Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1986-05-15
1988-09-13
McElheny, Jr., Donald
Facsimile and static presentation processing
Facsimile
Recording apparatus
H04N 987
Patent
active
047713410
ABSTRACT:
A video signal recording and playback apparatus in which in a record mode operation a frequency-modulated luminance signal and a carrier chrominance signal whose frequency has been converted to a one lower than that of the luminance signal are written superposed on each other in a magnetic recording medium and, in a playback mode operation, the signal read out of the recording medium is separated into a reproduced color signal and a reproduced luminance signal, then the two reproduced signals are subjected to predetermined signal processing by individual signal processing systems, and then the processed signals are mixed by a mixer to produce a reproduced color video signal. The mixer to which the reproduced luminance signal is applied is preceded by a comb filter which is operable using a chrominance subcarrier frequency of the reproduced chrominance signal as a reference.
REFERENCES:
patent: 4003079 (1977-01-01), Woo
patent: 4157565 (1979-06-01), Kuniyoshi et al.
patent: 4242699 (1980-12-01), Kobayashi et al.
patent: 4524380 (1985-06-01), Shibata et al.
Matsuo Yasutoshi
Shimizu Masayuki
McElheny Jr. Donald
Victor Company of Japan , Limited
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