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    • 54. 发明授权
    • Circuits and methods for clock and data recovery
    • 时钟和数据恢复的电路和方法
    • US08090067B2
    • 2012-01-03
    • US12126655
    • 2008-05-23
    • Peter Ho
    • Peter Ho
    • H03D3/24
    • H04L7/0337H03L7/0814H03L7/113H04L7/0025H04L25/14
    • A clock-data recovery circuit includes a phase rotator, a phase detector and a charge pump. The phase rotator receives first and second reference clocks and differential control signals. The phase rotator generates a modified clock signal responsive to the first and second reference clocks and the control signals. The phase detector receives a data signal and the modified clock signal. The phase detector generates a modified data signal and a phase error signal responsive to the data signal and the modified clock signal. The charge pump receives the phase error signal and generates the differential control signals, which direct the phase rotator to interpolate between select clock phases.
    • 时钟数据恢复电路包括相位旋转器,相位检测器和电荷泵。 相位旋转器接收第一和第二参考时钟和差分控制信号。 相位旋转器响应于第一和第二参考时钟和控制信号产生修改的时钟信号。 相位检测器接收数据信号和修改的时钟信号。 相位检测器响应于数据信号和修改的时钟信号产生修改的数据信号和相位误差信号。 电荷泵接收相位误差信号并产生差分控制信号,其引导相位旋转器在选择时钟相位之间插值。
    • 57. 发明申请
    • Disk drive with adaptive actuator braking upon unexpected power loss
    • 带有自适应执行器的磁盘驱动器,在出现意外的电力损失时进
    • US20070188906A1
    • 2007-08-16
    • US11352501
    • 2006-02-10
    • Peter HoLee NguyentranBond-Yen TingPhong Vu
    • Peter HoLee NguyentranBond-Yen TingPhong Vu
    • G11B21/02G11B5/596
    • G11B21/12
    • A magnetic recording hard disk drive (HDD) uses adaptive braking of the voice coil motor (VCM) actuator upon unexpected loss of power during a track seek. An adaptive braking controller applies a preselected value of brake voltage to the VCM to reverse the motion of the freely-moving actuator. The value of the selected brake voltage is determined from the actuator velocity. A set. Of brake voltage values is stored in memory in the HDD, and each brake voltage value corresponds to a band of track seek lengths, with each band representing a range of actuator velocities. For each seek, the value of brake voltage corresponding to the band in which the seek length falls is stored in a register. If emergency power-off (EPO) occurs during the seek, the value of brake voltage is recalled from the register and applied to the VCM to brake the VCM. After the VCM has been adaptively braked in this manner, actuator retract occurs to unload the heads.
    • 磁记录硬盘驱动器(HDD)使用音圈电机(VCM)致动器的自适应制动器,在轨道寻找期间意外的功率损失。 自适应制动控制器向VCM施加制动电压的预选值以反转自由移动的致动器的运动。 所选制动电压的值由执行器速度确定。 一套。 制动电压值存储在HDD中的存储器中,并且每个制动电压值对应于磁道搜索长度的频带,每个频带表示致动器速度的范围。 对于每个寻道,对应于寻找长度下降的频带的制动电压的值被存储在寄存器中。 如果在寻道期间发生紧急断电(EPO),则从寄存器调用制动电压值,并将其施加到VCM以制动VCM。 在VCM已经以这种方式自适应地制动之后,执行器退回发生以卸载头部。
    • 59. 发明申请
    • Patient interface device with dampening cushion
    • 患者接口装置带有缓冲垫
    • US20070163594A1
    • 2007-07-19
    • US11642024
    • 2006-12-19
    • Peter HoLance Busch
    • Peter HoLance Busch
    • A62B18/02A62B18/08
    • A61M16/06A61M16/0605A61M16/0616A61M16/0633
    • A cushion for use with a patient interface device includes a first end portion, which typically contacts the patient's face when the patient interface device is worn, a second end and/or opposite the first end, which is typically coupled to a portion of the patient interface device, a chamber, which is typically disposed between the first and second end portions, and an orifice. The chamber is structured to receive and store a dampening medium therein; and the orifice, which is in operative communication with the chamber, controls the passage of the dampening medium into and/or out of the chamber. A patient interface device including a mask shell and the cushion is also described.
    • 用于患者接口装置的缓冲垫包括第一端部,当穿戴患者接口装置时,第一端部通常接触患者的面部,第二端部和/或与第一端部相对,该第二端部通常与患者的一部分相连 界面装置,通常设置在第一和第二端部之间的腔室以及孔口。 该室被构造成在其中接收和存储润湿介质; 并且与腔室操作连通的孔口控制阻尼介质通入和/或离开腔室。 还描述了包括面罩壳和衬垫的患者界面装置。