AUTOMATED HOLOGRAPHIC-BASED TUNNEL-TYPE LASER SCANNING SYSTEM FOR OMNI-DIRECTIONAL SCANNING OF BAR CODE SYMBOLS ON PACKAGE SURFACES FACING ANY DIRECTION OR ORIENTATION WITHIN A THREE-DIMENSIONAL SCANNING VOLUME DISPOSED ABOVE A CONVEYOR BELT - Patent US6360947(B1)

Filed: Mar 24, 1998

Published: Mar 26, 2002

Abstract

A fully automated package identification and measuring system, in which an omni-directional laser scanning system are used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.

Applicants

METROLOGIC INSTR INC

Inventors

NAYLOR CHARLES
DICKSON LEROY
CARULLO THOMAS
GOOD TIMOTHY A
WILZ SR DAVID
AMUNDSEN THOMAS C
KNOWLES C HARRY

Application Number

09047146

Priority Claims

US57394995

Family Members

US6360947(B1) - AUTOMATED HOLOGRAPHIC-BASED TUNNEL-TYPE LASER SCANNING SYSTEM FOR OMNI-DIRECTIONAL SCANNING OF BAR CODE SYMBOLS ON PACKAGE SURFACES FACING ANY DIRECTION OR ORIENTATION WITHIN A THREE-DIMENSIONAL SCANNING VOLUME DISPOSED ABOVE A CONVEYOR BELT

US2002047048(A1) - Omni-directional tunnel-type laser scanning system for scanning bar code symbols on object surfaces facing any direction within a three-dimensional scanning volume disposed above a conveyor belt

US6588665(B2) - Omni-directional tunnel-type laser scanning system for scanning bar code symbols on object surfaces facing any direction within a three-dimensional scanning volume disposed above a conveyor belt

Classification Codes

G06K7/14, G07G1/00, G02B26/10, G06K17/00, G06K7/10