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公开(公告)号：EP0452083A2
公开(公告)日：1991-10-16
申请号：EP91303105.0
申请日：1991-04-09
摘要： A tyre construction (8) specifically designed for linear cable engines which is such as to adequately grip the external surface of a cable (11) and to transfer load to the cable, particularly for small diameter (10-16mm, for example) cable. In one embodiment (Fig 3), the tyre has a solid zone (9) and a pneumatic zone (10) whose radial depth d is predetermined by the cable diameter (D) for optimum performance, for example in the range D/4 to D/2. The solid zone (9) only permits partial deformation of the pneumatic zone (10) sufficient for cable gripping and then serves in the load transfer. The pneumatic zone (10) may be of the form of a low-profile tyre or be provided by voids/cells (21 - Fig 4) disposed adjacent the radially outermost region of the tyre.
摘要翻译： 特别设计用于线性电缆引擎的轮胎结构（8），其能够充分地抓住电缆（11）的外表面并且将负载传送到电缆，特别是对于小直径（例如10-16mm）的电缆。 在一个实施例（图3）中，轮胎具有固体区域（9）和气动区域（10），其径向深度d由电缆直径（D）预定，以获得最佳性能，例如在D / 4至 D / 2。 固体区域（9）仅允许气动区域（10）的部分变形足以用于电缆夹紧，然后用于负载传递。 气动区（10）可以是低轮廓轮胎的形式，或者由靠近轮胎的径向最外侧区域设置的空隙/细胞（21-图4）提供。
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公开(公告)号：EP0434203A3
公开(公告)日：1991-10-09
申请号：EP90312306.5
申请日：1990-11-09
IPC分类号： H03D7/14
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/1458 , H03D7/165 , H03D2200/0082
摘要： An arrangement for mixing r.f. signals with local oscillator signals wherein r.f. signals are fed to two separate balanced amplifiers (11,12) the outputs of which are fed to two separate balanced mixer stages (13,14) together with balanced local oscillator signals in quadrature, wherein the two outputs from each amplifier are fed one to each mixer stage.
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公开(公告)号：EP0361884A3
公开(公告)日：1991-09-04
申请号：EP89309822.8
申请日：1989-09-27
IPC分类号： H04M1/60
CPC分类号： H04M1/585 , H04M1/6008
摘要： A noise reduction arrangement for a speech transmitter circuit including a noise operated gain adjusting device and a voice operated gain adjusting device having a preset gain, wherein the noise operated gain adjusting device is arranged to control the preset gain in the voice operated gain adjusting device.
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公开(公告)号：EP0440392A2
公开(公告)日：1991-08-07
申请号：EP91300619.3
申请日：1991-01-28
IPC分类号： G02F1/137 , G02F1/1337
CPC分类号： G02F1/1416 , G02F1/133734
摘要： Relaxation effects of a uniform mode ferroelectric liquid crystal cell with obliquely evaporated alignment layers, characterised by the reduction in apparent tilt angle consequent upon removal of a switching stimulus, are eliminated by a poling treatment that typically comprises the application of a relatively low frequency (c. 500Hz) relatively large amplitude (c. 60 volts peak-to-peak) electric potential difference across the thickness of the liquid crystal layer.
摘要翻译： 具有倾斜蒸发取向层的均匀模式铁电液晶单元的弛豫效应的特征在于通过去除切换刺激而导致的表观倾斜角的减小，通过极化处理消除，通常包括施加相对较低的频率（c 500Hz）跨越液晶层的厚度的相对大的振幅（c。60伏峰 - 峰）电位差。
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公开(公告)号：EP0437350A1
公开(公告)日：1991-07-17
申请号：EP91300149.1
申请日：1991-01-09
IPC分类号： H04Q11/04
CPC分类号： H04Q11/04
摘要： A telecommunication system includes remote processing nodes (5) each having a plurality of subscribers (2) associated therewith. The nodes (5) perform concentration of telecommunications traffic. In particular the nodes form part of a TDM/TDMA network including a local TDMA controller (8) and a passive optical network (7). The controllers (8) are coupled to a network interface (9) of exchange equipment and thence to network channels (4). Use of remote concentration (at the nodes) significantly increases the number of subscribers which can be served.
