DATA SLICE CIRCUIT AND DATA SLICE METHOD

    公开(公告)号:MY122099A

    公开(公告)日:2006-03-31

    申请号:MYPI9804488

    申请日:1998-09-30

    Applicant: IBM

    Abstract: A METHOD AND APPARATUS FOR REDUCING THE EFFECT OF INTER-WAVE INTERFERENCE ON SIGNALS READ FROM A STORAGE MEDIUM AND TO PRECISELY DIGITIZE THE READ SIGNALS ARE DESCRIBED.AN APPARATUS FOR DIGITIZING A SIGNAL READ FROM A STORAGE MEDIUM ACCORDING TO AN EMBODIMENT OF THE INVENTION,COMPRISES:A PEAK DETECTOR (26),FOR DETECTING A PEAK VALUE FOR AN AMPLITUDE OF A SIGNAL READ FROM THE STORAGE MEDIUM;A THRESHOLD VALUE DETERMINER (28),FOR EMPLOYING THE PEAK VALUE OBTAINED BY THE PEAK DETECTOR TO DETERMINE A DETERMINE A COMPENSATION VALUE THAT IS USED FOR COMPENSATING FOR THE EFFECT OF INTER-WAVE INTERFERENCE ON THE SIGNAL,AND FOR EMPLOYING THE THRESHOLD VALUE CALCULATED BY THE CONVENTIONAL METHOD AND THE COMPENSATION VALUE TO DETERMINE A COMPENSATED THRESHOLD VALUE:AND A DIGITIZATION CIRCUIT (32),FOR DIGITIZATION THE SIGNAL BY USING THE THRESHOLD VALUE DETERMINED BY THE THRESHOLD VALUE DETERMINER.OPTIONALLY AN INTERPOLATOR (24) MAY BE USED TO OBTAIN MORE ACCURATE PEAK VALUE WITH OCCUR BETWEEN SAMPLE POINT. (FIG.2)

    32.
    发明专利
    未知

    公开(公告)号:AT275753T

    公开(公告)日:2004-09-15

    申请号:AT01947656

    申请日:2001-07-06

    Applicant: IBM

    Abstract: A servo system and method position a head laterally with respect to magnetic tape longitudinal defined servo bands arranged in a longitudinally shifted pattern for identification, and separated by data tracks. A servo controller responds to a loss of lateral position, sensing an estimated longitudinal position of the magnetic tape. If the estimated longitudinal position is within a predetermined distance of an end of the tape, the servo controller operates a drive to continuously move the tape away from the sensed end. The servo controller senses a home lateral position sensor to determine whether a compound actuator is within a predetermined distance of the edge of the magnetic tape. If so, it operates the coarse actuator portion of the compound actuator to move laterally away from the edge of the magnetic tape; else, to move toward the edge. The servo controller senses a dual servo sensor to detect any two of the defined servo bands; and, upon sensing any two of the defined servo bands, detects the longitudinal shift to identify which ones of the two defined servo bands have been detected.

    Method and position control for a servo system for positioning a head laterally with respect to defined servo tracks

    公开(公告)号:AU6930301A

    公开(公告)日:2002-02-25

    申请号:AU6930301

    申请日:2001-07-06

    Applicant: IBM

    Abstract: A method and position control for a servo system for positioning a head laterally with respect to defined servo tracks. The servo system comprises a servo sensor and detector for sensing lateral position of the head and a compound actuator having a fine actuator portion and a coarse actuator portion. The position control provides position indications for the coarse actuator portion, which may comprise a table relating predetermined nominal lateral position indications to the defined servo tracks. The position control positions the coarse actuator portion at an estimated position with respect to the defined servo tracks, and responds to the servo sensor to determine which servo track is closest to the estimated position. The position control sets the coarse actuator portion position indication to the predetermined nominal lateral position indication of the closest defined servo track, e.g., by looking it up in the table. This thereby corrects the indication of the position of the coarse actuator portion.

