Photoelectric reader for computer compatible characters

Details Photoelectric reader for computer compatible characters Photoelectric reader for computer compatible characters

1983-12-15

1993-03-16

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

235472, G06K 900

Patent

active

051951460

ABSTRACT:
Recently proposed computer compatible numerals are used in this invention. Their use permits a photoreader for reading the code column of coding sheets to be built for $25.00. The particular numerals used are composed of line elements drawn from a master numeral comprising the three sides of an isosceles triangle plus the altitude dropped to the base. The four elements form a hexadecimal numeral. These numerals appear in pairs in the code column. A pair of indicia appear next each pair of numerals. A scanner having seven photoelectric sensors scans the column from top to bottom, sensing (1) which elements are present and (2) which indicium is present. A processor uses this information to develop a respective 8-bit computer word for each pair of numerals scanned. The system is adaptable for reading other types of input. An equivalent system may be used to read rows of computer compatible characters consisting of eight or ten elements each.

REFERENCES:
patent: 3603930 (1971-09-01), Britt
patent: 3738487 (1973-06-01), Way et al.
patent: 3800282 (1974-03-01), Acker
patent: 4159471 (1979-06-01), Whitaker

Affiliated with

Also associated with

Rating

Photoelectric reader for computer compatible characters does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-356752