JPS5834571Y2 - Kaitenhetsudogatajikikilokusaisouchi - Google Patents
KaitenhetsudogatajikikilokusaisouchiInfo
- Publication number
- JPS5834571Y2 JPS5834571Y2 JP11794573U JP11794573U JPS5834571Y2 JP S5834571 Y2 JPS5834571 Y2 JP S5834571Y2 JP 11794573 U JP11794573 U JP 11794573U JP 11794573 U JP11794573 U JP 11794573U JP S5834571 Y2 JPS5834571 Y2 JP S5834571Y2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- recording
- magnetic
- running speed
- 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.)
- Expired
Links
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【考案の詳細な説明】
本考案は、回転駆動される回転磁気ヘッドの回転軌跡に
沿って磁気テープを所定の角度らせん状に巻付けて走行
せしめ、一定のトラックピッチの前記磁気テープの長手
方向に対して傾斜した記録トラックとして順次信号を記
録再生する回転ヘッド型磁気記録再生装置（以下ＶＴＲ
と呼ぶ）の改良に関するもので、通前のＶＴＲとの互換
性を満足するとともに、必要時にはより高密度の記録が
可能なようは構成したものである。[Detailed Description of the Invention] The present invention involves winding a magnetic tape in a spiral shape at a predetermined angle and running it along the rotation locus of a rotating magnetic head that is rotationally driven. A rotary head type magnetic recording/reproducing device (hereinafter referred to as a VTR) that sequentially records and reproduces signals on recording tracks inclined to the
This invention relates to improvements to the conventional VTR, which is compatible with conventional VTRs, and is designed to enable higher-density recording when necessary.
第１図はＶＴＲの記録軌跡を模式的に示すもので、ａが
音声信号記録帯、ｂが回転磁気ヘッドによるビデオ信号
記録帯であり、１はその記録軌跡を示す。FIG. 1 schematically shows the recording trajectory of a VTR, where a indicates an audio signal recording band, b indicates a video signal recording band formed by a rotating magnetic head, and 1 indicates the recording trajectory.
Ｃはコントロール信号記録帯である。これらの記録帯の
巾、ビデオ信号記録トラック１のトラック巾ｔ１および
ガートバンド巾ｔ２は記録テープの互換性を得るために
予じめ規格として定められている。C is a control signal recording band. The widths of these recording bands, the track width t1 of the video signal recording track 1, and the guard band width t2 are predetermined as standards in order to obtain compatibility of recording tapes.
そして、これらの規定の記録パターンを得るために、回
転磁気ヘッド中、テープ走行速度、回転磁気ヘッドの回
転数がそれぞれ設定されている。In order to obtain these prescribed recording patterns, the tape running speed and the number of rotations of the rotating magnetic head are respectively set.
なチ・、記録トラック１の巾ｔ１とガートバンド巾ｔ２
との比は２：１になっており、ビデオ信号記録トラック
１のトラックピッチｌＡ＋ｔ２である。・The width t1 of the recording track 1 and the width t2 of the guard band
The ratio is 2:1, and the track pitch of video signal recording track 1 is lA+t2.
本考案はこのように定められた規格の第１の記録パター
ンとより高密度の記録が可能な第２の記録パターンとを
選択できるよう構成したもので、その特徴とするところ
は、回転磁気ヘッドによるビデオ信号記録トラック１の
トラック巾が規定の巾ｔ１より小さいＬｌとなるよう回
転磁気ヘッドのヘッド中が狭く構成されていることと、
テープ走行速度が第１の記録パターンを得る規定の第１
のテープ速度とその第１のテープ速度より遅い第２のテ
ープ速度に選択的に可変に構成されていることである。The present invention is configured so that it is possible to select between the first recording pattern of the established standard and the second recording pattern that enables higher-density recording, and its feature is that the rotating magnetic head The inside of the rotary magnetic head is configured to be narrow so that the track width of the video signal recording track 1 is Ll smaller than the prescribed width t1;
The first tape running speed is specified to obtain the first recording pattern.
and a second tape speed that is slower than the first tape speed.
