JP2006221781A5 - - Google Patents

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JP2006221781A5
JP2006221781A5 JP2005194493A JP2005194493A JP2006221781A5 JP 2006221781 A5 JP2006221781 A5 JP 2006221781A5 JP 2005194493 A JP2005194493 A JP 2005194493A JP 2005194493 A JP2005194493 A JP 2005194493A JP 2006221781 A5 JP2006221781 A5 JP 2006221781A5
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recording
pattern
test writing
power
recording power
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JP2005194493A
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JP4301215B2 (en
JP2006221781A (en
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光学的情報記録媒体に情報を記録する記録条件を設定するための試し書き方法であって、  A test writing method for setting recording conditions for recording information on an optical information recording medium,
記録符号列中のマーク長を、検出窓幅の自然数n倍長のマークに対して、nを2以上の整数定数で除算した剰余にしたがって分類される記録パターンを生成し、  Generating a recording pattern classified according to a remainder obtained by dividing n by an integer constant of 2 or more for a mark length in the recording code string, which is a natural number n times longer than the detection window width,
前記記録パターンのうち任意の記録パターンAを選択し、所定の方法により前記記録パターンAの記録パワーPw(A)を設定し、前記記録パターンAを前記記録パワーPw(A)で、かつ、その他の記録パターンの記録パワーを、Pw(A)を含めた一定の範囲で変化させ試し書きを行って、その他の記録パターンの記録パワーを設定することを特徴とする試し書き方法。  An arbitrary recording pattern A is selected from the recording patterns, a recording power Pw (A) of the recording pattern A is set by a predetermined method, the recording pattern A is set to the recording power Pw (A), and the others The test writing method is characterized in that the recording power of the other recording pattern is set by changing the recording power of the recording pattern in a certain range including Pw (A) and performing the test writing.
前記一定の範囲は、a×Pw(A)≦Pw≦b×Pw(A)であり、0.8≦a≦1.0であり、1.0≦b≦1.2であることを特徴とする請求項1記載の試し書き方法。  The predetermined range is a × Pw (A) ≦ Pw ≦ b × Pw (A), 0.8 ≦ a ≦ 1.0, and 1.0 ≦ b ≦ 1.2. The test writing method according to claim 1. 前記所定の方法は、前記記録パターンAについて、記録パワーを変えて記録再生し、変調度と記録パワーの関係から変調度が0となる記録パワーP0(A)を求め、P0(A)に定数pを乗じた値を、記録パターンの記録パワーPw(A)として設定する方法であることを特徴とする請求項1記載の試し書き方法。  In the predetermined method, recording power is recorded and reproduced with respect to the recording pattern A, the recording power P0 (A) at which the modulation degree becomes 0 is obtained from the relationship between the modulation degree and the recording power, and P0 (A) is a constant. 2. The test writing method according to claim 1, wherein a value obtained by multiplying p is set as a recording power Pw (A) of the recording pattern. 前記記録パターンAの前記記録パワーPw(A)における変調度を算出し、  Calculating the degree of modulation of the recording pattern A at the recording power Pw (A);
前記その他の記録パターンの、前記記録パワーPw(A)を適用したときの変調度を算出し、  Calculating the degree of modulation when the recording power Pw (A) of the other recording pattern is applied;
前記Pw(A)における変調度と、前記その他の記録パターンの変調度とを比較し、  Comparing the modulation degree in the Pw (A) with the modulation degree of the other recording pattern;
前記比較結果に応じて、記録パワーの変化させる範囲を異ならせて試し書きを行うことを特徴とする請求項1記載の試し書き方法。  2. The test writing method according to claim 1, wherein the test writing is performed by changing a range in which the recording power is changed in accordance with the comparison result.
前記その他の記録パターンの記録パワーを設定し、更に、前記その他の記録パターンのパルス幅も調整することを特徴とする請求項1記載の試し書き方法。  2. The test writing method according to claim 1, wherein the recording power of the other recording pattern is set and the pulse width of the other recording pattern is also adjusted. 光学的情報記録媒体に情報を記録する記録条件を設定するための試し書き方法であって、  A test writing method for setting recording conditions for recording information on an optical information recording medium,
