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1. 发明公开

EP2592652A3 Variable capacitor circuit and method 有权转让
标题翻译：可变电容器电路和方法
公开(公告)号：EP2592652A3
公开(公告)日：2015-09-30
申请号：EP12007611.2
申请日：2012-11-08
申请人： IMEC
发明人： Van Helleputte, Nick
IPC分类号： H01L27/08 , H03F1/56 , H03F3/45 , A61B5/00 , A61B5/04 , A61B5/053
CPC分类号： A61B5/7214 , A61B5/04017 , A61B5/0402 , A61B5/0531 , H01L27/0811 , H03F1/56 , H03F3/45475 , H03F2200/213 , H03F2200/261 , H03F2203/45538 , H03F2203/45544 , H03F2203/45548 , H03F2203/45576
摘要： The invention relates to a variable capacitor circuit (100) comprising a plurality of MOS capacitors (110), each MOS capacitor being implemented by a MOS transistor with the gate terminal connected to a first voltage signal (Vs) and with the drain terminal shorted with the source terminal and connected to a second voltage signal (Vc), said MOS capacitors being connected in parallel through the gate terminal connected to the first voltage signal (Vs), and being operated in a cut-off region (120) in which the equivalent capacitance (C) of each MOS capacitor remains substantially constant for variations of the first voltage signal. The invention also relates to a method for compensating a capacitance mismatch in a biomedical signal acquisition system using the described variable capacitor circuit (100).

2. 发明公开

EP1931027A4 VARIABLE GAIN AMPLIFIER AND ITS CONTROL METHOD 审中-公开
标题翻译：可变增益放大器及其控制方法
公开(公告)号：EP1931027A4
公开(公告)日：2009-11-11
申请号：EP05787586
申请日：2005-09-30
申请人： FUJITSU LTD
发明人： ARAI TOMOYUKI
IPC分类号： H03G3/10 , H03F1/56
CPC分类号： H03G1/0088 , H03F1/301 , H03F1/3211 , H03F1/56 , H03F3/193 , H03F2200/105 , H03F2200/18 , H03F2200/213 , H03F2200/222 , H03F2200/228 , H03F2200/252 , H03F2200/42 , H03F2200/451 , H03F2200/75 , H03G3/001

3. 发明授权

EP1625656B1 CIRCUIT FOR IMPROVED DIFFERENTIAL AMPLIFIER AND OTHER APPLICATIONS 有权
标题翻译：电路是否改进的差分放大器和其它应用
公开(公告)号：EP1625656B1
公开(公告)日：2007-11-07
申请号：EP04760211.5
申请日：2004-03-25
申请人： Omega Reception Technologies Inc.
发明人： BROWN, Albert, Warren
IPC分类号： H03F3/45 , H03F3/26
CPC分类号： H03F3/45085 , H03F3/08 , H03F3/26 , H03F3/45071 , H03F2200/213 , H03F2200/378
摘要： Differential amplifiers and phase-splitting circuits incorporate voltage-transfer or current-transfer devices of different conductivity types that are connected in series between two different potentials. The current flowing through the two devices is responsive to input signals provided to either or both of the devices. The two devices may be of different types such as bipolar transistors, field-effect transistors, vacuum tubes, triacs and silicon controlled rectifiers. Specific implementations include amplifiers with very low input capacitance and very low second harmonic distortion, multi-state memory cells, detectors and voltage regulators.

4. 发明授权

EP2591720B1 Biomedical acquisition system with motion artifact reduction 有权
标题翻译：生物医学采集系统Bewegungsartifaktreduktion
公开(公告)号：EP2591720B1
公开(公告)日：2016-04-06
申请号：EP12191680.3
申请日：2012-11-07
申请人： IMEC
发明人： Yazicioglu, Refet Firat , Kim, Sunyoung
IPC分类号： A61B5/00 , A61B5/04 , A61B5/053 , H03F1/56 , H03F3/45 , H01L27/08
CPC分类号： A61B5/7214 , A61B5/04017 , A61B5/0402 , A61B5/0531 , H01L27/0811 , H03F1/56 , H03F3/45475 , H03F2200/213 , H03F2200/261 , H03F2203/45538 , H03F2203/45544 , H03F2203/45548 , H03F2203/45576
摘要： The invention relates to a variable capacitor circuit (100) comprising a plurality of MOS capacitors (110), each MOS capacitor being implemented by a MOS transistor with the gate terminal connected to a first voltage signal (Vs) and with the drain terminal shorted with the source terminal and connected to a second voltage signal (Vc), said MOS capacitors being connected in parallel through the gate terminal connected to the first voltage signal (Vs), and being operated in a cut-off region (120) in which the equivalent capacitance (C) of each MOS capacitor remains substantially constant for variations of the first voltage signal. The invention also relates to a method for compensating a capacitance mismatch in a biomedical signal acquisition system using the described variable capacitor circuit (100).

