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71. 发明专利

JPS5491109A SCANNING SYSTEM OF THYRISTORRTYPE CHANNEL SWITCH 失效
公开(公告)号：JPS5491109A
公开(公告)日：1979-07-19
申请号：JP16069677
申请日：1977-12-28
申请人： FUJITSU LTD
发明人： YOSHINO HARUYUKI , NAITOU WATARU , HASEGAWA KENZOU
IPC分类号： H04Q3/52
摘要： PURPOSE:To realize a scanning system of a thyristor channel switch which absorbs on-state resistance deviation, by switching successively only one constant-current power supply path in a row direction to form always a constant-current value path. CONSTITUTION:Constant-current controller 7 and constant-current switch 8 supply the DC bias to a channel. Constant-current switch 8 is controlled by counter 9, decoder 10 and timing circuit 11 and switches only one path for the selectrd constant current in the row direction. Then, register 6 accumulates matrix information from the control system, by which it is decided whether the row should be selected or not, as a decode, and selection gate 5 operates AND between register 6 and decoder 10 to transmit successively the same information to plural outputs at the output timing of decoder 10, thereby absorbing the on-state resistance deviation of a thyristor.

72. 发明专利

JPS63194526A SURGE PROTECTIVE CIRCUIT 失效
公开(公告)号：JPS63194526A
公开(公告)日：1988-08-11
申请号：JP2570387
申请日：1987-02-06
申请人： FUJITSU LTD
发明人： YAMAGUCHI SUKETSUGU , SAKAGAMI SHOICHI , KAJITA YOSHIHARU , YOSHINO HARUYUKI
IPC分类号： H02H9/04

73. 发明专利

JPS6361541A TERMINATION SYSTEM 失效
公开(公告)号：JPS6361541A
公开(公告)日：1988-03-17
申请号：JP20537286
申请日：1986-09-01
申请人： FUJITSU LTD
发明人： SAWANO KAZUHIKO , YOSHINO HARUYUKI , SHINKAWA HIROSHI
IPC分类号： H04M3/02
摘要： PURPOSE:To reduce the voltage of a call signal by inverting the polarity of the DC voltage of a subscriber's line to which a call comes by an automatic exchange and sending an in-band signal of low voltage from the automatic exchange to the subscriber's line when a telephone terminal equipment forms a loop circuit of high resistance. CONSTITUTION:A telephone terminal equipment 3 is provided with a polarity inversion detecting means 31 which detects polarity inversion of the DC voltage applied to a subscriber's line 1 by an automatic exchange 2, a means which forms a loop circuit 32 of high resistance between subscriber's lines when polarity inversion is detected, and a means 33 which receives the in-band signal of low voltage sent from the exchange 2 to indicate the incoming to a subscriber, and the exchange 2 is provided with a polarity inverting means 21 which inverts the polarity of the DC voltage applied to the subscriber's line 1 to which the call comes, a detecting means 22 which detects that the loop circuit 32 of high resistance is formed in the equipment 3, and a means 23 which sends the in-band signal of low voltage to the subscriber's line 1 when the detecting means 22 detects forming of the circuit 32. Since the exchange does not send a high voltage signal like a conventional call signal, it is unnecessary to consider a call signal sending route so that the route can endure a high voltage.

74. 发明专利

JPS60214187A Codec control system 失效
标题翻译：编解码器控制系统
公开(公告)号：JPS60214187A
公开(公告)日：1985-10-26
申请号：JP7038584
申请日：1984-04-09
申请人： Fujitsu Ltd
发明人： SHINKAWA HIROSHI , YOSHINO HARUYUKI
IPC分类号： H04Q1/20 , H04Q3/42
CPC分类号： H04Q3/42
摘要： PURPOSE:To prevent malfunction from being caused when an output voltage of a decoder reaches in error a negative DC maximum level by inactivating only the decoder after the reception of the 1st selection numeral and bringing again the decoder into the operating state after all numerals are received. CONSTITUTION:When an SCN signal comes to a 2W line, a feeding/supervisory circuit SCN detects it so as to activate relays RL1, RL2. A power supply E of the coder COD is applied with closing of a contact rl1, the power supply E of the decoder DEC is applied through the closing of a contact rl2 so as to bring the both into the operating state, a dial tone DT is transmitted to a caller and the system enters the reception state of the 1st selecting numeral. When the reception of the 1st selecting numeral is detected by the circuit SCN, its control circuit CONT restores only the relay RL2, the contact rl2 is opened, the decoder DEC is brought into the inoperating state and when the circuit SCN detects the reception of all figures, the relay RL2 is activated again so as to close the contact rl2 thereby bringing the decoder DEC into the operating state.
摘要翻译：目的：为了防止当解码器的输出电压达到错误的负直流最大电平时，在接收到第一选择数字后仅使解码器失效并且在接收到所有数字之后再次使解码器进入操作状态而引起故障。。构成：当SCN信号达到2W线路时，馈线/监控电路SCN检测它，以激活继电器RL1，RL2。编码器COD的电源E被施加到触点rl1的闭合，解码器DEC的电源E通过关闭触点rl2来施加，以使两者进入操作状态，拨号音DT 发送到呼叫者，并且系统进入第一选择数字的接收状态。当通过电路SCN检测到第一选择数字的接收时，其控制电路CONT仅恢复中继器RL2，触点rl2断开，解码器DEC进入不工作状态，并且当电路SCN检测到全部接收继续RL2再次被激活，以便关闭触点rl2，从而使解码器DEC进入操作状态。

