JPS59123377A - Magnetic picture recording and reproducing device - Google Patents

Magnetic picture recording and reproducing device

Info

Publication number
JPS59123377A
JPS59123377A JP57229816A JP22981682A JPS59123377A JP S59123377 A JPS59123377 A JP S59123377A JP 57229816 A JP57229816 A JP 57229816A JP 22981682 A JP22981682 A JP 22981682A JP S59123377 A JPS59123377 A JP S59123377A
Authority
JP
Japan
Prior art keywords
recording
head
tape
video head
track
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
JP57229816A
Other languages
Japanese (ja)
Other versions
JPH0461552B2 (en
Inventor
Yasuo Mihashi
三橋　康夫
Yoshihisa Nishitani
西谷　芳久
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57229816A priority Critical patent/JPS59123377A/en
Publication of JPS59123377A publication Critical patent/JPS59123377A/en
Publication of JPH0461552B2 publication Critical patent/JPH0461552B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/1808—Driving of both record carrier and head
    • 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
    • G11B5/52—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

Abstract

PURPOSE:To attain recording and reproduction with a tape in halted state by providing the 3rd head while being shifted by one track in the direction of a center shaft of a rotary drum to the 2nd head in addition to the 1st and the 2nd video heads for normal reproduction placed symmetrically on the drum. CONSTITUTION:A magnetic tape 5 is brought into the loading state and the running of it is brought into the halt state at recording. The recording is performed by the 1st head 2 and the 3rd head 4 on the rotary drum 1. The traces are shown by 8, 9 in figure. Thus, even if the tape 5 is halted, the recording the same as running state of tape is attained. The tape 5 is brought into the halt state at still picture reproduction the same as that at recording, and the track 8 recorded by the 1st head 2 is reproduced by the 1st head 2 and the track 9 recorded by the 3rd head 4 is reproduced by the head 4.

Description

【発明の詳細な説明】 この発明は、磁気録画再生装置（以下Ｖ　ＴＲと称す）
に関し、特に、間欠記録をすることにより長時間記録を
可能とした長時間Ｖ　ｒＲに関するもＱ〜である。[Detailed Description of the Invention] This invention relates to a magnetic recording and reproducing device (hereinafter referred to as VTR).
Regarding long-term VrR, in particular, long-term recording is possible through intermittent recording.

一般に、銀行、駐車場等の監視用ＶＴＲでは、長時間記
録を可能とするために１間欠記録が行なわれており、こ
のような長時間ＶＴＲにおける記録時の磁気テープ走行
動作は次の様に行なわれている。Generally, VTRs for surveillance in banks, parking lots, etc., perform intermittent recording to enable long-term recording.The magnetic tape running operation during recording in such long-duration VTRs is as follows. It is being done.

即ち、先ず、磁気テープをローディグ状態にしておき、
テープ送りは行なわれず、ドラムは定常回転を行なって
いる。そして、一定期間毎に間欠的にテープ送りを行な
い、それと同期し７てヘッドに記録信号を送り、そのテ
ープ送り動作中に１フレ一ム分の記録を行なっ。そして
その後、テープ送りを停止させる。That is, first, put the magnetic tape in the loading state,
The tape is not fed and the drum is in steady rotation. Then, the tape is intermittently fed at regular intervals, and in synchronization with this, a recording signal is sent to the head, and one frame's worth of recording is performed during the tape feeding operation. After that, tape feeding is stopped.

このような従来の装置においては、テープが停止状卯か
ら必要走行速度に達し、そして記録完了後再度停止状態
に戻る過程において、そのテープ速度の制ｉｉ′印が弁
材に困難であるという欠点があった。In such conventional devices, a disadvantage is that it is difficult to control the tape speed during the process in which the tape reaches the required running speed from the stop state and then returns to the stop state again after recording is completed. was there.

この発明は、以上のような従来のものの欠点を除去する
ためになされたもので１回転ドラム上の対称位置に取付
けられた１対の第１．第２のビデオヘッドにより通常再
生を行ない、上記第２のビデオヘッドに対し上記回転ド
ラムの中心ｎ１ｌｌ＋方向に１トラック幅ずらして取付
けられた第３のビデオヘッドと上記第１のビデオヘッド
とにより磁気テープ停止状態で記録及び静止画像再生を
行なうようにすることにより、磁気テープ駆動系に特別
な冒い精度を必要とぜず、しかも上記ビデオヘッドに所
定のアジマス角を設けることｉこより既存のフォーマッ
ト（例えばＶＨ５規格）と互換性のある記録、イｑ生を
行なわせることができる５ｆｇ気録画再生装置を提供す
ることを目的としている。This invention was made in order to eliminate the above-mentioned drawbacks of the conventional drum. A second video head performs normal playback, and a third video head, which is attached one track width apart from the second video head in the direction n1ll+ of the center of the rotating drum, and the first video head generate a magnetic field. By recording and playing still images while the tape is stopped, there is no need for special precision in the magnetic tape drive system, and by providing the video head with a predetermined azimuth angle, it is possible to improve the performance of existing formats. It is an object of the present invention to provide a 5fg-like recording/playback device that can perform recording and equal playback compatible with the VH5 standard (for example, the VH5 standard).

