公开(公告)号：WO2010030709A1

公开(公告)日：2010-03-18

申请号：PCT/US2009/056413

申请日：2009-09-09

Applicant: APPLE INC. ,  KRAH, Christoph, Horst

Inventor： KRAH, Christoph, Horst

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0416 ,  G06F3/044

Abstract: Determining a compensated phase matrix for a multi-stimulus demodulation process is provided. A first drive line of a multi-stimulus sensing system is selected, and a stimulation signal is transmitted on the selected drive line. A channel gain resulting from the stimulation signal is measured from a received sense signal resulting from the stimulation signal. The measured channel gain is compared with a known channel gain to obtain an individual phase compensation for the selected drive line. A compensated phase matrix is formed of the individual phase compensation values for multiple drive lines.

Abstract translation: 提供了用于多激励解调过程的补偿相位矩阵。 选择多刺激感测系统的第一驱动线，并且在所选择的驱动线上传输刺激信号。 从刺激信号产生的接收感测信号测量由刺激信号产生的通道增益。 将测量的信道增益与已知的信道增益进行比较，以获得所选驱动线路的单相补偿。 补偿相位矩阵由多个驱动线的各个相位补偿值形成。

公开(公告)号：WO2010030706A1

公开(公告)日：2010-03-18

申请号：PCT/US2009/056410

申请日：2009-09-09

Applicant: APPLE INC. ,  HOTELLING, Steven, Porter ,  KRAH, Christoph, Horst ,  YOUSEFPOR, Marduke ,  WILSON, Thomas, James

Inventor： HOTELLING, Steven, Porter ,  KRAH, Christoph, Horst ,  YOUSEFPOR, Marduke ,  WILSON, Thomas, James

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04104 ,  G09G5/18

Abstract: A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.

Abstract translation: 用于多触摸传感器的多激励控制器形成在单个集成电路（单芯片）上。 多激励控制器包括发射振荡器，基于发射振荡器的频率产生多个驱动信号的发射信号部分，同时传输驱动信号以驱动多点触摸传感器的多个发射信道， 接收信号，其接收由所述多点触摸传感器的驱动产生的感测信号，接收振荡器和解调部分，其基于所述接收振荡器的频率来解调所接收的感测信号以获得感测结果，所述解调部分包括： 解调器和向量运算符。

公开(公告)号：WO2008085456A3

公开(公告)日：2008-07-17

申请号：PCT/US2007/026297

申请日：2007-12-21

Applicant: APPLE INC. ,  KRAH, Christoph, Horst

Inventor： KRAH, Christoph, Horst

IPC: G06F3/044 ,  G06F3/041

Abstract: Disclosed is a system and method for providing an oscillating signal of relatively precise frequency without using a signal provided by a crystal as a reference. Disclosed is a feedback oscillator circuit configured to output an oscillating signal having a frequency defined by a reference signal. The oscillating signal can be sent to one or more circuits including at least one frequency sensitive element. The frequency sensitive element produces an output signal which depends on the frequency of the oscillating signal. A controller controls the reference signal in order to cause an attribute of the output signal to have a value within a desired range.

公开(公告)号：WO2012061180A1

公开(公告)日：2012-05-10

申请号：PCT/US2011/057934

申请日：2011-10-26

Applicant: APPLE INC. ,  WHITE, Kevin, J. ,  YOUSEFPOR, Marduke ,  KRAH, Christoph, Horst ,  HOTELLING, Steven, Porter

Inventor： WHITE, Kevin, J. ,  YOUSEFPOR, Marduke ,  KRAH, Christoph, Horst ,  HOTELLING, Steven, Porter

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/0418

Abstract: A touch sensitive device having circuitry to compensate for crosstalk from the device display to the device touch sensor panel is disclosed. The crosstalk compensation circuitry can include a downsampler and a crosstalk compensator. The downsampler can downsample a display image to a manageable size for transmission and processing and can then send the downsampled image to the crosstalk compensator so as to provide information about the display operation that can be used to estimate the expected amount of crosstalk caused by the display. The crosstalk compensator can estimate the amount of crosstalk based on the downsampled image and can then compensate a touch image captured by the touch sensor panel for the estimated amount, the touch image being indicative of a touch or hover event at the panel.

