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1. 发明授权

US5420730A Servo data recovery circuit for disk drive having digital embedded sector servo 失效
标题翻译：具有数字嵌入式扇区伺服的磁盘驱动器的伺服数据恢复电路
公开(公告)号：US5420730A
公开(公告)日：1995-05-30
申请号：US180096
申请日：1994-01-11
申请人： Ronald R. Moon , Daniel E. Barnard
发明人： Ronald R. Moon , Daniel E. Barnard
IPC分类号： G11B5/596 , G11B20/12
CPC分类号： G11B5/5965 , G11B20/1258 , G11B5/59655 , G11B2020/10916 , G11B2020/1282 , G11B2020/1284
摘要： A method and apparatus are provided for recovering servo information in a disk drive for positioning a data transducer head relative to concentric data tracks wherein the head reads user data encoded in a predetermined data code and reads servo information within plural servo sectors embedded in each data track defined on a storage surface of a rotating disk. The data tracks are arranged in plural groups of concentric tracks within concentric zones wherein each zone has a user data transfer rate selected in relation to disk radius, the servo information being recorded in at least three patterns within each embedded servo sector: a servo sync pattern, a user data code violating pattern, and a servo data bit pattern. A servo data recovery circuit implements the method comprising the steps of:timing expected arrival of a servo sector with a sector timer,at the expected arrival of the servo sector detecting a said servo sync pattern with a servo sync pattern detector,detecting at least one said user data code violating pattern with a user data code violating pattern detector,detecting recurrent servo data bit patterns as binary data bits with a data reader,determining presence of a servo address mark with a master state machine following detection of said at least one user data code violating pattern,upon detection of a servo address mark, restarting said sector timer,accumulating within the master state machine the detected binary data bits in order to detect a track identification number, andproviding the track identification number to a head position servo loop for use in positioning the head relative to the data tracks during track seeking operations of the disk drive. The data reader forms an independent aspect of the present invention.
摘要翻译：提供了一种方法和装置，用于在盘驱动器中恢复伺服信息，用于相对于同心数据轨道定位数据换能器头，其中头部读取以预定数据代码编码的用户数据，并读取嵌入每个数据轨道的多个伺服扇区内的伺服信息限定在旋转盘的存储表面上。数据磁道被布置在同心区域内的多组同心轨道中，其中每个区域具有相对于磁盘半径选择的用户数据传输速率，伺服信息以每个嵌入式伺服扇区内的至少三个模式记录：伺服同步模式，用户数据码违反模式，以及伺服数据位模式。伺服数据恢复电路实现该方法，包括以下步骤：在伺服扇区预期到达时用伺服同步模式检测器检测伺服扇区与伺服扇区的预期到达，检测至少一个所述用户数据代码违反模式与用户数据代码违反模式检测器，用数据读取器检测作为二进制数据位的复现伺服数据位模式，在检测到所述至少一个用户之后确定存在伺服地址标记与主状态机数据代码违反模式，在检测到伺服地址标记时，重新启动所述扇区定时器，在主状态机内积累检测到的二进制数据位，以便检测轨道识别号码，并将磁道识别号提供给磁头位置伺服环路用于在磁盘驱动器的磁道寻找操作期间相对于数据磁道定位磁头。数据读取器形成本发明的独立方面。

2. 发明授权

US5170299A Edge servo for disk drive head positioner 失效
标题翻译：用于磁盘驱动头定位器的边缘伺服器
公开(公告)号：US5170299A
公开(公告)日：1992-12-08
申请号：US569065
申请日：1990-08-17
申请人： Ronald R. Moon
发明人： Ronald R. Moon
IPC分类号： G11B21/10 , G11B5/596
CPC分类号： G11B5/59655
摘要： A method for determining the position of a data transducer head within one data track of a rotating data storage disk within a disk drive includes the steps of:providing at least one prerecorded servo sector within the data track, the servo sector including first occurring servo burst having one longitudinal burst edge located substantially congruent with a centerline of the one track, and having another longitudinal burst edge located substantially congruent with a centerline of a second track adjacent to the one track, and second servo burst having longitudinal burst edges substantially congruent with the track boundaries of the one track.detecting the presence of the sector as it passes by the data transducer head,sampling with the data transducer head and holding peak amplitude of the first servo burst,sampling with the data transducer head and holding peak amplitude of the second servo burst,comparing held first burst amplitude with a predetermined value to determine if the data transducer head has passed over a linear edge portion thereof, and if so, determining from the held first burst amplitude the position; and if not, determining from the held second burst amplitude the position of the data transducer head relative to the one track.

