发明名称 |
Supply of digital audio and video products |
摘要 |
A server for a merchant computer system, the server comprising: a file store for storing a range of audio/video products in respective product files; a dialogue unit having a network connection and operable to invite and receive a client selection from among the products via the network connection; a product reader for reading the product files to generate a digital audio/video signal; a digital signal processing unit having an input connectable to receive the digital audio/video signal from the product reader, a processing core operable to apply a defined level of content degradation to the digital audio/video signal, and an output connected to output the degraded digital audio/video signal from the processing core to the network connection. It is therefore possible for a content provider to change the characteristics of an audio or video data stream supplied over a network to a potential purchaser in a controlled and variable manner. The amount of degradation is sufficient to enable a potential purchaser to appreciate the characteristics of the audio or video product, whilst reducing the perceived quality. <IMAGE>
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申请公布号 |
EP1089242(A1) |
申请公布日期 |
2001.04.04 |
申请号 |
EP19990400886 |
申请日期 |
1999.04.09 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED;TEXAS INSTRUMENTS FRANCE |
发明人 |
THOMAS, DAVID R.;COLE, EDWIN RANDOLPH |
分类号 |
G06Q20/12;G06Q30/06;G07F17/16;G10L21/00;G11B20/10;H04N7/173;H04N21/222;H04N21/2343;H04N21/2543;H04N21/472;H04N21/8549;(IPC1-7):G07F17/16 |
主分类号 |
G06Q20/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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