公开(公告)号：EP1611417A2

公开(公告)日：2006-01-04

申请号：EP04722576.8

申请日：2004-03-23

申请人： VALEO SECURITE HABITACLE

发明人： MUSAT, Ciprian, VALEO SECURITE HABITACLE ,  HOURNE, Xavier, VALEO SECURITE HABITACLE

IPC分类号： G01D5/24 ,  H03K17/955

CPC分类号： E05B81/78 ,  H03K17/955 ,  H03K17/962

摘要： The invention relates to a presence detector (1) of the capacitive type, comprising at least one detector electrode (3), forming part of a capacitor (5), the capacitance (Cx) of which will vary with the approach of an object or part of the body of a user and a charging unit (9) for the capacitor applying cycles of charge to said capacitor (5). The sensor further comprises means (11) for the measurement of a parameter, the variation of which reflects a variation in the charging current for the capacitor (5) and, connected to said measuring means (11), an extraction unit (13) for said parameter, for determination of a change in the capacitance of the capacitor (5) from the variation in said parameter between the successive cycles of charging the capacitor, following an approach of an object or a part of the body of a user.

公开(公告)号：EP1318376A3

公开(公告)日：2005-12-28

申请号：EP02027524.4

申请日：2002-12-06

申请人： ELECTRONIC SYSTEMS S.P.A.

发明人： Saini, Marco ,  Traficante, Francesco ,  Viero, Davide

IPC分类号： G01B7/06 ,  G01D5/24

CPC分类号： G01D5/2405 ,  G01B7/085

摘要： The present invention relates to an apparatus for measuring the thickness of dielectric materials in film form, which has a capacitive sensor that can confine the dielectric flux lines (ψ1, ψ2) to a region of space (2a, 2b) outside the space defined by the sensor plates (3, 4, 5), which region in space (2a, 2b) is adapted to receive the film (6) of material to be measured, said sensor (1) having a central plate (3) disposed asymmetrically between the two side plates (4, 5), the three plates (3, 4, 5) forming two capacitors (C1, C2) with a common plate (3), characterized in that means (7) are provided to simultaneously measure the capacitances of said two capacitors (C1, C2) and to convert the so measured capacitances into a signal indicative of the thickness of the measured material (6), and that means (8) are also provided to determine the ratio (τ) between the measured capacitances (C1, C2) and to derive the thickness of the dielectric film (6) as a function of said ratio (τ).

公开(公告)号：EP1605232A2

公开(公告)日：2005-12-14

申请号：EP05012430.4

申请日：2005-06-09

申请人： YAMAHA CORPORATION

发明人： Sato, Hideki ,  Nihashi, Satoshi

IPC分类号： G01C17/38 ,  G01D18/00 ,  G01D5/24

CPC分类号： G01D3/0365 ,  G01C17/38

摘要： A method is designed for measuring a magnetic offset of a geomagnetic sensor equipped in a portable information terminal apparatus having a storage. The geomagnetic sensor has a magnetic sensitivity to a geomagnetic field and is affected by magnetization to cause the magnetic offset. In the method, an output of the geomagnetic sensor is measured to successively provide measurement data of the geomagnetic field from the output of the geomagnetic sensor. The measurement data is stored in the storage. The measurement data is read out from the storage when a number of the measurement data stored in the storage reaches a predetermined number, and an offset value of the magnetic offset is estimated based on the predetermined number of the measurement data read out from the storage.

摘要翻译： 一种方法是设计一种用于测量磁性配备在具有存储器的便携式信息终端装置的地磁传感器偏移。 地磁传感器具有对地磁场的磁灵敏度，并且通过磁化的影响，以使磁偏置。 在该方法中，在地磁传感器的输出被测量，以连续地从地磁传感器的输出提供地磁场的测量数据。 测量数据存储在存储。 测定数据从存储读出当一个号码存储在存储器中的测量数据的达到预定数量，并以抵消磁偏置的值基于该测量数据的预定数量的估计从所述存储读出。

公开(公告)号：EP1555535A1

公开(公告)日：2005-07-20

申请号：EP02777897.6

申请日：2002-10-22

申请人： Tokyo Electron Limited ,  Hokuto Electronics, Inc.

