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11. 发明专利

JPH10283262A FILE SYSTEM AND PROGRAM RECORDING MEDIUM 失效
公开(公告)号：JPH10283262A
公开(公告)日：1998-10-23
申请号：JP8848597
申请日：1997-04-07
申请人： FUJITSU LTD
发明人： KAMATA JUN , ONO KOSHIO
IPC分类号： G06F12/14 , G06F12/00 , G06F21/24 , G09C1/00
摘要： PROBLEM TO BE SOLVED: To provide a file system which manages a main file in such form that alteration can be detected. SOLUTION: If a file write request from an application program execution system 11 which executes an application program is new one, a file system 12 stores a main file 21 including data, whose write is requested, in a storage device 13 and generates an authentication file 22 including a signature (check sum), the generation date of the main file 21, generator information, etc., generated from contents of the main file 21 and stores the generated authentication file 22 in the storage device 13 corresponding to the main file 21. When the existing main file 21 is updated, the signature, the update date, updater information, etc., of the main file 21 after update are added to the authentication file 22.

12. 发明专利

JPH0696031A SHARED RESOURCE CONTROL SYSTEM 失效
公开(公告)号：JPH0696031A
公开(公告)日：1994-04-08
申请号：JP24224492
申请日：1992-09-10
申请人： FUJITSU LTD
发明人： KAMATA JUN , ONO KOSHIO
IPC分类号： G06F9/50 , G06F15/16 , G06F15/177 , G06F15/18 , G06N99/00
摘要： PURPOSE:To enable efficient control over shared resources by dynamically determining and changing control systems during the operation of a system. CONSTITUTION:The shared resources 1 are decentralized to plural computers. A resource control part 2 accesses to the shared resources 1 at a request from a program (process) which operates on each computer, performs some process, and sends the result back to the program. Further, the resource control part 2 sends access characteristics such as the frequency and locality of the access to a history managing part 3 and dynamically changes the control system of the shared resources 1 by an instruction from a system determination part 5. The history managing part 3 gathers and holds characteristics of the access to the shared resources by respective resource control parts 2. A prediction part 4 predicts future access characteristics basing on the history that the history control part 3 has. The system determination part 5 determines an optimum shared resource control system according to the prediction result of the prediction part 4 and sends instructions to the resource control parts 2.

13. 发明专利

JP2002109255A DEVICE AND METHOD FOR CONTROLLING CONTENTS UTILIZATION, CONTENTS UTILIZATION CONTROL PROGRAM AND COMPUTER READABLE RECORDING MEDIUM RECORDED WITH CONTENTS UTILIZATION CONTROL PROGRAM 审中-公开
公开(公告)号：JP2002109255A
公开(公告)日：2002-04-12
申请号：JP2001197224
申请日：2001-06-28
申请人： FUJITSU LTD
发明人： NODA TOSHITATSU , KOTANI MASATAKE , HAYASHI TAKEHIKO , KAMATA JUN
IPC分类号： G06F12/14 , G06F21/10 , G06F21/62 , G06Q10/00 , G06Q30/04 , G06Q30/06 , G06Q50/00 , G06Q50/10 , G10K15/02 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To improve flexibility in the utilization of contents and to easily manage charging concerning the utilization of contents. SOLUTION: This device is provided with a means for inputting contents 10 with control module composed of contents 12 and a control module 11 and a license 20 with control module composed of a control module 21, which is composed of utilization allowance information, and a license 22 and the control module 11 and the control module 21 perform control concerning the utilization of contents in mutual cooperation.

