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    • 1. 发明授权
    • Switching network for megahertz frequency signals
    • 用于兆赫频率信号的交换网络
    • US4443773A
    • 1984-04-17
    • US341521
    • 1982-01-21
    • Bernhard RallJohann BurkhartKlaus Schluter
    • Bernhard RallJohann BurkhartKlaus Schluter
    • H04N5/268H01L27/00H03K17/00H04Q3/52H05K1/00H05K1/02H05K3/46H01P1/15H04Q3/00
    • H05K1/0219H04Q3/521H05K1/0228H05K1/0289H05K2201/09672
    • In a switching network in matrix form for megahertz frequency signals, including: a multilayer printed circuit board having a plurality of row signal lines located in a first plane, a plurality of column signal lines located in a second plane and extending transverse to the row lines, the row and column signal lines intersecting one another in an intersection area, control and/or shielding conductors surrounding the lines, and metal shields enclosing the planes; a crosspoint array integrated on a chip and providing a plurality of crosspoints for the intersection area, each crosspoint presenting two semiconductor switches arranged to couple a respective column signal line to a respective row signal line; and a shielded package enclosing the chip, each line is constituted by a balanced pair of stripline conductors and is terminated at each end by its characteristic impedance. Between two signal conductor pairs in a plane there are control or power-supply conductors which are grounded for high frequencies for shielding purposes. Each crosspoint includes a balanced amplifier having two amplifying paths with internal neutralization of crosstalk via additional non-operating transistors, and high impedance input and output circuits connecting the amplifier between its row and column lines, and the module is connected to the circuit board via plug-in socket elements fastened to the circuit board and mating plug connector pins fastened to the shielded package.
    • 在用于兆赫兹频率信号的矩阵形式的开关网络中,包括:多层印刷电路板,其具有位于第一平面中的多条行信号线,多个列信号线位于第二平面中并且横向于行线 行交叉区域中的行和列信号线彼此相交,围绕线的控制和/或屏蔽导体以及围绕该平面的金属屏蔽; 集成在芯片上并为交叉区域提供多个交叉点的交叉点阵列,每个交叉点呈现两个半导体开关,其布置成将相应的列信号线耦合到相应的行信号线; 和一个封装芯片的屏蔽封装,每条线由一对平行的带状线导体构成,每端由其特征阻抗端接。 在平面中的两个信号导体对之间有用于屏蔽目的的用于高频接地的控制或供电导体。 每个交叉点包括一个平衡放大器,具有两个放大路径,通过额外的非工作晶体管内部中和串扰,以及高阻抗输入和输出电路,连接放大器在其行和列线之间,并且模块通过插头连接到电路板 - 固定到电路板的插座元件和固定到屏蔽封装的匹配插头连接器针脚。
    • 2. 发明授权
    • Arrangement for monitoring a two-wire bus line
    • 监控双线总线的安排
    • US5781585A
    • 1998-07-14
    • US419925
    • 1995-04-11
    • Jurgen DornerBernhard RallRoland Haun
    • Jurgen DornerBernhard RallRoland Haun
    • H04L12/24H04L12/26H03B3/46H03B17/00H04Q1/20
    • H04L43/00H04L12/2602H04L43/0811
    • An arrangement for monitoring a two-wire bus line for serial transmission of digital data includes a bus subscriber receiving circuit coupled to the two-wire line and including three comparators each having two inputs and an output for producing a logical output signal in dependence of signals at the two inputs. A signal line voltage on each wire of the two-wire bus line is applied, respectively, to the two inputs of a first one of the comparators and one of the two signal line voltages, an auxiliary voltage is applied, respectively, to the two inputs of a second one of the comparators and the other of the two signal line voltages and an auxiliary voltage being applied, respectively, to the two inputs of a third one of the comparators. A logic circuit is coupled to the outputs of the three comparators for simultaneously receiving the logical output signals of at least the second and third comparators and for signaling a fault-free condition of the bus system if all received logical output signals from the comparators are in agreement, and for signaling a fault if all received logical output signals from the comparators are not in agreement.
    • 用于监视用于数字数据的串行传输的双线总线的装置包括耦合到双线线路的总线用户接收电路,并且包括三个具有两个输入的比较器和用于根据信号产生逻辑输出信号的输出 在两个输入。 分别将两线总线的每条线上的信号线电压施加到比较器的第一个和两个信号线电压中的一个的两个输入端,辅助电压分别施加到两个 比较器中的第二个输入和两个信号线电压中的另一个以及辅助电压分别施加到第三个比较器的两个输入端。 逻辑电路耦合到三个比较器的输出,用于同时接收至少第二和第三比较器的逻辑输出信号,并且用于发信号通知总线系统的无故障状态,如果来自比较器的所有接收到的逻辑输出信号都在 并且如果来自比较器的所有接收到的逻辑输出信号都不一致,则用于发信号通知故障。
    • 5. 发明授权
    • Circuit arrangement for producing control means from line current
    • 用于从线路电流产生控制装置的电路装置
    • US4453038A
    • 1984-06-05
    • US370401
    • 1982-04-21
    • Kurt EberhardtDietrich HoppnerBernhard Rall
    • Kurt EberhardtDietrich HoppnerBernhard Rall
    • H04M1/58H04M1/60H04M1/76H04M1/00
    • H04M1/585H04M1/6025H04M1/76
    • To control the earphone and microphone amplifiers as well as the balancing network of a subscriber's telephone terminal which is fed, through a subscriber line in communication systems, to the effect that the attenuations in subscriber lines of unequal lengths do not affect the transmission characteristics between the exchange and the subscriber, a circuit arrangement is provided for producing the necessary control function, which is simple, integratable and has minimum tolerances. Above a predetermined threshold value, a voltage proportional to the line current variations controls the emitter-to-base junction of two grounded-base transistors at the collectors of which the control current is available. The control currents produce their effect on the negative feedback of the microphone and the earphone amplifiers. An increasing line current causes the cotrol current to decrease, thereby effecting a stronger feedback and a reduced amplification. Further, the voltage proportional to the line current variations and available at the emitter resistor of another transistor, controls the balancing impedance through a current mirror, to attenuate the sidetone independently of the length of the subscriber line.
    • 为了控制耳机和麦克风放大器以及通过通信系统中的用户线路馈送的用户电话终端的平衡网络,使得不等长度的用户线路中的衰减不影响 交换机和用户,提供了用于产生必要控制功能的电路布置,其简单,可集成并具有最小容限。 高于预定阈值时,与线路电流变化成比例的电压控制两个接地基极晶体管的发射极 - 基极结,其中控制电流可用于集电极。 控制电流对麦克风和耳机放大器的负反馈产生影响。 线电流增加导致电流电流降低,从而实现更强的反馈和减小的放大。 此外,与另一晶体管的发射极电阻的线电流变化成比例的电压通过电流镜控制平衡阻抗,以独立于用户线的长度衰减侧音。
    • 6. 发明授权
    • Circuit for producing direct voltages from pulses
    • 用于从脉冲产生直流电压的电路
    • US4087813A
    • 1978-05-02
    • US706480
    • 1976-07-19
    • Willy MinnerBernhard Rall
    • Willy MinnerBernhard Rall
    • H03M1/82H03J5/02H03M1/00H03K13/02
    • H03J5/0254H03M1/827
    • A circuit, for producing direct voltages, for example the tuning voltages for a television or radio receiver, lying within a direct voltage range from pulses fed to an integrating circuit at whose output the direct voltages appear. A plurality of pulses (I) are fed to the integrating circuit, at whose output the direct voltage (U.sub.I) appears, within a period duration (T) assigned to the desired direct voltage range, with the period duration (T) being at least of the magnitude T = (U.sub.max - U.sub.min) .multidot..DELTA..tau./.DELTA.U.sub.I, where (U.sub.max - U.sub.min) is the desired direct voltage range, .DELTA..tau. is the shortest time duration of a pulse (I) and .DELTA.U.sub.I is the smallest voltage step width associated with the shortest pulse duration .DELTA..tau. by which two different direct voltages (U.sub.I) at least differ from one another.
