Registers – Coded record sensors – Particular sensor structure
Patent
1995-12-19
1997-05-27
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235463, G06K 710
Patent
active
056334885
ABSTRACT:
A method and apparatus to enable the high speed evaluation of the quality of a bar code indicia by processing a scan reflectance profile signal generated by a scanner unit. The scan reflectance profile signal is sampled by an analog-to-digital converter, with the sample values from the converter processed as they are produced in real-time to determine a highest positive peak sample value and a lowest negative peak sample value for each element of the bar code indicia. The lowest negative and highest positive peak sample values for each element being accessible for post-processing to determine at least one figure of merit indicative of the quality of the bar code indicia being evaluated. The samples produced by the a/d converter are processed as they are generated to filter and reduce the total collection of sample values stored and/or considered, while still providing the critical highest and lowest peak sample values for the scanned elements to enable high speed verification.
REFERENCES:
patent: 4219152 (1980-08-01), Couch et al.
patent: 4251798 (1981-02-01), Swartz et al.
patent: 4360798 (1982-11-01), Swartz et al.
patent: 4517455 (1985-05-01), Benitez, III et al.
patent: 4705939 (1987-11-01), Ulinski, Sr.
patent: 4740675 (1988-04-01), Brosnan et al.
patent: 4980544 (1990-12-01), Winter
patent: 5103080 (1992-04-01), Barkan
patent: 5194720 (1993-03-01), Reinnagel et al.
patent: 5218190 (1993-06-01), Hardesty et al.
patent: 5231293 (1993-07-01), Longacre
patent: 5285056 (1994-02-01), Tedesco et al.
patent: 5294783 (1994-03-01), Hammond, Jr. et al.
patent: 5298728 (1994-03-01), Elliott et al.
patent: 5308962 (1994-05-01), Havens et al.
patent: 5326961 (1994-07-01), Sibata
patent: 5334825 (1994-08-01), Maddox
patent: 5444442 (1995-08-01), Sadakata et al.
patent: 5484994 (1996-01-01), Roustaei
Uniform Code Council, "Quality Specification for the UPC Printed Symbol" Sep. 1994.
American National Stndards Institute (ANSI), "Bar Code Print Quality Guideline", ANSI X3. 182 --1990 [Not Submitted --Multiplicity of Above Item AO]. Mar. 1990.
Hajec Donald T.
Lee Michael G.
Webscan, Inc.
LandOfFree
Method and apparatus to enable the high speed evaluation of bar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus to enable the high speed evaluation of bar , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to enable the high speed evaluation of bar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2330934