Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2002-05-20
2009-12-15
Tran, Thai (Department: 2621)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C713S190000, C380S217000, C380S277000
Reexamination Certificate
active
07634171
ABSTRACT:
A PC-based personal video recorder (PVR) system enables recordation of video content on a general-purpose computer in a way that the computer is unable to perceptively display the recorded content, but is able to playback and distribute the content to a decoder box (e.g., set-top box) for display on a television. In one implementation, the general-purpose computer is equipped with a personal video recorder (PVR) card having a video tuner, a network connection, and scrambling capabilities. The PVR card is configured to receive video content and produce compressed digital video. The card scrambles the video content and stores it in the computer's memory. The scrambled video content is in a form that cannot be perceptibly displayed by the computer. During playback, the PVR card retrieves the scrambled video content from the memory, descrambles it, and outputs the video content to the decoder box for playback on the television.
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Dang Hung Q
Lee & Hayes PLLC
Microsoft Corporation
Tran Thai
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