公开(公告)号：US08810288B2

公开(公告)日：2014-08-19

申请号：US13786481

申请日：2013-03-06

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Hung Chen

IPC: H03B1/00

CPC classification number: H03K3/012 ,  H03F3/3023 ,  H03F3/45183 ,  H03F3/45219 ,  H03F2203/45634 ,  H03F2203/45674 ,  H03K19/00

Abstract: An output buffer is disclosed. The output buffer includes an input-stage circuit, an output-stage circuit and a compensation circuit. The compensation circuit includes a capacitor, a first switch, a second switch, a third switch, and a fourth switch. The input-stage circuit receives a differential input signal and outputting a response signal. The output-stage circuit receives the response signal and outputting an output signal. The first switch controls a connection between the input-stage circuit and a first terminal of the capacitor. The second switch controls the connection between an output terminal of the compensation circuit and a second terminal of the capacitor. The third switch controls the connection between the input-stage circuit and the second-terminal of the capacitor. The forth switch controls the connection between the output terminal of the compensation circuit and the first terminal of the capacitor.

Abstract translation: 公开了输出缓冲器。 输出缓冲器包括输入级电路，输出级电路和补偿电路。 补偿电路包括电容器，第一开关，第二开关，第三开关和第四开关。 输入级电路接收差分输入信号并输出​​响应信号。 输出级电路接收响应信号并输出​​输出信号。 第一开关控制输入级电路和电容器的第一端之间的连接。 第二开关控制补偿电路的输出端子和电容器的第二端子之间的连接。 第三开关控制输入级电路和电容器的第二端之间的连接。 第四开关控制补偿电路的输出端子与电容器的第一端子之间的连接。

公开(公告)号：US20140218333A1

公开(公告)日：2014-08-07

申请号：US13968450

申请日：2013-08-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang

IPC: G06F3/044

CPC classification number: G06F3/044

Abstract: A coordinate calculating method includes acquiring a plurality of first end capacitances and a plurality of second end capacitances corresponding to a plurality of sensing channels of a single-layer capacitive touch device. Differences between the plurality of first end capacitances and a plurality of first baselines are calculated for acquiring a plurality of first differences and calculating differences between the plurality of second end capacitances and a plurality of second baselines for acquiring a plurality of second differences The first difference and the second difference of each sensing channel are added for acquiring a plurality of total capacitances. Whether the single-layer capacitive touch device is pressed is determined according to the plurality of total capacitances and a threshold. A coordinate of at least one touch point is outputted when determining the single-layer capacitive touch device is pressed.

Abstract translation: 坐标计算方法包括获取对应于单层电容式触摸装置的多个感测通道的多个第一端电容和多个第二端电容。 计算多个第一端电容和多个第一基线之间的差异，用于获取多个第一差异并计算多个第二端电容与用于获取多个第二差的多个第二基线之间的差。第一差和 添加每个感测通道的第二差以获取多个总电容。 根据多个总电容和阈值确定单层电容式触摸装置是否被按下。 当确定单层电容式触摸装置被按下时，输出至少一个触摸点的坐标。

公开(公告)号：US20140218102A1

公开(公告)日：2014-08-07

申请号：US13942714

申请日：2013-07-16

Applicant: Novatek Microelectronics Corp.

Inventor： Chia-Lun Hsu ,  Wing-Kai Tang

IPC: H01L23/66

CPC classification number: H01L23/66 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An integrated circuit (IC) including a high-speed signal input pin, a common node, a high-speed signal output pin, and a core circuit is provided. The high-speed signal input pin and the high-speed signal output pin are disposed on a package of the IC. The common node and the core circuit are disposed in the IC. The common node is directly and electrically coupled to the high-speed signal input pin. The high-speed signal output pin is directly and electrically coupled to the common node. A high-speed signal input terminal of the core circuit is directly and electrically coupled to the common node.

Abstract translation: 提供了包括高速信号输入引脚，公共节点，高速信号输出引脚和核心电路的集成电路（IC）。 高速信号输入引脚和高速信号输出引脚设置在IC封装上。 公共节点和核心电路设置在IC中。 公共节点直接和电耦合到高速信号输入引脚。 高速信号输出引脚直接和电耦合到公共节点。 核心电路的高速信号输入端子直接和电耦合到公共节点。

公开(公告)号：US20140198089A1

公开(公告)日：2014-07-17

申请号：US13909084

申请日：2013-06-04

Applicant: Novatek Microelectronics Corp.

Inventor： Wen-Chi Lin ,  Kuo-Chi Chen ,  Sih-Ting Wang ,  Wen-Hsuan Lin ,  Chung-Wen Wu

IPC: G06F1/32 ,  G09G3/36

CPC classification number: G06F1/32 ,  G06F1/3234 ,  G09G3/3611 ,  G09G2330/022 ,  Y02D50/20

Abstract: An image processing unit including an always on circuit block and a non-always on circuit block is provided. When operating under a first operation mode, the non-always on circuit block receives a bias voltage from a power supply unit, so as to perform an image processing operation on an image input signal. When operating under a second operation mode, the non-always on circuit block stops receiving the bias voltage from the power supply unit, so as to stop the image processing operation, and at least a microcontroller of the non-always on circuit block is powered down. One of the always on circuit block and the non-always on circuit block controls the power supply unit to stop supplying the bias voltage to the non-always on circuit block according an event trigger signal, such that the non-always on circuit block enters the second operation mode from the first operation mode.

