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1. 发明专利

JPH10260902A INFORMATION PROTECTING METHOD 失效
公开(公告)号：JPH10260902A
公开(公告)日：1998-09-29
申请号：JP6507397
申请日：1997-03-18
申请人： FUJITSU LTD
发明人： YOSHIMOTO SHINICHI
IPC分类号： G06F12/14 , G06F21/24 , H04L9/16
摘要： PROBLEM TO BE SOLVED: To make it difficult to forge information. SOLUTION: A recording medium which is given a specific recognition symbol characteristic is provided with a 1st area where information and its update history are recorded and a 2nd area where the update history is recorded and only when the update history recorded in the 1st area matches with the update history recorded in the 2nd area, the information is allowed to be updated. For this constitution, the 2nd area may be provided on another recording medium. Or a cipher key obtained from the specific recognition symbol characteristic of the recording medium is used to cipher and record the information on the recording medium and the cipher key is changed for every time the information is updated.

2. 发明专利

JPH09134259A MEDIUM CONTROLLER PROVIDED WITH SECURITY FUNCTION AND MEDIUM CONTROL METHOD 失效
公开(公告)号：JPH09134259A
公开(公告)日：1997-05-20
申请号：JP28893195
申请日：1995-11-07
申请人： FUJITSU LTD
发明人： KOTANI MASATAKE , MURAKAMI KEIICHI , YOSHIMOTO SHINICHI , MASUDA TATSURO , KANEMOTO KOICHI , YOSHIOKA MAKOTO , FUJIWARA MASAO
IPC分类号： G06F3/06 , G06F9/06 , G06F21/22
摘要： PROBLEM TO BE SOLVED: To prevent illegal access to a storage medium which can be removed at reasonable cost. SOLUTION: The processing part 13 of an external storage device 12 is provided with RAM(random access memory) 24, and the content is loadable. CPU(central processing unit) 22 executes a processing on the transfer of data between PC (personal computer) 11 and the medium 15 by using a program loaded on RAM 24 through an interface 21 and a read/write part 23. The propriety of access to the medium is judged and ciphered data 17 is decoded. The content is flexibly and efficiently protected by rewriting the content of RAM 24.

3. 发明专利

JP2006268246A Information processor 审中-公开
标题翻译：信息处理器
公开(公告)号：JP2006268246A
公开(公告)日：2006-10-05
申请号：JP2005083302
申请日：2005-03-23
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YOSHIMOTO SHINICHI
IPC分类号： G06F1/04
摘要： PROBLEM TO BE SOLVED: To realize selection of the working clock frequency, such that the load on a CPU conforms more to CPU performance after modification, with regard to modification of the operation clock frequency of a processor, in response to the load of the CPU, such as CPU usage rate. SOLUTION: An operation clock table storing correspondences between operation clock frequencies and CPU loads has a plurality of sections per operation clock frequency, and each section is segmented by thresholds. Each threshold has a value corresponding to its operation clock. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了实现工作时钟频率的选择，使得CPU上的负载在修改之后更符合CPU性能，关于处理器的操作时钟频率的修改，响应于负载的CPU，如CPU使用率。
解决方案：存储操作时钟频率和CPU负载之间对应关系的操作时钟表具有每个操作时钟频率的多个部分，每个部分被阈值分段。每个阈值具有对应于其操作时钟的值。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2002278658A INFORMATION PROCESSOR 失效
公开(公告)号：JP2002278658A
公开(公告)日：2002-09-27
申请号：JP2001078689
申请日：2001-03-19
申请人： FUJITSU LTD
发明人： YOSHIMOTO SHINICHI
IPC分类号： G06F1/32 , G06T13/00 , G06T13/80 , G09G5/00
摘要： PROBLEM TO BE SOLVED: To fulfill the request of a user related with display quality by changing the setting of the display quality corresponding to the operating state of an information processor, and to perform proper setting corresponding to the operating state. SOLUTION: Display quality is decided by a display quality deciding means 231 based on AC/DC connection information, residual battery information, CPU activity ratio information, and a residual time for achieving a requested operating time or the like obtained from a power source connection information acquiring means 151, a residual battery acquiring means 161, a CPU activity ratio acquiring means 171, and a requested operating time accepting means 241 or the like. Then, the display quality is changed by a display quality changing means 233, and picture information is displayed at a display device 661 by a display means 235 based on the display quality.

5. 发明专利

JPH10320193A INFORMATION MANAGING METHOD AND RECORDING MEDIUM 失效
公开(公告)号：JPH10320193A
公开(公告)日：1998-12-04
申请号：JP26462997
申请日：1997-09-29
申请人： FUJITSU LTD
发明人： KOTANI MASATAKE , YOSHIOKA MAKOTO , MURAKAMI KEIICHI , HIRANO HIDEYUKI , HAYASHI TAKEHIKO , YOSHIMOTO SHINICHI
IPC分类号： G06F21/22 , G11B20/00 , G06F9/06
摘要： PROBLEM TO BE SOLVED: To easily perform information management and to facilitate application to various fields such as copyright protection and security by giving unique identifiers (unique ID) to individual authoring programs. SOLUTION: When a manufacture records an authoring program 101 on a CD-ROM 1, a program 102 is also recorded in an electronically readable state at the same time. When a user having obtained the CD-ROM 1 installs the authoring program 101 in his or her personal computer PC, the program ID 102 is electronically read out and installed in the personal computer PC simultaneously with the authoring program 101. Then, an authoring program 121 and a program ID 122 are copied and recorded on a hard disk 12. When the program is copied to another computer, the illegal act is found by checking the program ID 122.

