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公开(公告)号：US20210134221A1
公开(公告)日：2021-05-06
申请号：US16488520
申请日：2018-02-23
Applicant: SYNAPTICS INCORPORATED
Inventor： Damien BERGET , Hirobumi FURIHATA , Joseph Kurth REYNOLDS , Takashi NOSE
IPC: G09G3/3258 , G09G3/3291 , G09G3/20 , G09G3/3275 , G09G5/395
Abstract: A system and method for encoding, transmitting and updating a display based on demura calibration information for a display device comprises generating demura correction coefficients based on display color information, separating coherent components from the demura correction coefficients to generate residual information, and encode the residual information using a first encoding technique. Further, the image data may be divided into data streams, compressed and transmitted to from a host device to a display driver of a display device. The display driver decompresses and drives subpixels of the pixels in based on the decompressed data. The display driver updates the subpixels of a display using corrected greyscale values for each subpixel are determined from the decompressed data.
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公开(公告)号：US20200266805A1
公开(公告)日：2020-08-20
申请号：US16869518
申请日：2020-05-07
Applicant: SYNAPTICS INCORPORATED
Inventor： Jeremy ROBERSON , David SOBEL , Damien BERGET
Abstract: Embodiments disclosed herein generally relate to electronic devices, and more specifically, to a waveform generation circuit for input devices. One or more embodiments provide a new waveform generator for an integrated touch and display driver (TDDI) and methods for generating a waveform for capacitive sensing with a finely tunable sensing frequency. A waveform generator includes accumulator circuitry, truncation circuitry, and saturation circuitry. The accumulator circuitry is configured to accumulate the phase increment value based on a clock signal, and output the accumulated phase increment value. The truncation circuitry configured to drop one or more bits of the accumulated phase increment value to output a truncated value. The saturation circuitry is configured to compare the truncated value to a saturation limit and output a signal corresponding to accessed data samples.
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公开(公告)号：US20190122613A1
公开(公告)日：2019-04-25
申请号：US16223508
申请日：2018-12-18
Applicant: SYNAPTICS INCORPORATED
Inventor： Hirobumi FURIHATA , Damien BERGET , Takashi NOSE , Joseph Kurth REYNOLDS
IPC: G09G3/3258 , G09G3/20 , G09G3/3291 , G09G5/395
Abstract: A host device divides original data into first to Nth stream data for N being an integer of two or more, generates first to Nth compressed stream data by sequentially compressing the first to Nth stream data with a variable length compression, divides the first to Nth compressed stream data into fixed-length blocks, and sequentially transmits the fixed-length blocks to the display driver. The display driver includes a memory storing therein the fixed-length blocks and a decompression circuitry reading out the fixed-length blocks from the memory. The decompression circuitry includes first to Nth processing circuits. The first to Nth processing circuits each perform a predetermined process on the fixed-length blocks received to generate processed data. The host device sorts the fixed-length blocks so that the fixed-length blocks are supplied in the order in which the first to Nth processing circuits require the fixed-length blocks.
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公开(公告)号：US20170147141A1
公开(公告)日：2017-05-25
申请号：US14946746
申请日：2015-11-19
Applicant: SYNAPTICS INCORPORATED
Inventor： Kasra KHAZENI , Damien BERGET , Joseph Kurth REYNOLDS
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04104 , G06F2203/04106
Abstract: Embodiments of the disclosure provided herein provide a device and method of using the device that is able to improve the detection of user input provided to an input device while one or more sources of noise are present during the detection process. One or more of the embodiments disclosed herein may include a scanning process and a signal processing technique that is able to more reliably detect the presence and position of an input object by reducing the effect of noise on a resulting signal that is generated during a capacitive sensing process. In some configurations, the scanning and signal processing techniques disclosed herein can be improved by increasing a capacitive sensing device's ability to detect the presence of an input object by improving the signal-to-noise ratio of the data collected during a capacitive sensing process.
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公开(公告)号：US20170003785A1
公开(公告)日：2017-01-05
申请号：US14788562
申请日：2015-06-30
Applicant: SYNAPTICS INCORPORATED
Inventor： Damien BERGET , Joseph Kurth REYNOLDS , Stephen L. MOREIN
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: A display and touch driver architecture is described that includes a plurality of source drivers and a processing system. The processing system operates receivers within the source drivers to selectively receive sensing data from the receivers and determines positional information based on the sensing data. The processing system may selectively operate different source drivers in low power modes and/or for capacitive sensing based on the determined positional information.
