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1. 发明授权

US4075431A Speech path system 失效
标题翻译：语音路径系统
公开(公告)号：US4075431A
公开(公告)日：1978-02-21
申请号：US661660
申请日：1976-02-26
申请人： Takuji Mukaemachi , Tetsuo Takeshita , Tatsuru Miyoshi , Takafumi Kojima
发明人： Takuji Mukaemachi , Tetsuo Takeshita , Tatsuru Miyoshi , Takafumi Kojima
IPC分类号： H04M7/06 , H04Q3/52 , H04Q3/00
CPC分类号： H04Q3/521
摘要： A speech path system for a telephone exchange having crosspoint switches of a speech path network comprising semiconductor switching devices of four or more layers, including a memory circuit for storing the operating conditions of said switching devices, a drive circuit of a high A.C. impedance for actuating said switching devices in response to output signals from said memory circuit, a subscriber D.C. loop detection circuit of a high impedance provided at a subscriber terminal of said speech path network, and a speech current supply circuit with speech current switching means and a supply current detection circuit provided at a trunk terminal of said speech path network.

2. 发明授权

US4145577A Ringing control apparatus 失效
标题翻译：振铃控制装置
公开(公告)号：US4145577A
公开(公告)日：1979-03-20
申请号：US828671
申请日：1977-08-29
申请人： Takafumi Kojima , Tatsuru Miyoshi , Takuji Mukaemachi
发明人： Takafumi Kojima , Tatsuru Miyoshi , Takuji Mukaemachi
IPC分类号： H04M3/02 , H04M19/02 , H04M3/04
CPC分类号： H04M19/026
摘要： A ringing control apparatus comprises a bidirectional switching circuit connected in series to a ringing source, which generates an alternating current of a large amplitude, for delivering to a called subscriber the AC signal as an interrupted ringing signal, a phase detector circuit in the form of a zero level detector for detecting the phase of the AC signal generated from the ringing source, and a control circuit for generating a signal for turning on and off the switching circuit in synchronism with the output signal of the phase detector circuit. The delivery of the ringing to the called subscriber is started at a point of time when the ringing voltage comes to a zero level and is stopped at a point of time when the ringing current comes to a zero level, thereby to prevent generation of a surge voltage.
摘要翻译：振铃控制装置包括串联连接到振铃源的双向切换电路，其产生大幅度的交流电流，用于将作为中断振铃信号的AC信号传送给被叫用户，相位检测器电路形式为用于检测从振铃源产生的AC信号的相位的零电平检测器，以及用于产生用于与相位检测器电路的输出信号同步地接通和断开开关电路的信号的控制电路。在振铃电压达到零电平并在振铃电流达到零电平的时间点停止的时间点开始向被叫用户发送振铃，从而防止产生浪涌电压。

3. 发明授权

US4024352A Cross-point switch matrix and multiswitching network using the same 失效
标题翻译：交叉点开关矩阵和多开关网络使用相同
公开(公告)号：US4024352A
公开(公告)日：1977-05-17
申请号：US640701
申请日：1975-12-15
申请人： Takuji Mukaemachi , Tohru Hoshi
发明人： Takuji Mukaemachi , Tohru Hoshi
IPC分类号： H04Q3/52 , H04Q3/00
CPC分类号： H04Q3/521
摘要： A plurality of cross-point matrices each having a plurality of holding circuits respectively associated with a corresponding cross point are arranged in multiple stages, which are linked with each other to form a multi-stage switching network. Each switch matrix is provided with an associated NAND gate connected to gates capable of being selectively impressed with the signals representing the state of the holding circuits within the particular switch matrix. The output of the NAND gate is connected to an OR gate for each stage.
摘要翻译：分别具有分别与对应的交叉点相关联的多个保持电路的多个交叉点矩阵被布置成多个级，它们彼此链接以形成多级交换网络。每个开关矩阵设置有连接到门的相关“与非”门，其能够选择性地加载表示特定开关矩阵内的保持电路的状态的信号。 NAND门的输出端连接到每一级的或门。

4. 发明授权

US4068215A Cross-point switch matrix and multistage switching network using the same 失效
标题翻译：交叉点开关矩阵和多级交换网使用相同
公开(公告)号：US4068215A
公开(公告)日：1978-01-10
申请号：US696186
申请日：1976-06-15
申请人： Takuji Mukaemachi , Shiro Enami
发明人： Takuji Mukaemachi , Shiro Enami
IPC分类号： H04Q3/545 , H04Q3/52 , H04Q3/54 , H04Q3/00
CPC分类号： H04Q3/54 , H04Q3/521
摘要： A plurality of cross-point matrices each having a plurality of holding circuits respectively associated with a corresponding cross point are arranged in multiple stages, which are linked with each other to form a multi-stage switching network. Each switch matrix is provided with an associated NAND gate connected to gates capable of being selectively impressed with the signals representing the state of the holding circuits in a row or column within the particular switch matrix. The output of the NAND gate is connected to an OR gate for each stage.
摘要翻译：分别具有分别与对应的交叉点相关联的多个保持电路的多个交叉点矩阵被布置成多个级，它们彼此链接以形成多级交换网络。每个开关矩阵设置有连接到门的相关联的NAND门，其能够选择性地将表示特定开关矩阵内的行或列中的保持电路的状态的信号加载。 NAND门的输出端连接到每一级的或门。

