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11. 发明专利

JP2008199853A Device, system and method for compensating reactive power 有权
标题翻译：用于补偿反应动力的装置，系统和方法
公开(公告)号：JP2008199853A
公开(公告)日：2008-08-28
申请号：JP2007035144
申请日：2007-02-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOFUJI YASUHIRO , KASHIWAZAKI HIROSHI , AIHARA TAKASHI , ITO TOMOMICHI , KOSEKI SHOICHIRO , EGUCHI YOSHIO , TANAKA SEIJI , KATO TETSUYA , IMAZU YASUHIRO
IPC分类号： H02J3/18 , G05F1/70
CPC分类号： Y02E40/12 , Y02E40/16
摘要： PROBLEM TO BE SOLVED: To restrain power fluctuation generated on a consumer side by a power supply side. SOLUTION: This reactive power compensation system includes reactive power extracting means 80 which extracts a reactive current element from load current IL, reverse phase current extracting means 85 which extracts a reverse phase current element, amplitude phase computing means 60 which computes frequency characteristics for load admittance from the load current IL and linkage point voltage Vs, frequency specifying means 70 which specifies specific frequency based on amplitude characteristics and phase characteristics of the load admittance, a BEF 90 which removes the frequency element of the specific frequency, a BEF 95 which removes the frequency element of the specific element, and a power converter 20 which adds and outputs a compensation current formed from a positive phase current for canceling an output signal of the BEF 90 and a reverse phase current for canceling the output signal of the BEF 95 to the load current IL. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了抑制由电源侧在消费者侧产生的功率波动。解决方案：该无功补偿系统包括从负载电流IL提取无功电流元件的无功功率提取装置80，提取反相电流元件的反相电流提取装置85，计算频率特性的振幅相位计算装置60 用于从负载电流IL和联动点电压Vs的负载导纳，基于负载导纳的幅度特性和相位特性来指定特定频率的频率指定装置70，去除特定频率的频率元素的BEF 90，BEF 95 其去除特定元件的频率元件，以及功率转换器20，其将从正相电流形成的补偿电流用于抵消BEF90的输出信号和用于取消BEF的输出信号的反相电流 95到负载电流IL。版权所有（C）2008，JPO＆INPIT

12. 发明专利

JP2004021873A Internet system monitoring device 审中-公开
公开(公告)号：JP2004021873A
公开(公告)日：2004-01-22
申请号：JP2002179306
申请日：2002-06-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAGAMI SHINJI , TANAKA SEIJI , HANZAWA JUNICHI
IPC分类号： G06F11/30 , G06F13/00 , G06F15/00
摘要： PROBLEM TO BE SOLVED: To monitor operation of the whole of a service from a viewpoint of a service user, and to support a system and service with high safety and availability to the user and a process of quickly changing to an alternative service when there is trouble in the service.
SOLUTION: Operation of the whole environment capable of providing various services spread over a plurality of systems via the Internet is monitored by registering a domain and service providing procedures in an alternative server and creating a user for monitoring. Collation of data is carried out between the monitoring object service and the alternative server to monitor fraudulent data interpolation, and at the same time, the service is provided by the alternative server when there is trouble in the monitoring object service. By this, downtime of the service due to the trouble is shortened, and the system and service with high safety and availability is provided to the service user.
COPYRIGHT: (C)2004,JPO

13. 发明专利

JP2003329647A Explosive detection system 审中-公开
标题翻译：爆炸检测系统
公开(公告)号：JP2003329647A
公开(公告)日：2003-11-19
申请号：JP2002137470
申请日：2002-05-13
申请人： Hitachi Ltd , Japan Nuclear Security System Co Ltd , 日本原子力防護システム株式会社 , 株式会社日立製作所
发明人： NAKASHIGE KEIKO , TANAKA SEIJI , FUJITA HIROYUKI , IWASAKI TOSHIO , HATAKEYAMA KAZUHIRO , KANEKO HIDEAKI
IPC分类号： F42D5/00 , G01N27/62 , G01N27/68
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of a contamination due to ionization.
SOLUTION: When a door 14 of an entrance and exit control gate 12 is opened and an area entering person 10 enters the room of the entrance and exit control gate 12, the power for corona discharge in an explosive detection device 18 is turned on for a certain period according to a door open-close signal output corresponding to an open/close motion of the door. A gas sample including matters adhered to the person 10 is sent to the explosive detection device 18 through a suction part 20 and a gas sample lead-in tube 22, and ionized. The ionized gas sample is analyzed by an analyzer 28c. A data processor judges whether an explosive is included in the gas sample or not based on the analysis result. If an explosive is included, the door 14 is closed and the person 10 is constrained. If no explosive is detected, an exit door is opened to allow the person 10 to pass through and the power for corona discharge is turned off.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：抑制电离引起的污染的发生。
解决方案：当入口和出口控制门12的门14打开，进入人员10的区域进入入口和出口控制门12的房间时，爆炸检测装置18中的电晕放电功率被转动根据门的开/关信号输出对应于门的打开/关闭运动一段时间。包含附着于人10的物质的气体样品通过抽吸部件20和气体样本引入管22被送到爆炸检测装置18，并进行离子化。通过分析器28c分析电离气体样品。根据分析结果，数据处理器判断是否包含气体样品中的炸药。如果包括炸药，则门14关闭，人10被约束。如果没有检测到爆炸物，则打开出口门以允许人10通过，并且关闭电晕放电的电源。版权所有（C）2004，JPO

