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1. 发明专利

JP2002344421A EXCHANGE SYSTEM EMPLOYING SPREAD SPECTRUM MODULATION 失效
公开(公告)号：JP2002344421A
公开(公告)日：2002-11-29
申请号：JP2001142556
申请日：2001-05-14
申请人： HITACHI LTD , HITACHI TELECOMM TECH
发明人： OZEKI MASANORI , AKIYAMA TADAHIKO
IPC分类号： H04J3/00 , H04J13/00 , H04W4/04 , H04W56/00 , H04W72/04 , H04W84/16 , H04W88/14 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To acquire synchronization at high speed even for an device having low throughput, and to improve confidentiality in speech communication. SOLUTION: When a control means 240 identifies a called terminal device, to which an incoming call request is made from a telephone network 400, the control means 240 selects an idle spread spectrum modulating/demodulating means out of a plurality of spread spectrum modulating/demodulating means 210, and sets a spreading code for synchronization to the selected spread spectrum modulating/demodulating means. The selected spread spectrum modulating/ demodulating means performs modulation by the spreading code for synchronization. A transmission/reception means transmits the modulated signal to the called terminal device by the spreading code for synchronization. When the synchronization is acquired with the called terminal device, the control means 240 sets the spreading code for communication which is different from the spreading code for synchronization and is intrinsic to the called terminal device to the selected spectrum modulating/demodulating means, and make communication with the called terminal device.

2. 发明专利

JP2002281154A PRIVATE EXCHANGE SYSTEM IN STATION 失效
公开(公告)号：JP2002281154A
公开(公告)日：2002-09-27
申请号：JP2001072684
申请日：2001-03-14
申请人： HITACHI TELECOMM TECH
发明人： OUCHI TAKESHI
IPC分类号： H04M3/32 , H04L12/26 , H04L29/14 , H04M3/26
摘要： PROBLEM TO BE SOLVED: To solve the problem that of implementation of line communication test can not be carried out without interrupting data communication between a first data terminal and a second data terminal. SOLUTION: The exchange system includes a first station exchange system 20A (a second station exchange system 21B) for storing and connection a first data terminal 21A (a second data terminal 21B), and a multiplexing circuit 31 for connecting the communication between these station exchange systems. A test pattern is multiplied into a multiplexing signal through are first station exchange system. The first station exchange system includes a first multiplexing signal exchange unit 12A for transmitting the multiplexing signal to the second station exchange system, a first data detection unit 13A for detecting a test pattern from the multiplexing signal returned from the second station exchange system, and a first central processing system 2A, for obtaining the result of the circuital communication test between the first station exchange system and the second station exchange system, on the basis of the test pattern.

3. 发明专利

JP2002271488A TELEPHONE EXCHANGER 失效
公开(公告)号：JP2002271488A
公开(公告)日：2002-09-20
申请号：JP2001071519
申请日：2001-03-14
申请人： HITACHI TELECOMM TECH
发明人： TSUBOI KAZUSHI
IPC分类号： H04M3/22 , H04M3/00
摘要： PROBLEM TO BE SOLVED: To provide a means for notifying a lifetime of a power failure power source to a user by use of a telephone set connected to a telephone exchanger about an exchange timing of the power-failure power source (battery) which is used for the telephone exchanger. SOLUTION: A central controller 307 monitors message display data 500 stored in a storage device 308 by use of clock information 310 and when it determined that a message is required to display, it extracts display data from the message display data 500 and displays the message in an internal line terminal 305.

4. 发明专利

JP2002252721A COMMUNICATION SYSTEM 审中-公开
公开(公告)号：JP2002252721A
公开(公告)日：2002-09-06
申请号：JP2001394170
申请日：2001-12-26
申请人： HITACHI TELECOMM TECH
发明人： WATANABE SUSUMU , KOBAYASHI YUJI , ANDO TATSUHIKO , YOKOTA SHINICHI
IPC分类号： H04M1/02 , H04M1/00 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To build up a data communication system at a low cost especially without using an exclusive facility, that can easily be extended or relocated by general intelligence and cope easily with a scale from a small scale to a large scale. SOLUTION: A phone terminal 10 provided with a communication function and a display function of image information transmits a request command to request the image information to a computer (information management unit) 16 managing storage of the image information, lays out a picture and displays it in response to the image information sent from the information management unit 16, a user optionally selects information included in the displayed picture according to the operation, transmits a selection command to the information management unit 16 and the system lays out a new picture depending on the image information sent from the information management unit 16 depending on the selection command and displays the picture.

5. 发明专利

JP2002252680A DEALING PHONE TERMINAL 失效
公开(公告)号：JP2002252680A
公开(公告)日：2002-09-06
申请号：JP2001046916
申请日：2001-02-22
申请人： HITACHI TELECOMM TECH
发明人： MATSUNOBU KOICHI
IPC分类号： H04M1/00 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To reduce the space for placing ten-key facility to implement more downsizing and space saving, in this dealing phone terminal. SOLUTION: In the dealing phone terminal, there are included a screen display part 11 for displaying a screen corresponding to an input button, a switch panel 12 where the input button corresponding to the screen display part 11 is placed, a screen data storing means 13 that stores data of an autodial screen corresponding to the input button where a line and a phone number of other end are able to be set, and data of a ten-key input screen where a ten-key capable of inputting figures and alphabets is displayed, a page selecting button 141 for inputting selection among screens displayed at the screen display part 11, and a display control means 15 for operating the page selecting button 141 to select among screens displayed at the screen display part 11, and is provided a figure and alphabet inputting facility 16 for inputting figures and alphabets by using a ten-key on the ten-key input screen.

