DEVICE FOR OPTICAL COMPANDING WHEN RECORDING AND PLAYING DATA BACK FROM MAGNET CARRIER Russian patent published in 1995 - IPC

Abstract RU 2043664 C1

FIELD: magnetic recording engineering. SUBSTANCE: recording channel of the device has input bus, bandpass filters according to number of bands, compression unit according to number of subbands, units for forming compression signals according to subbands number, adder, two record amplifiers, two recording heads, coding unit, and modulator. Playback channel has two playback heads, two playback amplifiers, bandpass filters-amplifiers according to subbands number, expanders according to subbands number, adder, output bus, demodulator, decoder-distributor. EFFECT: improved quality. 2 dwg

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RU 2 043 664 C1

Authors

Polykovskij Andrej Markovich

Dates

1995-09-10—Published

1992-10-21—Filed