Digital signal reproducing circuit

Details Digital signal reproducing circuit Digital signal reproducing circuit

1987-09-29

1989-07-18

Canney, Vincent P.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

360 65, G11B 700, G11B 1514

Patent

active

048499579

ABSTRACT:
An apparatus for reproducing digital record signals subjected to a predetermined frequency characteristic in a recording process and digital record signals not subjected to the frequency characteristic, the digital record signals including data for discrimination of the predetermined frequency characteristic. The apparatus includes an input terminal for receiving digital record signals, a circuit for detecting the predetermined frequency characteristic discrimination data, a digital processing circuit responsive to the detecting circuit for selectively giving the digital record signals applied from the input terminal a first prescribed frequency characteristic corresponding to the predetermined frequency characteristic in the recording or a second prescribed frequency characteristic, a digital-to-analog converter for converting the digital record signals applied from the digital processing circuit to analog signals and an amplifier for amplifying the analog signals applied from the digital-to-analog converter with a prescribed frequency characteristic capable of compensating for the predetermined frequency characteristic in the recording.

REFERENCES:
patent: 4542369 (1985-09-01), Kasuga
patent: 4580128 (1986-04-01), Ogita et al.
patent: 4620158 (1986-10-01), Yasukawa
patent: 4675749 (1987-06-01), Banno et al.

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