G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 7/10 (2006.01)
Patent
CA 2161357
A scanner determines whether a target is a bar code symbol and, if so, whether that symbol is one-dimensional or two-dimensional. For two-dimensional symbols, the scanner aligns a scanning pattern with the symbol and expands the scanning pattern to reach only to the top and bottom edges of the symbol, not beyond. The scanner also has a microprocessor-control scanning engine that uses a coil to drive a scanning element and pick up feed back signals from the scanning element. A pulse-width-modulated regulator also provides fast and efficient operation for driving the coil. The scanning engine can also be designed to generate a pattern that precesses across the target, and a powerful interface to the scanning engine allows decoding and control logic to work efficiently with and independently of the scan engine.
Barile John
Barkan Edward
Biuso Anthony D.
Charych Harold
Chew Steven M.
Kirby Eades Gale Baker
Symbol Technologies Inc.
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