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41. 发明授权

US08767354B1 Data storage device employing cascaded voltage regulators during power failure 有权
标题翻译：在停电期间采用级联稳压器的数据存储设备
公开(公告)号：US08767354B1
公开(公告)日：2014-07-01
申请号：US13314475
申请日：2011-12-08
申请人： Timothy A. Ferris , John R. Agness , Robert P. Ryan
发明人： Timothy A. Ferris , John R. Agness , Robert P. Ryan
IPC分类号： G11B5/00 , G11B33/12
CPC分类号： G11B5/40 , G11B5/012 , G11B5/54
摘要： A data storage device is disclosed comprising a non-volatile memory and control circuitry comprising an interface operable to receive a supply voltage, and a capacitor. An operating voltage regulator converts the supply voltage into an operating voltage used to operate the non-volatile memory. The supply voltage is used to charge the capacitor to a capacitor voltage higher than the supply voltage, and during a power failure, a backup voltage regulator converts the capacitor voltage into a backup voltage substantially equal to the supply voltage. The operating voltage regulator converts the backup voltage into the operating voltage used to operate the non-volatile memory.
摘要翻译：公开了一种数据存储装置，其包括非易失性存储器和控制电路，其包括可操作以接收电源电压的接口和电容器。工作电压调节器将电源电压转换成用于操作非易失性存储器的工作电压。电源电压用于将电容器充电到高于电源电压的电容器电压，并且在电源故障期间，备用电压调节器将电容器电压转换成基本上等于电源电压的备用电压。工作电压调节器将备用电压转换成用于操作非易失性存储器的工作电压。

42. 发明授权

US08630054B2 Systems and methods for data throttling during disk drive power down 有权
标题翻译：在磁盘驱动器断电期间数据限制的系统和方法
公开(公告)号：US08630054B2
公开(公告)日：2014-01-14
申请号：US13239176
申请日：2011-09-21
申请人： George J. Bennett , Steven R. Vasquez , Robert P. Ryan
发明人： George J. Bennett , Steven R. Vasquez , Robert P. Ryan
IPC分类号： G11B15/46
CPC分类号： G06F11/0727 , G11B19/041 , G11B19/2063 , G11B19/2081 , G11B2220/2516 , G11B2220/45 , G11B2220/63
摘要： Some embodiments of the invention are directed to a data storage system that includes a disk and solid-state non-volatile memory (NVM). During a power failure, the data storage system may use back EMF (BEMF) voltage from the spindle motor of the disk to park the heads of the disk and/or store data in the NVM. In one embodiment, a demand regulation circuit regulates loads that use voltage generated from the BEMF. The demand regulation circuit may be used to selectively cause a controller to adjust the rate of programming to the NVM in order to reduce the load. For example, the demand regulation circuit may assert a throttle signal to the controller upon detecting that the voltage generated from the BEMF is below a certain threshold. Programming rate may be throttled, programming cycles may be staggered, and/or programming time may be lengthened. Throttling may enable the use of smaller circuitry.
摘要翻译：本发明的一些实施例涉及包括盘和固态非易失性存储器（NVM）的数据存储系统。在电源故障期间，数据存储系统可以使用来自磁盘的主轴电机的反电动势（BEMF）电压来停放磁盘头和/或将数据存储在NVM中。在一个实施例中，需求调节电路调节使用从BEMF产生的电压的负载。可以使用需求调节电路来选择性地使控制器调整对NVM的编程速率，以便减少负载。例如，当检测到从BEMF产生的电压低于某个阈值时，需求调节电路可以向控制器断言油门信号。编程速率可能会被限制，编程周期可能会交错，和/或编程时间可能会延长。节流可以使用更小的电路。

43. 发明授权

US08054022B1 Reduced acoustic noise during spin-up by driving a spindle motor open loop using sinusoidal signals 有权
标题翻译：通过使用正弦信号驱动主轴电机开环，在旋转期间降低声学噪声
公开(公告)号：US08054022B1
公开(公告)日：2011-11-08
申请号：US12146678
申请日：2008-06-26
申请人： Robert P. Ryan , Brett A. Henne , Steven Nemshick
发明人： Robert P. Ryan , Brett A. Henne , Steven Nemshick
IPC分类号： H02P6/18
CPC分类号： H02P6/182
摘要： A disk drive is disclosed comprising a disk, a head actuated over the disk, and a spindle motor for rotating the disk, wherein the spindle motor comprises a plurality of windings. During a spin-up operation of the disk, a sinusoidal driving signal is applied to each winding of the spindle motor for a spin-up interval, wherein during at least eighty percent of the spin-up interval the sinusoidal driving signals are applied to the windings of the spindle motor open loop.
摘要翻译：公开了一种磁盘驱动器，其包括盘，在盘上致动的头和用于旋转盘的主轴电机，其中主轴电机包括多个绕组。在盘的旋转操作期间，正弦驱动信号被施加到主轴电动机的每个绕组以用于升压间隔，其中在至少百分之八十的升压间隔期间，将正弦驱动信号施加到绕组主轴电机开环。

