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1. 发明专利

JPH09204388A COMPUTER NETWORK SYSTEM 失效
公开(公告)号：JPH09204388A
公开(公告)日：1997-08-05
申请号：JP1154396
申请日：1996-01-26
申请人： HITACHI LTD
发明人： HASHIMOTO KAZUHIRO
IPC分类号： G06F1/20 , G06F11/30 , G06F13/00 , G06F15/16
摘要： PROBLEM TO BE SOLVED: To improve the reliability of a data communication controller by storing operation environment detecting information outputted from an operation environment detecting computerization means in a data message so as to transmit to a receiving side computer at the time of data communication between plural computers. SOLUTION: A data communication control part 15a within a communication side computer 11a forms a communication packet storing communication control information such as address information in a communication control information field and communication data in a communication data field according to a frame format to transmit to a data communication control part 19 as the operation detecting computerization means within a routing device 17 through a data communication line 28. The data communication control part 19 reads the communication packet, analyzes temperature information signal 26 being communication control information and operation environmental information within the communication control information field and forms the communication packet again to transmit to the receiving side computer 11b through a data communication line 27. Consequently the reliability of the whole system is improved.

2. 发明专利

JPH09204348A DOCUMENT MANAGEMENT SYSTEM 失效
公开(公告)号：JPH09204348A
公开(公告)日：1997-08-05
申请号：JP1253396
申请日：1996-01-29
申请人： HITACHI LTD
发明人： TADA KATSUMI , HASHIMOTO KAZUHIRO , KAMEDA SHIGERU , YAMAZAKI NORIYUKI , MATSUDA YOSHIKI , HASHIMOTO TETSUYA , AZUMA AKIO
IPC分类号： G06F12/00 , G06F9/44 , G06F9/46 , G06F9/50 , G06F15/16 , G06F17/30 , G06N5/04
摘要： PROBLEM TO BE SOLVED: To improve extendability, flexibility, stability and maintenability by obtaining system structure integrating environment for executing an object and environment for executing an agent and providing a means for executing the agent as the object. SOLUTION: Object executing environment 1 for executing a module mounting a function based on object-orientation and agent executing environment 2 for executing a module mounting a function based on agent-orientation are integrated. Then system structure enabling an object 3 on object executing environment 1 and an agent 4 on agent executing environment 2 to operate cooperatively is realized. Thereby a system developer mounts a function desired to operate stably by an object and a function changed frequently by an agent. The merit of an object-/agent-oriented paradigm is utilized for development like this.

3. 发明专利

JPH08147250A MUTUAL COUPLE NETWORK AND COMMUNICATING METHOD FOR THE SAME 失效
公开(公告)号：JPH08147250A
公开(公告)日：1996-06-07
申请号：JP24130295
申请日：1995-09-20
申请人： HITACHI LTD
发明人： AIMOTO TAKESHI , INAI HIDENORI , MURASE SHOICHI , TANABE SHINICHI , HASHIMOTO KAZUHIRO , IWAMOTO HIROSHI , OGURO HIROSHI , HAYASHI TAKEHISA , NAKAYAMA HARUYUKI
IPC分类号： G06F15/173 , G06F15/16
摘要： PURPOSE: To utilize the network, which is applied to the mutual couple network for parallel processing, also as a network for decentralized processing by providing a block avoiding function. CONSTITUTION: A computer node is constituted by coupling a processor 130, memory 150, network adapter 110 and I/O device to a system bus 140. The network adapter 110 performs packet communication with the other computer node 100 through a packet communication network 190 equipped with a hardware flow control function and is composed of a DMA control part 120, buffer 121 for reception, buffer 122 for transmission and network transmission/reception part 118. When a packet is received while a receiving command inside the memory 150 is idle, the DMA control part 120 receives the packet by turning on a reception enable signal for the packet communication network 190 and aborts the received packet by using the network adapter 110.

