Photocopying – Projection printing and copying cameras – Step and repeat
Reexamination Certificate
2006-02-14
2006-02-14
Nguyen, Judy (Department: 2851)
Photocopying
Projection printing and copying cameras
Step and repeat
C355S067000, C347S225000, C347S249000
Reexamination Certificate
active
06999158
ABSTRACT:
An apparatus for forming a pattern has a light source, a scanning unit, a memory, a pulse data selector, a control pulse signal generator, a control pulse signal generator, a writing pulse signal generator, and an optical modulator. The time-interval detector detects successively a time-interval that is a pass-time of the beam in each of a series of fine sections. The pulse data selector selects a set of pulse data, corresponding to the detected time-interval, from a series of sets of pulse data. The control pulse signal generator successively generates a sequence of control pulse signals in accordance with the selected set of pulse data.
REFERENCES:
patent: 5241330 (1993-08-01), Kawabata et al.
patent: 5247373 (1993-09-01), Iwama et al.
patent: 5436728 (1995-07-01), Watanabe
patent: 2549011 (1996-08-01), None
Greenblum & Bernstein P.L.C.
Nguyen Judy
PENTAX Corporation
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