Recognition method for letter patterns
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United States of America Patent
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Jan 22, 1991
Grant Date -
N/A
app pub date -
Sep 22, 1988
filing date -
Sep 22, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A letter pattern recognition method preprocesses each character pattern to effect characteristic extraction based on elements such as a loop, a straight line and an arc and is adapted to compare the character pattern with a preregistered classification code after the normalization thereof, the character pattern being subjected to balance and stroke checks if necessary as a result of the comparison. Notwithstanding this, if the character is not defined, the character pattern is identified by means of detail classifications such as those of a divergent mode of the arc, and a length ratio of the elements and the like.
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