Level controlled readout system for formatted record recorded on

Details Level controlled readout system for formatted record recorded on Level controlled readout system for formatted record recorded on

1984-06-26

1987-06-09

Canney, Vincent P.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 48, H04N 576, G11B 509

Patent

active

046725962

ABSTRACT:
The invention relates to the reshaping of a read signal in such a manner as to compensate for possible distortions, in particular of its cyclic ratio. During a time interval selected by a control device as as function of synchronizing data present on the disc, the synchronizing information is integrated by means of an integrator. The voltage threshold obtained is compared with the data read by means of a comparator circuit. The result of the comparison gives rise to a signal of rectangular form. This signal may usefully serve the purpose of adjusting the phase of the read system. The device may be utilized in particular in a device for rephasing the clock emitting the read pulses.

REFERENCES:
patent: 4566092 (1986-01-01), Gerard et al.

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