今、このような構成においてテープ速度を第１の記録パ
ターンを得る規定の第１のテープ速度とし、回転ヘッド
の回転位相関係は規定のＶＴＲと同一にし記録あるいは
再生を行なうと、磁気テープ２上の回転ヘッドの走査軌
跡は第１図に点線で示すものとなり、トラック巾が狭く
なり、ガートバンド巾はＬ２と広がるがトラックピッチ
は規定の第１の記録パターンと同一となり、第１の記録
パターンの磁気テープを再生可能であるとともに、この
ＶＴＲで記録した磁気テープを規定のＶＴＲでも再生可
能なものである。Now, in such a configuration, when the tape speed is set to the specified first tape speed for obtaining the first recording pattern, and the rotational phase relationship of the rotary head is the same as that of the specified VTR, and recording or reproduction is performed, the magnetic tape 2 is The scanning locus of the rotating head is as shown by the dotted line in Figure 1, the track width becomes narrower, the girt band width increases to L2, but the track pitch is the same as the prescribed first recording pattern, and the first recording pattern In addition to being able to play back magnetic tapes recorded on this VTR, it is also possible to play back magnetic tapes recorded on this VTR using standard VTRs.
一方、テープ速度を規定の第１のテープ速度より遅い第
２のテープ速度にして記録を行うと、その記録トラック
は第２図に示すように、第１の記録パターンのトラック
ピッチより狭いトラックピッチとなり第１図の規定の第
１の記録パターンに比べより高密度な記録軌跡となる。On the other hand, when recording is performed at a second tape speed that is slower than the prescribed first tape speed, the recording track has a narrower track pitch than the track pitch of the first recording pattern, as shown in Figure 2. This results in a recording locus with higher density than the prescribed first recording pattern shown in FIG.
なお、この時においても、当然のことながら、第２のテ
ープ速度による第２の記録パターンの再生時に、■本の
記録トラックからのみ実質的な再生信号が得られるよう
に、例えば必要なガートバンド３が得られるよう第２の
テープ速度および回転ヘッド巾は選定される必要がある
。In addition, at this time, as a matter of course, when reproducing the second recording pattern at the second tape speed, for example, the necessary guard band The second tape speed and rotating head width need to be selected to obtain 3.
例えば、電子機械工業会規格ＣＰ−５０４（１９６９年
９月発行）に規定の記録パターンはテープ速度１９Ｃｒ
ｒＬ／５ｅｃ９回転磁気ヘッドとテープの相対速度１１
．１ｍ／ｓｅｃ 、ｔｌ中１００１ｔＴＬ以上、１２中
４０μ扉以上、トラックピッチであり、今これをＬ１＝
８０μｍ 、Ｌ２＝１００μｍにして、テープ速度を１
／２の９．５ｃｒｒＬ／ｓｅｅ にするとＬ１＝８０μ
扉、Ｌ’２＝１０μ扉となり、実用的な記録再生が望め
るものである。For example, the recording pattern specified in the Electronic Machinery Industry Association standard CP-504 (issued in September 1969) is at a tape speed of 19Cr.
rL/5ec9 Relative speed between rotating magnetic head and tape 11
．． 1m/sec, more than 1001tTL in tl, more than 40μ door in 12, track pitch, and now this is L1=
80μm, L2=100μm, tape speed 1
/2 9.5crrL/see, L1=80μ
The door L'2 is 10μ, and practical recording and reproduction can be expected.
なお、回転磁気ヘッドの速度は変えないので相対速度は
ほとんど変化しない。Note that since the speed of the rotating magnetic head is not changed, the relative speed hardly changes.
以上のように本考案のＶＴＲによれば、一般のＶＴＲ（
例えば、電子機械工業会規格ＣＰ−５０４に規定のＶＴ
Ｒ）との互換性を保持した１＼必要時にはより高密度の
記録が可能となり、新たに回転磁気ヘッドの追加も必要
とせず、テープ走行速度を変化せしめるのみで使用目的
により磁気テープを有効に使用できるものである。As described above, according to the VTR of the present invention, a general VTR (
For example, VT specified in the Electronic Machinery Industry Association standard CP-504
1) Maintains compatibility with R), and enables higher-density recording when necessary, and does not require the addition of a new rotating magnetic head, making the magnetic tape more effective depending on the purpose of use by simply changing the tape running speed. It can be used.
