JPS60239912A - Cue head of magnetic recording and reproducing device - Google Patents
Cue head of magnetic recording and reproducing deviceInfo
- Publication number
- JPS60239912A JPS60239912A JP59095634A JP9563484A JPS60239912A JP S60239912 A JPS60239912 A JP S60239912A JP 59095634 A JP59095634 A JP 59095634A JP 9563484 A JP9563484 A JP 9563484A JP S60239912 A JPS60239912 A JP S60239912A
- Authority
- JP
- Japan
- Prior art keywords
- cue
- magnetic tape
- head
- mode
- recording
- 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
- G11B5/488—Disposition of heads
- G11B5/4893—Disposition of heads relative to moving tape
-
- 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
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
Abstract
Description
【発明の詳細な説明】 本発明は磁気記録再生装置のキューヘッドに関する。[Detailed description of the invention] The present invention relates to a cue head for a magnetic recording/reproducing device.
８ｍビデオテープレコーダーでは、第１図に示すように
ビデオトラック１８０度点とキュー信号位置の長さをＸ
値（３０閣）として定め、互換性がもたせられている。For an 8m video tape recorder, as shown in Figure 1, the length of the video track 180 degree point and the cue signal position is
It has been established as a value (30 cabinets) and is compatible.
このようにして所定の位置に記録されたキュー信号は、
通常、頭出し用として用いられている。The cue signal recorded at a predetermined position in this way is
Usually used for cueing.
ところで、磁気テープの保護、ヘッドの摩耗防止あるい
はＦＦ ／ ＲＷ Ｄモードにおける早送り時のテープ
巻取９トルク増大に伴なうモーターの大型化等の問題を
避けるため、Ｆ Ｆ ／ ｌ（Ｗ Ｏはドラムにテープ
を巻付けないで行なわれる。特に、近年におけるテープ
薄手化により、磁気テープ自体の永久伸びや磁性層の剥
離等の問題が生じ易く、この点からもＦＦ／ＲＷＤモー
ドではドラムに磁気テープを巻付けない方が望ましい。By the way, in order to protect the magnetic tape, prevent head wear, and avoid problems such as an increase in the size of the motor due to the increase in tape winding torque during fast forwarding in the FF/RWD mode, FF/L (WO is This is done without wrapping the tape around the drum.In particular, as tapes have become thinner in recent years, problems such as permanent elongation of the magnetic tape itself and peeling of the magnetic layer tend to occur. It is preferable not to wrap the tape around it.
このため、第２図に示すように１−１ｃ／ＰＢモードに
おいて、ビデオトラック１８０度点からＸ値を満足する
所定の位置にキューヘッド１を設け、この位置でキュー
信号を記録するようにすると、同図点線で示すようにＦ
Ｆ ／ Ｉ（、Ｗ Ｄモードにおいてキューヘッド１
は磁気テープ２から離れてしまい、キュー信号再生用と
して用いることができな（Ａｏ
従って、従来例においてはキューヘッド１を記錘用とし
、更に再生用キューヘッド３を追加していた。このため
キューヘッドは２個必要となっていた。For this reason, as shown in Figure 2, in the 1-1c/PB mode, if the cue head 1 is set at a predetermined position that satisfies the X value from the 180 degree point of the video track, and the cue signal is recorded at this position. , as shown by the dotted line in the same figure, F
F/I (, cue head 1 in WD mode
is separated from the magnetic tape 2, and cannot be used for cue signal reproduction (Ao) Therefore, in the conventional example, cue head 1 was used for recording weight, and cue head 3 for reproduction was added. Two cue heads were required.
本発明は上述の点に鑑みなされたもので、その目的はキ
ューヘッドを１つにした磁気記録再生装置におけるキュ
ーヘッドを提供するにある。The present invention has been made in view of the above-mentioned points, and its object is to provide a cue head in a magnetic recording/reproducing device that has a single cue head.
