公开(公告)号：JP2004078453A

公开(公告)日：2004-03-11

申请号：JP2002236261

申请日：2002-08-14

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： ASANO HIDEO

IPC: G06F3/06 ,  G11B19/04 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18

CPC classification number: G11B20/1883 ,  G11B19/04 ,  G11B2020/1062 ,  G11B2220/20

Abstract: PROBLEM TO BE SOLVED: To suppress an instantaneous deterioration in performance at the time of reassigning data.
SOLUTION: Data whose writing in the writing scheduled sector of a hard disk 90 is difficult are recorded in an MRAM 18, and the writing scheduled sector in which the writing of data is difficult is checked in a background where the data writing in the next writing scheduled sector is executed, and when any abnormality is not detected, the data stored in the MRAM 18 are written in the writing scheduled sector of the hard disk 90, and when any abnormality is detected, the data stored in the MRAM 18 are written in the alternative sector of the hard disk 90. The data whose reading from the reading scheduled sector of the hard disk 90 is difficult are recorded in the MRAM 18, and the reading scheduled sector from which the reading of data is difficult is checked in a background where the data reading from the next reading scheduled sector is executed, and when any abnormality is detected, the data stored in the MRAM 18 are written in the alternative sector of the hard disk 90.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003016779A

公开(公告)日：2003-01-17

申请号：JP2001199723

申请日：2001-06-29

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーション

Inventor： SUNANAGA TOSHIO ,  MIYATAKE HISATADA ,  KITAMURA TSUNEJI ,  UMEZAKI HIROSHI ,  NODA HIROYOSHI ,  ASANO HIDEO

IPC: G11C11/14 ,  G11C11/15 ,  H01L21/8246 ,  H01L27/105 ,  H01L43/08

Abstract: PROBLEM TO BE SOLVED: To provide a storage circuit block in which a write-in current can be reduced, and to provide a method for accessing the storage circuit block.
SOLUTION: This storage circuit block 10 comprises a means for holding data stored in a sense amplifier 24, a means holding data inputted to an input/ output pad 22, and a means for comparing data held in the means holding data stored in the sense amplifier 24 with data held in the means holding data inputted to the input/output pad 22.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供可以减少写入电流的存储电路块，并提供访问存储电路块的方法。 解决方案：该存储电路块10包括用于保存存储在读出放大器24中的数据的装置，保持输入到输入/输出焊盘22的数据的装置，以及用于比较保存在存储在读出放大器 24，其中保存有保持输入到输入/输出垫22的数据的装置中的数据。

公开(公告)号：JP2003016778A

公开(公告)日：2003-01-17

申请号：JP2001199620

申请日：2001-06-29

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーション

Inventor： SUNANAGA TOSHIO ,  MIYATAKE HISATADA ,  KITAMURA TSUNEJI ,  UMEZAKI HIROSHI ,  NODA HIROYOSHI ,  ASANO HIDEO

IPC: G11C11/14 ,  G11C11/15

CPC classification number: G11C11/15 ,  G11C2207/2263

Abstract: PROBLEM TO BE SOLVED: To provide a storage circuit block in which a write-in current can be reduced, and to provide a method for accessing the storage circuit block. SOLUTION: This device comprises a means for detecting a data write-in current flowing in a bit line 32, and a means for generating a stop signal of a data write-in current flowing in the bit line 32 and a write-in word line 30.

Abstract translation: 要解决的问题：提供可以减少写入电流的存储电路块，并提供访问存储电路块的方法。 解决方案：该装置包括用于检测在位线32中流动的数据写入电流的装置，以及用于产生在位线32中流动的数据写入电流的停止信号的装置和写入字线 30。

公开(公告)号：JP2001125829A

公开(公告)日：2001-05-11

申请号：JP30660599

申请日：1999-10-28

Applicant: IBM ,  PROMISE TECHNOLOGY INC

Inventor： KANAMARU ATSUSHI ,  ASANO HIDEO ,  KIHASHI AKIRA ,  KUSHIDA KOICHI ,  SAITO TAKAHIRO ,  CHICHEN UU ,  KELVIN KAO

IPC: G06F12/08 ,  G06F3/06 ,  G06F9/32 ,  G06F9/34 ,  G06F9/38 ,  G06F13/38

Abstract: PROBLEM TO BE SOLVED: To execute detailed analysis and prediction by an outside controller in reponse to a true request from an application, and to issue a look-ahead request to an auxiliary storage device such as an HDD. SOLUTION: An HDC card 21, which stores data and is connected to an HDD device 22 having a cache memory, is provided with an access request trace part 61 for directly tracing a true access request from an application program to be executed by a host from the application program, a speculative request deciding part 62 for deciding a speculative request estimated in the future based on the traced true access request, and an HDC 31 for issuing the decided speculative request to the HDD device 22.