以Ｆ、本発明の一実施例を図について説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第１図及び第２図はそれぞれ本発明の一実施例によるｖ
’ｒｉｔの回転ドラム及び該Ｖ１’Ｒの記録１Ｆ・−の
トレース状態を示す図である。図において、（１）は回
転ドラム、ｔ２Ｌ　＋３１はそれぞれ所定のアジマス角
を有しこの回転ドラム（１）の外周面」二に、該回転ド
ラムの回転中Ｉシ・に対して対称な位置に取付けられた
第１１第２のビデオヘッド、（４）は所定のアジマス角
を有し」二記第２のビデオヘッド（３）に対し上記回転
ドラム（１）の中心軸方向に１トラック幅ずらして取付
けられた第３のビデオヘッドである。また。1 and 2 are v according to one embodiment of the present invention, respectively.
It is a figure which shows the tracing state of the rotating drum of 'rit and recording 1F.- of said V1'R. In the figure, (1) is a rotating drum, and t2L +31 each has a predetermined azimuth angle. The attached second video head (4) has a predetermined azimuth angle and is shifted by one track width in the direction of the central axis of the rotating drum (1) with respect to the second video head (3). This is the third video head installed. Also.

（５）は磁気テープ、（６）はこの磁気テープ（５）の
走行方向、（７）は上記回転ドラム（１）の回転方間、
（８）は上記第１のビデオベント（２）で記録されたト
ラック、（９）は上記第３のビデオヘッド（４）で記録
されたトラック、囮は既に記録済みのトラック、　＋Ｉ
ｌｌは１回記録毎にテープが送られる距離である。(5) is a magnetic tape, (6) is the running direction of this magnetic tape (5), (7) is the rotation direction of the rotating drum (1),
(8) is the track recorded by the first video vent (2), (9) is the track recorded by the third video head (4), the decoy is a track that has already been recorded, +I
ll is the distance the tape is sent for each recording.

次に動作について説明する。Next, the operation will be explained.

まず記録時は、磁気テープ（５）をローディング状態に
セットし、走行停止状態にしておく。そしてこの状態で
回転する回転ドラム（１）に取付けられた第１のビデオ
ベント（２）と第３のビデオヘッド（４）とで６己録を
行なっ。そのトレースが、トラ゛ンク（８）。First, during recording, the magnetic tape (5) is set in a loading state and kept in a stopped state. In this state, six recordings were made using the first video vent (2) and third video head (4) attached to the rotating drum (1). That trace is the trunk (8).

（９）であり、」二η己第１のビデオベント′ｔｚ＋　
＋こよるもの７１）トラック（８）、第３のビデオベン
ト（４）によるものがトラック（９）である。イ疋って
、磁気テープ（５）が停止状態であっても、該磁気テー
プ（５）が走行しているのと同様な記録か行なわれたこ
ととなる。次に記録完了後、上記磁気テープ（５）をそ
の走行方向（６）に距離ｆｉｌｌだけ送る。そして次の
記録が完了されるまで、上記磁気テープ（５）は停止状
態となる。ここで、」１記磁気テープ（５）を送る時、
キャプスタンモータ　（図示せず）か回転して該磁気テ
ープ（５）が一定距錐だけ送られる。この送り動作中は
記録を行なっていないので、キャプスタン回転速度は任
意でよい。(9), and the first video vent 'tz+
71) Track (8), track (9) is caused by the third video vent (4). In other words, even if the magnetic tape (5) is in a stopped state, recording is performed in the same way as if the magnetic tape (5) were running. Next, after the recording is completed, the magnetic tape (5) is fed a distance fill in its running direction (6). The magnetic tape (5) then remains in a stopped state until the next recording is completed. Here, when sending magnetic tape (5) in item 1,
A capstan motor (not shown) rotates to feed the magnetic tape (5) by a fixed distance. Since no recording is being performed during this feeding operation, the capstan rotation speed may be arbitrary.

次に通電再生時には、磁気テープは既存のフォーマット
に従い一定速度で連続的に走行し、従って磁気テープを
、枢動するキャプスタンモータも通常通り回転している
。そしてこの再生時においては、上３己！８１のビデオ
ヘッド（２）でｎ記録されたトラック（８）は、同じ第
１のビデオヘッド（２）でトレースされるが、」二Ｊ己
第３のビデオへ′ンド（４）で５己録されたトラック（
９）は、第２のビデオベント（３）でトレースされる。Next, during energized playback, the magnetic tape runs continuously at a constant speed according to the existing format, and therefore the capstan motor that pivots the magnetic tape also rotates as usual. And at the time of this playback, the top three! The track (8) recorded on the 81 video head (2) is traced on the same first video head (2), but the track (8) is traced on the same first video head (2), but the second track (8) is traced on the third video head (4) on the fifth track (4). recorded track (
9) is traced with the second video vent (3).