44. 发明授权

US07548392B1 Disk drive controlling a voice coil motor during an emergency unload 有权
标题翻译：在紧急卸载期间控制音圈电机的磁盘驱动器
公开(公告)号：US07548392B1
公开(公告)日：2009-06-16
申请号：US11804819
申请日：2007-05-21
申请人： Ashok K. Desai , Robert P. Ryan , Hemant Melkote
发明人： Ashok K. Desai , Robert P. Ryan , Hemant Melkote
IPC分类号： G11B21/02
CPC分类号： G11B21/12
摘要： A disk drive is disclosed including a disk, a spindle motor operable to rotate the disk, a head, and a voice coil motor (VCM) operable to actuate the head over the disk, wherein the VCM comprises a voice coil. The disk drive further comprises a capacitor, and a back electromotive force (BEMF) voltage generator operable to generate a BEMF voltage from the spindle motor. The disk drive further comprises switching circuitry operable to connect the voice coil to the capacitor while accelerating the VCM, and to disconnect the voice coil from the capacitor and connect the voice coil to the BEMF voltage while decelerating the VCM.
摘要翻译：公开了一种磁盘驱动器，其包括盘，可操作以旋转盘的主轴马达，头部和可操作以使磁头在盘上致动的音圈马达（VCM），其中VCM包括音圈。磁盘驱动器还包括电容器和可操作以从主轴电机产生BEMF电压的反电动势（BEMF）电压发生器。磁盘驱动器还包括切换电路，其可操作以在加速VCM的同时将音圈连接到电容器，并且将音圈与电容器断开连接，并将音圈连接到BEMF电压同时减速VCM。

45. 发明授权

US06967458B1 Decreasing spin up time in a disk drive by adjusting a duty cycle of a spindle motor PWM signal to maintain constant average input current 有权
标题翻译：通过调整主轴电机PWM信号的占空比来减小磁盘驱动器中的启动时间，以保持恒定的平均输入电流
公开(公告)号：US06967458B1
公开(公告)日：2005-11-22
申请号：US10210399
申请日：2002-07-31
申请人： George J. Bennett , Robert P. Ryan
发明人： George J. Bennett , Robert P. Ryan
IPC分类号： G05B11/28 , G11B19/20
CPC分类号： G11B19/20 , G05B11/28
摘要： A disk drive is disclosed comprising a spindle motor for rotating a disk, wherein the current applied to the spindle motor is controlled by adjusting a duty cycle of a pulse width modulated (PWM) signal. A current sensor generates a current sense signal representing a current flowing from a supply voltage. The current sense signal is integrated to generate an integration signal. The integration signal is compared to a threshold, and the result of the comparison is used to adjust the duty cycle of the PWM signal. In this manner the disk drive draws essentially constant average input current from the supply voltage which decreases the spin up time of the disk.
摘要翻译：公开了一种磁盘驱动器，其包括用于旋转盘的主轴电机，其中通过调整脉宽调制（PWM）信号的占空比来控制施加到主轴电动机的电流。电流传感器产生表示从电源电压流出的电流的电流感测信号。电流感测信号被积分以产生积分信号。积分信号与阈值进行比较，比较结果用于调整PWM信号的占空比。以这种方式，磁盘驱动器从电源电压中获取基本上恒定的平均输入电流，这降低了磁盘的旋转上升时间。

