Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2003-12-03
2008-12-02
Rao, Andy S (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240180, C375S240190
Reexamination Certificate
active
07460600
ABSTRACT:
An MPEG video decoding system including: a buffer for storing an MPEG-formatted or a DV-formatted video signal; a VLD/IQ unit for performing a variable length decoding and an inverse quantization of the video signal; an IDCT device for selectively performing an 8×8 IDCT and a 4×8 IDCT according to the format of the inversely quantized signal; an adder for bypassing and storing the output signal of the IDCT unit into an external memory if the output signal of the IDCT unit is an MPEG-formatted I-picture or a DV format, and for adding the IDCT-ed signal and a motion compensated signal if the output signal of the IDCT device is an MPEG-formatted P-picture or B-picture; and a motion compensator for performing a motion compensation outputting the motion compensated signal to the adder, if the output signal of the IDCT device is the MPEG-formatted P-picture or the MPEG-formatted B-picture.
REFERENCES:
patent: 6295320 (2001-09-01), Lim et al.
patent: 6389171 (2002-05-01), Washington
patent: 6618442 (2003-09-01), Chen et al.
patent: 6741292 (2004-05-01), Shen et al.
patent: 6944226 (2005-09-01), Lin et al.
patent: 7012961 (2006-03-01), Rhee et al.
patent: 7136417 (2006-11-01), Rodriguez
patent: 2004/0086000 (2004-05-01), Wallace et al.
Kim Eung Tae
Seo Byeong Chan
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Rao Andy S
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