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1. 发明专利

JPH0388553A CONFERENCE DEVICE 失效
公开(公告)号：JPH0388553A
公开(公告)日：1991-04-12
申请号：JP22311289
申请日：1989-08-31
申请人： NIPPON TELEGRAPH & TELEPHONE , TOMEI TSUSHIN KOGYO KK
发明人： TAKAGI YUKIMASA , IHI NORIOMI , TATE KAZUYUKI , UESHIMA NOBUHIRO , INAGAKI TETSUHIRO
IPC分类号： H04M3/56
摘要： PURPOSE:To execute the three-person communication service by establishing a communication circuit between a telephone set and a terminal irrespective of an outgoing and an incoming, and switching this communication circuit to a circuit of the other telephone set and the terminal. CONSTITUTION:After confirming a dial tone by a telephone set TEL1, an outgoing and an incoming are connected to a terminal EP1. Subsequently, an incoming is called through an electric communication equipment EE2 from a terminal EP2, and when a telephone circuit between the telephone set TEL1 and the terminal EP1 is connected, when a telephone circuit between switches is connected so that the terminal EP1 is connected to a telephone set TEL2, a switch SW1 is operated so that the terminal EP1 is connected to the telephone set TEL2. When an incoming display is executed by an incoming detection display part RING, a switch SWA is operated so that the telephone set TEL1 is connected to the electric communication equipment EE2 side. By said operation, telephone circuits between the telephone set TEL2 and the terminals EP1, EP2 are connected, and a three-person conference is executed.

2. 发明专利

JPH04133555A MULTI-SPOT SIMULTANEOUS BROADCAST SYSTEM 失效
公开(公告)号：JPH04133555A
公开(公告)日：1992-05-07
申请号：JP25410490
申请日：1990-09-26
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , IHI NORIOMI , NISHIMURA YASUHIKO
IPC分类号： H04M3/42
摘要： PURPOSE:To obtain an economical simultaneous broadcast system by combining terminal equipment, such as word processors connected to telephone lines and equipped with communication functions, a dummy communication network set at a center, and simultaneous broadcast equipment and simultaneously transmitting a document file to multiple addresses. CONSTITUTION:Terminal equipment 11 for call originating mode and another terminal equipment 12 for incoming call mode are provided in a center facility 1. Communication is started (a call is originated) from the equipment 11 and the link with the equipment 12 is established. All terminal equipment (2-1)-(2-n) on terminal sides (at addresses of simultaneous broadcast) are set to the incoming call mode. When the terminal equipment 2 set to the incoming call mode on one terminal side receives a voice-band signal sent from the equipment 11 in the center 1, a link setting signal is sent to the center 1 side from the equipment 2, but the signal does not reach the equipment 11 and 12. However, the terminal equipment 2 set to the incoming call mode on the terminal side starts an ordinary communication mode as if the link has been established against the terminal 11 of the call originating mode in the center facility 11.

3. 发明专利

JPH0256124A SIGNAL BRANCH DEVICE FOR COMMUNICATION LINE 失效
公开(公告)号：JPH0256124A
公开(公告)日：1990-02-26
申请号：JP20785688
申请日：1988-08-22
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , TATE KAZUYUKI , IHI NORIOMI
IPC分类号： H04B3/03 , H04B17/00
摘要： PURPOSE:To attain the monitor and test at a proper signal level by adopting the structure in which each signal level from both remote and near end terminal equipments is arranged to be an uniform level by using two 2/4-wire conversion circuits and the signal is branched and outputted. CONSTITUTION:A low level signal coming from a remote end terminal equipment A appears at a 4-wire output 4WS of a 2/4-wire conversion circuit Ha and is given to an amplifier AMP without being subject to attenuation. On the other hand, a high level signal coming from a near end terminal equipment a appears at the 4-wire output 4WS of a 2/4-wire conversion circuit Hb and is given to a 4-wire input 4WR of the said 2/4 conversion circuit Ha, subjected to large attenuation in the inside of the conversion circuit Ha, the result appears at the 4-wire output 4WS and is inputted to the said AMP. Thus, even if there is a difference in the signal level between the remote end terminal equipment A and the near end terminal equipment B, the signal from each terminal equipment outputted from a branch output terminal O is arranged to a uniform level.

4. 发明专利

JPS6343453A VOICE MULTIPLE ADDRESS SYSTEM 失效
公开(公告)号：JPS6343453A
公开(公告)日：1988-02-24
申请号：JP18800586
申请日：1986-08-11
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SHIMANO SHOZO , TAKAGI YUKIMASA , IHI NORIOMI , KAWAHASHI ASAJI , MURAKAMI HIDEKI , OKUDA MASAKI , SHITAYA HIDEMI
IPC分类号： H04M3/42 , H04M11/00
摘要： PURPOSE:To make simultaneous voice information to many telephone circuits and extension telephones of PBX and to make various sound connection and remote setting of sound source possible by providing a switch control device provided with automatic outgoing and incoming function and a sound source amplifier. CONSTITUTION:When incoming occurred in a switch control device 2, a change- over switch SVn corresponding to an incoming telephone line #n is connected to a talkie contact TK1 or TK2, and voice from sound sources 5a, 6a is sent out to an incoming telephone. The control of voice to the line is performed by control of making and breaking of the change-over switch SVn to the talkie contacts TK1, TK2. The control of the change-over switch SVn is performed by an external controlling device 3, and the control of sound sources 5a, 6a is performed by an external control device 3a.