46. 发明授权

US06577465B1 Disk drive comprising spin down circuitry having a programmable signal generator for enhancing power and braking control 有权
标题翻译：包括具有用于增强功率和制动控制的可编程信号发生器的旋转下降电路的磁盘驱动器
公开(公告)号：US06577465B1
公开(公告)日：2003-06-10
申请号：US09585244
申请日：2000-05-31
申请人： George J. Bennett , Robert P. Ryan
发明人： George J. Bennett , Robert P. Ryan
IPC分类号： G11B1518
CPC分类号： G11B19/22 , G11B5/54
摘要： A disk drive is disclosed comprising a disk, a head actuated radially over the disk, and a spindle motor for rotating the disk, the spindle motor comprising a plurality of windings and a rotor rotatable at a variable spin rate, wherein the rotor generates a back EMF (BEMF) voltage across the windings proportional to the spin rate of the rotor. A plurality of switching elements are coupled to the windings, and switch control logic generates switch control signals applied to the switching elements for commutating the spindle motor during normal operation and for generating an internal supply voltage from the BEMF during a spin down mode, the internal supply voltage for parking the head. A programmable signal generator generates a periodic signal, the periodic signal for periodically grounding the windings during the spin down mode in order to boost the internal supply voltage, wherein grounding the windings applies a braking torque to the spindle motor. A programmable register is provided for storing a digital value for adjusting a frequency characteristic of the periodic signal, thereby enhancing power management.
摘要翻译：公开了一种磁盘驱动器，其包括盘，位于盘上径向驱动的磁头和用于旋转磁盘的主轴电机，主轴电动机包括多个绕组和可旋转的可转动速度的转子，其中转子产生一个后部绕组的EMF（BEMF）电压与转子的旋转速率成比例。多个开关元件耦合到绕组，并且开关控制逻辑产生施加到开关元件的开关控制信号，用于在正常操作期间使主轴电机换向，并且在旋转下降模式期间产生来自BEMF的内部电源电压，内部供电电压停放头。可编程信号发生器产生周期性信号，周期信号用于在下降模式期间周期性地接地绕组，以便提升内部电源电压，其中绕组接地对主轴电机施加制动转矩。提供了可编程寄存器，用于存储用于调整周期信号的频率特性的数字值，从而增强电源管理。

47. 发明授权

US06281652B1 Method of using two low-resolution DACS for converting high-resolution digital demands into analog output signals that monotonically drive an actuator motor in a disk drive 失效
标题翻译：使用两个低分辨率DACS将高分辨率数字需求转换为模拟输出信号的方法，该模拟输出信号单调驱动磁盘驱动器中的执行器电机
公开(公告)号：US06281652B1
公开(公告)日：2001-08-28
申请号：US09536067
申请日：2000-03-24
申请人： Robert P. Ryan , George S. Bouchaya
发明人： Robert P. Ryan , George S. Bouchaya
IPC分类号： G05B1118
CPC分类号： H03M1/069 , H03M1/68
摘要： Disclosed is a method in a disk drive that allows the functionality of a single high-resolution DAC to be replicated with a pair of lower-resolution DACs that are operated in a unique manner that provides monotonic behavior and reduces both differential and integral non-linearity. The two lower-resolution DACs take up substantially less space that one higher-resolution DAC when implemented in a semiconductor die. The method combines coarse values from one DAC with fine values from the other DAC to form a combined analog output signal within operational segments that collectively span a range of N-bit demands. The method operates such the operational segments overlap one another by 50 percent, with an endpoint of each operational segment ending near a center of an overlapped operational segment. The method's overlapping relationship tends to cause the combined analog output voltage to vary monotonically, by maintaining the X-bit command and only varying the Y-bit command whenever possible for small changes in the combined analog output signal.
摘要翻译：公开了一种磁盘驱动器中的方法，其允许单个高分辨率DAC的功能被复制为一对以提供单调行为的独特方式操作的较低分辨率DAC，并且减小差分和积分非线性。两个较低分辨率DAC在半导体芯片中实现时，占用较小分辨率DAC的空间。该方法将来自一个DAC的粗略值与来自另一个DAC的精细值相结合，以形成共同跨越N位需求范围的运行段内的组合模拟输出信号。该方法操作这样的操作段彼此重叠50％，每个操作段的端点在重叠操作段的中心附近结束。该方法的重叠关系倾向于导致组合的模拟输出电压单调变化，通过保持X位指令，并且仅在可能的情况下改变Y位指令以对组合的模拟输出信号进行小的改变。