本発明は、上記目的を達成するためにＸ値を満足する位
置よりも距離ｌだげ磁気テープの進行方向に位置し、か
つＲＥＣ／ＰＢモードおよびＦｌｉ’１／几ＷＤモード
で共に磁気テープが巻付く位置に１つの記録再生キュー
ヘッドを設けたことを特徴とする。In order to achieve the above object, the present invention provides for a position where the magnetic tape is located in the traveling direction of the magnetic tape by a distance l from the position that satisfies the X value, and in which the magnetic tape is It is characterized in that one recording/reproducing cue head is provided at the winding position.
以下本発明を図面に示す実施例によって説明する。The present invention will be explained below with reference to embodiments shown in the drawings.
第３図は几Ｅ Ｃ／Ｐ ［１モードにおける状態を示し
ている。回転ヘッドを有するドラム４に巻付けられた磁
気テープ２は、その１８０度点ＡからＸ値に対応する位
置Ｂを経て更に磁気テープ２の進行方向に距離ｌの位置
Ｃで記録再生キューヘッド５に巻付いている。FIG. 3 shows the state in E C/P [1 mode. The magnetic tape 2 wound around a drum 4 having a rotary head passes from the 180 degree point A to a position B corresponding to the X value, and further moves to a recording/reproducing cue head 5 at a position C at a distance l in the direction of travel of the magnetic tape 2. wrapped around.
詔４図はＦ Ｆ ／ ＲＷ Ｄモードにおける状態を示
している。ドラム４から離れた磁気テープ２は。Figure 4 shows the state in FF/RWD mode. The magnetic tape 2 is separated from the drum 4.
第３図と同様に記録再生キューヘッド５に巻付いている
。It is wound around the recording/reproducing cue head 5 in the same way as in FIG.
上記両図の説明かられかるように、記録再生キューヘッ
ド５は、ＲＪづＣ／ ｉ） ＢモードおよびＦ Ｆ／
ＲＷ Ｄモードにおいて共に磁気テープ２が巻付けられ
ているよう距離ｌが決められている。As can be seen from the explanations of the above figures, the recording/reproducing cue head 5 operates in RJZC/i) B mode and FF/
The distance l is determined so that the magnetic tape 2 is wound around both in the RWD mode.
このような構成であるため、従来のキュー信号の記録位
置よりも距離ｅだげ早くキュー信号が記録される位置に
記録再生キー−ヘッド５が設けられていることになり、
距離ｌを桶正しなげれば互換性を欠いてしまう。そこで
第５図に示すように、従来からのキュー信号発生回路６
を用い、モノマルチ７で定まる一定期間、Ｖ、 ５ｙｎ
ｃをキュー信号とし、遅延装置８を介してキー−ヘッド
５に伝えキュー信号９を記録させる。この遅延装置８は
、Ｒｍ Ｃ／ Ｐ Ｂモードのテープ速度から距離ｌに
相当する時間だけ遅延するものであり、このようにして
６己録されたキュー信号は、従来のＸ値に相当する位置
でキー−ヘッドにより記録したものと全く同一である。With this configuration, the recording/reproducing key head 5 is provided at a position where the cue signal is recorded a distance e earlier than the conventional cue signal recording position.
If the distance l is not corrected, compatibility will be lost. Therefore, as shown in FIG. 5, a conventional cue signal generation circuit 6
, for a certain period determined by monomulti 7, V, 5yn
c is used as a cue signal, and is transmitted to the key head 5 via the delay device 8 to record the cue signal 9. This delay device 8 delays the tape speed in the Rm C/P B mode by a time corresponding to the distance l, and the cue signal recorded in this way is placed at a position corresponding to the conventional X value. It is exactly the same as that recorded by the key-head.
従って、従来同様互換性を持たせることができる。Therefore, it is possible to provide compatibility as in the conventional case.
以上説明したように本発明は、）Ｌｋ８ＪＣ／ＰＢモー
ドおよびＦ Ｆ ／ ＲＷ Ｄモードで共に磁気テープ
が巻付く位置で、しかもＸ値に相当する位置よりも磁気
テープの進行方向に距離ｌを隔てた位置に、記録再生キ
ューヘッドを設け、キュー信号の記録は距離４に相当す
る分だけ磁気テープが進行してから行なうよう遅延装置
を設けたため、互換性を保ってキューヘッドを１個にす
ることができる。As explained above, the present invention is arranged at a position where the magnetic tape is wound in both Lk8JC/PB mode and F F / RWD mode, and furthermore, at a distance l in the direction of movement of the magnetic tape from the position corresponding to the X value. A recording/reproducing cue head was installed at the position where the recording/reproducing cue head was placed, and a delay device was installed so that the recording of the cue signal was performed after the magnetic tape had advanced by a distance corresponding to distance 4. Therefore, the number of cue heads was reduced to one to maintain compatibility. be able to.