5. 发明专利

JPH04288759A CORDLESS TELEPHONE SET CORRESPONDING TO ISDN 失效
公开(公告)号：JPH04288759A
公开(公告)日：1992-10-13
申请号：JP7851691
申请日：1991-03-18
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MORI SEIJI , TATE KAZUYUKI , INAOKA SHIGE , TAKAGI YUKIMASA
IPC分类号： H04M3/42 , H04M11/00 , H04Q3/58
摘要： PURPOSE:To enable speaking by automatically selectively connecting a required radio telephony equipment according to an incoming call signal at the cordless telephone set composed of a terminal equipment connected to an ISDN line and plural radio telephony equipments. CONSTITUTION:A connector 11 connected to an ISDN line 10 is composed of an I interface 1, memory parts 4a, 4b and 4c to record the phone numbers of radio telephony equipments, manipulation part 3 to register the phone numbers, and radio transmission/reception part 5. Radio telephony equipments 13-14 are constituted by adding a control part 8 for detecting incoming call information transmitted from the connector 11 through a radio channel 12 to the specified radio telephony equipment and for connecting the incoming call.

6. 发明专利

JP2585301B2 失效
公开(公告)号：JP2585301B2
公开(公告)日：1997-02-26
申请号：JP25231687
申请日：1987-10-08
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , IHI NORIOMI , KAWAHASHI ASAJI
IPC分类号： H04N1/00 , H04M3/42

7. 发明专利

JPS63246067A INFORMATION TRANSFER DEVICE 失效
公开(公告)号：JPS63246067A
公开(公告)日：1988-10-13
申请号：JP25231687
申请日：1987-10-08
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , IHI NORIOMI , KAWAHASHI ASAJI
IPC分类号： H04N1/00 , H04M3/42
摘要： PURPOSE:To attain multi-address transmission of picture and voice to plural picture/voice terminal equipments by combining a picture/voice terminal equipment, a multi-address equipment and a switch. CONSTITUTION:Picture/voice terminal equipments TVH1-TVHn are connected to each input of a picture/voice information transmitter TVTE via an electric communication equipment TP. The information multi-address section MASS in the TVTE is provided with n-set of network control sections N1-Nn, relay contacts SW1-SWn switching each input signal to distribution amplifiers SAMP 1-SAMPn or an individual communication connection IL and a control section SCONT controlling the network control section N and the relay contact SW. Moreover, the 1st terminal T1 of the HTVH of the host side is connected to the common input line of the SAMP1-SAMPn and the 2nd terminal T2 is connected to the IL respectively. Thus, picture and voice are subject to multi- address transmission to plural picture/voice terminal equipments.

8. 发明专利

JP2522831B2 失效
公开(公告)号：JP2522831B2
公开(公告)日：1996-08-07
申请号：JP18051289
申请日：1989-07-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , KATO YOSHIRO , KAWAHASHI ASAJI , OOISHI HIROKI
IPC分类号： H04M3/42 , H04L12/18

9. 发明专利

JPH03173265A VIDEO RECORDER SIMULTANEOUS CONTROL SYSTEM 失效
公开(公告)号：JPH03173265A
公开(公告)日：1991-07-26
申请号：JP31078689
申请日：1989-12-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , NISHIMURA YASUHIKO , KURATA KAZUYUKI , IHI NORIOMI
IPC分类号： H04N5/765 , H04M11/00 , H04N5/782
摘要： PURPOSE:To control simultaneously plural video devices connecting to a telephone line with a PB signal or the like by providing a signal multiple address section, a PB signal generator, an external control section, an automatic switch and a video terminal equipment or the like. CONSTITUTION:A lecturer in a center enters a telephone number of a trainee registered in advance in an external control section HCONT with a keyboard, sends the telephone number to a signal multiple address section to activate a relay contact corresponding to the telephone number. Then the call connects to a PB signal generator DTMF via an automatic switch ASW or the like. Then a start signal is sent to each trainee from the center, each video terminal equipment VTRT is started via an electric communication installation TP and the in-lecture mode is set by the HCONT. Then each trainee sets a video tape distributed in advance onto the VTRT by the announcement command from the center, a PB signal is transferred via the DTMF, the VTRT is operated according to a video operation PB signal code number and the presence and the degree of understanding are improved by the addition of visual information.

10. 发明专利

JPH0346430A DATA MULTIPLE ADDRESS SYSTEM 失效
公开(公告)号：JPH0346430A
公开(公告)日：1991-02-27
申请号：JP18051289
申请日：1989-07-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TAKAGI YUKIMASA , KATO YOSHIRO , KAWAHASHI ASAJI , OISHI HIROKI
IPC分类号： H04M3/42 , H04L12/18
摘要： PURPOSE:To attain economical and suitable data multiple address operation by providing a transmission means sending information simultaneously to plural terminal equipments connected via a communication channel and a returning means returning a confirming signal, etc. CONSTITUTION:When the information is subjected to multiple address communication to plural data display terminal equipments 7 connected via the communication channel, at first transmission information is sent repetitively singly unidirectionally from a data multiple address transmitter 1 to each data reception network controller 5 and each terminal equipment 7. Then each controller 5 receives a signal and when the transmitter 1 receives a reception end signal returned from each controller 5, the transmitter stops the repetitive transmission of transmission information. That is, the transmitter 1 repeats the transmission of the transmission information till a reception end signal being a reception confirming signal is received from each controller 5. Thus, the same information is sent to lots of the terminal equipments 7 in a short time economically.

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