6. 发明专利

JP2001331244A INFORMATION EQUIPMENT, POWER SAVING MODE SWITCHING METHOD AND RECORDING MEDIUM HAVING POWER SAVING MODE SWITCHING PROGRAM STORED THEREON 失效
公开(公告)号：JP2001331244A
公开(公告)日：2001-11-30
申请号：JP2000147907
申请日：2000-05-19
申请人： FUJITSU LTD
发明人： YAMADA HIROSHI , YOSHIMOTO SHINICHI , HARA YASUSHI , SHINAMI AKIRA
IPC分类号： G06F1/32 , G11B19/00 , G11B19/02
摘要： PROBLEM TO BE SOLVED: To efficiently suppress peak power generation with respect to portable information equipment and a power saving mode switching method and a recording medium for storing a power saving mode switching program. SOLUTION: In information equipment including a constituting element 1 such as a processor and a constituting element 2 such as a magnetic disk device, whether a peak power generation condition or a peak power end condition is set is judged on the basis of access information to the constituting element 2, and a power mode change request is issued to a power mode changing means 4. A normal power mode is switched to a power saving mode in which reducing operation voltage and clock frequencies are reduced at the time of detecting the peak power generation condition, and the power saving mode is switched to the normal power mode at the time of detecting the peak power end condition by the power mode changing means 4 for the constituting element 1 such as the processor.

7. 发明专利

JPH11259366A DEVICE AND METHOD FOR PROTECTING DATA IN ELECTRONIC DATA EXCHANGE SYSTEM, AND STORAGE MEDIUM RECORDED WITH PROGRAM FOR REALIZING THE METHOD 失效
公开(公告)号：JPH11259366A
公开(公告)日：1999-09-24
申请号：JP5487098
申请日：1998-03-06
申请人： FUJITSU LTD
发明人： HAYASHI TAKEHIKO , HIRANO HIDEYUKI , YOSHIMOTO SHINICHI
IPC分类号： G06F12/14 , G06F12/00 , G06F13/00 , G06F21/24
摘要： PROBLEM TO BE SOLVED: To provide the device and method for protecting data by which precise security management is enabled in accordance with the right or position of a user or the secrecy of contents in an EDI system of a server system placed on an Internet. SOLUTION: A contents server 3 is provided with a managing information storage part 303 for storing a user managing database for managing the security level or the like of a user and a contents managing database for managing the security level or the like of contents. Then, a mechanism is provided for permitting the utilization of contents only for a user satisfying the prescribed conditions of the security level by using a dedicated secure API.

8. 发明专利

JPH11237837A STORAGE DEVICE PROVIDED WITH GENERATING FUNCTION FOR GENUS OF RANDOM NUMBER 失效
公开(公告)号：JPH11237837A
公开(公告)日：1999-08-31
申请号：JP3923198
申请日：1998-02-20
申请人： FUJITSU LTD
发明人： YOSHIMOTO SHINICHI
IPC分类号： G06F7/58 , G09C1/00 , G11B20/10
摘要： PROBLEM TO BE SOLVED: To provide a storage device to which a function capable of generating the genus of a random number at random in comparatively simple configuration is added. SOLUTION: This device is provided with a detecting means 1 for detecting a new event concerning the storage device, counter 3 to be started, stopped or initialized based on that detected information, and interface 4 for outputting the current value of the counter 3 as the genus of the random number with the reception of a request to the genus of the random number. For the example of the new event concerning the storage device, the activation of the storage device, the mount of a storage medium to the storage device, the ejection from the storage device or the start of data read or write can be utilized. As the counter 3, a clock counter to increase or decrease a value in a prescribed cycle or an event counter to increase or decrease a value each time an event non- periodically occurs is available.

9. 发明专利

JPH10283270A REPRODUCING PERMISSION METHOD, RECORDING METHOD, AND RECORDING MEDIUM 失效
公开(公告)号：JPH10283270A
公开(公告)日：1998-10-23
申请号：JP9113197
申请日：1997-04-09
申请人： FUJITSU LTD
发明人： YOSHIMOTO SHINICHI
IPC分类号： G06F12/14 , G06F9/06 , G06F21/22 , G06F21/24 , G11B20/10 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To provide a reproducing permission method which protects the copyright of information recorded in a recording medium without raising the production cost of the recording medium. SOLUTION: Information (product constitution ID) peculiar to recording information (contents P) recorded in a recording medium 10 is used to encipher a first cipher key K to first encryption information (consent code L1), and the first cipher key is used to encipher recording information (contents P) to first encryption recording information (contents C), and peculiar information (product constitution ID) is recorded in a rewrite disable disable area on the recording medium 10, and first encryption information (consent code L1) and first encryption recording information (contents C) are recorded in the rewritable area on the recording medium 10; and at the time of reproducing, read-out peculiar information (product constitution ID) is used to decode first encryption information (consent code L1) to the first cipher key K, and the decoded first cipher key is used to decode first encryption recording information (contents C) to recording information (contents P).

10. 发明专利

JPH10143363A SOFTWARE LICENSE GRANTING DEVICE 失效
公开(公告)号：JPH10143363A
公开(公告)日：1998-05-29
申请号：JP30220596
申请日：1996-11-13
申请人： FUJITSU LTD
发明人： HAYASHI TAKEHIKO , HIRANO HIDEYUKI , HARAKI TAKASUKE , YOSHIMOTO SHINICHI
IPC分类号： G06F21/22 , G06F9/06
摘要： PROBLEM TO BE SOLVED: To provide a software license granting device provided with a reselling function of software. SOLUTION: Users A and B try to purchase and sell a software license through license information and bulletin board information, etc., and apply to a center 3 an effect that the agreement is reached when it is reached, and the center 3 reissues a license by giving the users A, B key information KB', KA' to software A, B which are suitable for terminals 1, 2 and are mutually exchanged.

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