Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2007-07-10
2007-07-10
Kim, Ahshik (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462010, C235S462090, C235S462220, C235S462240, C235S462420
Reexamination Certificate
active
10901445
ABSTRACT:
A hand-supportable digital imaging-based bar code symbol reading system comprises: an automatic object presence detection subsystem; an image formation and detection subsystem employing a CMOS area-type image detection array; an LED-based illumination subsystem employing a LED illumination array for generating a field of narrow-band LED illumination; an automatic light exposure measurement and illumination control subsystem employing LED illumination driver circuitry; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; a narrow-band transmission-type optical filter subsystem; and a system control subsystem for controlling the subsystems. The time duration that the CMOS area-type image sensing array is exposed to narrow-band illumination, from the LED-based illumination array, is managed by controlling the time that the LED-based illumination array generates narrow-band illumination in response to first and second control activation signals generated by the CMOS image sensing array and the automatic object presence detection subsystem, respectively, aboard the system.
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Amundsen Thomas
Au Ka Man
Bonanno John
Byun Sung
Ghosh Sankar
Kim Ahshik
Metrologic Instruments Inc.
Perkowski Esq. P.C. Thomas J.
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