05128752 is referenced by 677 patents and cites 4 patents.

Tokens and coupons are generated in a television viewer's home by the viewer entering selected product information and authentication data transmitted to and displayed on the television into a home generating unit. The tokens and coupons can be presented to stores or redemption facilities for prizes and discounts on selected products. The matrix used to record the product information and verification data may also be provided with a code for use in giving additional prizes to purchasers whose code matches a predetermined code. The generating unit may also comprise a memory for storing information regarding the coupons generated by the unit for later review by marketing and manufacturing companies.

Title
System and method for generating and redeeming tokens
Application Number
837827
Publication Number
5128752
Application Date
October 25, 1990
Publication Date
July 7, 1992
Inventor
Henry Von Kohorn
945 Treasure La., Vero Beach, 32963
FL, US
Agent
Perman & Green
IPC
H04N 7/00
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