5. 发明公开

EP2166667A3 Analog circuit 有权
标题翻译：模拟电路
公开(公告)号：EP2166667A3
公开(公告)日：2010-05-05
申请号：EP09179509.6
申请日：2006-03-20
申请人： FUJITSU LIMITED
发明人： Shigematsu, Hisao
IPC分类号： H03F3/60 , H03F1/56 , H03B5/12 , H03B7/14
CPC分类号： H03F3/605 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03B5/1262 , H03B5/1852 , H03F1/56 , H03F2200/213 , H03F2200/222
摘要： An analog circuit is provided, comprising an input transistor and an input capacitance change circuit changing input capacitance of said input transistor. The input capacitance change circuit comprises at least one of a variable resistor circuit connected to a source of said input transistor and a variable capacitor circuit connected to the source off said input transistor.
摘要翻译：提供了一种模拟电路，包括输入晶体管和改变所述输入晶体管的输入电容的输入电容改变电路。输入电容改变电路包括连接到所述输入晶体管的源极的可变电阻器电路和连接到所述输入晶体管的源极的可变电容器电路中的至少一个。

6. 发明公开

EP1914886A1 Multi-band power amplifier 审中-公开
标题翻译： Mehrbandleistungsverstärker
公开(公告)号：EP1914886A1
公开(公告)日：2008-04-23
申请号：EP06301062.3
申请日：2006-10-19
申请人： Alcatel Lucent
发明人： Wiegner, Dirk , Nass, Tobias
IPC分类号： H03F1/48 , H03F1/56 , H03F1/02
CPC分类号： H03F1/56 , H03F1/0222 , H03F1/0266 , H03F1/483 , H03F3/193 , H03F2200/102 , H03F2200/111 , H03F2200/213 , H03F2200/222 , H03F2200/228 , H03F2200/252 , H03F2200/378 , H03F2200/387 , H03F2200/421 , H03F2200/451
摘要： In order to improve the performances of an amplifier across a broad range of frequencies, the input matching network (16), and optionally the output matching network (36), comprise/s a plurality of individually selectable sub networks. Each sub network comprises a switching element (S1-S3) and a matching element (M1-M3) comprising preferably a capacitor. Depending on the desired operating frequency, one of the switching elements is turned ON while the other switching elements remain OFF.
To improve the efficiency, it is furthermore suggested to regulate (18) the supply voltage and/or bias voltage of the amplifying transistor (14) in response to the detected (20) envelope signal of the input signal to be amplified.
摘要翻译：为了改善放大器在宽频率范围内的性能，输入匹配网络（16）和可选地输出匹配网络（36）包括多个可单独选择的子网络。每个子网络包括优选地包括电容器的开关元件（S1-S3）和匹配元件（M1-M3）。根据期望的工作频率，其中一个开关元件接通，而另一个开关元件保持OFF。为了提高效率，还建议响应于要被放大的输入信号的检测到的（20）包络信号来调节（18）放大晶体管（14）的电源电压和/或偏置电压。

