Patents by Inventor Atsushi Shikata
Atsushi Shikata 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).
-
Patent number: 11978386Abstract: A display system includes a first memory and a display driver. The display system is configured to control the first memory to receive compensation information from the first memory with a first frequency and generate data signals for image data to be displayed on a display panel. The generation of the data signals comprises performing a compensation for the data signals based on the compensation information received from the first memory. The display driver is further configured to update pixels of the display panel with the data signals during an active display state. The display driver is further configured to generate updated compensation information based at least in part on the image data and the compensation information received from the first memory and transmit the updated compensation information to the first memory during the active display state with a second frequency lower than the first frequency.Type: GrantFiled: February 24, 2023Date of Patent: May 7, 2024Assignee: Synaptics IncorporatedInventors: Atsushi Shikata, Takashi Uehara, Shigeru Ota
-
Patent number: 11726653Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.Type: GrantFiled: December 23, 2021Date of Patent: August 15, 2023Assignee: Synaptics IncorporatedInventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
-
Publication number: 20230222958Abstract: A display system includes a first memory and a display driver. The display system is configured to control the first memory to receive compensation information from the first memory with a first frequency and generate data signals for image data to be displayed on a display panel. The generation of the data signals comprises performing a compensation for the data signals based on the compensation information received from the first memory. The display driver is further configured to update pixels of the display panel with the data signals during an active display state. The display driver is further configured to generate updated compensation information based at least in part on the image data and the compensation information received from the first memory and transmit the updated compensation information to the first memory during the active display state with a second frequency lower than the first frequency.Type: ApplicationFiled: February 24, 2023Publication date: July 13, 2023Applicant: Synaptics IncorporatedInventors: Atsushi Shikata, Takashi Uehara, Shigeru Ota
-
Patent number: 11635845Abstract: A display driver comprises a touch controller configured to perform touch sensing on a display panel during a vertical sync period. A first field of the vertical sync period comprises a display period and a touch sensing period following the display period. A start timing of the touch sensing period is controlled by an internal clock signal. A first counter is configured to, responsive to completion of the touch sensing, start a counting operation in synchronization with the internal clock signal. Gate control signal generator circuitry is configured to control a gate driver that is configured to drive a plurality of gate lines of the display panel. A gate line that is to be driven first to a high level during a second field following the first field is driven to the high level responsive to a count value of the first counter during the first field.Type: GrantFiled: September 29, 2020Date of Patent: April 25, 2023Assignee: Synaptics Japan GKInventors: Makoto Takeuchi, Shigeru Ota, Atsushi Shikata, Kentaro Suzuki, Jiro Shimbo
-
Patent number: 11615735Abstract: A display system includes a first memory and a display driver. The display system is configured to control the first memory to receive compensation information from the first memory with a first slew rate and generate data signals for image data to be displayed on a display panel. The generation of the data signals comprises performing a compensation for the data signals based on the compensation information received from the first memory. The display driver is further configured to update pixels of the display panel with the data signals during an active display state. The display driver is further configured to generate updated compensation information based at least in part on the image data and the compensation information received from the first memory and transmit the updated compensation information to the first memory during the active display state with a second slew rate lower than the first slew rate.Type: GrantFiled: August 31, 2022Date of Patent: March 28, 2023Assignee: Synaptics IncorporatedInventors: Atsushi Shikata, Takashi Uehara, Shigeru Ota
-
Publication number: 20230073842Abstract: A display system includes a first memory and a display driver. The display system is configured to control the first memory to receive compensation information from the first memory with a first slew rate and generate data signals for image data to be displayed on a display panel. The generation of the data signals comprises performing a compensation for the data signals based on the compensation information received from the first memory. The display driver is further configured to update pixels of the display panel with the data signals during an active display state. The display driver is further configured to generate updated compensation information based at least in part on the image data and the compensation information received from the first memory and transmit the updated compensation information to the first memory during the active display state with a second slew rate lower than the first slew rate.Type: ApplicationFiled: August 31, 2022Publication date: March 9, 2023Applicant: Synaptics IncorporatedInventors: Atsushi Shikata, Takashi Uehara, Shigeru Ota
