Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2005-07-19
2005-07-19
Le, Thien M. (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462250, C235S472010
Reexamination Certificate
active
06918540
ABSTRACT:
A bioptical laser scanning system employing a plurality of laser scanning stations about a two independently controlled rotating polygonal mirrors. The system has an ultra-compact construction, ideally suited for space-constrained retail scanning environments, and generates a 3-D omnidirectional laser scanning pattern between the bottom and side-scanning windows during system operation. The laser scanning pattern of the present invention comprises a complex of quasi-orthogonal laser scanning planes, including a plurality of substantially-vertical laser scanning planes for reading bar code symbols having bar code elements (i.e. ladder type bar code symbols) that are oriented substantially horizontal with respect to the bottom-scanning window, and a plurality of substantially-horizontal laser scanning planes for reading bar code symbols having bar code elements (i.e. picket-fence type bar code symbols) that are oriented substantially vertical with respect to the bottom-scanning window.
REFERENCES:
patent: 2003/0042304 (2003-03-01), Knowles et al.
patent: 2003/0052173 (2003-03-01), Good
patent: 2003/0052175 (2003-03-01), Tsikos et al.
patent: 2003/0062415 (2003-04-01), Tsikos et al.
patent: 2003/0102377 (2003-06-01), Good
Le Thien M.
Metrologic Instruments Inc.
Perkowski Esq. P.C. Thomas J.
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