公开(公告)号：US20140167830A1

公开(公告)日：2014-06-19

申请号：US14103078

申请日：2013-12-11

申请人： Weiming Sun ,  Alvan Lam ,  Lei Huang ,  Emma Wang ,  Peng Zhu

发明人： Weiming Sun ,  Alvan Lam ,  Lei Huang ,  Emma Wang ,  Peng Zhu

IPC分类号： H03K5/13

CPC分类号： H03K5/131

摘要： A delay time adjusting circuit is described, in which a reference signal circuit generates at least one reference signal to an A/D conversion circuit, an input signal circuit generates an input signal to the A/D conversion circuit, the A/D conversion circuit compares the input signal with the at least one reference signal to output a digital signal to a digital logic chip, and the digital logic chip determines a delay time based on the digital signal. In this way, the delay time can be determined digitally, and an adjusting accuracy of the delay time can be increased; and also, the delay time can be adjusted through changing the level of the input signal, thus reducing circuit losses and costs

摘要翻译： 描述了延迟时间调节电路，其中参考信号电路产生至少一个参考信号到A / D转换电路，输入信号电路产生一个到A / D转换电路的输入信号，A / D转换电路 将输入信号与至少一个参考信号进行比较，以将数字信号输出到数字逻辑芯片，并且数字逻辑芯片基于数字信号确定延迟时间。 以这种方式，可以数字地确定延迟时间，并且可以增加延迟时间的调整精度; 也可以通过改变输入信号的电平来调整延迟时间，从而减少电路损耗和成本

公开(公告)号：US20140167829A1

公开(公告)日：2014-06-19

申请号：US14109161

申请日：2013-12-17

申请人： Alvan Lam ,  Weiming Sun ,  Emma Wang ,  Peng Zhu

发明人： Alvan Lam ,  Weiming Sun ,  Emma Wang ,  Peng Zhu

IPC分类号： H03K5/14

CPC分类号： H03K5/14

摘要： This document discusses, among other things, a delay circuit, in which a first register is written with a delay reference code, a second register is written with a delay factor, a control unit determines a corresponding delay ratio in a storage unit based on the delay factor in the second register, and sends the determined delay ratio to a first digital timing unit, the first digital timing unit determines a delay reference time based on the delay reference code in the first register, multiplies the delay reference time by the delay ratio to result in a desired delay time, and generates a delay.

摘要翻译： 本文件尤其涉及延迟电路，其中以延迟参考码写入第一寄存器，以延迟因子写入第二寄存器，控制单元基于存储单元确定存储单元中的相应延迟比 延迟因子，并将确定的延迟比率发送到第一数字定时单元，第一数字定时单元基于第一寄存器中的延迟参考码确定延迟基准时间，将延迟参考时间乘以延迟比 导致期望的延迟时间，并产生延迟。

公开(公告)号：US20160342492A1

公开(公告)日：2016-11-24

申请号：US15160085

申请日：2016-05-20

申请人： Jianli Chen ,  Weiming Sun ,  Emma Wang ,  Lei Huang

发明人： Jianli Chen ,  Weiming Sun ,  Emma Wang ,  Lei Huang

IPC分类号： G06F11/22 ,  G06F1/32 ,  G06F13/42 ,  G06F11/30 ,  G06F13/38

CPC分类号： G06F13/4282 ,  G06F13/385

摘要： Systems and methods are disclosed, including a USB interface detector, a detection method, a USB connector, and an electronic device. The detection method may be applicable to the USB connector mounted in the electronic device. According to an operation mode of the electronic device, a first pin and a second pin in the USB interface can be pulled up or pulled down. After the pull up or the pull down, a voltage change at the first and second pins are detected. If the voltage changes cross a reference voltage, an instruction related to attachment or detachment with a second device can be provided.

摘要翻译： 公开了包括USB接口检测器，检测方法，USB连接器和电子设备的系统和方法。 检测方法可以适用于安装在电子设备中的USB连接器。 根据电子设备的操作模式，USB接口中的第一引脚和第二引脚可以被上拉或下拉。 在上拉或下拉之后，检测到第一和第二引脚上的电压变化。 如果电压变化跨越参考电压，则可以提供与第二装置的附接或拆卸相关的指令。

公开(公告)号：US20130259269A1

公开(公告)日：2013-10-03

申请号：US13852812

申请日：2013-03-28

申请人： Tony Cheng Han Lee ,  Shawn Kirk Barden ,  Ricky Li ,  Emma Wang

发明人： Tony Cheng Han Lee ,  Shawn Kirk Barden ,  Ricky Li ,  Emma Wang

IPC分类号： H04R3/00

CPC分类号： H04R3/00 ,  H04R1/1041 ,  H04R2410/00

摘要： The disclosure provides a button-press detection and filtering method, related circuit, and button-press detection chip for a external device. A button-press signal from a wire control apparatus is coupled to the button-press detection chip for the external device. The button-press detection chip for the external device can digitally sample the button-press signal through the filter circuit and outputs a digital logic signal corresponding to a button to an audio codec according to the sampling result. The audio codec can determine a pressed button according to the digital logic signal and performs a corresponding function. With the solutions of the disclosure, a noise interference signal in a button-press signal may be avoided and a pressed button may be accurately detected, without using a dedicated chip or complex software codes in a wire control apparatus and an electronic device.

摘要翻译： 本公开提供了用于外部设备的按钮按压检测和滤波方法，相关电路和按钮按压检测芯片。 来自线控制装置的按钮信号被耦合到用于外部设备的按钮按压检测芯片。 用于外部设备的按钮检测芯片可以通过滤波器电路对按钮信号进行数字采样，并根据采样结果将与按钮对应的数字逻辑信号输出到音频编解码器。 音频编解码器可以根据数字逻辑信号确定按下的按钮并执行相应的功能。 利用本公开的解决方案，可以避免按钮按压信号中的噪声干扰信号，并且可以在线控制装置和电子设备中不使用专用芯片或复杂软件代码的情况下，精确地检测按压按钮。