Abstract translation: 描述了包括多个源驱动器和处理系统的显示器和触摸驱动器架构。 处理系统操作源驱动器内的接收器以选择性地从接收器接收感测数据，并基于感测数据确定位置信息。 处理系统可以基于所确定的位置信息，以低功率模式和/或电容感测选择性地操作不同的源驱动器。
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Patent Agency Ranking
公开(公告)号：US20180240440A1
公开(公告)日：2018-08-23
申请号：US15594327
申请日：2017-05-12
Applicant: SYNAPTICS INCORPORATED
Inventor： Hirobumi FURIHATA , Damien BERGET , Takashi NOSE , Joseph Kurth REYNOLDS
IPC: G09G5/395
CPC classification number: G09G5/395 , G09G3/2011 , G09G3/3258 , G09G3/3291 , G09G2300/0439 , G09G2310/027 , G09G2320/0271 , G09G2320/0285 , G09G2320/0626 , G09G2330/028 , G09G2340/02 , G09G2350/00
Abstract: A host device divides original data into first to Nth stream data for N being an integer of two or more, generates first to Nth compressed stream data by sequentially compressing the first to Nth stream data with a variable length compression, divides the first to Nth compressed stream data into fixed-length blocks, and sequentially transmits the fixed-length blocks to the display driver. The display driver includes a memory storing therein the fixed-length blocks and a decompression circuitry reading out the fixed-length blocks from the memory. The decompression circuitry includes first to Nth processing circuits. The first to Nth processing circuits each perform a predetermined process on the fixed-length blocks received to generate processed data. The host device sorts the fixed-length blocks so that the fixed-length blocks are supplied in the order in which the first to Nth processing circuits require the fixed-length blocks.
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公开(公告)号：US20190088195A1
公开(公告)日：2019-03-21
申请号：US15706189
申请日：2017-09-15
Applicant: SYNAPTICS INCORPORATED
Inventor： Kasra KHAZENI , Damien BERGET
IPC: G09G3/32
Abstract: An example processing system for driving a display having light-emitting diode (LED) sub-pixels is described. The processing system comprises a memory that stores a first plurality of values for a first LED sub-pixel of the LED sub-pixels and a processing circuit. The processing circuit is configured to: receive image data for the display, the image data comprising a first input digital code for the first LED sub-pixel; and generate a first output digital code using a non-linear function having an argument and a plurality of constant parameters, where the processing circuit is configured to set the argument to the first input digital code and the plurality of constant parameters to the first plurality of values. The processing system further comprises a display driver, coupled to the display and the processing circuit, comprising a first digital-to-analog converter (DAC) configured to control intensity of emitted light from the first LED sub-pixel in response to the first output digital code.
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公开(公告)号：US20180240404A1
公开(公告)日：2018-08-23
申请号：US15594203
申请日：2017-05-12
Applicant: SYNAPTICS INCORPORATED
Inventor： Hirobumi FURIHATA , Damien BERGET , Takashi NOSE , Joseph Kurth REYNOLDS
IPC: G09G3/3258 , G09G3/3291
Abstract: A display driver for driving a display panel includes a voltage data generator circuit calculating a voltage data value from an input grayscale value and a driver circuitry driving the display panel in response to the voltage data value. The voltage data generator circuit includes a basic control point data storage circuit storing therein basic control point data specifying a basic correspondence relationship between the input grayscale value and the voltage data value, a correction data memory storing correction data for each of the pixel circuits, a control point calculation circuit and a data correction circuit. When the voltage data value is calculated for a specific pixel circuit, the control point calculation circuit generates control point data associated with the specific pixel circuit by correcting the basic control point data on the basis of the correction data associated with the specific pixel circuit, and The data correction circuit calculates the voltage data value from the input grayscale value on the basis of the correspondence relationship specified by the control point data associated with the control point data.
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公开(公告)号：US20200067495A1
公开(公告)日：2020-02-27
申请号：US16201600
申请日：2018-11-27
Applicant: SYNAPTICS INCORPORATED
Inventor： Jeremy ROBERSON , David SOBEL , Damien BERGET
Abstract: Embodiments disclosed herein generally relate to electronic devices, and more specifically, to a waveform generation circuit for input devices. One or more embodiments provide a new waveform generator for an integrated touch and display driver (TDDI) and methods for generating a waveform for capacitive sensing with a finely tunable sensing frequency. A waveform generator includes accumulator circuitry, truncation circuitry, and saturation circuitry. The accumulator circuitry is configured to accumulate the phase increment value based on a clock signal, and output the accumulated phase increment value. The truncation circuitry configured to drop one or more bits of the accumulated phase increment value to output a truncated value. The saturation circuitry is configured to compare the truncated value to a saturation limit and output a signal corresponding to accessed data samples.
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公开(公告)号：US20180218191A1
公开(公告)日：2018-08-02
申请号：US15420605
申请日：2017-01-31
Applicant: SYNAPTICS INCORPORATED
Inventor： Damien BERGET , Kasra KHAZENI , Prashant SHAMARAO
CPC classification number: G06K9/0002 , G06F3/0416 , G06F3/044 , G06F2203/04106
Abstract: Embodiments herein describe an input device that includes a display area for outputting images which includes a capacitive sensing region. For example, the display area may include transparent sensor electrodes that can identify a location of an input object (e.g., a finger or stylus) within the sensing region. Moreover, the input device may include a fingerprint sensor disposed in a fan out region of a plurality of traces that are electrically coupled to display or capacitive sensing elements in the display area. The input device may include isolation logic disposed between the fingerprint sensor and the display area. When activated, the isolation logic electrically insulates a first portion of the traces in the fingerprint sensor from a second portion of the traces in the display area. Once disconnected, the input device can use the first portion of the traces to perform fingerprint sensing.
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