14. 发明专利

JPH11149413A FILE MANAGEMENT SYSTEM PROVIDED WITH ALTERATION PREVENTING AND DETECTING FUNCTION 失效
公开(公告)号：JPH11149413A
公开(公告)日：1999-06-02
申请号：JP31401797
申请日：1997-11-14
申请人： FUJITSU LTD
发明人： KAMATA JUN , KURODA YASUTSUGU , ONO KOSHIO
IPC分类号： G06F12/14 , G06F1/00 , G06F12/00 , G06F21/00 , G06F21/24
摘要： PROBLEM TO BE SOLVED: To prevent an authenticator and an access log, etc., associated with a data file from being altered by protecting a secure area by means of the firmware of a storage device and also placing only the authenticating element generated from a sub-file associated with the data file in the secure area. SOLUTION: Mutual authenticating parts 11 and 21 generate a common access permission key after mutual authentication between a computer 1 and the storage device 2 and give the generated access permission key to access permission key storage part 12 and 22 so as to store them. A file access part 13 transmits an access request and the access permission key to the secure area access part 24 of the storage device 2 at the time of performing access to the secure area 31 in a medium 3 where access is performed through the storage device 2. An access permission key discriminating part 23 discriminates whether the access permission key being the same as this access permission key exists in the access permission key storage part 22 or not and a secure area access part 24 performs access to the secure area 31 if it is present.

15. 发明专利

JP2000122816A FILE MANAGING DEVICE AND MANAGING METHOD 失效
公开(公告)号：JP2000122816A
公开(公告)日：2000-04-28
申请号：JP29774798
申请日：1998-10-20
申请人： FUJITSU LTD
发明人： KAMATA JUN , ONO KOSHIO , KURODA YASUTSUGU
IPC分类号： G06F3/06 , G06F12/00 , G06F12/08 , G11B27/00 , G11B27/10 , G11B27/32
摘要： PROBLEM TO BE SOLVED: To make data access efficient by performing control so that portable storage media are taken out while data, a file, and a main body for file access are stored or only the file main body is taken out without including the data. SOLUTION: Storage media having different access performance constitute one logical volume and a standby logical volume containing the same data as the data in the logical volume is further provided so as to multiply the data in the logical volume; and a portable storage media taking-out control means 3 is able to perform control corresponding to a portable storage media taking-out request in the standby logical volume. In this case, the logical volume and standby logical volume can be equipped with logical volume management information for mutually recognizing each other as data-multiplied opposite volumes.

16. 发明专利

JP2002353960A CODE PERFORMING DEVICE AND CODE DISTRIBUTING METHOD 失效
公开(公告)号：JP2002353960A
公开(公告)日：2002-12-06
申请号：JP2001162271
申请日：2001-05-30
申请人： FUJITSU LTD
发明人： KAMATA JUN , KOTANI MASATAKE
IPC分类号： G06F12/14 , G06F1/00 , G06F9/318 , G06F9/46 , G06F15/16 , G06F21/00 , G06F21/22 , G06F21/24 , H04L9/08 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To efficiently perform a code applied with an electronic signature and enciphering, without having to significantly change the existing OS. SOLUTION: A hetero-multiprocessor system provided with a secure processor 24 and an ordinary processor 22 is constructed, and a secure task and a non- secure task are distributed to the respective processors. The enciphered code of the secure task is stored in a secure memory 23 and the secure memory 23 verifies the signature with the public key of an authentication station and informs whether or not the enciphered code is valid to the secure processor 24. The secure processor 24 fetches an enciphering instruction from the secure memory 23, decodes and performs that instruction.

17. 发明专利

JPH0954699A PROCESS SCHEDULER OF COMPUTER 失效
公开(公告)号：JPH0954699A
公开(公告)日：1997-02-25
申请号：JP20542495
申请日：1995-08-11
申请人： FUJITSU LTD
发明人： KAMATA JUN , YUHARA MASANOBU , ONO KOSHIO
IPC分类号： G06F9/46 , G06F9/48
摘要： PROBLEM TO BE SOLVED: To guarantee the CPU use in a user process that a multimedia system requires while performing scheduling by a user program by making use of a scheduler that an OS supports. SOLUTION: This process scheduler of the computer is supported by the OS 14 to fixedly set priority for a plurality of processes to be scheduled object so that the priority can be changed through specification from a user process, and assign a CPU from a high-priority process among executable processes to perform operation. A user level process scheduler 10 is provided for this fixed priority process scheduler, i.e., in a process scheduler space of a real-time class 28. The user level process scheduler 10 has top priority 159 of the real time class 28 and schedules a group 11 of other user processes having lower priority than the top priority 159 to place them in operation. Namely, CPU assignment is decided and the OS 14 is requested to perform the operations of the user processes.

