Technique for eliminating fraudulent use of printed coupons
First Claim
Patent Images
1. A method for redeeming coupons, comprising the steps of:
- storing on an electronic device an electronic coupon having encrypted data and unencrypted data, wherein the encrypted data is required for printing the coupon;
reading data stored on the electronic device at a purchase location, comparing the unencrypted data with product data obtained at the purchase location and, if a match is detected, decrypting the encrypted data; and
printing the coupon at the purchase location with the decrypted data.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for redeeming coupons, comprising the steps of storing on an electronic device an electronic coupon having encrypted data and unencrypted data, wherein the encrypted data is required for printing the coupon; reading data stored on the portable electronic device at purchase location, and comparing the unencrypted data with product data obtained at the purchase location, and if a match is detected, decrypting the encrypted data; and printing the coupon at the purchase location with the decrypted data.
-
Citations
14 Claims
-
1. A method for redeeming coupons, comprising the steps of:
-
storing on an electronic device an electronic coupon having encrypted data and unencrypted data, wherein the encrypted data is required for printing the coupon; reading data stored on the electronic device at a purchase location, comparing the unencrypted data with product data obtained at the purchase location and, if a match is detected, decrypting the encrypted data; and printing the coupon at the purchase location with the decrypted data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for redeeming coupons at a purchase location, comprising the steps of:
-
reading an electronic coupon having encrypted data and unencrypted data, wherein the encrypted data is required for printing the coupon; comparing the unencrypted data with product data obtained at the purchase location, and if a match is detected, decrypting the encrypted data; and printing the coupon at the purchase location with the decrypted data for immediate redemption. - View Dependent Claims (11, 12, 13, 14)
-
Specification