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1. 发明授权

US07054687B1 Method and apparatus for position and motion sensing 有权
公开(公告)号：US07054687B1
公开(公告)日：2006-05-30
申请号：US10232044
申请日：2002-08-29
申请人： Dean Andersen , Marc Ryat
发明人： Dean Andersen , Marc Ryat
IPC分类号： A61N1/18
CPC分类号： A61B5/1118 , A61B5/1112 , A61B5/1116 , A61N1/36542
摘要： An apparatus for extracting activity information and position information from a composite signal generated by a motion sensor includes an analog to digital converter for converting the composite signal from analog to digital format. A wide-band low pass filter having a frequency response of about zero hertz to about ten hertz and a narrow low pass filter having a frequency response of about zero hertz to about 0.5 hertz filter the digitized composite signal. An adder subtracts the output of the narrow-band low pass filter from the output of the wide-band low pass filter. The resulting difference represents information regarding the activity level of the motion sensor, and the output of the narrow-band low pass filter represents information regarding the position of the sensor.

2. 发明授权

US06477421B1 Method and apparatus for position and motion sensing 有权
标题翻译：位置和运动检测方法和装置
公开(公告)号：US06477421B1
公开(公告)日：2002-11-05
申请号：US09513206
申请日：2000-02-24
申请人： Dean Andersen , Marc Ryat
发明人： Dean Andersen , Marc Ryat
IPC分类号： A61N118
CPC分类号： A61B5/1118 , A61B5/1112 , A61B5/1116 , A61N1/36542
摘要： An apparatus for extracting activity information and position information from a composite signal generated by a motion sensor includes an analog to digital converter for converting the composite signal from analog to digital format. A wide-band low pass filter having a frequency response of about zero hertz to about ten hertz and a narrow low pass filter having a frequency response of about zero hertz to about 0.5 hertz filter the digitized composite signal. An adder subtracts the output of the narrow-band low pass filter from the output of the wide-band low pass filter. The resulting difference represents information regarding the activity level of the motion sensor, and the output of the narrow-band low pass filter represents information regarding the position of the sensor.
摘要翻译：用于从由运动传感器生成的复合信号中提取活动信息和位置信息的装置包括用于将复合信号从模数转换成数字格式的模数转换器。具有大约零赫兹到大约10赫兹的频率响应的宽带低通滤波器和具有大约零赫兹到约0.5赫兹的频率响应的窄低通滤波器对数字化复合信号进行滤波。加法器从宽带低通滤波器的输出中减去窄带低通滤波器的输出。所得到的差异表示关于运动传感器的活动水平的信息，并且窄带低通滤波器的输出表示关于传感器的位置的信息。

3. 发明授权

US06356085B1 Method and apparatus for converting capacitance to voltage 有权
标题翻译：用于将电容转换成电压的方法和装置
公开(公告)号：US06356085B1
公开(公告)日：2002-03-12
申请号：US09566908
申请日：2000-05-09
申请人： Marc Ryat , Dean Andersen
发明人： Marc Ryat , Dean Andersen
IPC分类号： G01R2726
CPC分类号： G01R27/2605 , G01N27/228 , H03M3/434
摘要： An apparatus for converting capacitance in a capacitive sensor into a voltage signal. A capacitive sensor monitors a physical parameter. A capacitance of the sensor varies with the physical parameter. A voltage supply applies an alternating voltage to the capacitive sensor, which creates an output signal from the sensor. A modulator modulates the output signal, which produces a voltage signal that corresponds to the capacitance of the sensor.
摘要翻译：一种用于将电容式传感器中的电容转换成电压信号的装置。电容传感器监测物理参数。传感器的电容随物理参数而变化。电压源向电容传感器施加交流电压，从而产生来自传感器的输出信号。调制器调制输出信号，产生对应于传感器电容的电压信号。

