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1. 发明专利

JP2003243193A LIGHTING DEVICE AND VOLTAGE CONTROL METHOD USING THE LIGHTING DEVICE 审中-公开
公开(公告)号：JP2003243193A
公开(公告)日：2003-08-29
申请号：JP2002043116
申请日：2002-02-20
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： OSHIMA TOSHIYOSHI , SHIBATA YASUHISA , ANDO KAZUNORI , FUJIE TOSHIAKI
IPC分类号： H05B41/24
摘要： PROBLEM TO BE SOLVED: To make a DC component of a wave form of voltage applied to a cathode tube zero on the whole based on 0 V. SOLUTION: A circuit permitting a combination of changing the position of an earthing tap of a step-up transformer and changing-over a wave form of AC voltage applied to an electrode on one side of a cathode tube to a full wave form or a half wave form is added. A power DC/AC inverter for lighting of a back light is adapted to apply AC voltage to one electrode of the cathode tube and apply AC voltage of an antiphase to the other electrode. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002134292A LIGHTING EQUIPMENT 失效
公开(公告)号：JP2002134292A
公开(公告)日：2002-05-10
申请号：JP2000328010
申请日：2000-10-27
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： OSHIMA TOSHIYOSHI , FUJIE TOSHIAKI
IPC分类号： H05B41/24 , H02M7/538 , H05B41/16
摘要： PROBLEM TO BE SOLVED: To provide lighting equipment for cathode-ray tubes, which can carry out direct-current lighting without degrading life of the cathode-ray tube by making influence of floating capacity into the minimum, and preventing generating of a cataphoresis phenomenon. SOLUTION: The lighting circuit for carrying out direct-current lighting, consists of the cathode-ray tube DL, the direct-current power supply, which generates the voltage, which can maintain lighting of the cathode-ray tube DL, and switching elements Q3 and Q4, which change the output voltage from the direct-current power supply to plus and minus on the basis of zero with a predetermined cycle and the like. The voltage impressed to one electrode of the cathode-ray tube DL is changed to the polarity of plus or minus on the basis of zero, and the electrode of another side is set as a value near zero or zero. By this, the polarity can be reversed with a predetermined cycle, without switching directly the voltage impressed to the cathode-ray tube DL with physical switches, such as a semiconductor switching element, a relay, or the like.

3. 发明专利

JP2002100491A INVERTER CIRCUIT 失效
公开(公告)号：JP2002100491A
公开(公告)日：2002-04-05
申请号：JP2000295436
申请日：2000-09-25
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： AOYAMA TAKAHIDE , OSHIMA TOSHIYOSHI , FUJIE TOSHIAKI
IPC分类号： H05B41/24 , H02M7/48 , H02M7/538 , H05B41/392
摘要： PROBLEM TO BE SOLVED: To provide an inverter circuit for varying frequency, for setting an optimal switching frequency and controlling and setting the switching frequency at time of minimum input current, by detecting input current at that time, for finding a proper place of an inverter as judging conditions. SOLUTION: This inverter circuit has an arithmetic circuit for increasing/ decreasing the switching frequency of the inverter circuit, a circuit for setting the switching frequency, a detecting circuit arranged for finding the optimal frequency and a switching frequency control circuit for controlling these circuits for setting an optimal lighting frequency of respective discharge lamps.

