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1. 发明授权

US08429981B2 Method of measuring a physical parameter and electronic interface circuit for a capacitive sensor for implementing the same 有权
标题翻译：测量电容传感器的物理参数和电子接口电路的实现方法
公开(公告)号：US08429981B2
公开(公告)日：2013-04-30
申请号：US12971403
申请日：2010-12-17
申请人： Sylvain Grosjean , Michel Willemin , Alexandre Deschildre , Beat Pfefferli
发明人： Sylvain Grosjean , Michel Willemin , Alexandre Deschildre , Beat Pfefferli
IPC分类号： G01B7/16
CPC分类号： G01P15/125 , G01D5/24
摘要： The measuring method is for measuring a physical parameter using an electronic interface circuit (1) for a capacitive sensor (2) with at least two capacitors (C1X, C2X) whose common electrode (CM) is mobile between the fixed electrodes. The electronic circuit includes an amplifier (4) connected to the common electrode (CM) by a switching unit (3), a logic unit (5) connected to the amplifier for supplying first and second digital measuring signals, and a digital-analogue converter (7) for supplying a measurement voltage (VDAC) to the electrodes on the basis of a conversion of one of the digital signals. The method consists in polarizing firstly the electrodes of the capacitors by the measurement voltage (VDAC) on the basis of the first digital signals, then polarizing the fixed electrode of the first capacitor (C1X) at a regulated voltage (VREG) and the fixed electrode of the second capacitor (C2X) at a low voltage (VSS), then polarizing the electrodes of the capacitors (C1X, C2X, CM) by the measurement voltage (VDAC) on the basis of the second digital measuring signal, and finally polarizing the fixed electrode of the first capacitor (C1X) at a low voltage (VSS) and the fixed electrode of the second capacitor (C2X) at a regulated voltage (VREG). At the end of the measuring cycles, the logic unit is able, on the basis of the first and second obtained digital measuring signals, to remove any voltage offset linked to the electronic components.
摘要翻译：该测量方法用于使用具有至少两个公共电极（CM）在固定电极之间移动的电容器（C1X，C2X）的电容式传感器（2）的电子接口电路（1）来测量物理参数。电子电路包括通过开关单元（3）连接到公共电极（CM）的放大器（4），连接到放大器的逻辑单元（5），用于提供第一和第二数字测量信号，以及数模转换器（7），用于基于数字信号之一的转换来向电极提供测量电压（VDAC）。该方法首先通过基于第一数字信号的测量电压（VDAC）首先偏置电容器的电极，然后以第一电容器（C1X）的固定电极以调节电压（VREG）和固定电极的第二电容器（C2X）的低电压（VSS），然后基于第二数字测量信号使电容器（C1X，C2X，CM）的电极偏移测量电压（VDAC），最后将低电压（VSS）的第一电容器（C1X）的固定电极和第二电容器（C2X）的固定电极处于调节电压（VREG）。在测量周期结束时，逻辑单元能够基于第一和第二获得的数字测量信号来去除与电子部件相关联的任何电压偏移。

