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公开(公告)号：US3914740A
公开(公告)日：1975-10-21
申请号：US39408873
申请日：1973-09-04
Applicant: NORTHERN ELECTRIC CO
Inventor： HAN SWAN BING
Abstract: An error detector for a pseudo-random sequence of digits which automatically provides a true error count regardless of the density and pattern of the received errors. The detector first compares the incoming sequence with a replicated sequence to derive indicated error digits. A corrector then compares the sequence arrangement of all indicated error digits to derive a further sequence of only true error digits. Both the detector and corrector will automatically resynchronize if synchronization is lost with only a few false errors being recorded during the interval.
Abstract translation: 用于伪随机数字序列的误差检测器，其自动提供真实误差计数，而不管接收到的误差的密度和模式如何。 检测器首先将输入序列与复制序列进行比较，以得出指示的错误数字。 然后，校正器比较所有指示的错误数字的序列排列，以导出仅真实错误数字的另外的序列。 如果同步丢失，检测器和校正器将自动重新同步，在间隔期间只记录几个假错误。
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2.发明授权
公开(公告)号：US3889075A
公开(公告)日：1975-06-10
申请号：US52135774
申请日：1974-11-06
Applicant: NORTHERN ELECTRIC CO
Inventor： MORRELL RONALD JOSEPH , GUMB BEVERLEY WILLIAM , LAING GRAHAM STIRLING
CPC classification number: H03J5/32 , H01H13/74 , Y10T74/20244
Abstract: An interconnector for connecting the latch bars of two or more pushbutton assemblies, particularly as used in telephones. The interconnector is connected to each latch bar and is resiliently urged to a position in which it moves the latch bars to their normal -latching-position. Actuation of any pushbutton, in any row of pushbuttons moves directly its related latch-bar and indirectly via the interconnector all other latch-bars. Thus actuation of any pushbutton will release any other previously actuated and latched pushbutton, irrespective of which row of pushbuttons the previously actuated pushbutton is in. The interconnector comprises an extension on one end of each latchbar, a rod engaging in a formation in each extension, a member pivotally mounted in a frame and carrying the rod, and a spring acting on the pivotally mounted member.
Abstract translation: 用于连接两个或更多个按钮组件的闩锁杆的互连器，特别是用于电话机中。 互连器连接到每个闩锁杆并被弹性地推动到其将闩锁杆移动到其正常的锁定位置的位置。 任何按钮的任何按钮的启动，直接移动其相关的闩锁杆，并通过互连器间接移动所有其他闩锁杆。 因此，任何按钮的致动将释放任何其它先前致动和锁定的按钮，而不管先前致动的按钮的哪一排按钮。互连器包括在每个闩杆的一端上的延伸部， 延伸部，枢转地安装在框架中并承载杆的构件以及作用在枢转安装构件上的弹簧。
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公开(公告)号：US3847010A
公开(公告)日：1974-11-12
申请号：US32835173
申请日：1973-01-31
Applicant: NORTHERN ELECTRIC CO
Inventor： ZUBER B
CPC classification number: H01B13/262 , B21C37/08 , B21D5/10
Abstract: An overlapping die assembly for forming a longitudinal seam in a tube shaped from a continuous tape, in which an annular casing is mountable for free flotation, an annular retainer is freely rotatable concentrically in the casing, and a split die ring is mounted concentrically within the retainer to form a step in the inner circumference of the unit. The step is adjustable in depth and the ring is urged rotationally in a direction outwardly from the face of the step.
Abstract translation: 一种用于在由连续带形成的管中形成纵向接缝的重叠模具组件，其中环形壳体可安装用于自由浮选，环形保持器可以同心地自由地旋转到壳体中，并且分离模具环同心地安装在 保持器以在单元的内圆周中形成台阶。 台阶的深度是可调节的，并且环从台阶面向外的方向旋转地推动。
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公开(公告)号：US3808919A
公开(公告)日：1974-05-07
申请号：US29963772
申请日：1972-10-20
Applicant: NORTHERN ELECTRIC CO
CPC classification number: B26D7/08 , B26D1/035 , H01G7/023 , Y10T83/0341 , Y10T83/0605 , Y10T83/6603 , Y10T83/8725
Abstract: An electrically charged tape is slit by first backing the charged tape with a metallized tape, the charged tape in contact with the non-metallic surface of the metallized tape. The combined tapes are then passed over one or more cutters. The charged tape is completely cut through but the backing tape is only cut partially through. Clean cut edges and minimal distortion is obtained, even for very thin tapes.