Abstract translation: 公开了具有用于补偿从设备显示器到设备触摸传感器面板的串扰的电路的触敏设备。 串扰补偿电路可以包括下采样器和串扰补偿器。 下采样器可以将显示图像下采样到可管理的尺寸用于传输和处理，然后可以将下采样图像发送到串扰补偿器，以便提供关于可用于估计由显示器引起的串扰预期量的显示操作的信息 。 串扰补偿器可以基于下采样图像估计串扰量，然后可以补偿由触摸传感器面板捕获的触摸图像的估计量，触摸图像指示面板上的触摸或悬停事件。

公开(公告)号：WO2008157245A3

公开(公告)日：2008-12-24

申请号：PCT/US2008/066743

申请日：2008-06-12

Applicant: APPLE INC. ,  KRAH, Christoph, Horst ,  HOTELLING, Steve, Porter ,  O'CONNOR, Sean, Erik ,  WESTERMAN, Wayne, Carl

Inventor： KRAH, Christoph, Horst ,  HOTELLING, Steve, Porter ,  O'CONNOR, Sean, Erik ,  WESTERMAN, Wayne, Carl

IPC: G06F3/044 ,  G06F3/041

Abstract: The use of multiple stimulation frequencies and phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have multiple mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.

公开(公告)号：WO2008085457A3

公开(公告)日：2008-09-04

申请号：PCT/US2007026298

申请日：2007-12-21

Applicant: APPLE INC ,  KRAH CHRISTOPH HORST

Inventor： KRAH CHRISTOPH HORST

IPC: G06F3/041 ,  G06F3/038

CPC classification number: G06F3/044

Abstract: Embodiments of the present invention are directed to processing an incoming signal by using a demodulation signal, while controlling the phase of the demodulation signal in relation to the incoming signal. The incoming signal can be processed by being mixed with the modulation signal at a mixer. The mixing may thus cause various beneficial modifications of the incoming signal, such as noise suppression of the incoming signal, rectification of the incoming signal, demodulation of the incoming signal, etc.

Abstract translation: 本发明的实施例涉及通过使用解调信号来处理输入信号，同时控制相对于输入信号的解调信号的相位。 可以通过在混合器处与调制信号混合来处理输入信号。 因此，混合可以对输入信号进行各种有益的修改，例如输入信号的噪声抑制，输入信号的整流，输入信号的解调等。

公开(公告)号：WO2008085420A2

公开(公告)日：2008-07-17

申请号：PCT/US2007/026188

申请日：2007-12-21

Applicant: APPLE INC. ,  KRAH, Christoph, Horst

Inventor： KRAH, Christoph, Horst

IPC: H03L7/02 ,  H03L7/12

CPC classification number: H03L7/02 ,  G06F3/0416 ,  H03L7/12

Abstract: Disclosed is a system and method for providing an oscillating signal of relatively precise frequency without using a signal provided by a crystal as a reference. Disclosed is a feedback oscillator circuit configured to output an oscillating signal having a frequency defined by a reference signal. The oscillating signal can be sent to one or more circuits including at least one frequency sensitive element. The frequency sensitive element produces an output signal which depends on the frequency of the oscillating signal. A controller controls the reference signal in order to cause an attribute of the output signal to have a value within a desired range.

Abstract translation: 公开了一种用于在不使用由晶体提供的信号作为参考的情况下提供相对精确频率的振荡信号的系统和方法。 公开了一种反馈振荡器电路，其被配置为输出具有由参考信号限定的频率的振荡信号。 振荡信号可以被发送到包括至少一个频率敏感元件的一个或多个电路。 频率敏感元件产生取决于振荡信号的频率的输出信号。 控制器控制参考信号，以便使输出信号的属性具有在期望范围内的值。

公开(公告)号：WO2008085417A2

公开(公告)日：2008-07-17

申请号：PCT/US2007/026179

申请日：2007-12-21

Applicant: APPLE INC. ,  VU, Minh-dieu, Thi ,  WILSON, Thomas, James ,  KRAH, Christoph, Horst

Inventor： VU, Minh-dieu, Thi ,  WILSON, Thomas, James ,  KRAH, Christoph, Horst

IPC: G06F3/041 ,  G06F3/038

CPC classification number: G06F3/0416 ,  G06F1/3262 ,  G06F3/03545 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04104

Abstract: A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.