2. 发明申请

US20110154906A1 METHOD OF MEASURING A PHYSICAL PARAMETER AND ELECTRONIC INTERFACE CIRCUIT FOR A CAPACITIVE SENSOR FOR IMPLEMENTING THE SAME 有权
标题翻译：用于实现其电容式传感器的物理参数和电子接口电路的测量方法
公开(公告)号：US20110154906A1
公开(公告)日：2011-06-30
申请号：US12971403
申请日：2010-12-17
申请人： Sylvain Grosjean , Michel Willemin , Alexandre Deschildre , Beat Pfefferli
发明人： Sylvain Grosjean , Michel Willemin , Alexandre Deschildre , Beat Pfefferli
IPC分类号： G01L1/14
CPC分类号： G01P15/125 , G01D5/24
摘要： The measuring method is for measuring a physical parameter by means of an electronic interface circuit (1) for a capacitive sensor (2) with at least two capacitors (C1X, C2X) whose common electrode (CM) is mobile between the fixed electrodes. The electronic circuit includes an amplifier (4) connected to the common electrode (CM) by a switching unit (3), a logic unit (5) connected to the amplifier for supplying first and second digital measuring signals, and a digital-analogue converter (7) for supplying a measurement voltage (VDAC) to the electrodes on the basis of a conversion of one of the digital signals. The method consists in polarising firstly the electrodes of the capacitors by the measurement voltage (VDAC) on the basis of the first digital signals, then polarising the fixed electrode of the first capacitor (C1X) at a regulated voltage (VREG) and the fixed electrode of the second capacitor (C2X) at a low voltage (VSS), then polarising the electrodes of the capacitors (C1X, C2X, CM) by the measurement voltage (VDAC) on the basis of the second digital measuring signal, and finally polarising the fixed electrode of the first capacitor (C1X) at a low voltage (VSS) and the fixed electrode of the second capacitor (C2X) at a regulated voltage (VREG). At the end of the measuring cycles, the logic unit is able, on the basis of the first and second obtained digital measuring signals, to remove any voltage offset linked to the electronic components.
摘要翻译：该测量方法用于通过具有至少两个公共电极（CM）在固定电极之间移动的电容器（C1X，C2X）的电容式传感器（2）的电子接口电路（1）来测量物理参数。电子电路包括通过开关单元（3）连接到公共电极（CM）的放大器（4），连接到放大器的逻辑单元（5），用于提供第一和第二数字测量信号，以及数模转换器（7），用于基于数字信号之一的转换来向电极提供测量电压（VDAC）。该方法首先通过基于第一数字信号的测量电压（VDAC）首先偏置电容器的电极，然后以第一电容器（C1X）的固定电极以调节电压（VREG）和固定电极的第二电容器（C2X）的低电压（VSS），然后基于第二数字测量信号使电容器（C1X，C2X，CM）的电极偏移测量电压（VDAC），最后将低电压（VSS）的第一电容器（C1X）的固定电极和第二电容器（C2X）的固定电极处于调节电压（VREG）。在测量周期结束时，逻辑单元能够基于第一和第二获得的数字测量信号来去除与电子部件相关联的任何电压偏移。

3. 发明授权

US08051711B2 Electronic circuit for measuring a physical parameter supplying an analogue measurement signal dependent upon the supply voltage 有权
标题翻译：用于测量根据电源电压提供模拟测量信号的物理参数的电子电路
公开(公告)号：US08051711B2
公开(公告)日：2011-11-08
申请号：US12207689
申请日：2008-09-10
申请人： Sylvain Grosjean , Michel Willemin , Beat Pfefferli
发明人： Sylvain Grosjean , Michel Willemin , Beat Pfefferli
IPC分类号： G01P15/00
CPC分类号： G01C19/00
摘要： The electronic circuit for measuring at least one physical parameter supplies an analogue output measurement signal (SA) dependent upon the value of a supply voltage. The circuit includes a sensor interface, connected to a sensor for supplying an analogue measurement signal (Vm) which is then filtered, an analogue-digital converter for digitally converting the filtered signal (Sm), and a digital signal control and processing unit for receiving a converted signal from the converter and supplying a digital measurement signal (SD). The sensor interface, the analogue-digital converter, and the processing unit are powered by a voltage regulator. The analogue and digital measurement signals are thus independent of any variation in the supply voltage (VCC) of the electronic circuit. A ratiometric unit, which may be an analogue multiplier or an analogue-digital converter, is powered by the supply voltage source (Bat) to recreate ratiometry on SA on the basis of Sm or SD.
摘要翻译：用于测量至少一个物理参数的电子电路根据电源电压的值提供模拟输出测量信号（SA）。电路包括传感器接口，连接到用于提供模拟测量信号（Vm）的传感器，然后被滤波，模数转换器用于对滤波信号（Sm）进行数字转换;以及数字信号控制和处理单元，用于接收来自转换器的转换信号并提供数字测量信号（SD）。传感器接口，模拟数字转换器和处理单元由电压调节器供电。因此，模拟和数字测量信号与电子电路的电源电压（VCC）的任何变化无关。可以是模拟乘法器或模拟数字转换器的比例单元由电源电压源（Bat）供电，以基于Sm或SD在SA上重建比率测量。