4. 发明专利

JP2004022469A Mechanism which prevents dropping out of universal serial bus connector 审中-公开
公开(公告)号：JP2004022469A
公开(公告)日：2004-01-22
申请号：JP2002179303
申请日：2002-06-20
申请人： Hitachi Information Technology Co Ltd , Hitachi Ltd , 株式会社日立インフォメーションテクノロジー , 株式会社日立製作所
发明人： SHIBATA YASUHISA , ANDO KAZUNORI , OSHIMA TOSHIYOSHI , YAMAUCHI KOJI
IPC分类号： H01R13/46
摘要： PROBLEM TO BE SOLVED: To provide a mechanism which prevents easy dropping out of a universal serial bus connector when a force in connector pulling out direction is added, and also solves a problem that a mechanism for preventing the universal serial bus connector dropping out cannot be added.
SOLUTION: A universal serial bus cable 5 near the universal serial bus connector 4 is fixed crank-like. For the fixing, the mechanism having a universal serial bus cable fixing guides 1c and 2c, which prevents the dropping out, is added. Consequently, prevention of the universal serial bus connector dropping out is easily realized, and the addtion of the mechanism to the current universal serial bus connector is also easy.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JPH11175050A DISPLAY SYSTEM FOR PERSON HAVING DIFFICULTY IN COLOR SENSATION 失效
公开(公告)号：JPH11175050A
公开(公告)日：1999-07-02
申请号：JP34610097
申请日：1997-12-16
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： OSHIMA TOSHIYOSHI , KOGOORI FUMIHIRO
IPC分类号： A61F9/08 , G09G5/00 , G09G5/02 , H04N9/74
摘要： PROBLEM TO BE SOLVED: To replace a display color which is hardly discriminated with another display color by adding a function for processing a video signal to the OA equipment capable of color display in the display color that a person having difficulties in sensing red-green can judge most. SOLUTION: To make it easy for the person who has difficulties in sensing red to see, for example, red is replaced with blue. A video signal waveform amplitude voltage comparison part 19 continue to compare amplitude voltages of red, green, and blue video signals 30 to 32 with a white level voltage and outputs the red video signal 33 to a video signal waveform composition part 21 only when the green video signal 31 reaches the white level and when the blue video signal 32 reaches the white level. The video signal waveform composition part 21 outputs the red video signal 39 having the same waveform with the red video signal 33 when the green video signal 36 is not inputted. When this condition is not met, the red video signal 34 is outputted to the video signal composition part 23. Then it is outputted as a substitute for the blue video signal 41.

6. 发明专利

JPH09243512A INFINITESIMAL SURFACE LUMINANCE MEASURING APPARATUS 失效
公开(公告)号：JPH09243512A
公开(公告)日：1997-09-19
申请号：JP5441296
申请日：1996-03-12
申请人： HITACHI LTD , HITACHI INFORMATION TECHNOLOGY
发明人： IWATA KENICHI , IWAI MASAHIRO , OSHIMA TOSHIYOSHI , KOGOORI FUMIHIRO
IPC分类号： G01M11/00 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To make it possible to quantitatively express the focus determination by measuring the luminance of the light of the infinitesimal surface from a material to be measured by using an optical fiber having an infinitesimal diameter and measuring the luminance by continuously altering the place. SOLUTION: An infinitesimal diameter optical fiber 2 is approached to an object 3 to be measured by a fiber fixing part 4, and only the light of the infinitesimal surface of the object 3 is incident to the fiber 2. The light of the infinitesimal surface is passed through the fiber 2, received by a photoreceiving part 7 in an infinitesimal surface luminance measuring apparatus 1, converted to a luminance value by a controller 8 and stored in a memory 9. Then, the fiber 2 is moved by an arm 5 on the surface of the object 3, and the luminance is measured similarly to the above. A character pattern is displayed on a display unit of the object, and when the place is continuously altered with respect to the pattern and measured, the quantitative expression of the focus determination can be performed.

7. 发明专利

JPH07306665A SIMPLIFIED POWER MANAGEMENT SYSTEM FOR DISPLAY DEVICE 失效
公开(公告)号：JPH07306665A
公开(公告)日：1995-11-21
申请号：JP10045694
申请日：1994-05-16
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： OSHIMA TOSHIYOSHI , IWAI MASAHIRO , KOGOORI FUMIHIRO , IWATA KENICHI
IPC分类号： G09G5/00
摘要： PURPOSE:To realize the simplified power saving of a display device by controlling an image/synchronizing signal and power supply to the display device from the outside on a host device and the display device without power management function, and contribute to the reduction of carbon dioxide, sulfur dioxide, nitrogen dioxide dis charged in large quantities from an electric power plant through the realization of power saving in addition to reducing the cost of electric power and the purhcase expanses of new hardware and software for users. CONSTITUTION:A power management system for a host device 9 and a display device 6 existing without power management function can realize simplified power saving by monitoring a keyboard and mouse signals S1, S2 from the outside so as to control an image/synchronizing signal S5 and power supply S6 to the display device 6. In this power management system, a synchronous separating/synthesizing circuit that can cope with a composite signal system, one of signal systems for the display device is provided at a synchronizing signal output circuit 5, at the input part from the host device 9 and at the output part to the display device 6, and the unused state of the host device 9 can be shifted to three kinds of power-saving modes easily by the optionally set elapsed time.