    Data set to recording media registration and synchronization

    公开(公告)号:AU4599000A

    公开(公告)日:2000-12-12

    申请号:AU4599000

    申请日:2000-05-18

    Applicant: IBM

    Abstract: A system and method for precisely registering and synchronizing data sets on a recording media having a prerecorded servo pattern. The recording media is subject to continuing movement for reading and/or writing the data sets, interrupted by stopping at the end of a selected data set and restarting. During the continuing movement of the recording media, a detector coupled to the servo system continuously reads linear position registration data modulated into the prerecorded servo pattern. An interpolator interpolates the prerecorded registration data to provide precision registration information for the data sets. Upon the drive stopping the recording media, then back hitching the media and the movement restarting, selected read and interpolated registration information is provided. The detector again reads and interpolates the prerecorded registration data, and a comparator compares the again read and interpolated registration information to the provided read and interpolated registration information and any predetermined offset, and indicates a comparison match. A data formatter coupled to the comparator, responsive to the comparison match indication, synchronizes the reading and/or writing of data sets on the recording media.

    Acquisition of highly variable data frequency by digital edge processing

    公开(公告)号:SG70149A1

    公开(公告)日:2000-01-25

    申请号:SG1999000142

    申请日:1999-01-22

    Applicant: IBM

    Abstract: Disclosed is a digital edge processor frequency control for estimating the center frequency of a recorded signal having a known format, such as data recorded on a CLV optical disk or on magnetic tape. The read channel includes a sampling detector which samples the recorded signal at a known rate to provide edge position signals (PAT) indicating the location of recorded pulse edges. An edge pattern identifier detects whether the edge signals of the recording signal match a predetermined element of the known format. Examples of predetermined elements include a pulse of a known length and whose edges are spaced a known distance, a predetermined pulse pattern, or a pulse or pattern at a known location. An interval counter is coupled to the pattern identifier for measuring the interval length between the edges of the matching pulse or pattern in units of the sample length. A center frequency estimator calculates the period of the center frequency of the matching edges by relating the matching edge interval length to a predetermined nominal wave length for the predetermined element of the known format. The result is a Tau that is used to establish the center frequency for the digital PLL.

    Electronic mail display program, method, device, and system
    36.
    发明专利
    Electronic mail display program, method, device, and system 有权
    电子邮件显示程序,方法,设备和系统

    公开(公告)号:JP2009175987A

    公开(公告)日:2009-08-06

    申请号:JP2008013156

    申请日:2008-01-23

    Inventor: TSURUTA KAZUHIRO

    CPC classification number: H04L51/08 G06Q10/107

    Abstract: PROBLEM TO BE SOLVED: To provide a technology for facilitating the management of an attachment file attached to electronic mail. SOLUTION: When receiving electronic mail with an attachment file, a client device acquires attachment position information in the electronic mail text, and stores this in association with the identifier of the electronic mail. When receiving an instruction to do electronic mail display or the like from a user, the client device arranges graphics showing the attachment file of the electronic mail on a child screen to be displayed by reducing the screen of a parent screen for displaying electronic mail based on the corresponding attachment position information, and displays the child screen together with the parent screen. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种便于管理附着在电子邮件上的附件文件的技术。

    解决方案:客户端设备在接收到附件文件的电子邮件时,获取电子邮件文本中的附件位置信息,并将其与电子邮件的标识符相关联存储。 当从用户接收到进行电子邮件显示等的指示时,客户端装置将显示电子邮件的附件文件的图形排列在子屏幕上以通过减少用于显示电子邮件的母屏幕的屏幕来显示 相应的附件位置信息,并与父屏幕一起显示子屏幕。 版权所有(C)2009,JPO&INPIT

    Controller for controlling data copy between storage devices, method, program, and storage system
    37.
    发明专利
    Controller for controlling data copy between storage devices, method, program, and storage system 有权
    用于控制存储设备,方法,程序和存储系统之间的数据复制的控制器

