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    ANORDNUNG UND VERFAHREN ZUR MESSUNG AN EINEM RESONANTEN SCHWINGER UND SEINER STEUERUNG UND EINSTELLUNG EINER PIXELBREITE
    3.
    发明授权
    ANORDNUNG UND VERFAHREN ZUR MESSUNG AN EINEM RESONANTEN SCHWINGER UND SEINER STEUERUNG UND EINSTELLUNG EINER PIXELBREITE 有权
    系统和方法用于测量共振主席和其控制和调节的像素宽度的

    公开(公告)号：EP1472643B1

    公开(公告)日：2011-09-21

    申请号：EP03706457.3

    申请日：2003-02-07

    申请人： Jenoptik Ldt GmbH

    发明人： WENZEL, Mike

    IPC分类号： G06K7/10 ,  G02B7/182 ,  H04N9/31 ,  G02B26/10 ,  H04N1/053 ,  G01D5/30

    CPC分类号： H04N1/053 ,  G01D5/30 ,  G02B7/1821 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04794

    摘要： The invention relates to an arrangement and a method for measurement on a resonant oscillator with a mirror surface (8), which is displaced about an oscillation axis (2) with a period of duration (T), a laser diode (4) which emits a measuring beam (3) onto the first mirror surface (8), whereby a beam axis (21) of the measuring beam (3) intersects the oscillation axis (2). A photo receiver (6) is arranged opposing the first mirror surface (8) at a separation (a) from the beam axis (21) and a separation (b) from the mirror surface (8). The deflected measuring beam (5) moves within a quarter of a period (0 .... T/4) of an oscillation and over the photo-receiver (6) within a following quarter (T/4 .... T/2) of the period. The photo-receiver (6) is connected to an analytical circuit (11) which calculates the timepoints (t1, t2) from the impulses from the photo-receiver (6) and calculates a time period within the one half-wave (Δt = t2 - t1) from the above. The analytical circuit (11) calculates an actual value of the maximum amplitude with the equation:(I). The time duration Δt corresponds to a line dead time on writing sequential lines of a video image.

    Electronic control arrangement for a laser printer
    4.
    发明公开
    Electronic control arrangement for a laser printer 审中-公开
    用于激光打印机的电子控制装置

    公开(公告)号：EP1061729A3

    公开(公告)日：2002-10-16

    申请号：EP00305075.4

    申请日：2000-06-15

    申请人： Lexmark International, Inc.

    发明人： Pawley, Daniel Eugene ,  Wade, Thomas Campbell ,  Schneider, David Antony ,  Ward, Earl Dawson, II

    IPC分类号： H04N1/053

    CPC分类号： H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04748 ,  H04N2201/04768

    摘要： The write lines of a color laser printer are maintained substantially equal throughout the printer's operation by an electronic control arrangement. At the factory, the write lines on all photoconductors of the color laser printer are calibrated to be substantially equal, and the ratio of each write line to a measuring line for each photoconductor is ascertained. During operation of the printer, the length of each of the measuring lines is periodically determined through counting the number of PELslice clock timing pulses produced from a PELslice clock operating at a fixed frequency determined during factory calibration. The length of the write line is determined by the product of the length of the measuring line and the factory calibrated ratio of the length of the write line to the length of the measuring line. After each periodic determination, PELslice clock timing pulses are selectively inserted into or removed from the PELslice clock timing pulses for all of the write lines but the write line, which is closest to the desired length, to increase or decrease their lengths to be substantially equal to the write line, which is closest to the desired length. The time for insertion or removal of each of the PEL slices into the train of PELslice clock timing pulses produced by the PELslice clock is determined with each preferably inserted at a non-active portion of a PEL. Each insertion or removal of a PEL slice also may be offset from its determined position.