Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2006-11-06
2008-05-06
Lee, Seung Ho (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462320, C235S472010, C353S046000, C359S202100
Reexamination Certificate
active
07367510
ABSTRACT:
An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
REFERENCES:
patent: 6050690 (2000-04-01), Shaffer et al.
patent: 6575581 (2003-06-01), Tsurushima
patent: 2005/0224582 (2005-10-01), Aiki et al.
Barkan Edward
Dvorkis Paul
Li Yajun
Nambudri Narayan
Stern Miklos
Kirschstein et al.
Symbol Technologies Inc.
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