公开(公告)号：US08781248B2

公开(公告)日：2014-07-15

申请号：US12695220

申请日：2010-01-28

Applicant: Haiyun Wang ,  Lucas Hui

Inventor： Haiyun Wang ,  Lucas Hui

IPC: G06T5/00 ,  G06T5/40 ,  G06T5/50

CPC classification number: H04N5/202

Abstract: The appearance of image details can be preserved and/or enhanced by applying contrast adaptive gain to the high spatial frequency component of the luminance information. The image details in bright and/or dark regions can be further boosted by applying a local mean adaptive gain. The contrast transfer mapping curve for luminance contrast enhancement can be re-scaled to account for the applied gain. The re-scaling may be performed from frame to frame of displayed video. The re-scaling may be temporally controlled for subsequent frames to make the re-scaling change gradually to prevent flickering.

Abstract translation: 可以通过对亮度信息的高空间频率分量应用对比度自适应增益来保持和/或增强图像细节的外观。 亮区和/或暗区的图像细节可以通过应用局部平均自适应增益进一步提升。 用于亮度对比度增强的对比度转移映射曲线可以重新缩放以考虑所应用的增益。 可以从显示视频的帧到帧执行重新缩放。 对于随后的帧可以暂时控制重新缩放以使得重新缩放逐渐变化以防止闪烁。

公开(公告)号：US20140191978A1

公开(公告)日：2014-07-10

申请号：US13738081

申请日：2013-01-10

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE. LTD.

Inventor： Chee Yu NG ,  Praveesh CHANDRAN

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/044

Abstract: A borderless touchscreen panel includes a first conductive layer having rows of capacitive sensors and receiving traces, and a second conductive layer having columns of sensor bars and transmitting traces. The capacitive sensors are coupled to control circuitry via the receiving traces, and the sensor bars are coupled to the control circuitry via the transmitting traces. Peripheral sensor bars are disposed over the receiving traces such that the receiving traces can be routed within an active portion of the borderless touchscreen panel without obstructing its touch-detection capabilities. Furthermore, the receiving traces are comprised of a transparent material such as indium tin oxide, and therefore do not obstruct the display capabilities of the active portion. Thus, there is no need for an inactive border region since the receiving traces are disposed within the active portion without obstructing either the touch-detection or display capabilities of the borderless touchscreen panel.

Abstract translation: 无边界触摸屏面板包括具有行的电容传感器和接收迹线的第一导电层，以及具有传感器条和传输迹线列的第二导电层。 电容传感器经由接收迹线耦合到控制电路，并且传感器条经由发射迹线耦合到控制电路。 外围传感器杆设置在接收轨迹上方，使得接收轨迹可以在无边界触摸屏面板的有效部分内布线，而不会妨碍其触摸检测能力。 此外，接收迹线由诸如氧化铟锡的透明材料构成，因此不会妨碍有源部分的显示能力。 因此，由于接收迹线设置在有源部分内而不会妨碍无边界触摸屏面板的触摸检测或显示能力，因此不需要非活动边框区域。

公开(公告)号：US08737536B2

公开(公告)日：2014-05-27

申请号：US12579935

申请日：2009-10-15

Applicant: Muralidhar Karthik ,  George A. Vlantis

Inventor： Muralidhar Karthik ,  George A. Vlantis

IPC: H04B3/46

CPC classification number: H04L25/022 ,  H04L25/0244 ,  H04L25/03821 ,  H04L27/2601

Abstract: In an embodiment, a multi-carrier signal (e.g., an OFDM signal) is received over a channel. Indicators of interference and the channel response at a carrier frequency of the signal are determined, and compared. If the indicator of interference has a particular relationship to the indicator of the channel response, then a data value transmitted at the carrier frequency is recovered from a data value received at the carrier frequency according to a particular data-recovery algorithm. Because the particular data-recovery algorithm may be faster than a conventional data-recovery algorithm, recovering one or more data values with the particular algorithm may increase the speed at which data is recovered from a multicarrier signal as compared to using a conventional data-recovery algorithm.

Abstract translation: 在一个实施例中，通过信道接收多载波信号（例如，OFDM信号）。 确定信号载波频率处的干扰指标和信道响应，并进行比较。 如果干扰指示符与信道响应的指示符具有特定的关系，则根据特定的数据恢复算法从载波频率接收的数据值恢复在载波频率处发送的数据值。 由于特定的数据恢复算法可能比传统的数据恢复算法更快，与使用常规数据恢复相比，用特定算法恢复一个或多个数据值可能会增加数据从多载波信号中恢复的速度 算法。

公开(公告)号：US20140111443A1

公开(公告)日：2014-04-24

申请号：US13656302

申请日：2012-10-19

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD.

Inventor： Dianbo Guo ,  KienBeng Tan

IPC: G06F3/041

CPC classification number: G06F3/0416

Abstract: In accordance with an embodiment, a method of operating a touch panel includes operating a slave touch panel controller by receiving a synchronization signal from a master touch panel controller of a display driver circuit, and polling a plurality of receive inputs coupled to outputs of an in-cell touch module based on an predetermined pattern.

Abstract translation: 根据实施例，一种操作触摸面板的方法包括通过从显示驱动器电路的主触摸面板控制器接收同步信号来操作从触摸面板控制器，并且轮询多个接收输入的接收输入 基于预定图案的单元触摸模块。

公开(公告)号：US08698756B2

公开(公告)日：2014-04-15

申请号：US12265615

申请日：2008-11-05

Applicant: Kusuma Adi Ningrat ,  Chee Yu Ng

Inventor： Kusuma Adi Ningrat ,  Chee Yu Ng

IPC: G06F3/041 ,  H03K17/94 ,  H03M11/00

CPC classification number: G06F3/0416

Abstract: Integration of a FIFO memory, FIFO threshold and a timer, along with the other components of a touch screen system allows the number of interrupts to the touch screen controller to be reduced while allowing all point data to be acquired and preserved. In the first touch-detect event, an interrupt is issued to inform the host. The touch screen controller then automatically acquires data as long as touch is detected without host intervention. A FIFO threshold defines the minimum number of data points in FIFO memory before it issues an interrupt to inform the host that data is ready to be fetched. The timer is started once touch is detected. On every single data acquired, the timer is reset. In the event where touch is no longer detected, the timer keeps on counting until the time-up limit is reached. In this event, the touch screen controller will issue an interrupt informing the host the pen is lifted. The host then checks whether there is still data left in FIFO memory to be read.

Abstract translation: FIFO存储器，FIFO阈值和定时器以及触摸屏系统的其他组件的集成允许减少触摸屏控制器的中断次数，同时允许获取和保存所有点数据。 在第一次触摸检测事件中，发出中断通知主机。 只要在没有主机干预的情况下检测到触摸，触摸屏控制器就会自动获取数据。 FIFO阈值在发出中断之前定义FIFO存储器中的数据点的最小数量，以通知主机数据准备好被提取。 检测到触摸后，定时器开始。 在获取的每个单个数据上，定时器被复位。 在不再检测到触摸的情况下，定时器继续计数，直到达到超时限制。 在这种情况下，触摸屏控制器将发出中断，通知主机提起笔。 然后，主机检查是否仍然存在要读取的FIFO存储器中的数据。

公开(公告)号：US20140098032A1

公开(公告)日：2014-04-10

申请号：US13648149

申请日：2012-10-09

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE

Inventor： HonSiong Ng ,  Praveesh Chandran ,  Mythreyi Nagarajan ,  Ravi Bhatia

IPC: G06F3/041

CPC classification number: G06F3/0418

Abstract: A method comprises during a frame period finding a first EFT noise influenced sensor of a touch screen panel, determining whether the first EFT noise influenced sensor is located at a last transmitting/driving line of the touch screen panel, designating the frame period as a noise influenced frame period using an absolute value threshold if the first EFT noise influenced sensor is not located at the last transmitting/driving line and designating the frame period as the noise influenced frame period using a percentage threshold if the first EFT noise influenced sensor is located at the last transmitting/driving line.

Abstract translation: 一种方法包括在帧周期期间找到触摸屏面板的第一EFT噪声影响传感器，确定所述第一EFT噪声影响传感器是否位于所述触摸屏面板的最后发射/驱动线上，将所述帧周期指定为噪声 如果第一EFT噪声影响传感器不位于最后的发射/驱动线路，并且如果第一EFT噪声影响传感器位于位置时，使用百分比阈值指定帧周期作为噪声影响帧周期，则使用绝对值阈值 最后一个发射/行驶线。

公开(公告)号：US20140092054A1

公开(公告)日：2014-04-03

申请号：US13632443

申请日：2012-10-01

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Chee Yu NG

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/03545

Abstract: A touch screen system is configured to sense a proximate or actual touch made to a touch screen panel. In response thereto, an RF transmitter is actuated to emit RF energy. A stylus receives the emitted RF energy and includes an RF energy harvesting circuit that powers an enable circuit. The enable circuit generates an enable signal. The stylus responds to the enable signal by performing a sensing operation. The information collected in the sensing operation is then communicated over an RF communications link back to the touch screen system. The sensing operation preferably is a pressure sensing operation for detecting an applied pressure at an end of the stylus resulting from contact with the touch screen panel.

