公开(公告)号：US06411241B1

公开(公告)日：2002-06-25

申请号：US09517622

申请日：2000-03-03

Applicant: Osamu Taketoshi

Inventor： Osamu Taketoshi

IPC: H03M112

CPC classification number: H03M1/002 ,  H03M1/007 ,  H03M1/167 ,  H03M1/208

Abstract: An A/D converter guarantees high conversion precision and reduces power consumption not only in a standby state but in any other states. Therefore, a subtraction circuit is added to the A/D converter obtain a difference between a reference voltage and an analog signal, and an analog signal stored as a reference voltage is used. The difference is converted only by an A/D conversion unit for converting lower bits, and an operation mode for stopping the operation of an idle conversion unit is designed, thereby to perform an analog-to-digital converting operation.

Abstract translation: A / D转换器保证高转换精度，并且不仅在待机状态，而且在任何其他状态下都能降低功耗。 因此，减法电路被添加到A / D转换器获得参考电压和模拟信号之间的差异，并且使用作为参考电压存储的模拟信号。 该差异仅由用于转换较低位的A / D转换单元转换，并且设计用于停止空转转单元的操作的操作模式，从而进行模数转换操作。

公开(公告)号：US06369740B1

公开(公告)日：2002-04-09

申请号：US09429001

申请日：1999-10-29

Applicant: Eric J. Swanson

Inventor： Eric J. Swanson

IPC: H03M112

CPC classification number: H03M1/208 ,  H03M1/185 ,  H03M1/187

Abstract: A programmable gain preamplifier is provided which has a low temperature drift and good dynamic range characteristics. The programmable gain preamplifier may be coupled to an analog to digital converter. The analog to digital converter may be a switched capacitor array analog to digital converter. The analog to digital converter may be a resistor array and capacitor array analog to digital converter. A resistor string having contacts out of the resistor string current path may be utilized with the programmable gain preamplifier or the analog to digital converter or both. The resistor string may be utilized to calibrate the analog to digital converter or the programmable gain preamplifier or both. The resistor string may also be utilized by the analog to digital converter when conversions are being performed. The programmable gain preamplifier provides a programmable gain of the difference between two input signals (Ain and Ain′ for example). One of the input signals (Ain′) may be an estimation of the other input signal (Ain).

Abstract translation: 提供了一种可编程增益前置放大器，具有低温度漂移和良好的动态范围特性。 可编程增益前置放大器可以耦合到模数转换器。 模数转换器可以是开关电容阵列模数转换器。 模数转换器可以是电阻阵列和电容阵列模数转换器。 具有电阻串电流路径之外的触点的电阻串可以与可编程增益前置放大器或模数转换器或二者一起使用。 电阻串可用于校准模数转换器或可编程增益前置放大器或两者。 当执行转换时，电阻串也可以由模数转换器利用。 可编程增益前置放大器提供两个输入信号（例如Ain和Ain'）之间差异的可编程增益。 输入信号（Ain'）中的一个可以是另一个输入信号（Ain）的估计。

公开(公告)号：US20020000929A1

公开(公告)日：2002-01-03

申请号：US09897325

申请日：2001-07-02

Inventor： Matthew Cushman ,  Aleksander Ignjatovic

IPC: H03M001/12

CPC classification number: H03M1/0631 ,  G06F17/10 ,  H03H17/06 ,  H03M1/0881 ,  H03M1/207 ,  H03M1/208

Abstract: A signal processor and method of signal processing is disclosed. The signal processor includes a differentiator and an extrapolator coupled to the differentiator. The differentiator is configured to receive an input signal and to generate a vector. The input signal is band-limited. The vector includes at least one chromatic derivative. The extrapolator is coupled to the differentiator and is configured to generate an output signal.

Abstract translation: 公开了信号处理器和信号处理方法。 信号处理器包括耦合到微分器的微分器和外推器。 微分器被配置为接收输入信号并产生矢量。 输入信号是带限制的。 向量包括至少一个色差。 外推器被耦合到微分器并被配置为产生输出信号。

公开(公告)号：US5784017A

公开(公告)日：1998-07-21

申请号：US670696

申请日：1996-06-26

Applicant: Peter Graham Craven

Inventor： Peter Graham Craven

IPC: H03M1/08 ,  H03M1/10 ,  H03M1/20 ,  H03M1/50 ,  H03M1/82 ,  H03M3/02 ,  H03M3/04 ,  H03M1/00

CPC classification number: H03M1/1038 ,  H03M1/208 ,  H03M3/506 ,  H03M1/504 ,  H03M1/822

Abstract: A signal convertor comprising a pulse modulator, and a modifier for modifying the signal input thereto in dependence upon the error in previous values of the output thereof, to reduce the effects of said error within a desired signal band.

