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1. 发明授权

US09128573B2 High signal to noise ratio capacitive sensing analog front-end 有权
标题翻译：高信噪比电容式感应模拟前端
公开(公告)号：US09128573B2
公开(公告)日：2015-09-08
申请号：US13619328
申请日：2012-09-14
申请人： Paolo Angelini , Giovanni Carlo Tripoli , Ernesto Lasalandra , Tommaso Ungaretti , Kien Beng Tan , Yannick Guedon , Dianbo Guo , Sze-Kwang Tan
发明人： Paolo Angelini , Giovanni Carlo Tripoli , Ernesto Lasalandra , Tommaso Ungaretti , Kien Beng Tan , Yannick Guedon , Dianbo Guo , Sze-Kwang Tan
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0416
摘要： Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.
摘要翻译：提供电容感测电路和方法。电容感测电路包括：电容 - 电压转换器，被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器，被配置为转换电容 - 电压的输出信号转换器到感测的电压，代表要感测的电容;模拟累加器，被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值，被配置为放大所累积的模拟值的放大器和模拟配置为将放大的累积模拟值转换为表示要感测的电容的数字值。模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。

2. 发明申请

US20150145801A1 HIGH SIGNAL TO NOISE RATIO CAPACITIVE SENSING ANALOG FRONT-END 有权
标题翻译：高信号噪声比电容式传感模拟前端
公开(公告)号：US20150145801A1
公开(公告)日：2015-05-28
申请号：US13619328
申请日：2012-09-14
申请人： Paolo Angelini , Giovanni Carlo Tripoli , Ernesto Lasalandra , Tommaso Ungaretti , Kien Beng Tan , Yannick Guedon , Dianbo Guo , Sze-Kwang Tan
发明人： Paolo Angelini , Giovanni Carlo Tripoli , Ernesto Lasalandra , Tommaso Ungaretti , Kien Beng Tan , Yannick Guedon , Dianbo Guo , Sze-Kwang Tan
IPC分类号： G06F3/044
CPC分类号： G06F3/044 , G06F3/0416
摘要： Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.
摘要翻译：提供电容感测电路和方法。电容感测电路包括：电容 - 电压转换器，被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器，被配置为转换电容 - 电压的输出信号转换器到感测的电压，代表要感测的电容;模拟累加器，被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值，被配置为放大所累积的模拟值的放大器和模拟配置为将放大的累积模拟值转换为表示要感测的电容的数字值。模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。

3. 发明授权

US08661871B2 Method for testing a microelectromechanical device, microelectromechanical device 有权
标题翻译：用于测试微机电装置的方法，微机电装置
公开(公告)号：US08661871B2
公开(公告)日：2014-03-04
申请号：US12846507
申请日：2010-07-29
申请人： Giovanni Carlo Tripoli , Tommaso Ungaretti , Ernesto Lasalandra
发明人： Giovanni Carlo Tripoli , Tommaso Ungaretti , Ernesto Lasalandra
IPC分类号： G12B13/00
CPC分类号： G01C19/56 , G01P15/125 , G01P21/00 , G01P2015/0814
摘要： Described herein is a method for testing a microelectromechanical device provided with a microstructure having a fixed structure and a movable mass, which is capacitively coupled to the fixed structure and mechanically connected thereto so as to be movable between a rest position and at least one position of maximum extension. The method envisages: applying a test voltage between the movable mass and the fixed structure so as to set up an electrostatic force between them and displace the movable mass into the position of maximum extension; keeping the movable mass in the position of maximum extension for a time interval; releasing the movable mass from the position of maximum extension; and detecting a current position of the movable mass.
摘要翻译：本文描述了一种用于测试具有固定结构的微结构的微机电装置和可移动质量块的方法，所述微结构具有电容耦合到固定结构并机械连接到其上，以便可在静止位置与至少一个位置之间移动最大延长该方法设想：在可移动物体和固定结构之间施加测试电压，以便在它们之间建立静电力并将可移动物质移动到最大延伸的位置; 将可移动质量块保持在最大延伸位置一段时间间隔; 从最大延伸位置释放可移动物料; 并且检测可移动质量块的当前位置。

