Key-in device

Details Key-in device Key-in device

1983-09-14

1986-03-25

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 13, 382 24, G06K 900

Patent

active

045788111

ABSTRACT:
A key-in device has a key-in section with a matrix array of keys. A key-actuated signal corresponding to a handwritten character input by the key-in section is input to an input pattern memory of a character recognition section, where an input pattern is formed and stored. The character recognition section has a standard pattern memory, having stored the standard pattern of a character to be recognized. A first feature detecting section extracts feature data from the input pattern in the input pattern memory. A first matching section detects a standard pattern coincident with the feature data extracted from the first standard pattern memory, and produces the character data input by the key-in section as a recognizable character.

REFERENCES:
patent: 4199751 (1980-04-01), Piguet
patent: 4232290 (1980-11-01), Yasuda et al.
patent: 4365235 (1982-12-01), Greanias et al.

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