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1. 发明专利

JP2002077186A INTER-DEVICE CONNECTION METHOD, MULTIPLEXER AND SWITCHING DEVICE THEREFOR 失效
公开(公告)号：JP2002077186A
公开(公告)日：2002-03-15
申请号：JP2000260314
申请日：2000-08-30
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： SATO KEIZO , HASHIMOTO TETSUO , KAWANABE TOSHIHIRO , NOZATO MASAYA , IINO TAKAYUKI
IPC分类号： H04J3/00 , H04J3/14 , H04L12/28 , H04L12/46
摘要： PROBLEM TO BE SOLVED: To automatically switch to another system device at the time of fault generation and to automatically return to the original one at the time of fault restoration in multiple system devices. SOLUTION: In a connection switching device 2, by executing the state monitoring of the multiple system devices 3, 4 and 5 to be a connection destination and also storing the priority of connections to the individual devices, the connectable device of high priority is discriminated corresponding to the fault generation and restoration in the multiple system devices 3, 4 and 5, and the connection destination is automatically switched to the device.

2. 发明专利

JP2001194992A CIPHER COMPUTING DEVICE AND AUTOMATIC CHARGE COLLECTING SYSTEM USING THE DEVICE 失效
公开(公告)号：JP2001194992A
公开(公告)日：2001-07-19
申请号：JP2000005775
申请日：2000-01-06
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： SHIMIZU YASUO , KAWANABE TOSHIHIRO , KAYUKAWA SATORU , NOZATO MASAYA , IINO TAKAYUKI
IPC分类号： G09C1/00
摘要： PROBLEM TO BE SOLVED: To make freely distributable computational resources by determining the number of elements of a prior computational table independent of the bit length of a multiple determined from a system request. SOLUTION: When a multiple K (n bits) and a number w of elements are given, a bit extending section 2 obtains a minimum integer m which is an integer not less than n and is a multiple of w. When m is >n, an extending multiple K' is obtained by adding (m-n) bits of a value '0' to the upper portion of the multiple K. Then, in a prior computing table 1, 2W prior computational data are prepared for the number of the elements, the table is referred by the address generated from the coefficients of the multiple K', the data are taken out and a power multiple computation is conducted by a computation section 5.

3. 发明专利

JPH1141653A RADIO COMMUNICATION CONTROL SYSTEM 失效
公开(公告)号：JPH1141653A
公开(公告)日：1999-02-12
申请号：JP19146997
申请日：1997-07-16
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： NOZATO MASAYA , KAYUKAWA SATORU , HIROKI TAKESHI , IINO TAKAYUKI , TAKAHASHI KAZUNORI , TAKAGI TERUO
IPC分类号： G08C17/00 , G07B15/00 , G08C17/02 , H04B1/59 , H04W4/04 , H04W36/32 , H04W64/00 , H04W72/04 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To attain efficient radio communication in a system where the toll of a highway or the like is collected automatically through the use of a radio wave. SOLUTION: This system is provided with plural stationary antennas 10, 11 corresponding to a communication zone forming plural communication zones 20, 21 in a moving direction of a mobile body 1, position detection means 30, 31 that detect that the mobile body 1 specified in the communication zones 20, 21 steps out from the communication zone, and a means that stops assignment of the communication frame to assign the communication zone with respect to the mobile body whose step-out is detected by the position detection means 30, 31. Since a communication frame is not assigned to the mobile body which does not exist in the communication zone, the efficient communication is attained.

4. 发明专利

JP2001076198A PASSING VEHICLE TIME MANAGEMENT SYSTEM 失效
公开(公告)号：JP2001076198A
公开(公告)日：2001-03-23
申请号：JP25249499
申请日：1999-09-07
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： KAWANABE TOSHIHIRO , KAYUKAWA SATORU , NOZATO MASAYA , SHIMIZU YASUO , IINO TAKAYUKI
IPC分类号： H04B7/00 , G07B15/00 , G08G1/017 , G08G1/09
摘要： PROBLEM TO BE SOLVED: To prevent communication from being jammed depending upon the travel state of a vehicle. SOLUTION: When the vehicle 28 enters a toll gate and a vehicle detector 16 detects the entry of the vehicle 28, a communication link request is outputted from a fixed station 10 to the mobile station 30 of the vehicle 28 through an antenna 26 and the fixed station 10 and mobile station 30 begin to send and receive information regarding toll collection. The mobile station 30 and fixed station 10 are inhibited from communicating for a certain release timer time after the communication ends and the mobile station 30 receives the communication link request from the fixed station the release timer time later to become able to communicate. The fixed station 10 measures the passage time needed for the vehicle 28 to travel between a vehicle detector 16 and a vehicle detector 24 and the release timer time is updated according to the passage times of each of vehicles.

5. 发明专利

JP2000183867A CIPHERING PROCESSOR 失效
公开(公告)号：JP2000183867A
公开(公告)日：2000-06-30
申请号：JP35627498
申请日：1998-12-15
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： NOZATO MASAYA , KAWANABE TOSHIHIRO , KAYUKAWA SATORU , IINO TAKAYUKI
IPC分类号： H04L9/10 , H04W12/12 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To realize a high-security ciphering processor which prevent information on a cipher key stored in communication equipment from leaking when the communication equipment is stolen and does not require the addition of a device such as a mischief detection/countermeasure device with a zero-reset circuit. SOLUTION: The cipher key used for a communication with other devices is stored in a volatile storage part 2 and a key for downloading the cipher key stored in the volatile storage part 2 from a key center and the identification number of a fixed station are stored in a nonvolatile storage part 3. The cipher key stored in the volatile storage part 3 is erased by a break of power supply due to a steal to prevent the information on the cipher key from leaking, and the device such as the mischief detection/countermeasure device with the zero- reset circuit becomes unnecessary.

6. 发明专利

JPH11274999A Mobile communication method and mobile communication system 失效
标题翻译：移动通信方法和移动通信系统
公开(公告)号：JPH11274999A
公开(公告)日：1999-10-08
申请号：JP7690998
申请日：1998-03-25
申请人： Hitachi Inf & Control Syst Ltd , Hitachi Ltd , 株式会社日立情報制御システム , 株式会社日立製作所
发明人： NOZATO MASAYA , KAYUKAWA SATORU , IINO TAKAYUKI , ORIMO MASAYUKI , FUKUZAWA YASUKO , ISHIDA SHUICHI
IPC分类号： H04L9/16 , G07B15/00 , H04B7/26 , H04L9/08 , H04W4/04 , H04W12/04
摘要： PROBLEM TO BE SOLVED: To provide a mobile communication system where the start of communication between a mobile station and a stationary station is quickened and a key in use is quickly and securely switched against an illegal use of an encryption key or the like. SOLUTION: Common keys with plural versions are available for encryption communication between a stationary station and plural mobile stations, each mobile station 1 manages a sole key version and its symmetrical key (ordinary key and emergency key) in a form of key information DB 6, and the stationary station 2 manages plural key versions and their symmetrical keys in a way of key information management DB 12. The mobile station 1 sends a key version of its own station on a communication request, the stationary station 2 discriminates whether or nor a usual key of the received key version is effectively supported and replies the version and the key application (normal), when it is effectively supported. When the usual key is invalid, the stationary station 2 replies the version and the key application (urgent). The mobile station 1 discriminates the key version and the key application replied from the stationary station 2 and switches the key used by its own station into the urgent key, even if the key version is the same when the key application is the 'urgent key'.
摘要翻译：要解决的问题：为了提供移动站和固定站之间的通信开始加快的移动通信系统，并且正在使用的密钥与非法使用加密密钥等进行快速和安全的切换。解决方案：具有多个版本的公共密钥可用于固定站和多个移动站之间的加密通信，每个移动台1以密钥信息DB 6的形式管理唯一密钥版本及其对称密钥（普通密钥和紧急密钥）而固定站2以密钥信息管理DB12的方式管理多个密钥版本及其对称密钥。移动站1在通信请求下发送其本站的密钥版本，固定站2判别是否通常有效支持接收到的密钥版本的密钥，并且有效地支持版本和密钥应用（正常）。当通常的密钥无效时，固定站2回复版本和密钥应用（紧急）。移动站1鉴别从固定站2回复的密钥版本和密钥应用，并且将密钥应用是“紧急密钥”的密钥版本相同时，将其本站使用的密钥切换为紧急密钥，。

7. 发明专利

JPH11205308A AUTHENTICATION METHOD AND INFORMATION SYSTEM 失效
公开(公告)号：JPH11205308A
公开(公告)日：1999-07-30
申请号：JP30698098
申请日：1998-10-28
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST LTD
发明人： FUKUZAWA YASUKO , ORIMO MASAYUKI , ISHIDA SHUICHI , IINO TAKAYUKI , NOZATO MASAYA , SHIMIZU YASUO
IPC分类号： G07B15/00 , G09C1/00 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To authenticate legality of an ID card that is used for communication via an onboard device with a road side device. SOLUTION: An IC card 201 and an onboard device 211 mutually authenticate with each other in advance and the IC card 201 transfers authentication information for a road side device 211 of the IC card 201 from the IC card 201 to the onboard device 211. When the communication between the onboard device 211 and the road side 221 is started, the onboard device 211 and the road side device 221 at an exit tollgate are mutually authenticated and the onboard device 211 transfers the authentication information for the road side device in the IC card 201 to the road side device 221 and the road side device 221 uses the transferred authentication information to authenticate the IC card 201.

8. 发明专利

JP2005157410A System and method for supporting road management job 有权
标题翻译：支持道路管理工作的制度与方法
公开(公告)号：JP2005157410A
公开(公告)日：2005-06-16
申请号：JP2003319918
申请日：2003-09-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KITAMURA TADAAKI , TAKAHASHI KAZUNORI , SATO YOSHITO , SHIMA TAKESHI , KANI AKIO , TOYAMA ATSUYA , IINO TAKAYUKI , KONDO TETSUHIRO
IPC分类号： G01C21/00 , G01C21/26 , G06Q10/00 , G06Q50/00 , G06Q50/10 , G08G1/09 , G08G1/13 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To efficiently collect road information such as an accident from general people by using a portable telephone set with GPS or a communication-type car navigation system.
SOLUTION: When a user of a traveling vehicle detects occurrence of an event such as the accident or a fallen object, the user transmits positional information by GPS and information on the accident or the like to an information collection center 2 by using the portable telephone set with GPS 1 or the communication-type car navigation system. The information collection center 2 analyzes received data, estimates a position and directs a patrol vehicle 3 to take a countermeasure. When transmitted information is correct as a result of the countermeasure, a procedure of acknowledgement is performed from the users who have transmitted the information to a selected user. Thus, much information can speedily be collected, correspondence to the accident and that to the fallen object can speedily be performed and secondary disasters can also be prevented.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过使用具有GPS的便携式电话机或通信型汽车导航系统来有效地收集来自普通人的道路信息，例如事故。解决方案：当行驶车辆的用户检测到事故或坠落物体的事件的发生时，用户通过GPS将位置信息和关于事故的信息等发送到信息收集中心2，使用带GPS 1的便携式电话机或通信型汽车导航系统。信息收集中心2分析接收到的数据，估计位置并指示巡逻车3采取对策。当作为对策的结果发送信息是正确的时，从已经向所选用户发送信息的用户执行确认过程。因此，可以快速地收集许多信息，可以快速地执行对事故的对应和对坠落物体的对应，并且还可以防止二次灾难。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005115687A Road maintenance support system 审中-公开
标题翻译：道路维护支持系统
公开(公告)号：JP2005115687A
公开(公告)日：2005-04-28
申请号：JP2003349794
申请日：2003-10-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMA TAKESHI , TAKAHASHI KAZUNORI , KITAMURA TADAAKI , SATO YOSHITO , TOYAMA ATSUYA , KANI AKIO , IINO TAKAYUKI , KONDO TETSUHIRO
IPC分类号： G06Q50/08 , G06Q50/00 , G06Q50/10 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To form an appropriate road repair plan to efficiently repair parts to be repaired with appropriate timing. SOLUTION: A repair/inspection plan forming device 20 forms an inspection plan, based on the previous inspection history of a recording device 26 and sends the plan to an inspection terminal 2. Based on the inspection plan, the inspection terminal 2 inspects a road using a camera 4, a microphone 5, an acoustic sensor 6 and a vibration sensor 7, to see the state of its deterioration. The result of the inspection is sent to the repair/inspection plan forming device 20. The repair/inspection plan forming device 20 classifies the degrees of road deterioration, based on the inspection result, anticipates the future tendency of the road to deteriorate, and presents a plurality of repair plans about parts to be repaired, time of repair, and the scope of repair. A road manager finally selects the repair plan. Rules about construction processes, materials and equipment, and allocation of personnel for achieving the repair plan selected are extracted from a database and to the road manager is given navigation for the implementation of road repairs. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：形成适当的道路修理计划，以适当的时机有效地修理待修理的零件。解决方案：修理/检验计划形成装置20基于记录装置26的先前检查历史形成检查计划，并将计划发送到检查终端2.根据检查计划，检查终端2检查使用照相机4的道路，麦克风5，声音传感器6和振动传感器7，以看到其劣化的状态。检查结果被发送到维修/检查计划形成装置20.修理/检查计划形成装置20基于检查结果对道路恶化的程度进行分类，预测道路的未来趋势恶化，并且呈现关于要修理的部件，修理时间和维修范围的多个维修计划。道路经理终于选择修理计划。关于施工过程，材料和设备的规定，以及为实现所选修理计划的人员配置，从数据库中提取，并向道路经理提供用于实施道路修理的导航。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2002108826A METHOD FOR INFORMATION SERVICE 失效
公开(公告)号：JP2002108826A
公开(公告)日：2002-04-12
申请号：JP2000300571
申请日：2000-09-28
申请人： HITACHI LTD
发明人： FUKUZAWA YASUKO , SETO YOICHI , IINO TAKAYUKI
IPC分类号： G06F13/00 , G06F15/00 , G06F21/00 , H04B7/26 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a method for information service capable of distributing information of a large capacity such as music effectively to a traveling object. SOLUTION: The service information is sent through a communication interface, by which a large-capacity communication is possible, different from a traveling object communication interface performing the request procedure of the service.

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