公开(公告)号：JPS61225975A

公开(公告)日：1986-10-07

申请号：JP6402185

申请日：1985-03-29

Applicant: IBM

Inventor： ASANO HIDEO ,  KANZAKI EISUKE

IPC: H04N1/403 ,  H04N1/40

公开(公告)号：JPS61102872A

公开(公告)日：1986-05-21

申请号：JP22229284

申请日：1984-10-24

Applicant: Ibm

Inventor： ASANO HIDEO ,  KANZAKI EISUKE ,  SHIMIZU YUTAKA

IPC: H04N1/417 ,  H04N1/411

CPC classification number: H04N1/411

公开(公告)号：JP2003016774A

公开(公告)日：2003-01-17

申请号：JP2001194227

申请日：2001-06-27

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーション

Inventor： MIYATAKE HISATADA ,  NODA HIROYOSHI ,  UMEZAKI HIROSHI ,  ASANO HIDEO ,  SUNANAGA TOSHIO ,  KITAMURA TSUNEJI

IPC: G11C11/14 ,  G11C11/15 ,  H01L21/8246 ,  H01L27/105 ,  H01L43/08

Abstract: PROBLEM TO BE SOLVED: To solve such a problem that because a current is required to make to flow for each bit line when data are written simultaneously in a plurality of data bits belonging to the same column address, a current required for write-in is enlarged.
SOLUTION: This device comprises a plurality of pairs of bit line comprising a first bit line and a second bit line, a plurality of storage cells storing information in accordance with the direction of a current flowing in the pair of bit line, at least one current driving source connected to at least one of pairs of bit line and making to flow a current in the first bit line and the second bit line of which the directions of current are reverse each other, at least one switch circuit connecting pairs of bit line and pairs of bit line, and a control circuit controlling a connection state of the switch circuit in accordance with information stored in the storage cell.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了解决由于在属于同一列地址的多个数据位中同时写入数据时需要为每个位线流动电流的问题，写入所需的电流为 放大 解决方案：该装置包括多对位线，包括第一位线和第二位线，多个存储单元根据在一对位线中流动的电流的方向存储信息，至少一个电流 驱动源连接到位线对中的至少一个并使得流过第一位线中的电流，并且使电流方向彼此相反的第二位线，至少一个连接成对的位线和 一对位线，以及根据存储在存储单元中的信息来控制开关电路的连接状态的控制电路。

公开(公告)号：JP2001014107A

公开(公告)日：2001-01-19

申请号：JP16623899

申请日：1999-06-14

Applicant: IBM

Inventor： KIHASHI AKIRA ,  ASANO HIDEO ,  COLEGROVE DANIEL JAMES

IPC: G06F1/32 ,  G06F3/06 ,  G11B19/00 ,  G11B19/02 ,  G11B19/20 ,  G11B20/10

Abstract: PROBLEM TO BE SOLVED: To provide a restoration time prediction method, a restoration time prediction device and a hard disk drive capable of effectively utilizing power restoration time required for restoration from a standby state and achieving the acceleration of the entire system provided with the hard disk drive. SOLUTION: When a host originates a request for releasing the standby state to this hard disk drive in a standby state, the power restoration time required for the hard disk drive to be restored from the standby state so as to become usable is predicted (S2). Then, the predicted power restoration time is reported to the host (S3). Since a host system recognizes the time required for power restoration, a schedule is made so as to execute a task to be ended within the time interval before the hard disk drive is started and the schedule of the task of the entire system inside the host system is optimized. Thus, the acceleration of the entire system provided with the hard disk drive is achieved.

公开(公告)号：JP2001005616A

公开(公告)日：2001-01-12

申请号：JP16462599

申请日：1999-06-11

Applicant: IBM

Inventor： ONO HIROYUKI ,  ASANO HIDEO ,  KANAMARU ATSUSHI

IPC: G06F12/16 ,  G06F3/06 ,  G06F11/22 ,  G11B5/09 ,  G11B20/10 ,  G11B20/18 ,  G11C29/00

Abstract: PROBLEM TO BE SOLVED: To eliminate a momentary decrease in performance as much as possible by performing a specific inspection regarding a function in a standby state wherein there is no access from a host. SOLUTION: It is judged whether the disk storage device is in standby mode (S1) and when not, commands from the host which are generated in a specific time are executed (S2) in current execution or after the execution temporarily ends. When it is judged that the device is in standby mode, a read test by a sequential read and a write servo test conducted by positioning a head at a write position are carried out so as to search for a bad sector and a write test by data writing to a specific sector is carried out to judge abnormality of the head. Consequently, when a bad sector is found through the read test or write servo test, it is formed in a preliminary area on a disk and reassigned to an alternative sector and when an abnormality of the head is found through the write test, that is reported to a user (S3).

公开(公告)号：JP2000163897A

公开(公告)日：2000-06-16

申请号：JP33568198

申请日：1998-11-26

Applicant: IBM

Inventor： KANAMARU ATSUSHI ,  ASANO HIDEO ,  UEDA TETSUO

IPC: G11B20/12 ,  G11B5/012 ,  G11B5/55 ,  G11B5/596 ,  G11B5/82 ,  G11B20/18 ,  G11B21/08 ,  G11B21/10 ,  G11B27/32

Abstract: PROBLEM TO BE SOLVED: To improve performance of a whole disk drive device while keeping the reliability. SOLUTION: Tracks used for the recording and tracks unused for the recording are alternately arranged in the specific areas of a magnetic disk 1. By a control part 3, the range of the specific areas is kept, and the threshold for detecting the completion of the seek against the tracks in the specific area is mitigated than the threshold for detecting the completion of the seek against the tracks out of the specific area.