DISK REPRODUCING DEVICE - SANYO ELECTRIC CO

Title:

DISK REPRODUCING DEVICE

Document Type and Number:

WIPO Patent Application WO/2001/088907

Kind Code:

A1

Abstract:

A disk reproducing device comprising a variable gain amplifier (VCA) (32) that gives a radial push-pull signal including an address signal and an FCM leaking signal to a switch (38). The switch outputs only the address signal to a peak hold circuit (40) based on an FCM mask signal from a mask signal generating circuit (36). The peak hold circuit generates the peak hold signal of the address signal for outputting to DSP (30) that controls a VCA gain based on the peak hold signal. In addition, a radial push-pull signal having gain controlled based on the address signal is given to an address detection circuit (42), and the address signal is detected.

Inventors:

ONAKA TAKASHI DI
MINECHIKA SHIGEKAZU (JP)
TADA KOICHI (JP)

Application Number:

PCT/JP2001/003490

Publication Date:

November 22, 2001

Filing Date:

April 23, 2001

Export Citation:

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Assignee:

SANYO ELECTRIC CO (JP)
ONAKA JUNKO HF (JP)
MINECHIKA SHIGEKAZU (JP)
TADA KOICHI (JP)

International Classes:

G11B7/0037; G11B7/004; G11B7/005; G11B7/007; G11B7/09; G11B20/10; G11B27/19; G11B11/105; G11B27/30; (IPC1-7): G11B7/005; G11B7/004; G11B7/007; G11B11/105

Domestic Patent References:

WO1998054703A1

1998-12-03

Foreign References:

JP2001067743A	2001-03-16
JP2001093172A	2001-04-06
JP2001067665A	2001-03-16
JPH1125461A	1999-01-29
JPH08315369A	1996-11-29
US5412632A	1995-05-02

Other References: