The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2009
Filed:
Nov. 15, 2004
Xiaoxun Zhu, Marlton, NJ (US);
Yong Liu, Suzhou, CN;
Ka Man AU, Philadelphia, PA (US);
Rui Hou, Suzhou, CN;
Hongpeng Yu, Tianjin, CN;
Xi Tao, Suzhou, CN;
Liang Liu, Suzhou, CN;
Wenhua Zhang, Suzhou, CN;
Anatoly Kotlarsky, Holland, PA (US);
Sankar Ghosh, Boothwyn, PA (US);
Michael Schnee, Aston, PA (US);
Pasqual Spatafore, Marlton, NJ (US);
Thomas Amundsen, Turnersville, NJ (US);
Sung Byun, Cherry Hill, NJ (US);
Mark Schmidt, Williamstown, NJ (US);
Garrett Russell, Wilmington, DE (US);
John Bonanno, Woodbury, NJ (US);
C. Harry Knowles, Moorestown, NJ (US);
Xiaoxun Zhu, Marlton, NJ (US);
Yong Liu, Suzhou, CN;
Ka Man Au, Philadelphia, PA (US);
Rui Hou, Suzhou, CN;
Hongpeng Yu, Tianjin, CN;
Xi Tao, Suzhou, CN;
Liang Liu, Suzhou, CN;
Wenhua Zhang, Suzhou, CN;
Anatoly Kotlarsky, Holland, PA (US);
Sankar Ghosh, Boothwyn, PA (US);
Michael Schnee, Aston, PA (US);
Pasqual Spatafore, Marlton, NJ (US);
Thomas Amundsen, Turnersville, NJ (US);
Sung Byun, Cherry Hill, NJ (US);
Mark Schmidt, Williamstown, NJ (US);
Garrett Russell, Wilmington, DE (US);
John Bonanno, Woodbury, NJ (US);
C. Harry Knowles, Moorestown, NJ (US);
Metrologic Instruments, Inc., Blackwood, NJ (US);
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.