4. 发明授权

US5498952A Precise current generator 失效
标题翻译：精密电流发生器
公开(公告)号：US5498952A
公开(公告)日：1996-03-12
申请号：US950091
申请日：1992-09-23
申请人： Marc Ryat
发明人： Marc Ryat
IPC分类号： G05F3/26 , H03F3/343 , G05F3/16
CPC分类号： G05F3/265 , H03F3/343 , H03F2200/261
摘要： A current generator which includes a first bipolar transistor, the base of which is connected to a reference voltage and the emitter to ground through a first resistor. A first current mirror is connected to mirror the emitter current of this first transistor. The mirrored current is augmented by the base current of a second transistor (matched to the first transistor), and by current Vbe/R passed by a second resistor (matched to the first transistor), which is connected between the base and emitter of the second transistor. The current thus augmented drives a second current mirror. The output of the second mirror provides a precise reference current, determined by the reference voltage and the resistor magnitude.
摘要翻译：一种电流发生器，其包括第一双极晶体管，其基极连接到参考电压，并且发射极通过第一电阻器接地。第一电流镜被连接以镜像该第一晶体管的发射极电流。镜像电流由第二晶体管（与第一晶体管相匹配）的基极电流和通过与第二晶体管的基极和发射极连接的第二电阻器（匹配于第一晶体管）的电流Vbe / R增大第二晶体管。如此增加的电流驱动第二电流镜。第二反射镜的输出提供精确的参考电流，由参考电压和电阻大小决定。

5. 发明授权

US4829231A Current mirror having a high output voltage 失效
标题翻译：具有高输出电压的电流镜
公开(公告)号：US4829231A
公开(公告)日：1989-05-09
申请号：US184321
申请日：1988-04-21
申请人： Jean-Denis Coupe , Marc Ryat , Philippe Raguet , Jean-Paul Bardyn
发明人： Jean-Denis Coupe , Marc Ryat , Philippe Raguet , Jean-Paul Bardyn
IPC分类号： G05F3/26
CPC分类号： G05F3/265
摘要： A current mirror that comprises a first branch which includes the series arrangement of a diode (D.sub.1) and the main current path of a transistor (T.sub.1), and a second branch comprising the series arrangement of the main current path of a transistor (T.sub.2) and a diode (D.sub.2). In order to increase the voltage Vs available at the current mirror output, a diode (D.sub.3) is connected in the first branch and a transistor (T.sub.3) is connected in the second branch. One electrode of the diode (D.sub.3) is connected to the base of a transistor (T.sub.4), whose collector receives a supply voltage (U) and whose emitter is connected to the base of the transistor (T.sub.2). The base of the transistor (T.sub.1) is connected to one electrode of the diode (D.sub.2) and to the emitter of the transistor (T.sub.2). A diode (D.sub.4) is poled in the forward direction between the power-supply source U and the base of the transistor (T.sub.3). A diode Z, is poled in the reverse direction, is connected between the base of the transistor (T.sub.3) and the emitter of the transistor (T.sub.2) to allow the transistor T.sub.3 to be operated in the B.sub.VCBO mode when the diode is conductive.
摘要翻译：一种电流镜，包括包括二极管（D1）和晶体管（T1）的主电流路径的串联布置的第一分支，以及包括晶体管（T2）的主电流路径的串联布置的第二分支，和二极管（D2）。为了增加电流镜输出端可用的电压Vs，在第一分支中连接二极管（D3），在第二分支中连接晶体管（T3）。二极管（D3）的一个电极连接到晶体管（T4）的基极，晶体管（T4）的集电极接收电源电压（U），其发射极连接到晶体管（T2）的基极。晶体管（T1）的基极连接到二极管（D2）的一个电极和晶体管（T2）的发射极。二极管（D4）在电源U与晶体管（T3）的基极之间向正方向极化。二极管Z在反方向极化，连接在晶体管（T3）的基极和晶体管（T2）的发射极之间，以允许晶体管T3在二极管导通时以BVCBO模式工作。

6. 发明授权

US5208552A Rail to rail operational transconductance amplifier 失效
标题翻译：铁路运行的交叉放大器
公开(公告)号：US5208552A
公开(公告)日：1993-05-04
申请号：US834059
申请日：1992-02-11
申请人： Marc Ryat
发明人： Marc Ryat
IPC分类号： H03F3/45
CPC分类号： H03F3/45708 , H03F3/4521 , H03F2203/45658
摘要： A transconductance amplifier comprises two complementary differential amplifiers at the input (T1a,T2a; T1b,T2b), the quiescent currents of which are fixed by two current sources (Ia, Ib), respectively. The transconductance amplifier has a first operating range where the two differential amplifiers are active and second and third operating ranges where only one differential amplifier is active. Means (T3a,T4a,Iaa; T3b,T4b,Ibb) are provided for deriving a predetermined fraction of the currents provided by the current sources to the differential amplifiers, the means being respectively in one of the second or third ranges and the predetermined fraction being such that the transconductance of the active transistors in one of the second or third ranges is equal to twice the transconductance of the transistors in the first range.
摘要翻译：跨导放大器包括在输入端（T1a，T2a; T1b，T2b）上的两个互补差分放大器，其静态电流分别由两个电流源（Ia，Ib）固定。跨导放大器具有第一工作范围，其中两个差分放大器是有效的，而第二和第三工作范围只有一个差分放大器是有效的。提供装置（T3a，T4a，Iaa; T3b，T4b，Ibb）用于将由电流源提供的电流的预定分数导出到差分放大器，该装置分别在第二或第三范围中的一个和预定分数使得在第二或第三范围中的一个中的有源晶体管的跨导等于晶体管在第一范围内的跨导的两倍。

