JPS61104419A - Rotary magnetic head device for digital video tape recorder having editing function - Google Patents
Rotary magnetic head device for digital video tape recorder having editing functionInfo
- Publication number
- JPS61104419A JPS61104419A JP22364984A JP22364984A JPS61104419A JP S61104419 A JPS61104419 A JP S61104419A JP 22364984 A JP22364984 A JP 22364984A JP 22364984 A JP22364984 A JP 22364984A JP S61104419 A JPS61104419 A JP S61104419A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- rotary magnetic
- digital video
- reproduction
- recorded
- 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
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
Abstract
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ＶＴＲの回転磁気ヘ
ッド装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotary magnetic head device for a digital VTR having an editing function.
従来の編集機能を有するデジタルＶＴＲの回転磁気ヘッ
ド装置は、記録用回転磁気ヘッド、通常再生用兼記録時
モニタ再生用回転磁気ヘッド及び記録時先行再生用回転
磁気ヘッドを有していた。後０２つの回転磁気ヘッドは
ダイナミックトラッキングの可能な可動磁気ヘッドであ
る。A conventional rotary magnetic head device for a digital VTR having an editing function has a rotary magnetic head for recording, a rotary magnetic head for normal reproduction and monitor reproduction during recording, and a rotary magnetic head for advance reproduction during recording. The last two rotating magnetic heads are movable magnetic heads capable of dynamic tracking.
記録時、特に編集記録時には、記録時先行再生用回転磁
気ヘッドにて、磁気テープ上に既に形成されている低記
録傾斜トラックのデジタル映像信号をダイナミックトラ
ッキングを取シながら再生して新たなデジタル映像信号
を記録すべき場所を探し、その場所が見付かったらその
後に続けて記録用回転磁気ヘッドにて磁気テープ上に新
たな傾斜トラックを形成する如くデジタル映像信号を記
録し、その後この新たな傾斜トラッ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
気ヘッドにてモニタ再生するようにしていた。During recording, especially when editing and recording, a rotating magnetic head for pre-recording playback reproduces digital video signals from low recording slope tracks already formed on the magnetic tape while performing dynamic tracking to generate new digital video. Search for a place to record a signal, and when that place is found, record the digital video signal on the magnetic tape by using a rotating magnetic head for recording, and then record the digital video signal so that a new inclined track is formed on the magnetic tape. The digital video signal recorded on the recording medium is monitored and reproduced using a rotating magnetic head for normal reproduction and monitor reproduction during recording.
尚、通常記録時は記録用回転磁気ヘッドにて磁気テープ
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ックトラッキングを取シな
から通常再生用兼記録時モニタ再生用回転磁気ヘッドに
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
ックトラッ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ッドにて再生するようにしていた。In addition, during normal recording, a digital video signal is recorded on the magnetic tape using a rotating recording magnetic head, and the recorded digital video signal is not dynamically tracked. It was designed to be played back on a monitor using a magnetic head. Also, during normal playback,
A digital video signal recorded on a magnetic tape is dynamically tracked and reproduced by a rotating magnetic head for normal reproduction and monitor reproduction during recording.
かかる従来の、編集機能を有するデジタルＶＴＲの回転
磁気ヘッド装置では、通常再生用兼記録時モニタ再生用
回転磁気ヘッド及び記録時先行再生用回転磁気ヘッドが
共にダイナミックトラッキングの可能な可動磁気ヘッド
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った。In such a conventional rotary magnetic head device for a digital VTR having an editing function, both the rotary magnetic head for normal reproduction and monitor reproduction during recording and the rotary magnetic head for advance reproduction during recording are movable magnetic heads capable of dynamic tracking. Therefore, there are disadvantages in that the space required for this purpose becomes large and the price of the device increases.
かかる点に鑑み本発明は、ダイナミックトラッキングの
ための可動磁気ヘッドのためのスペースが少なくて済み
、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ＶＴＲの回転磁気ヘッド装置を提案しよう
とするものである。In view of this, the present invention seeks to propose a rotary magnetic head device for a digital VTR having an editing function, which requires less space for a movable magnetic head for dynamic tracking and can reduce the cost of the device. It is something to do.
本発明による編集機能を有するデジタルＶＴＲの回転磁
気ヘッド装置は、記録用回転磁気ヘッドＨＡＩ Ｉ Ｈ
ＢＩ、記録時モニタ再生用回転磁気ヘソ、ドＨＡ２ ＋
ＨＢ２及び通常再生用兼記録時先行再生用回転磁気ヘ
ッドＨＡ３ ｔ ＨＢ３を有し、通常再生用兼記録時先
行再生用回転磁気ヘッドＨＡ３ 、 ＨＢ３のみがダイ
ナミックトラッキング可能な可動磁気ヘッドにて構成さ
れて成ることを特徴とするものである。A rotary magnetic head device for a digital VTR having an editing function according to the present invention includes a rotary magnetic head for recording HAI IH.
