Digital video recorder using circular file management and...

Details Digital video recorder using circular file management and... Digital video recorder using circular file management and...

2007-01-23

2007-01-23

Tran, Thai (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

Reexamination Certificate

active

09943791

ABSTRACT:
There is disclosed a digital video recorder that uses a circular file management system to efficiently manage time-shifted viewing a live video broadcast television program. There is provided for use in the digital video recorder, an apparatus for performing time-shifted viewing of an incoming television program being received by the digital video recorder. The apparatus comprises a controller capable of creating a data file having a defined maximum size on a storage disk of the digital video recorder and capable of causing video data associated with the incoming television program to be stored sequentially in the data file from a first location to an Nth location. The controller, in response to a determination that the video data has been stored in the Nth location, causes a next received video data to be stored in the first location.

REFERENCES:
patent: 5371551 (1994-12-01), Logan et al.
patent: 5438423 (1995-08-01), Lynch et al.
patent: 6378035 (2002-04-01), Parry et al.
patent: 6434748 (2002-08-01), Shen et al.
patent: 6788882 (2004-09-01), Geer et al.
patent: 0 762 756 (1997-03-01), None
patent: WO 96/33579 (1996-10-01), None

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