Abstract translation: 公开了一种可自主扫描传感器面板的设备。 自治扫描可以通过执行通道扫描逻辑来执行。 在一个实施例中，信道扫描逻辑执行处理器通常会承担的许多功能，包括产生定时序列和获得结果数据; 将扫描结果数据与阈值进行比较（例如，以自动扫描模式）; 生成行数; 选择一个或多个扫描频带; 电源管理控制; 并在低功耗模式下执行自动扫描例程。

公开(公告)号：WO2012096853A1

公开(公告)日：2012-07-19

申请号：PCT/US2012/020546

申请日：2012-01-06

Applicant: APPLE INC. ,  KRAH, Christoph, Horst

Inventor： KRAH, Christoph, Horst

IPC: G09G3/20

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F2203/04101

Abstract: A touch sensitive display capable of compensating for crosstalk in the display is disclosed. Crosstalk in display components can be reduced, eliminated, or otherwise compensated for by reducing or eliminating parasitic capacitances that cause the crosstalk. To do so, gate voltages to the display components, such as thin film transistors (TFTs), that introduce the parasitic capacitances can be reduced or otherwise adjusted. In one approach, the gate voltage can be set at multiple different low levels to generate respective sets of touch signals having different amounts of crosstalk. The different crosstalk amounts can then be used to determine and compensate for the crosstalk in the touch signals. In another approach, gate voltage can be modulated between multiple different low levels to push crosstalk out of band with the generated touch signals. The out-of-band crosstalk can then be used to compensate for the crosstalk in the touch signals.

Abstract translation: 公开了一种能够补偿显示器串扰的触敏显示器。 通过减少或消除引起串扰的寄生电容，可以减少，消除或以其他方式补偿显示器组件中的串扰。 为此，可以减小或调整引入寄生电容的诸如薄膜晶体管（TFT）的显示器组件的栅极电压。 在一种方法中，栅极电压可以设置在多个不同的低电平以产生具有不同量的串扰的各组触摸信号。 然后可以使用不同的串扰量来确定和补偿触摸信号中的串扰。 在另一种方法中，栅极电压可以在多个不同的低电平之间进行调制，以使产生的触摸信号带来带外的串扰。 然后可以使用带外串扰来补偿触摸信号中的串扰。

公开(公告)号：WO2008157252A1

公开(公告)日：2008-12-24

申请号：PCT/US2008/066759

申请日：2008-06-12

Applicant: APPLE INC. ,  KRAH, Christoph, Horst ,  HOTELLING, Steve, Porter ,  O'CONNOR, Sean, Erik ,  WESTERMAN, Wayne, Carl

Inventor： KRAH, Christoph, Horst ,  HOTELLING, Steve, Porter ,  O'CONNOR, Sean, Erik ,  WESTERMAN, Wayne, Carl

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/0418 ,  G06F3/044

Abstract: The identification of low noise stimulation frequencies for detecting and localizing touch events on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a separate sense line in a touch sensor panel and can have multiple mixers, each mixer using a demodulation frequency of a particular frequency, phase and delay. With no stimulation signal applied to any drive lines in the touch sensor panel, pairs of mixers can demodulate the sum of the output of all sense channels using the in-phase (I) and quadrature (Q) signals of a particular frequency. The demodulated outputs of each mixer pair can be used to calculate the magnitude of the noise at that particular frequency, wherein the lower the magnitude, the lower the noise at that frequency. Several low noise frequencies can be selected for use in a subsequent touch sensor panel scan function.

Abstract translation: 公开了用于检测和定位触摸传感器面板上的触摸事件的低噪声刺激频率的识别。 多个感测通道中的每一个可以耦合到触摸传感器面板中的单独的感测线，并且可以具有多个混频器，每个混频器使用特定频率，相位和延迟的解调频率。 在没有刺激信号施加到触摸传感器面板中的任何驱动线路的情况下，成对的混频器可以使用特定频率的同相（I）和正交（Q）信号来解调所有感测通道的输出之和。 每个混频器对的解调输出可用于计算该特定频率处的噪声幅度，其中幅度越小，该频率处的噪声越低。 可以选择几种低噪声频率用于随后的触摸传感器面板扫描功能。