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1. 发明授权

US06859340B2 Method and device for retracting an actuator 失效
标题翻译：用于缩回执行器的方法和装置
公开(公告)号：US06859340B2
公开(公告)日：2005-02-22
申请号：US10021883
申请日：2001-12-13
申请人： Rodney Brittner , Paul J. Throckmorton
发明人： Rodney Brittner , Paul J. Throckmorton
IPC分类号： G11B5/54 , G11B21/12 , G11B21/02
CPC分类号： G11B21/12 , G11B5/54
摘要： An actuator retract system and method for moving read/write heads from data regions on discs to non-data locations in a disc drive is disclosed. The non-data locations may be on or in close proximity to the discs. The non-data locations may be a landing zone or a load/unload ramp. At disc drive power-down, power generated from the rotational inertia in rotating discs is used to supply a current to a coil of a voice coil motor operably coupled to the actuator. During such power-down operation, a desired velocity is maintained using acceleration or deceleration, when necessary. The current generates an electric field around the coil that interacts with a magnetic field in the voice coil motor to move the actuator such that the read/write heads are retracted to the non-data location.
摘要翻译：公开了一种用于将读/写头从盘上的数据区移动到盘驱动器中的非数据位置的致动器缩回系统和方法。非数据位置可以在光盘上或靠近光盘。非数据位置可以是着陆区域或加载/卸载斜坡。在磁盘驱动器掉电时，由旋转盘中的旋转惯性产生的功率用于向可操作地耦合到致动器的音圈电机的线圈提供电流。在这种断电操作期间，当需要时，使用加速或减速来保持期望的速度。电流产生线圈周围的电场，该电场与音圈电机中的磁场相互作用以使致动器移动，使得读/写头缩回至非数据位置。

2. 发明授权

US06304398B1 Dual modulo gray code positioning system 失效
标题翻译：双模灰码定位系统
公开(公告)号：US06304398B1
公开(公告)日：2001-10-16
申请号：US09374450
申请日：1999-08-14
申请人： Stephen Matthew Gaub , Glen Worstell , Daniel Zaharris , Robert Dale Murphy , Michael Edward Baum , Rodney Brittner
发明人： Stephen Matthew Gaub , Glen Worstell , Daniel Zaharris , Robert Dale Murphy , Michael Edward Baum , Rodney Brittner
IPC分类号： G11B509
CPC分类号： G11B5/59611 , G11B5/59655
摘要： An apparatus and method of reducing the size of a servo burst and thus increasing the disc surface available for data storage is accomplished by uniquely encoding track information in the gray code of a servo burst on a disc. Each track has a unique sequential track identification number assigned to it. A plurality of sets of servo sectors on each track are encoded with a modulo operation of the track identification number for the track each using a unique modulus. Preferably the sectors are grouped into two sets, i.e., even numbered sectors on each track are modulo encoded with a first modulo operation of the track identification number for the track using a first modulus and odd numbered servo sectors on each track are modulo encoded with a second modulo operation of the track identification number for the track using a second modulus. Decoding the absolute track address is accomplished by decoding the modulo numbers and comparing the even sector modulo numbers to the odd numbered sector modulo numbers.
摘要翻译：通过在盘上的伺服脉冲串的灰度码中唯一地编码轨道信息来实现减小伺服脉冲串的大小并从而增加可用于数据存储的盘表面的装置和方法。每个轨道具有分配给它的唯一的顺序轨道标识号。每个轨道上的多组伺服扇区用轨道识别号码的模运算进行编码，每一轨道识别号码使用唯一模数。优选地，扇区被分组成两组，即，使用第一模数对轨道的轨道识别号进行第一模运算，对每个轨道上的偶数扇区进行模数编码，并且每个轨道上的奇数编号的伺服扇区都用使用第二模数对轨道的轨迹识别号进行第二模运算。对绝对磁道地址进行解码是通过解码模数并将偶数扇区模数与奇数扇区模数进行比较来实现的。

