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2 298 843

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IPC

G11B11/00(2006-01-01)

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Application

2003117433/28, 2002-10-10

(24)

Start date

2002-10-10

(22)

Actual filing date

2002-10-10

(45)

Published

2007-05-10

(72)

Inventor

Khemskerk Jakobus Petrus EzefusSkhep Kornelis MarinusStek Al'BertTanaka SinitiIsibasi KhiromitiFurumija SigeruOgava KhirosiJamagami TamotsuKobajasi Soei

(73)

Holder

Koninklejke Filips Ehlektroniks N.V.Matsusita Ehlektrik Indastrial Ko.,Ltd.Soni Korporejshn

DISK DRIVE FOR DISK-SHAPED INFORMATION CARRIER, METHOD AND DEVICE FOR MANUFACTURING DISK Russian patent published in 2007 - IPC G11B11/00

Abstract RU 2298843 C2

FIELD: optical data carriers.

SUBSTANCE: in accordance to invention, in optical disk, in oscillation, recorded are information about address, modulated in accordance to system of minimal shift modulation, and information about address, modulated in accordance to modulation system, in which signals of even harmonics are added into sinusoidal signal of carrying one, and in which polarity of harmonic signal is changed depending on sign of data for modulation.

EFFECT: improved signal/noise ratio during reproduction of information, formed in oscillation components.

5 cl, 58 dwg

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RU 2 298 843 C2

Authors

Khemskerk Jakobus Petrus Ezefus

Skhep Kornelis Marinus

Stek Al'Bert

Tanaka Siniti

Isibasi Khiromiti

Furumija Sigeru

Ogava Khirosi

Jamagami Tamotsu

Kobajasi Soei

Dates

2007-05-10—Published

2002-10-10—Filed