H - Electricity – 03 – M
Patent
H - Electricity
03
M
H03M 1/34 (2006.01) G11B 20/10 (2006.01) G11B 20/14 (2006.01)
Patent
CA 2045963
A process and a circuit arrangement are provided for recovering digital signals from a recording of the digital signals. The recorded signals are read by a read head of a storage device on sensing a storage medium. The signals read by the read head are converted into processed read signals by amplification and filtering compensation for linear distortion, amplitude control, etc. Thereafter the profile of the processed read signal is sensed and compared with a stored read signal comparison pattern which corresponds to a normal read signal. In the case of agreement, which is given on the presence of a certain correlation, this part of the read signal is evaluated as a read pulse and on non-agreement as a non-pulse.
Dans un circuit de conversion de signaux analogiques lus par la tête de lecture d'un dispositif de stockage quand celui-ci détecte la présence d'un support de stockage, les signaux lus sont convertis en signaux numériques par amplification et par filtrage des distorsions linéaires, etc. Le profil du signal analogique traité est ensuite établi et comparé avec une configuration de signal lu stocké correspondant à un signal lu normal. En cas de coïncidence, laquelle est établie à partir d'une certaine corrélation, cette partie du signal lu est considérée comme une impulsion lue; en cas de non-coïncidence, la partie du signal lu est considérée comme une absence d'impulsion.
Quantum Corporation
Smart & Biggar
LandOfFree
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