5. 发明授权

US4264895A Multi-stage switching network controlled by at least three logical inputs 失效
标题翻译：由至少三个逻辑输入控制的多级交换网络
公开(公告)号：US4264895A
公开(公告)日：1981-04-28
申请号：US16824
申请日：1979-03-02
申请人： Takuji Mukaemachi , Tetsuo Takeshita , Keiichi Shimizu , Ryoichi Himeno
发明人： Takuji Mukaemachi , Tetsuo Takeshita , Keiichi Shimizu , Ryoichi Himeno
IPC分类号： H04Q3/52 , H04Q9/00
CPC分类号： H04Q3/521
摘要： A multi-stage switching network comprises a plurality of unitary switch matrices each including a number of cross-point circuits each of which in turn includes a memory circuit operatively connected to the associated cross-point switches in a speech path. The plurality of the unitary switch matrices are arranged in a matrix array in which each stage of the multi-stage switching network is constituted by the unitary switch matrices arrayed in at least one column thereof and interconnected through links. The memory circuit for performing ON/OFF control of the associated cross-point switches in each of the switch matrices incorporates therein at least three logical control signal input terminals to which at least an information signal for designating the switch matrix to be selected and information signals for designating a row and a column in the selected switch matrix are applied, the latter information signals being produced in common to all the switch matrices, whereby a given cross-point determined by these information signals in the selected matrix is selected and correspondingly controlled. The ON/OFF control of the cross-point switch is effected sequentially by a stage selecting information signal from stage to stage.
摘要翻译：多级交换网络包括多个单位开关矩阵，每个开关矩阵包括多个交叉点电路，每个交叉点电路又包括可操作地连接到语音路径中的相关联的交叉点开关的存储器电路。多个单位开关矩阵被排列成矩阵阵列，其中多级交换网络的每一级由排列在其至少一列中的并通过链路互连的整体开关矩阵构成。用于对每个开关矩阵中的相关联的交叉点开关进行ON / OFF控制的存储电路在其中包括至少三个逻辑控制信号输入端，至少一个用于指定要选择的开关矩阵的信息信号和信息信号用于指定所选开关矩阵中的行和列，后一信息信号被共同产生到所有开关矩阵中，由此选择由所选择的矩阵中的这些信息信号确定的给定交叉点并对其进行控制。交叉点开关的ON / OFF控制由阶段选择信息信号顺序地进行。

6. 发明授权

US4076971A Subscriber line testing system 失效
标题翻译：用户线测试系统
公开(公告)号：US4076971A
公开(公告)日：1978-02-28
申请号：US721216
申请日：1976-09-08
申请人： Takuji Mukaemachi , Yutaka Fukushima
发明人： Takuji Mukaemachi , Yutaka Fukushima
IPC分类号： H04M3/30 , H04B3/46
CPC分类号： H04M3/30
摘要： A testing system for testing an impedance of a subscriber line by connecting a test circuit to the subscriber line through one of channels in a network including current self-holding semiconductor switching devices, wherein a series circuit of a second channel and a constant current source is connected in parallel with said first-mentioned channel whereby the current self-holding semiconductor switching devices in said first and second channels are kept conductive by said constant current source.
摘要翻译：一种用于通过网络中的一个通道将测试电路连接到用户线路的测试系统，包括电流自保持半导体开关器件，其中第二通道和恒流源的串联电路是与所述第一提及的通道并联连接，由此所述第一和第二通道中的电流自保持半导体开关器件由所述恒流源保持导通。