7. 发明公开

EP2591720A1 Biomedical acquisition system with motion artifact reduction 有权
标题翻译：生物识别系统（Erfassungssystem mit Bewegungsartifaktreduktion）
公开(公告)号：EP2591720A1
公开(公告)日：2013-05-15
申请号：EP12191680.3
申请日：2012-11-07
申请人： IMEC
发明人： Yazicioglu, Refet Firat , Kim, Sunyoung
IPC分类号： A61B5/04 , A61B5/053 , H01L27/08 , H03F1/56 , H03F3/45
CPC分类号： A61B5/7214 , A61B5/04017 , A61B5/0402 , A61B5/0531 , H01L27/0811 , H03F1/56 , H03F3/45475 , H03F2200/213 , H03F2200/261 , H03F2203/45538 , H03F2203/45544 , H03F2203/45548 , H03F2203/45576
摘要： A system (100) for the analysis of ECG signals comprising: at least one readout channel (110), configured to receive an analogue ECG signal (101) acquired from at least one electrode attached to a body; and to extract an analogue measured ECG signal (120) and analogue electrode-skin impedance signals (121, 122); at least one ADC (130), configured to convert those extracted analogue signals at the readout channel into digital signals; a digital adaptive filter unit (180), configured to calculate a digital motion artifact estimate (181) based on said digital versions of the measured ECG signal and the electrode-skin impedance signals; at least one DAC (131), configured to convert said digital motion artifact estimate into an analogue signal; and a feedback loop (140) for sending said analogue motion artifact estimate signal back to the readout channel (101) configured to deduct said analogue motion artifact estimate signal from said analogue measured ECG signal.
摘要翻译：一种用于分析ECG信号的系统（100），包括：至少一个读出通道（110），被配置为接收从附接到身体的至少一个电极获取的模拟ECG信号（101）并提取模拟测量的ECG信号（120）和模拟电极 - 皮肤阻抗信号（121,122）; 至少一个ADC（130），被配置为将读出信道处的所提取的模拟信号转换为数字信号; 数字自适应滤波器单元（180），被配置为基于测量的ECG信号和电极 - 皮肤阻抗信号的所述数字版本来计算数字运动伪影估计（181）; 至少一个DAC（131），被配置为将所述数字运动假象估计转换为模拟信号; 以及用于将所述模拟运动假象估计信号发送回所述读出通道（101）的反馈回路（140），所述读出通道被配置为从所述模拟测量的ECG信号中扣除所述模拟运动伪影估计信号。

8. 发明授权

EP2166667B1 Analog circuit 有权
标题翻译：模拟电路
公开(公告)号：EP2166667B1
公开(公告)日：2012-02-01
申请号：EP09179509.6
申请日：2006-03-20
申请人： FUJITSU LIMITED
发明人： Shigematsu, Hisao
IPC分类号： H03F3/60 , H03F1/56 , H03B5/12 , H03B7/14
CPC分类号： H03F3/605 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03B5/1262 , H03B5/1852 , H03F1/56 , H03F2200/213 , H03F2200/222

9. 发明公开

EP1998439A4 ANALOG CIRCUIT 有权
标题翻译： ANALOGKREIS
公开(公告)号：EP1998439A4
公开(公告)日：2009-04-15
申请号：EP06729563
申请日：2006-03-20
申请人： FUJITSU LTD
发明人： SHIGEMATSU HISAO
IPC分类号： H03F3/60 , H03B5/12 , H03F1/56
CPC分类号： H03F3/605 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03B5/1262 , H03B5/1852 , H03F1/56 , H03F2200/213 , H03F2200/222
摘要： A resistor body (9-1) and a resistor body (11-1) are connected in parallel to each other between the source and the ground of an input transistor (7-1). A switch (12-1) is provided between the resistor body (11-1) and the source. The resistor body (9-1), the resistor body (11-1), and the switch (12-1) constitute a variable resistance circuit. A capacitor (10-1) and a variable-capacitance capacitor (13-1) are connected in series to each other between the source and the ground. A control terminal (14-1) to which a voltage is applied when controlling the capacitance of the variable-capacitance capacitor (13-1) is provided between the capacitor (10-1) and the variable-capacitance capacitor (13-1). The capacitor (10-1) and the variable-capacitance capacitor (13-1) constitute a variable capacitance circuit. The variable resistance circuit and the variable capacitance circuit constitute an input capacitance changing circuit.

10. 发明公开

EP1625656A1 CIRCUIT FOR IMPROVED DIFFERENTIAL AMPLIFIER AND OTHER APPLICATIONS 有权
标题翻译：电路是否改进的差分放大器和其它应用
公开(公告)号：EP1625656A1
公开(公告)日：2006-02-15
申请号：EP04760211.5
申请日：2004-03-25
申请人： Omega Reception Technologies Inc.
发明人： BROWN, Albert, Warren
IPC分类号： H03F3/45 , H03F3/26
CPC分类号： H03F3/45085 , H03F3/08 , H03F3/26 , H03F3/45071 , H03F2200/213 , H03F2200/378
摘要： Differential amplifiers and phase-splitting circuits incorporate voltage-transfer or current-transfer devices of different conductivity types that are connected in series between two different potentials. The current flowing through the two devices is responsive to input signals provided to either or both of the devices. The two devices may be of different types such as bipolar transistors, field-effect transistors, vacuum tubes, triacs and silicon controlled rectifiers. Specific implementations include amplifiers with very low input capacitance and very low second harmonic distortion, multi-state memory cells, detectors and voltage regulators.

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