JP2008210449A - Optical recording/reproducing device having charge removing function - Google Patents
Optical recording/reproducing device having charge removing function Download PDFInfo
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- JP2008210449A JP2008210449A JP2007045752A JP2007045752A JP2008210449A JP 2008210449 A JP2008210449 A JP 2008210449A JP 2007045752 A JP2007045752 A JP 2007045752A JP 2007045752 A JP2007045752 A JP 2007045752A JP 2008210449 A JP2008210449 A JP 2008210449A
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Abstract
Description
本発明は光学的記録再生装置、特に、帯電除去機能を有する光学式記録再生装置に関するものである。 The present invention relates to an optical recording / reproducing apparatus, and more particularly to an optical recording / reproducing apparatus having a charge removing function.
映像、音声、デジタルデータなどの光学式記録再生装置は既知である。 Optical recording / reproducing apparatuses for video, audio, digital data, etc. are known.
現在光学式記録再生装置に使用されているメディア(CD,MD,DVD,MOなど)は、ポリカーボネートなどの樹脂製が主流となっている。これらのメディアは低湿度状態の環境下に置かれると静電気などが帯電する。 Media (CD, MD, DVD, MO, etc.) currently used in optical recording / reproducing apparatuses are mainly made of resin such as polycarbonate. These media are charged with static electricity when placed in a low humidity environment.
本発明者は種々実験、研究の結果メディアを帯電した状態のまま記録再生装置に装填し、通常の記録再生装置で記録再生をすると、記録及び再生用レーザーピックアップにメディアの帯電と装置内部の電子部品から発生する高周波ノイズや電磁波ノイズなどとの相互作用により、電界や磁界が発生し、更に信号読み取り動作のためにメディアが回転するので、メディアとレーザーピックアップ及び記録用ヘッドの間の電界や磁界が乱れ、これにより、ピックアップやヘッドの電磁制御動作を狂わせ、デジタルデータのエラーレートやジッターの上昇を招き、デジタルデータの良好な記録再生の妨げとなること、よって、音声記録であれば、音質悪化、映像記録であれば画質劣化、デジタルデータの記録であれば、正確なデータの記録再生に支障を来してしまうことを見出した。 As a result of various experiments and researches, the present inventor loaded a recording / reproducing apparatus with the medium charged, and recorded / reproduced the recording / reproducing apparatus with a normal recording / reproducing apparatus. Electric fields and magnetic fields are generated by the interaction with high-frequency noise and electromagnetic wave noise generated from the components, and the media rotates for signal reading operation, so the electric and magnetic fields between the media and the laser pickup and recording head This disturbs the electromagnetic control operation of the pickup and head, leading to an increase in the error rate and jitter of the digital data and hindering good recording and reproduction of the digital data. Deterioration, image quality degradation for video recording, and accurate data recording / playback for digital data recording. It was found that would Kitashi a.
本発明はかかる知見に基づいてなされたものである。 The present invention has been made based on such findings.
本発明の帯電除去機能を有する光学式記録再生装置は、回転される板状メディアと、この板状メディアの上下面の少なくとも一方の面の少なくとも一部に微小間隙を介して対向配置せしめた接地導電体とを有することを特徴とする。 An optical recording / reproducing apparatus having a charge removing function according to the present invention includes a rotating plate-shaped medium and a grounding disposed so as to be opposed to at least a part of at least one of the upper and lower surfaces of the plate-shaped medium via a minute gap. And a conductor.
また、本発明の帯電除去機能を有する光学式記録再生装置は、回転される板状メディアと、この板状メディアの外周面に微小間隙を介して対向配置せしめた接地電極ピンとを有することを特徴とする。 The optical recording / reproducing apparatus having a charge removing function of the present invention includes a rotated plate-shaped medium, and a ground electrode pin disposed opposite to the outer peripheral surface of the plate-shaped medium via a minute gap. And
また、本発明の帯電除去機能を有する光学式記録再生装置は、回転される板状メディアと、この板状メディアの上下面の何れか一方の面に対接せしめた接地良導電体とを有することを特徴とする。 An optical recording / reproducing apparatus having a charge removal function of the present invention includes a rotated plate-shaped medium and a grounding good conductor that is brought into contact with one of the upper and lower surfaces of the plate-shaped medium. It is characterized by that.
