JPH0554346A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPH0554346A
JPH0554346A JP21223291A JP21223291A JPH0554346A JP H0554346 A JPH0554346 A JP H0554346A JP 21223291 A JP21223291 A JP 21223291A JP 21223291 A JP21223291 A JP 21223291A JP H0554346 A JPH0554346 A JP H0554346A
Authority
JP
Japan
Prior art keywords
head
clogging
cleaning
magnetic recording
rotary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21223291A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Kawachi
信義 河内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP21223291A priority Critical patent/JPH0554346A/en
Publication of JPH0554346A publication Critical patent/JPH0554346A/en
Pending legal-status Critical Current

Links

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  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To remove the clogging of a head by detecting the clogging of a rotary head (like a video head) or a fixed head (audio head, control signal head, etc.,) and automatically cleaning the head. CONSTITUTION:The output of the rotary head or the fixed head 1 is taken out and amplified by an amplifier 2. A detection circuit 3 decides whether or not the amplified level is normal, sending a command to a cleaning control circuit 4 in the case this level is abnormal, that is, when a head clogging occurs. Receiving a [clogging] command from the detection circuit 3, the cleaning control circuit 4 automatically performs head cleaning 5. Thus, the clogging can be removed and a serious recording error can be prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は回転あるいは固定ヘッド
の目づまりを検出し、自動的に回転あるいは固定ヘッド
をクリーニングする機能を備えた磁気記録再生装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus having a function of detecting clogging of a rotary or fixed head and automatically cleaning the rotary or fixed head.

【０００２】[0002]

【従来の技術】磁気記録再生装置においては、重大な場
面の記録を失敗することのないように細心の注意が必要
である。2. Description of the Related Art In a magnetic recording / reproducing apparatus, great care must be taken not to fail to record a serious scene.

【０００３】従来、記録用磁気ヘッドの目づまりを防止
する装置に関するものはあっても、目づまり検出機能を
備えた磁気記録再生装置はまだ市販されてないのが現状
である。Conventionally, although there is a device for preventing clogging of a recording magnetic head, a magnetic recording / reproducing device having a clogging detection function is not yet on the market.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら上記の従
来の磁気記録再生装置では、目づまりを検知するため
に、クリーニング機能を備えていたが、これは単なる防
衛手段でしかない。また、同時再生機能を備えた装置で
は、単なる記録の監視を行なうだけの手段でしかなかっ
た。However, the above-mentioned conventional magnetic recording / reproducing apparatus has a cleaning function for detecting clogging, but this is merely a defensive measure. Further, in the device having the simultaneous reproduction function, it is only a means of simply monitoring the recording.

【０００５】本発明は、上記従来の問題点を解決するも
ので、回転ヘッドあるいは固定ヘッドの目づまりを検知
して、自動的にクリーニングすることにより、目づまり
を除去するようにした磁気記録再生装置を提供すること
を目的とする。The present invention solves the above-mentioned conventional problems, and provides a magnetic recording / reproducing apparatus which detects clogging of a rotary head or a fixed head and automatically cleans the clogging to remove the clogging. The purpose is to provide.

【０００６】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明の磁気記録再生装置は、回転ヘッドまたは固定
ヘッドから出力する信号レベルを検知する信号レベル検
知手段と、回転ヘッドあるいは固定ヘッドをクリーニン
グするヘッドクリーニング手段と、回転ヘッドあるいは
固定ヘッドのクリーニング機能を制御するヘッドクリー
ニング制御手段とを備え、回転ヘッドあるいは固定ヘッ
ドの目づまりを検知し、前記ヘッドを自動的にクリーニ
ングすることによって、目づまりを除去するような構成
を有している。To achieve the above object, a magnetic recording / reproducing apparatus of the present invention comprises a signal level detecting means for detecting a signal level output from a rotary head or a fixed head, and a rotary head or a fixed head. A head cleaning unit for cleaning and a head cleaning control unit for controlling the cleaning function of the rotary head or the fixed head are provided, and the clogging of the rotary head or the fixed head is detected, and the head is automatically cleaned to eliminate the clogging. It has a structure to be removed.

【０００７】[0007]

【作用】上記の構成により、本発明の磁気記録再生装置
は、回転ヘッドあるいは固定ヘッドの出力のレベルを監
視し、出力レベルが一定のレベル以下になったとき、ヘ
ッドクリーニング制御回路が動作し、ヘッドを自動的に
クリーニングすることができる。With the above construction, the magnetic recording / reproducing apparatus of the present invention monitors the output level of the rotary head or the fixed head, and when the output level becomes a certain level or less, the head cleaning control circuit operates, The head can be cleaned automatically.