发明人： YAKABE, Masami c/o Tokyo Electron Limited ,  NAKANO, Koichi

IPC分类号： G01R27/26 ,  G01D5/24 ,  G01N27/22 ,  H04R3/06

CPC分类号： G01R27/26

摘要： An electric potential fixing apparatus is provided that can prevent the combined total amount of electricity of a connection line between the first capacitance and the second capacitance from changing even when the electric potential of the connection line between the first capacitance and the second capacitance is fixed in the case where the first capacitance and the second capacitance are directly connected.
This electric potential fixing apparatus has the first high resistance (3) and the second high resistance (4) and includes a voltage supply circuit (1) that preserves the combined total amount of electric charge of a measuring capacitance (14) and a fixed capacitance (15) and maintains constant the electric potential of a signal line (17) that connects the measuring capacitance (14) and the fixed capacitance (15). And an output terminal (5) of the voltage supply circuit (1) is connected to the signal line (17).

摘要翻译： 提供了一种电位固定设备，其能够即使当第一电容和第二电容之间的连接线的电位被固定在第一电容和第二电容之间时，也能够防止第一电容和第二电容之间的连接线的合计总电量变化 第一电容和第二电容直接连接的情况。 该电位固定装置具有第一高电阻（3）和第二高电阻（4），并且包括电压供应电路（1），其保持测量电容（14）的总电荷总量和固定电容 （15）并且保持连接测量电容（14）和固定电容（15）的信号线（17）的电位恒定。 并且电压供应电路（1）的输出端（5）连接到信号线（17）。

公开(公告)号：EP1548409A1

公开(公告)日：2005-06-29

申请号：EP03368127.1

申请日：2003-12-23

申请人： Dialog Semiconductor GmbH

发明人： Knoedgen, Horst

IPC分类号： G01D5/24

CPC分类号： G01D5/241 ,  G01R27/2605

摘要： A circuit and method are given, which realizes a stable yet sensitive differential capacitance measuring device with good RF-suppression and with very acceptable noise features for use in capacitive sensor evaluation systems. By evaluating the difference of capacitor values only - with the help of a switched capacitor front-end - large spreads of transducer capacitor values are tolerable. Furthermore a mode of operation can be set up, where no essential galvanic connection between sensor input and the active read-out input at any given time is existing. The solution found exhibits a highly symmetrical construction. Using the intrinsic advantages of that solution the circuit of the invention is manufactured as an integrated circuit with standard CMOS technology at low cost.

摘要翻译： 给出了电路和方法，其实现了具有良好RF抑制的稳定但灵敏的差分电容测量装置，并且具有用于电容传感器评估系统的非常可接受的噪声特征。 通过仅考虑电容器值的差异 - 借助于开关电容器前端，大容量传感器电容值可以容忍。 此外，可以设置操作模式，其中在任何给定时间处传感器输入和主动读出输入之间没有必要的电流连接。 找到的解决方案表现出高度对称的结构。 利用该解决方案的固有优点，本发明的电路以低成本制造成具有标准CMOS技术的集成电路。

公开(公告)号：EP1464967A4

公开(公告)日：2005-01-26

申请号：EP02765438

申请日：2002-09-06

申请人： TOKYO ELECTRON LTD

发明人： YAKABE MASAMI

IPC分类号： G01R27/26 ,  G01D5/24 ,  G01N27/22 ,  H04R3/06

CPC分类号： G01D5/24 ,  G01N27/22 ,  H04R3/06

摘要： An electric potential fixing apparatus of the present invention is an electric potential fixing apparatus that is connected to a connection line (17) between two capacitances, the first capacitance (14) and the second capacitance (15) that is directly connected to the first capacitance, comprises the first high resistance (3), the second high resistance (4) that is connected directly to the first high resistance, a voltage dividing unit that outputs electric potential divided by the first high resistance and the second high resistance to the output terminal, the third capacitance (8) that is connected in parallel to at least either of the first high resistance and the second high resistance, and a voltage supply unit (1) operable to maintain constantly electric potential of the connection line between the two capacitances (14) and (15), holding combined total electric charge quantity of the first capacitance and the second capacitance, and the output terminal of the voltage supply unit is connected to a signal line between the two capacitances.

公开(公告)号：EP1399792A4

公开(公告)日：2005-01-19

申请号：EP02739999

申请日：2002-06-27

申请人： ADE CORP

发明人： MALLORY ROY E

IPC分类号： G01D5/24 ,  H03F1/34 ,  G05F7/00 ,  H03F1/02

CPC分类号： C04B28/04 ,  H03F1/347 ,  Y02W30/92 ,  Y02W30/94 ,  Y02W30/95 ,  C04B18/08 ,  C04B18/162 ,  C04B18/141

摘要： A mechanism to provide a bootstrapped power source for a differential operational amplifier (30'') includes a three-winding transformer (52) having a first winding disposed between a positive voltage (+V) and a plus power (54) input to the amplifier, yielding an initial plus voltage, a second winding disposed between a negative voltage (-V) and a minus power input (56) to the amplifier (30'') yielding an initial minus voltage, and a third winding disposed between a ground and a plus input (58) to the amplifier (30'') providing a feedback path. The differential operational amplifier (30'') output is connected to ground. The amplifier (30'') minus input (16) is connected to a signal (Vs) and when the signal (Vs) is displaced a first amount from a first voltage (Vi), the plus and minus power inputs are displaced approximately the same amount from the initial positive (Vi) and negative voltages (Vo).