4. 发明专利

JPH06149601A ERROR CORRECTION AND DETECTION SYSTEM 失效
公开(公告)号：JPH06149601A
公开(公告)日：1994-05-31
申请号：JP30516492
申请日：1992-11-16
申请人： HITACHI LTD
发明人： HASHIMOTO KAZUHIRO
IPC分类号： G06F11/10 , G06F12/16
摘要： PURPOSE:To improve the reliability of the whole error correction system without adopting a new ECC code and increasing the number of storage elements by improving error detection at the time of regenerating information in an information storing/regenerating circuit and the error detecting capacity of a detection circuit by adding existing logic. CONSTITUTION:An error correction system consisting of an error correction code generating circuit 12, a storage device 13 and an error detection circuit 13 judges the existence of error generation in read data 33 and issues an error reporting signal 39. In this case, bit inverting circuits 14 to 17 corresponding to the number N of data bits, error detection circuits 18 to 22 and an error detection signal judging circuit 23 for receiving an error reporting signal group consisting of (N+1) error reporting signals and judging the existence of error detection are added.

5. 发明专利

JPH11154158A RETRIEVAL MESSAGE PROTOCOL CONVERSION GATEWAY SYSTEM 失效
公开(公告)号：JPH11154158A
公开(公告)日：1999-06-08
申请号：JP32078497
申请日：1997-11-21
申请人： HITACHI LTD , HITACHI SEIBU SOFTWARE LTD
发明人： OTAKA MASAHIRO , HASHIMOTO KAZUHIRO , AKISAWA MITSURU , TADA KATSUMI
IPC分类号： G06F12/00 , G06F17/30 , H04L12/28 , H04L12/46
摘要： PROBLEM TO BE SOLVED: To facilitate extension corresponding to a database different in an access interface by collectively capsuling processing depending on the access interface of database thereby separating them. SOLUTION: A database access means 7 executes the processing for accessing to the database by using a database access driver 8. At this time, the association of the database 4 to be accessed with the database access driver 8 is executed by reading an access driver list file 9. The access driver list file 9 holds information on a database name to be accessed and the database access driver 8. The data base access dries 8 is the dynamic link library of a function group for accessing to the database 4 and is loaded at every set of databases having the same access interfaces.

6. 发明专利

JPH0798617A CLOCK GENERATION CIRCUIT AND BUS SYSTEM 失效
公开(公告)号：JPH0798617A
公开(公告)日：1995-04-11
申请号：JP26119993
申请日：1993-10-19
申请人： HITACHI LTD
发明人： UMEMURA MASAYA , OGURA TOSHIHIKO , NAKAJIMA KENJI , HASHIMOTO KAZUHIRO , OKABE TOSHIHIRO
IPC分类号： G06F13/42 , G06F1/10 , G11C11/407
摘要： PURPOSE:To reduce the clock skew of a two phase clock. CONSTITUTION:One output of a phase adjustment mechanism reaches a normal phase load point through an equal delay circuit 7 and a normal phase distribution circuit 9. A phase at the normal phase load point is inputted to a phase comparator 3 and it is compared with a reference phase. Then, a comparison signal is outputted. A variable delay circuit 5 is controlled so that the phase at the normal phase load point is matched with the phase of the reference phase in the phase comparator 3 in accordance with the comparison signal. The other output of the phase adjustment mechanism 1 becomes the clock of a delay phase by the delay means 8 of a delay phase generation system, and it reaches a delay phase load point through a delay phase distribution circuit 10. The equal delay circuit 7 delays the signal of the normal phase so that circuit delays except for delay by the delay means 8 are adjusted between the normal phase and the delay phase in a path from the output of the phase comparator 3 to the normal phase load point and the delay phase load point. The phase at the normal load point almost matches with the phase of original oscillation. The equal delay circuit 7 reduces the clock skew of the delay phase against the normal phase.

7. 发明专利

JPH05108385A ERROR CORRECTION CIRCUIT DIAGNOSTIC SYSTEM 失效
公开(公告)号：JPH05108385A
公开(公告)日：1993-04-30
申请号：JP26594391
申请日：1991-10-15
申请人： HITACHI LTD
发明人： HASHIMOTO KAZUHIRO
IPC分类号： G06F11/08 , G06F12/16
摘要： PURPOSE:To improve the reliability of the entire error correction system by instantaneously dealing with a fault of the error correction circuit by executing the error correction and normality diagnosis of detection circuits at the time of reproducing information in an information storing reproducing device parallely with the normal operation. CONSTITUTION:The error correction system consisting of an error correction code generation circuit 12, a memory 13, an error generation discrimination circuit 14, and an error correction circuit 15 and capable of correcting errors of less than N bits is provided. In the case of the generation of a correctable error in read data 24, it is corrected to output normal data 28. In the case of the generation of uncorrectable error, an error detection signal 27 is issued. An error correction circuit check circuit 17 is added to this system. The number M of bits different in uncorrected error read data 24 and corrected error read data 28 from each other is obtd. often receiving both the read data, and the number M is compared with the set value to discriminate whether or not M N, an abnormality alarm signal is outputted.

