US Patent No: 7,490,774

Number of patents in Portfolio can not be more than 2000

Hand-supportable imaging based bar code symbol reader employing automatic light exposure measurement and illumination control subsystem integrated therein

ALSO PUBLISHED AS: 20060219792
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Abstract

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
METROLOGIC INSTRUMENTS, INC.BLACKWOOD, NJ355

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amundsen, Thomas Turnersville , US 139 1706
Au, Ka Man Philadelphia , US 136 1604
Bonanno, John Woodbury , US 45 606
Byun, Sung Cherry Hill , US 47 634
Ghosh, Sankar Boothwyn , US 77 997
Hou, Rui Suzhou , CN 60 605
Knowles, C Harry Moorestown, US 231 3372
Kotlarsky, Anatoly Holland , US 122 1223
Liu, Liang Suzhou , CN 527 1856
Liu, Yong Suzhou , CN 440 1675
Russell, Garrett Wilmington , US 87 1660
Schmidt, Mark Williamstown , US 136 1336
Schnee, Michael Aston , US 47 753
Spatafore, Pasqual Marlton, US 32 526
Tao, Xi Suzhou , CN 70 777
Yu, Hongpeng Tianjin , CN 40 576
Zhang, Wenhua Suzhou , CN 52 580
Zhu, Xiaoxun Marlton , US 277 2806

Cited Art Landscape

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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
COGNEX TECHNOLOGY AND INVESTMENT LLC (12)
7,823,783 Light pipe illumination system and method 12 2003
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MEDIATEK INC. (1)
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METROLOGIC INSTRUMENTS, INC. (3)
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* Cited By Examiner

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