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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Patent Owner(s)

Patent OwnerAddressTotal Patents
METROLOGIC INSTRUMENTS, INC.BLACKWOOD, NJ596

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amundsen, Thomas Turnersville, NJ 234 1469
Au, Ka Man Philadelphia, PA 266 1281
Bonanno, John Woodbury, NJ 89 444
Byun, Sung Cherry Hill, NJ 92 476
Ghosh, Sankar Boothwyn, PA 148 831
Hou, Rui Suzhou, CN 109 450
Knowles, C Harry Moorestown, NJ 435 3170
Kotlarsky, Anatoly Holland, PA 251 982
Liu, Liang Ningbo, CN 890 2985
Liu, Yong Shenzhen, CN 579 1572
Russell, Garrett Wilmington, DE 140 1462
Schmidt, Mark Williamstown, NJ 247 1167
Schnee, Michael Aston, PA 86 515
Spatafore, Pasqual Marlton, NJ 64 378
Tao, Xi Suzhou, CN 130 620
Yu, Hongpeng Tianjin, CN 80 434
Zhang, Wenhua Suzhou, CN 92 440
Zhu, Xiaoxun Marlton, NJ 506 2343

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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5,294,783 Analog reconstruction circuit and bar code reading apparatus employing same 207 1992
5,319,182 Integrated solid state light emitting and detecting array and apparatus employing said array 182 1992
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5,430,285 Illumination system for optical reader 130 1993
5,420,409 Bar code scanner providing aural feedback 207 1993
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5,914,476 Optical reader configured to accurately and rapidly read multiple symbols 231 1997
6,254,003 Optical reader exposure control apparatus comprising illumination level detection circuitry 190 1998
6,045,047 Two-dimensional part reader having a focussing guide 192 1998
6,164,544 Adjustable illumination system for a barcode scanner 187 1998
6,275,388 Image sensor mounting system 159 1998
6,149,063 Method and apparatus for bar code association for wireless network 189 1998
6,161,760 Multiple application multiterminal data collection network 203 1998
6,585,159 Indicia sensor system for optical reader 193 1999
6,370,003 Electrostatic charge resistant instrument system 72 1999
6,547,139 Method and apparatus for extending operating range of bar code scanner 208 2000
6,575,367 Image data binarization methods enabling optical reader to read fine print indicia 175 2000
6,607,128 Optical assembly for barcode scanner 171 2000
6,371,374 Adjustable illumination system for a barcode scanner 192 2000
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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
COGNEX TECHNOLOGY AND INVESTMENT CORPORATION (10)
7,823,783 Light pipe illumination system and method 11 2003
7,823,789 Low profile illumination for direct part mark readers 9 2004
8,061,613 Method and apparatus for providing omnidirectional lighting in a scanning device 4 2009
8,286,878 Hand held symbology reader illumination diffuser 3 2009
8,672,227 Low profile illumination for direct part mark readers 0 2010
8,061,614 Light pipe illumination system and method 4 2010
8,342,405 Light pipe illumination system and method 0 2011
8,282,000 Method and apparatus for providing omnidirectional lighting in a scanning device 0 2011
8,770,483 Light pipe illumination system and method 0 2012
8,740,078 Method and apparatus for providing omnidirectional lighting in a scanning device 0 2012
 
COGNEX CORPORATION (1)
8,434,686 Swipe scanner employing a vision system 0 2011
 
COGNEX TECHNOLOGY AND INVESTMENT LLC (1)
7,874,487 Integrated illumination assembly for symbology reader 5 2005
 
HONEYWELL SCANNING AND MOBILITY (1)
8,678,286 Method and apparatus for reading optical indicia using a plurality of data sources 0 2012
 
MEDIATEK INC. (1)
8,033,469 Apparatus for performing multimedia-based data transmission and associated method 0 2009

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