-
Publication number: 20220113811Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.Type: ApplicationFiled: December 23, 2021Publication date: April 14, 2022Inventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
-
Patent number: 11256413Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.Type: GrantFiled: February 10, 2020Date of Patent: February 22, 2022Assignee: Synaptics IncorporatedInventors: Tetsuo Tanemura, Xueyong Yang, Atsushi Shikata, Takashi Imai, Atsushi Maruyama
-
Patent number: 11194420Abstract: A processing system comprises interface circuitry and a timing controller. The interface circuitry is configured to receive a vertical sync period indicator that indicates a start of an external vertical sync period. The timing controller is configured to, in response to a change in a display frame rate, control timing of a display drive operation and a proximity sensing operation to maintain a proximity sensing frame rate based on input timing of the vertical sync period indicator to the interface circuitry. The processing system is configured to supply drive signals to display elements of a display panel in the display drive operation and acquire sensing signals from sensor electrodes of the display panel in the proximity sensing operation.Type: GrantFiled: November 19, 2019Date of Patent: December 7, 2021Assignee: Synaptics IncorporatedInventors: Atsushi Shikata, Shigeru Ota, Makoto Takeuchi, Jiro Shimbo, Kentaro Suzuki
-
Patent number: 11151941Abstract: A display driver includes signal supply circuitry and a power source controller. The signal supply circuitry is configured to update a display panel during a refresh period and not update the display panel during a non-refresh period that follows the refresh period. The power source controller is configured to modify a high-side power source voltage supplied to the display panel at least during the non-refresh period.Type: GrantFiled: June 5, 2020Date of Patent: October 19, 2021Assignee: Synaptics IncorporatedInventors: Atsushi Shikata, Kazuhiro Okamura, Hirobumi Furihata, Shigeru Ota, Makoto Takeuchi
-
Publication number: 20210247896Abstract: A method for displaying aerial images includes detecting a capacitive response of a non-contact gesture made by a user proximate to a touch sensing enabled display screen, and in response to detecting the non-contact gesture, displaying one or more images in a three-dimensional (3D) space proximate to the display screen.Type: ApplicationFiled: February 10, 2020Publication date: August 12, 2021Inventors: Tetsuo TANEMURA, Xueyong YANG, Atsushi SHIKATA, Takashi IMAI, Atsushi MARUYAMA
-
Publication number: 20210149540Abstract: A processing system comprises interface circuitry and a timing controller. The interface circuitry is configured to receive a vertical sync period indicator that indicates a start of an external vertical sync period. The timing controller is configured to, in response to a change in a display frame rate, control timing of a display drive operation and a proximity sensing operation to maintain a proximity sensing frame rate based on input timing of the vertical sync period indicator to the interface circuitry. The processing system is configured to supply drive signals to display elements of a display panel in the display drive operation and acquire sensing signals from sensor electrodes of the display panel in the proximity sensing operation.Type: ApplicationFiled: November 19, 2019Publication date: May 20, 2021Inventors: Atsushi SHIKATA, Shigeru OTA, Makoto TAKEUCHI, Jiro SHIMBO, Kentaro SUZUKI
-
Publication number: 20210011575Abstract: A display driver comprises a touch controller configured to perform touch sensing on a display panel during a vertical sync period. A first field of the vertical sync period comprises a display period and a touch sensing period following the display period. A start timing of the touch sensing period is controlled by an internal clock signal. A first counter is configured to, responsive to completion of the touch sensing, start a counting operation in synchronization with the internal clock signal. Gate control signal generator circuitry is configured to control a gate driver that is configured to drive a plurality of gate lines of the display panel. A gate line that is to be driven first to a high level during a second field following the first field is driven to the high level responsive to a count value of the first counter during the first field.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Inventors: Makoto TAKEUCHI, Shigeru OTA, Atsushi SHIKATA, Kentaro SUZUKI, Jiro SHIMBO
-
Patent number: 10872555Abstract: A circuit apparatus is provided for driving source electrodes of a display panel based on image data and to control a backlight of the display panel. For example, the circuit apparatus includes a display drive (DD) circuit having a parameter generation (PG) part and an image data conversion (IDC) part. The PG part is operable to generate an image data-conversion parameter and a backlight control parameter based on a brightness distribution of the image data of one frame. The IDC part is operable to convert the image data based on the image data-conversion parameter. The DD circuit is operable to output source signals generated based on the converted image data and output, control the backlight based on the backlight control parameter, and stop an action of the parameter generation part in response to no change in the image data of one frame from image data of a preceding frame being detected.Type: GrantFiled: October 20, 2015Date of Patent: December 22, 2020Assignee: Synaptics Japan GKInventor: Atsushi Shikata