4. 发明申请

US20090066392A1 ELECTRONIC CIRCUIT FOR MEASURING A PHYSICAL PARAMETER SUPPLYING AN ANALOGUE MEASUREMENT SIGNAL DEPENDENT UPON THE SUPPLY VOLTAGE 有权
标题翻译：电子电路，用于测量根据供电电压提供模拟测量信号的物理参数
公开(公告)号：US20090066392A1
公开(公告)日：2009-03-12
申请号：US12207689
申请日：2008-09-10
申请人： Sylvain Grosjean , Michel Willemin , Beat Pfefferli
发明人： Sylvain Grosjean , Michel Willemin , Beat Pfefferli
IPC分类号： H03G99/00
CPC分类号： G01C19/00
摘要： The electronic circuit (1) for measuring at least one physical parameter supplies an analogue output measurement signal (SA) dependent upon the value of a supply voltage. The circuit includes a sensor interface (2) connected to a sensor (C) for supplying an analogue measurement signal (Vm) which is then filtered. The circuit further includes an analogue-digital converter (8) for digitally converting the filtered signal (Sm), a digital signal control and processing unit (9) for receiving a converted signal from the converter, and supplying a digital measurement signal (SD). The sensor interface, the analogue-digital converter and the processing unit (9) are powered by a regulated voltage supplied by a voltage regulator (4). The analogue and digital measurement signals are thus independent of any variation in the supply voltage (VCC) of the electronic unit. A ratiometric unit, which may be an analogue multiplier (5) or a digital-analogue converter, is powered for example by the supply voltage source (Bat) in order to recreate the ratiometry on an analogue output measurement signal (SA) on the basis of the analogue (Sm) or digital (SD) measurement signal.
摘要翻译：用于测量至少一个物理参数的电子电路（1）根据电源电压的值提供模拟输出测量信号（SA）。电路包括连接到传感器（C）的传感器接口（2），用于提供模拟测量信号（Vm），然后将其过滤。电路还包括用于数字转换滤波信号（Sm）的模数转换器（8），用于从转换器接收转换信号的数字信号控制和处理单元（9），并提供数字测量信号（SD）。传感器接口，模拟数字转换器和处理单元（9）由电压调节器（4）提供的调节电压供电。因此，模拟和数字测量信号与电子单元的电源电压（VCC）的任何变化无关。可以是模拟乘法器（5）或数模转换器的比例单元例如由电源电压源（Bat）供电，以便在模拟输出测量信号（SA）上重建比率测量的模拟（Sm）或数字（SD）测量信号。

5. 发明授权

US08629684B2 Electronic circuit with a capacitive sensor for measuring a physical parameter and method of activating the electronic circuit 有权
标题翻译：具有用于测量物理参数的电容式传感器的电子电路和激活电子电路的方法
公开(公告)号：US08629684B2
公开(公告)日：2014-01-14
申请号：US12720764
申请日：2010-03-10
申请人： Alexandre Deschildre , Sylvain Grosjean , Michel Willemin
发明人： Alexandre Deschildre , Sylvain Grosjean , Michel Willemin
IPC分类号： G01R27/26
CPC分类号： G01D5/2417 , G01P15/125
摘要： The electronic circuit has a capacitive sensor that includes two capacitors mounted in differential, whose common electrode can move relative to each fixed electrode of the two capacitors to alter the capacitive value of each capacitor. The electronic circuit has an interface connected to the capacitive sensor, which includes a charge transfer amplifier unit connected to the common electrode, an integrator unit, and an excitation unit arranged between the output of the first integrator unit and the sensor to polarise each fixed electrode of the sensor capacitors at a determined voltage value. A compensation capacitor is connected to the input of the integrator unit. The electronic circuit interface includes comparison means for comparing the output voltage with a comparison voltage to control disconnection of the compensation capacitor at the integrator unit input, if the deviation between the output voltage and the comparison voltage exceeds a determined voltage threshold.
摘要翻译：电子电路具有电容传感器，其包括安装在差动器中的两个电容器，其公共电极可相对于两个电容器的每个固定电极移动，以改变每个电容器的电容值。电子电路具有连接到电容传感器的接口，其包括连接到公共电极的电荷传输放大器单元，积分器单元和布置在第一积分器单元的输出和传感器之间的激励单元，以使每个固定电极的传感器电容器以确定的电压值。补偿电容器连接到积分器单元的输入。如果输出电压和比较电压之间的偏差超过确定的电压阈值，则电子电路接口包括用于比较输出电压和比较电压以控制补偿电容器在积分器单元输入端的断开的比较装置。

