| 摘要 |
<p>Disclosed is a system for conditionally presenting selected categories of advertising to viewers. Advertisements (526, 528, 530, 532, 534, 536) may be included as part of a broadcast signal, may be acquired from a channel or MPEG stream different from a viewed program (502), may be downloaded from network (522) including the Internet and may be stored locally (516) in a set topbox. Computer program code operating in a set top box (518) selects an advertisment from a plurality of ads based upon indicator information including category and priority level.Viewer category selections may be entered by the user, may be selected in response to use of a personalized remote control, or may be provided in a pre-programmed set top box. Viewer requests for categories of advertisments or for specific advertisments maybe processed by upstream equipment to formulate a broadcast schedule. Viewer may pay upgrade fee for viewing upgraded advertising and/or advertisers may pay a fee based upon the number of times an ad is displayed.</p> |