公开(公告)号：EP1123489B1

公开(公告)日：2004-07-21

申请号：EP99949088.1

申请日：1999-10-21

申请人： Launay, Claude ,  Le Reste, Daniel ,  Jordana, Pascal ,  Panciroli, William

发明人： Launay, Claude ,  Le Reste, Daniel ,  Jordana, Pascal ,  Panciroli, William

IPC分类号： G01F23/26 ,  G01D5/24

CPC分类号： G01F23/266 ,  G01D5/2405

摘要： The invention concerns a measuring device using an indirect permittivity measurement characterised in that it comprises two electrically conductive bodies respectively constituting a measuring probe (100) and a reference probe (200), electric supply means (300) for delivering a direct current voltage with controlled amplitude, an integrating stage (500) comprising a capacity switching system (530) and control means (400) for cyclically defining, at controlled frequency, a series of two sequences: one first sequence (T1) during which the electric supply means (300) are connected to the measuring probe (100) to apply an electric field between the measuring probe (100) and the reference probe (200) and accumulate electric loads on the measuring probe (100), then a second sequence (T2) during which the electric supply means (300) are disconnected from the measuring probe (100) and the latter is connected to the summation point of the integrating stage (500) to transfer the loads in the integrating stage (500) and obtain in output thereof a signal representing the permittivity existing between the measuring probe (100) and the reference probe (200).

摘要翻译： 本发明涉及一种使用间接介电常数测量的测量装置，其特征在于它包括分别构成测量探头（100）和参考探头（200）的两个导电体，用于传送受控的直流电压的电源装置（300） 包括容量切换系统（530）和控制装置（400）的积分级（500），用于以受控频率循环地定义一系列两个序列：一个第一序列（T1），在该第一序列期间供电装置 ）连接到测量探针（100）以在测量探针（100）和参考探针（200）之间施加电场并累积测量探针（100）上的电负载，然后是第二序列（T2） 供电装置（300）与测量探头（100）断开连接并且后者连接到积分级（500）的求和点以将负载 （500）并在其输出中获得表示存在于测量探针（100）和参考探针（200）之间的介电常数的信号。

公开(公告)号：EP1430513A1

公开(公告)日：2004-06-23

申请号：EP02740020.9

申请日：2002-07-08

申请人： Tru-Si Technologies Inc.

发明人： KRETZ, Frank, E. ,  BERGER, Alexander, J. ,  CASAROTTI, Sean, A.

IPC分类号： H01L21/00 ,  H01L21/66 ,  B25J9/00 ,  B23Q17/20 ,  G01D5/24

CPC分类号： H01L21/67271 ,  B25J13/087 ,  B25J19/02 ,  Y10S414/135 ,  Y10S414/141

摘要： An article holder has sensors that detect whether an article held in the holder is a workpiece or a piece of packaging material. Examples are end effectors suitable for picking up semiconductor wafers and packaging material from a pod or some other carrier.

公开(公告)号：EP1413856A2

公开(公告)日：2004-04-28

申请号：EP03256552.5

申请日：2003-10-17

申请人： ALPS ELECTRIC CO., LTD.

发明人： Sato, Kunio ,  Endo, Yoshihisa ,  Soma, Masahiro

IPC分类号： G01D5/24

CPC分类号： G01D5/24 ,  G01D5/2405 ,  H01H2231/01 ,  H01H2239/006 ,  H03K17/962 ,  H03K17/9622 ,  H03K2217/96072

摘要： A variable capacitance unit is formed between one portion of a human body (4) and an opposed electrode (3) facing it through a casing of a robot toy (electronic device) (2) when the one portion of the human body such as a hand or a finger approaches the surface of the casing (2A) of the robot. Since the capacitance of the variable capacitance unit varies according to the facing area and the facing distance of the one portion of the human body and the opposed electrode, it is possible to detect the one portion of the human body approaching or touching the robot toy by detecting this change. Since the opposed electrode forming the touch sensor can be provided within the casing, the touch sensor cannot be seen directly from the outside of the robot toy.