Content protection through the audio and video decrypting and decoding device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
May 16, 2002
app pub date -
Apr 11, 2001
filing date -
Nov 10, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A secure platform in which the decrypting or decoding of secure audio or video data is done on a peripheral device of the computing platform, thus preventing software applications and drivers running on the computing platform from having access to the digital audio or video data after it has been decrypted or decoded. The unprotected digital audio or video data may then be converted from a digital format into an analog format before leaving the peripheral device, thus making exact digital reproduction no longer possible due to the inherent degradation of audio or video quality in the conversion process from digital to analog and then back to digital.
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