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公开(公告)号：US20160195947A1
公开(公告)日：2016-07-07
申请号：US14751429
申请日：2015-06-26
Applicant: SYNAPTICS INCORPORATED
Inventor： Stephen L. MOREIN , Prashant SHAMARAO , Zhibing LIU
IPC: G06F3/041
CPC classification number: G06F3/044 , G06F3/0416
Abstract: In one embodiment, a system includes one or more source drivers operable to drive a portion of a row or column of a display. The system also includes a timing controller coupled to each of the one or more source drivers and configured to control the one or more source drivers. The system further includes a downstream link for each of the one or more source drivers, configured to transfer data from the timing controller to one of the one or more source drivers. The system also includes an upstream link for each of the one or more source drivers, configured to transfer uplink data from one of the one or more source drivers to the timing controller, wherein the uplink data includes at least one of downlink lock status information and touch data.
Abstract translation: 在一个实施例中，系统包括可操作以驱动显示器的行或列的一部分的一个或多个源驱动器。 该系统还包括耦合到所述一个或多个源驱动器中的每一个并被配置为控制所述一个或多个源驱动器的定时控制器。 所述系统还包括用于所述一个或多个源驱动器中的每一个的下游链路，其被配置为将数据从所述定时控制器传送到所述一个或多个源驱动器之一。 所述系统还包括用于所述一个或多个源驱动器中的每一个的上游链路，其被配置为将上行链路数据从所述一个或多个源驱动器之一传送到所述定时控制器，其中所述上行链路数据包括下行链路锁定状态信息和 触摸数据。
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公开(公告)号：US20160357699A1
公开(公告)日：2016-12-08
申请号：US14731378
申请日：2015-06-04
Applicant: Synaptics Incorporated
Inventor： Prashant SHAMARAO , Jeffrey LUKANC
CPC classification number: G06F13/4282 , G06F13/385 , G06F13/4018
Abstract: A method, signal conditioning circuit, and system are disclosed to perform signal conditioning using a processing component coupled with at least first and second inputs. The processing component is further coupled with a first output port including first and second data lanes operable at different data rates. The method includes receiving, via the first input and at a first data rate, data included in a first input signal, and receiving, via the second input and at a second data rate different from the first data rate, data included in a second input signal. The method further includes driving, based on the first and second input signals, a first output signal onto the first output port, which includes transmitting the data included in the first input signal on the first data lane, and transmitting the data included in the second input signal on the second data lane.
Abstract translation: 公开了一种方法，信号调节电路和系统，以使用与至少第一和第二输入耦合的处理部件来执行信号调理。 处理组件还与第一输出端口耦合，第一输出端口包括以不同数据速率操作的第一和第二数据通道。 该方法包括经由第一输入和第一数据速率接收包括在第一输入信号中的数据，以及经由第二输入和不同于第一数据速率的第二数据速率接收包括在第二输入中的数据 信号。 该方法还包括基于第一和第二输入信号将第一输出信号驱动到第一输出端口上，该第一输出信号包括在第一数据通道上发送包括在第一输入信号中的数据，以及发送包括在第二输入端口 第二数据通道上的输入信号。
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公开(公告)号：US20160094225A1
公开(公告)日：2016-03-31
申请号：US14502785
申请日：2014-09-30
Applicant: Synaptics Incorporated
Inventor： Shao-Jen LIM , Prashant SHAMARAO
IPC: H03K19/0175 , G06F3/044 , G06F3/041 , H03K5/02
CPC classification number: H03K19/017509 , G06F3/0416 , G06F3/044 , G06F2203/04103 , H03K5/02
Abstract: A method for converting data signals from one power supply voltage domain for use in another power supply voltage domain. The method includes receiving the data signal at a first node of the integrated circuit, wherein the first node is within the first power supply voltage domain. The method also includes generating a first intermediate differential signal from the data signal via a first conversion circuit of the integrated circuit. The method further includes communicating the first intermediate differential signal to a first cross-coupled latch, wherein the first cross-coupled latch generates a first output signal based on the first intermediate differential signal. The method also includes outputting the first output signal from a second node of the integrated circuit, wherein the second node is in the second power supply voltage domain. Other embodiments, such as an integrated circuit, and an input device, are also provided.
Abstract translation: 一种用于将来自一个电源电压域的数据信号转换为用于另一个电源电压域的方法。 该方法包括在集成电路的第一节点处接收数据信号，其中第一节点在第一电源电压域内。 该方法还包括经由集成电路的第一转换电路从数据信号产生第一中间差分信号。 该方法还包括将第一中间差分信号传送到第一交叉耦合锁存器，其中第一交叉耦合锁存器基于第一中间差分信号产生第一输出信号。 该方法还包括从集成电路的第二节点输出第一输出信号，其中第二节点处于第二电源电压域。 还提供了诸如集成电路和输入设备的其他实施例。
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公开(公告)号：US20180218667A1
公开(公告)日：2018-08-02
申请号：US15420599
申请日：2017-01-31
Applicant: Synaptics Incorporated
Inventor： Kenji YAMAZUMI , Hirokazu HATAYAMA , Prashant SHAMARAO , Kota KITAMURA
CPC classification number: G09G3/2096 , G06F3/0412 , G06F3/0416 , G09G3/2092 , G09G3/3225 , G09G3/3275 , G09G3/3648 , G09G3/3685 , G09G5/18 , G09G5/393 , G09G2310/08 , G09G2320/0219 , G09G2330/06 , G09G2330/12 , G09G2360/18 , G09G2370/08 , G09G2370/10
Abstract: A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect occurrence of transmission error in data transmission about each line. The timing controller is configured to generate the strobe signal in response to a detection result of the occurrence of transmission error.