摘要翻译： 电信系统包括每个具有与其相关联的多个订户（2）的远程处理节点（5）。 节点（5）执行电信业务的集中。 特别地，节点形成包括本地TDMA控制器（8）和无源光网络（7）的TDM / TDMA网络的一部分。 控制器（8）耦合到交换设备的网络接口（9），从而耦合到网络通道（4）。 使用远程集中（在节点）显着增加了可以服务的用户数量。
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公开(公告)号：EP0432895A2
公开(公告)日：1991-06-19
申请号：EP90312274.5
申请日：1990-11-09
IPC分类号： H03H11/22
CPC分类号： H03H11/18
摘要： An arrangement for forming phase quadrature components of r.f. signals comprising phase splitting means for deriving initial phase quadrature components of the r.f. signals, means for generating from the initial quadratures components respective signals having substantially equal amplitudes, means for obtaining sum and difference resultant signals [I₀, I ₀, Q₀, Q ₀] of said equal amplitude signals and output means for rendering substantially equal the amplitudes of the sum and difference resultant signals.
摘要翻译： 用于形成r.f.的相位正交分量的装置。 包括相位分离装置的信号，用于导出r.f的初始相位正交分量。 信号，用于从初始正交分量产生具有基本相等振幅的相应信号的装置，用于获得所述等幅度信号的和和差分合成信号[I0，I0，Q0，Q0]的装置，以及用于使所述等振幅信号的幅度基本相等的装置 和和差分结果信号。
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公开(公告)号：EP0429217A2
公开(公告)日：1991-05-29
申请号：EP90312188.7
申请日：1990-11-07
发明人： Gaskell, Philip Stuart , Breakenridge, Eric , King, Nigel Jonathan Richard , Ball, Michael John
CPC分类号： H03L7/1976
摘要： A fractional-N frequency synthesiser having a programmable divider and control means therefor, wherein said control means incorporates a digital delta-sigma modulator operating as an interpolator.
摘要翻译： 一种具有可编程分频器及其控制装置的分数N频率合成器，其中所述控制装置包括作为内插器操作的数字Δ-Σ调制器。
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38.发明公开Sensing exchange signalling requirements 失效Erfassung der Signalisierungserfordernisse einer Vermittlungsanlage。
公开(公告)号：EP0427416A2
公开(公告)日：1991-05-15
申请号：EP90311549.1
申请日：1990-10-22
摘要： According to the present invention there is provided a dual signalling standard subscriber's telephone equipment including means wherein the equipment is initially set to perform dialling signalling in a first mode, means responsive to initiation of the handset 'OFF-HOOK' condition to determine the presence or absence of significant line signal for a predetermined period of time (10-13), and means responsive to the output of the determining means to reset the equipment to the first or a second mode (15) for performing subsequent dialling signalling.
摘要翻译： 根据本发明，提供了一种双信令标准用户的电话设备，其包括装置，其中设备被初始设置为以第一模式执行拨号信令，响应于启动手持机的“离线”状态以确定存在或 在预定时间段（10-13）不存在明显的线路信号，以及响应于确定装置的输出将设备复位到用于执行后续拨号信令的第一或第二模式（15）的装置。
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公开(公告)号：EP0424029A2
公开(公告)日：1991-04-24
申请号：EP90311154.0
申请日：1990-10-11
IPC分类号： H01R9/09
CPC分类号： H05K3/4046 , H01R12/523 , H05K2201/0373 , H05K2201/10265 , H05K2203/0195 , Y10T29/49126
摘要： A microstrip antenna has through-hole connections made by tubular braid and resilient springs to accommodate a high coefficient of expansion, in the direction of the antenna thickness.
摘要翻译： 微带天线具有由管状编织物和弹性弹簧制成的通孔连接，以在天线厚度的方向上适应高膨胀系数。
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公开(公告)号：EP0312192A3
公开(公告)日：1991-04-03
申请号：EP88306671.4
申请日：1988-07-20
CPC分类号： G06F1/0335 , G06F7/68
摘要： A digital frequency up conversion arrangement comprising a source of fixed high speed clock pulses the frequency of which is near to the desired output frequency of the converter arrangement, a high frequency counter (20) to which the clock pulses are applied to produce a repetitive fixed m-bit digital word in parallel output form, the sample rate of the m-bit word being equal to the high speed clock frequency, divider (21) to which the high speed clock pulses are applied to form a slow clock pulse train, a slow frequency NCO (22) to which the slow clock train is applied together with frequency control signals to produce m-bit words the sample rate of which is equal to the slow clock frequency, summing means (23) to which the high sample rate and slow sample rate m-bit words are applied to produce resultant m-bit words which form a digital representation of a sine wave at the required output frequency, and digital-to-analogue conversion means (25) to which the resultant m-bit words are applied to produce an analogue sine wave at the required output frequency.
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