Disk drive to characterize misaligned servo wedges
    51.
    发明授权
    Disk drive to characterize misaligned servo wedges 失效
    磁盘驱动器来表征不对准的伺服楔

    公开(公告)号:US07551390B1

    公开(公告)日:2009-06-23

    申请号:US11842315

    申请日:2007-08-21

    IPC分类号: G11B5/596 G11B5/09

    摘要: Disclosed is a disk drive and method to characterize misaligned servo wedges. The disk drive includes an actuator arm, a head, a disk, and a servo controller. The head is connected to a distal end of the actuator arm in which the actuator arm is rotatable about a pivot to move the head radially over the disk. The servo controller is used to characterize misaligned servo wedges by implementing operations including: commanding the head to track follow on a track; measuring wedge-to-wedge time (WTWT) values corresponding to time intervals between identified servo wedges; calculating wedge-to-wedge time (WTWT) variations for the measured WTWT values; and characterizing the calculated WTWT variations, wherein, characterizing the calculated WTWT variations for the track includes utilizing a WTWT variation modeling function to model the WTWT variations.

    摘要翻译: 公开了一种用于表征不对准伺服楔的磁盘驱动器和方法。 磁盘驱动器包括致动器臂,磁头,磁盘和伺服控制器。 头部连接到致动器臂的远端,致动器臂可绕枢轴旋转,以使头部径向移动到盘上。 伺服控制器用于通过执行操作来表征不对准的伺服楔块,包括:命令头跟踪轨道跟踪; 测量对应于所识别的伺服楔之间的时间间隔的楔到楔时间(WTWT)值; 计算测量WTWT值的楔形到楔形时间(WTWT)变化; 并且表征所计算的WTWT变化,其中,表征所述轨道的所计算的WTWT变化包括利用WTWT变化建模函数来模拟所述WTWT变化。

    Disk drive idle mode responsive to flex circuit cable bias changes
    52.
    发明授权
    Disk drive idle mode responsive to flex circuit cable bias changes 失效
    磁盘驱动器空闲模式响应于柔性电路电缆偏置变化

    公开(公告)号:US07542225B1

    公开(公告)日:2009-06-02

    申请号:US11601268

    申请日:2006-11-17

    IPC分类号: G11B21/02 G11B15/18

    CPC分类号: G11B5/5534 G11B5/5552

    摘要: Disclosed is disk drive comprising an actuator including a head, a disk having a plurality of tracks, and a processor to control the movement of the actuator and the head relative to the disk. The processor is coupled to the actuator by a flex circuit cable. The processor commands the application of a pre-calibrated bias signal to the actuator during an idle mode to compensate for a bias force imparted by the flex circuit cable upon the actuator such that the head is maintained proximate a pre-determined track of the disk within a pre-determined idle zone of tracks and further determines if a back electromagnetic force (BEMF) reading associated with the actuator is greater than the threshold value, and if so, commands an exit out of the idle mode.

    摘要翻译: 公开了包括具有头部,具有多个轨道的盘的致动器的磁盘驱动器以及用于控制致动器和磁头相对于磁盘的运动的处理器。 处理器通过柔性电路电缆耦合到致动器。 处理器命令在空转模式期间向致动器施加预校准的偏置信号,以补偿由柔性电路电缆施加在致动器上的偏压力,使得头部保持在靠近盘的预定轨迹处 预先确定的轨道空闲区域,并进一步确定与致动器相关联的反电磁力(BEMF)读数是否大于阈值,如果是,则命令退出空闲模式。

    Magnetic disk drive and method for efficiently determining and storing RRO compensation values using a secondary micro-actuator
    53.
    发明授权
    Magnetic disk drive and method for efficiently determining and storing RRO compensation values using a secondary micro-actuator 失效
    磁盘驱动器和用于使用次级微致动器有效地确定和存储RRO补偿值的方法

