Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1996-02-28
1998-02-17
Hindi, Nabil
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369124, G11B 700
Patent
active
057198420
ABSTRACT:
An excellent waveform signal with less jitter is obtained as output signal from a reproducing optical pickup, irrespective of a relative reading speed, and an equalizing circuit is dispensed with on a reproducing apparatus side. An input bit sequence or a recording NRZI signal is provided with spatial frequency characteristics G(fs) by a G(fs) converter. An output signal from the G(fs) converter is provided with equalizing frequency characteristics EQ(fs) necessary on a reproducing side by an EQ(fs) converter. An output from the EQ(fs) converter is saturation-amplified by a saturation amplifier, thereby producing an ideally pre-jittered recording signal that has equivalent enhanced high-frequency component. The recording signal is recorded on an optical disk.
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Hirayama Koichi
Satoh Hiroharu
Hindi Nabil
Kabushiki Kaisha Toshiba
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