Patents by Inventor Masaaki SHIOMURA
Masaaki SHIOMURA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240134474Abstract: 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.Type: ApplicationFiled: January 3, 2024Publication date: April 25, 2024Inventors: Makoto Takeuchi, Hirokazu Hatayama, Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Takayuki Noto, Takashi Miyamoto
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Publication number: 20240069671Abstract: 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.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Inventors: Masaaki Shiomura, Hirokazu Hatayama, Makoto Takeuchi, Takayuki Noto, Nobukazu Tanaka, Daisuke Ito, Tomohiro Hirakawa
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Patent number: 11907453Abstract: 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.Type: GrantFiled: April 4, 2022Date of Patent: February 20, 2024Assignee: Synaptics IncorporatedInventors: Makoto Takeuchi, Hirokazu Hatayama, Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Takayuki Noto, Takashi Miyamoto
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Patent number: 11861103Abstract: 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.Type: GrantFiled: April 11, 2022Date of Patent: January 2, 2024Assignee: Synaptics IncorporatedInventors: Masaaki Shiomura, Hirokazu Hatayama, Makoto Takeuchi, Takayuki Noto, Nobukazu Tanaka, Daisuke Ito, Tomohiro Hirakawa
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Publication number: 20230418417Abstract: Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen. The first touch sensing waveform generates on the display a first touch-to-display noise pattern of touch-to-display noise artifacts. The second touch sensing waveform generates on the display a second touch-to-display noise pattern of touch-to-display noise artifacts. The second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.Type: ApplicationFiled: September 8, 2023Publication date: December 28, 2023Inventors: Masaaki Shiomura, Daisuke Ito, Hei-Wei Li
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Patent number: 11853510Abstract: Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen. The first touch sensing waveform generates on the display a first touch-to-display noise pattern of touch-to-display noise artifacts. The second touch sensing waveform generates on the display a second touch-to-display noise pattern of touch-to-display noise artifacts. The second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.Type: GrantFiled: November 12, 2021Date of Patent: December 26, 2023Assignee: Synaptics IncorporatedInventors: Masaaki Shiomura, Daisuke Ito, He-Wei Li
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Patent number: 11816285Abstract: 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.Type: GrantFiled: March 29, 2022Date of Patent: November 14, 2023Assignee: Synaptics IncorporatedInventors: Daisuke Ito, Nobukazu Tanaka, Masaaki Shiomura
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Publication number: 20230325027Abstract: 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.Type: ApplicationFiled: April 11, 2022Publication date: October 12, 2023Applicant: Synaptics IncorporatedInventors: Masaaki Shiomura, Hirokazu Hatayama, Makoto Takeuchi, Takayuki Noto, Nobukazu Tanaka, Daisuke Ito, Tomohiro Hirakawa
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Publication number: 20230315223Abstract: 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.Type: ApplicationFiled: April 4, 2022Publication date: October 5, 2023Applicant: Synaptics IncorporatedInventors: Makoto Takeuchi, Hirokazu Hatayama, Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Takayuki Noto, Takashi Miyamoto
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Publication number: 20230315227Abstract: 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.Type: ApplicationFiled: March 29, 2022Publication date: October 5, 2023Applicant: Synaptics IncorporatedInventors: Daisuke Ito, Nobukazu Tanaka, Masaaki Shiomura
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Publication number: 20230152925Abstract: Driving a display of an input-display device includes generating, during a first display frame, a first touch sensing waveform to be applied to a touch screen of the display, and generating, during a second display frame, a second touch sensing waveform to be applied to the touch screen. The first touch sensing waveform generates on the display a first touch-to-display noise pattern of touch-to-display noise artifacts. The second touch sensing waveform generates on the display a second touch-to-display noise pattern of touch-to-display noise artifacts. The second touch-to-display noise pattern mitigates the first touch-to-display noise pattern.Type: ApplicationFiled: November 12, 2021Publication date: May 18, 2023Applicant: Synaptics IncorporatedInventors: Masaaki Shiomura, Daisuke Ito, He-Wei Li