Abstract translation: 一种信号转换器，包括脉冲调制器和用于根据其输出的先前值的误差修改输入到其中的信号的修正器，以减少所需信号频带内的所述误差的影响。

公开(公告)号：US5311771A

公开(公告)日：1994-05-17

申请号：US860533

申请日：1992-03-30

Applicant: Paul M. Young

Inventor： Paul M. Young

IPC: F02D45/00 ,  F02D41/34 ,  F02P5/15 ,  F02P7/077 ,  G01B21/22 ,  G01D5/244 ,  G01D5/245 ,  H03M1/20 ,  H03M1/30 ,  G01M15/00

CPC classification number: G01D5/24404 ,  F02D41/009 ,  F02P5/1504 ,  F02P7/0775 ,  H03M1/208 ,  H03M1/303 ,  Y02T10/46

Abstract: In one aspect of the present invention, a method determines the rotational position of a crankshaft of an internal combustion engine. The method includes monitoring the rotation of the crankshaft and responsively producing a crankshaft pulsetrain. A clock signal is produced having a predetermined frequency. The clock signal and the crankshaft pulsetrain are received. Each pulse of the crankshaft pulsetrain is sampled, and responsively the period of each sampled pulse is determined. Signals representative of the determined pulse periods are produced. The method further includes receiving the determined pulse period signals, and responsively determining a value which is predictive of a period of the next pulse to be produced. A signal representative of the predictive value is produced, and the predictive value signal is received. An intermediate position signal based on the predictive value is produced. The intermediate position signal is representative of a predetermined angular rotation of the crankshaft.

Abstract translation: 在本发明的一个方面，一种方法确定内燃机的曲轴的旋转位置。 该方法包括监测曲轴的旋转并响应地产生曲轴脉冲串。 产生具有预定频率的时钟信号。 接收时钟信号和曲轴脉冲串。 曲轴脉冲串的每个脉冲被采样，并且响应地确定每个采样脉冲的周期。 产生代表所确定的脉冲周期的信号。 该方法还包括接收所确定的脉冲周期信号，以及响应地确定预测要产生的下一个脉冲的周期的值。 产生表示预测值的信号，接收预测值信号。 产生基于预测值的中间位置信号。 中间位置信号表示曲轴的预定角度旋转。

公开(公告)号：US20110018752A1

公开(公告)日：2011-01-27

申请号：US12899154

申请日：2010-10-06

Applicant: Masao TAKAYAMA ,  Kazuo Matsukawa ,  Yosuke Mitani ,  Shiro Dosho

Inventor： Masao TAKAYAMA ,  Kazuo Matsukawa ,  Yosuke Mitani ,  Shiro Dosho

IPC: H03M3/00 ,  H03M1/36

CPC classification number: H03M1/002 ,  H03M1/208 ,  H03M1/361

Abstract: In a flash A/D converter, a predictor predicts next analog input data based on a digital output signal from an A/D converter, and outputs prediction data. Based on the prediction data from the predictor, a controller turns on comparators having reference voltages near the prediction data, and in order to ensure a certain degree of A/D conversion accuracy even when the prediction fails, also turns on even-numbered comparators 103.2a (where a is 0 to 7), for example. In this manner, even when prediction of next analog input data fails, a 4-bit A/D converter can perform A/D conversion with 3-bit accuracy, while saving power consumption by reducing the number of comparators to be turned on.

Abstract translation: 在闪存A / D转换器中，预测器基于来自A / D转换器的数字输出信号预测下一个模拟输入数据，并输出预测数据。 基于来自预测器的预测数据，控制器打开具有靠近预测数据的参考电压的比较器，并且即使在预测失败时也确保一定程度的A / D转换精度，也打开偶数比较器103.2 a（其中a为0至7）。 以这种方式，即使当下一个模拟输入数据的预测失败时，四位A / D转换器也可以以3位精度执行A / D转换，同时通过减少比较器的数量来导通，从而节省功耗。

公开(公告)号：US20090290053A1

公开(公告)日：2009-11-26

申请号：US12124892

申请日：2008-05-21

Applicant: Dirk Hammerschmidt

Inventor： Dirk Hammerschmidt

IPC: H04N5/335

CPC classification number: H03M1/208 ,  G01D1/00 ,  G01R19/2506

Abstract: A predictive sensor readout is suitable for coupling to a sensor. The predictive sensor readout includes a sampling circuit, a predictor, and a preset circuit. The sampling circuit is configured to receive and over-sample previously digitized samples of signals previously input from the sensor. The predictor is coupled to the sampling circuit and is configured to receive the over-sampled digitized samples into a signal history and to generate a predicted input from the sensor based on the signal history. The preset circuit is coupled to the predictor and the sampling circuit and is configured to present the sampling circuit to receive the predicted input from the sensor prior to sampling an actual input from the sensor.

