公开(公告)号：US5618208A

公开(公告)日：1997-04-08

申请号：US253653

申请日：1994-06-03

申请人： Helen C. Crouse ,  Edwin Muz ,  Bernd Rosenfeldt ,  Thomas K. Naylor

发明人： Helen C. Crouse ,  Edwin Muz ,  Bernd Rosenfeldt ,  Thomas K. Naylor

IPC分类号： H01R12/50 ,  H01R13/658 ,  H01R13/6585 ,  H01R13/6593 ,  H01R24/00 ,  H01R13/648

CPC分类号： H01R13/6585 ,  H01R13/6593 ,  H01R13/65802 ,  H01R23/6873

摘要： A shielded electrical connector having an elongated annular housing composed of an electrically insulative material molded so as to form an elongated structure for the connector and at least a portion of a grasp for a user of said connector. The housing defines outside and inside surfaces and front and rear ends for said connector. A contact holding portion composed of an electrically insulative material is positioned inside said annular housing and includes a plurality of electrically conductive signal contacts positioned therein so as to be completely surrounded by, yet spaced a distance away from, the inside surface of the housing. An elongated annular electrically conductive shield having inner and outer sides is insert molded with the housing so as to be disposed between its outside and inside surfaces. The elongated shield has a proximal end adapted for being coupled to a common shield associated with the plurality of signal conductors and a distal end extending to and encapsulated by the front end of the housing, yet the front end of the housing leaving an unencapsulated portion of the inside surface of the shield which is spaced a predetermined distance away from the front end of the housing. The un-encapsulated portion of the inside surface of the shield is adapted for making electrical contact with a shield of a mating multi-conductor connector so as to provide an effectively continuous conductive shield which completely surrounds the electrically conductive signal contacts.

摘要翻译： 一种屏蔽电连接器，具有由电绝缘材料构成的细长环形壳体，所述电绝缘材料被模制以形成用于所述连接器的细长结构以及用于所述连接器的用户的至少一部分抓握。 壳体限定用于所述连接器的外表面和内表面以及前端和后端。 由电绝缘材料构成的触点保持部分位于所述环形壳体的内部，并且包括多个位于其中的导电信号触点，以便完全被外壳的内表面隔开一段距离。 具有内侧和外侧的细长环形导电屏蔽件与壳体嵌入模制，以便设置在其外表面和内表面之间。 细长屏蔽件具有适于联接到与多个信号导体相关联的公共屏蔽的近端，以及延伸到壳体的前端并由其封装的远端，而外壳的前端留下未封装的部分 屏蔽件的内表面与壳体的前端隔开预定的距离。 屏蔽件内表面的未封装部分适于与配合的多导体连接器的屏蔽件电接触，以便提供完全围绕导电信号触头的有效连续的导电屏蔽。

公开(公告)号：US5491299A

公开(公告)日：1996-02-13

申请号：US253518

申请日：1994-06-03

申请人： Thomas K. Naylor ,  Helen C. Crouse ,  Edwin Muz

发明人： Thomas K. Naylor ,  Helen C. Crouse ,  Edwin Muz

IPC分类号： A61B5/0428 ,  H01B11/06 ,  H01B7/34

CPC分类号： A61B5/04286 ,  H01B11/06 ,  A61B2562/222

摘要： A flexible multi-parameter conductor cable having coaxially symmetric elongated zones for signal carrying conductor placement therein, comprising an electrically conductive inner shield defining an electrically shielded inner longitudinal zone symmetrically disposed along and defining a center of said cable for containing at least one of a first type of signal carrying conductor, and an electrically conductive outer shield spaced a given distance symmetrically around said inner shield so as to define an electrically shielded outer longitudinal zone symmetrically disposed about said inner longitudinal zone for containing a plurality of at least a second type of signal carrying insulated conductor arranged in a single layer adjacent one another in said second longitudinal zone, said second type of conductor having an electrically conductive outer jacket in electrical contact with at least said outer shield.

