JPH0630132B2 - Rotary magnetic head device for digital signal recording / reproducing apparatus having editing function - Google Patents
Rotary magnetic head device for digital signal recording / reproducing apparatus having editing functionInfo
- Publication number
- JPH0630132B2 JPH0630132B2 JP59223649A JP22364984A JPH0630132B2 JP H0630132 B2 JPH0630132 B2 JP H0630132B2 JP 59223649 A JP59223649 A JP 59223649A JP 22364984 A JP22364984 A JP 22364984A JP H0630132 B2 JPH0630132 B2 JP H0630132B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- recording
- rotary magnetic
- reproduction
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
- G11B5/531—Disposition of more than one recording or reproducing head on support rotating cyclically around an axis
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
- G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
Landscapes
- Management Or Editing Of Information On Record Carriers (AREA)
- Digital Magnetic Recording (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は編集機能を有するデジタル信号記録再生装置の
回転磁気ヘツド装置に関する。The present invention relates to a rotary magnetic head device of a digital signal recording / reproducing device having an editing function.
従来の編集機能を有するデジタルVTRの回転磁気ヘツド
装置は、記録用回転磁気ヘツド、通常再生用兼記録時モ
ニタ再生用回転磁気ヘツド及び記録時先行再生用回転磁
気ヘツドを有していた。後の２つの回転磁気ヘツドはダ
イナミツクトラツキングの可能な可動磁気ヘツドであ
る。The conventional rotary magnetic head device of a digital VTR having an editing function has a rotary magnetic head for recording, a rotary magnetic head for normal reproduction / recording monitor reproduction, and a rotary magnetic head for recording pre-reproduction. The latter two rotating magnetic heads are movable magnetic heads capable of dynamic tracking.
記録時、特に編集記録時には、記録ヘッドに対してヘッ
ド高さの異なる記録時先行再生用回転磁気ヘツドにて、
磁気テープ上に既に形成されている既記録傾斜トラツク
のデジタル映像信号をダイナミツクトラツキングを取り
ながら再生して先行読出しを行うと共に信号処理をした
後に、新たなデジタル映像信号を記録用回転磁気ヘツド
にて磁気テープ上に新たな傾斜トラツクを形成する如く
記録し、その後この新たな傾斜トラツクに記録されたデ
ジタル映像信号を通常再生用兼記録時モニタ再生用回転
磁気ヘツドにてモニタ再生するようにしていた。At the time of recording, especially at the time of edit recording, at the time of recording pre-reproduction rotary magnetic head with different head height with respect to the recording head,
A digital video signal of an already recorded tilted track that has already been formed on the magnetic tape is reproduced while performing dynamic tracking to perform pre-reading and signal processing, and then a new digital video signal is recorded on the rotary magnetic head for recording. So that a new tilted track is formed on the magnetic tape, and then the digital video signal recorded on this new tilted track is monitored and reproduced by the rotating magnetic head for normal reproduction and recording monitor reproduction. Was there.
尚、通常記録時は記録用回転磁気ヘツドにて磁気テープ
上にデジタル映像信号の記録を行ない、その記録された
デジタル映像信号をダイナミツクトラツキングを取りな
がら通常再生用兼記録時モニタ再生用回転磁気ヘツドに
てモニタ再生するようにしていた。又、通常再生時は、
磁気テープ上に記録されたデジタル映像信号をダイナミ
ツクトラツキングを取りながら通常再生用兼記録時モニ
タ再生用回転磁気ヘツドにて再生するようにしていた。During normal recording, a digital video signal is recorded on the magnetic tape by the recording rotary magnetic head, and the recorded digital video signal is rotated for normal playback and monitor playback while recording the dynamic tracking. It was designed to be played back on a monitor with a magnetic head. Also, during normal playback,
The digital video signal recorded on the magnetic tape is reproduced by the rotating magnetic head for normal reproduction and monitor reproduction during recording while taking dynamic tracking.
かかる従来の、編集機能を有するデジタルVRTの回転磁
気ヘツド装置では、通常再生用兼記録時モニタ再生用回
転磁気ヘツド及び記録時先行再生用回転磁気ヘツドが共
にダイナミツクトラツキングの可能な可動磁気ヘツドで
あるため、そのためのスペースが大となると共に、装置
の価格が上昇するという欠点があつた。In such a conventional rotary magnetic head device of a digital VRT having an editing function, a rotary magnetic head for normal reproduction / recording monitor reproduction and a rotary magnetic head for pre-recording reproduction are both movable magnetic heads capable of dynamic tracking. Therefore, there is a drawback that the space for that purpose becomes large and the price of the apparatus increases.