BI, rotating magnetic belly button for monitor playback during recording, de HA2 +
HB2 and a rotary magnetic head HA3 for normal playback and advance playback during recording; only the rotary magnetic heads HA3 and HB3 for normal playback and advance playback during recording are configured with movable magnetic heads capable of dynamic tracking. It is characterized by:
上述せる本発明によれば、夫々ダイナミックトラッキン
グの必要な通常再生用回転磁気ヘッド及び記録時先行再
生用回転磁気ヘッドを兼用磁気ヘッドにて構成したから
、可動磁気ヘッドは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, which requires dynamic tracking, and the rotary magnetic head for advance reproduction during recording are configured with a dual-purpose magnetic head, only one movable magnetic head is required. .
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ィスクＫ、夫々２チヤ
ンネルの記録用回転磁気ヘッドＨＡＩ ａ ＨＢＩ、記
録時モニタ再生用回転磁気ヘッドＨＡ２ ｅ Ｈｇ２及
び通常再生用兼記録時先行再生用回転磁気ヘッド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ッドＨＡ３ ＋
ＨＢ３のみがダイナミックトラッキング可能な可動磁気
ヘッドにて構成される。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, which includes a rotating drum or a rotating disk K, two-channel recording rotating magnetic head HAI a HBI, a rotating magnetic head HA2 e Hg2 for monitoring and reproducing during recording, and normal reproducing. Rotating magnetic head HA3 for dual use and advance playback during recording
+ HB3 is provided. Among these, a rotating magnetic head HA3 + for normal reproduction and advance reproduction during recording.
Only HB3 is composed of a movable magnetic head capable of dynamic tracking.
この回転磁気ヘッドＨＡ３ ｒ ）（Ｂａ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、記録用回転磁気ヘッドＨＡｔ ａ ＨＢ
ｌに対し、再生処理に必要な時間である例えば１フイ一
ルド期間（１フレ一ム期間も可）先行して回転する。尚
、図示を省略したが、記録用回転磁気ヘッドＨＡｌ ＋
ＨＢＩ Ｋ近接又は一体的に且つ先行して２チヤンネ
ルの消去用回転磁気ヘッドが設けられている。尚、ａは
上述の回転磁気ヘッドの回転方向を示す。Although not shown, this rotating magnetic head HA3 r ) (Ba is attached to a common bimorph as an electro-mechanical conversion element, and the rotating magnetic head HAt a HB for recording
1, the rotation is performed in advance of, for example, one field period (one frame period is also possible), which is the time required for reproduction processing. Although not shown in the drawings, the recording rotary magnetic head HAl +
A two-channel erasing rotary magnetic head is provided adjacent to or integrally with and in front of the HBI K. Note that a indicates the rotation direction of the above-mentioned rotating magnetic head.
ＴＰは磁気テープで、テープ案内ドラムＤＭに例えば３
００°の巻付は角を以て、斜めに巻付は案内される。Ｇ
ｌ ＊ Ｇ２はテープ巻付は角決定用のガイドボールで
ある。TP is a magnetic tape, for example 3 on the tape guide drum DM.
00° windings are guided at corners, and diagonal windings are guided. G
1*G2 is a guide ball for determining the angle where the tape is wound.
第２図に磁気テープＴＰのトラックパターンを示し、夫
々映像トラック部Ｖ及びその両端の音声トラック部ＡＶ
１． ＡＶ２から成る対を成す傾斜トラックが上述の２
チヤンネルの回転磁気ヘッドによって同時に消去、記録
及び再生走査されるようＫ、１人１ ＋ Ｔ３１
＊ ＴＡ２ ｔ ＴＰ２ ： ＴＡ３
＋ ＴＰ３ ： ””” ＊ ＴＡＮ ｔＴ
ＢＮ ：・・・・・・と配されている。尚、これら傾斜
トラックに記録アジマスの違いは無い。そしで、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
ック、即ち例えば破線で囲まれた傾斜トラックＴＡｌ
＃ ＴＢｌ ｌ ＴＡ２１ ＴＰ２の各１本と、傾斜ト
ラックＴＡ３ ＋ ＴＰ３の各前半部とに記録される。FIG. 2 shows the track pattern of the magnetic tape TP, with a video track section V and an audio track section AV at both ends thereof.
1. A pair of inclined tracks consisting of AV2
K, one person 1 + T31 to be simultaneously erased, recorded and read scanned by the rotating magnetic head of the channel
* TA2 t TP2: TA3
+ TP3: “”” * TAN tT
BN: It is arranged as... Note that there is no difference in recording azimuth between these inclined tracks. Then, one field of digital video signal is transmitted to five adjacent tilted tracks, that is, for example, the tilted track TAL surrounded by a broken line.
#TBl l TA21 TP2 is recorded on each one, and each first half of the inclined track TA3 + TP3 is recorded.
