公开(公告)号：US4633221A

公开(公告)日：1986-12-30

申请号：US786175

申请日：1985-10-09

申请人： Peter D. Bradshaw ,  Lee L. Evans

发明人： Peter D. Bradshaw ,  Lee L. Evans

IPC分类号： H03M1/00 ,  H03M1/52 ,  H03M1/18

CPC分类号： H03M1/181 ,  H03M1/52

摘要： A dual slope analog-to-digital converter with automatic short cycle range determination. The time period of the signal integrate phase is adjusted to accommodate different ranges of input signals. Range selection is achieved automatically with the converter switching quickly from one range to another until the right range is found, without the necessity of displaying an "out of range" reading. Normal mode rejection of 60 Hz noise is achieved on all timing ranges.

摘要翻译： 具有自动短周期范围确定的双斜率模数转换器。 调整信号积分相位的时间段以适应不同范围的输入信号。 范围选择自动实现，转换器从一个范围快速切换到另一个范围，直到找到正确的范围，而不需要显示“超出范围”的读数。 在所有时间范围内实现60 Hz噪声的正常模式抑制。

公开(公告)号：US4546324A

公开(公告)日：1985-10-08

申请号：US453237

申请日：1982-12-27

申请人： David Bingham ,  Lee L. Evans ,  Peter D. Bradshaw

发明人： David Bingham ,  Lee L. Evans ,  Peter D. Bradshaw

IPC分类号： G06G7/12 ,  G06G7/14 ,  G06G7/161 ,  G06G7/186 ,  H03F3/45 ,  H03F1/34

CPC分类号： H03F3/45977 ,  G06G7/14 ,  G06G7/161 ,  G06G7/1865 ,  H03F2200/261 ,  H03F2203/45551

摘要： A digitally switched analog signal conditioner comprising a plurality of pairs of input terminals, a junction, and an output terminal; a plurality of capacitors, first ends of the capacitors being connected to the junction; a plurality of switches being arranged in pairs, first ends of each pair being connected to the other ends of different ones of the capacitors, the other ends of each pair being connected to respective ones of a pair of input terminals, the switches of each pair being adapted to be operated alternatively; an amplifier having an input and an output, the input being operatively coupled to the junction; and a sample and hold circuit operatively coupled to the output of the amplifier for periodically sampling and holding the output, the output of the sampling and holding circuit being connected to one of the input terminals of one of the pairs of input terminals, the other of the terminals of the one pair of input terminals being connected to a point of reference potential.

摘要翻译： 一种数字切换模拟信号调理器，包括多对输入端，接点和输出端; 多个电容器，电容器的第一端连接到结点; 多对开关成对配置，每对的第一端连接到不同电容器的另一端，每对的另一端连接到一对输入端中的相应的一对输入端，每对的开关 适于交替操作; 具有输入和输出的放大器，所述输入可操作地耦合到所述结点; 以及可操作地耦合到放大器的输出的采样和保持电路，用于周期性地采样和保持输出，采样和保持电路的输出连接到输入端子之一的输入端之一，另一个 一对输入端子的端子连接到参考电位点。

公开(公告)号：US08565284B2

公开(公告)日：2013-10-22

申请号：US11838084

申请日：2007-08-13

申请人： Paul D. Ta ,  Wei Wang ,  Alvin Wang ,  Peter D. Bradshaw

发明人： Paul D. Ta ,  Wei Wang ,  Alvin Wang ,  Peter D. Bradshaw

IPC分类号： H04B1/00

CPC分类号： H04B15/04 ,  H04B2215/067

摘要： A spread spectrum clock signal generator and an accompanying method provide a spread spectrum clock signal of a reduced electromagnetic interference. The spread spectrum clock signal generator includes (a) a state machine, which maintains a current state of the spread spectrum clock signal generator, receives as input value a next state of the spread spectrum clock signal generator and generates a clock phase selection signal based on the current and next states; (b) a random number generator for generating the next state; and (c) a waveform generation circuit for generating a spread spectrum clock signal based on the clock phase selection signal.

摘要翻译： 扩频时钟信号发生器和伴随方法提供了降低的电磁干扰的扩频时钟信号。 扩展频谱时钟信号发生器包括：（a）保持扩频时钟信号发生器的当前状态的状态机接收扩频时钟信号发生器的下一个状态作为输入值，并产生基于 当前和下一个州; （b）用于产生下一状态的随机数发生器; 和（c）用于基于时钟相位选择信号产生扩频时钟信号的波形发生电路。

公开(公告)号：US08332518B2

公开(公告)日：2012-12-11

申请号：US11838064

申请日：2007-08-13

申请人： Peter D. Bradshaw ,  Wei Wang ,  Paul D. Ta ,  Bill R-S Tang ,  Alvin Wang

发明人： Peter D. Bradshaw ,  Wei Wang ,  Paul D. Ta ,  Bill R-S Tang ,  Alvin Wang

IPC分类号： G06F15/16

CPC分类号： H04L5/16 ,  H04L69/324

摘要： A method provides a bidirectional communication protocol for data communication between a first device and a second device. The method includes: during a first time interval, transmitting data from the first device to the second device; and during a second time interval, (a) after the occurrence of a first event, (i) suspending data transmission from the first device to the second device; and (ii) transmitting control data from the second device to the first device; and (b) after the occurrence of a second event, transmitting control data from the first device to the second device.

摘要翻译： 一种方法提供用于第一设备和第二设备之间的数据通信的双向通信协议。 该方法包括：在第一时间间隔期间，将数据从第一设备发送到第二设备; 并且在第二时间间隔期间，（a）在发生第一事件之后，（i）暂停从第一设备到第二设备的数据传输; 和（ii）将控制数据从第二设备发送到第一设备; 和（b）在第二事件发生之后，将控制数据从第一设备发送到第二设备。