かかる点に鑑み本発明は、ダイナミツクトラツキングの
ための可動磁気ヘツドのためのスペースが少なくて済、
装置の価格を低減させることのできる、編集機能を有す
るデジタル信号記録再生装置の回転磁気ヘツド装置を提
案しようとするものである。In view of this point, the present invention requires less space for the movable magnetic head for dynamic tracking,
An object of the present invention is to propose a rotary magnetic head device of a digital signal recording / reproducing device having an editing function, which can reduce the cost of the device.
本発明による編集機能を有するデジタル信号記録再生装
置の回転磁気ヘツド装置は、記録用回転磁気ヘツド
ＨA1，ＨB2、記録時モニタ再生用回転磁気ヘツドＨA2，
ＨB2及び通常再生用兼記録時先行再生用回転磁気ヘツド
ＨA3，ＨB3を有し、通常再生用兼記録時先行再生用回転
磁気ヘツドＨA3，ＨB3のみがダイナミツクトラツキング
可能な可動磁気ヘツドにて構成されて成ることを特徴と
するものである。The rotary magnetic head device of the digital signal recording / reproducing apparatus having the editing function according to the present invention includes the rotary magnetic heads H A1 and H B2 for recording, the rotary magnetic head H A2 for monitoring during recording,
It has H B2 and a rotary magnetic head H A3 , H B3 for normal reproduction and pre-recording playback, and only the rotary magnetic head H A3 , H B3 for normal reproduction and pre-recording playback is movable for dynamic tracking. It is characterized by being composed of a magnetic head.
上述せる本発明によれば、夫々ダイナミツクトラツキン
グの必要な通常再生用回転磁気ヘツド及び記録時先行再
生用回転磁気ヘツドを兼用磁気ヘツドにて構成したか
ら、可動磁気ヘツドは１個で済むことになる。According to the present invention described above, since the rotary magnetic head for normal reproduction and the rotary magnetic head for pre-recording pre-reproduction which are both required for dynamic tracking are composed of the combined magnetic head, only one movable magnetic head is required. become.
以下に、第１図を参照して、本発明の一実施例を詳細に
説明する。第１図に於いて、DMはテープ案内ドラム装置
で、その回転ドラム又は回転デイスクに、夫々２チヤン
ネルの記録用回転磁気ヘツドＨA1，ＨB1、記録時モニタ
再生用回転磁気ヘツドＨA2，ＨB2及び通常再生用兼記録
時先行再生用回転磁気ヘツドＨA3，ＨB3が設けられてい
る。そして、このうち通常再生用兼記録時先行再生用回
転磁気ヘツドＨA3，ＨB3のみがダイナミツクトラツキン
グ可能な可動磁気ヘツドにて構成される。この回転じき
ヘツドＨA3，ＨB3は、図示を省略するも電気−機械変換
素子としての共通なバイモルフに取付けられ、記録用回
転磁気ヘツドＨA1，ＨB1に対し、再生処理に必要な時間
である例えば１フイールド期間（１フレーム期間も可）
先行して回転する。尚、図示を省略したが、記録用回転
磁気ヘツドＨA1，ＨB1に近接又は一体的に且つ先行して
２チャンネルの消去用回転磁気ヘツドが設けられてい
る。尚、ａは上述の回転磁気ヘツドの回転方向を示す。An embodiment of the present invention will be described in detail below with reference to FIG. In FIG. 1, DM is a tape guide drum device, and a rotary magnetic head H A1 , H B1 for recording and a rotary magnetic head H A2 , H for recording monitor reproduction of 2 channels respectively on the rotary drum or rotary disk. B2 and rotating magnetic heads H A3 and H B3 for normal reproduction and pre-reproduction during recording are provided. Of these, only the rotary magnetic heads H A3 and H B3 for normal reproduction and pre-reproduction at the time of recording are constituted by a movable magnetic head capable of dynamic tracking. The rotary heads H A3 and H B3 are attached to a common bimorph as an electro-mechanical conversion element (not shown), and the rotary heads H A1 and H B1 for recording have a time required for reproduction processing. For example, one field period (one frame period is also possible)
It rotates in advance. Although not shown, a two-channel erasing rotary magnetic head is provided adjacent to or integrally with the recording rotary magnetic heads H A1 and H B1 . Incidentally, a indicates the rotation direction of the above-mentioned rotary magnetic head.
TPは磁気テープで、テープ案内ドラムDMに例えば300°
の巻付け角を以て、斜めに巻付け案内される。Ｇ1，Ｇ2
はテープ巻付け角決定用のガイドポールである。TP is a magnetic tape, for example 300 ° on the tape guide drum DM
With a winding angle of, the winding guide is oblique. G 1 , G 2
Is a guide pole for determining the tape winding angle.