6. 发明申请

US20100231237A1 ELECTRONIC CIRCUIT WITH A CAPACITIVE SENSOR FOR MEASURING A PHYSICAL PARAMETER AND METHOD OF ACTIVATING THE ELECTRONIC CIRCUIT 有权
标题翻译：具有用于测量物理参数的电容式传感器的电子电路和用于激活电子电路的方法
公开(公告)号：US20100231237A1
公开(公告)日：2010-09-16
申请号：US12720764
申请日：2010-03-10
申请人： Alexandre Deschildre , Sylvain Grosjean , Michel Willemin
发明人： Alexandre Deschildre , Sylvain Grosjean , Michel Willemin
IPC分类号： G01R27/26
CPC分类号： G01D5/2417 , G01P15/125
摘要： The electronic circuit (1) with a capacitive sensor (2) is used for measuring a physical parameter, such as an acceleration. The sensor includes two capacitors mounted in differential, whose common electrode (Cm) can move relative to each fixed electrode of the two capacitors to alter the capacitive value of each capacitor. The electronic circuit has an interface connected to the capacitive sensor, which includes a charge transfer amplifier unit (4) connected to the common electrode (Cm), an integrator unit (5) for integrating the charges supplied by the charge transfer amplifier unit, and an excitation unit (3) arranged between the output of the first integrator unit and the sensor to polarise each fixed electrode of the sensor capacitors at a determined voltage value. A compensation capacitor (Cc) is connected to the input of the integrator unit. The electronic circuit (1) interface includes comparison means (30) for comparing the output voltage (Vm) with a comparison voltage (Vc) so as to control disconnection of the compensation capacitor at the integrator unit (5) input, if the deviation between the output voltage (Vm) and the comparison voltage (Vc) is above a determined voltage threshold.
摘要翻译：具有电容传感器（2）的电子电路（1）用于测量诸如加速度的物理参数。该传感器包括两个安装在差分电容器中的电容器，其公共电极（Cm）可相对于两个电容器的每个固定电极移动，以改变每个电容器的电容值。电子电路具有连接到电容传感器的接口，其包括连接到公共电极（Cm）的电荷传输放大器单元（4），用于对由电荷传输放大器单元提供的电荷进行积分的积分器单元（5）和激励单元（3），布置在第一积分器单元的输出端与传感器之间，以确定的电压值使传感器电容器的每个固定电极偏振。补偿电容器（Cc）连接到积分器单元的输入端。电子电路（1）接口包括比较装置（30），用于将输出电压（Vm）与比较电压（Vc）进行比较，以便控制积分器单元（5）输入端的补偿电容器的断开，输出电压（Vm）和比较电压（Vc）高于确定的电压阈值。

