Recording-medium driving apparatus and recording-medium driving

Details Recording-medium driving apparatus and recording-medium driving Recording-medium driving apparatus and recording-medium driving

1997-05-19

1998-11-24

Tran, Thang V.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 54, 369124, G11B 700

Patent

active

058417516

ABSTRACT:
When a signal is played back from an injured portion of an optical disk, immediately after the reproduction of the signal from the injured portion, a mirror signal can be obtained with a high degree of accuracy from conversion of a traverse signal into a binary signal. In a traverse-signal discriminating circuit, a traverse signal, a low-frequency component of a playback signal, is separated from the playback signal and then supplied a hold circuit. In the hold circuit, the bottom of the traverse signal is held in order to produce a bottom hold signal. In a defect detecting circuit, in the mean time, a defect in the playback signal, if any, is detected. If a defect is detected, the defect detecting circuit outputs a defect signal at an H level to a hold-voltage resetting circuit. The hold-voltage resetting circuit discharges a capacitor included in the hold circuit, halting the operation to hold the bottom of the traverse signal as long as the defect signal supplied thereto is set at the H level.

REFERENCES:
patent: 4385328 (1983-05-01), Tanaka
patent: 4924447 (1990-05-01), Fuji et al.
patent: 5140573 (1992-08-01), Ando
patent: 5396477 (1995-03-01), Matsumoto et al.
patent: 5475342 (1995-12-01), Nakamura et al.

Affiliated with

Also associated with

Rating

Recording-medium driving apparatus and recording-medium driving does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording-medium driving apparatus and recording-medium driving , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording-medium driving apparatus and recording-medium driving will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1710962