【０００８】[0008]

【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【０００９】図１に示すように、回転ヘッド（ビデオヘ
ッドなど）あるいは固定ヘッド（オーディオヘッド，制
御信号ヘッドなど）１からの出力は増幅器２で増幅さ
れ、目づまり検出回路３において、増幅回路２からの出
力を検出し正常出力よりあるレベル下がったとき、つま
り目づまりが起こったときに指令を出すようになされて
いる。目づまり指令がでると、クリーニング制御回路４
からヘッドクリーニング機能を動作させるための制御信
号が出力し、ヘッドクリーニング機能５が動作する。As shown in FIG. 1, an output from a rotary head (video head or the like) or a fixed head (audio head, control signal head or the like) 1 is amplified by an amplifier 2, and in a clogging detection circuit 3, an amplifier circuit 2 is provided. It detects the output from and outputs a command when the output falls below a certain level from the normal output, that is, when clogging occurs. When a clogging command is issued, the cleaning control circuit 4
Outputs a control signal for operating the head cleaning function, and the head cleaning function 5 operates.

【００１０】以上のように構成された磁気記録再生装置
について、図１を用いてその動作を説明する。The operation of the magnetic recording / reproducing apparatus configured as described above will be described with reference to FIG.

【００１１】同時再生機能を有する磁気記録再生装置に
おいては、記録中に同時再生ビデオヘッド１からビデオ
信号出力を取りだし、増幅器２で増幅する。増幅された
出力信号レベルが正常レベルかどうかを目づまり検出回
路３で判定する。もしこのレベルが正常レベルでないと
き、つまり目づまりが起こったとき、クリーニング制御
回路４に指令を送る。目づまり検出回路３から目づまり
指令をもらうとクリーニング制御回路４によってビデオ
ヘッドのクリーニング５を行う。In the magnetic recording / reproducing apparatus having the simultaneous reproducing function, the video signal output is taken out from the simultaneous reproducing video head 1 during recording and amplified by the amplifier 2. The clogging detection circuit 3 determines whether the amplified output signal level is a normal level. If this level is not normal, that is, if clogging occurs, a command is sent to the cleaning control circuit 4. When a clogging command is received from the clogging detection circuit 3, the cleaning control circuit 4 performs the cleaning 5 of the video head.

【００１２】以上のように本発明の一実施例の磁気記録
再生装置によれば、ビデオヘッドの目づまりを記録中に
検知し、ビデオヘッドを自動的にクリーニングすること
によって、目づまりを除去することができ、重大な場面
の収録の失敗を防ぐことができる。As described above, according to the magnetic recording / reproducing apparatus of the embodiment of the present invention, the clogging of the video head is detected during recording, and the clogging can be removed by automatically cleaning the video head. It is possible to prevent the failure of recording a serious scene.

【００１３】[0013]

【発明の効果】以上のように本発明は、回路ヘッドある
いは固定ヘッドの目づまりを検知し、前記ヘッドを自動
的にクリーニングすることによって、目づまりを除去す
ることができるようにした優れた磁気記録再生装置を実
現できるものである。As described above, according to the present invention, it is possible to detect clogging of a circuit head or a fixed head, and automatically clean the clogging to remove the clogging. The device can be realized.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例の磁気記録再生装置のブロッ
ク図FIG. 1 is a block diagram of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１ 回転ヘッドあるいは固定ヘッド ２ 増幅器 ３ 目づまり検出回路 ４ クリーニング制御回路 ５ ヘッドクリーニング 1 rotating head or fixed head 2 amplifier 3 clogging detection circuit 4 cleaning control circuit 5 head cleaning

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】回転ヘッドから出力する信号レベルを検知
する信号レベル検知手段と、前記回転ヘッドをクリーニ
ングする回転ヘッドクリーニング手段と、前記回転ヘッ
ドの前記クリーニング機能を制御する回転ヘッドクリー
ニング制御手段とを有する磁気記録再生装置。1. A signal level detecting means for detecting a signal level output from a rotary head, a rotary head cleaning means for cleaning the rotary head, and a rotary head cleaning control means for controlling the cleaning function of the rotary head. Magnetic recording / reproducing apparatus having. 【請求項２】固定ヘッドから出力する信号レベルを検知
する信号レベル検知手段と、前記固定ヘッドをクリーニ
ングする固定ヘッドクリーニング手段と、前記固定ヘッ
ドの前記クリーニング機能を制御する固定ヘッドクリー
ニング制御手段とを有する磁気記録再生装置。2. A signal level detecting means for detecting a signal level output from a fixed head, a fixed head cleaning means for cleaning the fixed head, and a fixed head cleaning control means for controlling the cleaning function of the fixed head. Magnetic recording / reproducing apparatus having.
JP21223291A 1991-08-23 1991-08-23 Magnetic recording and reproducing device Pending JPH0554346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21223291A JPH0554346A (en) 1991-08-23 1991-08-23 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21223291A JPH0554346A (en) 1991-08-23 1991-08-23 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPH0554346A true JPH0554346A (en) 1993-03-05

Family

ID=16619152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21223291A Pending JPH0554346A (en) 1991-08-23 1991-08-23 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPH0554346A (en)

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