Facilitating focusing of a multi-function digital media drive
    11.
    发明申请
    Facilitating focusing of a multi-function digital media drive 失效
    促进多功能数字媒体驱动器的集中

    公开(公告)号:US20070070841A1

    公开(公告)日:2007-03-29

    申请号:US11237979

    申请日:2005-09-29

    IPC分类号: G11B7/00

    摘要: A method of facilitating focusing of a multi-function digital media drive, is such as to generate two or more error signals each indicative of a focus of an energy beam by an optical arrangement onto first and second different recording layers of a digital medium in the drive, the first recording layers being covered with a protective, energy beam transparent substrate. A selected on of the error signal is used to determine a focus correction.

    摘要翻译: 促进多功能数字媒体驱动器的聚焦的方法是产生两个或更多个误差信号,每个误差信号通过光学装置将能量束的焦点指示在数字介质的第一和第二不同记录层上 第一记录层被保护性能量束透明基底覆盖。 使用误差信号的选择开来确定聚焦校正。

    Adaptive level shifter for print nozzle amplifier
    19.
    发明授权
    Adaptive level shifter for print nozzle amplifier 有权
    打印喷嘴放大器的自适应电平转换器

    公开(公告)号:US09221251B2

    公开(公告)日:2015-12-29

    申请号:US14374751

    申请日:2012-04-25

    摘要: An apparatus includes an amplifier to provide a waveform to drive a print nozzle. The amplifier also provides a current proportional to a slew rate of the waveform. A pass gate to applies the waveform to the print nozzle in response to a drive signal. A level shifter adjusts the drive signal based on the current.

    摘要翻译: 一种装置包括放大器以提供驱动打印喷嘴的波形。 放大器还提供与波形的转换速率成比例的电流。 传递门,用于响应于驱动信号将波形施加到打印喷嘴。 电平移位器根据电流调整驱动信号。

    Approximating topology of optically writable medium surface
    20.
    发明申请
    Approximating topology of optically writable medium surface 失效
    光学可写介质表面的近似拓扑

    公开(公告)号:US20070274184A1

    公开(公告)日:2007-11-29

    申请号:US11753507

    申请日:2007-05-24

    IPC分类号: G11B7/09

    摘要: A method controls an assembly using an oscillating wave, such that the assembly moves in an oscillated manner in relation to a surface of an optically writable medium in correspondence with oscillation of the oscillating wave. The assembly generates a beam towards the surface of the optically writable medium. A proximity signal is detected in response to the beam being generated towards the surface of the optical medium, and denotes closeness of the assembly to the surface. A number of peaks within the proximity signal are determined. The time at which each peak within the proximity signal occurs is correlated with a value of the oscillating wave at that time, yielding a number of time-value pairs. The topology of the surface of the optical medium is approximated from these time-value pairs.

    摘要翻译: 一种方法使用振荡波来控制组件,使得组件相对于振动波的振荡相对于光学可写介质的表面以振荡的方式移动。 组件向光学可写介质的表面产生光束。 响应于朝向光学介质的表面产生的光束来检测接近信号,并且表示组件与表面的接近度。 确定接近信号内的多个峰值。 发生接近信号内的每个峰值的时间与当时的振荡波的值相关,产生多个时间值对。 从这些时间值对近似光学介质的表面的拓扑。