Abstract translation: 预测传感器读数适用于耦合到传感器。 预测传感器读出器包括采样电路，预测器和预设电路。 采样电路被配置为接收和过采样先前从传感器输入的信号的数字化样本。 预测器耦合到采样电路，并且被配置为将过采样的数字化样本接收到信号历史中，并且基于信号历史从传感器生成预测输入。 预设电路耦合到预测器和采样电路，并被配置为在采样来自传感器的实际输入之前呈现采样电路以接收来自传感器的预测输入。

公开(公告)号：US06590517B1

公开(公告)日：2003-07-08

申请号：US10061791

申请日：2002-02-01

Applicant: Eric J. Swanson

Inventor： Eric J. Swanson

IPC: H03M112

CPC classification number: H03M1/187 ,  H03M1/185 ,  H03M1/208

Abstract: An autoranging analog to digital conversion system is provided. The system may include a digitally programmable preamplifier for amplifying a difference between an analog input and an estimate of the analog input. The preamplifier may be coupled to an analog to digital converter for converting the preamplifier output to a digital signal. The system may also include digital domain predictor or estimation logic for determining an optimum gain and analog input estimate for a given analog input. Multiple signal input channels may be coupled to the analog to digital conversion system. The autoranging estimations may be performed on a sample by sample basis or a channel by channel basis. The conversion system may also include the use of a backup conversion path for use when the main conversion path overranges. The backup conversion path may utilize a dedicated backup converter. The backup conversion path may alternatively utilize the estimation converter to generate backup conversions or may utilize the main converter to generate backup conversions.

Abstract translation: 提供了一种自动量程模数转换系统。 该系统可以包括用于放大模拟输入和模拟输入的估计之间的差的数字可编程前置放大器。 前置放大器可以耦合到模数转换器，用于将前置放大器输出转换成数字信号。 该系统还可以包括用于确定给定模拟输入的最佳增益和模拟输入估计的数字域预测器或估计逻辑。 多个信号输入通道可以耦合到模数转换系统。 自动量程估计可以根据样本或逐个频道进行。 转换系统还可以包括使用备用转换路径，以便在主转换路径超出时使用。 备用转换路径可以利用专用备用转换器。 备选转换路径可以替代地使用估计转换器来产生备份转换，或者可以利用主转换器来生成备份转换。

公开(公告)号：US06232899B1

公开(公告)日：2001-05-15

申请号：US09451113

申请日：1999-11-30

Applicant: Peter Graham Craven

Inventor： Peter Graham Craven

IPC: H03M106

CPC classification number: H03M1/1038 ,  H03M1/208 ,  H03M1/504 ,  H03M1/822 ,  H03M3/506

Abstract: A signal convertor comprising a pulse modulator, and means for modifying the signal input thereto in dependence upon the error in previous values of the output thereof, to reduce the effects of said error within a desired signal band.

Abstract translation: 一种包括脉冲调制器的信号转换器，以及用于根据其输出的先前值的误差修改输入到其中的信号的装置，以减少所需信号频带内的所述误差的影响。

公开(公告)号：US5548286A

公开(公告)日：1996-08-20

申请号：US107842

申请日：1993-08-25

Applicant: Peter G. Craven

Inventor： Peter G. Craven

IPC: H03M1/08 ,  H03M1/10 ,  H03M1/20 ,  H03M1/50 ,  H03M1/82 ,  H03M3/02 ,  H03M3/04 ,  H03M1/06 ,  H03K7/08 ,  H03M1/12 ,  H03M1/66

CPC classification number: H03M1/1038 ,  H03M1/208 ,  H03M3/506 ,  H03M1/504 ,  H03M1/822

Abstract: A signal convertor comprising a pulse modulator, and a modifier for modifying the signal input thereto in dependence upon the error in previous values of the output thereof, to reduce the effects of said error within a desired signal band.

Abstract translation: PCT No.PCT / GB92 / 00312 Sec。 371日期：1993年8月25日 102（e）日期1993年8月25日PCT提交1992年2月21日PCT公布。 出版物WO92 / 15153 日期1992年9月3日一种包括脉冲调制器的信号转换器和用于根据其输出的先前值的误差来修改输入到其中的信号的修正器，以减少所需信号频带内的所述误差的影响。