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公开(公告)号：EP0802526A3
公开(公告)日：1998-05-20
申请号：EP97302206
申请日：1997-04-01
Applicant: IBM
Inventor： SMITH GORDON J
CPC classification number: G11B5/41 , G11B5/5547 , G11B19/04 , G11B23/505
Abstract: The application increases the reliability of a data storage device. The data storage devices contain a memory element disk, containing data, the memory element disk being rotatably mounted about an axis, a transducer head, an actuator for moving the transducer head relative to the disk, and a counter for counting the number of seek operations performed by the transducer head. The invention may include setting a threshold seek value T
seek and comparing this value to the actual seek performed by the head, V
seek , to determine the need for a stop/start operation. Alternatively, the application includes defining threshold seek operation count T
seek , counting the number of seek operations to determine M
seek since the last stop/start operation, recalling the total number of seek operations completed by the data storage device to define N
seek , defining D
seek by determining the difference between N
seek and M
seek , and determining whether D
seek is equal to or greater than T
seek . When D
seek is equal to or greater than T
seek , the transducer head undergoes a stop/start operation. M
seek may then be reset to equal N
seek before the stop/start operation is undertaken. When D
seek is less than T
seek the count is commenced. The application may also be used with devices that additionally have auxiliary memory and with arrays of data storage devices.Abstract translation: 该应用程序提高了数据存储设备的可靠性。 数据存储装置包含含有数据的存储器元件盘，存储器元件盘围绕轴可旋转地安装，换能器头，用于相对于盘移动换能器头的致动器以及用于计数查找操作次数的计数器 由传感器头执行。 本发明可以包括设置阈值搜索值T seek并将该值与由磁头V seek执行的实际搜索相比较以确定对停止/开始操作的需要。 可选地，应用程序包括定义阈值搜索操作计数T seek，对自上次停止/开始操作以来确定M seek的搜索操作的次数进行计数，调用由数据存储设备完成的搜索操作的总数以定义N seek， D通过确定N seek与M seek之间的差异来确定D seek，并确定D seek是否等于或大于T seek。 当D seek等于或大于T seek时，传感器头经历停止/启动操作。 在执行停止/启动操作之前，M seek可以被重置为等于N seek。 当D seek小于T时，开始计数。 该应用程序还可以与另外具有辅助存储器和数据存储设备阵列的设备一起使用。
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公开(公告)号：JPH1064177A
公开(公告)日：1998-03-06
申请号：JP9044697
申请日：1997-04-09
Applicant: IBM
Inventor： SMITH GORDON J
Abstract: PROBLEM TO BE SOLVED: To improve the reliability of disk drives by starting another stop/start operation and temporarily storing the data received during the stop/start operation when the number of the seek operations to be counted reaches a prescribed number. SOLUTION: An array controller 33 includes an operation memory for deciding whether the cumulative number of times of the seek operation in either of the drive 10 or 10' instructs the stop/start operation or not. A virtual drive 37 transfers data through the array controller 33 to an auxiliary memory device 31. The auxiliary memory device 31 replaces and stores the data to be fed to the drive 10 while the drive 10 is restarted right after stopping. When the drive 10 is restarted, the data ought to be written into the drive 10 is transferred from the auxiliary memory device 31 to the drive 10. The auxiliary memory device 31 expedites the restoration of the array system after the stop/start operation is completed.
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公开(公告)号：DE69620141D1
公开(公告)日：2002-05-02
申请号：DE69620141
申请日：1996-12-02
Applicant: IBM
Inventor： SMITH GORDON J , OTTESEN HAL HJALMAR
Abstract: An apparatus and method for reading an information signal from a magnetic storage medium (24) using a magnetoresistive (MR) element (72), modifying the signal such that a thermal component of the signal representing a thermal response of the MR element (72) is degraded, and altering the modified signal to produce a restored thermal signal substantially representative of the thermal component of the signal read from the storage medium (24). The information signal induced in the MR element (72) is communicated from the MR element (72) to an arm electronics (AE) module (74) having a highpass filtering behavior. The AE module passes content of the information signal other than the thermal component content, thereby degrading the thermal component of the information signal. An inverse filter (76,88), implemented using an infinite impulse response (IIR) filter, receives the highpass filtered signal from the AE module (74) and produces a restored thermal signal substantially representative of the thermal component of the information signal. The inverse filter (76,88) has a response substantially inverse to that of the effective highpass filter of the AE module (74). A signal summing device (90) is coupled to the AE module (74) and the inverse filter (88) for receiving a restored thermal signal from the inverse filter (88) and a composite signal, including thermal and magnetic components, from the AE module (74) and substantially eliminates the thermal component of the composite signal, which otherwise distorts or modulates the composite signal.
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公开(公告)号：DE69606784T2
公开(公告)日：2000-08-31
申请号：DE69606784
申请日：1996-12-13
Applicant: IBM
Inventor： SMITH GORDON J , OTTESEN HAL HJALMAR
IPC: G01N25/72 , G11B5/00 , G11B5/012 , G11B5/455 , G11B5/55 , G11B5/596 , G11B5/82 , G11B13/00 , G11B21/02 , G11B27/24 , G11B33/10 , G11B33/14 , G11B23/42
Abstract: The present invention is a method and apparatus for positioning a magnetoresistive (MR) head relative to a storage medium in a storage device. The storage medium is mounted in the storage device to allow relative movement between the MR head and the storage medium. The storage medium includes servo information provided to induce a thermal response in the MR head. A controller controls the relative movement between the MR head and the storage medium using the thermal response induced in the MR head.
