JPH0332768U - - Google Patents

Info

Publication number
JPH0332768U
JPH0332768U JP9074589U JP9074589U JPH0332768U JP H0332768 U JPH0332768 U JP H0332768U JP 9074589 U JP9074589 U JP 9074589U JP 9074589 U JP9074589 U JP 9074589U JP H0332768 U JPH0332768 U JP H0332768U
Authority
JP
Japan
Prior art keywords
recording
magnetic
data
reproducing
discrimination
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.)
Granted
Application number
JP9074589U
Other languages
Japanese (ja)
Other versions
JP2549211Y2 (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 JP1989090745U priority Critical patent/JP2549211Y2/en
Publication of JPH0332768U publication Critical patent/JPH0332768U/ja
Application granted granted Critical
Publication of JP2549211Y2 publication Critical patent/JP2549211Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Description

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

第１図は本考案の一実施例に係る磁気記録再生
装置における記録エラー検出装置の概略構成を示
すブロツク図、第２図はオーバーライトが正常に
行われた場合の本実施例動作を説明するための図
で、第２図ａは前回の記録動作により形成された
記録トラツク、第２図ｂは今回の記録動作により
形成された記録トラツクを示す図、第３図はヘツ
ドグロツグ等によりオーバーライトが行えない場
合の本実施例動作を説明するための図で、第３図
ａは前回の記録動作により形成された記録トラツ
ク、第３図ｂは今回の記録動作により形成された
記録トラツクを示す図、第４図は従来のＤＡＴに
おける記録・再生ならびにリードアフタライトを
行う際の信号の処理を説明するための図である。 １……電磁記録再生系、２……記録用信号処理
回路、４……判別データ比較回路。 FIG. 1 is a block diagram showing a schematic configuration of a recording error detection device in a magnetic recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 2 explains the operation of this embodiment when overwriting is normally performed. Figure 2a shows the recording track formed by the previous recording operation, Figure 2b shows the recording track formed by the current recording operation, and Figure 3 shows the recording track formed by the head log etc. This is a diagram for explaining the operation of this embodiment in the case where the recording operation cannot be performed. FIG. 3a shows the recording track formed by the previous recording operation, and FIG. 3b shows the recording track formed by the current recording operation. , FIG. 4 is a diagram for explaining signal processing when performing recording/reproducing and read-after-write in a conventional DAT. 1... Electromagnetic recording and reproducing system, 2... Recording signal processing circuit, 4... Discrimination data comparison circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 記録再生用磁気ヘツドおよびリードアフタライ
ト用の再生専用磁気ヘツドを含む電磁記録再生系
と、前記記録再生用磁気ヘツドが記録のために磁
気テープを走査する毎に内容が変わるサブコード
データとしての判別データを前記磁気記録再生系
に出力する記録用信号処理手段と、この記録用信
号処理手段および前記磁気記録再生系の出力を受
けて前記記録用データとしての判別データと前記
再生専用磁気ヘツドにより再生された再生データ
としての判別データとを比較して両者が不一致の
とき記録エラー検出信号を出力する判別データ比
較手段とを備えたことを特徴とする磁気記録再生
装置における記録エラー検出装置。 An electromagnetic recording/reproducing system including a magnetic recording/reproducing head and a read-only magnetic head for read-after-write, and discrimination as subcode data whose contents change each time the magnetic recording/reproducing head scans a magnetic tape for recording. A recording signal processing means for outputting data to the magnetic recording/reproducing system; and a recording signal processing means for receiving the output of the recording signal processing means and the magnetic recording/reproducing system, and reproducing the discrimination data as the recording data and the reproduction-only magnetic head. What is claimed is: 1. A recording error detection device for a magnetic recording/reproducing apparatus, comprising: discrimination data comparing means for comparing discrimination data as reproduced data and outputting a recording error detection signal when the two do not match.
JP1989090745U 1989-07-31 1989-07-31 Recording error detecting device in magnetic recording / reproducing device Expired - Lifetime JP2549211Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989090745U JP2549211Y2 (en) 1989-07-31 1989-07-31 Recording error detecting device in magnetic recording / reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989090745U JP2549211Y2 (en) 1989-07-31 1989-07-31 Recording error detecting device in magnetic recording / reproducing device

Publications (2)

Publication Number Publication Date
JPH0332768U true JPH0332768U (en) 1991-03-29
JP2549211Y2 JP2549211Y2 (en) 1997-09-30

Family

ID=31640258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989090745U Expired - Lifetime JP2549211Y2 (en) 1989-07-31 1989-07-31 Recording error detecting device in magnetic recording / reproducing device

Country Status (1)

Country Link
JP (1) JP2549211Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008102296A (en) * 2006-10-18 2008-05-01 Nitto Denko Corp Long-length optical waveguide and its manufacturing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145705A (en) * 1984-12-20 1986-07-03 Matsushita Electric Ind Co Ltd Pcm recorder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61145705A (en) * 1984-12-20 1986-07-03 Matsushita Electric Ind Co Ltd Pcm recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008102296A (en) * 2006-10-18 2008-05-01 Nitto Denko Corp Long-length optical waveguide and its manufacturing method
JP4625797B2 (en) * 2006-10-18 2011-02-02 日東電工株式会社 Long optical waveguide and manufacturing method thereof

Also Published As

Publication number Publication date
JP2549211Y2 (en) 1997-09-30

Similar Documents

Publication Publication Date Title
JPS62138327U (en)
JPH0332768U (en)
JPH046829U (en)
JPH0216436U (en)
JPS60123730U (en) magnetic recording and reproducing device
JPS587212U (en) tape recorder
JPH0250834U (en)
JPS63176985U (en)
JPS62195293U (en)
JPS6179839U (en)
JPH0246483U (en)
JPS60194757U (en) magnetic recording and reproducing device
JPH03124336U (en)
JPS62202632U (en)
JPS60175334U (en) tape recorder
JPS62120486U (en)
JPH0175387U (en)
JPS6355288U (en)
JPS60120528U (en) cassette tape recorder
JPS6056920U (en) cassette tape recorder
JPS60173117U (en) magnetic recording and reproducing device
JPS5814297U (en) Video tape recorder with monitor function
JPH0435214U (en)
JPS6324716U (en)
JPH0454036U (en)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term