Abstract translation: 通过首先用金属化带将带电带带背带带电带，带电带与金属带的非金属表面接触。 然后将组合的带通过一个或多个切割器。 充电的胶带是完全切割的，但背衬胶带仅部分切割。 即使对于非常薄的磁带，也可以获得清晰的切割边缘和最小的变形。
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公开(公告)号：US3803344A
公开(公告)日：1974-04-09
申请号：US34931973
申请日：1973-04-09
Applicant: NORTHERN ELECTRIC CO
Inventor： HEMMING R , THOMPSON J , MAIN H
IPC: H01B7/22
CPC classification number: H01B7/226
Abstract: A flexible armoured cord, as used in pay telephone units, is given an epoxy-resin coating, preferably by a fluid bed process. A very thin uniform coating is applied and averts wear and damage to the telephone unit housing without reducing flexibility of the cord. The coating is extremely abrasion resistant.
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Patent Agency Ranking
公开(公告)号：US3790720A
公开(公告)日：1974-02-05
申请号：US3790720D
申请日：1972-10-27
Applicant: NORTHERN ELECTRIC CO
Inventor： SCHARTMANN K
CPC classification number: H04Q1/457
Abstract: A signal selected from a family of signals having different predetermined frequencies is identified, within predetermined frequency limits. In one embodiment a decoder of the digital type is used to decode multiple frequency telephone signalling. A filter separates two signalling frequency signals into upper and lower frequency groups. Each of the signals is counted in upper and lower group circuits and after a predetermined count, to allow for a settling time, upper and lower group timing interval signals are generated. At the end of the time interval the upper and lower group circuits cease to count. In the continuing presence of the signals the counts are decoded to identify the signalling frequency signals received. The use of digital circuitry yields a space and cost saving over previously used analogue circuitry.
Abstract translation: 在预定频率范围内识别从具有不同预定频率的信号族中选出的信号。 在一个实施例中，数字类型的解码器用于解码多频电话信令。 一个滤波器将两个信号频率信号分离成上和下频率组。 每个信号在上下组电路中进行计数，并且在预定计数之后，为了允许建立时间，产生上组和下组组定时间隔信号。 在时间间隔结束时，上下组电路停止计数。 在信号的持续存在中，对计数进行解码以识别所接收的信令频率信号。 使用数字电路比以前使用的模拟电路节省空间和成本。
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公开(公告)号：US3789480A
公开(公告)日：1974-02-05
申请号：US3789480D
申请日：1972-02-10
Applicant: NORTHERN ELECTRIC CO
IPC: H01B13/20
CPC classification number: H01B13/204 , Y10T29/49123 , Y10T29/5142 , Y10T29/5148 , Y10T29/532 , Y10T29/53348 , Y10T29/53391
Abstract: A method of and apparatus for applying insulating discs upon a continuously advancing conductor comprises advancing a continuous chain of discs towards a disc applicator station. First and second means carried by an applicator wheel sever individual discs from said chain and advance the discs along a predetermined path. Slitting means mounted in said predetermined path impart a slit to the disc and an arcuate guide member extending from the slitting means to the conductor enters the slit in the disc and gradually expands the slit to facilitate application of the disc upon the conductor.