6. 发明专利

JP2002247190A MAINTENANCE MANAGEMENT SYSTEM FOR ELECTRONIC EXCHANGE 失效
公开(公告)号：JP2002247190A
公开(公告)日：2002-08-30
申请号：JP2001041513
申请日：2001-02-19
申请人： HITACHI TELECOMM TECH
发明人： SAKAI MICHIYO , SAITO SHINJI
IPC分类号： H04M3/22 , H04M3/00
摘要： PROBLEM TO BE SOLVED: To provide a maintenance management system for electronic exchanges where one maintenance terminal periodically and automatically checks the electronic exchanges via the Internet so as to apply maintenance management to them. SOLUTION: An identification code is given to an electronic private branch exchange PBX 3, a maintenance terminal MP 1 stores data such as the station data of the electronic private branch exchange PBX 3 corresponding to the identification code, the maintenance terminal MP 1 collates the data such as the station data stored therein with data such as the station data of each electronic private branch exchange PBX 3 and matches both at all times so as to keep the data such as the station data of the electronic private branch exchange PBX 3 up-to-date.

7. 发明专利

JP2002223270A TELEPHONE TERMINAL DEVICE 审中-公开
公开(公告)号：JP2002223270A
公开(公告)日：2002-08-09
申请号：JP2001394110
申请日：2001-12-26
申请人： HITACHI TELECOMM TECH
发明人： WATANABE SUSUMU , KOBAYASHI YUJI , ANDO TATSUHIKO , YOKOTA SHINICHI
IPC分类号： H04M1/00
摘要： PROBLEM TO BE SOLVED: To provide a telephone terminal device with which a data communication system can be built at a low cost without using exclusive equipment especially. SOLUTION: The telephone device comprises a line interface circuit 401 for communicating to a telephone line, a handset HS, a speech circuit 403 connected between the circuit 401 and the handset HS to transmit/receive a voice signal, a communication data transmitting/receiving circuit 422 for transmitting/ receiving a data signal, an MPU 408 for sending connection request information including dial information inputted into the telephone line and sending data connection request information to the telephone line on receiving a request for data communication connection, an LCD 430 capable of displaying at least character information, an MPU 421 for generating character information on the basis of the data signal received by the circuit 422 and outputting this to the LCD 430, and a character generator 428.

8. 发明专利

JP2002211711A CIRCULATING LOADER 失效
公开(公告)号：JP2002211711A
公开(公告)日：2002-07-31
申请号：JP2001006709
申请日：2001-01-15
申请人： HITACHI TELECOMM TECH
发明人： SUGANO KAZUO , EBISAWA HIROSHI , SHIRATA NAOTERU
IPC分类号： B65G1/06
摘要： PROBLEM TO BE SOLVED: To enable completely-unmanned automatic operation in an inspection process or others. SOLUTION: This circulating loader comprises waiting-for-inspection racks 10 for storing waiting-for-inspection boards 7a, inspected racks 11 for storing inspected boards 7b, upper rack stockers 2 and lower rack stockers 3 installed at plural stages on an inspecting machine 6 or others at its board carry-in side and provided with conveyors 2a, 3a, respectively, for reciprocating the waiting-for-inspection racks 10 and the inspected racks 11 to the direction A of carrying the boards in and out, and at least two elevators 4, 5 installed at both ends of the upper rack stockers 2 and the lower rack stockers 3 for moving the waiting-for-inspection racks 11 and the inspected racks 12 up and down and circulating them to the upper rack stockers 2 and the lower rack stockers 3. The waiting-for-inspection racks 10 are automatically circulated and the waiting-for-inspection boards 7a in the waiting-for-inspection racks 11 are inspected in sequence, therefore enabling completely-unmanned automatic operation in the inspection process or others.

9. 发明专利

JP2002185553A RELAY SYSTEM 失效
公开(公告)号：JP2002185553A
公开(公告)日：2002-06-28
申请号：JP2000376067
申请日：2000-12-11
申请人： HITACHI TELECOMM TECH
发明人： AZUMA KAZUMASA
IPC分类号： H04L29/06 , H04L12/28 , H04L12/70 , H04L12/749 , H04L12/801 , H04L12/911 , H04M3/00
摘要： PROBLEM TO BE SOLVED: To enable relay among switch boards without reviewing the number systems of them even when adopting different number systems. SOLUTION: An SVC controller 13 finds out special numbers in incoming numbers transmitted from line interface parts 151-15m and 161-16m, identifies the line interface parts 151-15m and 161-16m to be relayed and transmits the incoming numbers. The line interface parts 151-15m and 161-16m receive the incoming numbers from the SVC controller 13, edit them according to the number edit conditions previously informed and then transmit them to lines 31-3n and 51-5m connected to themselves.

10. 发明专利

JP2002185461A REPEATER INSTALLATION 失效
公开(公告)号：JP2002185461A
公开(公告)日：2002-06-28
申请号：JP2000376069
申请日：2000-12-11
申请人： HITACHI TELECOMM TECH
发明人： WADA ISAO , WATANABE SAKAE
IPC分类号： H04Q3/58 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To control compression/decompression of voice data without relying upon an exchange, e.g. a PBX. SOLUTION: When an incoming call makes a transition to a serviceable state, an ATM multiplexer relays voice data, at first, for that call by applying a first processing for compressing/decompressing the voice data. In this regard, a transmission pattern is multiplexed onto the voice data for that call being delivered to a voice line. When the transmission pattern is detected from the voice data for the call received on the voice line within a specified detection time, relay of voice data is interrupted for that call for a specified noise guide time, and then relay of voice data is resumed for that call by applying a second processing where compression/decompression of the voice data is not performed.

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