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61. 发明专利

JPS60260268A SUBSCRIBER CIRCUIT FEEDING SYSTEM 失效
公开(公告)号：JPS60260268A
公开(公告)日：1985-12-23
申请号：JP11604384
申请日：1984-06-06
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOSHINO HARUYUKI , DEGUCHI FUMIHIKO
IPC分类号： H04M19/00 , H04Q1/28
摘要： PURPOSE:To attain miniaturization of a subscriber circuit subject to low power consumption by providing a DC/AC converting means in common and providing an AC/DC means at each subscriber circuit. CONSTITUTION:A DC voltage of -48V from an exchange main power supply is inputted to a DC/AC converting circuit 5, and an AC voltage is generated in the secondary winding of a transformer T and fed to plural subscriber circuits 21 via a bus 6. The AC voltage is inputted to an AC/DC converting circuit 7 in each subscriber circuit 21, and after the voltage is rectified in full wave by a full wave rectifier RF, it is smoothed, converted into a DC voltage and fed to a talking current supply circuit 31 so as to apply the talking current to the subscriber lines L1, L2. Since the talking current supply DC voltage fed to the circuit 31 is set to apply the same talking current to the subscriber terminal equipment when the total value of the line resistor and the subscriber terminal of the subscriber lines L1, L2 is equal, the power consumed in the circuit 31 is almost halved.

62. 发明专利

JPS60260267A SUBSCRIBER CIRCUIT FEEDING SYSTEM 失效
公开(公告)号：JPS60260267A
公开(公告)日：1985-12-23
申请号：JP11604284
申请日：1984-06-06
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOSHINO HARUYUKI , HASHIMOTO KAZUHIKO , DEGUCHI FUMIHIKO
IPC分类号： H04M19/00
摘要： PURPOSE:To progess miniaturization and high integration by reducing remarkably power consumed in a subscriber circuit. CONSTITUTION:A voltage converting circuit 5 uses a DC voltage from an exchange main power supply 1 so as to generate a talking current supply DC voltage VP at first and a talking current supply circuit 30 supplies a talking current to subscriber lines L1, L2. A voltage measuring circuit 6 measures a line voltage Vs and the result is transmitted to a detection circuit 7 and a subscriber resistor circuit 10. The circuit 7 compares the line voltage Vs with a threshold voltage Vt from a threshold value generating circuit 8. When the subscriber terminal hooks off, a detection signal from the detection circuit 7 is transmitted so as to start a subscriber resistance calculating circuit 10, the subscriber resistor Rs is calculated based on the line voltage Vs and the result is inputted to a voltage converting table 11. The voltage converting circuit 5 changes the voltage Vp and the threshold voltage Vt set initially.

63. 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。

64. 发明专利

JPS60136463A CHANNEL TEST SYSTEM 失效
公开(公告)号：JPS60136463A
公开(公告)日：1985-07-19
申请号：JP24989183
申请日：1983-12-24
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOSHINO HARUYUKI , DEGUCHI FUMIHIKO
IPC分类号： H04M3/26
摘要： PURPOSE:To remove an access switch dedicated to a channel test from a subscriber circuit and to make the subscriber circuit small in size and economical by returning the detection results as to a DC loop circuit from a DC monitoring circuit to a testing device. CONSTITUTION:Return switches 113 and 114 are provided at connection points between a speech current supply circuit 11 and a two-wire/four-wire converting circuit 13 in the subscriber circuit 1'. Consequently, the normalcy of a return channel passed through the channel 31 in a digital switch network 3, digital encoding circuit 14 in the subscriber circuit 1', and two-wire/four-wire converting circuit 13 is confirmed without using the access switches, and the output of the DC monitoring circuit 12 is returned to the testing device 2' through a gate 15. Consequently, the normalcy of speech current supply functions of the speech current supply circuit 11 and DC monitoring circuit 12 and a monitoring function for DC loop circuit formation is confirmed.

65. 发明专利

JPS6076857A CHARGING FILTER 失效
公开(公告)号：JPS6076857A
公开(公告)日：1985-05-01
申请号：JP18554983
申请日：1983-10-04
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOSHINO HARUYUKI , SHINKAWA HIROSHI , MANO FUMIO , TATSUNO HIDEO
IPC分类号： H04M15/00
摘要： PURPOSE:To miniaturize both charging filter and subscriber circuit by providing an equivalent inductance consisting of a transistor circuit and a feeding circuit for the generation of a charging pulse to a public telephone set. CONSTITUTION:Equivalent inductance circuits 5' and 6' having a bidirectional property via diode bridges 9 and 10 are connected to the subscriber lines A and B of a public telephone set. A DC loop closing circuit 8 is set between the lines A and B, and a capacitor 7 is provided at the joint between the circuits 5' and 6' and a feeding part. Then control signals are supplied successively to terminals C1-C4 to actuate sink type feeding parts 31, 33, 41 and 43 as well as source type feeding parts 32, 34, 42 and 44 in the form of pairs. Thus a charging pulse is generated at the lines A and B, and the charging filter is formed with circuits 5' and 6'.

66. 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.