48. 发明授权

US5978378A Method and apparatus for VLAN support 失效
标题翻译：支持VLAN的方法和设备
公开(公告)号：US5978378A
公开(公告)日：1999-11-02
申请号：US927641
申请日：1997-09-11
申请人： Stephen L. Van Seters , Ryan T. Ross , Leonard Schwartz , David C. Ready , John A. Flanders , Robert P. Ryan , William D. Townsend
发明人： Stephen L. Van Seters , Ryan T. Ross , Leonard Schwartz , David C. Ready , John A. Flanders , Robert P. Ryan , William D. Townsend
IPC分类号： H04L12/46 , H04L12/28
CPC分类号： H04L12/4645
摘要： Logic circuits are employed in a telecommunications bridge/router device to examine a received frame to determine which VLAN, if any, the frame is associated with. The protocol type, receive port identification, and receive VLAN tag are employed to determine the transmit port identification and transmit VLAN tag. A predefined table indicates which ports within the bridge/router are associated with the VLAN. The frame is excluded from transmission through the ports that are not associated with members of the respective the VLAN.
摘要翻译：电信桥/路由器设备中使用逻辑电路来检查接收到的帧以确定该帧与哪个VLAN相关联。采用协议类型，接收端口标识和接收VLAN标签来确定发送端口标识和发送VLAN标签。一个预定义的表格指出了网桥/路由器中哪些端口与VLAN相关联。通过不与相应VLAN的成员关联的端口将该帧排除在传输之外。

49. 发明授权

US5725268A Pet waste retrieval and disposal device 失效
标题翻译：宠物废物回收处理装置
公开(公告)号：US5725268A
公开(公告)日：1998-03-10
申请号：US732919
申请日：1996-10-17
申请人： Joseph C. Besasie , Robert P. Ryan
发明人： Joseph C. Besasie , Robert P. Ryan
IPC分类号： E01H1/12 , A01K29/00
CPC分类号： E01H1/1206 , E01H2001/126
摘要： A device for retrieving and disposing of pet feces is provided which includes a bag formed of flexible sheet material having an open end and a closed end. A tray having a bottom panel is attached to the closed end of the bag. The panel has a central score line, which forms a hinge line and side walls hingedly connected to each side of the panel on opposite sides of the score line. The side walls are pivotable, from a transportation and storage position folded against the bottom panel, to a use position normal to the panel. Thus the tray can be manipulated manually from within the bag to retrieve pet feces, and the bag subsequently inverted thereover to enclose the tray and the feces therein.
摘要翻译：提供了一种用于检索和处置宠物粪便的装置，其包括由具有开口端和封闭端的柔性片材形成的袋。具有底板的托盘附接到袋的封闭端。面板具有中心刻痕线，其形成铰链线，侧壁与刻痕线相对侧的面板的每一侧铰接地连接。侧壁可从与底板折叠的运输和存放位置枢转到与面板垂直的使用位置。因此，托盘可以从袋内手动地操作以检索宠物粪便，并且袋随后在其上倒置以将托盘和粪便包围在其中。

50. 发明授权

US5720561A Printer coil temperature sensor and method 失效
标题翻译：打印机线圈温度传感器和方法
公开(公告)号：US5720561A
公开(公告)日：1998-02-24
申请号：US558152
申请日：1995-11-15
申请人： Robert P. Ryan , Gordon B. Barrus , Tiet Pham
发明人： Robert P. Ryan , Gordon B. Barrus , Tiet Pham
IPC分类号： B41J9/52 , B41J2/30
CPC分类号： B41J9/52
摘要： A line printer having a hammerbank with hammers that are held by a permanent magnet and released by electrically driven coils. The temperature of the coils is determined by the relative resistance of the coils to provide an output equivalent to the temperature of said coils. The resistance is determined as a function of the current through the coils or voltage of the coils which is converted from an analog to a digital value. The attendant method of determining temperature of the coils in the hammerbank is by comparing a pre-established current or voltage value based upon a pre-established temperature of the coil with the current passing through the coil during operation of the hammerbank. The comparison of the current passing through the coil during operation with the pre-established current is provided to a controller for controlling the printer in response to the current differential between the currents which is in turn a function of the operating temperature.
摘要翻译：一种具有锤形锤的线打印机，其具有由永磁体保持并由电驱动线圈释放的锤。线圈的温度由线圈的相对电阻确定，以提供与所述线圈的温度相当的输出。电阻被确定为通过线圈的电流或从模拟转换为数字值的线圈的电压的函数。确定锤组中线圈温度的附带方法是通过将线圈的预先确定的温度与在锤击锤的操作期间通过线圈的电流进行比较而将预先建立的电流或电压值进行比较。在操作期间通过线圈的电流与预先建立的电流的比较被提供给控制器，用于响应于电流之间的电流差来控制打印机，电流又是工作温度的函数。

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