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1. 发明专利

JPS58205360A Method of producing voltage signal with large dynamic range and dc component 失效
标题翻译：生产具有大动力范围和直流分量的电压信号的方法
公开(公告)号：JPS58205360A
公开(公告)日：1983-11-30
申请号：JP7944583
申请日：1983-05-09
申请人： Northern Telecom Ltd
发明人： JIYON DAIAA MAKUHARII , BURAIAN JIYOSEFU PORAADO
IPC分类号： H04M3/02 , H04M19/02
CPC分类号： H04M19/023

2. 发明专利

JP3736784B2 Receiver and signal transmission system 有权
公开(公告)号：JP3736784B2
公开(公告)日：2006-01-18
申请号：JP31445499
申请日：1999-11-04
申请人：松下電器産業株式会社
发明人：寛行山内
IPC分类号： H04L25/02 , H04B3/00 , H04L25/49
CPC分类号： H04M19/023 , H04L25/0272 , H04L25/0282 , H04L25/0294 , H04L25/0298

3. 发明专利

JPS59501811A JPS59501811A - 失效
标题翻译：空值
公开(公告)号：JPS59501811A
公开(公告)日：1984-10-25
申请号：JP50311483
申请日：1983-09-07
IPC分类号： H04M3/30 , H03F3/393 , H04B3/23 , H04M1/03 , H04M1/26 , H04M3/06 , H04M9/10 , H04M19/00 , H04M19/02 , H04Q3/42 , H04Q3/72 , H04Q11/04
CPC分类号： H04M19/023 , H04M19/008 , H04Q11/04

4. 发明专利

JPS6110352A Subscriber line interface circuit 失效
标题翻译：订户线接口电路
公开(公告)号：JPS6110352A
公开(公告)日：1986-01-17
申请号：JP12997884
申请日：1984-06-26
申请人： Fujitsu Ltd
发明人： FUNAKI TETSUJI , KOIKE JIYUNICHI , WARABINE KAZUYUKI , IITAKA EIJI , HIBINO OSAMU
IPC分类号： H04M3/06 , H04M19/02
CPC分类号： H04M19/023
摘要： PURPOSE:To miniaturize a call signal transmission circuit by using a switching regulator for a call signal transmission circuit to generate a low frequency call signal in 16Hz without using a low frequency transformer. CONSTITUTION:The call signal generator circuit CRG consists of a high frequency transformer HFT, a switching circuit SWC, a rectifier circuit REF and a counter CNT. A ring-on signal RG from a sub-controller and a switching regulator high frequency signal from the counter CNT are inputted to the switching circuit SWC. The switching circuit SWC ANDs the signals, drives a transistor (TR) and its output is fed to the primary winding of the high frequency transformer HFT. Thus, a signal boosted to 75V, 16Hz required for the ringing of a bell is obtained at the secondary winding of the transformer from a voltage 24V at the primary winding and the boosted signal is rectified by the rectifier circuit REF and a continuous ringer signal tone is obtained.
摘要翻译：目的：通过使用呼叫信号传输电路的开关稳压器，在不使用低频变压器的情况下，以16Hz生成低频呼叫信号，来使呼叫信号传输电路小型化。构成：呼叫信号发生器电路CRG包括高频变压器HFT，开关电路SWC，整流电路REF和反向CNT。来自子控制器的接通信号RG和来自计数器CNT的开关调节器高频信号被输入到开关电路SWC。开关电路SWC对信号进行驱动，驱动晶体管（TR），其输出被馈送到高频变压器HFT的初级绕组。因此，在变压器的次级绕组从初级绕组的电压24V获得提升到75V，16Hz所需的信号，并且升压信号由整流电路REF和连续的振铃信号音获得。

5. 发明专利

JPS5732168A No-ringing network controller 失效
标题翻译：无环网控制器
公开(公告)号：JPS5732168A
公开(公告)日：1982-02-20
申请号：JP10729980
申请日：1980-08-05
申请人： Nec Corp , Nippon Telegr & Teleph Corp
发明人： SHIRAI KAZUHIKO , YOSHIHARA RIYOUJI , KANAI KAZUO
IPC分类号： H04M11/06 , H04M11/00 , H04M19/02 , H04M19/06 , H04M19/08
CPC分类号： H04M19/023
摘要： PURPOSE:To prevent the ringing phenomenon of a telephone set occurring when a calling power source is used as an operating power source, by rounding sudden variations of a current by inserting an integral network into a signal input part for control over a data transmitting network which uses general subscriber lines. CONSTITUTION:When a line voltage discriminating circuit 12 connected to general subscriber line discriminates a telephone line being held at a prescribed voltage with prescribed polarity, a switch 14 is controlled to supply electric power from a power source 13 to a receiving circuit 15. The terminal 31 of the switch 14 is connected to the power source 13, the terminal 41 to the line voltage discriminating cicuit, and the terminal 61 to the power termnal of the receiving circuit 15; and a resistance R1 and a capacitor C1 are inserted as an integral network into a signal input part at the terminal 41, and the rise and fall of a signal are rounded with a time constant based upon the resistance R1 and capacitor C1, thereby limiting a current for receiving circuit supplied from the terminal 31.
摘要翻译：目的：为了防止当主叫电源被用作工作电源时发生的电话机的振铃现象，通过将整体网络插入信号输入部分来对电流的突然变化进行舍入，以控制数据传输网络，使用一般用户线路。构成：当连接到一般用户线路的线路电压鉴别电路12鉴别以规定的极性保持在规定电压的电话线时，控制开关14将电力从电源13提供给接收电路15.终端开关14的端子31连接到电源13，端子41连接到线路电压鉴别电路，端子61连接到接收电路15的电源端; 并且电阻R1和电容器C1作为整体网络插入到端子41处的信号输入部分中，并且基于电阻R1和电容器C1以时间常数舍入信号的上升和下降，从而限制从端子31供给的接收电路的电流。

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