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公开(公告)号：DE69700749T2
公开(公告)日：2000-06-08
申请号：DE69700749
申请日：1997-03-25
Applicant: IBM
Inventor： OTTESON HAL HJALMAR , SMITH GORDON J
Abstract: A multiple frequency zoned disk storage device in which data is read from and/or written to the disk at two or more discrete disk velocities is disclosed. The disk storage device includes a low power mode where information is read/written from/to the disk while the disk velocity is reduced to conserve power. The allocation track locations into zones on the drive reduces the number of zone bit frequencies the storage device must handle.
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Patent Agency Ranking
公开(公告)号：DE69619785T2
公开(公告)日：2003-03-13
申请号：DE69619785
申请日：1996-12-03
Applicant: IBM
Inventor： SMITH GORDON J , OTTESEN HAL HJALMAR
Abstract: A dual element (80a,80b) magnetoresistive (MR) head (80) is positioned relative to a storage medium (24) in a storage device (20). The MR head (80) has first and second MR elements (80a,80b). The storage medium (24) is mounted in the storage device (20) to allow relative movement between the MR head (80) and the storage medium (24). The storage medium (24) includes servo information (106,108) provided to induce first and second thermal responses (211,213) in the MR elements (80a,80b). A controller (250) is coupled to the MR head (80) and controls the relative movement between the MR head (80) and the storage medium (24) using the first and second thermal responses (211,213) in the MR elements (80a,80b).
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公开(公告)号：DE69517787T2
公开(公告)日：2000-12-14
申请号：DE69517787
申请日：1995-12-06
Applicant: IBM
Inventor： OTTESEN HAL H , SMITH GORDON J
IPC: H04N7/081 , H04N7/08 , H04N7/173 , H04N21/4545 , H04N21/475 , H04N21/83
Abstract: A system and method for editing program material provide viewers with real-time editing control. Digital program material are divided into relatively short segments and each of these segments are rated to indicate a level of potentially objectionable material contained therein. Each segment is tagged to indicate this rating. Prior to viewing the program material, or during playback of the program material, the viewer determines the rating level at which he or she wishes to view the program material. This rating level is entered into the playback system. Upon playback, the system examines the tag of each segment to determine whether that segment should be played. If a segment is tagged to indicate a rating with a higher level than that requested by the viewer, the tag is edited and not displayed. Thus, the program material is edited in real time as it is displayed to the viewer.
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公开(公告)号：CA2155888A1
公开(公告)日：1996-07-01
申请号：CA2155888
申请日：1995-08-11
Applicant: IBM
Inventor： OTTESEN HAL H , SMITH GORDON J
IPC: H04N7/08 , H04N7/081 , H04N7/173 , H04N21/4545 , H04N21/475 , H04N21/83 , H04N7/16
Abstract: A system and method for editing program material provide viewers with real-t ime editing control. Digital program material are divided into relatively short segments and each of these segments are rated to indicate a level of potentially obje ctionable material contained therein. Each segment is tagged to indicate this rating. Prior to viewing the program material, or during playback of the program material, th e viewer determines the rating level at which he or she wishes to view the pro grammaterial. This rating level is entered into the play back system. Upon playback, the system examines the tag of each segment to determine whether that segment sh ouldbe played. If a segment is tagged to indicate a rati ng with a higher level than that requested by the viewer, the tag is edited and not displayed. Thus, the prog ram material is edited in real time as it is displayed to the viewer.
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公开(公告)号：CA1143781A
公开(公告)日：1983-03-29
申请号：CA356121
申请日：1980-07-14
Applicant: IBM
Inventor： LAMMERS GERALD B , SMITH GORDON J
Abstract: Disclosed is a droplet aspirator suitable for use with a multinozzle ink jet printer. The aspirator includes a housing with a flow channel therein. The flow channel includes an exit section having a substantially planar geometry with a constant crosssectional area extending from a point where ink droplets are ejected into the channel to a point where the droplets exit said channel, an entry section having a relatively large cross-sectional. area and an intermediate section with reduced crosssectional area interconnecting the entry section with the exit section.
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公开(公告)号：PL327579A1
公开(公告)日：1998-12-21
申请号：PL32757996
申请日：1996-12-13
Applicant: IBM
Inventor： SMITH GORDON J , OTTESEN HAL HJALMAR
IPC: G01N25/72 , G11B5/00 , G11B5/012 , G11B5/455 , G11B5/55 , G11B5/596 , G11B5/82 , G11B13/00 , G11B21/02 , G11B27/24 , G11B33/10 , G11B33/14 , G11B23/42
Abstract: The present invention is a method and apparatus for positioning a magnetoresistive (MR) head relative to a storage medium in a storage device. The storage medium is mounted in the storage device to allow relative movement between the MR head and the storage medium. The storage medium includes servo information provided to induce a thermal response in the MR head. A controller controls the relative movement between the MR head and the storage medium using the thermal response induced in the MR head.
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