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11. 发明专利

JPH11127499A MULTI-POINT VOICE COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH11127499A
公开(公告)日：1999-05-11
申请号：JP29074097
申请日：1997-10-23
申请人： NIPPON TELEGRAPH & TELEPHONE , NTT ELECTRONICS CORP
发明人： SHIMAUCHI SUEHIRO , KANEDA YUTAKA , IKEDA YASUHISA
IPC分类号： H04S1/00 , H04M3/56
摘要： PROBLEM TO BE SOLVED: To provide a speaker form each point with a sound image in a voice conference. SOLUTION: Voice signals Sa-Sd from spots A-D are transmitted through communication liens to a center 24, and converted into first signals Sa1 -Sd1 and second signals Sa2 -Sd2 (Sa1 >Sb1 >Sc1 >Sd1 , Sa2

12. 发明专利

JP2002077456A SECURITY UNIT 失效
公开(公告)号：JP2002077456A
公开(公告)日：2002-03-15
申请号：JP2000255508
申请日：2000-08-25
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： G08B21/02 , H04M1/00 , H04M11/04
摘要： PROBLEM TO BE SOLVED: To provide a security unit which can realize a general-purpose simple function by providing a function of detecting the state of communication use in a communication unit needed to give notice of abnormality. SOLUTION: This security unit is equipped with a means, which is connected between a protector and communication equipment connected to a subscriber line and detects a current flowing through the subscriber line, and automatically informs a preset ground point that safety can not be confirmed for a long period with a voice message and/or electronic mail and/or a beeper message, and/or a PB signal, if the current cannot be detected, even after a date and time has elapsed as a preset monitor cycle period and/or a monitor period.

13. 发明专利

JPH11112600A DATA COMMUNICATION METHOD AND SYSTEM 失效
公开(公告)号：JPH11112600A
公开(公告)日：1999-04-23
申请号：JP27304797
申请日：1997-10-06
申请人： NIPPON TELEGRAPH & TELEPHONE , NTT ELECTRONICS CORP
发明人： KAWAKUBO HIDEJI , YAMANAKA KIYOSHI , MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： H04L29/08 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a data communication method and its system in which the utility cost and time required for communication are reduced, lots of information amounts are used and the extension performance of the procedure is high. SOLUTION: In the case that a call message: ALERTING sent by a protocol control section 22 of a 2nd data communication equipment 2 is received via a network (ISDN channel) N, a call control section 11 of a 1st data communication equipment 1 inhibits a function to hold a channel used for a digital subscriber channel of the network N, issues a cut-off request immediately for channel interruption, and a protocol control section 12 of the 1st data communication equipment 1 sends a disconnection message: DISCONNECT to the network N in response to the issue of the cutoff request by the call control section 11.

14. 发明专利

JP2006352484A LINE CONNECTION DEVICE 审中-公开
公开(公告)号：JP2006352484A
公开(公告)日：2006-12-28
申请号：JP2005175701
申请日：2005-06-15
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , ARIUMI TOSHIO , IKEDA YASUHISA , MARUYAMA TETSUYA
IPC分类号： H04L29/10 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a line connection device capable of distinguishing the occurrence of a communication failure such as impossible packet transmission/reception at any of a subscriber line section or inside of a communication network. SOLUTION: A line connection device 100 comprises an optical signal controller 101 to which a subscriber line is connected, and an Ethernet (R) controller 107 to which a terminal side device for performing transmission via the subscriber line is connected; and relays a transmission/reception information transmitted or received by the terminal side device. Further, the line connection device 100 comprises a layer 1 monitor 102 for monitoring the status of a received signal received by the optical signal controller 101, and a status notification function 106 for transmitting a subscriber line failure information indicative of a failure in the subscriber line, when changes in the status of the received signal satisfy a predetermined condition. COPYRIGHT: (C)2007,JPO&INPIT

15. 发明专利

JP2002111854A COMMUNICATION RECORDING ADAPTOR 失效
公开(公告)号：JP2002111854A
公开(公告)日：2002-04-12
申请号：JP2000302531
申请日：2000-10-02
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： H04M1/652 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a communication recording adaptor for achieving a universal, simple security function by providing a function for recording the state of the utilization of communication as one living rhythm information for conforming safety for remote conformation. SOLUTION: The communication recording adaptor records the date/time for detecting the dialing and/or signal arrival and/or start of communication and/or end of communication that are effective as living rhythm information in a recording section 34 as communication record, and reports the recorded details of the recording section 34 to a ground-to-ground communication record- reading request by a PB signal or a voice signal that is recognized by a PB signal/voice signal detection section 40 automatically by a synthesis voice and/or PB signal.

