Optical character reader

Details Optical character reader Optical character reader

1990-04-05

1991-10-01

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 34, 382 59, G06K 922

Patent

active

050541048

ABSTRACT:
A portable optical character reader which is designed to read optical characters, symbols and the like is provided with a unit for recognizing each character within the visual field, a recognition result storing unit for temporarily storing a recognition result, a recognition result comparing unit for comparing a recognition result newly obtained with the content of the recognition result storing unit, and a timer for measuring the time elapsed since a recognition result is obtained. In operation, when the same recognition result has been repeatedly obtained for a period of time which is longer than a predetermined time, this recognition result is output. Accordingly, no recognition result is output when the scanner is moved at excessively high speed, and therefore the operator can read characters by moving the scanner without any fear of erroneous recognition.

REFERENCES:
patent: 4136332 (1979-01-01), Kadota et al.
patent: 4355301 (1982-10-01), Isshiki et al.
patent: 4797940 (1989-01-01), Sato et al.

Affiliated with

Also associated with

Rating

Optical character reader does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical character reader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical character reader will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1761520