JP2007519140 符号付き偏差による訂正の方法、装置及び記録担体

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Application Number 2006520096

Application Date 15.07.2004

Publication Number 2007519140

Publication Date 12.07.2007

Publication Kind A

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Applicants コーニンクレッカ　フィリップス　エヌ　ヴェ

Inventors ヘラルド　イー　エヌ　シュラールズ
ヘラルドゥス　アール　ランヘリーズ

Agents 伊東　忠彦
箱守　英史

Priority Data 03102199.1 17.07.2003 EP

Title

(JA) 符号付き偏差による訂正の方法、装置及び記録担体

Abstract

(JA)

記録担体上のトラックに情報を記録するための記録装置は、公称ランレングスを有するマーク及びスペースの書き込み及び読み取り処理を行う。この装置は検出ユニット（３２）を有し、この検出ユニットは、マークの開始エッジ及び終端エッジの公称位置に対するこれら開始エッジ及び終端エッジの双方又はいずれか一方の位置偏差を表す符号付き偏差値信号（３４）を発生する。計算ユニット（３１）は、予め定められたランレングスのパターンの少なくとも１つを選択し、この選択されたランレングスのパターンに対する符号付き偏差値信号の少なくとも１つの統計的に計算されたパラメータに基づき、訂正信号（３３）を決定する。放射源制御ユニット（２９）は、この訂正信号に従い書き込み処理中に放射源の出力を制御する。

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7	Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
004	Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0045	Recording

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7	Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12	Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125	Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
20	Signal processing not specific to the method of recording or reproducing; Circuits therefor
10	Digital recording or reproducing
18	Error detection or correction; Testing

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7	Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
004	Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0045	Recording

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7	Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12	Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125	Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces

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1. JP2007519140 - 符号付き偏差による訂正の方法、装置及び記録担体

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11	Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10	using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105	using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10502	characterised by the transducing operation to be executed

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11	Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10	using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105	using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10595	Control of operating function

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11	Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10	using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105	using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10502	characterised by the transducing operation to be executed

G	PHYSICS
11	INFORMATION STORAGE
B	INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11	Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10	using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105	using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10595	Control of operating function