本発明の帯電除去機能を有する光学式記録再生装置によれば、メディアに生じた帯電を除去でき、レーザーピックアップの誤動作を防止し、デジタルデータのエラーレートやジッターを低減させることが可能となり、良好なデジタルデータ、映像音声データの記録再生を可能とすることができる。 According to the optical recording / reproducing apparatus having the charge removal function of the present invention, it is possible to remove the charge generated on the medium, to prevent the malfunction of the laser pickup, and to reduce the error rate and jitter of the digital data. It is possible to record and reproduce digital data and video / audio data.
以下図面によって本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
図1において1はCD等の板状メディア、2はこの板状メディア1を保持するチャッキングプレート、3は板状メディア1を回転駆動するモーターを示し、本発明においては上記板状メディアの上下面の少なくとも一方の面の少なくとも一部に微小間隙を介して銅板、銀板等の良導電体4を対向配置し、この導電体4を接地せしめる。
In FIG. 1, 1 is a plate-like medium such as a CD, 2 is a chucking plate for holding the plate-
本発明の帯電除去機能を有する光学式記録再生装置は上記のような構成であるからメディア1に生じた帯電、従ってこれに基づく電界や磁界が除去され、レーザーピックアップの誤動作を防止し、デジタルデータのエラーレートやジッターを低減させることが可能となり、良好なデジタルデータ、映像音声データの記録再生を可能とすることが確認された。更に映像データであれば、良好な画質、音声データであれば良好な音質が得られるようになることが確認された。
Since the optical recording / reproducing apparatus having the charge removing function of the present invention is configured as described above, the charging generated in the
本発明の他の実施例においては図2に示すようにメディア1の外周面にこれより微小間隙離して電極ピン5の先端を対向配置し、この電極ピン5を接地せしめる。
In another embodiment of the present invention, as shown in FIG. 2, the tip end of the electrode pin 5 is disposed opposite to the outer peripheral surface of the
この実施例によっても上記実施例1と同様の効果が得られる。なお、更に光学式記録再生装置の電気回路にアースを取ることや、メディア1を載せるチャッキングプレート2を導電性金属とし、モーター3のセンターシャフトを介して電気的に接地させることがより好ましい。
According to this embodiment, the same effect as in the first embodiment can be obtained. It is more preferable to ground the electric circuit of the optical recording / reproducing apparatus, or to make the
本発明の更に他の実施例においては図3に示すようにターンテーブル6によって支承され、回転されるメディア1の下面に銅板や銀板等の板状良導電体7を対接し、この板状7の例えば外周面に例えば接地された金属ワイヤ(図示せず)をスリップ自在に対接せしめる。
In still another embodiment of the present invention, as shown in FIG. 3, a plate-like good conductor 7 such as a copper plate or a silver plate is brought into contact with the lower surface of the
この実施例によっても上記実施例1と同様の効果が得られる。 According to this embodiment, the same effect as in the first embodiment can be obtained.
1 メディア
2 チャッキングプレート
3 モーター
4 導電体
5 電極ピン
6 ターンテーブル
7 板状良導電体
1
Claims (3)
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JP2007045752A JP4763630B2 (en) | 2007-02-26 | 2007-02-26 | Optical recording / reproducing apparatus having a charge removing function |
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JP2007045752A JP4763630B2 (en) | 2007-02-26 | 2007-02-26 | Optical recording / reproducing apparatus having a charge removing function |
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JP4763630B2 JP4763630B2 (en) | 2011-08-31 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013109790A (en) * | 2011-11-17 | 2013-06-06 | Alpine Electronics Inc | Disk device |
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JP2013109790A (en) * | 2011-11-17 | 2013-06-06 | Alpine Electronics Inc | Disk device |
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