JP2008210449A - Optical recording/reproducing device having charge removing function - Google Patents

Optical recording/reproducing device having charge removing function Download PDF

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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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medium
plate
optical recording
rotated
reproducing apparatus
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JP4763630B2 (en
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Masayuki Shinohara
正幸 篠原
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent an error rate or jitters of digital data from being increased because a charged medium confuses electromagnetic control operation of a pickup or a head. <P>SOLUTION: This device includes a platelike medium 1 to be rotated, and a good ground conductor 4 which is brought into contact with at least one of the upper and lower surfaces of the platelike medium 1 directly or via a very small space. The device further includes a ground electrode pin which is disposed oppositely on the outer peripheral surface of the rotated platelike medium via a very small space. <P>COPYRIGHT: (C)2008,JPO&INPIT

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-like medium 1, and 3 is a motor for driving the plate-like medium 1 to rotate. A good conductor 4 such as a copper plate or a silver plate is disposed opposite to at least a part of at least one surface of the lower surface via a minute gap, and the conductor 4 is grounded.

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 medium 1, and thus the electric and magnetic fields based on the medium 1 are removed, thereby preventing malfunction of the laser pickup and digital data. It was confirmed that it was possible to reduce the error rate and jitter, and to record and reproduce good digital data and video / audio data. Furthermore, it was confirmed that good image quality can be obtained with video data and good sound quality with audio data.

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 medium 1 with a small gap therebetween, and the electrode pin 5 is grounded.

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 chucking plate 2 on which the medium 1 is placed be a conductive metal and to be electrically grounded via the center shaft of the motor 3.

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 medium 1 supported and rotated by the turntable 6, and this plate-like shape is used. For example, a grounded metal wire (not shown) is brought into contact with the outer peripheral surface of 7 so as to be freely slipped.

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.

本発明の帯電除去機能を有する光学式記録再生装置の説明図である。It is explanatory drawing of the optical recording / reproducing apparatus which has the charge removal function of this invention. 本発明の他の実施例説明図である。It is other Example explanatory drawing of this invention. 本発明の他の実施例説明図である。It is other Example explanatory drawing of this invention.

符号の説明Explanation of symbols

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 Media 2 Chucking Plate 3 Motor 4 Conductor 5 Electrode Pin 6 Turntable 7 Plate-like Good Conductor

Claims (3)

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帯電除去機能を有する光学式記録再生装置。   It has a charge removal function characterized by having a plate-like medium to be rotated and a grounding conductor arranged to face at least a part of at least one of the upper and lower surfaces of the plate-like medium via a minute gap. Optical recording / reproducing device. 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帯電除去機能を有する光学式記録再生装置。   An optical recording / reproducing apparatus having a charge removing function, comprising: a rotated plate-like medium; and a ground electrode pin disposed opposite to the outer peripheral surface of the plate-like medium via a minute gap. 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帯電除去機能を有する光学式記録再生装置。   An optical recording / reproducing apparatus having a charge removing function, comprising: a rotated plate-like medium; and a grounding good conductor that is brought into contact with one of the upper and lower surfaces of the plate-like medium.
JP2007045752A 2007-02-26 2007-02-26 Optical recording / reproducing apparatus having a charge removing function Active JP4763630B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013109790A (en) * 2011-11-17 2013-06-06 Alpine Electronics Inc Disk device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013109790A (en) * 2011-11-17 2013-06-06 Alpine Electronics Inc Disk device

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