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Recording method, recording apparatus, and recording medium

A recording method and recording medium technology, applied in the direction of optical recording/reproduction/erasing method, data recording, optical recording head, etc.

Inactive Publication Date: 2006-10-11
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, these differences occur even when discs are made by the same manufacturer

Method used

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  • Recording method, recording apparatus, and recording medium
  • Recording method, recording apparatus, and recording medium
  • Recording method, recording apparatus, and recording medium

Examples

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Embodiment Construction

[0079] Hereinafter, the present invention will be described with reference to the accompanying drawings using illustrated examples.

[0080] 1. Structure of recording / reproducing device 100

[0081] figure 1 is a diagram showing the recording / reproducing device 100 of the embodiment of the present invention.

[0082] The recording / reproducing apparatus 100 is configured such that a recording medium 101 for recording / reproducing data (hereinafter referred to as "optical disc 101") is loaded therein.

[0083] The recording / reproducing apparatus 100 includes an optical head 106 , a spindle motor 107 , a system control circuit 102 , a recording circuit 120 and a reproducing circuit 130 .

[0084] The system control circuit 102 controls operations of elements included in the recording / reproducing device 100 . The optical head 106 condenses light emitted from the semiconductor laser, and emits the condensed light toward the optical disc 101 . The spindle motor 107 drives and rotat...

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PUM

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Abstract

There is provided a recording method comprising the steps of: (a) generating a plurality of pulse trains corresponding to a plurality of linear velocities; (b) while rotating a recording medium at a linear velocity selected from the plurality of linear velocities, by At least one of recording marks and spaces is formed by irradiating the recording medium with a pulse sequence selected from a plurality of pulse sequences, wherein the pulse sequence corresponds to a linear velocity. The step (a) includes the following steps: (a-1) measuring at least one first recording parameter corresponding to at least one linear velocity selected from a plurality of linear velocities; (a-2) based on the measured at least one first recording parameter A recording parameter, determining a second recording parameter corresponding to a plurality of linear velocities; and (a-3) generating a plurality of pulse sequences corresponding to a plurality of linear velocities based on the measured second recording parameter.

Description

field of invention [0001] The present invention relates to a recording method and recording apparatus for forming at least one of recording marks and spaces on a recording medium by irradiating the recording medium with a sequence of light pulses while rotating the recording medium at a predetermined linear velocity. The present invention also relates to a recording medium storing predetermined information. technical background [0002] When performing constant angular velocity (CAV) information recording on an optical disc, it is necessary to optimize recording parameters for each of continuously changing linear velocities. The term "CAV recording" refers to a technique for recording information on an optical disc while changing a recording clock having a period T so that the linear density of recorded data is constant, depending on changes in linear velocity. [0003] Japanese Patent Laid-Open Publication No. 2001-344754 discloses a method for determining an optimum recor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/0045G11B7/006G11B7/007G11B7/125G11B7/1267
CPCG11B7/00455G11B7/0062G11B7/00736G11B7/1267G11B7/00G11B7/0045G11B20/10
Inventor 小石健二
Owner PANASONIC CORP
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