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Patent number: 11592937Abstract: A display controller includes a touch sensing controller configured to drive sensing electrodes with a touch sensing waveform that includes multiple modulations. The touch sensing controller is further configured to halt driving the plurality of sensing electrodes when a number of the modulations satisfies a selected sub-burst size. The touch sensing waveform is synchronized to an instance of a horizontal sync signal.Type: GrantFiled: March 8, 2022Date of Patent: February 28, 2023Assignee: Synaptics IncorporatedInventors: Masaaki Shiomura, Nobukazu Tanaka, Daisuke Ito, Sung-Sool Lee
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Patent number: 11335295Abstract: A processing system includes a timing controller and source driver circuitry. The timing controller is configured to stop scanning of a plurality of gate lines of a display panel in response to a detection of a communication failure between the processing system and a controller. The source driver circuitry is configured to update a plurality of display elements of the display panel to cause a black display in response to expiration of a time limit after the detection of the communication failure. The timing controller may be further configured to resume the scanning of the plurality of gate lines in response to the expiration of the time limit.Type: GrantFiled: June 4, 2021Date of Patent: May 17, 2022Assignee: Synaptics IncorporatedInventors: Tomohiro Hirakawa, Takayuki Noto, Masaaki Shiomura, Hirokazu Hatayama, Yoriaki Miyoshi, Keiichi Yoshida, Hiroshi Shimura
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Patent number: 10509595Abstract: 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.Type: GrantFiled: December 14, 2017Date of Patent: December 17, 2019Assignee: SYNAPTICS INCORPORATEDInventors: Nobukazu Tanaka, Takayuki Noto, Masaaki Shiomura
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Publication number: 20180173465Abstract: 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.Type: ApplicationFiled: December 14, 2017Publication date: June 21, 2018Inventors: Nobukazu TANAKA, Takayuki NOTO, Masaaki SHIOMURA
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Publication number: 20180107317Abstract: A display driver includes: a plurality of source output terminals configured to be connected to a plurality of source input terminals of a display panel; a source driver circuitry configured to generate source signals to the source input terminals; a plurality of interconnections connected to a capacitance detection circuitry for touch sensing in a sensing region of the display panel, and a selector. The selector is configured to selectively connect the source output terminals to the source driver circuitry and the interconnections.Type: ApplicationFiled: October 12, 2017Publication date: April 19, 2018Inventors: Nobukazu TANAKA, Takayuki NOTO, Masaaki SHIOMURA
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Patent number: 9471173Abstract: In an example, a processing system for a capacitive input device includes: a sensor module including sensor circuitry, the sensor module configured to: operate a plurality of sensor electrodes to determine input in a sensing region of the input device; a determination module configured to: determine that an input surface of the input device is at least partially interfacing a uniform conductor; and determine a displacement of at least part of the uniform conductor from a region of the input surface by an input object based at least in part on a change in capacitance measured on a subset of the plurality of sensor electrodes; determine at least one of a presence or position of the at least one input object on the input surface based on the determined displacement.Type: GrantFiled: June 30, 2014Date of Patent: October 18, 2016Assignee: SYNAPTICS INCORPORATEDInventors: Tom Vandermeijden, Masaaki Shiomura
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Publication number: 20150378496Abstract: In an example, a processing system for a capacitive input device includes: a sensor module including sensor circuitry the sensor module configured to: operate a plurality of sensor electrodes to determine input in a sensing region of the input device; a determination module configured to: determine that an input surface of the input device is at least partially interfacing a uniform conductor; and determine a displacement of at least part of the uniform conductor from a region of the input surface by an input object based at least in part on a change in capacitance measured on a subset of the plurality of sensor electrodes; determine at least one of a presence or position of the at least one input object on the input surface based on the determined displacement.Type: ApplicationFiled: June 30, 2014Publication date: December 31, 2015Inventors: Tom VANDERMEIJDEN, Masaaki SHIOMURA