G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.2
G11B 7/00 (2006.01) G11B 7/005 (2006.01) G11B 7/007 (2006.01) G11B 20/10 (2006.01) G11B 27/19 (2006.01) G11B 27/24 (2006.01) G11B 27/30 (2006.01) H03K 5/08 (2006.01)
Patent
CA 1228918
- 18 - ABSTRACT OF THE DISCLOSURE 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 synchronising data present on the disc, the synchroni- sing 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 utilised in particular in a device for rephasing the clock emitting the read pulses.
457925
Lecomte Daniel
Romeas Rene
Goudreau Gage Dubuc
Thomson-Csf
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