Artifact-free displaying of MPEG-2 video in the...

Details Artifact-free displaying of MPEG-2 video in the... Artifact-free displaying of MPEG-2 video in the...

2005-09-06

2005-09-06

Vo, Tung (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

06940904

ABSTRACT:
A method and apparatus for decoding and displaying a progressive refresh bitstream, such as, for example, Motorola/GI HITS bitstream, is provided. The method avoids displaying artifacts caused by displaying incompletely decoded pictures after channel acquisition. After the channel acquisition, an entry picture, a P-picture with the refreshed I-slices at the top of the picture, is first displayed with all pixels below the refreshed I-slices zeroed (blacked) out. Then the subsequent P-pictures are displayed with all pixels below their respective refreshed I-slices zeroed out. Once a P-picture has been completely decoded, normal decoding process is started.

REFERENCES:
patent: 5568200 (1996-10-01), Pearlstein et al.
patent: 2001/0026677 (2001-10-01), Chen et al.
patent: 2002/0048321 (2002-04-01), Katayama
patent: 0 485 798 (1992-05-01), None
patent: 1 009 166 (2000-06-01), None
EP Search Report for EP Application No. 02090191.4, dated Oct. 5, 2004.

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