signal to a sensor array in a sensing frame comprising 2N bursts, N being an integer of two or more. The mixer circuitry is configured to modulate a plurality of carrier waves with a plurality of sensing signals corresponding to capacitances of a plurality of sensing electrodes of the sensor array, respectively, to output a plurality of mixer outputs. A number of the plurality of sensing electrodes is 2N−1 or 2N. The AD converter is configured to perform AD conversion on a sum signal of the plurality of mixer outputs. The processing circuitry is configured to detect an object based on the output of the AD converter.
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公开(公告)号：US10509595B2
公开(公告)日：2019-12-17
申请号：US15842543
申请日：2017-12-14
Applicant: SYNAPTICS INCORPORATED
Inventor： Nobukazu Tanaka , Takayuki Noto , Masaaki Shiomura
IPC: G06F13/24 , G06F1/08 , G06F3/06 , G06F13/40 , G06F3/0488 , G06F9/4401 , G06F3/041 , G09G5/00
Abstract: A semiconductor device including a first data terminal, a data output terminal, a control circuitry, first and second communication interfaces, and a bridge circuitry. The bridge circuitry is configured to operate a normal mode and a bridge mode. In the normal mode, the data output terminal is connected to the second communication interface circuitry, and in the bridge mode, the first data terminal is connected to the data output terminal in a bridge mode.
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Patent Agency Ranking
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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公开(公告)号：US12169608B2
公开(公告)日：2024-12-17
申请号：US18502139
申请日：2023-11-06
Applicant: Synaptics Incorporated
Inventor： Masaaki Shiomura , Hirokazu Hatayama , Makoto Takeuchi , Takayuki Noto , Nobukazu Tanaka , Daisuke Ito , Tomohiro Hirakawa
Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.
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公开(公告)号：US20240069671A1
公开(公告)日：2024-02-29
申请号：US18502139
申请日：2023-11-06
Applicant: Synaptics Incorporated
Inventor： Masaaki Shiomura , Hirokazu Hatayama , Makoto Takeuchi , Takayuki Noto , Nobukazu Tanaka , Daisuke Ito , Tomohiro Hirakawa
CPC classification number: G06F3/04166 , G06F3/0442 , G09G3/20 , G09G2310/08 , G09G2330/021 , G09G2340/0435
Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit configured to receive an indication of a transition from a first image refresh rate to a second image refresh rate, wherein the first image refresh rate is greater than a beacon signal rate and the second image refresh rate is equal to or lower than the beacon signal rate. The proximity sensing panel is also configured to align transmitting a beacon signal on the proximity sensing panel to a non-refresh period corresponding to the second refresh rate.
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公开(公告)号：US11861103B2
公开(公告)日：2024-01-02
申请号：US17717780
申请日：2022-04-11
Applicant: Synaptics Incorporated
Inventor： Masaaki Shiomura , Hirokazu Hatayama , Makoto Takeuchi , Takayuki Noto , Nobukazu Tanaka , Daisuke Ito , Tomohiro Hirakawa
CPC classification number: G06F3/04166 , G06F3/0442 , G09G3/20 , G09G2310/08 , G09G2330/021 , G09G2340/0435
Abstract: In general, in one aspect, one or more embodiments relate to an input device that includes a proximity sensing panel including sensor electrodes, and a proximity sensing circuit. The proximity sensing circuit is configured to determine that an image refresh rate to an equal or lower frequency than a beacon signal rate. The input-display device is configured to align transmitting a beacon signal on proximity sensing panel to during non-refresh period of a display or perform an additional image refresh frame on the display panel immediately before a next Vsync signal and a corresponding non-refresh period.
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10.发明公开公开(公告)号：US20230315227A1
公开(公告)日：2023-10-05
申请号：US17707692
申请日：2022-03-29
Applicant: Synaptics Incorporated
Inventor： Daisuke Ito , Nobukazu Tanaka , Masaaki Shiomura
CPC classification number: G06F3/04166 , G09G2310/027 , G06F2203/04101 , G09G5/10
Abstract: An input-display device includes a display panel, sensor electrodes, and a display driver. The display panel includes source lines. The sensor electrodes are capacitively coupled to the source lines. The display driver is configured to receive image data. The display driver is further configured to process the image data in response to a detection of a horizontal stripe pattern in an image corresponding to the image data. The display driver is further configured to drive the source lines based at least in part on the processed image data.
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