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1. 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

2. 发明专利

JPH11272366A Method for controlling voltage of peripheral equipment interface and system device 失效
标题翻译：用于控制外围设备接口和系统设备电压的方法
公开(公告)号：JPH11272366A
公开(公告)日：1999-10-08
申请号：JP6973298
申请日：1998-03-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOKOYAMA SATORU , NOMOTO SHINSUKE
IPC分类号： G06F1/26 , G06F3/00
摘要： PROBLEM TO BE SOLVED: To provide peripheral equipment interface voltage controlling technique capable of supplying power from a system device to a peripheral equipment requiring large power consumption without using an external power supply.
SOLUTION: The system device 10 reads out the information of a recommended voltage supply range for operating a connected peripheral equipment (IEEE1394 equipment) 30 from the connected equipment 30 by using a peripheral equipment interface (IEEE11394 interface) 20 and changes supply voltage so as to coincide with the recommended voltage. The equipment 30 detects the supply voltage, and when voltage coincident with the recommended voltage is supplied, the supplied voltage is used as it is to drive the equipment 30. When the supplied voltage is lower than the recommended voltage, the impossibility of obtaining necessary power from the system device 10 is judged and the equipment 30 is driven by an external power supply. When no device is connected or a connected equipment has no information of recommended voltage, interface controllers (IEEE1394 controllers) 13, 33 reduce the supplied voltage.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：提供能够在不使用外部电源的情况下从系统设备向需要大功率的外围设备供电的外围设备接口电压控制技术。解决方案：系统设备10通过使用外围设备接口（IEEE11394接口）20从连接的设备30读出用于操作连接的外围设备（IEEE1394设备）30的推荐电压供应范围的信息，并改变电源电压，以便与推荐的电压一致。设备30检测供电电压，当提供与推荐电压一致的电压时，直接使用提供的电压来驱动设备30.当所提供的电压低于推荐电压时，不可能获得必要的电力从系统装置10判断出设备30由外部电源驱动。当没有连接设备或连接的设备没有推荐电压信息时，接口控制器（IEEE1394控制器）13,33可减少供电电压。

3. 发明专利

JP2001117706A INFORMATION PROCESSOR AND INFORMATION PROCESSING SYSTEM CORRESPONDING TO ONE-OPERATION KEY 失效
公开(公告)号：JP2001117706A
公开(公告)日：2001-04-27
申请号：JP30055599
申请日：1999-10-22
申请人： HITACHI LTD
发明人： NAGAO KYOKO , HISAMATSU TOSHINOBU , HANADA TOMOHIKO , YOKOYAMA SATORU , SAWAJIRI HARUHIKO
IPC分类号： G06F3/02
摘要： PROBLEM TO BE SOLVED: To provide an information processor and an information processing system corresponding to one-operation keys and having programmable functions for controlling a control computer(CC) by extending a CC controlling range based on conventional technology and making it possible to variously control the CC. SOLUTION: The information processor is provided with a key code identification part for receiving the CC standard reference constitution of a CC body part and key codes based on the depression of keys on a keyboard and identifying several specific key codes, a specific key code setting part for respectively allocating a function for controlling the CC to several specific code, a CC state judging part capable of recognizing the state of the CC, and a control signal generation part for receiving an instruction for controlling the CC from the key code setting part and controlling a signal capable of controlling the CC in accordance with CC information obtained from the CC state judging part.

4. 发明专利

JP2001229119A DEVICE SELECTION HUBBOX BY PLURAL COMPUTERS 失效
公开(公告)号：JP2001229119A
公开(公告)日：2001-08-24
申请号：JP2000043531
申请日：2000-02-16
申请人： HITACHI LTD
发明人： NAGAO KYOKO , YOKOYAMA SATORU
IPC分类号： G06F13/14
摘要： PROBLEM TO BE SOLVED: To realize comfortable operation with a high degree of freedom that conventional technology does not have by optionally selecting and switching peripheral devices that respective computers use from the peripheral devices without the physical connection states of the computers and peripheral devices connected thereto in environment wherein one user uses plural computers such as a personal computer and a server. SOLUTION: This invention is composed of a trigger generation part, a control PC switching logic part, a hub repeater, a HUB control part, plural actual up-stream ports, plural actual down-stream ports, a virtual up-stream port, and a virtual down-stream port. The trigger generation part may be a computer which executes a dedicated application or a keyboard, a switch, button, etc.