Abstract translation: 提供一种包括总是在电路块和非始终在线电路块的图像处理单元。 当在第一操作模式下操作时，非始终接通电路块从电源单元接收偏置电压，以对图像输入信号执行图像处理操作。 当在第二操作模式下操作时，非始终在线电路块停止接收来自电源单元的偏置电压，以便停止图像处理操作，并且至少一个非始终在线电路块的微控制器被供电 下。 总是在电路块和不总是在电路块之一控制电源单元根据事件触发信号停止向非始终在线电路块提供偏置电压，使得不总是在电路块进入 从第一操作模式开始的第二操作模式。

公开(公告)号：US20140193070A1

公开(公告)日：2014-07-10

申请号：US13897001

申请日：2013-05-17

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Kuan-Kang LAI

IPC: G06T7/00

CPC classification number: G06T7/0002 ,  G06T2207/10016 ,  G06T2207/20021 ,  G06T2207/20076 ,  G06T2207/30168

Abstract: A noise estimation apparatus for calculating a noise estimation value of a frame of an image is provided. The noise estimation apparatus includes a distribution calculation unit, a variance calculation unit, a distribution curve generation module and a noise estimation unit. The distribution calculation unit generates a pixel distribution according to multiple pixel data of an ith block of the frame and multiple previous pixel data of the ith block of a previous frame. The variance calculation unit combines the pixel data and the previous pixel data to generate a variance value. The curve distribution generation module generates a curve distribution according to the variance value, and compares the pixel distribution with the curve distribution to generate a weighting value. The noise estimation unit outputs the noise estimation value according to the weighting value and the variance value corresponding to each of the blocks of the frame.

Abstract translation: 提供了一种用于计算图像的帧的噪声估计值的噪声估计装置。 噪声估计装置包括分布计算单元，方差计算单元，分布曲线生成模块和噪声估计单元。 分布计算单元根据帧的第i个块的多个像素数据和先前帧的第i个块的前一个像素数据生成像素分布。 方差计算单元组合像素数据和先前像素数据以生成方差值。 曲线分布生成模块根据方差值生成曲线分布，并将像素分布与曲线分布进行比较，生成加权值。 噪声估计单元根据与帧的每个块对应的加权值和方差值来输出噪声估计值。

公开(公告)号：US20140160104A1

公开(公告)日：2014-06-12

申请号：US13964120

申请日：2013-08-12

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Ying-Zu Lin ,  Chia-Wei Su ,  Shun-Hsun Yang ,  Chia-Hsun Kuo ,  Li-Tang Lin

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3685 ,  G09G2310/0248 ,  G09G2330/023 ,  G09G2340/16

Abstract: A display driving method and an associated driving circuit are provided, where the display driving method includes: checking relationships between two voltage levels respectively represented by two continuously received digital codes received by a specific digital code input terminal and a first predetermined threshold, and preferably further checking a relationship between at least one voltage level represented by at least one digital code of the two continuously received digital codes and a first predetermined zone, in order to determine whether to pre-charge a specific set of display cells within a plurality of sets of display cells, the specific set corresponding to the specific digital code input terminal; when it is determined to pre-charge the specific set of display cells, temporarily conducting a pre-charging voltage generator to the specific set of display cells to pre-charge the specific set of display cells.

Abstract translation: 提供一种显示驱动方法和相关联的驱动电路，其中显示驱动方法包括：检查分别由由特定数字码输入端接收的两个连续接收的数字码和第一预定阈值表示的两个电压电平之间的关系， 检查由两个连续接收的数字代码中的至少一个数字代码表示的至少一个电压电平与第一预定区域之间的关系，以便确定是否对多组集合中的特定的一组显示单元预充电 显示单元，具体设置对应于特定的数字代码输入端; 当确定为特定的显示单元组预充电时，暂时将特定的显示单元组预充电电压发生器进行预充电以对特定的显示单元组进行预充电。

公开(公告)号：US20140160095A1

公开(公告)日：2014-06-12

申请号：US13964113

申请日：2013-08-12

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Kuei-Chung Chang ,  Hsien-Wen Lo ,  Chih-Cheng Chang

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2310/0237

Abstract: A backlight module for a display device includes a clock generation module for generating a clock signal, a control module for generating a control signal and a selection control signal, a selection module coupled to the clock generation module and the control module for generating a selection result according to the clock signal and the control signal, and an output module coupled to the selection module for outputting the selection result according to the selection control signal, wherein the selection result controls the display device to be operated in a normal backlight mode, a transition mode or a flashing backlight mode.

