Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2007-02-27
2007-02-27
Lee, Seung Ho (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462080, C235S462200, C235S472010
Reexamination Certificate
active
10956693
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: 5504319 (1996-04-01), Li et al.
patent: 5510607 (1996-04-01), Ishikawa
patent: 5837987 (1998-11-01), Koenck et al.
patent: 5889269 (1999-03-01), Bridgelall et al.
patent: 7007848 (2006-03-01), Li
Barkan Edward
Dvorkis Paul
Li Yajun
Nambudri Narayan
Stern Miklos
Ho Lee Seung
Kirschstein et al.
Symbol Technologies Inc.
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