发明名称 Commercial replacement on personal digital recordings
摘要 A recording of a televised content stream that has been recorded by a digital recorder is periodically refreshed with updated commercials by pushing the updates down to the viewer's device or pulling the updates from the source, so that when the viewer plays back the recording, he may view, if desired, commercials that are more timely than those that were originally recorded.
申请公布号 US2004083484(A1) 申请公布日期 2004.04.29
申请号 US20020282270 申请日期 2002.10.28
申请人 SONY CORPORATION;SONY ELECTRONICS INC. 发明人 ANNON RYAL KIM
分类号 H04N5/76;H04N7/16;H04N7/173;(IPC1-7):H04N7/16;H04N7/025;H04N7/10 主分类号 H04N5/76
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