| 摘要 |
Coupon information is stored in 2 memory at a cable television station. The cable television station may simultaneously transmit multiple video signals, each representing different sources of television pr ogramming, over multiple television channels on the cabl e network. The video signal may at times, such as during a product advertisement or oth er offer, include an embedded coupon identifier. A coupo n subsystem at the cable television station monitors each video signal and ret rieves token information from a database when it detects a corresponding embedded token identifier. The coupon information is transmitt ed over a data channel on the cable network. A subscribe r unit at the television viewer's site receives the data channel and extracts the coupon information. The television programming aural ly or visually alerts the viewer that a coupon may be generated. If the viewer act uates an input device, such as a button on a television remote control, a printer generates a coupon bearing the coupon information.</SDOAB > |
