Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1996-09-27
1998-04-28
Tran, Thai
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 95, 386111, H04N 576, H04N 5781
Patent
active
057456453
ABSTRACT:
A signal conversion recording method applies a signal recording method whereby a video signal converted to a frame rate greater than the frame rate of the signal source by repeating particular fields plural times is converted to an intermediate signal having a frame rate substantially equal to the frame rate of the original signal source by deleting these repeated redundant fields. This intermediate signal is compression coded to obtain the recording signal, and the recording signal is recorded to a recording medium together with a repeat first field flag RFF declaring whether a field was deleted, and a top field first flag TFF declaring which of the two fields in the each of the resulting frames is first on the time-base, wherein when plural logical recording periods are provided on a single recording medium, said video signal is converted to the recording signal so that said flags hold particular values at the start and end of each recording period.
REFERENCES:
patent: 5191427 (1993-03-01), Richards et al.
patent: 5353119 (1994-10-01), Dorricott et al.
patent: 5374954 (1994-12-01), Mowry
patent: 5481543 (1996-01-01), Veltman
patent: 5510902 (1996-04-01), Fujinami et al.
Hasebe Takumi
Mizuguchi Noboru
Mori Yoshihiro
Nakamura Kazuhiko
Tsuga Kazuhiro
Matsushita Electric - Industrial Co., Ltd.
Tran Thai
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