Method of reading code symbols using a hand-supportable digital image capturing and processing device employing a micro-computing platform supporting an event-driven multi-tier modular software architecture
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United States of America Patent
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Feb 17, 2009
Grant Date -
Jun 21, 2007
app pub date -
Nov 30, 2006
filing date -
Nov 13, 2003
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Abstract
A portable digital image capturing and processing system comprising: an image formation and detection subsystem; a narrow-band illumination subsystem; a narrow-band transmission-type optical filter subsystem; an automatic light exposure measurement subsystem; and an automatic illumination control subsystem. The image formation and detection subsystem has an area-type image sensing array for detecting digital images of objects formed thereon by image formation optics providing a field of view (FOV) for the system. Within the FOV of the image formation and detection subsystem, the narrow-band illumination subsystem produces a field of narrow-band illumination consisting essentially of a narrow band of wavelengths of visible illumination. The narrow-band transmission-type optical filter subsystem transmits substantially only the narrow band of wavelengths of visible illumination produced from the narrow-band illumination subsystem, and rejects all other optical wavelengths outside the narrow band however generated by ambient illumination sources. The automatic light exposure measurement subsystem employs a photo-detector operated independently from the area-type image sensing array, for automatically measuring the light exposure incident upon a selected portion of the FOV, and producing an electrical signal representative of the light exposure measurement. Only when all sensor elements in the image-sensing sensing array are activated and in state of integration, then narrow-band illumination is produced for illuminating objects in FOV of the system and simultaneously detected by a photo-detector for measuring light exposure within the FOV, and also by an area-type image sensing array for detecting a digital image of said illuminated object.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- METROLOGIC INSTRUMENTS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Amundsen, Thomas | Turnersville , US | 148 | 9511 |
Au, Ka Man | Philadelphia , US | 167 | 9522 |
Bonanno, John | Woodbury , US | 46 | 2084 |
Byun, Sung | Cherry Hill , US | 50 | 2187 |
Ghosh, Sankar | Boothwyn , US | 90 | 3771 |
Hou, Rui | Suzhou , CN | 127 | 3003 |
Knowles, C Harry | Moorestown, US | 239 | 11305 |
Kotlarsky, Anatoly | Holland , US | 140 | 9223 |
Liu, Liang | Suzhou , CN | 749 | 9302 |
Liu, Yong | Suzhou , CN | 1107 | 23157 |
Russell, Garrett | Wilmington , US | 106 | 4052 |
Schmidt, Mark | Williamstown , US | 185 | 6893 |
Schnee, Michael | Aston , US | 50 | 6661 |
Spatafore, Pasqual | Marlton, US | 35 | 1915 |
Tao, Xi | Suzhou , CN | 79 | 5610 |
Yu, Hongpeng | Tianjin , CN | 50 | 2125 |
Zhang, Wenhua | Suzhou , CN | 75 | 2254 |
Zhu, Xiaoxun | Marlton , US | 300 | 26082 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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