| 摘要 |
One of the most frustrating things when recording for example songs from the radio is that many times by the time the user decides that he/she would like to record for example some song, the beginning of the song is already lost. Or the user might zap between radio stations and tune into the station after the song has already started or for example after the beginning of an interesting conversation or message or News item and is frustrated that he missed the beginning of it. Similarly, for example while zapping through cable TV stations, a user might find for example a fascinating scientific program or a fascinating report and regret that he/she had not seen or recorded it from the start for later reference. The idea of retroactive recording and/or replay has existed already since 1990 and there are a number of patents about it, but they do not deal with the problem of enabling retroactive recording and/or replay also when the user is zapping between channels for example on Radio or on TV. The present invention describes an improved system and method for automatic time-shifted retroactive recording or replay, that applies retroactive recording and/or replay also to a situation of switching between channels. Additional improvements and possible implementations are also shown, including for example improved zapping speed which can be used also without retroactive replay/recording.
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