従って、従来のＶｌｋと同様に再生される事となる。Therefore, it will be reproduced in the same way as the conventional Vlk.

次に静止画像再生時には、」−紀磁気テ〜ブ（５）は上
記記録時と同じく走行停止状態にあり、この場合は、上
記記録時に使用されたビデオヘッドと同一のビデオヘッ
ドでトレースされる。つまり、上記第１のビデオヘッド
（２）で記録されたトラック（８）は該第１のビデオヘ
ッド（２）で再生され、上記第３のビデオヘッド１４）
で記録されたトラック（９）は該第３のビデオヘッド（
４）を使って再生される。Next, when playing back a still image, the magnetic tape (5) is in a stopped state as it was during the above recording, and in this case, the same video head used during the above recording is used to trace the image. . In other words, the track (8) recorded by the first video head (2) is played back by the first video head (2), and the track (8) recorded by the first video head (2) is played back by the third video head (14).
Track (9) recorded in the third video head (
4).

なお、上記通常再生を行なう際、再生時のヘッド＋２１
．　＋３）の軌跡は上記記録トラック＋８１．　＋９１
と一致しないので、ミス・トラックを起こすが、それは
幅広ヘッドの使用と再生時のトラッキング調整とにより
、実用上差し支えの無い程度の再生画像が得られる。In addition, when performing the above normal playback, the head +21 during playback
．． The trajectory of +3) is the above recording track +81. +91
However, by using a wide head and adjusting the tracking during playback, a reproduced image that does not cause any problem can be obtained for practical purposes.

また、」二記第２のヘッド（３）と第３のヘッド（４）
はアノマス角を同じとし、上記第１のヘッド（２）はそ
れらとは異なるアジマス角を持たせる事により、即ち例
えは、　Ｖｌ−１８規格のアジマス記録方式のようにヘ
ッド＋３）　＋４．ｌに＋６°、ヘッド（２）に−６°
のアジマス角を持たせることにより、ガードパンドレス
記録が行なえ、かつ１フレーム、２フイ一ルド方式の記
録か行なえる。従ってこの場合はＶｆ−ＩＳ方式の通常
のＶ’ｒＲと互換性を持つこととなり、長時間ＶＴＲで
録画した磁気テープをＶＨ５方式の通常のＶＴＲで再生
できることとなる。Also, the second head (3) and the third head (4)
have the same anomalous angle, and the first head (2) has an azimuth angle different from them, that is, for example, as in the azimuth recording method of the Vl-18 standard, the head +3) +4. +6° to l, -6° to head (2)
By having an azimuth angle of , guard panless recording can be performed, and one frame or two field type recording can be performed. Therefore, in this case, it is compatible with the normal V'rR of the Vf-IS system, and a magnetic tape recorded on a long-time VTR can be played back on a normal VH5 system.

このように木実り小側の間欠記録による長時間Ｖ’ｌ”
　Ｒでは、磁気テープを間欠走行させそのうちの走行停
止状態で記録を行なうようにしたので、記録時のテープ
速度側わ１１を考える必要がな（，１回の記録見了時に
次の記録のためのテープ１送り贋を制御するだけで良く
、その制御は谷易なものとなる。また、静止画像再生時
には記録時と同一の第１、Ｓ３のビデオヘッド＋２１．
　１４１で再生するようにしたので、記録トラック＋８
１．　＋９１を正確にトレースすることができ、ノイズ
・バーのないステル（静止〕再生が可能となる。In this way, long-term V'l'' by intermittent recording on the small side of the tree.
In R, the magnetic tape is run intermittently and recording is performed when the tape stops running, so there is no need to consider the tape speed during recording (11). It is only necessary to control whether the tape 1 is fed or not, and the control is easy.Furthermore, during still image playback, the same 1st and S3 video heads + 21.
141, so the recording track +8
1. +91 can be traced accurately, enabling stealth (still) playback without noise bars.

さらに、９Ｌ米のｖｉｉｓ方式あるいはベータ方式のＶ
’１’　Ｒで行なわれているアジマス記録を行なう’Ｅ
？”これらの方式の通常のＶＴＲと互換性を持たせるこ
とができる。In addition, 9L US VIIS method or Beta method V
'1' Perform azimuth recording performed in R 'E
? ``These systems can be made compatible with normal VTRs.

なお、本発明の思想は、従来のＶ’ｌ’Ｒでの特殊記録
、再生方法へ応用することも可能である。Note that the idea of the present invention can also be applied to special recording and reproducing methods in conventional V'l'R.

以上のように、この発明に係る長時間ＶＴＲによれは、
回転ドラム上の対称位ｒに取付けられた１対の第１．第
２のビデオヘッドにより通常再生を行ない、上記第２の
ビデオヘッドに苅し上記回転ドラムの中心軸方向に１ト
ラック幅ずらして取付けられた第３のビデオヘッドと上
記第１のビデオヘッドとによって磁気テープ停止状態で
記録及び静止画像再生を行なうようにしたので、磁気テ
ープ駆動系に特別な精度を必要とせず、”しかもさらに
上記ヘッドに所定のアジマス角を設けることにより既存
のＶ’ｌ’Ｒと互換ヰのある記録、再生を行なうことか
できる効果かある。As described above, the long-time VTR according to the present invention has the following features:
A pair of first . A second video head performs normal playback, and a third video head attached to the second video head and shifted by one track width in the direction of the central axis of the rotating drum and the first video head perform normal playback. Since recording and still image playback are performed while the magnetic tape is stopped, there is no need for special precision in the magnetic tape drive system, and by providing the head with a predetermined azimuth angle, There is an effect of being able to perform recording and playback that is compatible with R.

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

第１図（λ）　（ｂ）　（ｃ＞　（ｄ）はそれぞれ本発
明の一実施例による磁気録画再生装置の回転ドラムの左
側面図、正面図、右側面図、及び底面図、第２図は上記
装置の記録時のトレース状態を示す図である。 （１）・・・回転ドラム、（２）・・・第１のビデオヘ
ッド、（３）・・・第２のビデオヘッド、（４）・・・
第３のビデオヘッド、（５）・・・磁気テープ。 なお、図中同一符号は同−又は相当部分を示す。 代理人　　　　葛　　野　　信　　−FIG. 1 (λ) (b) (c> (d) is a left side view, a front view, a right side view, and a bottom view of a rotating drum of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, respectively, and FIG. is a diagram showing a trace state during recording of the above device. (1) Rotating drum, (2) First video head, (3) Second video head, (4 )...
Third video head (5)...magnetic tape. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Shin Kuzuno −

Claims (1)

【特許請求の範囲】[Claims] （１）　　間欠記録をすることにより長時間記録を可能
とした磁気録画再生装置において、磁気テープに対して
所定の角度を持って配置された回転ドラムと、該回転ド
ラムの外周上にその回転中心に対して対称に取付けられ
た通常再生を行なうための第１．第２のビデオヘッドと
、この第２のビデオヘッドに対し上記回転ドラムの中心
・軸方向に１トラック幅ずらして取付けられ上記磁気テ
ープの停止時に上記第１のビデオヘッドとともに記録及
び静止画像再生を行なうための第３のビデオヘッドとを
備えたことを特徴とする磁気録画再生装置。(1) In a magnetic recording/playback device that enables long-time recording by performing intermittent recording, a rotating drum is placed at a predetermined angle with respect to the magnetic tape, and the center of rotation is located on the outer periphery of the rotating drum. The first one for normal playback is installed symmetrically to the other. a second video head, which is attached one track width apart from the second video head in the center and axial direction of the rotating drum, and which records and reproduces still images together with the first video head when the magnetic tape stops; 1. A magnetic recording and reproducing apparatus comprising: a third video head for performing a magnetic recording/reproducing apparatus.
JP57229816A 1982-12-29 1982-12-29 Magnetic picture recording and reproducing device Granted JPS59123377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57229816A JPS59123377A (en) 1982-12-29 1982-12-29 Magnetic picture recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57229816A JPS59123377A (en) 1982-12-29 1982-12-29 Magnetic picture recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS59123377A true JPS59123377A (en) 1984-07-17
JPH0461552B2 JPH0461552B2 (en) 1992-10-01

Family

ID=16898114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57229816A Granted JPS59123377A (en) 1982-12-29 1982-12-29 Magnetic picture recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS59123377A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253979A (en) * 1985-05-02 1986-11-11 Matsushita Electric Ind Co Ltd Rotary head type magnetic picture recording and reproducing device
JPH0596923U (en) * 1985-08-22 1993-12-27 ドイチエ トムソン−ブラント ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Magnetic tape unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499122A (en) * 1972-05-12 1974-01-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS499122A (en) * 1972-05-12 1974-01-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253979A (en) * 1985-05-02 1986-11-11 Matsushita Electric Ind Co Ltd Rotary head type magnetic picture recording and reproducing device
JPH0596923U (en) * 1985-08-22 1993-12-27 ドイチエ トムソン−ブラント ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Magnetic tape unit

Also Published As

Publication number Publication date
JPH0461552B2 (en) 1992-10-01

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