JPH03121506U - - Google Patents

Info

Publication number
JPH03121506U
JPH03121506U JP2982290U JP2982290U JPH03121506U JP H03121506 U JPH03121506 U JP H03121506U JP 2982290 U JP2982290 U JP 2982290U JP 2982290 U JP2982290 U JP 2982290U JP H03121506 U JPH03121506 U JP H03121506U
Authority
JP
Japan
Prior art keywords
erasing head
recording
control device
unrecorded tape
bias
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
JP2982290U
Other languages
English (en)
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 filed Critical
Priority to JP2982290U priority Critical patent/JPH03121506U/ja
Publication of JPH03121506U publication Critical patent/JPH03121506U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図はこの考案をカセツトテープレコーダに
適用した場合の消去ヘツド用バイアス制御装置の
一例を示す接続図、第2図はその動作説明に供す
るバイアス解除用制御信号の図、第3図および第
4図はノイズ特性の一例を示す特性曲線図である
。 T……生テープ、10……消去ヘツド用バイア
ス制御装置、12……消去ヘツド、13……録音
ヘツド、14……バイアス発信器、16……切換
スイツチ、20……制御手段、22……マイコン
、30……録音スイツチ、34……バイアス解除
用スイツチ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 未録音テープ使用時、消去ヘツドをこの未録音
    テープから離間させた状態で録音するか、若しく
    は消去ヘツドに供給される高周波バイアス電流を
    流さない状態で録音するようにしたことを特徴と
    する消去ヘツド用バイアス制御装置。
JP2982290U 1990-03-24 1990-03-24 Pending JPH03121506U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2982290U JPH03121506U (ja) 1990-03-24 1990-03-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2982290U JPH03121506U (ja) 1990-03-24 1990-03-24

Publications (1)

Publication Number Publication Date
JPH03121506U true JPH03121506U (ja) 1991-12-12

Family

ID=31532569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2982290U Pending JPH03121506U (ja) 1990-03-24 1990-03-24

Country Status (1)

Country Link
JP (1) JPH03121506U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54125737A (en) * 1978-03-15 1979-09-29 Teijin Ltd Yarn winder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54125737A (en) * 1978-03-15 1979-09-29 Teijin Ltd Yarn winder

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