摘要翻译： 一种柔性多参数导体电缆，具有用于将信号承载导体放置在其中的同轴对称的细长区域，包括限定电屏蔽的内纵向区域的导电内屏蔽层，所述电屏蔽内部纵向区域沿着并限定所述电缆的中心对称地设置，用于容纳至少一个第一 信号承载导体的类型以及围绕所述内屏蔽体对称地间隔给定距离的导电外屏蔽件，以便限定围绕所述内纵向区域对称地设置的电屏蔽外纵向区域，用于容纳多个至少第二类型的信号 所述第二类型的导体具有与至少所述外屏蔽电接触的导电外护套，所述绝缘导体布置在所述第二纵向区域中彼此相邻的单层中。

公开(公告)号：US3982277A

公开(公告)日：1976-09-21

申请号：US427883

申请日：1973-12-26

申请人： Thomas K. Naylor

发明人： Thomas K. Naylor

IPC分类号： H03M5/14 ,  A61B5/0436 ,  G11B5/02 ,  G11B15/52 ,  G11B20/14 ,  G11B23/00 ,  G11B27/10

CPC分类号： A61B5/0436 ,  G11B15/52 ,  G11B23/0007 ,  A61B5/7239

摘要： There is disclosed a technique for compensating timing errors in low-speed tape systems, such as a system in which ECG signals are recorded on a tape moving as slow as 0.08 inches per second. Clock pulses are recorded on the tape together with the signal of interest. After the signal is derived during reading of the tape, the recorded clock pulses control the sampling of the signal. The samples are used to re-constitute the signal under the control of another set of clock pulses. This latter set of clock pulses is derived from the recorded set by a phase-locked loop which establishes equal time spacings between the re-constituting clock pulses even though the sampling clock pulses, which are read from the tape and applied to the input of the phase-locked loop, may have unequal time spacings.

摘要翻译： 公开了一种用于补偿低速磁带系统中的定时误差的技术，例如其中ECG信号被记录在以每秒0.08英寸的速度移动的磁带上的系统。 时钟脉冲与感兴趣的信号一起记录在磁带上。 在读取磁带之后导出信号后，记录的时钟脉冲控制信号的采样。 样本用于在另一组时钟脉冲的控制下重构信号。 后一组时钟脉冲通过锁相环从记录的集合中导出，该锁相环在重新构成的时钟脉冲之间建立相等的时间间隔，即使从采样时钟脉冲读取并施加到输入端 锁相环可能具有不等的时间间隔。

公开(公告)号：US4158863A

公开(公告)日：1979-06-19

申请号：US884326

申请日：1978-03-07

申请人： Thomas K. Naylor

发明人： Thomas K. Naylor

IPC分类号： A61B5/0424 ,  H03F1/52 ,  H03F3/45 ,  H02H7/20

CPC分类号： H03F1/52 ,  A61B5/0424 ,  H03F3/45071

摘要： An input overload protection circuit particularly suited for use with a high impedance differential amplifier having two inputs is provided. The protection circuit prevents the flow of substantially all leakage currents for input signals within the linear operating range of the amplifier, and includes a first and second serial plurality of diode-action clamping means, such as diodes, connected respectively between the first and second input conductors to the amplifier input and a third conductor connected to a reference potential. Driven guard means operate to apply the voltage appearing on the respective first and second input conductors at their junction with the respective first and second clamping means to the respective first and second plurality of clamping means intermediate the respective ends thereof, thereby to substantially prevent leakage current from flowing through the clamping means from the pair of conductors.

摘要翻译： 提供特别适用于具有两个输入的高阻抗差分放大器的输入过载保护电路。 保护电路防止在放大器的线性工作范围内对输入信号的基本上所有的泄漏电流的流动，并且包括分别连接在第一和第二输入端之间的第一和第二串联多个二极管动作钳位装置，例如二极管， 连接到放大器输入的导体和连接到参考电位的第三导体。 驱动保护装置用于将相应的第一和第二输入导体出现在其相应的第一和第二钳位装置的连接处的电压施加到其相应端部之间的相应的第一和第二多个夹紧装置，从而基本上防止漏电流 从一对导体流过夹紧装置。

公开(公告)号：US4149527A

公开(公告)日：1979-04-17

申请号：US781816

申请日：1977-03-28

申请人： Thomas K. Naylor ,  Alan S. Cushing

发明人： Thomas K. Naylor ,  Alan S. Cushing

IPC分类号： A61B5/0402 ,  A61B5/04 ,  A61B5/02

CPC分类号： A61B5/04004 ,  A61B5/7217

摘要： In cardiac signal processing apparatus, there is provided improved means for suppressing pacer signal artifacts, including both the discharge pulse and the recharge waveform (tail) of such artifact. Rate-limiting circuitry is used to substantially suppress the discharge pulse. However additional circuitry responsive to the detection of a pacer pulse is operative to obtain a measure of the electrical discharge of the discharge portion of the respective pacer pulse and to use such measure to generate a tail suppression signal which, when added to the original signal, substantially cancels the original pacer tail.A feed-back loop is opened by the rate-limiter when a pacer pulse occurs and in turn permits a large signal to be imposed on a threshold-level-type pacer pulse detector for connecting the large signal (pacer pulse) to a capacitor during the discharge portion of the pacer pulse. The capacitor begins to discharge shortly after the pacer pulse's discharge portion with a polarity and time constant selected to substantially cancel (when summed) the pacer tail.

