专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPH0420126A PSEUDO COMMUNICATION CIRCUIT NETWORK 失效
公开(公告)号：JPH0420126A
公开(公告)日：1992-01-23
申请号：JP12498090
申请日：1990-05-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KUWABARA NOBUO , AMAMIYA FUJIO
IPC分类号： H04B3/46
摘要： PURPOSE:To correctly measure a communication terminal disturbing wave voltage of a communication equipment having terminals for 4 communication lines or over by employing a current probe so as to measure a current flowing between a core wire and ground and obtaining a disturbing wave voltage from the current. CONSTITUTION:A series circuit comprising a capacitor C1 and an impedance element Z1 is connected between ground 17 and core wire connecting a communication line terminal and a communication line 15, a common mode choke coil 23 having almost no less with respect to a normal mode current by having a large loss with respect to common mode current is inserted between the series circuit and the communication line 15, and a current probe 25 measuring a disturbing wave corresponding to a disturbing wave voltage is inserted between the communication line terminal and the series circuit. Thus, the disturbing wave voltage of the communication line terminal is obtained by the measured value of the common mode current flowing to the circuit between the communication line 15 and ground 17. Thus, a communication line terminal disturbing wave voltage for a communication equipment having terminals for 4 communication lines or over is measured correctly.

22. 发明专利

JPH03220465A MEASURING DEVICE OF DISTRIBUTION OF ELECTRIC FIELD GENERATED IN ELECTROSTATIC DISCHARGE 失效
公开(公告)号：JPH03220465A
公开(公告)日：1991-09-27
申请号：JP1369290
申请日：1990-01-25
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MASUGI MASAO , MURAKAWA KAZUO , KUWABARA NOBUO , AMAMIYA FUJIO
IPC分类号： G01R29/14 , G01R29/08
摘要： PURPOSE:To measure the temporal and spatial distributions of an electric field generated in an electrostatic discharge automatically by transmitting a signal to be generated from an electric field sensor to processor using an optical fiber. CONSTITUTION:First, an electromagnetic wave radiated from an electromagnetic generation sensor 7 propagates through a space and is received with an electric field sensor 1 arranged cubically. As a sensing level preset is exceeded, the sensor 1 generates a light signal, which is sent to a processor 3 with an optical fiber 2 to be processed. With the device 3, the light signal transmitted through the optical fiber 2 is converted into an electrical signal with a photoelectric converter 15. Then, signals sent to a plurality of the converters 15 are sent to a CPU 17 through a scanner 16. Here, the CPU 17 receives time information from a clock 18 to be stored into a memory 18 together with a number and level of the sensor. The results are outputted to a printer 19, a CRT 20 and a plotter 21.

23. 发明专利

JPS6389941A MONITOR AND CONTROL EQUIPMENT FOR MICROPROCESSOR APPLIED EQUIPMENT 失效
公开(公告)号：JPS6389941A
公开(公告)日：1988-04-20
申请号：JP23430186
申请日：1986-10-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOKIKUNI KENTARO , AMAMIYA FUJIO
IPC分类号： G06F1/30 , G06F1/00 , G06F1/24 , G06F11/14 , G06F11/30
摘要： PURPOSE:To perform simultaneous control for initialization, an urgent processing, and restart-up, by using the interruption input terminal of a CPU commonly for a power source abnormal disconnection signal and a stop detection monitoring timing signal, and the reset input terminal for initialization signals at the times of applying a power source and detecting the stop of the power source. CONSTITUTION:The CPU (a), when accepting an interruption signal E at the interruption input terminal (d), refers the power source abnormal disconnection signal C supplied from a power source abnormal disconnection signal supplying circuit (h) as an interruption processing. And when the signal C is set in an ON state, a prescribed urgent processing is executed. Also, when it is set in an OFF state, a stop detection reset signal F is outputted to a stop detection circuit (c). Also, when the initialization signal B from a first OR circuit (k) being inputted to the rest input terminal (e) of the CPU (a), is turned ON, a stop detection holding signal H being inputted from a state holding circuit (i) is referred. When the signal H is set at the On state, the output of the reset signal is outputted to the stop detecting circuit (c), and also, a signal J to cut off a power source circuit (f) is outputted, and when it is set in the OFF state, a regular operation is started.

