06057872 is referenced by 410 patents and cites 11 patents.

Digital coupons are selectively transmitted in a communication network to subscriber terminals for promotional purposes. Subscribers automatically receive coupon credits when they meet the preconditions of the digital coupons. Free or reduced price pay-per-view (PPV) programming in particular may be provided when a subscriber purchases a given number of PPV programs at a regular price. The terminals maintain a running balance of available coupon credits and inform the subscriber via a user interface of the available balance. Subscribers can be rewarded for viewing commercial messages by awarding coupons which can be immediately redeemed for PPV programs. With an optional report back capability, terminal usage pattern data can be retrieved and analyzed by program service providers to determine the effectiveness of the promotions and to gather additional demographic and individual data. The integrity of the scheme is assured with encryption techniques.

Title
Digital coupons for pay televisions
Application Number
8/890066
Publication Number
6057872
Application Date
July 9, 1997
Publication Date
May 2, 2000
Inventor
Brant Candelore
San Diego
CA, US
Agent
Ralph F Hoppin
Barry R Lipsitz
Assignee
General Instrument Corporation
PA, US
IPC
H04N 7/10
View Original Source