75. 发明专利

JPS609291A SYSTEM FOR MOUNTING DIGITAL DATA TRANSMITTING AND RECEIVING CIRCUIT TO ANALOG VOICE SUBSCRIBER'S CIRCUIT 失效
公开(公告)号：JPS609291A
公开(公告)日：1985-01-18
申请号：JP11773083
申请日：1983-06-28
申请人： FUJITSU LTD
发明人： YOSHINO HARUYUKI
IPC分类号： H04M11/00 , H04M11/06 , H04Q1/02 , H04Q3/42
摘要： PURPOSE:To make an analog/digital mixing subscriber's circuit unnecessary, and to increase easily a TV telephone, a facsimile, etc., by providing a digital data transmitting and receiving circuit on a pair of subscriber's lines of an existing analog voice subscriber's circuit. CONSTITUTION:A pair of subscriber's lines 2, 3 are connected to an existing analog voice subscriber's circuit 1, and the voice is operated by the DC voltage of the lines 2, 3 and used for telephone service. A digital data transmitting and receiving circuit 4 is connected to these lines 2, 3, and the transformer 7 of this circuit 4 is connected to the lines 2, 3 through capacitors 5, 6, by which the operation by DC voltage of the circuit 4 is prevented. When connecting this circuit 4 to the lines 2, 3, they are connected by using a socket connector 9 connected to a printed board 8, and a plug connector 10 connected to an existing cable 11 and an increasing cable 12. In this way, the increase work of the circuit 4 is simplified, and the service of a TV telephone, a facsimile, etc. can be executed.

76. 发明专利

JPS59161196A Subscriber's terminal supervising system 失效
标题翻译：订户终端监督系统
公开(公告)号：JPS59161196A
公开(公告)日：1984-09-11
申请号：JP3541783
申请日：1983-03-04
申请人： Fujitsu Ltd , Nippon Telegr & Teleph Corp
发明人： YOSHINO HARUYUKI , KOINUMA TAKEO
IPC分类号： H04Q3/42 , H04M3/22
CPC分类号： H04M3/2272
摘要： PURPOSE:To use only one supervising circuit and a loop forming resistance with respect to plural terminal equipment by converting the digital information from the control device of a switchboard to a voltage value, and generating a desired detecting threshold. CONSTITUTION:A titled system is provided with a circuit 1 for supplying a DC current to a subscriber terminal equipment 11 connected in parallel to a telephone set 15, a supervising circuit 5 for discriminating the state of the telephone set 15 and the equipment 11 by the variation quantity of the DC current, a communication circuit 3 to the telephone set 15 and the equipment 11, and a D/A converter 16 for generating a detecting threshold of the supervising circuit 5 basing on the terminal classifying digital information sent out of the control device of a switchboard. In this state, in accordance with the instruction of the control device, a detecting threshold corresponding to a classification of a terminal is generated by the digital information and the converter 16, and by this detecting threshold, a state of the telephone set 15 and the equipment 11 is discriminated.
摘要翻译：目的：通过将来自配电板的控制装置的数字信息转换为电压值，并且产生期望的检测阈值，相对于多个终端设备仅使用一个监控电路和环路形成电阻。构成：标题系统具有用于向与电话机15并联连接的用户终端设备11提供DC电流的电路1，用于通过电话机15识别电话机15和设备11的状态的监视电路5 直流电流的变化量，到电话机15的通信电路3和设备11，以及用于根据从控制发出的数字信息分类的终端产生监控电路5的检测阈值的D / A转换器16 交换机的设备在该状态下，根据控制装置的指示，通过数字信息和转换器16产生与终端的分类对应的检测阈值，通过该检测阈值，电话机15的状态和设备11被鉴别。