4. 发明申请

US20110023605A1 METHOD FOR TESTING A MICROELECTROMECHANICAL DEVICE, AND MICROELECTROMECHANICAL DEVICE 有权
标题翻译：微电子设备测试方法和微电子设备
公开(公告)号：US20110023605A1
公开(公告)日：2011-02-03
申请号：US12846507
申请日：2010-07-29
申请人： Giovanni Carlo Tripoli , Tommaso Ungaretti , Ernesto Lasalandra
发明人： Giovanni Carlo Tripoli , Tommaso Ungaretti , Ernesto Lasalandra
IPC分类号： G01P15/125
CPC分类号： G01C19/56 , G01P15/125 , G01P21/00 , G01P2015/0814
摘要： Described herein is a method for testing a microelectromechanical device provided with a microstructure having a fixed structure and a movable mass, which is capacitively coupled to the fixed structure and mechanically connected thereto so as to be movable between a rest position and at least one position of maximum extension. The method envisages: applying a test voltage between the movable mass and the fixed structure so as to set up an electrostatic force between them and displace the movable mass into the position of maximum extension; keeping the movable mass in the position of maximum extension for a time interval; releasing the movable mass from the position of maximum extension; and detecting a current position of the movable mass.
摘要翻译：本文描述了一种用于测试具有固定结构的微结构的微机电装置和可移动质量块的方法，所述微结构具有电容耦合到固定结构并机械连接到其上，以便可在静止位置与至少一个位置之间移动最大延长该方法设想：在可移动物体和固定结构之间施加测试电压，以便在它们之间建立静电力并将可移动物质移动到最大延伸的位置; 将可移动质量块保持在最大延伸位置一段时间间隔; 从最大延伸位置释放可移动物料; 并且检测可移动质量块的当前位置。

5. 发明授权

US07802476B2 Free fall detector device and free fall detection method 有权
标题翻译：自由落体检测装置和自由落体检测方法
公开(公告)号：US07802476B2
公开(公告)日：2010-09-28
申请号：US11625124
申请日：2007-01-19
申请人： Ernesto Lasalandra , Tommaso Ungaretti
发明人： Ernesto Lasalandra , Tommaso Ungaretti
IPC分类号： G01P15/125
CPC分类号： G11B19/043 , G01P15/0891 , G01P15/125 , G01P15/131 , G01P15/18 , G11B21/12
摘要： A free-fall detector device includes an inertial sensor, a detection circuit associated to the inertial sensor, and a signal source for supplying a read signal to the inertial sensor. The device moreover includes: a storage element, selectively connectable to the detection circuit for storing a feedback signal generated by the detection circuit in response to the read signal supplied to the inertial sensor; and a feedback circuit coupled to the storage element for supplying the feedback signal to the inertial sensor so that the detection circuit generates at least one detection signal in response to the feedback signal supplied to the inertial sensor.
摘要翻译：自由落体检测器装置包括惯性传感器，与惯性传感器相关联的检测电路和用于向惯性传感器提供读取信号的信号源。该装置还包括：存储元件，可选择地连接到检测电路，用于响应于提供给惯性传感器的读取信号而存储由检测电路产生的反馈信号; 以及耦合到存储元件的反馈电路，用于将反馈信号提供给惯性传感器，使得检测电路响应于提供给惯性传感器的反馈信号而生成至少一个检测信号。

