专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2000138970A METHOD FOR ACCOMMODATING RADIO ACCESS SUBSCRIBER TERMINAL TO EXISTING COMMUNICATION NETWORK 失效
公开(公告)号：JP2000138970A
公开(公告)日：2000-05-16
申请号：JP31110898
申请日：1998-10-30
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： FUNAYAMA TAKESHI , NAGAO MIYAO , NAKAZAWA HIROAKI , NANBA YUKIHIRO
IPC分类号： H04M3/54 , H04L12/28 , H04L29/06 , H04W4/18 , H04W92/02 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To conduct communication between an optional radio access subscriber terminal and an optional subscriber terminal on an existing communication network or other optional radio access subscriber terminal. SOLUTION: For example, a terminal signal from a radio access subscriber terminal 7a used between the terminal 7a and a subscriber terminal 3a is converted by a protocol converter 4 into a terminal signal on an existing communication network corresponding to the type of the service, the converted signal is transferred to the existing communication network exchange 1a, converted further by an exchange 1a into a terminal signal corresponding to the type of the service of the terminal 3a and then transferred to the terminal 3a. The terminal signal from the terminal 3a is transferred to the terminal 7a while being inversely converted by the exchange 1a and the converter 4 on a reverse path.

2. 发明专利

JP2002058060A SIGNAL CONTROL METHOD 失效
公开(公告)号：JP2002058060A
公开(公告)日：2002-02-22
申请号：JP2000238466
申请日：2000-08-07
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YAMAMOTO KOHEI , FUKUSHIMA YUTAKA , NISHI YUMIKO , TSUKIOKA YOICHI , NANBA YUKIHIRO
IPC分类号： H04M3/42 , H04M3/00 , H04M11/00 , H04W24/04 , H04W84/14 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To realize a various information transmitting service such as a calling telephone number receiving function service while securing the subscriber's circuit control signal transmission and reception timing of the service and protecting the subscriber's circuit control signal from any data transmission error by shortening a delay time in a radio section. SOLUTION: At the time of performing cabling between inter-protocol converter 2a and WAC 3a and calling inside FWA system 7a, a voice signal transmitting line 23a and a subscriber's circuit control signal transmission and receiving line 24a are secured for transmitting and receiving a outgoing subscriber's circuit control signal in a proper format such as a bit map format. Moreover, a control signal monitor control unit 13a is provided with a buffer 14a for temporarily storing an outgoing subscriber's circuit control signal 18a in a proper format such as a bit map format to be received from the subscriber's circuit control signal transmitting and receiving line 24a, an incoming monitoring part 15 for detecting the secondary response signal of an incoming subscriber's circuit control signal 21b, an L1 and L2 polarity depolarization preparing part 16a for preparing L1 and L2 polarity depolarization to be outputted to a subscriber's circuit 6a at the time of detecting the secondary response signal, and an MF switching part 17a for switching the outgoing subscriber's circuit control signal 21a to be transmitted to the subscriber's circuit 6a.

3. 发明专利

JP2003134248A COMMUNICATION SYSTEM UTILIZING NORMAL CONNECTION OF ISDN- D CHANNEL 审中-公开
公开(公告)号：JP2003134248A
公开(公告)日：2003-05-09
申请号：JP2001326164
申请日：2001-10-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NANBA YUKIHIRO
IPC分类号： H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a communication system utilizing normal connection of ISDN-D channel that uses a D-channel of an ISDN line so as to efficiently make various data communication and enhance the operating rate of the D channel of the ISDN line. SOLUTION: An automatic vending machine use data communication terminal 2a, a large sized electric sign display device use data communication terminal 2b, a remote sensing measurement device use data communication terminal 2c, and a traffic light use data communication terminal 2d are respectively connected to an automatic vending machine use information center 8a, a news information center 8b, a remote sensing data integration use information center 8c, and a traffic light use information center 8d through a TA 3, the D-channel of the ISDN line in a normally connected state, a public line network 4, an exchange 5 and an IP network 7, and each terminal and each center make data communication via the D-channel of the ISDN line in a normally connected state at a low and fixed cost.

4. 发明专利

JP2003131884A NETWORK CONNECTED PET ROBOT SYSTEM 审中-公开
公开(公告)号：JP2003131884A
公开(公告)日：2003-05-09
申请号：JP2001325246
申请日：2001-10-23
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NANBA YUKIHIRO
IPC分类号： G06F9/445 , G06F11/00 , G06F13/00
摘要： PROBLEM TO BE SOLVED: To provide a network connected pet robot system capable of easily and rapidly receiving a program of a pet robot for controlling movements of the pet robot from a contents providing server by an IP connection. SOLUTION: The pet robot 1 performs communication with the contents providing server 8 from a wireless LAN slave unit via a wireless LAN master unit 2, a D-channel 3 of the ISDN line, a switching equipment 5, and the IP network 7. The robot 1 receives the pet robot program and data transmitted from the contents providing server 8 by the wireless slave unit, and updates corresponding pet robot program and data stored in a non-volatile RAM by the received pet robot program and data.

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