Formation method of two-dimensional code
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 26, 2000
Grant Date -
N/A
app pub date -
Jun 10, 1999
filing date -
Feb 17, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A formation method of a two-dimensional code according to the present invention is characterized in that the method comprises the steps of: substituting a square unit cell, in which a plurality of dark round dots 6 are arranged in a matrix, for a dark unit cell from image data of a two-dimensional code 1 formed in a bright and dark pattern to transform the image data; burning these dark round dots 6 on a marking surface with a laser beam; and forming the two-dimensional code in a dark and bright pattern formed by combining dark unit cells 2A, formed with dark round dots 6, and bright unit cells 2b to which laser burning has not been performed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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