RECOVERABLE DIGITAL CONTENT DEGRADATION

摘要

The disclosure relates generally to processing audio and video signals. One claim recites an apparatus comprising: electronic memory for storing a media signal, the media signal comprising degradation introduced through use of a key, in which the key corresponds to detection criteria in the media signal, and in which the degradation comprises human perceptible degradation, the media signal further comprising the key embedded therein; and a processor programmed for: analyzing the media signal to obtain the key; and removing some of the degradation through use of the key, in which said removing utilizes different detection criteria relative to a process that introduced the degradation into the media signal. Of course, other claims and combinations are provided too.

主权项

1. An apparatus comprising:
electronic memory for storing a media signal, the media signal comprising embedded degradation data therein, the degradation data having a signal level that is perceptible to a human observer of the media signal when rendered unless removed, in which the media signal remains perceptibly discernable to the human observer despite embedded degradation data, an input to receive a specific key, the specific key providing self-synchronization allowing for removal of the degradation data including removal when the media signal is accessed randomly; a processor programmed for removing the embedded degradation data using the specific key to reduce the perceptibility of the degradation data at rendering.