又、次の１フイールドのデジタル映像信号は、傾斜トラ
ックＴＡ３ 、 ＴＰ３の各後半部と、傾斜トラックＴ
Ａ４ ｅ ＴＰ４ ｐ ’ｒ人、、 ａ ＴＰ５の各１
本とに記録される。Further, the digital video signal of the next field is transmitted to the latter half of each of the inclined tracks TA3 and TP3, and to the inclined track T.
A4 e TP4 p 'r person,, a TP5 each 1
recorded in books.
尚、ｂはテープ走行方向、Ｃは回転磁気ヘッドの走査方
向を夫々示す。Note that b indicates the tape running direction, and C indicates the scanning direction of the rotating magnetic head.
尚、１本の傾斜トラックに、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。Note that it is also possible to mix and record a digital video signal and a digital audio signal on one inclined 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ッドＨＡ３ ＋ＨＢ３ Ｋ
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ックのデジタル映像信号をダイナミ
ックトラッキングを取シながら再生して新たなデジタル
映像信号を記録すべき場所を探し、その場所が見付かっ
たらその後に続けて記録用回転磁気ヘッドＨＡＩ ｒ
ＨＢＩ Ｋて磁気テープＴＰ上に新たな２チヤンネルの
傾斜トラックを形成する如くデジタル映像信号を記録し
、その後この新たな２チヤンネルの傾斜トラックに記録
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
ヘッドＨＡ２ 、 ＨＢ２にてモニタ再生するようにす
る。Therefore, during recording, especially during editing and recording, the rotating magnetic head HA3 + HB3 K is used for normal playback and for advance playback during recording.
Then, the digital video signals of the two channels of recorded tilted tracks that have already been formed on the magnetic tape TP are played back while dynamic tracking is performed to search for a location where a new digital video signal should be recorded, and when that location is found. After that, the recording rotary magnetic head HAI r
A digital video signal is recorded on the magnetic tape TP by HBI K so as to form a new two-channel inclined track, and then the digital video signal recorded on the new two-channel inclined track is transferred to a rotating magnetic field for monitor playback at the time of recording. Monitor playback is performed using heads HA2 and HB2.
尚、通常記録時は記録用回転磁気ヘッドＨＡＩ ｐ）（
Ｉ３ｉにて磁気テープＴＰ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
ックトラッキングを取υながら記録時モニタ再生用回転
磁気ヘッド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ックトラッキングを取
シながら通常再生用兼記録時先行再生用回転磁気ヘッド
ＨＡ３ ＃ ＨＢ３にて再生するようにする。Note that during normal recording, the rotating magnetic recording head HAI p) (
A digital video signal is recorded on the magnetic tape TP by I3i, and the recorded digital video signal is monitored and reproduced by the rotating magnetic heads HA2+HB2 for monitor reproduction during recording while dynamic tracking is performed. Further, during normal playback, the digital video signal recorded on the magnetic tape TP is played back by the rotary magnetic head HA3 #HB3 for normal playback and advance playback during recording while dynamic tracking is performed.
・〔発明の効果〕
上述せる本発明によれば、ダイナミックトラッキングの
ための可動磁気ヘッドが単体で済むので、可動磁気ヘッ
ドのためのスペースが少なくて済み、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ＶＴＲ
の回転磁気ヘッド装置を得ることができる。- [Effects of the Invention] According to the present invention described above, since only a single movable magnetic head is required for dynamic tracking, less space is required for the movable magnetic head, and the cost of the device can be reduced. Digital VTR with editing function
It is possible to obtain a rotating magnetic head device of.
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ックパターンを示すパターン図であ
る。
ＨＡＩ・ＨＢｌは記録量回転磁気ヘット”−ＨＡ２ ｒ
ＨＢ２は記録時モニタ再生用回転磁気ヘッド、ＨＡ３
＊ ＨＢ３は通常再生用兼記録時先行再生用回転磁気
ヘッド、ＤＭはテープ案内ドラム、ＴＰは磁気テープで
ある。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. HAI/HBl is a recording amount rotating magnetic head "-HA2 r
HB2 is a rotating magnetic head for monitor playback during recording, HA3
* HB3 is a rotating magnetic head for normal reproduction and advance reproduction during recording, DM is a tape guide drum, and TP is a magnetic tape.
Claims (1)
ッド及び通常再生用兼記録時先行再生用回転磁気ヘッド
を有し、該通常再生用兼記録時先行再生用回転磁気ヘッ
ドのみがダイナミツクトラツキング可能な可動磁気ヘッ
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ＶＴＲの回転磁気ヘッド装置。It has a rotary magnetic head for recording, a rotary magnetic head for monitoring and reproducing during recording, and a rotary magnetic head for normal reproduction and advance reproduction during recording, and only the rotary magnetic head for normal reproduction and advance reproduction during recording performs dynamic tracking. 1. A rotary magnetic head device for a digital VTR having an editing function, characterized in that it is comprised of a movable magnetic head.
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 true JPS61104419A (en) | 1986-05-22 |
| JPH0630132B2 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) |
Citations (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
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0630132B2 (en) | 1994-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |