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1. 发明公开

EP0863624A3 Low power digital signal photocoupler isolator 失效
标题翻译： Photokopplerisolator用于数字信号低功耗
公开(公告)号：EP0863624A3
公开(公告)日：2003-01-29
申请号：EP98103095.0
申请日：1998-02-21
申请人： ELSAG INTERNATIONAL N.V.
发明人： Nemer, Joseph C. , Hemphill, Brian D.
IPC分类号： H04B10/00 , H04L25/26 , H03K17/78
CPC分类号： H04B10/802
摘要： A signal isolating device for an input digital signal has a first photo-coupler which is activated by the differential pulse produced at the leading edge of the digital signal and a second photo-coupler which is activated by the differential pulse produced at the trailing edge of the digital signal. A positive feedback system is connected in push-pull fashion with the photo-couplers for producing an output digital signal that corresponds to the input digital signal. The positive feedback system may be implemented by a buffer that includes a resistor for keeping the buffer in a stable state even when both of the photo-couplers are non-conductive.

2. 发明公开

EP0833553A3 Grounding and RFI isolation for control stations 失效
标题翻译：控制站的接地和RFI隔离
公开(公告)号：EP0833553A3
公开(公告)日：1998-04-08
申请号：EP97116502.2
申请日：1997-09-18
申请人： ELSAG INTERNATIONAL N.V.
发明人： Timieski, Mark E.
IPC分类号： H05K9/00
CPC分类号： H05K9/0049 , H05K9/0007 , H05K9/0066
摘要： A control station for use individually or as an element of a distributed process control system has an improved high frequency isolation and grounding system incorporating a "Chomeric" conductive foil tape on both the cabinet front and back walls as well as on the doors and a V-shaped "Chomeric" conductive gasket placed between the cabinet wall and the door in the area of the conductive tape to insure proper sealing of the door and opening to eliminate all RFI (radio frequency interference) problems and meet European standards for RFI cabinet emissions. This cabinet also has a grounding system comprising a large area swing clip for removing the door as well as a hybrid grounding circuit to eliminate ground potential differences due to geological variations found in different parts of the landscape since the signals reaching the cabinet may originate at remote locations up to a mile or more from the cabinet. The circuit accomplishes this by grounding the DC signals at only one end while the AC signals are grounded at both ends.
摘要翻译：单独使用或作为分布式过程控制系统的一个元件使用的控制站具有改进的高频隔离和接地系统，其在柜的前壁和后壁以及门和门上都包含“Chomeric”导电箔带，V 在导电胶带的区域内放置在柜壁和门之间的“Chomeric”导电垫圈，以确保门和开口的正确密封，以消除所有RFI（射频干扰）问题并符合欧洲RFI机柜排放标准。该柜还具有接地系统，该系统包括用于移除门的大面积摆动夹以及混合接地电路，以消除由于在景观的不同部分中发现的地质变化而导致的地电位差，因为到达柜的信号可能源自远程距柜体一英里或更远的位置。该电路通过仅在一端接地直流信号而交流信号在两端接地来实现这一点。

3. 发明公开

EP0761126A1 Keyboard retaining assemblies 失效
标题翻译： HaltevorrichtungfürTastatur
公开(公告)号：EP0761126A1
公开(公告)日：1997-03-12
申请号：EP96305531.4
申请日：1996-07-29
申请人： ELSAG INTERNATIONAL N.V.
发明人： Oros, Donald Lee
IPC分类号： A47B21/03
CPC分类号： A47B21/0314 , A47B2021/0321
摘要： A computer keyboard retaining assembly has a removable peg (40) mounted to the bottom (36) of the keyboard (22) and which is insertable into a spring-loaded peg holder (26) mounted flush with a workstation (10) work surface (24) to allow rotational and lateral movement of the keyboard (22) along the surface, providing optimal orientation of the keyboard (22) with respect to the workstation operator while preventing the accidental dropping of the keyboard (22) from the workstation surface (24).
摘要翻译：计算机键盘保持组件具有安装在键盘（22）的底部（36）上的可移除栓钉（40），并且可插入到与工作站（10）工作表面（10）齐平安装的弹簧加载钉持有器（26） 24）以允许键盘（22）沿着表面旋转和横向移动，从而提供键盘（22）相对于工作人员操作者的最佳取向，同时防止键盘（22）意外从工作表面（24）掉落）。