3. 发明授权

US5291355A Micro miniature hard disk drive 失效
标题翻译：微型微型硬盘驱动器
公开(公告)号：US5291355A
公开(公告)日：1994-03-01
申请号：US850443
申请日：1992-03-10
申请人： Michael R. Hatch , Ronald R. Moon , Klaus-Peter Deyring , James A. McDonald, III , Thomas J. Huber , Gregg J. Uhlendorf , Daniel E. Barnard , Bryan T. Silbermann , Philip L. Steiner , Robert P. Cloutier , Robert J. Kobliska
发明人： Michael R. Hatch , Ronald R. Moon , Klaus-Peter Deyring , James A. McDonald, III , Thomas J. Huber , Gregg J. Uhlendorf , Daniel E. Barnard , Bryan T. Silbermann , Philip L. Steiner , Robert P. Cloutier , Robert J. Kobliska
IPC分类号： G11B5/012 , G11B5/54 , G11B20/12 , G11B25/04 , G11B33/12 , G11B33/14 , G11B17/02
CPC分类号： G11B25/043 , G11B20/1252 , G11B33/1446 , G11B5/54
摘要： A hard disk drive for a computer system including a head disk assembly with a disk platter of approximately one-and-eight-tenths-inch in diameter capable of storing more than forty megabytes. In an embodiment, data tracks on each data surface of the platter are spaced at approximately 2,558 tracks per inch and each data track has approximately 36,000 flux changes per inch. An actuator positions a pair of read/write heads on each platter surface using a voice coil motor to position the heads over a cylinder. A magnetic actuator latch attaches to another magnet on the actuator and locks the heads in a parked position at the innermost diameter of the platter. A spindle motor rotates the platter at approximately 5,400 revolutions per minute. A base plate, with a gasketed surface and a raised lip, hermetically seals with a cover to the base plate such that the platter, the actuator, the actuator latch, and the spindle motor are all contained within. The cover carries a breather filter and recirculating air filter. The raised lip on the base plate prevents direct electrical interference from passing between the base plate and the cover.
摘要翻译：一种用于计算机系统的硬盘驱动器，包括具有直径约为1/8至1/8英寸的盘片的磁头盘组件，其能够存储40多兆字节。在一个实施例中，盘的每个数据表面上的数据轨迹以每英寸大约2,558轨道间隔开，并且每个数据轨道每英寸具有约36,000个通量变化。致动器使用音圈马达在每个盘片表面上定位一对读/写头，以将磁头定位在气缸上。磁性致动器闩锁附接到致动器上的另一个磁体，并将磁头锁定在盘片的最内部直径处的停放位置。主轴电机以每分钟约5400转的速度旋转盘片。具有垫圈表面和凸起唇缘的基板与盖板密封地密封到基板上，使得盘片，致动器，致动器闩锁和主轴马达都被包含在其中。盖子带有通气过滤器和循环空气过滤器。基板上的凸起唇缘可防止直接的电气干扰通过基板和盖板之间。

4. 发明授权

US5255136A High capacity submicro-winchester fixed disk drive 失效
标题翻译：高容量亚微温芯固定磁盘驱动器
公开(公告)号：US5255136A
公开(公告)日：1993-10-19
申请号：US710171
申请日：1991-06-04
申请人： Michael G. Machado , Ronald R. Moon , Thomas A. Tacklind , William G. Moon , Bruce R. Peterson , Clifford M. Gold , Daniel E. Barnard , James H. Do
发明人： Michael G. Machado , Ronald R. Moon , Thomas A. Tacklind , William G. Moon , Bruce R. Peterson , Clifford M. Gold , Daniel E. Barnard , James H. Do
IPC分类号： G11B5/596 , G11B20/18 , H03M13/15 , G06F1/00 , G11B5/584
CPC分类号： G11B5/59655 , G11B20/1833 , H03M13/151
摘要： A miniature disk drive achieves storage densities of at least approximately 1700 tracks per inch per storage surface of a storage disk defining a series of radially extensive servo sectors embedded within circumferential zones of data tracks. The sectors are recorded at a constant data transfer rate while each zone has a data transfer rate adapted to disk radius. The drive includes a head and head positioner, a read preamplifier for amplifying analog signals read from, and for amplifying signals to be written to, a storage surface. A circuit board carries drive electronics including a read channel, a servo processing circuit for recovering head location information from the servo sectors, a data block sequencer for sequencing data blocks between a buffer and the storage surface, a buffer memory controller for controlling the buffer, a bus level interface circuit for transferring data blocks between the buffer and a host computer, and a programmed digital controller which functions within a head position servo loop and which also controls the sequencer, buffer controller and bus level interface circuit. As one feature, the servo sectors split data blocks into segments. Segment byte counts in each data block header are used by the sequencer automatically to assemble the segments into data blocks during read and to divide the blocks into segments during write. A single VLSI circuit including the sequencer, servo processing circuit, memory controller and an interface to the microcontroller is disclosed.
摘要翻译：微型磁盘驱动器实现存储盘的每个存储表面至少约1700个磁道的存储密度，该存储盘定义嵌入在数据磁道的周边区域内的一系列径向扩展的伺服扇区。扇区以恒定的数据传输速率进行记录，而每个区域具有适用于磁盘半径的数据传输速率。驱动器包括头和头定位器，用于放大从要写入的存储表面读取的信号和用于放大要写入的信号的读取前置放大器。电路板载有包括读通道的驱动电子装置，用于从伺服扇区恢复头部位置信息的伺服处理电路，用于对缓冲器和存储表面之间的数据块进行排序的数据块定序器，用于控制缓冲器的缓冲存储器控制器，用于在缓冲器和主机之间传送数据块的总线电平接口电路，以及在头位置伺服环路内起作用并且还控制定序器，缓冲器控制器和总线电平接口电路的编程数字控制器。作为一个特征，伺服扇区将数据块分割成段。每个数据块头部中的段字节计数自动由片段使用，以便在读取期间将段组合成数据块，并在写入期间将块划分为段。公开了包括定序器，伺服处理电路，存储器控制器和到微控制器的接口的单个VLSI电路。

5. 发明授权

US5111349A Digital servo system for moving body by a distance equal to an integral multiple of a predetermined pitch 失效
标题翻译：用于移动体的数字伺服系统等于预定间距的整数倍的距离
公开(公告)号：US5111349A
公开(公告)日：1992-05-05
申请号：US307864
申请日：1989-02-07
申请人： Ronald R. Moon
发明人： Ronald R. Moon
IPC分类号： G05B19/416 , G05D3/12 , G11B5/55 , G11B21/08
CPC分类号： G11B21/085 , G05B19/416 , G11B5/5547
摘要： A digital servo system for moving a body, such as the magnetic head of a disk drive, by a distance equal to an integral multiple of a predetermined pitch includes a velocity control unit for causing the body to move at maximum acceleration to a predetermined maximum velocity during a first acceleration mode, to move at the maximum velocity during an optional first coast mode, to decelerate from the maximum velocity to an optional intermediate velocity during a first deceleration mode, to move at the intermediate velocity during an optional second coast mode, and to declerate at the maximum acceleration/deceleration rate to zero velocity during a second deceleration mode. The maximum acceleration/deceleration rate is set equal to a rational multiple of the pitch divided by the square of the sampling time of the digital servo system. Respective first through fifth durations of the acceleration mode, first optional coast mode, first deceleration mode, second optional coast mode, and second deceleration mode are suitably set so that the body travels by a distance equal to an integral multiple of the pitch.
摘要翻译：用于使诸如磁盘驱动器的磁头的主体移动等于预定间距的整数倍的距离的数字伺服系统包括速度控制单元，用于使身体以最大加速度移动到预定最大速度在第一加速模式期间，在可选的第一滑行模式期间以最大速度移动，在第一减速模式期间从最大速度减速到可选的中间速度，以在可选的第二滑行模式期间以中间速度移动，以及在第二减速模式下以最大加速/减速速率逐渐变为零速度。最大加速/减速率设置为等于音调的有理倍数除以数字伺服系统采样时间的平方。适当地设定加速模式，第一可选滑行模式，第一减速模式，第二可选滑行模式和第二减速模式的相应的第一到第五持续时间，使得身体行进距离等于音高的整数倍。