-
Patent number: 10802645Abstract: A display driver comprises a touch controller configured to perform touch sensing on a display panel during a vertical sync period. A first field of the vertical sync period comprises a display period and a touch sensing period following the display period. A start timing of the touch sensing period is controlled by an internal clock signal. A first counter is configured to, responsive to completion of the touch sensing, start a counting operation in synchronization with the internal clock signal. Gate control signal generator circuitry is configured to control a gate driver that is configured to drive a plurality of gate lines of the display panel. A gate line that is to be driven first to a high level during a second field following the first field is driven to the high level responsive to a count value of the first counter during the first field.Type: GrantFiled: September 13, 2018Date of Patent: October 13, 2020Assignee: Synaptics Japan GKInventors: Makoto Takeuchi, Shigeru Ota, Atsushi Shikata, Kentaro Suzuki, Jiro Shimbo
-
Patent number: 10768741Abstract: A semiconductor device configured to drive a display panel in a display period, and perform touch sensing on the display panel in a touch sensing period after the display period. In a last horizontal sync period of the display period, the semiconductor device drives a first source line with a drive voltage of a first polarity, and a second source line with a drive voltage of a second polarity different from the first polarity. is the semiconductor is configured to output a first dummy pulse having first polarity and a voltage level based on the second display data to the first source line in a transition period between the display period and the touch sensing period.Type: GrantFiled: May 17, 2018Date of Patent: September 8, 2020Assignee: Creative Legend Semiconductor (Hong Kong) LimitedInventors: Kazuya Endo, Shinobu Nohtomi, Atsushi Shikata, Kentaro Suzuki
-
Patent number: 10643515Abstract: A display driver includes: a memory comprising a plurality of memory regions each configured to store image data for one line of an image displayed in a frame; and control circuitry configured to adjust a number of in-use memory regions of the plurality of memory regions used to store the image data. The control circuitry is further configured to control the memory so that image data for respective lines of the image are cyclically stored in the in-use memory regions in a fixed order.Type: GrantFiled: September 20, 2018Date of Patent: May 5, 2020Assignee: Synaptics Japan GKInventors: Kentaro Suzuki, Atsushi Shikata, Jiro Shimbo, Makoto Takeuchi, Shigeru Ota
-
Patent number: 10504478Abstract: A semiconductor device has a first mode in which the semiconductor device is used alone and a second mode in which the semiconductor device is used in combination with another semiconductor device. In case that one driven device is driven using the semiconductor device in the first mode and the second mode, power supply lines are caused to allow electrical conduction to each other outside of each semiconductor device in order to cancel errors of operation power supply voltages of each semiconductor device. In case that a power supply unit of each semiconductor device is operable by receiving an instruction for release of a low power consumption state, a supply start timing of the operation power supply voltages in the second mode is delayed as compared to that in the first mode.Type: GrantFiled: February 12, 2018Date of Patent: December 10, 2019Assignee: Synaptics Japan GKInventors: Noriyuki Ishii, Atsushi Shikata
-
Publication number: 20190096309Abstract: A display driver includes: a memory comprising a plurality of memory regions each configured to store image data for one line of an image displayed in a frame; and control circuitry configured to adjust a number of in-use memory regions of the plurality of memory regions used to store the image data. The control circuitry is further configured to control the memory so that image data for respective lines of the image are cyclically stored in the in-use memory regions in a fixed order.Type: ApplicationFiled: September 20, 2018Publication date: March 28, 2019Inventors: Kentaro SUZUKI, Atsushi SHIKATA, Jiro SHIMBO, Makoto TAKEUCHI, Shigeru OTA
-
Publication number: 20190095033Abstract: A display driver comprises a touch controller configured to perform touch sensing on a display panel during a vertical sync period. A first field of the vertical sync period comprises a display period and a touch sensing period following the display period. A start timing of the touch sensing period is controlled by an internal clock signal. A first counter is configured to, responsive to completion of the touch sensing, start a counting operation in synchronization with the internal clock signal. Gate control signal generator circuitry is configured to control a gate driver that is configured to drive a plurality of gate lines of the display panel. A gate line that is to be driven first to a high level during a second field following the first field is driven to the high level responsive to a count value of the first counter during the first field.Type: ApplicationFiled: September 13, 2018Publication date: March 28, 2019Inventors: Makoto Takeuchi, Shigeru Ota, Atsushi Shikata, Kentaro Suzuki, Jiro Shimbo