Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-09-13
2005-09-13
Kelley, Chris (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
06944223
ABSTRACT:
An error recovery method of a video transfer system includes the steps of: setting a refresh rate on the basis of a packet loss rate of a video frame; and encoding a macro-block of the video frame in an intra mode according to the set refresh rate. Since the effective intra encoding method in consideration of the packet loss rate is provided, the image state of the receiving party can be taken into consideration and a mobile image service of a high picture quality can be provided on a real time basis. In addition, since the error recovery method of a video transfer system of the present invention has the flexible refresh rate considering the image state (the picture quality state) of the receiving party, it is suitable for the error recovery method for a high picture quality video transferring.
REFERENCES:
patent: 6151636 (2000-11-01), Schuster et al.
patent: 2001/0026677 (2001-10-01), Chen et al.
patent: 2002/0172283 (2002-11-01), Kawakatsu et al.
patent: 2003/0031128 (2003-02-01), Kim et al.
patent: 2004/0114684 (2004-06-01), Karczewicz et al.
Lee Hong Degerman Kang & Schmadeka
LG Electronics Inc.
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