5. 发明专利

JPH09331372A INFORMATION PROCESSING UNIT 失效
公开(公告)号：JPH09331372A
公开(公告)日：1997-12-22
申请号：JP15073996
申请日：1996-06-12
申请人： HITACHI LTD
发明人： OKAZAKI TOSHIHIDE , YOKOYAMA SATORU
IPC分类号： G06F13/00 , H04B3/00 , H04L29/08
摘要： PROBLEM TO BE SOLVED: To automatically decide a data transfer rate optimum for a characteristic of an information transmission line. SOLUTION: Each of unit devices 2-2c in the information processing unit of a configuration where a plurality of the unit devices 2, 2a, 2b are interconnected by cables 1a-1d whose characteristic is the same or different is provided with a test control logic 10 having a function of sending a test pulse signal whose pulse number is a specific number to other unit device at a plurality of kinds of a data transfer rate via the cable 1a-1d and a function of discriminating the presence of an error by receiving the test pulse signal via the cables 1a-1d to count number of pulses. On the opportunity of start of the information processing unit, transmission and reception of the test pulse signal are executed between two optional unit devices and the operation of deciding an optimum data transfer rate for the cable connecting the two unit devices is executed automatically.

6. 发明专利

JP2002044776A RADIO TRANSMISSION SYSTEM FOR SOUND 失效
公开(公告)号：JP2002044776A
公开(公告)日：2002-02-08
申请号：JP2000229022
申请日：2000-07-25
申请人： HITACHI LTD
发明人： NAGAO KYOKO , YOKOYAMA SATORU , YAMAUCHI KOJI , HASEGAWA MASAYUKI
IPC分类号： G06F3/00 , H04B1/04 , H04R3/00
摘要： PROBLEM TO BE SOLVED: To allow listening to a music source of a personal computer through audio equipment in high sound quality with avoiding any necessity for a built-in sound board for specified interface support and any necessity of cable layout. SOLUTION: A radio transmission system for sound comprises a personal computer standard interface adapting to a multi-action allowing a music source transmission and an audio control, a conversion part to receive the music source from the personal computer and to convert it into radio data supported by common audio equipment, a transmission part to transmit the data received from the conversion part in a radio signal, a control part to control audio related parts or the like of the computer and a transmission system control part to control the system.

7. 发明专利

JPH09190244A CONTROLLER FOR COOLING FAN 失效
公开(公告)号：JPH09190244A
公开(公告)日：1997-07-22
申请号：JP396496
申请日：1996-01-12
申请人： HITACHI LTD
发明人： OKAZAKI TOSHIHIDE , YOKOYAMA SATORU , YOSHIMURA YOSHIHIRO
IPC分类号： F25D1/00 , G06F1/20
摘要： PROBLEM TO BE SOLVED: To control the gas quantity of a cooling fan based on the change of temperature in the casing of an information processor and the noise of a room where the information processor is installed. SOLUTION: In addition to a temperature sensor 3 measuring temperature in the casing of the information processor, an external microphone 4 measuring noise in the room where the information processor is installed is provided. A control part 5 controls the number of revolution on the fan 2 based on measured temperature and noise. When the room is noisy, the number of revolution on the fan 2 is increased in a range where noise occurring from the fan 2 is inconspicuous compared with the noise of the room so as to drop temperature in the casing.

8. 发明专利

JPH06348600A DISK CACHE DEVICE 失效
公开(公告)号：JPH06348600A
公开(公告)日：1994-12-22
申请号：JP13425693
申请日：1993-06-04
申请人： HITACHI LTD
发明人： YOKOYAMA SATORU
IPC分类号： G06F3/06 , G06F12/08 , G06F12/16
摘要： PURPOSE:To shorten write time by writing data in a nonvolatile cache memory from a host processor first, and reporting the end to the host processor and then transferring the data to a magnetic disk device. CONSTITUTION:A processor 5 when receiving a command to the magnetic disk device from the host processor through a host interface 1 sends a power-ON command to a power source control part 7 to power ON the magnetic disk device. Then when the received command indicates a writing processing, the processor 5 retrieves whether or not there is a data area to be written in the nonvolatile semiconductor cache memory 4 backed up by a battery 3 and writes the data in the prescribed data area according to whether or not there is a cache hit. After all data sent from the host processor are written in the cache memory 4, the end is reported to the host processor and the data are transferred to the magnetic disk device.

9. 发明专利

JPH06273486A SCANNING SYSTEM 失效
公开(公告)号：JPH06273486A
公开(公告)日：1994-09-30
申请号：JP5990493
申请日：1993-03-19
申请人： HITACHI LTD
发明人： TANAKA YOICHI , YOKOYAMA SATORU
IPC分类号： G01R31/28 , G06F11/22
摘要： PURPOSE:To make main and service processors read and write data targeting all FFs, to enable the service processor to conduct it simultaneously, and to enable communications between both processors by providing an address decoder, a conciliation means, and a switching means. CONSTITUTION:Data can be written into and read out of not only a FF 16, but also all the FFs 16 included in all hardwares from a main processor 1 through the process of detecting 4, 5 accesses, conciliating.switching 6, 7 access requests, and selecting 12-15 processors. Similarly, data can be written into and read out of the FF 16 not only through a scanning circuit, but also in synchronism with the processor 1 from the service processor 2. Since both processors can written into and read out of mutual data the FF 16 in tuning, communications between both can be conducted securely without using the interruption between the processors.

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