Token having a predetermined optical characteristic, and a token

Details Token having a predetermined optical characteristic, and a token Token having a predetermined optical characteristic, and a token

1989-01-19

1991-09-10

Rosenberger, Richard A.

Optics: measuring and testing

Document pattern analysis or verification

G06K 974

Patent

active

050468413

ABSTRACT:
A token having predetermined optical characteristics can be tested by a token validation device that subjects the token to optical testing to determine the presence or absence of the predetermined optical characteristics. A single token can include a plurality of different predetermined optical characteristics to increase its coding content.

REFERENCES:
patent: 3324283 (1967-06-01), Chu
patent: 4011435 (1977-03-01), Phelps et al.
patent: 4034211 (1977-07-01), Horst et al.
patent: 4211918 (1980-07-01), Nyfeler et al.
patent: 4837425 (1989-06-01), Edwards

Affiliated with

Also associated with

Rating

Token having a predetermined optical characteristic, and a token does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Token having a predetermined optical characteristic, and a token, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Token having a predetermined optical characteristic, and a token will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-536115