Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2008-10-06
2011-10-11
Tran, Huan (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S250000
Reexamination Certificate
active
08035675
ABSTRACT:
First delay mechanisms to delay a beam-detect signal by different lengths of time in synchronization with a first clock signal. The beam-detect signal is generated responsive to one or more beams being output towards a rotating polygonal mirror having facets and directed towards a sensor. One or more second delay mechanisms each correspond to one of the beams to delay a second clock signal, resulting in a beam-clock signal to align the beam over successive reflections by the facets. A mechanism determines a delay by which each second delay mechanism is to delay the second clock signal, based on the beam-detect signal as differently delayed by the first delay mechanisms.
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patent: 2007/0286655 (2007-12-01), Wilson
Breen Craig
Pritsker Dan
Hewlett--Packard Development Company, L.P.
Tran Huan
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