Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2004-11-15
2009-02-17
Kim, Ahshik (Department: 2876)
Registers
Coded record sensors
Particular sensor structure
C235S462370, C235S462410, C235S462420
Reexamination Certificate
active
07490774
ABSTRACT:
A hand-supportable digital imaging-based bar code symbol reading device comprises: an IR-based object presence and range detection subsystem; a area-type image formation and detection subsystem having an image capture modes of operation; a multi-mode led-based illumination subsystem for providing a narrow-band field of illumination; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem integrated with each of the above-described subsystems. The automatic light exposure measurement and illumination control subsystem has a light collecting element and a photodiode arranged within the hand-supportable housing, wherein incident illumination is collected from the predetermined portion of the FOV using the light collecting element, and then focused upon the photodiode for detection of the intensity of incident illumination and subsequent processing by the automatic light exposure measurement and illumination control subsystem.
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patent:
Amundsen Thomas
Au Ka Man
Bonanno John
Byun Sung
Ghosh Sankar
Kim Ahshik
Metrologic Instruments Inc.
Thomas J. Perkowski Esq., P.C.
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