7. 发明授权

US4455645A Back-up control system implemented with a redundancy scheme for protection against failure 失效
标题翻译：采用冗余方案实现的备用控制系统，用于防止故障
公开(公告)号：US4455645A
公开(公告)日：1984-06-19
申请号：US286517
申请日：1981-07-24
申请人： Yoshiaki Mijioka , Kouichi Yamamoto , Taihei Suzuki , Takuji Mukaemachi
发明人： Yoshiaki Mijioka , Kouichi Yamamoto , Taihei Suzuki , Takuji Mukaemachi
IPC分类号： H04M3/22 , H04Q3/52 , H04Q3/545 , H04Q11/04 , H04J3/14
CPC分类号： H04Q11/04
摘要： A back-up control system of a redundancy configuration suited to be used for a time division switching network. The control system includes connecting paths extending from each of the load supply devices, the paths being classified into an active connecting path and a corresponding standby connecting path coupled to different ones of the load accommodating devices which are provided in a number equal to or larger than three. The total load accommodating capacity of the load accommodating devices is provided with a margin or excess capacity which is smaller than the capacity required for accommodating all full loads supplied from the load supply devices but is not smaller than the load accommodating capacity of any one of the load accommodating devices. At least one of the load accommodating devices is connected to the active connecting path and the spare connecting path which corresponds to another one than the just mentioned active connecting path. Control means is included for performing a switching operation in such a manner that, in a normal operation, the load is supplied from each of the load supply devices through the respective active connecting path to the load accommodating device to which the just mentioned load supply device is connected, while upon occurrence of failure in a given one of the load accommodating devices, the load supplied from the associated load supply device to the fault load accommodating device through the active connecting path is transferred to another one of the load accommodating devices which is connected to the associated load supply device through the standby connecting path corresponding to the above mentioned active connecting path, whereby the load corresponding to a load accommodating capacity of the fault load accommodating device is borne by the other load accommodating devices.
摘要翻译：一种适用于时分交换网络的冗余配置的后备控制系统。所述控制系统包括从每个所述负载供应装置延伸的连接路径，所述路径分为主动连接路径和耦合到不同的负载容纳装置的对应待机连接路径，所述不同的负载容纳装置以等于或大于三。负载容纳装置的总负载容纳容量设置有比容纳从负载供给装置供给的所有满载所需的容量小的余量或过剩容量，但不小于任何一个负载调节装置。负载容纳装置中的至少一个连接到主动连接路径和与刚才提及的主动连接路径相对应的备用连接路径。包括用于执行切换操作的控制装置，使得在正常操作中，负载通过相应的主动连接路径从每个负载供给装置提供给刚刚提及的负载供给装置的负载容纳装置在给定的一个负载容纳装置发生故障的同时，通过主动连接路径从相关联的负载供给装置提供给故障负载容纳装置的负载被传送到另一个负载容纳装置通过与上述主动连接路径相对应的备用连接路径连接到相关联的负载供应装置，由此与故障负载容纳装置的负载容纳能力相对应的负载由其他负载容纳装置承担。

8. 发明授权

US4663759A Ring back tone transmission system 失效
标题翻译：回铃音传输系统
公开(公告)号：US4663759A
公开(公告)日：1987-05-05
申请号：US726650
申请日：1985-04-24
申请人： Takuji Mukaemachi , Hirotoshi Shirasu , Taihei Suzuki
发明人： Takuji Mukaemachi , Hirotoshi Shirasu , Taihei Suzuki
IPC分类号： H04M19/02 , H04Q11/04 , H04J3/12
CPC分类号： H04Q11/04
摘要： In a digital and electronic switching apparatus, each subscriber's circuit is provided with a loop back circuit which selectively return a downward channel signal to an upward channel in order that a ring back tone informing a calling telephone set of the fact that a called telephone set is being dialed can be synchronized with a ringing tone dialing a called telephone set. Upon dialing a called subscriber, the loop back circuit is ON-OFF controlled in synchronism with the ON-OFF control of the ringing tone so that a tone signal generated from a common continuous ring back tone source can be transmitted to the loop back circuit and the calling telephone set via a speech path of a switching network.
摘要翻译：在数字和电子交换设备中，每个用户的电路设置有环回电路，其选择性地将向下的信道信号返回到向上信道，以便通知呼叫电话机的回铃音被叫电话机是拨打的电话可以与拨打一个被叫电话机的铃声同步。在拨打被叫用户时，环回电路与铃声的ON-OFF控制同步地被控制，使得从公共连续回铃音源产生的音调信号可以被发送到环回电路，通过交换网络的语音路径设置呼叫电话机。

9. 发明授权

US4113988A Speech path packaging unit including controller containing shift register 失效
标题翻译：语音路径包装单元，其中包含控制器的移位寄存器
公开(公告)号：US4113988A
公开(公告)日：1978-09-12
申请号：US775619
申请日：1977-03-08
申请人： Takuji Mukaemachi , Tetsuo Takeshita , Shiroh Enami
发明人： Takuji Mukaemachi , Tetsuo Takeshita , Shiroh Enami
IPC分类号： H04Q3/545 , H04Q3/52 , H04Q3/54
CPC分类号： H04Q3/521
摘要： A speech path apparatus in a space-division type electronic exchanger equipment wherein a plurality of switching networks each having controlled points and a plurality of trunks are divided into an appropriate number of packaging units, and a network controller and a trunk controller are provided for each packaging unit. Each of the network controllers and the trunk controllers includes a shift register for receiving a control signal sent from a central processing unit in serial form, a means for determining whether the received control signal is for its own unit and means for translating a control signal stored in the shift register to send it out in parallel form to the controlled point.

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