18. 发明专利

JP2000181803A ELECTRONIC DATA KEEPING DEVICE WITH KEY MANAGEMENT FUNCTION AND METHOD THEREFOR 失效
公开(公告)号：JP2000181803A
公开(公告)日：2000-06-30
申请号：JP36034598
申请日：1998-12-18
申请人： FUJITSU LTD
发明人： KURODA YASUTSUGU , KAMATA JUN , IWASE SHIYOUKO , NODA TOSHITATSU , ONO KOSHIO
IPC分类号： G06F12/14 , G06F21/24 , G09C1/00 , H04L9/08
摘要： PROBLEM TO BE SOLVED: To realize key management corresponding to environment and also to secure safety in electronic data by executing communication through the use of a common key being adaptable to both local and global environments. SOLUTION: An electronic data keeping device is provided with a means 2 for managing an individual key being intrinsic to a self-keeping device and also the common key shared with another keeping device and with a means 3 for executing a ciphering processing through the use of the individual key in electronic data which is kept in the self device and for executing the ciphering processing or inspecting data through the use of the common key in electronic data which is exchanged with another device.

19. 发明专利

JPH11143361A ELECTRONIC DATA STORING DEVICE, STORAGE SYSTEM AND STORING METHOD 失效
公开(公告)号：JPH11143361A
公开(公告)日：1999-05-28
申请号：JP31387897
申请日：1997-11-14
申请人： FUJITSU LTD
发明人： KURODA YASUTSUGU , KAMATA JUN , ONO KOSHIO
IPC分类号： G06F12/14 , G06F21/24 , G09C1/00 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To safely store electronic data in a format capable of protecting the data from being falsified and erased and maintaining the legal evidence capacity of the data. SOLUTION: An electronic data storing device 1 is provided with a means 2 for storing electronic data, a means 3 for preparing certification information for detecting the existence of falsification for the electronic data to be stored and a means 4 for attaching and outputting the certification information when the electronic data are outputted to the outside. After authorizing the electronic data through an authorizing device 5 by judging that its specification satisfies a determined condition or executing mutual certification between both electronic data storing devices 1, the device 1 stores the data.

20. 发明专利

JPH10283190A STORAGE MEDIUM DRIVING DEVICE, STORAGE MEDIUM AND DATA PROTECTION METHOD 失效
公开(公告)号：JPH10283190A
公开(公告)日：1998-10-23
申请号：JP9113297
申请日：1997-04-09
申请人： FUJITSU LTD
发明人： KOTANI MASATAKE , TORII NAOYA , KAMATA JUN
IPC分类号： G06F12/14 , G06F9/445 , G06F21/00 , G06F21/22 , G06F21/24 , G11B20/00 , G06F9/06
摘要： PROBLEM TO BE SOLVED: To execute various securities without raising the manufacturing cost by searching a control program for executing a processing from a mounted storage medium at the time of judging that the control program for executing the processing is not incorporated in a resident control program. SOLUTION: A personal computer 5 interprets a processing request 4 by the program of its own application and sends it to the processing part 8 of an MO driving device 2. When the processing request 4 is reported, the processing part 8 uses a resident firmware 9 resident in the resident firmware area 10 of the MO driving device 2 and judges whether or not a firmware for executing the processing is incorporated in the resident firmware 9. Then, at the time of judging that it is not incorporated, a search for searching the firmware for executing the processing from the ciphered firmwares A, B, C... stored in a set MO medium 1 is performed.

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