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81. 发明专利

JP2000330956A METHOD FOR PARALLEL LOGIC SIMULATION 失效
公开(公告)号：JP2000330956A
公开(公告)日：2000-11-30
申请号：JP13525199
申请日：1999-05-17
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： FUKUMA TAKESHI , FUKASE YOSHIHIRO , NAKAI TOMOAKI , MIZUGUCHI HIROSHI
IPC分类号： G06F11/25 , G06F11/26 , G06F15/163 , G06F15/177 , G06F17/50
摘要： PROBLEM TO BE SOLVED: To distribute external software models to multiple processors and to shorten the time required for a communication process between processors needed when the external software models are executed. SOLUTION: An other-processor logic read-in control part of a control part 101 of a Host obtains all information needed for execution among pieces of logic information stored in a Node from the Node by an inter-processor communication process part 107 and stores it as an other-processor logic value information 105 before executing an external software model 102 by an external software model execution part of the control part 101; and logic information 104 of the Host itself and other-processor logic value information 105 are used for processing and the logic information to be written to the Node which is obtained by the process if stored as other-processor logic write information 106. After the execution ends, an other-processor logic write control part sends the information 106 from the Host to the Node by the process part 107. After transmission to the Host, the Node executes its external software model 112 until reception.

82. 发明专利

JP2000292534A RADIO TAG READING SYSTEM 失效
公开(公告)号：JP2000292534A
公开(公告)日：2000-10-20
申请号：JP10257199
申请日：1999-04-09
申请人： HITACHI INFORMATION TECHNOLOGY
发明人： KURIHARA NOBUO , NISHINO HIROICHI , WATANABE YUJI , SAKAMOTO MASAO , SUGIYAMA TAICHI
IPC分类号： G06K17/00 , G01S13/74
摘要： PROBLEM TO BE SOLVED: To provide a radio tag reading system which can surely read radio tag information marked on articles without omission. SOLUTION: A radio tag reading system is provided with terminal equipment 2 which makes lending and returning processing, an antenna 3 which can make transmission and reception for scanning articles, and an article table 4. On the table 4, a member card 6 and an article 7 to be rent is placed. Radio tags 5 are stuck to the card 6 and article 7. On the bottom side of the table 4, springs 8 are provided and elastically vibrate the table 4 in the vertical direction when the card 6 and article 7 are placed on the table 4 or the hands of human beings touch the table 4. Since the radio tags 5 surely enter the working area of the antenna 3 as the table 4 is vibrated, the tags 5 are surely read without omission.

83. 发明专利

JP2000286859A DUPLEXED NETWORK EQUIPMENT 失效
公开(公告)号：JP2000286859A
公开(公告)日：2000-10-13
申请号：JP9127099
申请日：1999-03-31
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： KURAMOTO MASAYUKI , SUGIMOTO FUMINORI , KANEKO MASATAKA , ABE HIROSHI , SHINDO TAKASHI
IPC分类号： H04L12/28
摘要： PROBLEM TO BE SOLVED: To improve availability at the time of switching a system from standby and to succeed a communication connection which is previously established without any contradiction and interruption in the switching of the system of any opportunity by generating a start pulse at the same frequency and the same phase as a pulse generation mans on the active use-side. SOLUTION: A pulse generation means 215 on a standby side outputs a pulse at the same frequency and the same phase as a pulse generation means 205 on the active use-side. A writing means 212 on the preliminary side receives an inner cell similar to that sent to a writing means 202 on the active use-side at the same timing and the same order as the writing means 202 on the active use-side from a first transfer means 102 in a single input line corresponding part 10 and writes it in a common buffer memory 211 on the preliminary side at the same timing and the same order. A reading means 213 on the standby side reads the inner cell in the common buffer memory 211 on the standby side at the same timing and the same order as a reading means 204 on the active use-side and send it to the same output line corresponding part 30 at the same timing and the same order.