    公开(公告)号:JP2009098941A

    公开(公告)日:2009-05-07

    申请号:JP2007269971

    申请日:2007-10-17

    Abstract: PROBLEM TO BE SOLVED: To provide a technique for selecting the optimum storage device among the plurality of storage devices as the copy or movement source of data.
    SOLUTION: A controller for connecting the different kinds of storage devices includes: a performance information storage part for storing performance information of each storage device; a list storage part for storing the list of data in each storage device; a monitor part for monitoring the load states of each storage device and the controller; a detecting part; an estimating part; and a determining part. When data is copied, etc., with respect to a certain storage device, the detecting part detects the storage devices for storing the data to be copied, based on the list. The estimating part estimates copying time with respect to the detected each storage device, based on performance information and load information. The determining part determines the storage device to be the copy source, based on the estimation result.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于选择多个存储装置中的最佳存储装置作为数据的复制或移动源的技术。 解决方案:用于连接不同种类的存储设备的控制器包括:性能信息存储部分,用于存储每个存储设备的性能信息; 列表存储部,用于存储每个存储装置中的数据列表; 用于监视每个存储设备和控制器的负载状态的监视器部分; 检测部 估计部分; 和决定部分。 当相对于某个存储装置复制数据等时,检测部分根据列表来检测用于存储要复制的数据的存储装置。 估计部分基于性能信息和负载信息来估计相对于检测到的每个存储设备的复制时间。 决定部基于估计结果来确定存储装置为复制源。 版权所有(C)2009,JPO&INPIT

    Electronic mail transmission terminal device, method, and program
    38.
    发明专利
    Electronic mail transmission terminal device, method, and program 有权
    电子邮件传输终端设备,方法和程序

    公开(公告)号:JP2008117153A

    公开(公告)日:2008-05-22

    申请号:JP2006299518

    申请日:2006-11-02

    Inventor: TSURUTA KAZUHIRO

    CPC classification number: H04L51/28 H04L51/30

    Abstract: PROBLEM TO BE SOLVED: To provide an electronic mail transmission device capable of reducing the erroneous transmission of electronic mail even when the confirmation mistake of a destination mail address is generated.
    SOLUTION: This electronic mail transmission device includes: a plurality of totaling means 35 and 52 for, in the case of transmitting mail to an address designated as the transmission destination, totaling reply mail returned with the designated address as the transmission origin in response to mail to be transmitted; a plurality of decision means 52, 53 and 55 for acquiring the reception frequency of the reply mail with the designated address of mail to be newly transmitted as the transmission origin from the totaling means, and for deciding whether or not the designated address is the address having the possibility of erroneous transmission based on the reception frequency; and a notification means 54 for, when it is decided that the designated address is the address having the possibility of erroneous transmission, notifying a user that the designated address is the address having the possibility of erroneous transmission.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供即使当生成目的地邮件地址的确认错误时,也能够减少电子邮件的错误传送的电子邮件发送装置。 解决方案:该电子邮件发送装置包括:多个总计装置35和52,在将邮件发送到指定为发送目的地的地址的情况下,将以指定地址返回的合计回复邮件作为发送来源, 对要发送的邮件的回复; 多个判定装置52,53和55,用于从合计装置获取作为发送起始地新发送的指定邮件地址的回复邮件的接收频率,并且用于判定指定地址是否是地址 具有基于接收频率的错误发送的可能性; 以及通知装置54,当确定指定地址是具有错误发送可能性的地址时,通知用户该指定地址是具有错误发送可能性的地址。 版权所有(C)2008,JPO&INPIT

    ACQUISITION OF DATA FREQUENCY HAVING HIGH VARIABILITY BY DIGITAL EDGE PROCESSING

    公开(公告)号:JPH11317028A

    公开(公告)日:1999-11-16

    申请号:JP1266999

    申请日:1999-01-21

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a frequency controlling device with digital edge processor for estimating center frequencies of recorded signals having known formats of data recorded on a CLV optical disk or a magnetic tape or the like. SOLUTION: A read-in channel 110 includes a sampling detector 118 which supplies an edge position signal (PAT) indicating positions or recorded pulse edges by sampling a recorded signal at a known rate. An edge pattern identifying device being in a frequency controlling device 65 detects whether the edge signal of the recorded signal matches a presribed element of known format or not. There are, for example, a pulse having a prescribed length in which edges are opened with a prescribed interval, a prescribed pulse pattern or a pulse or a pattern having a known position in examples of the prescribed elements. An interval counter is connected to the pattern identifying device and measures the length of the interval between edges of a coincident pulse or pattern by making the length of a sample a unit.

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