Video signal with super impose character data reproducing appara

Details Video signal with super impose character data reproducing appara Video signal with super impose character data reproducing appara

1997-01-09

1998-03-17

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 33, 386 40, H04N 980

Patent

active

057296510

ABSTRACT:
A video signal with superimpose character data reproducing apparatus reproduces MPEG compressed video signal from a CD-ROM. The compressed video signal read from the disc includes a plurality of blocks each having a header with a character data. The compressed video signal is expanded by an expander to a plurality of component signals, which are then modulated in modulator to a composite video signal. An extractor extracts the character data and temporarily stores it in flop-flops. The extracted character data is serially inserted in the composite video signal by synthesizer in a predetermined timing.

REFERENCES:
patent: 5027193 (1991-06-01), Kani et al.
patent: 5097348 (1992-03-01), Suetaka
patent: 5150113 (1992-09-01), Blithgen
patent: 5237424 (1993-08-01), Nishino et al.
patent: 5406381 (1995-04-01), Han
patent: 5455684 (1995-10-01), Fujinami et al.
"Recommended Practice for Line 21 Data Service", draft EIA-608, pp. 7-9, issued Jun. 17, 1993.

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