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:
Nov. 28, 2006
Filed:
Jun. 27, 2002
Patrick Giordano, Blackwood, NJ (US);
Stephen Colavito, Brookhaven, PA (US);
Allan Wirth, Bedford, MA (US);
William Svedas, Deptford, NJ (US);
Timothy A. Good, Clementon, NJ (US);
Andrew Jankevics, Westford, MA (US);
C. Harry Knowles, Moorestown, NJ (US);
Constantine J. Tsikos, Voorhees, NJ (US);
Patrick Giordano, Blackwood, NJ (US);
Stephen Colavito, Brookhaven, PA (US);
Allan Wirth, Bedford, MA (US);
William Svedas, Deptford, NJ (US);
Timothy A. Good, Clementon, NJ (US);
Andrew Jankevics, Westford, MA (US);
C. Harry Knowles, Moorestown, NJ (US);
Constantine J. Tsikos, Voorhees, NJ (US);
Metrologic Instruments, Inc., Blackwood, NJ (US);
Abstract
A device including at least one image detection array and image formation optics that provide a field of view corresponding to the image detection array. At least one illumination module (which includes at least one source of coherent illumination) produces planar light illumination that substantially overlaps the field of view corresponding to the image detection array. Illumination control circuitry modulates the power level of illumination produced by the source of coherent illumination during each photo-integration time period of the image detection array to thereby reduce speckle noise in images captured by the image detection array. The illumination control circuitry preferably modulates the power level of illumination by controlling the number and/or duration of time periods corresponding to different power levels of illumination produced by the source of coherent illumination during each photo-integration time period of the image detection array.