6. 发明授权

US4783705A High capacity disk file with embedded sector servo and SCSI interface 失效
标题翻译：具有嵌入式扇区伺服和SCSI接口的大容量磁盘文件
公开(公告)号：US4783705A
公开(公告)日：1988-11-08
申请号：US52012
申请日：1987-05-19
申请人： Ronald R. Moon , Michael G. Machado , Thomas G. Cooper , Patrick M. Weiher , Curtis H. Bruner , Mark E. Strysko , Gregg J. Uhlendorf , Steven G. Campbell , Tuong T. Quan , Hoa V. Luong
发明人： Ronald R. Moon , Michael G. Machado , Thomas G. Cooper , Patrick M. Weiher , Curtis H. Bruner , Mark E. Strysko , Gregg J. Uhlendorf , Steven G. Campbell , Tuong T. Quan , Hoa V. Luong
IPC分类号： G11B5/55 , G11B5/596 , G06F13/00
CPC分类号： G11B5/5965 , G11B5/5521 , Y10S360/902 , Y10S360/903
摘要： A disk data storage subsystem includes a head and disk assembly. A plurality of sectors in data tracks include a servo portion containing a prerecorded pattern of a plurality of repeating, time staggered, non-phase-coherent bursts, each burst having a predetermined integral fraction radial offset relative to the other bursts. The head is positionable relative to the tracks by a voice coil in response to information derived from a servo portion, a programmed microcontroller supervisor receives operational data storage and retrieval commands from a host system with which the subsystem is operationally associated and controls the position of the head during track seeking and following operations in response to servo information read by the head from each servo portion and further in response to the commands, an interface, with an SCSI interface controller, under the control of the microcontroller supervisor receives the commands and data blocks from the host system and for sending commands, status words and data blocks to the host system, a data sequencer and memory controller under the control of the microcontroller manages flow of data blocks to and from the disk via the head.
摘要翻译：磁盘数据存储子系统包括磁头和磁盘组件。数据轨道中的多个扇区包括包含多个重复的，时间交错的非相位相干突发的预先记录的模式的伺服部分，每个突发具有相对于其他脉冲串的预定的积分分数径向偏移。响应于从伺服部分获得的信息，头部可通过音圈相对于轨道定位，编程的微控制器主管从主机系统接收操作数据存储和检索命令，该主机系统与该子系统可操作地相关联并且控制该位置在跟踪操作期间响应于来自每个伺服部分的磁头读取的伺服信息并进一步响应于这些命令，在微控制器主管的控制下，具有SCSI接口控制器的接口接收命令和数据块从主机系统和用于向主机系统发送命令，状态字和数据块，在微控制器的控制下的数据定序器和存储器控制器通过磁头管理到磁盘的数据块的流动。

7. 发明授权

US5339207A Servo system for providing increased recording density and improved operation of the AGC circuitry 失效
标题翻译：用于提供增加的记录密度和改进的AGC电路的操作的伺服系统
公开(公告)号：US5339207A
公开(公告)日：1994-08-16
申请号：US850326
申请日：1992-03-10
申请人： Ronald R. Moon , Gregg J. Uhlendorf , Daniel E. Barnard
发明人： Ronald R. Moon , Gregg J. Uhlendorf , Daniel E. Barnard
IPC分类号： G11B21/10 , G11B5/55 , G11B5/596 , G11B19/02 , G11B20/12
CPC分类号： G11B19/02 , G11B20/1252 , G11B5/5534 , G11B5/59633 , G11B2020/1282 , G11B5/59622
摘要： A servo system for use in a magnetic recording media is disclosed, with the system utilizing short and long address tracks in a predetermined pattern to increase the usable data storage space on the media. A special pattern is utilized following the A and B BURST patterns for each track on the disk to assist in calibration of the drive. In addition, a special pattern is provided preceding the track address portion of the sectors to identify the associated track address as being a long address, a short address or as the origin sector.
摘要翻译：公开了一种用于磁记录介质的伺服系统，其中系统利用预定图案中的短和长地址轨道来增加介质上的可用数据存储空间。在磁盘上的每个磁道的A和B BURST模式之后采用特殊模式，以帮助校准驱动器。此外，在扇区的轨道地址部分之前提供特殊模式，以将相关联的轨道地址识别为长地址，短地址或起始扇区。