    公开(公告)号:US07502192B1

    公开(公告)日:2009-03-10

    申请号:US11484492

    申请日:2006-07-11

    IPC分类号: G11B21/02 G11B5/596

    CPC分类号: G11B5/59627

    摘要: A method is disclosed for efficiently determining and writing repeatable runout (RRO) compensation value sets for data tracks on a magnetic disk in a disk drive. The disk drive has a magnetoresistive (MR) head having a read element and a separate write element, and a secondary actuator coupled to the end of a primary actuator for adjusting a head skew angle. In the method, the head skew angle is set such that the read and write elements are substantially aligned along the first track. A position error signal for each servo sector is determined over a predetermined number of disk revolutions during track following along a first data track. An RRO compensation value set is calculated for the first data track based on the position error signals. The RRO compensation value set is written for the first data track. A seek operation is then performed to a second data track.

    摘要翻译: 公开了一种用于有效地确定和写入磁盘驱动器中的磁盘上的数据轨迹的可重复跳动(RRO)补偿值集合的方法。 磁盘驱动器具有磁阻(MR)磁头,其具有读取元件和单独的写入元件,以及耦合到主致动器的端部用于调整磁头倾斜角度的次级致动器。 在该方法中,头部偏斜角被设置为使得读取和写入元件沿着第一轨道基本对齐。 在沿着第一数据轨道的跟踪期间,在预定数量的盘转周期上确定每个伺服扇区的位置误差信号。 基于位置误差信号计算第一数据磁道的RRO补偿值集。 为第一个数据轨道写入RRO补偿值集。 然后对第二数据轨道执行寻道操作。

    Disk drive employing pivot friction compensation
    54.
    发明授权
    Disk drive employing pivot friction compensation 失效
    磁盘驱动器采用枢轴摩擦补偿

    公开(公告)号:US07440225B1

    公开(公告)日:2008-10-21

    申请号:US11507234

    申请日:2006-08-21

    申请人: Min Chen Zhi Wang

    发明人: Min Chen Zhi Wang

    IPC分类号: G11B5/596

    CPC分类号: G11B5/59627

    摘要: A disk drive is disclosed including a disk having a plurality of servo tracks, wherein each servo track comprises a plurality of servo sectors forming N servo wedges, and a wedge time period (WTP) occurs between each servo wedge. A VCM control signal is generated by generating an estimated WTP by detecting the servo sectors, estimating a pivot velocity in response to the estimated WTP, the pivot velocity representing a velocity of an actuator arm about a pivot, generating a pivot friction compensation in response to the estimated pivot velocity, and generating the VCM control signal in response to the pivot friction compensation.

    摘要翻译: 公开了一种磁盘驱动器,包括具有多个伺服磁道的磁盘,其中每个伺服磁道包括形成N个伺服楔形的多个伺服扇区,并且在每个伺服楔之间发生楔形时间段(WTP)。 通过产生估计的WTP来产生VCM控制信号,通过检测伺服扇区,响应于所估计的WTP估计枢转速度,枢转速度表示致动器臂围绕枢轴的速度,产生响应于 估计枢转速度,并响应于枢轴摩擦补偿产生VCM控制信号。

    Disk drive employing wedge spindle speed control with eccentricity compensation
    56.
    发明授权
    Disk drive employing wedge spindle speed control with eccentricity compensation 失效
    磁盘驱动器采用楔形主轴速度控制与偏心补偿

    公开(公告)号:US06972540B1

    公开(公告)日:2005-12-06

    申请号:US10993077

    申请日:2004-11-19

    摘要: A disk drive is disclosed wherein a BEMF speed error is measured during a BEMF spindle speed control mode, and a spindle control current is updated in response to the BEMF speed error to drive the disk at an operating speed. A reference time period (RTP) is calibrated, and a sinusoidal error in a wedge time period (WTP) due to eccentricity in the disk rotating is estimated to generate an eccentricity compensation value. After switching to a wedge spindle speed control mode, an actual WTP is detected and a wedge speed error is generated in response to the RTP, the detected actual WTP, and the eccentricity compensation value. The disk is then maintained at the operating speed by updating the spindle control current in response to the wedge speed error.