4. 发明授权

EP0777122B1 Electrochemical Sensor 失效
标题翻译：电化学传感器
公开(公告)号：EP0777122B1
公开(公告)日：2002-04-10
申请号：EP96119287.9
申请日：1996-12-02
申请人： ELSAG INTERNATIONAL N.V.
发明人： Hess, Charles J. , Spriggs, Donald R. , Thoeni, Stewart
IPC分类号： G01N27/401 , G01N27/403 , G01N27/36
CPC分类号： G01N27/401

5. 发明公开

EP0868021A3 Method and apparatus for performing carrier detection 失效
标题翻译：用于检测载波的方法和设备
公开(公告)号：EP0868021A3
公开(公告)日：1999-03-03
申请号：EP98103084.4
申请日：1998-02-21
申请人： ELSAG INTERNATIONAL N.V.
发明人： Molnar, Richard J. , Nemer, Joseph C.
IPC分类号： H03D13/00 , H03K5/26
CPC分类号： G01R23/15
摘要： A digital implementation for a carrier detector. The detector determines if the carrier frequency at any instant is within a predetermined frequency band. The detector further determines if the detected frequency remains within the predetermined frequency band for a predetermined period of time. The detector also provides an indication that there has not been any loss of carrier for another predetermined period of time.

6. 发明公开

EP0863624A2 Low power digital signal photocoupler isolator 失效
标题翻译： Photokopplerisolatorfürdigitales信号geringer Leistung
公开(公告)号：EP0863624A2
公开(公告)日：1998-09-09
申请号：EP98103095.0
申请日：1998-02-21
申请人： ELSAG INTERNATIONAL N.V.
发明人： Nemer, Joseph C. , Hemphill, Brian D.
IPC分类号： H04B10/00
CPC分类号： H04B10/802
摘要： A signal isolating device for an input digital signal has a first photo-coupler which is activated by the differential pulse produced at the leading edge of the digital signal and a second photo-coupler which is activated by the differential pulse produced at the trailing edge of the digital signal. A positive feedback system is connected in push-pull fashion with the photo-couplers for producing an output digital signal that corresponds to the input digital signal. The positive feedback system may be implemented by a buffer that includes a resistor for keeping the buffer in a stable state even when both of the photo-couplers are non-conductive.
摘要翻译：用于输入数字信号的信号隔离装置具有第一光耦合器，该第一光耦合器由在数字信号的前沿产生的差分脉冲和第二光耦合器激活，第二光耦合器由在后沿产生的差分脉冲激活数字信号。正反馈系统以推挽方式与光耦合器连接，用于产生对应于输入数字信号的输出数字信号。正反馈系统可以由包括用于将缓冲器保持在稳定状态的电阻器的缓冲器来实现，即使当两个光耦合器都不导通时。

7. 发明公开

EP0833553A2 Grounding and RFI isolation for control stations 失效
标题翻译： Erdung undUnterdrückungvonFunkstörungenfürSteuerungsanlagen
公开(公告)号：EP0833553A2
公开(公告)日：1998-04-01
申请号：EP97116502.2
申请日：1997-09-18
申请人： ELSAG INTERNATIONAL N.V.
发明人： Timieski, Mark E.
IPC分类号： H05K9/00
CPC分类号： H05K9/0049 , H05K9/0007 , H05K9/0066
摘要： A control station for use individually or as an element of a distributed process control system has an improved high frequency isolation and grounding system incorporating a "Chomeric" conductive foil tape on both the cabinet front and back walls as well as on the doors and a V-shaped "Chomeric" conductive gasket placed between the cabinet wall and the door in the area of the conductive tape to insure proper sealing of the door and opening to eliminate all RFI (radio frequency interference) problems and meet European standards for RFI cabinet emissions. This cabinet also has a grounding system comprising a large area swing clip for removing the door as well as a hybrid grounding circuit to eliminate ground potential differences due to geological variations found in different parts of the landscape since the signals reaching the cabinet may originate at remote locations up to a mile or more from the cabinet. The circuit accomplishes this by grounding the DC signals at only one end while the AC signals are grounded at both ends.
摘要翻译：单独使用或作为分布式过程控制系统的元件的控制站具有改进的高频隔离和接地系统，其在机柜正面和后壁以及门和V上并入“Chomeric”导电箔带形状的“Chomeric”导电垫片放置在导电胶带区域的机柜壁和门之间，以确保门和开口的适当密封，以消除所有RFI（射频干扰）问题，并满足欧洲RFI柜排放标准。该机柜还具有一个接地系统，包括一个用于拆卸门的大面积摆动夹子以及一个混合接地电路，以消除由于到达机柜的不同部分的地质变化引起的地电势差异，因为到达机柜的信号可能起源于远程距离机柜一英里或更远的地方。该电路通过仅在一端接地直流信号而实现这一点，同时交流信号在两端接地。

