Technique for eliminating fraudulent use of printed coupons
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United States of America Patent
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Jun 5, 2012
Grant Date -
Aug 13, 2009
app pub date -
Nov 3, 2008
filing date -
Nov 1, 2007
priority date (Note) -
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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.
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