第２図に磁気テープTPのトラツクパターンを示し、夫々
映像トラツク部Ｖ及びその両端の音声トラツク部AV1，A
V2から成る対を成す傾斜トラツクが上述の２チヤンネル
の回転磁気ヘツドによつて同時に消去、記録及び再生走
査されるように、ＴA1，ＴB1；ＴA2，ＴB2；ＴA3，
ＴB3；……；ＴAN，ＴBN；……と配されている。尚、こ
れら傾斜トラツクに記録アジマスの違いは無い。そし
て、１フイールドのデジタル映像信号は、隣接する５本
の傾斜トラツク、即ち例えば破線で囲まれた傾斜トラツ
クＴA1，ＴB1；ＴA2，ＴB2の各１本と、傾斜トラツクＴ
A3，ＴB3の各前半部とに記録される。又、次の１フイー
ルドのデジタル映像信号は、傾斜トラツクＴA3，ＴB3の
各後半部と、傾斜トラツクＴA4，ＴB4，ＴB5の各１本と
に記録される。なお、ｂはテープ走行方面、ｃは回転磁
気ヘツドの走査方向を夫々示す。FIG. 2 shows the track patterns of the magnetic tape TP, and the video track section V and the audio track sections AV 1 and A at both ends thereof are shown.
T A1 , T B1 ; T A2 , T B2 ; T A3 , so that a pair of tilted tracks of V 2 can be simultaneously erased, recorded and reproduced scanned by the two-channel rotating magnetic head described above.
T B3 ; ......; T AN , T BN ; Incidentally, there is no difference in the recording azimuth between these inclined tracks. The digital video signal of one field has five adjacent tilt tracks, that is, one tilt track T A1 , T B1 ; T A2 and T B2 surrounded by broken lines, and one tilt track T.
It is recorded in the first half of A3 and TB3 . The next 1-field digital video signal is recorded in each of the latter half of the tilt tracks T A3 and T B3 and each of the tilt tracks T A4 , T B4 and T B5 . Incidentally, b indicates the tape running direction, and c indicates the scanning direction of the rotating magnetic head.
尚、１本の傾斜トラツクに、デジタル映像信号及びデジ
タル音声信号を混合して記録することもできる。Incidentally, it is also possible to mix and record a digital video signal and a digital audio signal in one tilt track.
しかして、記録時、特に編集記録時には、通常再生用兼
記録時先行再生用回転磁気ヘツドＨA3，ＨB3にて、磁気
テープTP上に既に形成されている２チヤンネルの既記録
傾斜トラツクのデジタル映像信号をダイナミツクトラツ
キングを取りながら再生して先行読出しを行うと共に信
号処理をした後に、新たなデジタル映像信号を記録用回
転磁気ヘツドＨA1，ＨB1にて磁気テープＴＰ上に新たな
２チャンネルの傾斜トラツクを形成する如く記録し、そ
の後この新たな２チヤンネルの傾斜トラツクに記録され
たデジタル映像信号を記録時モニタ再生用回転磁気ヘツ
ドＨA2，ＨB2にてモニタ再生するようにする。At the time of recording, especially at the time of editing / recording, the digital recording of the two-channel pre-recorded inclined track already formed on the magnetic tape TP by the rotating magnetic heads H A3 and H B3 for normal reproduction and pre-reproduction during recording. After the video signal is reproduced while performing dynamic tracking, pre-reading and signal processing are performed, a new digital video signal is newly recorded on the magnetic tape TP by the recording rotary magnetic heads H A1 and H B1 . Recording is performed so as to form an inclined track of the channel, and thereafter, the digital video signal recorded on the new inclined track of the two channels is monitor-reproduced by the rotating magnetic heads H A2 and H B2 for monitor reproduction during recording.
尚、通常記録時は記録用回転磁気ヘツドＨA1，ＨB1にて
磁気テープＴＰ上にデジタル映像信号の記録を行い、そ
の記録されたデジタル映像信号を記録時モニタ再生用回
転磁気ヘツドＨA2，ＨB2にてモニタ再生するようにす
る。又、通常再生時は、磁気テープTP上に記録されたデ
ジタル映像信号をダイナミツクトラツキングを取りなが
ら通常再生用兼記録時先行再生用回転磁気ヘツドＨA3，
ＨB3にて再生するようにする。Incidentally, during normal recording, a digital video signal is recorded on the magnetic tape TP by the recording rotary magnetic heads H A1 and H B1 , and the recorded digital video signal is recorded on the monitor rotating rotary magnetic head H A2 . The monitor is played back at H B2 . Also, during normal reproduction, the rotary magnetic head H A3 for normal reproduction and pre-recording during recording is used while taking dynamic tracking of the digital video signal recorded on the magnetic tape TP.