8. 发明公开

EP0742445A3 Method and apparatus for measuring the change in capacitance values in dual capacitors 失效
标题翻译：用于测量双电容器的电容的变化的方法和装置
公开(公告)号：EP0742445A3
公开(公告)日：1997-08-06
申请号：EP96302883.2
申请日：1996-04-25
申请人： ELSAG INTERNATIONAL N.V.
发明人： Hemphill, Brian D.
IPC分类号： G01R27/26 , G01R19/10
CPC分类号： G01R27/2605 , G01D5/2405 , G01P15/125 , G01R19/10
摘要： A method and apparatus for calculating a ratio, R, having a first capacitance value, C 1 , in inverse relation to a second capacitance value, C 2 , where C 1 and C 2 are the capacitance values of a first capacitor and a second capacitor respectively. The first and second capacitors each have an independent electrode and share a common electrode. An AC voltage is applied to the common electrode producing first and second AC current signals at the two independent electrodes. A dual switched-capacitor integrated circuit and two current to frequency converters respectively convert the first and second AC current signals to first and second frequency signals having values f 1 and f 2 . A microprocessor receives the first and second frequency signals and calculates R from f 1 and f 2 .

9. 发明公开

EP0742445A2 Method and apparatus for measuring the change in capacitance values in dual capacitors 失效
标题翻译：用于测量双电容器的电容的变化的方法和装置
公开(公告)号：EP0742445A2
公开(公告)日：1996-11-13
申请号：EP96302883.2
申请日：1996-04-25
申请人： ELSAG INTERNATIONAL N.V.
发明人： Hemphill, Brian D.
IPC分类号： G01R27/26 , G01R19/10
CPC分类号： G01R27/2605 , G01D5/2405 , G01P15/125 , G01R19/10
摘要： A method and apparatus for calculating a ratio, R, having a first capacitance value, C 1 , in inverse relation to a second capacitance value, C 2 , where C 1 and C 2 are the capacitance values of a first capacitor and a second capacitor respectively. The first and second capacitors each have an independent electrode and share a common electrode. An AC voltage is applied to the common electrode producing first and second AC current signals at the two independent electrodes. A dual switched-capacitor integrated circuit and two current to frequency converters respectively convert the first and second AC current signals to first and second frequency signals having values f 1 and f 2 . A microprocessor receives the first and second frequency signals and calculates R from f 1 and f 2 .
摘要翻译：一种用于计算比率，R，C1，分别具有第一电容值，在逆相对于第二电容值，C2，其中C1和C2分别是第一电容器和第二电容器的电容值的方法和装置。每个第一和第二电容器具有在独立电极和共用的公共电极。 AC电压被施加到公共电极在两个独立的电极产生第一和第二交流电流信号。一种双开关电容集成电路和两个电流至频率转换分别将第一和第二AC电流信号的第一和具有值f1和f2的第二频率信号。微处理器接收第一和第二频率信号，并从f1和f2计算r。

10. 发明公开

EP0718557A1 Flame detector self diagnostic system 失效
标题翻译： Flammendetektor mit einem Selbstdiagnosesystem
公开(公告)号：EP0718557A1
公开(公告)日：1996-06-26
申请号：EP95308251.8
申请日：1995-11-17
申请人： ELSAG INTERNATIONAL N.V.
发明人： Maloney, Patrick D. , Pruett, Gregory H. , Vertal, Taryl W.
IPC分类号： F23N5/08
CPC分类号： F23N5/082 , F23N2027/12 , F23N2027/14
摘要： A self diagnostic system for a flame detector. The system produces an optical determinant signal from an analog determinant signal that has a controllable amplitude and frequency. The system detects the optical determinant signal and the optical signal from the flame and processes both signals to thereby continuously monitor the flame while also continuously analyzing the operating status of the flame detector.
摘要翻译：自诊断系统包括火焰检测器（30），其具有产生模拟电位移信号的可变幅度和频率驱动器（32）。换能器（34），例如 LED将该行列式信号转换成调制光信号。传感器（36）接收作为火焰信号和调制行列式信号的组合的光信号。传感器信号被放大（38）并分离（40），用于通过单独的火焰信号（42）和调制信号（44）处理器进行数字处理，其将模拟信号（46e，46f）输出到振幅和频率解释器（46）。解释器具有分别表示火焰等级的模拟信号，逻辑GO或NO-GO火焰确定信号的四个输出（46a-d），并且输入到控制调制换能器输出的可变幅度和频率驱动器（32）。

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