14. 发明专利

JPH09191650A POWER CONVERTER 失效
公开(公告)号：JPH09191650A
公开(公告)日：1997-07-22
申请号：JP117896
申请日：1996-01-09
申请人： HITACHI LTD
发明人： SUGIURA YASUYUKI , UEDA SHIGETA , IMAIE KAZUHIRO , TANAKA SEIJI , SATO HIROYASU
IPC分类号： H02M7/155 , H02M7/12
摘要： PROBLEM TO BE SOLVED: To realize stabilized control by decomposing a three-phase voltage signal of an AC power supply into real axis and imaginary axis components and detecting the phase of positive-phase sequence component, as a voltage phase, using instantaneous symmetry coordinate method thereby detecting the phase surely and accurately even upon occurrence of abnormality in an AC system. SOLUTION: A voltage proportional to the voltage of an AC three-phase system power supply is applied to the secondary winding of a voltage transformer 105-A and the voltage is detected at a predetermined interval by means of a real axis voltage detector 126-A for detecting the three-phase system voltages u, v, w as real axis voltages and an imaginary axis voltage detector 126-B for detecting respective imaginary phase voltages x, y, z being lagged by electrical angle 90 deg.. Furthermore, phase is operated by a positive-phase operating circuit 128 through a positive-phase sequence component operating circuit 127. An abnormal voltage decision circuit 131 predicts and decides abnormal state with reference to the magnitude of positive-phase, voltage upon occurrence of an abnormality in the system voltage. Consequently, the phase can be detected surely and accurately even if the AC system is unbalanced upon occurrence of an abnormality in the AC system resulting in a stabilized control.

15. 发明专利

JPH06292015A THRESHOLDING DEVICE AND READER AND FACSIMILE EQUIPMENT PROVIDED WITH THE DEVICE 失效
公开(公告)号：JPH06292015A
公开(公告)日：1994-10-18
申请号：JP7928293
申请日：1993-04-06
申请人： HITACHI LTD
发明人： KOBORI TOMOO , ASADA AKIHIRO , IMAZAWA KOJI , TANAKA SEIJI
IPC分类号： H04N1/403 , H04N1/40
摘要： PURPOSE:To realize improvement of picture quality by keeping continuity of contours of a picture without almost causing a defect when a picture is threshold processed. CONSTITUTION:An image area discrimination section 12 discriminates contours of a picture at a noted picture element based on multi-value picture data 15a being the noted picture element, multi-value picture data 15b being a picture element of a preceding line and multi-value picture data 3a being a picture element of a succeeding line. A state probability discrimination section 13 discriminates in which of main scanning or subscanning directions the consecution is in existence depending on each state of binary data 6a of a preceding picture element, binary data 17a of a picture element of a preceding line and multi-value picture data 5a of a succeeding picture element when a noted picture element is located at a contour part according to the result of discrimination 12a. A threshold level selection section 11 selects a desired threshold level among 1st-3rd threshold levels according to the result of discrimination 13a.

16. 发明专利

JPH06141125A CONTROL SYSTEM FOR FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH06141125A
公开(公告)日：1994-05-20
申请号：JP28725792
申请日：1992-10-26
申请人： HITACHI LTD
发明人： SHINAGAWA TETSUO , WATABE YUMIKO , TANAKA SEIJI
IPC分类号： H04N1/00
摘要： PURPOSE:To record a received facsimile signal by a VTR without the operation of the VTR by controlling recording start and recording stop of the connected VTR with an infrared ray signal. CONSTITUTION:Picture information outputted from a facsimile communication section 4 is inputted to a video signal control section 6. The video signal control section 6 converts picture information of an inputted facsimile signal into a video signal. The video signal control section 6 stores the converted video signal into a video memory 7 and outputs the video signal stored in the video memory 7 by a command from a facsimile control section 1 to a video signal output terminal 8. An infrared ray signal emission section 5 emits an infrared ray signal to control the VTR by a command of the facsimile control section 1. That is, the video signal is outputted, the infrared ray signal to set the VTR to the video recording state and the infrared ray signal to release the video recording state is emitted after lapse of a prescribed time.