Abstract translation: 触摸屏系统被配置为感测触摸屏面板的接近或实际触摸。 响应于此，RF发射器被致动以发射RF能量。 触针接收发射的RF能量，并且包括为使能电路供电的RF能量收集电路。 使能电路产生使能信号。 触控笔通过执行感测操作来响应使能信号。 然后在感测操作中收集的信息通过RF通信链路传送回到触摸屏系统。 感测操作优选地是用于检测由与触摸屏面板接触而导致的触控笔端部处施加的压力的压力感测操作。

公开(公告)号：US20140092053A1

公开(公告)日：2014-04-03

申请号：US13632241

申请日：2012-10-01

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Chee Yu Ng ,  Ys On ,  Ravi Bhatia

IPC: G06F3/045 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/0488 ,  G06F2203/04108

Abstract: A display screen is configured to display information with a selectable one of many information display orientations. A touch screen panel of a touch screen system is positioned to overlie the display screen. The touch screen system operates to make a proximate touch detection, for example by a body part or stylus. A controller receives the proximate touch information from the capacitive touch screen system and interprets the proximate touch information to determine an indication from a user of a selection of an information display orientation for the display screen. The controller then controls the display screen to present information in accordance with the user selected information display orientation. The user selected information display orientation via the proximate touch detection will over-ride any other selected information display orientation such as a selection made in response to an orientation identified by an accelerometer or other gravity influenced sensor.

Abstract translation: 显示屏被配置为利用许多信息显示取向中的可选择的一个来显示信息。 触摸屏系统的触摸屏面板位于显示屏幕的上方。 触摸屏系统用于例如通过身体部分或触控笔进行近似触摸检测。 控制器接收来自电容式触摸屏系统的接近触摸信息，并且解释接近触摸信息以确定用户对显示屏幕的信息显示取向的选择的指示。 然后，控制器根据用户选择的信息显示方向控制显示屏幕呈现信息。 经由近程触摸检测的用户选择的信息显示取向将覆盖任何其他选择的信息显示方向，例如响应于由加速度计或其他重力影响的传感器识别的方位而进行的选择。

公开(公告)号：US08681875B2

公开(公告)日：2014-03-25

申请号：US12313830

申请日：2008-11-25

Applicant: Rixin Zhen ,  Yong Huang ,  Patricia Chiang

Inventor： Rixin Zhen ,  Yong Huang ,  Patricia Chiang

IPC: H04N7/12

CPC classification number: H04N19/86 ,  G06T7/13 ,  G06T7/62 ,  G06T2207/10016 ,  G06T2207/20008 ,  G06T2207/20021

Abstract: An apparatus and method for coding block boundary detection using interpolated autocorrelation is disclosed. Input video frames are processed to obtain a binary map of possible block boundary pixels including original and rescaled block boundaries. The boundary pixel map is converted to a boundary histogram. Then interpolated autocorrelation is applied to the boundary histogram to detect the block size and block size offset. The interpolated autocorrelation handles both integer sizes and non-integer sizes. A confidence measure is also determined that reflects the accuracy of the detection result. The output for the current video frame is also post processed with information from previous frames to provide better temporal stability.

Abstract translation: 公开了一种使用内插自相关编码块边界检测的装置和方法。 处理输入视频帧以获得可能的块边界像素的二进制图，包括原始和重新定标的块边界。 边界像素图被转换为边界直方图。 然后将内插自相关应用于边界直方图以检测块大小和块大小偏移。 内插自相关处理整数大小和非整数大小。 还确定了反映检测结果的准确性的置信度量度。 当前视频帧的输出也用来自先前帧的信息进行后处理，以提供更好的时间稳定性。

公开(公告)号：US20140077823A1

公开(公告)日：2014-03-20

申请号：US13717780

申请日：2012-12-18

Applicant: STMICROELECTRONICS S.R.I. ,  STMICROELECTRONICS ASIA PACIFIC PTE. LTD.

Inventor： Paolo Angelini ,  Giovanni Carlo Tripoli ,  Ernesto Lasalandra ,  Tommaso Ungaretti ,  Kien Beng Tan ,  Yannick Guedon ,  Dianbo Guo ,  Sze-Kwang Tan

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G06F3/0418 ,  G06F3/044

Abstract: Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.

Abstract translation: 提供电容感测电路和方法。 电容感测电路包括：电容 - 电压转换器，被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器，被配置为转换电容 - 电压的输出信号 转换器到感测的电压，代表要感测的电容;模拟累加器，被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值，被配置为放大所累积的模拟值的放大器和模拟 配置为将放大的累积模拟值转换为表示要感测的电容的数字值。 模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。