    摘要翻译: 公开了一种磁盘驱动器,其中在BEMF主轴速度控制模式期间测量BEMF速度误差,并且响应于BEMF速度误差来更新主轴控制电流以以操作速度驱动盘。 校准参考时间段(RTP),并且估计由于盘旋转中的偏心引起的楔形时间段(WTP)中的正弦误差产生偏心补偿值。 切换到楔形主轴速度控制模式后,检测到实际的WTP,并响应于RTP,检测到的实际WTP和偏心补偿值产生楔速度误差。 然后通过根据楔形速度误差更新主轴控制电流来将盘维持在运行速度。

    Lamp
    58.
    外观设计
    Lamp 有权

    公开(公告)号:USD899659S1

    公开(公告)日:2020-10-20

    申请号:US29736135

    申请日:2020-05-28

    申请人: Zhi Wang

    设计人: Zhi Wang

    METHOD, DEVICE AND SYSTEM FOR DEVICE TRIGGER IN IOT
    59.
    发明申请
    METHOD, DEVICE AND SYSTEM FOR DEVICE TRIGGER IN IOT 审中-公开
    方法,用于设备触发器的设备和系统

    公开(公告)号:US20150312351A1

    公开(公告)日:2015-10-29

    申请号:US14692914

    申请日:2015-04-22

    申请人: Zhi Wang Yigang Cai

    发明人: Zhi Wang Yigang Cai

    IPC分类号: H04L29/08

    摘要: An object of the invention is providing a method, device and system for Device Trigger in IoT. The network device obtains device trigger request(s) corresponding to one or more target devices, and determines, based on the device trigger request in conjunction with subscribed data corresponding to the target device, a device trigger response corresponding to the device trigger request. Compared with the prior art, the present invention provides a proxy mechanism used in IoT/MTC, i.e., with the network device as a proxy for the target device, a device trigger request corresponding to the target device is processed to reduce unnecessary trigger request to the target device, and reduce resource/energy (such as CPU, memory, network connection, etc. . . . ) consumption for the IoT/MTC devices and network; furthermore, the present invention would further reduce the response time of device trigger and improve the quality of services in IoT.

    摘要翻译: 本发明的一个目的是提供一种在物联网中的设备触发器的方法,装置和系统。 网络设备获得与一个或多个目标设备相对应的设备触发请求,并且基于与目标设备相对应的订阅数据的设备触发请求,确定与设备触发请求对应的设备触发响应。 与现有技术相比,本发明提供了一种在IoT / MTC中使用的代理机制,即,以网络设备为目标设备的代理,处理与目标设备相对应的设备触发请求,以减少不必要的触发请求 目标设备,并减少IoT / MTC设备和网络的资源/能源(如CPU,内存,网络连接等)的消耗; 此外,本发明将进一步减少设备触发的响应时间并提高物联网中的服务质量。

    Portable chargeable spray bottle
    60.
    发明授权
    Portable chargeable spray bottle 有权
    便携式充电喷雾瓶

    公开(公告)号:US08978938B2

    公开(公告)日:2015-03-17

    申请号:US13168693

    申请日:2011-06-24

    申请人: Yi Ming Hui Zhi Wang

    发明人: Yi Ming Hui Zhi Wang

    摘要: A portable chargeable spray bottle is disclosed comprising a body comprising an upper part and a lower part; a spray nozzle assembly equipped on the upper part, and a liquid charging structure placed at the bottom part. It is further comprises an exhaust structure comprising an exhaust hole penetrating the body, whereby exhaust air flow can escape via the exhaust hole to outside the bottle.

    摘要翻译: 公开了一种便携式带电喷雾瓶,其包括:主体,其包括上部和下部; 设置在上部的喷嘴组件,以及放置在底部的液体充填结构。 还包括排气结构,该排气结构包括穿过主体的排气孔,由此废气流可以经由排气孔逃逸到瓶外。