摘要翻译： 在心脏信号处理装置中，提供了用于抑制起搏器信号伪影的改进装置，包括放电脉冲和这种假象的再充电波形（尾部）。 速率限制电路用于基本上抑制放电脉冲。 然而，响应于起搏器脉冲的检测的附加电路可用于获得各个起搏器脉冲的放电部分的放电的量度，并且使用这种措施来产生尾部抑制信号，当被加到原始信号时， 基本上取消了原始的赛车尾巴。

公开(公告)号：US4124822A

公开(公告)日：1978-11-07

申请号：US833932

申请日：1977-09-16

申请人： Thomas K. Naylor

发明人： Thomas K. Naylor

IPC分类号： A61B5/04 ,  A61B5/0428 ,  H03F3/38

CPC分类号： A61B5/04004 ,  A61B5/04282 ,  H03F3/38

摘要： A DC isolation amplifier having improved conductive isolation between its input and output. The amplifier includes an input section having a modulator and an output section having a demodulator and an oscillator section. The modulator and demodulator are nonconductively coupled through inductive loops of two closed-loop cores of magnetic material each having windings inductively coupled to the material of their associated core and to the other of the modulator or the demodulator. Additionally, a unitary closed loop winding couples the two cores such that the net EMF induced in the turns of the winding accordingly such that the respective component of the external magnetic field of the turns is substantially normal to the respective plane of each turn of this plurality. Additionally, this unitary loop is twisted between the cores to comprise a twisted pair additionally to minimize the effects from external magnetic fields. In the preferred embodiment, this loop is limited to two turns per core. However, this number may be increased slightly for certain specific situations. In preferred embodiments, the cores are housed in magnetic shields, the shields having an opening in one end and the center line of the core is disposed in the plane of the opening of the shield.

摘要翻译： 一种直流隔离放大器，其输入和输出之间具有改善的导通隔离。 放大器包括具有调制器的输入部分和具有解调器和振荡器部分的输出部分。 调制器和解调器通过磁性材料的两个闭环磁芯的感应回路非传导耦合，每个磁路的磁环都具有感应耦合到其相关核心的材料和调制器或解调器的另一个的绕组。 此外，单一闭环绕组将两个芯耦合，使得在绕组匝中感应的净EMF相应地使得匝的外部磁场的相应分量基本上垂直于该多个绕组的每个匝的各个平面 。 另外，这个单一环路在芯之间扭转，以包括双绞线，以最小化外部磁场的影响。 在优选实施例中，该环限于每个芯两匝。 但是，对于某些特定情况，这个数字可能会略有增加。 在优选实施例中，芯被容纳在磁屏蔽中，屏蔽件在一端具有开口，并且芯的中心线设置在屏蔽开口的平面中。

公开(公告)号：US4683441A

公开(公告)日：1987-07-28

申请号：US799621

申请日：1985-11-19

申请人： Thomas K. Naylor

发明人： Thomas K. Naylor

IPC分类号： A61B5/0428 ,  G06G7/14 ,  H03F1/30 ,  H03F3/45

CPC分类号： G06G7/14 ,  A61B5/0428 ,  H03F1/30 ,  Y10S128/902

摘要： A bank of differential amplifier circuits includes specialized circuits to provide multi-channel differencing with a minimum number of active devices such that the differences between pairs of analog input signals, such as available from patient monitoring electrodes, are derived with half the number of active devices normally utilized. In one embodiment, two operational amplifier circuits are used in a differencing channel which functions together to provide differencing, a properly delayed input signal for use in another differencing channel, high input impedance buffering, a low impedance output for each differential amplifier channel, time-coincident, matched outputs for each differential amplifier channel, and with an additional operational amplifier, a DC rejection circuit which does not affect the low output impedance or the differencing function, thereby to eliminate the necessity of providing separate buffers and active delay circuits which can result in the use of twice the number of active devices. The above results are accomplished through the use of a predetermined ratio for the input and feedback resistors associated with the pairs of operational amplifiers in each channel and by tapping off a signal in one channel for use as an input signal in another channel.

