Magnetic reproducing apparatus having circuit for preventing rev

Details Magnetic reproducing apparatus having circuit for preventing rev Magnetic reproducing apparatus having circuit for preventing rev

1989-10-19

1993-06-15

Sniezek, Andrew L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

4552341, 360 65, H04N 552

Patent

active

052204278

ABSTRACT:
A magnetic reproducing apparatus wherein reversal of white peak is reduced in the luminance signal reproducing system. This magnetic reproducing apparatus includes a negative feedback circuit for applying a negative feedback to an input FM signal obtained by reproducing a magnetic recording, and a demodulation circuit responsive to an FM signal outputted from the negative feedback circuit to demodulate it, thus to provide a reproduced luminance signal. The negative feedback circuit includes an amplifier circuit having a non-inverting input terminal to which FM signal or a signal corresponding thereto is delivered, a first limiter circuit for applying amplitude limiting to the output signal from the amplifier circuit, and a delay circuit for delivering, to the amplifier circuit, a delay signal which lags the amplitude limited signal from the first limiter circuit by a phase angle of 90 degrees in the carrier frequency band of the FM signal.

REFERENCES:
patent: 4064537 (1977-12-01), Ota et al.
patent: 4110798 (1978-08-01), Miller et al.
patent: 4170023 (1979-10-01), Yamakoshi et al.
patent: 4303952 (1981-12-01), Yamamitsu et al.
patent: 4363053 (1982-12-01), Kanamoto et al.
patent: 4470080 (1984-09-01), Kimura
patent: 4510536 (1985-04-01), Tabata et al.
patent: 4682251 (1987-07-01), Hirota et al.
patent: 4730165 (1988-03-01), Nishino et al.
patent: 4819098 (1989-04-01), Ryan
patent: 4821087 (1989-04-01), Horjo
patent: 5020147 (1991-05-01), Okanobu

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