×

Token having a predetermined optical characteristic, and a token validation device for use therewith

  • US 5,046,841 A
  • Filed: 01/19/1989
  • Issued: 09/10/1991
  • Est. Priority Date: 01/19/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A token validation device for use with a token operated device, wherein said token validation device includes:

  • optical sensing means for testing a token substantially independent of orientation of the token with respect to predetermined optical characteristics that are disposed in a substantially radially symmetrical manner with respect to the token; and

    validation means responsive to said optical sensing means for validating said token as a valid token when said token has said predetermined optical characteristics.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×