67. 发明专利

JPS58151166A TALKIE TRANSMISSION SYSTEM WITH REGULATED CALL 失效
公开(公告)号：JPS58151166A
公开(公告)日：1983-09-08
申请号：JP3335882
申请日：1982-03-03
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , HITACHI LTD
发明人： YOSHINO HARUYUKI , TAKEI AKIRA , NOZAKI HIROAKI , OONO MASAHIKO , KOUNO TETSUYA
IPC分类号： H04M3/50 , H04M3/22 , H04Q3/00 , H04Q3/72
摘要： PURPOSE:To attain the scanning of a subscriber line even in transmission of call regulating talkie, by connecting one of the subscriber lines to earth or a battery via the 2nd scanning resistor and the other of a subscriber line scanning circuit, in a subscriber circuit of a telephone exchange. CONSTITUTION:When a subscriber hooks off, a DC current loop is formed via a DC battery VBB, a talkie tone superimposing transformer T, and resistors R1, R2. A subscriber line scanning circuit LSCN recognizes the DC loop closing with the detection of change in the potential difference between the R1 and R2, and informs it to a control circuit CONT via a scanning output line 3. The CONT informs the closing to a controller via a device 7 in a prescribed timing. The controller gives next instruction to the CONT via a line 8. That is, contacts COA, B are opened with control lines 1, 2, a prescribed bus of a spatial split switch SDSW to connect a circuit block BSCH and an unimportant subscriber SUB. The subscriber monitor function is transferred from the LSCN to the BSCH.

68. 发明专利

JPS58150393A INITIALIZATION SYSTEM OF TIME DIVISION SWITCHBOARD 失效
公开(公告)号：JPS58150393A
公开(公告)日：1983-09-07
申请号：JP3240782
申请日：1982-03-03
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： IRIBE SHINICHI , AKIYAMA NOBUYOSHI , AKATA KAZUHIKO , SHIDA TOMOHIKO , YOSHINO HARUYUKI
IPC分类号： H04Q3/60 , H04Q11/04
摘要： PURPOSE:To simplify a program of initialization and to shorten the setting time of initialization, by using the same format for both the space division and time division types at the side of a central processor and adding a logical gate circuit into a control circuit. CONSTITUTION:The initialization signals for both space and time division type line concentrators are set to a common output register 10A in a central controller 10. Then the ON signal for a subscriber scanning circuit 3, the OFF signal for a space division line concentration switch network 4, the OFF signal and the ON signal are set to a part (a) of the register 10A, a part (b), a part (c) for a subscriber circuit 5, a part (d) for a subscriber circuit 8 respectively. Then logical gate circuits are provided to control circuits 6 and 9. The circuit 3, the network 4, the circuit 5 and the circuit 8 are controlled by the initialization signal for the start and stop of their operations.

69. 发明专利

JPS58107724A GATE TURN-OFF CIRCUIT 失效
公开(公告)号：JPS58107724A
公开(公告)日：1983-06-27
申请号：JP20736681
申请日：1981-12-22
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , HITACHI LTD , FUJITSU LTD
发明人： MUKAI KANJI , HOSHIZAKI TERUHIRO , INABE YASUNOBU , UEHARA HIROYASU , OKUHARA SHINJI , YOSHINO HARUYUKI
IPC分类号： H02M1/06 , H03K17/73 , H03K17/732
摘要： PURPOSE:To increase the off-control ability, without increasing an off-drive current, by connecting a diode in forward direction in series with a cathode of a PNPN switch. CONSTITUTION:A collector of a TR8 and an anode of a diode 7 are respectively connected to a cathode-gate and a cathode of a PNPN switch 6, and the emitter of the TR8 and the cathode of the diode 7 are connected. In turning off the PNPN switch 6 from conduction, a current flows to a base 9 of the TR8 to drive the TR8 to remove the current from the cathode-gate of the switch 6. In this case, a voltage between the collector and emitter of the TR8 can be taken larger by the forward voltage drop of the diode 7, allowing to prevent the saturation of the TR8.

70. 发明专利

JPS58106937A TRANSMITTING METHOD FOR CALL SIGNAL 失效
公开(公告)号：JPS58106937A
公开(公告)日：1983-06-25
申请号：JP20507481
申请日：1981-12-21
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： UEHARA HIROYASU , KATAOKA MUTSUO , INABE YASUNOBU , MUKAI KANJI , OKUHARA SHINJI , YOSHINO HARUYUKI
IPC分类号： H04M3/02 , H04M3/06
摘要： PURPOSE:To stabilize a call signal, by transmitting an earth signal after the transmission of a transmission signal is completed and the turn-off time of a semiconductor switch is elapsed when the call signal is transmitted in a subscriber's circuit of a telephone exchange. CONSTITUTION:In case that the call signal and the earth signal are transmitted alternately to a subscriber's line 2 through current self-holding semiconductor switches 11 and 12, conduction or non-conduction of p-n-p-n transistors TRs 11a, 11b, 12a, and 12b constituting semiconductor switches is detected by a detecting circuit 15 and is inputted as one control information to a controlling circuit 14. A control signal is transmitted to the first gate driving circuit 13a and the second gate driving circuit 13b through delay circuits 21 and 38, which give a delay longer than the turn-off time of semiconductor switches, to prevent the simultaneous operation of two semiconductor switches, and thus, switches are not broken down, and malfunctions are prevented.

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