Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1985-12-18
1987-08-25
McElheny, Jr., Donald
Facsimile and static presentation processing
Facsimile
Recording apparatus
H04N 9493
Patent
active
046896953
ABSTRACT:
A video signal reproducing apparatus for reproducing a video signal which is recorded by such a manner that a plurality of component signals forming a video signal are time-base-compressed, modulated and then recorded on a recording medium having a head reading the time-base-compressed component signals, a demodulator demodulating the read-out time-base-compressed component signals, a dropout detector detecting a dropout in the read-out time-base-compressed component signals and producing a dropout signal, an adder superimposing the dropout signal upon the demodulated time-base-compressed component signals, a time-base-expander expanding the time bases of the time-base-compressed component signals and that of the dropout signal derived from the adder and producing a plurality of component signals and a dropout signal the time bases of which are expanded to be the normal time bases, a dropout signal detector detecting the superimposed dropout signal from the plurality of time-base-expanded component signals, a signal compensator replacing the plurality of component signals by preceding component signals when the dropout signal is detected by the dropout signal detector, and a signal processor obtaining a reproduced video signal from the plurality of component signals passed through the signal compensator, wherein the dropout signal is time-base-expanded by the time-base-expander so as to become the ordinary time base same as that of the demodulated signal.
REFERENCES:
patent: 4628369 (1986-12-01), Ichinoi et al.
Eslinger Lewis H.
McElheny Jr. Donald
Sinderbrand Alvin
Sony Corporation
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