第１図は一般のＶＴＲの記録パターンを模式的に示す図
、第２図は本考案のＶＴＲによる記録パターンの一例を
示す図である。
１・・・ビデオ信号記録軌跡、２・・・磁気テープ、３
・・・ガートバンド。FIG. 1 is a diagram schematically showing a recording pattern of a general VTR, and FIG. 2 is a diagram showing an example of a recording pattern by a VTR of the present invention. 1... Video signal recording trajectory, 2... Magnetic tape, 3
...Gart band.
Claims (1)
に沿って所定の角度らせん状に巻付けてテープ駆動手段
により走行せしめ、所定のトラックピッチの前記磁気テ
ープの長手方向に対して傾斜した記録トラックとして順
次信号を前記磁気テープ上に記録再生する回転ヘッド型
磁気記録再生装置において、前記テープ駆動手段を記録
および再生時にそれぞれ前記磁気テープが第１のテープ
走行速度とその第１のテープ走行速度より遅い第２のテ
ープ走行速度で選択的に切換駆動可能に構成し、前記第
１のテープ走行速度でのテープ走行時には、第１のトラ
ックピッチの記録トラックの記録パターンとして前記磁
気テープに順次信号を記録再生し、前記第２のテープ走
行速度でのテープ走行時には、前記第１のトラックピッ
チより狭い第２のトラックピッチの記録トラックの第２
の記録パターンとして前記磁気テープに順次信号を記録
再生するよう構成するとともに、前記回転磁気ヘッドの
ヘッド中を前記第１のテープ走行速度による前記第１の
記録パターンの再生時および前記第２のテープ速度によ
る前記第２の記録パターンの再生時に、それぞれ１本の
記録トラックからのみ実質的な再生信号を得る巾に設定
したことを特徴とする回転ヘッド型磁気記録再生装置。A magnetic tape is wound spirally at a predetermined angle along the rotation locus of a rotary magnetic head that is rotationally driven and is run by a tape drive means, and a recording track is inclined with respect to the longitudinal direction of the magnetic tape with a predetermined track pitch. In a rotary head type magnetic recording and reproducing apparatus that sequentially records and reproduces signals on the magnetic tape, the tape driving means is operated to cause the magnetic tape to move at a first tape running speed and from the first tape running speed during recording and playback. The magnetic tape is configured to be able to be selectively switched and driven at a slow second tape running speed, and when the tape is running at the first tape running speed, signals are sequentially applied to the magnetic tape as a recording pattern of recording tracks of a first track pitch. During recording and reproduction, when the tape runs at the second tape running speed, the second recording track of the second track pitch is narrower than the first track pitch.
The structure is configured to sequentially record and reproduce signals on the magnetic tape as a recording pattern, and when the first recording pattern is reproduced at the first tape running speed in the head of the rotating magnetic head and when the second tape is reproduced. A rotary head type magnetic recording/reproducing device characterized in that the width is set to obtain a substantial reproduction signal from only one recording track when reproducing the second recording pattern according to the speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11794573U JPS5834571Y2 (en) | 1973-10-09 | 1973-10-09 | Kaitenhetsudogatajikikilokusaisouchi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11794573U JPS5834571Y2 (en) | 1973-10-09 | 1973-10-09 | Kaitenhetsudogatajikikilokusaisouchi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5063013U JPS5063013U (en) | 1975-06-09 |
| JPS5834571Y2 true JPS5834571Y2 (en) | 1983-08-03 |
Family
ID=28354724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11794573U Expired JPS5834571Y2 (en) | 1973-10-09 | 1973-10-09 | Kaitenhetsudogatajikikilokusaisouchi |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834571Y2 (en) |
-
1973
- 1973-10-09 JP JP11794573U patent/JPS5834571Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5063013U (en) | 1975-06-09 |
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