| 摘要 |
A device receives an advertisement, a code, an encryption key, and information associated with a product and/or service, and provides the advertisement to a set-top box (STB) for display on a television. The device receives, from the STB, a request for a promotion associated with the advertisement and an identification associated with the STB, and provides the code associated with the product and/or service to the STB for display on the television. The device receives, from a user device, a claim for the code and the identification associated with the STB, and validates the claim for the code and the identification associated with the STB based on an identification associated with the user device. |