8. 发明专利

JPH09265443A WWW GATEWAY SYSTEM 失效
公开(公告)号：JPH09265443A
公开(公告)日：1997-10-07
申请号：JP7586396
申请日：1996-03-29
申请人： HITACHI LTD
发明人： OTAKA MASAHIRO , HASHIMOTO KAZUHIRO , KOTANI JUNICHI , OKITA RYUTARO , ONO HIRONOBU , HAYASHI RYUSUKE , TADA KATSUMI
IPC分类号： G06F1/00 , G06F13/00 , G06F15/00 , G06F21/20
摘要： PROBLEM TO BE SOLVED: To succeed user authentication information between screens and to secure both security and convenience of a user by making a user management demon permanently stationed in a computer environment manage the user authentication information. SOLUTION: A user authentication information identifier is embedded in screen information and it is taken out by the parameter analysis means 9 of a WWW gateway main body part 12. By using it as a key, the user authentication information of the user is obtained from the user authentication information management means 17 of the user management demon 13 and a processing request based on it is performed to an existing system 6. Thus, the processing of the existing system 6 requiring user authentication is executed from this WWW gateway system 7. By embedding the user authentication information identifier to the screen information as the executed result of the processing, the user authentication information is succeeded for the next activation of the WWW gateway system 7.

9. 发明专利

JPH08221149A CLOCK PHASE ADJUSTMENT SYSTEM 失效
公开(公告)号：JPH08221149A
公开(公告)日：1996-08-30
申请号：JP3043295
申请日：1995-02-20
申请人： HITACHI LTD
发明人： HASHIMOTO KAZUHIRO
IPC分类号： G06F1/04 , G06F1/08 , G06F1/10
摘要： PURPOSE: To improve the reliability of the whole system by immediately specifying whether or not an abnormal range includes the clock phase adjusting device if a fault occurs and automatically taking measures. CONSTITUTION: A counter and a selector are added to clock signal supply sources 10 and 20, and a gate logic and retry request signal generating circuit 26 which decodes the phase relation among many polyphase clocks at 25 is added to a distribution destination; and those circuits decide the normalcy of a clock for operation and if the failure in phase adjusting operation is decided, a phase adjustment retry request signal 41 is fed back to the clock signal supply source 10 to make a phase adjustment operation retry request 41. The clock signal supply source 10 counts the retry request and selects the clock for operation without performing the phase adjusting operation when a prescribed value is reached, and at the distribution destination, the system down owing to the abnormality of the clock phase is avoided by by-passing a variable delay circuit 21.

10. 发明专利

JPH0644074A KNOWLEDGE BASE, INFERENCE METHOD AND DESCRIPTIVE TEXT PREPARATION METHOD 失效
公开(公告)号：JPH0644074A
公开(公告)日：1994-02-18
申请号：JP22713091
申请日：1991-09-06
申请人： HITACHI LTD , HITACHI SEIBU SOFTWARE KK
发明人： HASHIMOTO KAZUHIRO , YASUNOBU CHIZUKO
IPC分类号： G06F9/44 , G06F17/30 , G06N5/04 , G06F15/40
摘要： PURPOSE:To facilitate the guarantee of the consistency of a knowledge base by constituting knowledge with network structure composed of plural nodes indicating event information and links by which the causal relationship of the respective nodes is defined. CONSTITUTION:Hypotheses (the links L01 and L02 and the nodes 401 and 402,) hypothesis candidates (the link L03 and the node 403) and the node 407 which caused contention are related and stored. Further, when the node Na which is turned to the hypothesis candidate (a) when the hypothesis A is selected by the node Ni is stored as the node which caused the contention, the hypothesis B for the node Na is changed to one of the hypothesis candidates (b). Then, as the result of changing the hypothesis candidate b1 to the hypothesis, when the link from the node Na to the node Ni is changed to an input link for supplying the data of a value same as the hypothesis A, the hypothesis candidate b1 is defined as the hypothesis for the node Na. Further, the node (a) is added to the hypothesis A, the data are defined based on the selected hypothesis and the evaluated value of the link is determined.

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