尚、遅延装置は距離ｌに対応する時間全遅らせる手段と
して上述したが、磁気テープの進行量を周波数発電機等
から検出し距離ｌに達した時にキュー信号を記録させる
ものであっても良い。The delay device is described above as a means for delaying the entire time corresponding to the distance l, but it may also be a device that detects the amount of advance of the magnetic tape from a frequency generator or the like and records a cue signal when the distance l is reached.
第１図は従来のキュー信号とビデオトラックの関係を示
すテープパターン図、第２図は従来の磁気記録再生装置
のキューヘッドを示す平面図、第３図および第４図は本
発明の一実施例による磁気記録再生装置のキューヘッド
を示すＲＥＣ／ＰＢモードおよびＦＦ／ＲＷＤモードに
おける平面図、第５図はキュー信号発生回路の概要を示
す回路図である。
２・・・・・・磁気テープ、４・・・・・・ ドラム、
５・・・・・・記録再生キューヘッド、６・・・・・・
キュー信号発生回路、８・・・・・・遅延装置。
第１図
第３図
第４図Fig. 1 is a tape pattern diagram showing the relationship between a conventional cue signal and a video track, Fig. 2 is a plan view showing a cue head of a conventional magnetic recording/reproducing device, and Figs. 3 and 4 are one embodiment of the present invention. FIG. 5 is a plan view showing the cue head of the magnetic recording/reproducing apparatus according to the example in REC/PB mode and FF/RWD mode, and FIG. 5 is a circuit diagram showing an outline of the cue signal generation circuit. 2... Magnetic tape, 4... Drum,
5... Recording/playback cue head, 6...
Cue signal generation circuit, 8...Delay device. Figure 1 Figure 3 Figure 4
Claims (1)
で共に磁気テープに巻付き、かつドラムに巻付けられた
上記磁気テープの１８０度点からＸ値に対応する位置よ
シも更に上記磁気テープの定行方向へ所定距離進んだ位
置に、記録再生キューヘッドを設け、キュー信号発生回
路と上記記録再生キューヘッドの間に、上記所定距離に
対応する分だけキュー信号を遅らす遅延装置を設げ１こ
ことを特徴とする磁気記録再生装置のキューヘッド。1-4. In both the Ec/PB mode and the F/RWD mode, the position corresponding to the X value from the 180 degree point of the magnetic tape wound on the drum is also adjusted to the normal direction of the magnetic tape. A recording/reproducing cue head is provided at a position that has advanced a predetermined distance in the direction, and a delay device is provided between the cue signal generation circuit and the recording/reproducing cue head for delaying the cue signal by an amount corresponding to the predetermined distance. A cue head for a magnetic recording and reproducing device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095634A JPS60239912A (en) | 1984-05-15 | 1984-05-15 | Cue head of magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095634A JPS60239912A (en) | 1984-05-15 | 1984-05-15 | Cue head of magnetic recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60239912A true JPS60239912A (en) | 1985-11-28 |
| JPH056730B2 JPH056730B2 (en) | 1993-01-27 |
Family
ID=14142945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59095634A Granted JPS60239912A (en) | 1984-05-15 | 1984-05-15 | Cue head of magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60239912A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141368U (en) * | 1979-03-28 | 1980-10-09 | ||
| JPS58141424U (en) * | 1982-03-16 | 1983-09-22 | ティーディーケイ株式会社 | magnetic head |
-
1984
- 1984-05-15 JP JP59095634A patent/JPS60239912A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141368U (en) * | 1979-03-28 | 1980-10-09 | ||
| JPS58141424U (en) * | 1982-03-16 | 1983-09-22 | ティーディーケイ株式会社 | magnetic head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH056730B2 (en) | 1993-01-27 |
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