METHOD AND DEVICE FOR RECORDING ONTO MAGNETIC CARRIER Russian patent published in 1995 - IPC

FIELD: magnetic recording. SUBSTANCE: instant values of signal recorded and current I are compared in winding 3 of recording head 4; the head should be corrected to reduce difference in these values. Winding is brought into positive feedback circuit of record amplifier 2. Resistor 7 has to be positive feedback signal detector; the resistor is connected in series with the winding. Negative (dividers 9 and 10) and positive (dividers 11 and 12) identical depth feedback circuits are shown on figure given in the description of the invention. Points of connection of the feedbacks with output of amplifier 2 are separated by resistor 7. EFFECT: reduced noise: widened dynamic range. 4 cl, 2 dwg