Registers – Coded record sensors – Particular sensor structure
Patent
1994-10-31
1996-10-01
Shepperd, John
Registers
Coded record sensors
Particular sensor structure
235470, G06K 716
Patent
active
055612830
ABSTRACT:
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.
REFERENCES:
patent: 4251798 (1981-02-01), Swartz et al.
patent: 4360798 (1982-11-01), Swartz et al.
patent: 4369361 (1983-01-01), Swartz et al.
patent: 4387297 (1983-06-01), Swartz et al.
patent: 4387298 (1983-06-01), Petersen et al.
patent: 4409470 (1983-10-01), Shepard et al.
patent: 4460120 (1984-07-01), Shepard et al.
patent: 4760248 (1988-07-01), Swartz et al.
patent: 4794239 (1988-12-01), Allais
patent: 4896026 (1990-01-01), Krichever et al.
patent: 4933538 (1990-06-01), Heiman et al.
patent: 5115121 (1992-05-01), Bianco et al.
patent: 5117098 (1992-05-01), Swartz
patent: 5168149 (1992-12-01), Dvorkis et al.
patent: 5229591 (1993-07-01), Heiman et al.
patent: 5235167 (1993-08-01), Dvorkis et al.
patent: 5280165 (1994-01-01), Dvorkis et al.
Barile John
Barkan Edward
Biuso Anthony D.
Charych Harold
Chew Steven M.
Shepperd John
Symbol Technologies Inc.
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