Abstract translation: 用于显示装置的背光模块包括用于产生时钟信号的时钟产生模块，用于产生控制信号和选择控制信号的控制模块，连接到时钟发生模块的选择模块和用于产生选择结果的控制模块 根据所述时钟信号和所述控制信号，以及耦合到所述选择模块的输出模块，用于根据所述选择控制信号输出所述选择结果，其中所述选择结果控制所述显示装置以正常背光模式操作， 模式或闪光背光模式。

公开(公告)号：US20140132588A1

公开(公告)日：2014-05-15

申请号：US13962963

申请日：2013-08-09

Applicant: Novatek Microelectronics Corp.

Inventor： Chin-Hung Hsu

IPC: G09G3/36

CPC classification number: G09G3/2003 ,  G09G3/36 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3677 ,  G09G2330/021

Abstract: A display apparatus includes a source driver and a display panel. The source driver provides a plurality of pixel voltages which respectively correspond to a maximum gray-level voltage or a minimum gray-level voltage. The display panel includes a plurality of data lines, a plurality of pixel switches, a plurality of pixel capacitors, and a plurality of gray-level switches. The data lines are coupled to the source driver to receive the pixel voltages. Each pixel switch is respectively coupled to the corresponding data line to transmit the corresponding pixel voltage. Each pixel capacitor is respectively coupled between the corresponding pixel switch and a common voltage to receive the corresponding pixel voltage. Each gray-level switch is respectively coupled to the corresponding pixel capacitor in parallel and respectively receives a gray-level control signal. The gray-level switches regulate voltage drops across the pixel capacitors according to the corresponding gray-level control signals.

Abstract translation: 显示装置包括源驱动器和显示面板。 源极驱动器提供分别对应于最大灰度电压或最小灰度电压的多个像素电压。 显示面板包括多条数据线，多个像素开关，多个像素电容器和多个灰度级开关。 数据线耦合到源极驱动器以接收像素电压。 每个像素开关分别耦合到对应的数据线以传输相应的像素电压。 每个像素电容器分别耦合在对应的像素开关和公共电压之间以接收对应的像素电压。 每个灰度级开关分别并联耦合到相应的像素电容器，并分别接收灰度级控制信号。 灰度级开关根据相应的灰度级控制信号调节像素电容上的电压降。

公开(公告)号：US20140132587A1

公开(公告)日：2014-05-15

申请号：US13957440

申请日：2013-08-02

Applicant: NOVATEK Microelectronics Corp.

Inventor： Po-Yu Tseng ,  Chia-Wei Su ,  Po-Hsiang Fang ,  Shun-Hsun Yang ,  Hsin-Hung Lee

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2320/0673

Abstract: The present invention discloses an integrated source driver for a liquid crystal display device. The integrated source driver includes a reference voltage generating circuit, for providing a plurality of adjustable voltage ranges within a supply voltage and a ground level, and a reference voltage selecting circuit, including a plurality of digital to analog converters, for selecting and generating a plurality of internal reference voltages from the plurality of adjustable voltage ranges, respectively. The plurality of adjustable voltage ranges decrease progressively.

Abstract translation: 本发明公开了一种液晶显示装置的集成源极驱动器。 集成源极驱动器包括用于在电源电压和地电平内提供多个可调电压范围的参考电压产生电路，以及包括多个数模转换器的参考电压选择电路，用于选择和产生多个 分别来自多个可调电压范围的内部基准电压。 多个可调电压范围逐渐降低。

公开(公告)号：US20140112425A1

公开(公告)日：2014-04-24

申请号：US13775119

申请日：2013-02-23

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Tzu-Chien Tzeng ,  Hung-Yi Cheng

IPC: H04L7/033

CPC classification number: H04L7/0331 ,  H03L7/0807 ,  H03L7/103 ,  H03L7/1072 ,  H04L7/033

Abstract: A control method utilized in a clock data recovery device supporting a plurality of frequency bands, for controlling the clock data recovery device to select an operating frequency band from the plurality of frequency bands and to generate a recovery clock for generating retimed data, includes receiving a serial data stream with a data frequency; making each frequency band of the plurality of frequency bands correspond to a plurality of frequency band groups, wherein each frequency band group includes at least one frequency band and corresponds to different frequency ranges; selecting a frequency band group from the plurality of frequency band groups as a coarse-tuned frequency band group according to the data frequency and a locking voltage range; and selecting a frequency band from the plurality of frequency bands according to the data frequency, the locking voltage range and the coarse-tuned frequency band group for generating the recovery clock.

Abstract translation: 一种在支持多个频带的时钟数据恢复装置中使用的控制方法，用于控制时钟数据恢复装置从多个频带中选择工作频带并产生用于产生重新定时数据的恢复时钟，包括： 具有数据频率的串行数据流; 使多个频带的每个频带对应于多个频带组，其中每个频带组包括至少一个频带并对应于不同的频率范围; 根据数据频率和锁定电压范围，从多个频带组中选择频带组作为粗调谐频带组; 以及根据数据频率，锁定电压范围和用于产生恢复时钟的粗调谐频带组从多个频带中选择频带。