Method of reading a barcode representing encoded data and disposed on an article and an apparatus therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 1996
Grant Date -
N/A
app pub date -
Sep 23, 1994
filing date -
Dec 13, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a method of, and apparatus for, reading a barcode, a barcode symbol is optically scanned into a memory (13), and a plurality of scans across the stored image are made and processed to determine the barcode. The scans are made at interleaved positions across the barcode, and are stored in a storage device (87) and tested in a testing unit (88) for a consensus of at least 2 scans, further scans being made if necessary. Preferably, more than half the scans should be in matching agreement to determine that a consensus has been reached. Each scan may be averaged from several sub-scans. The scans may be decoded into symbols. Various validity tests may be made on the scans. The scans are analysed by measuring the positions of the black-to-white and white-to-black transitions in them; the positions of the transitions may be interpolated between pixel positions.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully