Television – Bandwidth reduction system – Data rate reduction
Patent
1996-03-26
1998-05-19
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348412, 348561, 348581, 348438, H04N 712, H04N 1102, H04N 1104, H04N 544
Patent
active
057542384
ABSTRACT:
In a picture signal decoding method, preceding of the display operation to the decoding operation can be prevented as to a bidirectional predictive picture. When the user specifies an arbitrary magnification display mode in which a part of a decoded picture is magnified to an arbitrary size and displayed on a display screen, the decoding operation of an input picture signal which corresponds to a bidirectional predictive picture in input picture signals is started from a signal portion corresponding to the input display start position. Thereby, a picture signal decoding apparatus in which decoding operation can always be finished before display operation starts, can be accomplished with a simple construction.
REFERENCES:
patent: 5068731 (1991-11-01), Takeuchi
patent: 5107334 (1992-04-01), Matsumoto
patent: 5377051 (1994-12-01), Lane et al.
patent: 5539466 (1996-07-01), Igarashi
patent: 5543932 (1996-08-01), Chang et al.
patent: 5552834 (1996-09-01), Matsushima
patent: 5574504 (1996-11-01), Yagasaki et al.
SGS-Thomson Microelectronics STi3240, MPEG/H.261 Video Decoder; pp. 1-51 and section 7.2. Jul. 1992.
Koyanagi Hideki
Wada Toru
Chin Tommy P.
Diep Nhon T.
Frommer William S.
Sony Corporation
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