Patent ID: 7707069
Filing Date: 2010-04-27
Classification: G06Q,G10L,G11B,H04N

Abstract:
1. A method of operating a server of a merchant computer system, the method comprising: inviting a client to make a selection from a range of audio/video products stored by the server in product files; receiving a client selection for evaluation of one of the products; reading the selected product file to generate a digital audio/video signal; defining a level of content degradation dependent on an authorization response received by the server from a remote payment gateway computer system following an authorization request by the server including a client i.d., a client payment instrument and a monetary value of the product selected for evaluation; applying the defined level of content degradation to the digital audio/video signal to generate a degraded digital audio/video signal having a degradation in perceived quality corresponding to said defined level of content degradation; and outputting the degraded digital audio/video signal to the client.