7. 发明申请

US20070216423A1 ELECTRONIC INTERFACE CIRCUIT FOR A CAPACITIVE SENSOR FOR MEASURING A PHYSICAL PARAMETER, AND METHOD FOR ACTIVATING THE ELECTRONIC CIRCUIT 有权
标题翻译：用于测量物理参数的电容式传感器的电子接口电路，以及用于激活电子电路的方法
公开(公告)号：US20070216423A1
公开(公告)日：2007-09-20
申请号：US11686552
申请日：2007-03-15
申请人： Sylvain Grosjean , Michel Willemin
发明人： Sylvain Grosjean , Michel Willemin
IPC分类号： G01R27/26
CPC分类号： G01P15/125 , G01D5/24
摘要： The electronic interface circuit (1) of a capacitive sensor (2) is used for measuring a physical parameter, such as an acceleration. The sensor includes two differential mounted capacitors (C1, C2) whose common electrode (Cm) can move relative to each other fixed electrode in order to alter the capacitive value of each capacitor. The electronic circuit includes a charge transfer amplifier unit (4) connected to the common electrode (Cm), a first integrator unit (5) for integrating the charges supplied by the charge transfer amplifier and a first excitation unit (3) arranged between the output of the first integrator unit and the sensor for polarizing each fixed electrode of the capacitors to a determined voltage value. The electronic circuit also includes a second integrator unit (7) for integrating the charges supplied by the charge transfer amplifier and a second excitation unit (6) arranged between the output of the second integrator unit and the sensor for polarizing each fixed electrode of the capacitors at an opposite voltage value to the voltage value controlled by the first excitation unit. The first and second integrator units are arranged to operate alternately by measuring period or cycle, and the first and second excitation units are arranged to operate alternately by measuring period or cycle each with their respective integrator unit. Thus, the electronic circuit operates entirely symmetrically for measuring the physical parameter.
摘要翻译：电容式传感器（2）的电子接口电路（1）用于测量加速度等物理参数。该传感器包括两个差分安装电容器（C 1，C 2），其公共电极（Cm）可以相对于彼此固定电极移动，以便改变每个电容器的电容值。电子电路包括连接到公共电极（Cm）的电荷传输放大器单元（4），用于对由电荷传输放大器提供的电荷进行积分的第一积分器单元（5）和布置在输出端的第一积分器单元和用于将每个电容器的每个固定电极偏振到所确定的电压值的传感器。电子电路还包括用于对由电荷传输放大器提供的电荷进行积分的第二积分器单元（7）和布置在第二积分器单元的输出端和传感器之间的第二激励单元（6），用于使电容器的每个固定电极与由第一激励单元控制的电压值相反的电压值。第一和第二积分器单元被布置成通过测量周期或周期来交替操作，并且第一和第二激励单元被布置成通过以各自的积分器单元测量周期或周期来交替地操作。因此，电子电路完全对称地操作以测量物理参数。

8. 发明授权

US07724000B2 Method of automatically testing an electronic circuit with a capacitive sensor and electronic circuit for the implementation of the same 有权
标题翻译：用电容式传感器和电子电路自动测试电子电路的方法实现相同
公开(公告)号：US07724000B2
公开(公告)日：2010-05-25
申请号：US12035286
申请日：2008-02-21
申请人： Sylvain Grosjean , Michel Willemin
发明人： Sylvain Grosjean , Michel Willemin
IPC分类号： G01R27/26
CPC分类号： G01D5/24 , G01D18/00 , G01P21/00
摘要： A method for automatically testing an electronic circuit with a capacitive sensor having two capacitors is provided, wherein the common electrode of the capacitors moves relative to each fixed electrode. The electronic circuit includes a sensor interface that includes a charge transfer amplifier unit, an integrator unit connected to the amplifier unit to provide measurement output voltage, and an excitation unit. The excitation unit inversely polarizes each fixed electrode at high or low voltage or discharges the capacitors. The method includes several successive measurement cycles each divided into a first phase discharging capacitors by output voltage and a second phase for polarizing the fixed electrode of the first capacitor at high voltage and inversely polarizing the fixed electrode of the second capacitor at low voltage. In the measuring cycles, a test phase replaces a second polarizing phase in at least one cycle in every two successive measurement cycles.
摘要翻译：提供一种用具有两个电容器的电容传感器自动测试电子电路的方法，其中电容器的公共电极相对于每个固定电极移动。电子电路包括传感器接口，其包括电荷传输放大器单元，连接到放大器单元以提供测量输出电压的积分器单元和激励单元。励磁单元在高电压或低电压下对每个固定电极进行反极化或放电电容器。该方法包括几个连续的测量循环，每个测量周期被分成通过输出电压的第一相放电电容器和用于在高电压下偏振第一电容器的固定电极的第二相，并且以低电压使第二电容器的固定电极反向极化。在测量周期中，测试阶段在每两个连续的测量循环中至少在一个循环中替代第二个极化相。