記録符号列中のマーク長を、検出窓幅の自然数n倍長のマークに対して、nを2以上の整数定数で除算した剰余にしたがって分類される記録パターンを生成し、  Generating a recording pattern classified according to a remainder obtained by dividing n by an integer constant of 2 or more for a mark length in the recording code string, which is a natural number n times longer than the detection window width,
前記記録パターンのうち任意の記録パターンAを用いて試し書きを行って、記録パワーを求め、その記録パワーに定数qを乗じるあるいは定数rを加えて他方の記録パターンの記録パワーを求めることを特徴とする試し書き方法。  Test writing is performed by using an arbitrary recording pattern A of the recording patterns to obtain recording power, and the recording power of the other recording pattern is obtained by multiplying the recording power by a constant q or adding a constant r. Trial writing method.
記録パワーを決定するための試し書きパターンを記録媒体に記録する試し書きパターン記録手段と、  Test writing pattern recording means for recording a test writing pattern for determining recording power on a recording medium;
記録された前記試し書きパターンを検出する検出回路と、  A detection circuit for detecting the recorded test writing pattern;
記録された前記試し書きパターンを再生する再生回路と、  A reproduction circuit for reproducing the recorded test writing pattern;
前記試し書きパターンの再生特性を判定する判定回路と、  A determination circuit for determining reproduction characteristics of the test writing pattern;
前記判定回路にて記録不可能と判定された場合にライトエラーを表示するための回路と、  A circuit for displaying a write error when it is determined by the determination circuit that recording is impossible;
前記判定回路にて記録可能と判定された場合、前記検出回路からの信号に基づいて、記録パワーを調整する記録パワー調整回路を有し、  When it is determined that recording is possible in the determination circuit, a recording power adjustment circuit that adjusts recording power based on a signal from the detection circuit,
前記試し書きパターン記録手段は、記録符号列中のマーク長を、検出窓幅の自然数n倍長のマークに対して、nを2以上の整数定数で除算した剰余にしたがって分類される記録パターンを、記録する手段であり、  The test writing pattern recording means records a recording pattern classified according to a remainder obtained by dividing n by an integer constant of 2 or more for a mark length in a recording code string, which is a natural number n times longer than a detection window width. Is a means of recording,
前記記録パワー調整回路は、前記分類される記録パターン毎に記録パワーを設定するものであることを特徴とする情報記録装置。  The information recording apparatus, wherein the recording power adjustment circuit sets a recording power for each of the classified recording patterns.
JP2005194493A 2005-07-04 2005-07-04 Test writing method and information recording apparatus Expired - Fee Related JP4301215B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005194493A JP4301215B2 (en) 2005-07-04 2005-07-04 Test writing method and information recording apparatus

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Application Number Priority Date Filing Date Title
JP2005194493A JP4301215B2 (en) 2005-07-04 2005-07-04 Test writing method and information recording apparatus

Related Parent Applications (1)

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JP2005033771A Division JP4225282B2 (en) 2005-02-10 2005-02-10 Test writing method and information recording apparatus

Related Child Applications (1)

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JP2009054373A Division JP4692657B2 (en) 2009-03-09 2009-03-09 Test writing method and information recording apparatus

Publications (3)

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JP2006221781A JP2006221781A (en) 2006-08-24
JP2006221781A5 true JP2006221781A5 (en) 2007-07-12
JP4301215B2 JP4301215B2 (en) 2009-07-22

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JP2005194493A Expired - Fee Related JP4301215B2 (en) 2005-07-04 2005-07-04 Test writing method and information recording apparatus

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JP (1) JP4301215B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007334921A (en) 2006-06-12 2007-12-27 Hitachi Ltd Recording method, laser driving device, and optical disk device using them

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