3. 发明授权

US07177112B2 Initial learn of adaptive feedforward coefficients 有权
标题翻译：初步了解自适应前馈系数
公开(公告)号：US07177112B2
公开(公告)日：2007-02-13
申请号：US10115384
申请日：2002-04-03
申请人： Christopher Thomas Settje , Khalil B. Dizaji , Michael Edward Baum , Rodney Brittner
发明人： Christopher Thomas Settje , Khalil B. Dizaji , Michael Edward Baum , Rodney Brittner
IPC分类号： G11B5/596
CPC分类号： G11B5/59627
摘要： The present invention reduces the time required for coefficient convergence and thus improves time-to-ready. To that end, the present invention provides an initial learn—preferably non-zero—coefficient. The initial learn coefficient is based on a translation of timing information to position information. One aspect of the present invention uses address marks of a disc then translates them to phase position information. The present invention measures the times between address marks of adjacent servo sectors. Variations between those times is related is related to disc runout, particularly disc eccentricity. Also, the servo sectors are used to identify at which phase the maximum amplitude (or magnitude) of the timing variations occur. This phase information and maximum amplitude are used as variables in determining the initial learn coefficient. The present invention also utilizes a plant model to predetermine a variable. This variable is used in conjunction with the phase and maximum amplitude variables to determine the initial learn coefficient. Other aspects of the present invention use approximations or statistical values to determine the initial learn coefficient. For example, the maximum amplitude can be based on a clearance between an inner diameter of a disc and a spindle. The phase can be based on a value within a range of phases. The plant model can be changed to include assumptions, approximations or other factors.
摘要翻译：本发明减少了系数收敛所需的时间，从而缩短了准备时间。为此，本发明提供初始学习 - 优选非零系数。初始学习系数基于定时信息到位置信息的翻译。本发明的一个方面是使用盘的地址标记然后将它们转换成相位位置信息。本发明测量相邻伺服扇区的地址标记之间的时间。这些时间之间的变化是相关的盘片跳动，特别是光盘偏心率。此外，伺服扇区用于识别在哪个相位发生定时变化的最大振幅（或幅度）。该相位信息和最大幅度用作确定初始学习系数的变量。本发明还利用植物模型预先确定变量。该变量与相位和最大振幅变量结合使用以确定初始学习系数。本发明的其它方面使用近似值或统计值来确定初始学习系数。例如，最大幅度可以基于盘的内径和主轴之间的间隙。相位可以基于相位范围内的值。植物模型可以改变为包括假设，近似或其他因素。

4. 发明授权

US5369285A Method and apparatus for optical detection of cleaning medium in an information storage drive 失效
标题翻译：用于信息存储驱动器中的清洁介质的光学检测的方法和装置
公开(公告)号：US5369285A
公开(公告)日：1994-11-29
申请号：US164762
申请日：1993-12-10
申请人： Steven P. Georgis , Robert Sugar , Rodney Brittner , Thomas D. Fox
发明人： Steven P. Georgis , Robert Sugar , Rodney Brittner , Thomas D. Fox
IPC分类号： G11B5/41 , G11B15/08 , G11B19/12 , G01N21/86 , G01V9/04
CPC分类号： G11B19/12 , G11B15/08 , G11B5/41
摘要： A system (20) and method for identification of medium (41) inserted into an information storage drive optically determines whether the medium is cleaning medium by determining the translucency of the medium. The system includes a dual infra-red LED light source (28) having a controllable intensity as well as BOT and EOT light receivers (30, 32). The medium longitudinally extends between the light source and the light receivers. A medium identification controller (48) determines the type of medium inserted into the information storage drive by progressively ramping the intensity of the light source and determining at what effective driving signal value the light receivers actually receive light through the medium, and by comparing the effective driving signal value for each receiver with a calibrated driving signal value at which the light receiver actually receives light when no medium is inserted.
摘要翻译：用于识别插入到信息存储驱动器中的介质（41）的系统（20）和方法通过确定介质的半透明来光学地确定介质是否是清洁介质。该系统包括具有可控制强度的双重红外LED光源（28）以及BOT和EOT光接收器（30,32）。介质纵向延伸在光源和光接收器之间。介质识别控制器（48）通过逐渐地增加光源的强度来确定插入到信息存储驱动器中的介质的类型，并确定光接收器实际上通过介质接收光的有效驱动信号值，并且通过比较有效的具有校准的驱动信号值的每个接收机的驾驶信号值，在没有介质插入的情况下，光接收器实际接收光。

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