9. 发明申请

US20080197861A1 METHOD OF AUTOMATICALLY TESTING AN ELECTRONIC CIRCUIT WITH A CAPACITIVE SENSOR AND ELECTRONIC CIRCUIT FOR THE IMPLEMENTATION OF THE SAME 有权
标题翻译：用电容式传感器和电子电路自动测试电子电路的方法实现其
公开(公告)号：US20080197861A1
公开(公告)日：2008-08-21
申请号：US12035286
申请日：2008-02-21
申请人： Sylvain Grosjean , Michel Willemin
发明人： Sylvain Grosjean , Michel Willemin
IPC分类号： G01R27/26
CPC分类号： G01D5/24 , G01D18/00 , G01P21/00
摘要： A method for automatically testing an electronic circuit with a capacitive sensor having two capacitors is provided, wherein the common electrode of the capacitors moves relative to each fixed electrode. The electronic circuit includes a sensor interface that includes a charge transfer amplifier unit, an integrator unit connected to the amplifier unit to provide measurement output voltage, and an excitation unit. The excitation unit inversely polarizes each fixed electrode at high or low voltage or discharges the capacitors. The method includes several successive measurement cycles each divided into a first phase discharging capacitors by output voltage and a second phase for polarizing the fixed electrode of the first capacitor at high voltage and inversely polarizing the fixed electrode of the second capacitor at low voltage. In the measuring cycles, a test phase replaces a second polarizing phase in at least one cycle in every two successive measurement cycles.
摘要翻译：提供一种用具有两个电容器的电容传感器自动测试电子电路的方法，其中电容器的公共电极相对于每个固定电极移动。电子电路包括传感器接口，其包括电荷传输放大器单元，连接到放大器单元以提供测量输出电压的积分器单元和激励单元。励磁单元在高电压或低电压下对每个固定电极进行反极化或放电电容器。该方法包括几个连续的测量循环，每个测量周期被分成通过输出电压的第一相放电电容器和用于在高电压下偏振第一电容器的固定电极的第二相，并且以低电压使第二电容器的固定电极反向极化。在测量周期中，测试阶段在每两个连续的测量循环中至少在一个循环中替代第二个极化相。

10. 发明授权

US08294672B2 Single fault laser driver control for optical mouse 有权
标题翻译：光电鼠标的单故障激光驱动控制
公开(公告)号：US08294672B2
公开(公告)日：2012-10-23
申请号：US11609609
申请日：2006-12-12
申请人： Sylvain Grosjean , Michel Willemin , James Harold Lauffenburger , Gil Afriat , Kevin Scott Buescher , Lawrence Bieber
发明人： Sylvain Grosjean , Michel Willemin , James Harold Lauffenburger , Gil Afriat , Kevin Scott Buescher , Lawrence Bieber
IPC分类号： G06F3/033 , G09G5/08 , H01S3/13 , H01S3/00
CPC分类号： G06F3/0317
摘要： The invention concerns an optical pointing device comprising a coherent light source for illuminating a surface portion with radiation, a driver of the coherent light source for controlling coherent light emissions, a photodetector device responsive to radiation reflected from the illuminated surface portion, processing means for determining, based on the photodetector device response, a measurement of relative motion between the optical pointing device and the illuminated portion of the surface, wherein the coherent light source driver is a fault-tolerant driver comprising redundant power control means for limiting the output power of coherent light emissions.
摘要翻译：本发明涉及一种光学指向装置，其包括用于用辐射照射表面部分的相干光源，用于控制相干光发射的相干光源的驱动器，响应于从被照射的表面部分反射的辐射的光电检测器装置，用于确定基于所述光电检测器装置响应，测量所述光学指向装置与所述表面的被照亮部分之间的相对运动，其中所述相干光源驱动器是容错驱动器，其包括用于限制相干的输出功率的冗余功率控制装置轻量化排放。

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