Play back at H B3 .
上述せる本発明によれば、記録用回転磁気ツド、記録時
モニタ再生用回転磁気ヘツド及び通常再生用兼記録時先
行再生用回転磁気ヘツドを有し、その通常再生用兼記録
時先行再生用回転磁気ヘツドのみがダイナミツクトラツ
キングの可能な可動磁気ヘツドにて構成されるので、モ
ニタ再生の可能なデジタル信号の記録及びダイナミツク
トラツキングの可能なデジタル信号の再生と共に、磁気
テープに既に記録されているデジタル信号のダイナミツ
クトラツキングをとった先行再生及びその後のモニタ再
生の可能なデジタル信号の記録による編集記録を行うこ
とができ、しかも、可動磁気ヘツドが単体で済むので、
可動磁気ヘツドのためのスペースが少なくて済み、且
つ、価格を低減させることのできる編集機能を有するデ
ジタル信号記録再生装置の回転磁気ヘツド装置を得るこ
とができる。According to the present invention described above, it has a rotary magnetic head for recording, a rotary magnetic head for monitor reproduction during recording, and a rotary magnetic head for normal reproduction / preceding reproduction during recording, and the rotation magnetic head for normal reproduction / preceding reproduction during recording. Since only the magnetic head is composed of a movable magnetic head capable of dynamic tracking, a digital signal which can be reproduced by a monitor and a digital signal which can be dynamically tracked are reproduced, and the magnetic tape is already recorded on the magnetic tape. Editing and recording can be performed by recording the digital signal that can be played back in advance and after that by monitoring the dynamic tracking of the existing digital signal, and moreover, since the movable magnetic head is a single unit,
It is possible to obtain a rotary magnetic head device of a digital signal recording / reproducing device which has a small space for a movable magnetic head and has an editing function capable of reducing the price.
【図面の簡単な説明】 第１図は本発明の一実施例を示す平面的配置図、第２図
は磁気テープのトラツクパターンを示すパターン図であ
る。 ＨA1，ＨB1は記録用回転磁気ヘツド、ＨA2，ＨB2は記録
時モニタ再生用回転磁気ヘツド、ＨA3，ＨB3は通常再生
用兼記録時先行再生用回転磁気ヘツド、DMはテープ案内
ドラム、TPは磁気テープである。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a pattern diagram showing a track pattern of a magnetic tape. H A1 and H B1 are rotary magnetic heads for recording, H A2 and H B2 are rotary magnetic heads for monitor reproduction during recording, H A3 and H B3 are rotary magnetic heads for normal reproduction and preceding reproduction during recording, and DM is tape guide. The drum and TP are magnetic tapes.
Claims (1)
用回転磁気ヘツド及び通常再生用兼記録時先行再生用回
転磁気ヘツドを有し、該通常再生用兼記録時先行再生用
回転磁気ヘツドのみがダイナミツクトラツキングの可能
な可動磁気ヘツドにて構成されて成ることを特徴とする
編集機能を有するデジタル信号記録再生装置の回転磁気
ヘッド装置。1. A rotary magnetic head for recording, a rotary magnetic head for recording / reproducing monitor, and a rotary magnetic head for normal reproducing / preceding reproducing at recording, and only the rotary magnetic head for normal reproducing / preceding reproducing at recording. Is a movable magnetic head capable of dynamic tracking, and is a rotary magnetic head device for a digital signal recording / reproducing apparatus having an editing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59223649A JPH0630132B2 (en) | 1984-10-24 | 1984-10-24 | Rotary magnetic head device for digital signal recording / reproducing apparatus having editing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59223649A JPH0630132B2 (en) | 1984-10-24 | 1984-10-24 | Rotary magnetic head device for digital signal recording / reproducing apparatus having editing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61104419A JPS61104419A (en) | 1986-05-22 |
| JPH0630132B2 true JPH0630132B2 (en) | 1994-04-20 |
Family
ID=16801489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59223649A Expired - Lifetime JPH0630132B2 (en) | 1984-10-24 | 1984-10-24 | Rotary magnetic head device for digital signal recording / reproducing apparatus having editing function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630132B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108551U (en) * | 1979-01-19 | 1980-07-30 | ||
| JPS5727420A (en) * | 1980-07-24 | 1982-02-13 | Nec Corp | Reproduction monitor device |
-
1984
- 1984-10-24 JP JP59223649A patent/JPH0630132B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61104419A (en) | 1986-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |