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1.发明授权Apparatus and method for automatic transfer of data base information in response to load distribution among interconnected terminal stations 失效响应于相互连接的终端站之间的负载分布自动传送数据库信息的装置和方法
公开(公告)号：US5450584A
公开(公告)日：1995-09-12
申请号：US270785
申请日：1994-07-05
CPC分类号： G06F9/5088 , G06F17/30575 , G06F9/5083 , Y10S707/966 , Y10S707/99953
摘要： A distributed data-base communication network system includes a plurality of terminal stations which respectively contain data-base devices and which are associated with one another by means of data communication lines. A data-base management apparatus is provided in each of these stations and includes an internal load monitor device for monitoring the accessing load of the internal data-base device of the internal station and an external load monitor device for monitoring the accessing loads of the data-base devices of the external terminal stations. A data-base load distribution management device is connected to the monitor devices, and automatically transfers at least part of the data-base information of the internal data-base device to a selected one of the external terminal stations when the internal data-base accessing load has exceeded the maximum permissible level, thus enhancing the uniformity of distribution of the data-base load of the communication network.
摘要翻译： 分布式数据库通信网络系统包括分别包含数据基设备并且通过数据通信线路相互关联的多个终端站。 在这些站中的每一个中都提供数据库管理装置，并且包括用于监视内部站的内部数据库装置的访问负载的内部负载监视装置和用于监视数据的访问负载的外部负载监视装置 - 外部终端站的基站设备。 数据库负载分配管理装置连接到监视器装置，并且当内部数据库访问时，自动地将内部数据库装置的数据库信息的至少一部分传送到所选择的一个外部终端站 负载已超过最大允许电平，从而提高通信网络数据库负载分配的均匀性。
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公开(公告)号：US4254306A
公开(公告)日：1981-03-03
申请号：US967017
申请日：1978-12-06
CPC分类号： H04M9/005
摘要： A key telephone system, in which a key service unit is provided for selectively connecting a plurality of key telephone sets to a CO line by two control lines and a talking line. The key service unit is comprised of a DC power source having two terminals of a positive output voltage and a negative output voltage, a first detector connected to one of two control lines for detecting a state where one of the two output voltages is applied across the two control lines to flow a current of predetermined value therethrough, a first switch for connecting the other output voltage across the control lines in response to the output of the first detector, a second detector connected to the other of the two control lines for detecting a state where the other of the output voltages is applied across the two control lines to flow a current larger than a certain value therethrough, and a second switch for connecting the talking line to the CO line in response to the output of the second detector. Additional circuitry is further provided to perform the intercomm. talking operation, the holding operation for the CO line, and the privacy operation and other functions.
摘要翻译： 一种密钥电话系统，其中提供了一个密钥服务单元，用于通过两个控制线和通话线路将多个密钥电话机选择性地连接到CO线路。 关键服务单元包括具有正输出电压和负输出电压的两个端子的直流电源，第一检测器连接到两个控制线中的一个，用于检测两个输出电压中的一个施加在两个输出电压之间的状态 两条控制线流过预定值的电流;第一开关，用于响应于第一检测器的输出，连接控制线上的另一输出电压;第二检测器，连接到两条控制线中的另一条，用于检测 状态，其中输出电压中的另一个施加在两条控制线上，以流过大于特定值的电流;以及第二开关，用于响应于第二检测器的输出将通话线连接到CO线。 还提供附加电路以执行通信。 谈话操作，CO线保持操作以及隐私操作等功能。
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公开(公告)号：US3953747A
公开(公告)日：1976-04-27
申请号：US439984
申请日：1974-02-06
申请人： Kouichi Sekiguchi
发明人： Kouichi Sekiguchi
CPC分类号： H03K17/68
摘要： An AC wave switching circuit in which the collector-emitter path of a switching transistor is inserted in series in the circuit loop of an AC signal to be switched. A control voltage source capable of flowing a DC current greater than a peak value of the AC signal current is connected across the base-emitter path of the switching transistor, so that the switching of the AC signal is performed by the voltage of the control voltage source without flowing any DC current in the collector-emitter path of the transistor. The collector-emitter path of another switching transistor may be connected in series or in parallel with the collector-emitter path of the first-mentioned switching transistor. At least one of a diode and a resistor may be included in the base-emitter path circuit of each switching transistor. The circuit loop may provide an output by transformer coupling or the capacitor coupling.
摘要翻译： 交流波切换电路，其中开关晶体管的集电极 - 发射极路径串联插入要切换的交流信号的电路环路中。 能够使流过大于交流信号电流的峰值的直流电流的控制电压源连接在开关晶体管的基极 - 发射极路径两端，使得交流信号的切换由控制电压 源极，而不会流过晶体管的集电极 - 发射极路径中的任何直流电流。 另一个开关晶体管的集电极 - 发射极路径可以与先前提到的开关晶体管的集电极 - 发射极路径串联或并联连接。 每个开关晶体管的基极 - 发射极路径电路中可以包括二极管和电阻器中的至少一个。 电路回路可以通过变压器耦合或电容耦合来提供输出。
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4.发明授权Two-tone generator using switching transistors in LC resonant circuits controlled by push-button 失效使用按钮控制的LC谐振电路中的开关晶体管的双音发生器
公开(公告)号：US3971896A
公开(公告)日：1976-07-27
申请号：US523497
申请日：1974-11-13
申请人： Kouichi Sekiguchi
发明人： Kouichi Sekiguchi
CPC分类号： H04M1/50
摘要： A two tone generator using switching transistors in two LC resonance circuits each composed of a coil and a capacitor for producing a multifrequency signal in the form of two-tone signal by switching the value of the inductances of the coils in response to the control of push-button switches, in which only one make contact is actuated in response to the depression of each push button, so that the ON-OFF output of the contact is employed to control selected ones of switching transistors in each of the two resonance circuits for determining the oscillation frequencies of a two-tone oscillator associated with the two LC resonance circuits. The switching transistors comprises a first group of either NPN transistors or PNP transistors and a second group of NPN transistors or PNP transistors. The switching transistors are coupled with the two LC resonance circuits to switch the value of the inductance of each coil in response to the turning ON of the collector-emitter path thereof. Each of the switching transistors is turned-ON by flowing a base current more than the peak value of the AC signal developed in the resonance circuit without flowing any DC current in the collector-emitter path thereof.
摘要翻译： 一种双音调发生器，其使用两个LC谐振电路中的开关晶体管，每个LC谐振电路由线圈和电容器构成，用于通过响应于推压控制来切换线圈的电感值来产生双音信号形式的多频信号 按钮开关，其中响应于每个按钮的按压仅启动一个触点，使得触点的导通断开输出用于控制两个谐振电路中的每一个中的选择的开关晶体管，以确定 与两个LC谐振电路相关联的双音振荡器的振荡频率。 开关晶体管包括第一组NPN晶体管或PNP晶体管和第二组NPN晶体管或PNP晶体管。 开关晶体管与两个LC谐振电路耦合，以响应于其集电极 - 发射极路径的导通而切换每个线圈的电感值。 通过使基极电流大于在谐振电路中产生的AC信号的峰值而不流过其集电极 - 发射极路径中的任何DC电流而使每个开关晶体管导通。
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5.发明授权Circuit for preventing impulse generation by operating a hook switch in a telephone set 失效用于通过操作电话机中的挂钩开关来防止产生脉冲的电路
公开(公告)号：US3969591A
公开(公告)日：1976-07-13
申请号：US533801
申请日：1974-12-18
申请人： Kouichi Sekiguchi
发明人： Kouichi Sekiguchi
CPC分类号： H04M1/67
摘要： A circuit for preventing impulse generation caused by operating a hook switch in a telephone set, in which the hook switch has a make contact and a break contact which are make-before-break contacts in going to the OFF-hook condition, and are break-after-make contacts in going to the ON-hook condition. A capacitor is charged through the make contact when it is closed in the OFF-hook condition. A transistor switching circuit is provided to turn ON by the charge on the capacitor so as to short-circuit between telephone line terminals of the telephone set when the break contact is closed in the ON-hook condition.
摘要翻译： 一种用于防止在电话机中操作挂钩开关引起的脉冲发生的电路，其中钩开关具有接触断开触点和断开触点以进入摘机状态，并且断开 - 接通后进入挂机状态。 当断电状态下闭合时，电容器通过制动触点充电。 提供晶体管开关电路，通过电容器上的电荷接通，以便在断电触点闭合状态时使电话机的电话线端子短路。
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公开(公告)号：US4410767A
公开(公告)日：1983-10-18
申请号：US066927
申请日：1979-08-16
申请人： Kouichi Sekiguchi
发明人： Kouichi Sekiguchi
CPC分类号： H04M9/005
摘要： A key telephone system in which a key service unit is provided for selectively connecting a plurality of key telephone sets to at least a pair of CO lines through at least one control line provided in correspondence to the CO lines and a common line. The key service unit comprises a DC power source for producing two outputs respectively having certain positive and negative potential differences with respect to a reference potential, at least one first detector provided in correspondence to the CO lines and selectively connected to the control line for detecting the state in which one of the two output voltages is applied across the control line and the common line to flow a current of predetermined value, at least one second detector provided in correspondence to the CO lines and selectively connected to the control line for detecting the state in which the other of the two output voltages is applied across the control line and the common line to flow a current larger than a certain value, and at least one switching means provided in correspondence to the CO lines for disconnecting the first detector from the control line and for connecting the second detector to the control line when the first detector produces an output.
摘要翻译： 一种密钥电话系统，其中提供了一个密钥服务单元，用于通过与CO线和公共线对应的至少一个控制线选择性地将多个密钥电话机连接到至少一对CO线路。 密钥服务单元包括一个DC电源，用于产生分别相对于参考电位具有特定正和负电位差的两个输出;至少一个第一检测器，其对应于CO线设置并选择性地连接到控制线，用于检测 将两个输出电压中的一个施加在控制线和公共线之间以流过预定值的电流的状态;至少一个第二检测器，其对应于CO线设置并选择性地连接到用于检测状态的控制线 其中两个输出电压中的另一个被施加在控制线和公共线上以流过大于特定值的电流，以及至少一个与CO线对应地设置的开关装置，用于将第一检测器与控制器 并且用于当第一检测器产生输出时将第二检测器连接到控制线。
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公开(公告)号：US4234765A
公开(公告)日：1980-11-18
申请号：US917578
申请日：1978-06-21
CPC分类号： H04M9/007
摘要： A key telephone system, in which a plurality of key telephone sets are selectively connected to a plurality of CO lines by the use of a plurality of talking lines under control of a key service unit and a plurality of control lines. In order to seize a CO line, a CO line seizure signal from one of key telephone sets is time-divisionally transmitted at a low speed and received by a speed change memory of the key service unit. A high-speed output from the speed change memory is added with dial or hook information and then space-divided for seizing a desired one of the CO lines. A talking operation, a holding operation, a privacy operation and a synchronizing operation in this system are performed on the base of the above operation principle.
摘要翻译： 一种密钥电话系统，其中多个密钥电话机通过在密钥服务单元和多个控制线路的控制下使用多个通话线路选择性地连接到多个CO线路。 为了抓取CO线，来自一个关键电话机的CO线路发送信号以低速分时发送并由密钥服务单元的速度变化存储器接收。 来自变速存储器的高速输出添加有拨号或挂钩信息，然后空格划分以占用期望的一个CO线路。 基于上述操作原理执行该系统中的通话操作，保持操作，隐私操作和同步操作。
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8.发明授权
公开(公告)号：US3976846A
公开(公告)日：1976-08-24
申请号：US485624
申请日：1974-07-03
CPC分类号： H04M1/677
摘要： A dial device for a telephone set having a function of preventing toll dialing, in which a resistor or a zener diode is connected in series to a dial impulse contact of the dial device while a series connection of a first diode and a control circuit is connected in parallel with the resistor or the zener diode. A series-connection of a minimum pause contact and a second diode is connected in parallel with the dial impulse contact. An AND output of a dial impulse signal and a minimum pause signal from the minimum pause contact is obtained from a junction between the dial impulse contact and the first diode to apply it to a first input terminal of the control circuit, while the minimum pause signal is obtained from a junction between the minimum pause contact and the second diode to apply it to a second input terminal of the control circuit. A semiconductor switching element is connected in shunt with the dial impulse contact to prevent the sending-out of dialled impulses in response to the output of the control circuit when the dial impulse signal is a series of numbers representative of the toll dialling starting from a number 0 or numbers 10.
摘要翻译： 具有防止长途拨号功能的电话机拨号装置，其中电阻器或齐纳二极管与第一二极管和控制电路的串联连接连接到拨号装置的拨号脉冲触点 与电阻器或齐纳二极管并联。 最小暂停触点和第二二极管的串联连接与拨号脉冲触点并联。 从拨号脉冲触点和第一二极管之间的连接处获得拨号脉冲信号的AND输出和来自最小暂停触点的最小暂停信号，以将其施加到控制电路的第一输入端，而最小暂停信号 是从最小暂停触点和第二二极管之间的结点获得的，以将其施加到控制电路的第二输入端。 半导体开关元件与拨号脉冲触点分流连接，以防止当拨号脉冲信号是表示从号码开始的代号长途拨号的一系列数字时响应于控制电路的输出而发送拨打的脉冲 0或数字10。
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