Abstract translation: 用于在连续行进的导体上施加绝缘盘的方法和装置包括将连续的盘链推向盘片施加工位。 由施加器轮承载的第一和第二装置将单独的盘从所述链上切割并沿着预定路径前进。 安装在所述预定路径中的分条装置给盘提供狭缝，并且从分切装置延伸到导体的弓形引导件进入盘中的狭缝，并逐渐扩大狭缝以便于将盘施加到导体上。
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公开(公告)号：US3787639A
公开(公告)日：1974-01-22
申请号：US3787639D
申请日：1972-11-16
Applicant: NORTHERN ELECTRIC CO
Inventor： BATTRICK P
CPC classification number: H04M1/2725
Abstract: An electronic pushbutton dial, which generates dial pulse type signals on a telephone line in response to a digit selected on a pushbutton pad, for signalling step-by-step switching offices. The digit selected is coded and stored in a non-destructive readwrite memory and is subsequently loaded into a presettable counter. A pulse generator is arranged to generate and feed dialpulse-timing signals simultaneously into the presettable counter and to a solid state switch which is in series with the telephone line. The digit selected is transmitted to the central office by interrupting the telephone line current at the dial-pulse-timing signal rate until the count in the presettable counter reaches a predetermined value. The interdigit interval is generated by loading a fixed number into the presettable counter and feeding dial-pulse-timing signals into the presettable counter, while disabling the solid state switch, until the count in the presettable counter again reaches said predetermined value.
Abstract translation: 电子按钮拨盘，其响应于在按钮板上选择的数字，在电话线上产生拨号脉冲类型信号，用于信令逐步切换办公室。 所选择的数字被编码并存储在非破坏性的读写存储器中，并随后被加载到可预置的计数器中。 脉冲发生器被布置成产生并将拨号脉冲定时信号同时馈送到预设计数器和与电话线串联的固态开关。 所选择的数字通过以拨号脉冲定时信号速率中断电话线电流直到预设计数器中的计数达到预定值而被发送到中心局。 通过将固定数量加载到预设计数器中并将拨号脉冲定时信号馈送到预设计数器中，同时禁用固态开关，直到预设计数器中的计数器再次达到所述预定值，产生叉指间隔。
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公开(公告)号：US3786349A
公开(公告)日：1974-01-15
申请号：US3786349D
申请日：1973-05-03
Applicant: NORTHERN ELECTRIC CO
Inventor： DEVENYI T
CPC classification number: G01R27/02 , G01N27/223 , G01R1/30
Abstract: An instrument, for measuring the electrical reactance and loss characteristics of a sample, includes a means for applying an alternating electrical signal across the sample and deriving therefrom a voltage signal having a phase and magnitude relationship with the electrical signal, according to the reactance and loss characteristics of the element and a means for synchronously rectifying the voltage signal. An integrator produces an integral of the rectified voltage, the value of which is indicative of the value of one of the characteristics. The measurement is obtained at the end of one or more full cycles of the alternating electrical signal. The instrument is operable over a wide range of frequencies, for example from 0.01 Hz to 100 KHz. It is particularly useful at very low frequencies as it provides measurements more quickly than a typical reactance bridge or phase meter.
Abstract translation: 用于测量样品的电抗和损耗特性的仪器包括用于在样品上施加交替电信号的装置，并根据电抗和损耗从其中得到与电信号具有相位和幅度关系的电压信号 元件的特性和用于同步整流电压信号的装置。 积分器产生整流电压的积分，其值表示特性之一的值。 测量在交流电信号的一个或多个完整周期结束时获得。 该仪器可在宽范围的频率范围内操作，例如0.01Hz至100KHz。 它在非常低的频率下特别有用，因为它比典型的电抗桥或相位计更快地提供测量。
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公开(公告)号：US3769677A
公开(公告)日：1973-11-06
申请号：US3769677D
申请日：1972-02-25
Applicant: NORTHERN ELECTRIC CO
CPC classification number: B21C37/087 , B23K1/002 , B23K1/20 , F16L9/06 , H01B13/2653 , Y10T29/53348 , Y10T29/53978
Abstract: Apparatus for correctly registering a transversely corrugated butt strap in position over the butt joint of a corrugated butt joint tube. Strap and tube are passed between guide rolls which progressively force the strap and tube into correct registration -for soldering.
Abstract translation: 用于将横向波纹对接带正确对准在波纹对接接头管的对接位置上的位置的装置。 带和管在引导辊之间通过，其逐渐地迫使带和管正确配准 - 用于焊接。
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