24. 发明专利

JPS61288541A CALL SYSTEM FOR DIGITAL TELEPHONE SET 失效
公开(公告)号：JPS61288541A
公开(公告)日：1986-12-18
申请号：JP12829485
申请日：1985-06-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： AMAMIYA FUJIO , MATSUMOTO KOICHI , SHIMOHARA KATSUNORI
IPC分类号： H04M1/00 , H04M1/57
摘要： PURPOSE:To recognize where a call comes from immediately by collating whether or not a full digit or a part of a caller number sent under the control of a signal control circuit is stored in a memory and selecting at least either a call tone volume or a call tone color and sending the result when stored. CONSTITUTION:A signal control circuit 5 decodes a telephone number from a caller number signal, compares it with a telephone number registered in advance in a memory 6 and it is found that the numbers are the same designation information as to call tone volume or color registered in the memory 6 in advance in combination with the said telephone number is read and a signal designation the call tone volume and tone color is sent respectively to a call tone volume switching circuit 15 and a call tone color switching circuit 16. The telephone number signal of the decoded caller is sent to a display drive circuit 9. The call signal is decoded and a control signal to operate a call circuit 17 is sent. Thus, the call circuit 17 generates a call tone set by the circuits 15,16 and a call tone is generated from a sounder 18.

25. 发明专利

JPS5983443A DIGITAL TELEPHONE SET 失效
公开(公告)号：JPS5983443A
公开(公告)日：1984-05-14
申请号：JP19314482
申请日：1982-11-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： AMAMIYA FUJIO , OOGOSHI MASAE , MATSUMOTO KOUICHI , KAWASHIMA ISAO
IPC分类号： H04M1/50 , H04M1/26 , H04M1/515
摘要： PURPOSE:To transmit two frequency signals on a voice channel at the dial operation, by providing a circuit generating the two frequency signals corresponding to a selecting signal in response to the dial operation in addition to a circuit generating a digital selecting signal. CONSTITUTION:In depressing a push button dial 12 at transmission, a signal control section 6 generates the digital selecting signal corresponding to the depressed dial number, it is given to a line terminating section 4 and transmitted to an exchange via a transmission terminal section 3 and a signal channel. The two frequency signals corresponding to the dial number is generated by a two-frequency signal generating circuit 15 at the same time and a changeover switch 7 is switched by the control at the signal control section 6. The output of the generating circuit 15 is given to a CODEC5 in place of the transmitted voice signal from a talking circuit 8, inserted on the voice channel at the line terminating section 4 and transmitted to a converter via the transmission terminating section 3.

26. 发明专利

JPS58131859A DIGITAL TELEPHONE SET CIRCUIT 失效
公开(公告)号：JPS58131859A
公开(公告)日：1983-08-05
申请号：JP1468882
申请日：1982-02-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MATSUMOTO KOUICHI , AMAMIYA FUJIO , MATSUO NAOKI , NUNOKAWA RIYOUZOU
IPC分类号： H04M1/00 , H04M1/253 , H04M19/08
摘要： PURPOSE:To make the power consumption at incoming call and howler state equal to that at communication and calling state, by stopping power supply to a CODEC and a call circuit at incoming call and howler state, and supplying a part of the power to a calling circuit, in a digital telephone set. CONSTITUTION:A monitor circuit 24 activates the power supply of power supply communication circuits 21, 23 other than the calling and howler state, stops the power supply to a power supply control circuit 22, a communication circuit 12 and a CODEC 10 are activated and a call circuit 11 is stopped. Since a calling signal is transmitted with the presence of an incoming call, this is interpreted at a signal control section 9, an instruction is given to the monitor circuit 24 and the circuit 11 to invert the operation of the control circuits 21 23. Thus, a call tone rings in the circuit 11 according to a tone indication signal from the circuit 9. When a called party responds, an off-hook signal is given from the circuit 9 to the circuit 24, resulting that the control circuit 21 23 are restored to the original state. If on-hooking is not done after the call, the power supply control for howler detection is done.

27. 发明专利

JPS5879367A NETWORK CONTROLLER 失效
公开(公告)号：JPS5879367A
公开(公告)日：1983-05-13
申请号：JP17765781
申请日：1981-11-04
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： OOTANI TSUTOMU , SHIBATA RIYUUICHI , AMAMIYA FUJIO , MATSUO NAOKI
IPC分类号： H04M11/00 , H04M11/06
摘要： PURPOSE:To eliminate the need for the discrimination of the polarity of lines at the installation of the titled device, by monitoring a call signal for a prescribed time, if the inversion of the polarity of lines is detected at automatic dial call. CONSTITUTION:When an automatic call start is done with an automatic dial start section 1, an automatic dial control section 2 drives a line switching relay 3 and activates a polarity inversion detection section 11. In detecting the inversion of polarity, a drive relay of a call signal detection section 15 is operated, a call signal detection control timer 17 is operated, and the call signal is monitored for a prescribed time. When the section 2 discriminates the detection of the call signal, relay contacts 3', 3'' of the relay 3 are contacted, a relay contact 16' of a call signal detection drive relay 16 is opened to connect lines 7, 8 to an additional terminal 9. Then, the automatic dialing is inhibiting at the same time.