7. 发明授权

US5451859A Linear transconductors 失效
标题翻译：线性导体
公开(公告)号：US5451859A
公开(公告)日：1995-09-19
申请号：US31647
申请日：1993-03-15
申请人： Marc Ryat
发明人： Marc Ryat
IPC分类号： G05F3/26 , H03F3/343 , G05F3/16
CPC分类号： H03F3/343 , G05F3/265 , H03F2200/261
摘要： An integrated transconductor circuit in which the input transistor(s) passes a current across a reference resistor. This conventional arrangement produces current error terms of Vbe/R and Ib. According to the present invention, these terms are compensated by providing a compensation resistor which is matched to the first resistor, and a compensation transistor which is matched to the input transistor, interconnected to feed the appropriate current components to the output. For even better compensation, an additional transistor is optionally added to remove the effect of base current of the compensation transistor. In differential embodiments, the compensation resistor may be bridged or split. Zero, one, or more stages of current mirroring can optionally be used to provide the desired output.
摘要翻译：一种集成的跨导电路，其中输入晶体管通过参考电阻器上的电流。这种常规布置产生了Vbe / R和Ib的电流误差项。根据本发明，通过提供与第一电阻器匹配的补偿电阻器和与输入晶体管相匹配的补偿晶体管来补偿这些术语，互补以将适当的电流分量馈送到输出。为了获得更好的补偿，可以添加额外的晶体管来消除补偿晶体管的基极电流的影响。在差分实施例中，补偿电阻器可以桥接或分离。可以可选地使用零级，一级或更多级的当前镜像来提供期望的输出。

8. 发明授权

US5825167A Linear transconductors 失效
公开(公告)号：US5825167A
公开(公告)日：1998-10-20
申请号：US885059
申请日：1997-06-30
申请人： Marc Ryat
发明人： Marc Ryat
IPC分类号： G05F3/26 , H03F3/343 , G05F3/16
CPC分类号： G05F3/265 , H03F3/343
摘要： An integrated transconductor circuit in which the input transistor(s) passes a current across a reference resistor. This conventional arrangement produces current error terms of Vbe/R and Ib. According to the present invention, these terms are compensated by providing a compensation resistor which is matched to the first resistor, and a compensation transistor which is matched to the input transistor, interconnected to feed the appropriate current components to the output. For even better compensation, an additional transistor is optionally added to remove the effect of base current of the compensation transistor. In differential embodiments, the compensation resistor may be bridged or split. Zero, one, or more stages of current mirroring can optionally be used to provide the desired output.

9. 发明授权

US5684393A Linear transconductors 失效
标题翻译：线性导体
公开(公告)号：US5684393A
公开(公告)日：1997-11-04
申请号：US457465
申请日：1995-06-01
申请人： Marc Ryat
发明人： Marc Ryat
IPC分类号： G05F3/26 , H03F3/343 , G05F3/16
CPC分类号： H03F3/343 , G05F3/265 , H03F2200/261
摘要： An integrated transconductor circuit in which the input transistor(s) passes a current across a reference resistor. This conventional arrangement produces current error terms of Vbe/R and Ib. According to the present invention, these terms are compensated by providing a compensation resistor which is matched to the first resistor, and a compensation transistor which is matched to the input transistor, interconnected to feed the appropriate current components to the output. For even better compensation, an additional transistor is optionally added to remove the effect of base current of the compensation transistor. In differential embodiments, the compensation resistor may be bridged or split. Zero, one, or more stages of current mirroring can optionally be used to provide the desired output.
摘要翻译：一种集成的跨导电路，其中输入晶体管通过参考电阻器上的电流。这种常规布置产生了Vbe / R和Ib的电流误差项。根据本发明，通过提供与第一电阻器匹配的补偿电阻器和与输入晶体管匹配的补偿晶体管来补偿这些术语，互补以将适当的电流分量馈送到输出。为了获得更好的补偿，可以添加额外的晶体管来消除补偿晶体管的基极电流的影响。在差分实施例中，补偿电阻器可以桥接或分离。可以可选地使用零级，一级或更多级的当前镜像来提供期望的输出。

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