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Patent Agency Ranking
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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公开(公告)号：US20200184879A1
公开(公告)日：2020-06-11
申请号：US16794802
申请日：2020-02-19
Applicant: SYNAPTICS INCORPORATED
Inventor： Kenji YAMAZUMI , Hirokazu HATAYAMA , Prashant SHAMARAO , Kota KITAMURA
Abstract: A display driver includes: a receiver configured to receive image data of each line of a display panel from an external device; a line latch circuit having a line latch configured to latch the image data of each line received by the receiver in response to a strobe signal; a driving circuit section which drives the display panel in response to the image data latched by the line latch; and a timing controller configured to generate the strobe signal. The receiver is configured to detect occurrence of transmission error in data transmission about each line. The timing controller is configured to generate the strobe signal in response to a detection result of the occurrence of transmission error.
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公开(公告)号：US20180095521A1
公开(公告)日：2018-04-05
申请号：US15283224
申请日：2016-09-30
Applicant: SYNAPTICS INCORPORATED
Inventor： Aswani TADINADA , Timothy L. BLANKENSHIP , Prashant SHAMARAO , Kaushalendra TRIPATHI , Sivan Kumar PANDIAN
CPC classification number: G06F1/3296 , G06F1/3262 , G06F3/0416 , G06F3/044 , G06F2203/04108
Abstract: Embodiments described herein include a method for reducing power consumption in a capacitive touch sensor. The method includes driving the capacitive touch sensor with an operating voltage at a first voltage level. The method also includes entering the capacitive touch sensor into a sleep mode responsive to a lack of touch input to the capacitive touch sensor. The method includes reducing the operating voltage to a second voltage level, and driving the capacitive touch sensor with the operating voltage at the second voltage level.
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公开(公告)号：US20170285793A1
公开(公告)日：2017-10-05
申请号：US15085316
申请日：2016-03-30
Applicant: SYNAPTICS INCORPORATED
Inventor： Prashant SHAMARAO , Joseph Kurth REYNOLDS , Stephen L. MOREIN
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416
Abstract: An example method of performing capacitive sensing and display updating in an integrated capacitive sensing device and display device includes driving a plurality of sensor electrodes of the capacitive sensing device for input sensing during a blanking period. The method further includes driving a plurality of source lines using a plurality of source drivers during the blanking period to update a first display line of the display device. The method further includes driving the plurality of source lines using the plurality of source drivers during a display update period to update one or more additional display lines of the display device. The method further includes adjusting an operational mode of the plurality of source drivers during the blanking period to equalize display pixel settling between the blanking period and the display update period.
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公开(公告)号：US20160195957A1
公开(公告)日：2016-07-07
申请号：US14788660
申请日：2015-06-30
Applicant: SYNAPTICS INCORPORATED
Inventor： Joseph Kurth REYNOLDS , Stephen L. MOREIN , Prashant SHAMARAO
CPC classification number: G06F3/044 , G06F3/0412 , G06F3/0416
Abstract: In an example, a processing system for an integrated display device and capacitive sensing device includes driver circuitry and a driver module. The driver circuitry is configured for coupling to a plurality of source lines and a plurality of sensor electrodes, where each of the plurality of sensor electrodes comprises at least one common electrode configured for display updating and capacitive sensing. The driver module is coupled to the driver circuitry and configured to drive the plurality of sensor electrodes for capacitive sensing during a first non-display update period that occurs between first and second display line update periods of a display frame, where the non-display update period is at least as long as one of the first and second display line update periods. The driver module is further configured to operate each of the plurality of source lines to reduce display artifacts during the non-display update period.
Abstract translation: 在一个示例中，用于集成显示设备和电容感测设备的处理系统包括驱动器电路和驱动器模块。 驱动器电路被配置为耦合到多个源极线和多个传感器电极，其中多个传感器电极中的每一个包括被配置用于显示更新和电容感测的至少一个公共电极。 驱动器模块耦合到驱动器电路并且被配置为在显示帧的第一和第二显示行更新周期之间发生的第一非显示更新周期期间驱动多个传感器电极用于电容感测，其中非显示更新 时间段至少等于第一和第二显示行更新周期中的一个。 驱动器模块还被配置为操作多个源极线中的每一个以减少非显示更新周期期间的显示伪影。
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