Signal processor

Details Signal processor Signal processor

2006-06-27

2006-06-27

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S124110, C369S059220, C369S053350

Reexamination Certificate

active

07068584

ABSTRACT:
The signal processor includes an analog filter, an analog-to-digital (A-D) converter, an adaptive equalization filter, a quality value calculating circuit, and a control circuit. The analog filter removes high-frequency noises of a played-back signal from a recording medium and amplifies a specific frequency band of the played-back signal. The A-D converter converts the played-back signal from the analog filter into a digital signal. The adaptive equalization filter performs waveform equalization of the played-back signal from the A-D converter while adjusting a tap coefficient of the adaptive equalization filter so as to reduce a difference between an output of the adaptive equalization filter and a target value. The quality value calculating circuit calculates a quality value based on the difference between the output of the adaptive equalization filter and the target value. The control circuit compares the quality value calculated by the quality value calculating circuit with a predetermined reference value, and conducts a process for improving the quality value according to the comparison result.

REFERENCES:
patent: 4575857 (1986-03-01), Murakami
patent: 5475669 (1995-12-01), Yamamoto
patent: 6141168 (2000-10-01), Takahashi et al.
patent: 6476992 (2002-11-01), Shimatani
patent: P2000-200462 (2000-07-01), None
patent: 2001-126261 (2001-05-01), None
patent: 2001-266483 (2001-09-01), None
patent: 2002-008315 (2002-01-01), None

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