8. 发明授权

US5303101A Active magnetic latch for disk drive and method 失效
标题翻译：用于磁盘驱动器的主动磁锁和方法
公开(公告)号：US5303101A
公开(公告)日：1994-04-12
申请号：US851372
申请日：1992-03-10
申请人： Michael R. Hatch , Ronald R. Moon , Robert P. Cloutier
发明人： Michael R. Hatch , Ronald R. Moon , Robert P. Cloutier
IPC分类号： G11B21/12 , G11B5/54 , G11B21/02 , G11B21/22
CPC分类号： G11B5/54
摘要： When a rotary-actuator voice coil type disk drive is powered down the actuator arm is moved to a parking position against an I.D. stop by a disk spindle motor back EMF, resulting from the spinning down of the spindle motor. Current is applied by the back EMF through a delay circuit to a latch arm voice coil on one end of a latch arm and forming part of a magnetic circuit including a drive permanent magnet on a ferrous base plate and a ferrous upper plate. Resultant movement of the latch arm overcomes a spring bias of a torsion spring extending between the base plate and pivoted latch arm normally keeping the latch arm in an unlatched position. A latch permanent magnet extends from the other end of the latch arm and is brought into spaced proximity, but not contact, with a ferrous member extending from the actuator arm so that the magnetic force therebetween holds the actuator arm against the I.D. stop in latched position to withstand high shock loadings. Powering the rotary actuator voice coil motor up overcomes the magnetic force and allows the biased torsion spring to move the latch arm to the unlatched position without resultant loss of data storage area.
摘要翻译：当旋转致动器音圈型磁盘驱动器断电时，致动器臂被移动到与I.D.相对的停车位置。由主轴电机反转的磁盘主轴电机停止，由主轴电机的下降引起。反电动势通过延迟电路将电流施加到锁臂的一端上的锁臂音圈，并在铁基板和铁上板上形成包括驱动永久磁铁的磁路的一部分。闩锁臂的产生的运动克服了在基板和枢转的闩锁臂之间延伸的扭转弹簧的弹簧偏压，通常将闩锁臂保持在解锁位置。闩锁永磁体从闩锁臂的另一端延伸并且与从致动器臂延伸的铁构件隔开接近但不接触，使得其间的磁力将致动器臂保持抵靠于I.D. 停止在锁定位置以承受高冲击载荷。向旋转执行器音圈电机供电克服了磁力，并允许偏置的扭转弹簧将闩锁臂移动到解锁位置，而不会导致数据存储区域的损失。

9. 发明授权

US4538099A Amplifier circuit 失效
标题翻译：放大器电路
公开(公告)号：US4538099A
公开(公告)日：1985-08-27
申请号：US458450
申请日：1983-01-17
申请人： Ronald R. Moon
发明人： Ronald R. Moon
IPC分类号： G11B21/08 , H03F3/26 , H03F3/30 , G05F1/00
CPC分类号： G11B21/085 , H03F3/26 , H03F3/3081
摘要： A driver amplifier circuit for an electromechanical position translator having two coils of substantially equal inductance and resistance is disclosed. The circuit includes an input for a control voltage representing desired translator position and a reference voltage, a very low value reference resistor series connected between the two coils, differentially driven push pull amplifiers connected to drive the coils, and two equal value feedback resistors connected from the reference resistor to inverting inputs of the amplifiers, whereby absolute magnitude of output voltage equals the input voltage plus twice the reference voltage, and wherein zero differential input volts yields zero current flow through the coils.
摘要翻译：公开了一种用于机电位置转换器的驱动放大器电路，其具有基本上相等的电感和电阻的两个线圈。该电路包括用于表示所需转换器位置和参考电压的控制电压的输入，连接在两个线圈之间的极低值参考电阻器串联，连接到驱动线圈的差分驱动推挽放大器和两个等值反馈电阻器所述参考电阻器用于反相放大器的输入端，由此输出电压的绝对幅度等于输入电压加上参考电压的两倍，并且其中零差分输入电压产生零电流流过线圈。

10. 发明授权

US5418657A Track address detecting means by HDD sector servo method 失效
标题翻译：通过HDD扇区伺服方式跟踪地址检测手段
公开(公告)号：US5418657A
公开(公告)日：1995-05-23
申请号：US276272
申请日：1988-11-23
申请人： Michael G. Machado , Ronald R. Moon , Richard K. Oswald , Avraham Perahia
发明人： Michael G. Machado , Ronald R. Moon , Richard K. Oswald , Avraham Perahia
IPC分类号： G11B20/10 , G11B20/12 , G11B20/14 , G11B21/08 , G11B27/10 , G11B27/30 , G11B5/09 , G11B15/18
CPC分类号： G11B21/083 , G11B20/1426 , G11B27/3027 , G11B20/12
摘要： A disk file subsystem is disclosed which utilizes a track address decoding circuit which converts the track address which is recorded on the magnetic media in Gray code according to a 1/6 (2,8) run-length-limited recording code to its corresponding binary track address.
摘要翻译：公开了一种磁盘文件子系统，其利用轨道地址解码电路，该轨道地址解码电路根据1/6（2,8）游程长度限制记录码将格雷码中记录在磁性介质上的轨道地址转换为其对应的二进制轨道地址。

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