77. 发明专利

JPS59161162A Ringing trip interface system 失效
标题翻译：环形跳闸界面系统
公开(公告)号：JPS59161162A
公开(公告)日：1984-09-11
申请号：JP3541883
申请日：1983-03-04
申请人： Fujitsu Ltd , Nippon Telegr & Teleph Corp
发明人： SHINKAWA HIROSHI , YOSHINO HARUYUKI , HAGISHIMA KOUICHI , HAMASATO KAZUO
IPC分类号： H04M3/06 , H04M19/02
CPC分类号： H04M19/026
摘要： PURPOSE:To prevent a malfunction by attenuating an input of an AC signal eliminating filter immediately before switching a call signal to a silent use from a bell ringing use, and dropping an amplitude of an unnecessary vibration waveform generated in an output of the filter. CONSTITUTION:A titled system is provided with a switch for switching an AC signal and a DC signal which becomes silent, basing on control data 20, 21 sent out of a control device, and sending out a call signal to a telephone set, a circuit for converting a call signal current to voltage, a filter SCF 28 for eliminating an AC signal contained in its converting output, a circuit 29 for comparing said filter output with a constant reference voltage, a circuit 27 for attenuating the input voltage of the SCF28, and a controlling circuit 31 for operating the attenuating circuit 27 for a prescribed time. In this state, when the data 20 and 21 instructs switching to a DC signal from an AC signal, the attenuating circuit 27 is operated by a control signal, and the input of the SCF 28 is attenuated.
摘要翻译：目的：通过在将呼叫信号切换成来自振铃使用的静音使用之前将AC信号消除滤波器的输入衰减，并且降低在滤波器的输出中产生的不必要的振动波形的振幅来防止故障。规定：标题系统具有用于切换交流信号和直流信号的开关，所述交流信号和直流信号变得无声，基于从控制装置发出的控制数据20,21，以及向电话机发送呼叫信号，电路用于将呼叫信号电流转换为电压，用于消除其转换输出中包含的AC信号的滤波器SCF 28，用于将所述滤波器输出与恒定参考电压进行比较的电路29，用于衰减SCF28的输入电压的电路27，以及用于在规定时间内操作衰减电路27的控制电路31。在这种状态下，当数据20和21指示从AC信号切换到DC信号时，衰减电路27由控制信号操作，并且SCF 28的输入被衰减。

78. 发明专利

JPS55130286A CHANNEL SWITCH 失效
公开(公告)号：JPS55130286A
公开(公告)日：1980-10-08
申请号：JP3791379
申请日：1979-03-30
申请人： FUJITSU LTD
发明人： YOSHINO HARUYUKI , GOTOU SHINJI , NAITOU WATARU
IPC分类号： H03K17/693 , H04Q3/52
摘要： PURPOSE:To realize a switch featuring a high degree of integration and a wide range by using the field effect transistor for the channel switch. CONSTITUTION:Capacitor 2 is provided between the gate and the source of field effect transistor 1. And with application of the pulse to 1st circuit 3, the charging is given to capacitor 2. As a result, the gate voltage increases to make transistor 1 conduct. Under these conditions, transistor 1 maintains the conducting state of good linearity. With application of pulse to 2nd circuit 4, capacitor 2 discharges to make transistor 1 nonconductive. Furthermore, transistor 1 is combined to the isolation diode to produce the matrix-type crosspoint. Thus the charge and discharge of the capacitor is controlled to secure a channel switch for the electronic exchange or the like.

79. 发明专利

JPS544561A MATRIX CIRCUIT 失效
公开(公告)号：JPS544561A
公开(公告)日：1979-01-13
申请号：JP6969477
申请日：1977-06-13
申请人： FUJITSU LTD
发明人： TAKANO SHIGERU , GOTOU SHINJI , YOSHINO HARUYUKI , UMEMIYA TSUGIO
IPC分类号： G06F3/02 , H03K17/00 , H03K17/62
摘要： PURPOSE:To make it possible to use a simple driver in a matrix circuit by connecting current supply terminal for flowing a current to respective conductors to a constant current supply in parallel and by limiting a current flowing to each conductor to a constant value.

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