Information reproduction system for reproducing a two-dimensiona

Details Information reproduction system for reproducing a two-dimensiona Information reproduction system for reproducing a two-dimensiona

1998-03-02

1999-09-14

Fridie, Jr., Willmon

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

B42D 1500

Patent

active

059510560

ABSTRACT:
A marker detecting section detects markers formed at four corners of a block using binary image data of a two-dimensional code stored in a data memory. A marker's approximate center calculating section calculates the approximate centers of the detected markers. A pattern code detecting means detects a pattern code in accordance with format information of the two-dimensional code stored in a format memory. A marker's real center calculating section calculates the real centers of the markers from the detected pattern code and the format information using the error minimizing method. Based on the calculated real centers of the markers, a data code reading coordinate calculating section calculates reading coordinates for reading data dots of address code and data code areas from the data memory.

REFERENCES:
patent: 5241166 (1993-08-01), Chandler
patent: 5297815 (1994-03-01), Anderson et al.
patent: 5577774 (1996-11-01), Morikawa et al.
patent: 5623479 (1997-04-01), Takahashi
patent: 5735547 (1998-04-01), Morelle et al.
patent: 5860679 (1999-01-01), Fukuda et al.
patent: 5864742 (1999-01-01), Gasper et al.

Affiliated with

Also associated with

Rating

Information reproduction system for reproducing a two-dimensiona does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information reproduction system for reproducing a two-dimensiona, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information reproduction system for reproducing a two-dimensiona will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1501743