摘要翻译： 一组差分放大器电路包括专用电路，以提供具有最小数量的有源器件的多通道差分，使得模拟输入信号对之间的差异（例如来自患者监测电极的可用性）由一半有源器件的数量导出 通常使用。 在一个实施例中，在差分通道中使用两个运算放大器电路，这些差分通道一起工作以提供差分，用于另一差分通道的适当延迟的输入信号，高输入阻抗缓冲，每个差分放大器通道的低阻抗输出， 用于每个差分放大器通道的重合匹配输出，以及附加运算放大器，不影响低输出阻抗或差分功能的DC抑制电路，从而消除了提供可产生的单独缓冲器和有源延迟电路的必要性 在使用两倍数量的有源设备。 上述结果是通过使用与每个通道中的运算放大器对相关联的输入和反馈电阻器的预定比率来实现的，并且通过抽出一个通道中的信号以用作另一通道中的输入信号。

公开(公告)号：US4255769A

公开(公告)日：1981-03-10

申请号：US53017

申请日：1979-06-28

申请人： Thomas K. Naylor ,  George A. Cavigelli

发明人： Thomas K. Naylor ,  George A. Cavigelli

IPC分类号： H03F3/34 ,  H03F1/30 ,  H03F3/185 ,  H03G11/08 ,  G11B5/45 ,  G11B5/02

CPC分类号： H03F1/303 ,  H03F3/1855 ,  H03G11/08

摘要： The preamplifier comprises amplifying means, the output of which is inverted relative to the input, and a feedback circuit connected from the output to the input of the amplifier so as to provide a perfect integrator which cancels the amplitude variations resulting from changes in tape speed. The impedance of the feedback circuit and the impedance of the signal source extended to the amplifier are such that the output of the amplifier is the integral of the voltage generated in the inductive head over a wide band of frequencies.

摘要翻译： 前置放大器包括放大装置，其输出相对于输入端反相，以及从输出端连接到放大器的输入端的反馈电路，以便提供一种完美的积分器，该积分器消除由磁带速度变化引起的振幅变化。 反馈电路的阻抗和延伸到放大器的信号源的阻抗使得放大器的输出是在宽频带上在感应头中产生的电压的积分。

公开(公告)号：US4147990A

公开(公告)日：1979-04-03

申请号：US884322

申请日：1978-03-07

申请人： Edwin A. Dokus ,  Thomas K. Naylor

发明人： Edwin A. Dokus ,  Thomas K. Naylor

IPC分类号： H03F1/26 ,  A61B5/04 ,  A61B5/0428 ,  G06G7/186 ,  H03K17/16 ,  H03K17/30 ,  H03F21/00

CPC分类号： H03K17/30 ,  A61B5/04004 ,  G06G7/186 ,  H03K17/16

摘要： An improved fast-recovery circuit for ECG amplifiers and the like. The fast-recovery circuit includes threshold responsive circuitry connected in parallel with part of the resistance associated with the integrator in a feedback circuit of the amplifier. The threshold responsive circuitry operates to increase feedback frequency response of the integrator when the normally very low frequency output signal of the amplifier exceeds a certain threshold. The improved circuit prevents the threshold circuitry from responding to pulses or excursions in the output signal of a relatively higher frequency content and which exceed the amplitude threshold for less than a predetermined interval, as for instance caused by pacer spikes, large QRS complexes and the like. Preferably, the improved threshold responsive means comprises transistor means connected across the integrator's resistance and having capacitance means across the base-emitter circuit thereof for inhibiting response to certain short duration signals.

摘要翻译： 用于ECG放大器的改进的快速恢复电路等。 快速恢复电路包括与放大器的反馈电路中与积分器相关联的电阻的一部分并联连接的阈值响应电路。 当放大器的正常极低频输出信号超过一定阈值时，阈值响应电路用于增加积分器的反馈频率响应。 改进的电路防止阈值电路响应相对更高频率内容的输出信号中的脉冲或偏移，并且超过阈值小于预定间隔，例如由起搏器尖峰，大QRS复合物等引起的 。 优选地，改进的阈值响应装置包括跨越积分器电阻并且跨过其基极 - 发射极电路的电容装置连接的晶体管装置，用于抑制对某些短持续时间信号的响应。