    • 用于产生直流电压的电路,例如电视或无线电接收机的调谐电压,位于从输出直流电压的积分电路的脉冲的直接电压范围内。 在分配给期望的直流电压范围的周期持续时间(T)期间,多个脉冲(I)被馈送到积分电路,在其输出处出现直流电压(UI),周期持续时间(T)至少为 的幅度T =(Umax-Umin)×DELTA tau / DELTA UI,其中(Umax-Umin)是期望的直流电压范围,DELTAτ是脉冲(I)的最短持续时间,并且DELTA UI是最小电压 与两个不同的直接电压(UI)至少彼此不同的最短脉冲持续时间DELTAτ相关联的步长。
    • 7. 发明授权
    • Electronic switches and switch networks
    • 电子开关和开关网络
    • US3931475A
    • 1976-01-06
    • US533696
    • 1974-12-17
    • Erich BachleHelmut KliemBernhard Rall
    • Erich BachleHelmut KliemBernhard Rall
    • H03K17/68H04Q3/52
    • H04Q3/521H03K17/68
    • In an electronic switching device for use as the switching component of a switching network in a telephone central office, the device being composed of a switching transistor connected in series in the signal conduction path for switched signals and a controllable impedance connected in a shunt branch, the switching transistor, in its conductive state, having a low series resistance and an associated high shunt resistance, and, in its blocking state, having a high series resistance and an associated low shunt resistance, the shunt branch is composed of a control transistor having a control voltage applied to its base, having its collector connected to the base of the switching transistor, and having its emitter connected to the switching transistor through a resistor to constitute a feedback path for the switching transistor, a voltage-dependent resistor connected to the base of the switching transistor, and suitable sources of operation voltages, the voltages and characteristics of the voltage-dependent resistor being selected to be such that when the switching transistor is conductive, the control transistor operates conductively in its active region and the voltage-dependent resistor presents a high resistance and when the switching transistor is blocking the control transistor is also blocking and the voltage-dependent resistor has a low resistance and supplies to the base of the switching transistor a voltage which maintains the switching transistor blocking.
    • 在用作电话中心局的交换网络的切换部件的电子开关装置中,该装置由串联连接在用于开关信号的信号传导路径中的开关晶体管和连接在分流支路中的可控阻抗构成, 在其导通状态下的开关晶体管具有低串联电阻和相关的高分流电阻,并且在其阻塞状态下具有高串联电阻和相关的低分流电阻,并联支路由具有 施加到其基极的控制电压,其集电极连接到开关晶体管的基极,并且其发射极通过电阻器连接到开关晶体管,以构成开关晶体管的反馈路径,连接到开关晶体管的电压相关电阻器 开关晶体管的基极,以及适合的工作电压源,电压和特性 e电压相关电阻被选择为使得当开关晶体管导通时,控制晶体管在其有源区域中导电,并且电压依赖电阻器呈现高电阻,并且当开关晶体管阻塞时,控制晶体管也阻塞 并且电压依赖电阻器具有低电阻并且向开关晶体管的基极提供保持开关晶体管阻塞的电压。
    • 8. 发明授权
    • Circuit for adapting characteristic wave impedance
    • 适应特性波阻抗的电路
    • US06856165B2
    • 2005-02-15
    • US10631005
    • 2003-07-31
    • Bernhard Rall
    • Bernhard Rall
    • H04L12/40H04L25/08H03K19/003
    • H04L12/40032H04L12/40H04L25/0266H04L25/085H04L2012/40273
    • In a circuit arrangement for adapting the characteristic wave impedance at line ends of a vehicle data bus having at least two data bus lines and data terminals, each with a transceiver unit for differential-mode signal transmission on the data bus, the data bus is connected to the transceiver unit via a connection interface that includes a reactor for filtering interference on the data bus and an adaptation resistor network for adapting the characteristic wave impedance of a data bus line. The adaptation resistor network is arranged between the reactors and the respective line ends of the data bus lines, while the adaptation resistor network connects the line ends to ground via a capacitor.
    • 在用于调整具有至少两条数据总线线路和数据终端的车辆数据总线的线路端的特征波阻抗的电路装置中,每一个具有用于在数据总线上进行差模信号传输的收发器单元,数据总线被连接 通过连接接口连接到收发器单元,该连接接口包括用于过滤数据总线上的干扰的电抗器和用于调整数据总线线路的特征波阻抗的适配电阻网络。 适配电阻网络布置在电抗器和数据总线线路的相应线路端之间,而自适应电阻网络通过电容器将线路端连接到地。