8. 发明专利

JPH04181292A DISPLAY SIGNAL CONTROL SYSTEM 失效
公开(公告)号：JPH04181292A
公开(公告)日：1992-06-29
申请号：JP30892190
申请日：1990-11-16
申请人： HITACHI LTD , HITACHI COMPUTER ELECTRONIC
发明人： OSHIMA TOSHIYOSHI , TOMIMATSU KAZUFUMI , IWAI MASAHIRO , HIROTA TAMOTSU , YAGINUMA ATSUSHI
IPC分类号： G09G5/00 , G09G5/12 , G09G5/18
摘要： PURPOSE:To allow the display optimum for a display by sending the frequency mode with which a discrimination signal output circuit provided on the display can deal to a host device. CONSTITUTION:The frequency mode of the display is outputted from the discrimination signal output circuit 2 in the display device 1 to a microprocessor 4 of the host device 3. The microprocessor 4 receiving the signal decides a dot clock and horizontal and vertical deflection frequencies as the frequency mode of the display. This information is calculated by equation 1, equation 2 indicating the number of the horizontal and vertical dots which can be displayed on a screen. The information is then transmitted as a signal S1 to a program control circuit 5. The program control circuit 5 forms a timing chart for display. The use of the display device of the single frequency mode for all the host system devices 3 is possible and the display is made always at the center of the screen without adjustment.

9. 发明专利

JP2003067275A Access destination input program and access destination input device 有权
标题翻译：访问目的地输入程序和访问目的地输入设备
公开(公告)号：JP2003067275A
公开(公告)日：2003-03-07
申请号：JP2001255455
申请日：2001-08-27
申请人： Dainippon Printing Co Ltd , Hitachi Ltd , 大日本印刷株式会社 , 株式会社日立製作所
发明人： ANDO KAZUNORI , UENO TOMOICHI , WATANABE KENJI , MASUDA TOSHIO , OSHIMA TOSHIYOSHI , KITAYAMA TAKUO
IPC分类号： G06K7/00 , G06F13/00
摘要： PROBLEM TO BE SOLVED: To provide a system which reads two dimensional codes by a two dimensional code reader, and can connect to an communication address such as a URL from a communication terminal machine such as a personal computer connected to the Internet, wherein the two dimensional code does not include a direct communication address.
SOLUTION: In this system, an identification code and a local address are used and the two dimensional code does not include a communication address such as a URL and two dimensional code reader and two dimensional codes are limitedly available. It is made possible to discriminate the access to the communication address by reading two-dimensional codes with a two dimensional code reader and the access to the communication address by operation of keyboard, etc., of a personal computer.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种通过二维码读取器读取二维码的系统，并且可以连接到诸如连接到因特网的个人计算机的通信终端机的诸如URL的通信地址，其中两个二维码不包括直接通信地址。解决方案：在该系统中，使用识别码和本地地址，并且二维码不包括诸如URL和二维码阅读器的通信地址，并且二维码有限地可用。通过用二维码读取器读取二维码和通过操作个人计算机的键盘等访问通信地址，可以区分对通信地址的访问。

10. 发明专利

JP2004302718A Access control method for nonvolatile memory device 审中-公开
公开(公告)号：JP2004302718A
公开(公告)日：2004-10-28
申请号：JP2003093128
申请日：2003-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSHIMA TOSHIYOSHI , YOKOYAMA SATORU , ANDO KAZUNORI , SHIBATA YASUHISA
IPC分类号： G06F12/14 , G06F12/00 , G06F12/02 , G06F21/02
摘要： PROBLEM TO BE SOLVED: To make data in an all-purpose memory such as a high capacity flash memory, an EEPROM and so on additionally writable but not rewritable.
SOLUTION: Address information written latest is stored in a part of the storage region of an EEPROM 5 or another storage region and read out when data are recorded next time, or a USB microcomputer 4 searches the head in which the data is FFh while reading the data from a head address and then incrementing the address when said microcomputer executes writing, or reads an optional address, searches the head in which the data is the FFh and acquires it. The search is possible by comparison with other than the FFh. The recorded data can be deleted. An exclusive request for making a subsequent deletion request invalid is prepared by an exclusive application 2 and an exclusive driver 3, and even if the deletion is requested, the USB microcomputer 4 neglects the request.
COPYRIGHT: (C)2005,JPO&NCIPI

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