Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing electromagnetic radiation
Patent
1994-02-10
1996-11-26
Fridie, Jr., Willmon
Printed matter
Having revealable concealed information, fraud preventer or...
Utilizing electromagnetic radiation
283 72, B42D 1500
Patent
active
055777740
ABSTRACT:
A data reading apparatus reads data of dots from a recording sheet on which data is recorded in the form of a mesh pattern, and decodes the read data into binary data. The data reading apparatus has an image sensor to read black/white levels of dots of the mesh pattern using the image sensor and to binarize the read levels by a hardware component or CPU processing according to software. An image can have a high recording density by minimizing a dot size.
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Chikakiyo Hiroshi
Matsuoka Takeshi
Morikawa Shigenori
Casio Computer Co. Ltd.
Fridie Jr. Willmon
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