CIRCUIT, APPARATUS AND METHOD FOR STORING AUDIOVISUAL DATA

摘要

Bit-rate scalable compression for storing A/V information in a pause buffer of a digital video recorder, providing a viewer of a live program to take a delayed decision about whether or not to record the program while still viewing the "live" program at full quality, i.e. at a higher quality than the quality at which it will be stored, whereby only the "enhancement layers" need to be stored in the buffer, whereby since the bit rate of these layers is significantly lower than the bit rate for the complete compressed data, the capacity (minutes of recording time) of the buffer is significantly increased.