84. 发明专利

JP2000267981A TERMINAL 失效
公开(公告)号：JP2000267981A
公开(公告)日：2000-09-29
申请号：JP7449499
申请日：1999-03-18
申请人： HITACHI INFORMATION TECHNOLOGY
发明人： HAKAMATA HIRONORI
IPC分类号： G06F13/12 , G06F3/06
摘要： PROBLEM TO BE SOLVED: To provide a terminal for which no exclusive circuit for every I/O driving device as in the conventional case is required, by which an instantaneous processing is enabled even when large quantity of data is transferred and which is directly connected with a host computer. SOLUTION: The terminal 1 is primarily constituted of a work station 7 including input devices 2, 3, a display 4 and external storage devices 5, 6, provided with a channel adaptor 10 to be connected with a channel C of a host computer H and a control part 8 to analyze a channel command received via the channel adaptor 10, transmission and reception of data in the external storage devices 5, 6 are controlled based on an analyzed result of the channel command by the control part 8.

85. 发明专利

JP2000261567A LAN TELEPHONE SYSTEM 失效
公开(公告)号：JP2000261567A
公开(公告)日：2000-09-22
申请号：JP6396799
申请日：1999-03-10
申请人： HITACHI INFORMATION TECHNOLOGY
发明人： SAKURAI TAKAYUKI
IPC分类号： H04L29/06 , H04L12/28 , H04L12/46 , H04M1/26 , H04M1/2745 , H04M3/00 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide an easy-to-use local area network(LAN) telephone system. SOLUTION: The call originating operation of a LAN telephone is performed by first picking up the receiving of a push-button telephone set 20 and pressing push-buttons. Thus, an analog push-button signal is inputted through a telephone set interface 22, a switch part 33, a switch part 32 and a speech IC 31 to an A/D converting circuit 35 where it is converted to a digital push-button signal, and outputted through a decode circuit 36 to a personal computer(PC) 40. This digital push-button signal is recognized by the push-button signal recognizing part 41 of the PC 40 and translated to an IP address by an IP address translating part 42. A call originating processing part 43 determines a party from this IP address, calls the party through a LAN board 45 and a LAN 50 and starts LAN speaking.

86. 发明专利

JP2000261310A SYNCHRONIZATION CIRCUIT FOR ASYNCHRONOUS SIGNAL AND SEMICONDUCTOR INTEGRATED CIRCUIT 失效
公开(公告)号：JP2000261310A
公开(公告)日：2000-09-22
申请号：JP6103499
申请日：1999-03-09
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： YOKOTA YASUYUKI
IPC分类号： G06F13/42 , G06F1/12 , H03K19/23
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of a metastable state in a latch circuit, to improve system performance and to improve the reliability of the system with respect to a semiconductor integrated circuit which includes a synchronization type circuit and to which an asynchronous signal is inputted externally. SOLUTION: Plural delay signals whose phases are different are generated by inputting an asynchronous signal to plural delay circuits 2a to 2n whose delay times are different from one another, these signals are inputted to the data input terminals of flip-flops 3a to 3n as latching means, and the output signals of the flip-flops are inputted to a decision circuit 4 to output logical values that are the most or have a high priority.

87. 发明专利

JP2000259911A PREPAID CARD SYSTEM, METHOD FOR DETECTING ILLEGAL CARD AND METHOD FOR DETECTING ILLEGAL TERMINAL EQUIPMENT 失效
公开(公告)号：JP2000259911A
公开(公告)日：2000-09-22
申请号：JP6496399
申请日：1999-03-11
申请人： HITACHI INFORMATION TECHNOLOGY
发明人： MURAKAMI MASAHIKO , ISHIZAKA TADAAKI
IPC分类号： G07F7/12 , G06K17/00 , G06Q20/00 , G06Q20/28 , G06Q20/40 , G06Q20/42 , G06Q50/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To eliminate any illegal prepaid card use. SOLUTION: The terminal numbers of legal terminals and the management number, residual frequency, and final use terminal number of a legal card 50 are registered in a center device 10. Terminals 20 and 30 communicate their own terminal numbers and the management numbers, residual frequencies, and final use terminal numbers of the mounted legal cards to the center device 10, and at the time of judging the validity of the terminals from the terminal numbers and the validity of the cards from the management numbers, residual frequencies, and final use terminal equipment numbers, the center device 10 communicates new terminal numbers and management numbers to the terminals, and updates the registered contents. The terminals 20 and 30 change their own terminal numbers to the communicated terminal numbers, and rewrite the final use terminal numbers of the card to the communicated terminal numbers, and the management numbers to the communicated management numbers, and updates the residual frequencies.

