Information signal reproduction apparatus

A composite information signal reproducing apparatus for reproducing a composite information signal from a recording medium having a record of the composite information signal formed by frequency multiplexing a frequency modulated luminance signal with a frequency modulated audio signal which has a different frequency band from that of the frequency modulated luminance signal, comprising:

• a) reproducing means for reproducing the composite information signal recorded on the recording medium and outputting the reproduced information signal;
• b) first detecting means arranged to extract the frequency modulated luminance signal from the composite information signal output from said reproducing means, to perform a detecting action on the frequency modulated luminance signal extracted and to output a first detection signal;
• c) second detecting means arranged to extract the frequency modulated audio signal from the composite information signal output from said reproducing means, to perform a detecting action on the frequency modulated audio signal extracted and to output a second detection signal;
• and
• d) correcting means arranged to compare the first detection signal output from said first detecting means with the second detection signal output from said second detecting means and to correct the frequency characteristic of the composite information signal output from said reproducing means or to lessen a noise component generated in the composite information signal according to the result of the comparison.

A frequency modulated video signal reproducing apparatus for reproducing a frequency modulated video signal from a recording medium having a record of the frequency modulated video signal formed by frequency modulating a video signal which includes synchronizing signals, comprising:

• a) reproducing means for reproducing the frequency modulated video signal recorded on the recording medium and outputting the reproduced video signal;
• b) first detecting means arranged to extract a signal of the video period of the frequency modulated video signal output from said reproducing means, to perform a detecting action on the signal extracted and to output a first detection signal;
• c) second detecting means arranged to extract a signal of the synchronizing period of the frequency modulated video signal output from said reproducing means, to perform a detecting action on the signal extracted and to output a second detection signal;
• and
• d) correcting means arranged to compare the first detection signal output from said first detecting means with the second detection signal output from said second detecting means and to correct the frequency characteristic of the frequency modulated video signal output from said reproducing means or to lessen a noise component generated in the frequency modulated video signal according to the result of the comparison.