Compact disk players

Details Compact disk players Compact disk players

1991-03-04

1993-05-11

Pascal, Robert J.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 54, 369 58, 369 59, G11B 700

Patent

active

052107272

ABSTRACT:
In a compact disk player, a demodulator (2) demodulates signals picked up from a disk, an error detection circuit (8) corrects the demodulated data, and an interpolation circuit (10, 12, 14, 16) interpolates output data from the error detection correction circuit according to a result of the error correction. A level setting circuit (10, 12, 16) sets to zero the level of data which has not been error corrected in a peak search, according to the error correction result, and a peak level detection circuit (20, 22, 24, 26) detects a peak level of digital audio signals outputted by the level setting circuit.

REFERENCES:
patent: 4587643 (1986-05-01), Marinus et al.
patent: 4631714 (1986-12-01), Kahlman et al.
patent: 4641295 (1987-02-01), Furukawa et al.
patent: 5134607 (1992-07-01), Fuji et al.

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