6. 发明授权

US06753691B2 Method and circuit for detecting displacements using micro-electromechanical sensors with compensation of parasitic capacitances and spurious displacements 有权
标题翻译：使用微机电传感器检测位移的方法和电路，补偿寄生电容和杂散位移
公开(公告)号：US06753691B2
公开(公告)日：2004-06-22
申请号：US10198721
申请日：2002-07-16
申请人： Ernesto Lasalandra , Tommaso Ungaretti , Andrea Baschirotto
发明人： Ernesto Lasalandra , Tommaso Ungaretti , Andrea Baschirotto
IPC分类号： G01R2726
CPC分类号： G01D5/2417 , G01D3/066 , G01D5/24 , G01P15/125 , G01P15/131 , G01P2015/0814
摘要： A method for detecting displacements of a micro-electromechanical sensor including a fixed body and a mobile mass, and forming a first sensing capacitor and a second sensing capacitor having a common capacitance at rest. The first and second sensing capacitors being connected to a first input terminal and, respectively, to a first output terminal and to a second output terminal of the sensing circuit. The method includes the steps of closing a first negative-feedback loop, which is formed by the first and second sensing capacitors and by a differential amplifier, feeding an input of the differential amplifier with a staircase sensing voltage through driving capacitors so as to produce variations of an electrical driving quantity which are inversely proportional to the common sensing capacitance, and driving the sensor with the electrical driving quantity.
摘要翻译：一种用于检测包括固定体和移动质量块的微机电传感器的位移的方法，以及形成第一感测电容器和具有静止的公共电容的第二感测电容器。第一和第二感测电容器分别连接到第一输入端，分别连接到感测电路的第一输出端和第二输出端。该方法包括以下步骤：关闭由第一和第二感测电容器和差分放大器形成的第一负反馈环路，通过驱动电容器馈送具有阶梯感测电压的差分放大器的输入，以产生变化的电驱动量与公共感测电容成反比，并且驱动具有电驱动量的传感器。

7. 发明授权

US06856144B2 Method and circuit for detecting movements through micro-electric-mechanical sensors, compensating parasitic capacitances and spurious movements 有权
标题翻译：用于检测通过微机电传感器的运动，补偿寄生电容和杂散运动的方法和电路
公开(公告)号：US06856144B2
公开(公告)日：2005-02-15
申请号：US10081134
申请日：2002-02-20
申请人： Ernesto Lasalandra , Tommaso Ungaretti , Andrea Baschirotto
发明人： Ernesto Lasalandra , Tommaso Ungaretti , Andrea Baschirotto
IPC分类号： G01P15/125 , G01R27/26
CPC分类号： G01R27/2605 , G01P15/125
摘要： Method for detecting movements through a micro-electric-mechanical sensor, having a fixed body and a moving mass, forming at least one first and one second detection capacitor, connected to a common node and to a first, respectively a second detection node and having a common detection capacitance at rest and a capacitive unbalance in case of a movement. The method includes the steps of: feeding the common node with a constant detection voltage of predetermined duration; generating a feedback voltage to maintain the first and the second detection node at a constant common mode voltage; generating a compensation electric quantity, inversely proportional to the common detection capacitance at least in one predetermined range; supplying the compensating electric quantity to the common node; and detecting an output quantity related to the capacitive unbalance.
摘要翻译：用于检测通过具有固定体和运动质量的微机电传感器的运动的方法，形成连接到公共节点的至少一个第一和第二检测电容器，以及分别连接到第一检测节点的第一和第二检测电容器，静止时的常见检测电容和运动情况下的电容性不平衡。该方法包括以下步骤：向公共节点馈送预定持续时间的恒定检测电压; 产生反馈电压以将第一和第二检测节点保持在恒定的共模电压; 产生至少在一个预定范围内与公共检测电容成反比的补偿电量; 将补偿电量提供给公共节点; 并检测与电容性不平衡有关的输出量。

