Electronic stamp
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 3, 2004
Grant Date -
Jun 12, 2003
app pub date -
Jan 3, 2003
filing date -
Jul 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic stamp or method for performing stamps where one or several sets of phototransistors (8), with associated light emitting diodes (9), are mounted on a print head (3) that is hand-operated along beams (5) with the aid of a lever (4) coupled to an upper stamp housing (1). The phototransistors (8) generate signals used by a micro controller circuit (12) in order to in real time calculate positioning parameters about the print head (3), and thus be able to steer and control a stream of ink drops intended to form a predetermined printout pattern.
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Cited Art Landscape
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