17. 发明专利

JPH06121088A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH06121088A
公开(公告)日：1994-04-28
申请号：JP26742992
申请日：1992-10-06
申请人： HITACHI LTD
发明人： SHINAGAWA TETSUO , WATABE YUMIKO , ITO FUMITAKA , KIKUTA ATSUSHI , TANAKA SEIJI
IPC分类号： H04N1/00 , H04N1/21 , H04N1/32
摘要： PURPOSE:To improve the operability and to avoid complicated operation by depressing a transmission start button to advance the operation procedure of memory transmission to a succeeding procedure and allowing the user to implement the operation subsequently according to the operation guide. CONSTITUTION:The facsimile equipment is provided with a storage transmission operation button commanding facsimile transmission using a picture storage device, a transmission start button 202 and a display device 204 on which plural characters and numerals are displayed. When the storage transmission operation button is depressed, an operation guide is displayed to allow the user to select any of memory transmission of plural kinds and the operation procedure of the selected memory transmission is subsequently displayed on the display device 204 by the selection of any of the memory transmission modes by the user. The operation procedure of the memory transmission is advanced to a succeeding procedure by depressing the transmission start button 202. The user operates subsequently according to the operation guide to execute the memory transmission according to the procedure of the selected memory transmission.

18. 发明专利

JPH0685987A CONTROL SYSTEM FOR FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH0685987A
公开(公告)日：1994-03-25
申请号：JP23562492
申请日：1992-09-03
申请人： HITACHI LTD
发明人： SHINAGAWA TETSUO , WATABE YUMIKO , TANAKA SEIJI
IPC分类号： H04N1/00
摘要： PURPOSE:To continue talking by providing a telephone switching signal detection section to the system and operating a telephone set so as to select a line for the telephone set even when the line is selected for facsimile reception due to mis-detection of a CNG signal. CONSTITUTION:When the user replies an incoming call by lifting up a handset of a telephone set 4, the facsimile equipment detects a signal representing facsimile transmission (CNG signal) sent from an opposite party and when the CNG signal is, detected, a line 2 having been connected to the telephone set 4 is selected for a facsimile communication section 3 in the facsimile equipment 1. When the opposite party does not send a facsimile signal and the same frequency component signal included in human voice as the CNG signal is mis- detected as the CNG signal, the user talking with the telephone set 4 operates the telephone set 4 to send a telephone switching signal to the facsimile equipment 1. When the telephone switching signal is detected, the line 2 having been connected to the facsimile communication section 3 in the facsimile equipment 1 is switched back to the telephone set 4.

19. 发明专利

JPH0622077A FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH0622077A
公开(公告)日：1994-01-28
申请号：JP17577392
申请日：1992-07-02
申请人： HITACHI LTD
发明人： SHINAGAWA TETSUO , WATABE YUMIKO , TANAKA SEIJI
IPC分类号： H04M11/00 , H04N1/00
摘要： PURPOSE:To prevent a person picking up a receiver from being embarassed by switching a line to the facsimile equipment when a signal showing facsimile communication is transmitted from the transmission side in the case of making a telephone call and answering with picking up the receiver, and informing a message of the person picking up the receiver so as to show that the line is switched to facsimile communication and the receiver can be returned. CONSTITUTION:This equipment using one line while switching it to either facsimile communication or the communication of a telephone set is provided with a voice data storage part 8, voice reproducing part 7 to reproduce voice data in the case of use while switching to the facsimile equipment, and voice generating part to generate voices based on the reproduced voice data. The voice data stored in the voice data storage part are the voice data of the message showing that the line is switched to the facsimile communication and the receiver can be returned, and the voice generating part is a telephone set or a speaker 10 concretely.

20. 发明专利

JPH0583455A FUNCTION SETTING SYSTEM FOR FACSIMILE EQUIPMENT 失效
公开(公告)号：JPH0583455A
公开(公告)日：1993-04-02
申请号：JP23922991
申请日：1991-09-19
申请人： HITACHI LTD
发明人： SHINAGAWA TETSUO , TANAKA SEIJI
IPC分类号： H04M11/00 , H04N1/00
摘要： PURPOSE:To prevent such a state that the setting of a function is not performed normally from occurring due to the unrecognition of line specification (PB/DP) used by a user oneself in a facsimile equipment which performs the setting of the function by using an external telephone set. CONSTITUTION:A PB signal detection circuit 24 and a DP signal detection circuit 23 are provided on the facsimile equipment. When the setting of the function is performed, It is detected whether a signal sent out by depressing the digit button of a telephone set depressed first by a user is a DP signal or a BP signal, and the line specification used by the user is displayed.

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