28. 发明专利

JPS585067A CALLING CIRCUIT OF DIGITAL TELEPHONE SET 失效
公开(公告)号：JPS585067A
公开(公告)日：1983-01-12
申请号：JP10129481
申请日：1981-07-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NUNOKAWA RIYOUZOU , MATSUO NAOKI , AMAMIYA FUJIO , SHIBATA RIYUUICHI
IPC分类号： H04M1/00 , H04M1/253 , H04M1/26 , H04M19/02 , H04M19/04
摘要： PURPOSE:To eliminate the need to use an AC signal with large amplitude when a handset is put off the hook for a telephone call, by using one tone generator provided in the telephone set in common, and generating a ringing tone and a dial confirmation tone. CONSTITUTION:A call code, when sent from a switchboard during calling, is inputted to a signal decoder 5 thrugh a digital telephone set circuit 3, and a logical circuit 12 alternates outputs of oscillators 6 and 7 at the frequency of an oscillator 8 to send a signal, which is put in a ringing state for one second and in a half state for two seconds by an oscillator 9, out of a sounding body 17. When the receiver is lifted, a howler code is sent from the switchboard, so it is decoded by the signal decoder 5 to make the soundig body 17 sound continuously. During dialing, push buttons 10 are pressed to send dial characters from a dial character generation part 11 to a telephone circuit 3, and at the same time, the outputs of the oscillators 6 and 7 are outputted as dial confirmation tones to the receiver 15.

29. 发明专利

JPS57207471A POWER SUPPLY SYSTEM FOR TELEPHONE SET 失效
公开(公告)号：JPS57207471A
公开(公告)日：1982-12-20
申请号：JP9235881
申请日：1981-06-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： AMAMIYA FUJIO , MATSUO NAOKI , MATSUMOTO KOUICHI
IPC分类号： H04M19/00
摘要： PURPOSE:To lower power for telephone input and total power consumption per subscriber, by adjusting a DC resistance of a telephone set in response to the resistance of the subscriber line. CONSTITUTION:When a hook switch 4 is closed with off-hook and a DC loop bewteen an exchanger and a telephone set is formed, a call current determined with a voltage of a constant voltage supply 1, resistors 2 and 3, a variable resistor 6, a resistor 8 and a DC resistor of a telephone set power supply circuit 9 flows to a subscriber line. A control circuit 11 compares a terminal voltage of the resistor 8 with a reference voltage of a reference voltage generating circuit 10 and a trigger signal is outputted when both the voltages are not equal. Further, a circuit operates with a trigger signal from the circuit 11 so that a switch 7 in a variable resistor circuit selects a plurality of resistors, and when a terminal voltage of the resistor 8 is equal to a reference voltage, the circuit 11 stops the transmission of a trigger signal and the switch 7 stops selection for steady state.

30. 发明专利

JPS5637761A CONNECTION SYSTEM FOR DIGITAL TELEPHONE SET 失效
公开(公告)号：JPS5637761A
公开(公告)日：1981-04-11
申请号：JP11378579
申请日：1979-09-05
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： TOMIMORI AKINOBU , AMAMIYA FUJIO
IPC分类号： H04Q3/58 , H04B14/04 , H04M9/02
摘要： PURPOSE:To realize a simultaneous talking for the branch-connected telephones, by providing the sending speech control means through which a telephone selects the encoding means in case a mixture is given among the transmission analog signals of plural numbers of telephones and a competition is given to the actions of the hook switches FS. CONSTITUTION:A mutual connection is given between the sending speech parallel connection terminal 30 of the transmitter microphone 1 and the digital subscriber line 8 for two digital telephones A and B each. At the same time, the output terminal 37 of the transmission control circuit 33 of B is connected to the input terminal 35 of the circuit 33 of A, and the terminal 37 of A is connected to the terminal 35 of B to secure a branch connection. In case a competition is given to the actions of the FS9 between the telephones A and B, the encoder 2 is connected to the multiplexer MPX5 via the gates 40 and 41 and by the action of the FS which actuated first. And at the same time, the line 8 is caught via the line interface INF7. Other telephones catch the line 8 by the function of the FS, and the gate 41 is closed. Thus no output of the encoder 2 is delivered to the line 8. Accordingly, no coexistence is secured on the line 8 for the digital signals supplied from plural numbers of telephones, thus realizing a simultaneous talking for the digital telephones.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式