Sheet for data codes and method of recognizing these codes

Details Sheet for data codes and method of recognizing these codes Sheet for data codes and method of recognizing these codes

1994-01-10

1999-11-16

Pitts, Harold I.

Registers

Records

235488, G06K 1900

Patent

active

059841893

ABSTRACT:
A data code having at least one unit, each unit being divided into at least two regions having similar dimensions. Selected regions of each unit are shaded to represent a unique value. Each unit has a unique arrangement of shaded regions to represent a particular characteristic whereby the data code may represent a decimal, a hexidecimal or a binary notation. This code does not require accurate printing, thereby enabling a user to read the code directly. A code sensor is used for reading the code.

REFERENCES:
patent: 3718821 (1973-02-01), Vischulis
patent: 3776454 (1973-12-01), Jones
patent: 3938088 (1976-02-01), Clark
patent: 4172554 (1979-10-01), Clarinval
patent: 4283622 (1981-08-01), Passer
patent: 4286146 (1981-08-01), Uno
patent: 4439672 (1984-03-01), Salaman
patent: 4488679 (1984-12-01), Bockholt et al.
patent: 4521772 (1985-06-01), Lyon
patent: 4544836 (1985-10-01), Galvin et al.
patent: 4614366 (1986-09-01), North
patent: 4707612 (1987-11-01), Martin
Int Search Report PCT/JP88/00895 for PCT/ISA/210 (second sheet).

Affiliated with

Also associated with

Rating

Sheet for data codes and method of recognizing these codes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sheet for data codes and method of recognizing these codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet for data codes and method of recognizing these codes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1313036