88. 发明专利

JP2000259188A METHOD OF COMPRESSING DIGITAL SPEECH DATA 失效
公开(公告)号：JP2000259188A
公开(公告)日：2000-09-22
申请号：JP5842199
申请日：1999-03-05
申请人： HITACHI INFORMATION TECHNOLOGY
发明人： NAKAJIMA TAKASHI
IPC分类号： G10L19/00 , H03M7/36
摘要： PROBLEM TO BE SOLVED: To reduce a data amount, and reduce consumption of resources by compressing digitized speech data. SOLUTION: Sampling data are divided into blocks in the units of a predetermined number; a difference between a sampling data at a base point and the other sampling data in each block are obtained as difference data; corresponding difference data are compared with each other among the blocks, and in the case that all the differences among respective difference data are within a predetermined permissible error, one block is allowed to be omitted, and the above-mentioned comparisons are performed among all the blocks and thus, non-omissible blocks are adopted as block data, and all the block data are expressed by the above-described difference data and recorded. And, the compressed data are comprised of header information (301), all block data expressed by the difference data (302), the one (303) consisting of plural of pairs of the number (331) affixed to the block data and the offset values (332) (value of base point data) (303).

89. 发明专利

JP2000244571A DEVICE AND METHOD FOR NETWORK RELAY 失效
公开(公告)号：JP2000244571A
公开(公告)日：2000-09-08
申请号：JP4642299
申请日：1999-02-24
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： SUKAI KAZUO , AIMOTO TAKESHI , YAZAKI TAKEMI , MATSUYAMA NOBUHITO , SAKO YOSHITO , TANABE TOMOHIKO
IPC分类号： H04L29/06 , H04L12/70 , H04L12/701 , H04L12/741 , H04L12/775 , H04L12/861 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To perform routing and packet transfer at high speed. SOLUTION: A transfer engine stores a packet received through a network interface part 30 into a packet buffer 12 and stores header information into a header RAM 11. A retrieval engine 14 retrieves transfer control information such as transfer destination information and action information by using the header information and writes it in the header RAM 11. In the transfer engine 13, an output packet is prepared on the basis of the information stored in the packet buffer 12 and the header RAM 11 and outputted to the transfer destination. A switch part 20 switches the output packet to a routing processing part 10 of the destination. In the transfer engine 13, reception processing and transmission processing are executed and in the retrieval engine 14, input retrieval processing and output retrieval processing are executed. Each processing is performed under pipeline control while independently using necessary tables.

90. 发明专利

JP2000244570A DEVICE AND METHOD FOR NETWORK RELAY 失效
公开(公告)号：JP2000244570A
公开(公告)日：2000-09-08
申请号：JP4595999
申请日：1999-02-24
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： SUKAI KAZUO , AIMOTO TAKESHI , YAZAKI TAKEMI , MATSUYAMA NOBUHITO , SAKO YOSHITO , TANABE TOMOHIKO
IPC分类号： H04L12/701 , H04L12/28 , H04L12/46 , H04L12/70 , H04L12/741 , H04L12/775 , H04L12/861 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To achieve high speed routing while guaranteeing high communication quality (QoS), high reliability and security. SOLUTION: A transfer engine 13 stores a packet received through a network interface part 30 into a packet storage buffer 12 and stores header information into a header RAM 11. A retrieval engine 14 retrieves transfer control information such as transfer destination information and action information by using the header information and writes it in the header RAM 11. In the transfer engine 13, an output packet is prepared on the basis of the information stored in the packet buffer 12 and the header RAM 11 and outputted to the transfer destination. A switch part 20 switches the output packet to a routing processing part 10 of the destination. The header RAM 11 can be asynchronously accessed at high speed independently of the packet buffer 12 and suppresses the access competition of the transfer engine 13 and the retrieval engine 14.

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