16. 发明专利

JP2002335196A INTERFERENCE DETECTION SYSTEM 失效
公开(公告)号：JP2002335196A
公开(公告)日：2002-11-22
申请号：JP2001137687
申请日：2001-05-08
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , BAN TOMOHIRO , IKEDA YASUHISA
IPC分类号： H04M1/24 , H04B3/46
摘要： PROBLEM TO BE SOLVED: To provide an interference detection system, in which the conditions of signal leakages from other transmission line laid in a physically approximate place can be recognized easily, at the user side of transmission line. SOLUTION: The interference detection system is provided between a transmission line and a terminal and detects interference with a signal on other transmission line, employing a different signaling system. The interference detection system comprises a means (300) for detecting the power spectrum of signal components, having specified frequencies (f1, f2) on the transmission line, a means (310) for generating output information, depending on a power spectrum detected by the power spectrum detecting means within a specified time period, and a means (320) for displaying the interference level, depending on the output information.

17. 发明专利

JP2001257802A ISDN WIRING SYSTEM 失效
公开(公告)号：JP2001257802A
公开(公告)日：2001-09-21
申请号：JP2000069251
申请日：2000-03-13
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： H04L29/10 , H04L12/02 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide an ISDN wiring system which decreases the number of cores and extends a communication distance by transferring a U-point interface as the interface of an outdoor line between a plurality of terminal adapters. SOLUTION: A 1st terminal adapter 41 connected to the U-point interface of an ISDN line has an S/T-point interface to which the U-point interface of the ISDN line is connected and a U-point interface which transfers the U-point interface of the ISDN line and a 2nd terminal adapter 49 connected to the U-point interface of the 1st terminal adapter 41 has an S/T-point interface to which the U-point interface is converted and a U-point interface transferring the U-point interface; and the 1st terminal adapter 41 and 2nd terminal adapter 49 are wired by the two-core conductor of the U-point interface.

18. 发明专利

JP2001223820A ISDN COMMUNICATION SYSTEM IN EMERGENCY 失效
公开(公告)号：JP2001223820A
公开(公告)日：2001-08-17
申请号：JP2000032111
申请日：2000-02-09
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： H04B1/74 , H04L29/00 , H04L29/14 , H04M1/253 , H04M11/04 , H04M19/08
摘要： PROBLEM TO BE SOLVED: To provide an ISDN communication system for emergency communication, which starts speech after reporting the condition of a device/system to be maintained at the normal time free from a power failure and secures a notification means for at least speech at the time of a power failure. SOLUTION: When a handset 14 of an ISDN telephone set 13 for emergency is hooked off, a state report instruction is given to a communication controller 15 through an off-hook report line 16 to report the state of a device/system 18 to a center through an ISDN line 11. At the normal time, the ISDN telephone set 13 for emergency is set to the call originating state after the end of report of the state of the communication controller 15, and at the time of a power failure, the ISDN telephone set 13 for emergency is set to the call originating state and is set to a speech mode through the ISDN line 11 when the handset 14 is hooked off.

19. 发明专利

JP2001313744A CALL CHARGE ADJUSTMENT ADAPTER 失效
公开(公告)号：JP2001313744A
公开(公告)日：2001-11-09
申请号：JP2000133472
申请日：2000-05-02
申请人： NTT ELECTRONICS CORP
发明人： MATSUMOTO RYOICHI , IKEDA YASUHISA
IPC分类号： B42D15/10 , H04M15/00 , H04M17/00
摘要： PROBLEM TO BE SOLVED: To provide a call charge adjustment adapter which enables a user to easily use a telephone with a cash card and authenticates the cash card with low operation expenses. SOLUTION: This adapter is provided with an ISDN line interface part connected to an ISDN line, a read part 12 which reads the cash card, a telephone set interface part 14 to which a telephone set is connected, a signal discrimination part which discriminates a PB or dial signal from the telephone set, a signal storage part where the signal discriminated by the signal discrimination part is stored, a cash card availability confirmation part which confirms availability of the cash card, a call originating part which calls the call destination with a destination telephone number stored in the signal storage part, and a charge adjustment request part which receives a charge report from the ISDN line at the time of the end of speech and transmits it to an authentication center 20 by UUI information and pulls out the charge from the cash card.

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