Registers – Coded record sensors – Particular sensor structure
Patent
1996-04-15
1997-12-16
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235470, 25022908, 382183, G06K 710
Patent
active
056988338
ABSTRACT:
An efficient method and apparatus for determining the location and approximate orientation of a barcode on a substrate. The inventive method is preferably implemented by an omnidirectional barcode locator including an application specific integrated circuit that includes one or more field programmable gate arrays (FPGAs). The digit image is a one-bit (i.e., black/white) representation of a standard eight-bit grey scale video image produced by the CCD camera. The use of a one-bit digital video signal reduces the amount of mass storage memory required to store images of barcodes and facilitates the manipulation of the video signal by the application specific integrated circuit. The omnidirectional barcode locator processes, in real-time, a digital video signal defining a pixelized image of a conveyor carrying parcels through the field of view of a CCD camera. The omnidirectional barcode locator divides the video image into a plurality of cells and produces two output signals, a cell barcode indication signal and a cell barcode orientation signal, for each cell. A host computer responds to a "true" cell barcode indication signal for a cell by storing the portion of the video image corresponding to the cell in a mass storage memory. The host computer also stores a representation of the cell barcode orientation signal for each cell in which the cell barcode indication signal is "true." The omnidirectional barcode locator thus allows the host computer to store only those cells of the video image that contain barcode data. The barcode data may then be provided to a barcode reader for further processing.
REFERENCES:
patent: 4403339 (1983-09-01), Wevelsiep et al.
patent: 4411016 (1983-10-01), Wakeland
patent: 4646353 (1987-02-01), Tenge et al.
patent: 5124537 (1992-06-01), Chandler et al.
patent: 5134272 (1992-07-01), Tsuchiya et al.
patent: 5155343 (1992-10-01), Chandler et al.
patent: 5296690 (1994-03-01), Chandler et al.
patent: 5304787 (1994-04-01), Wang
patent: 5319181 (1994-06-01), Shellhammer et al.
patent: 5367578 (1994-11-01), Golem et al.
patent: 5373147 (1994-12-01), Noda
patent: 5396054 (1995-03-01), Krichever et al.
patent: 5422470 (1995-06-01), Kubo
patent: 5428211 (1995-06-01), Zheng et al.
patent: 5438188 (1995-08-01), Surka
patent: 5446271 (1995-08-01), Cherry et al.
patent: 5468946 (1995-11-01), Oliver
patent: 5489769 (1996-02-01), Kubo
patent: 5510604 (1996-04-01), England
patent: 5512739 (1996-04-01), Chandler et al.
patent: 5563958 (1996-10-01), Higgins et al.
patent: 5591952 (1997-01-01), Krichever et al.
patent: 5635697 (1997-06-01), Shellhammer et al.
patent: 5635699 (1997-06-01), Cherry et al.
Hajec Donald T.
Lee Michael G.
United Parcel Service of America Inc.
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