8. 发明授权

US09201090B2 Detection circuit using a differential capacitive sensor with input-common-mode control in a sense interface 有权
标题翻译：检测电路采用差分电容传感器，在感应接口中具有输入共模控制
公开(公告)号：US09201090B2
公开(公告)日：2015-12-01
申请号：US11564182
申请日：2006-11-28
申请人： Tommaso Ungaretti , Ernesto Lasalandra
发明人： Tommaso Ungaretti , Ernesto Lasalandra
IPC分类号： G06F3/044 , G01P15/125 , G01P15/13
CPC分类号： G01P15/125 , G01P15/131
摘要： A detection circuit is provided with a differential capacitive sensor and with an interface circuit having a first sense input and a second sense input, electrically connected to the differential capacitive sensor. Provided in the interface circuit are: a sense amplifier connected at input to the first sense input and to the second sense input and supplying an output signal related to a capacitive unbalancing of the differential capacitive sensor; and a common-mode control circuit, connected to the first sense input and to the second sense input and configured to control a common-mode electrical quantity present on the first sense input and on the second sense input. The common-mode control circuit is of a totally passive type and is provided with a capacitive circuit, which is substantially identical to an equivalent electrical circuit of the differential capacitive sensor and is driven with a driving signal in phase opposition with respect to a read signal supplied to the differential capacitive sensor.
摘要翻译：检测电路设置有差分电容传感器和具有电连接到差分电容传感器的具有第一感测输入和第二感测输入的接口电路。提供在接口电路中的是：在输入端连接到第一感应输入和第二感测输入的感测放大器，并提供与差分电容传感器的电容性不平衡有关的输出信号; 以及共模控制电路，其连接到第一感测输入和第二感测输入，并被配置为控制存在于第一感测输入和第二感测输入上的共模电量。共模控制电路是全无源型的，并且具有电容电路，该电容电路基本上与差动电容式传感器的等效电路相同，并且以与读取信号相反的驱动信号驱动提供给差分电容传感器。

9. 发明授权

US07616078B2 Device for controlling the frequency of resonance of an oscillating micro-electromechanical system 有权
标题翻译：用于控制振荡微机电系统谐振频率的装置
公开(公告)号：US07616078B2
公开(公告)日：2009-11-10
申请号：US11864424
申请日：2007-09-28
申请人： Luciano Prandi , Ernesto Lasalandra , Tommaso Ungaretti
发明人： Luciano Prandi , Ernesto Lasalandra , Tommaso Ungaretti
IPC分类号： H03H9/125 , H03H9/52 , H03H3/013
CPC分类号： H03H9/02409 , G01C19/5726 , G01P15/097 , G01P15/125 , G01P2015/0814 , H03H2009/02496
摘要： A device for controlling the frequency of resonance of an oscillating micro-electromechanical system includes: a microstructure, having a first body and a second body, which is capacitively coupled to the first body and elastically oscillatable with respect thereto at a calibratable frequency of resonance, a relative displacement between the second body and the first body being detectable from outside; and an amplifier coupled to the microstructure for detecting the relative displacement. DC decoupling elements are arranged between the amplifier and the microstructure.
摘要翻译：用于控制振荡微机电系统的共振频率的装置包括：具有第一主体和第二主体的微结构，其电容耦合到第一主体并且以可校准的共振频率相对于其弹性振荡，第二体和第一体之间的相对位移可从外部检测; 以及耦合到微结构以检测相对位移的放大器。直流去耦元件布置在放大器和微结构之间。

10. 发明申请

US20080106351A1 DEVICE FOR CONTROLLING THE FREQUENCY OF RESONANCE OF AN OSCILLATING MICRO-ELECTROMECHANICAL SYSTEM 有权
标题翻译：用于控制振荡微电子系统谐振频率的装置
公开(公告)号：US20080106351A1
公开(公告)日：2008-05-08
申请号：US11864424
申请日：2007-09-28
申请人： Luciano Prandi , Ernesto Lasalandra , Tommaso Ungaretti
发明人： Luciano Prandi , Ernesto Lasalandra , Tommaso Ungaretti
IPC分类号： H03B5/20
CPC分类号： H03H9/02409 , G01C19/5726 , G01P15/097 , G01P15/125 , G01P2015/0814 , H03H2009/02496
摘要： A device for controlling the frequency of resonance of an oscillating micro-electromechanical system includes: a microstructure, having a first body and a second body, which is capacitively coupled to the first body and elastically oscillatable with respect thereto at a calibratable frequency of resonance, a relative displacement between the second body and the first body being detectable from outside; and an amplifier coupled to the microstructure for detecting the relative displacement. DC decoupling elements are arranged between the amplifier and the microstructure.
摘要翻译：用于控制振荡微机电系统的共振频率的装置包括：具有第一主体和第二主体的微结构，其电容耦合到第一主体并且以可校准的共振频率相对于其弹性振荡，第二体和第一体之间的相对位移可从外部检测; 以及耦合到微结构以检测相对位移的放大器。直流去耦元件布置在放大器和微结构之间。

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