JPH0337130Y2 - - Google Patents
Info
- Publication number
- JPH0337130Y2 JPH0337130Y2 JP1236084U JP1236084U JPH0337130Y2 JP H0337130 Y2 JPH0337130 Y2 JP H0337130Y2 JP 1236084 U JP1236084 U JP 1236084U JP 1236084 U JP1236084 U JP 1236084U JP H0337130 Y2 JPH0337130 Y2 JP H0337130Y2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- head
- azimuth
- signal
- magnetic head
- 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
- 238000001514 detection method Methods 0.000 claims description 17
- 230000004907 flux Effects 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【考案の詳細な説明】
（考案の技術分野）
本考案はテープ再生時に起こる高域損失の大き
いアジマスずれを検出し、補正する装置に関す
る。[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to an apparatus for detecting and correcting azimuth deviation that causes large high-frequency loss during tape playback.
（従来技術の問題点）
従来のテープレコーダにおいては製造段階でヘ
ツドの位置が決められており、テープ再生時にア
ジマスずれが発生してもなんら対応策がないため
オーデイオ信号の広域損失が大きくなり、聴感上
の違和感となつていた。(Problems with the prior art) In conventional tape recorders, the position of the head is determined at the manufacturing stage, and there is no countermeasure against azimuth deviation that occurs during tape playback, resulting in large wide-area losses in the audio signal. It became an audible discomfort.
（考案の目的）
本考案は上記のような従来欠点を解消するため
に成されたもので、その目的とするところは、テ
ープ再生時に発生するアジマスずれによる高域損
子を補正して、良好な特性の再生を可能とするこ
とにある。(Purpose of the invention) This invention was made to eliminate the above-mentioned drawbacks of the conventional technology.The purpose of this invention is to correct the high-frequency loss due to the azimuth shift that occurs during tape playback, and to improve the quality of the tape. The goal is to enable the reproduction of unique characteristics.
（考案の構成）
本考案による磁気ヘツドのアジマス調整装置
は、記録されたオーデイオ信号を再生する磁気ヘ
ツドと、該磁気ヘツドと一体に形成され、テープ
走行方向にギヤツプを有し、テープの走行方向と
ギヤツプ方向のずれから生じるテープからの磁束
信号を検出するアジマス検出部と、該アジマス検
出部で検出された信号を整流する整流回路と、該
整流回路からの信号に応じて作動するサーボ回路
と、該サーボ回路により駆動され前記磁気ヘツド
のアジマス角を前記磁束信号が減少する方向へ補
正するヘツド位置補正モータとを備えたことを特
徴とする。(Structure of the invention) The azimuth adjustment device for a magnetic head according to the invention includes a magnetic head for reproducing recorded audio signals, is formed integrally with the magnetic head, has a gap in the tape running direction, and has a gap in the tape running direction. an azimuth detection unit that detects a magnetic flux signal from the tape resulting from a deviation in the gap direction; a rectification circuit that rectifies the signal detected by the azimuth detection unit; and a servo circuit that operates in response to a signal from the rectification circuit. , a head position correction motor that is driven by the servo circuit and corrects the azimuth angle of the magnetic head in a direction in which the magnetic flux signal decreases.
（考案の実施例）
以下、本考案の詳細を図示した実施例によつて
説明する。(Embodiments of the invention) The details of the invention will be described below with reference to illustrated embodiments.
第１図は本考案によるヘツドの構成図であり、
第２図は本考案の実施例を示すブロツク図であ
る。第１図に於いて、１はヘツド本体、２はヘツ
ド本体１と一体に形成され、テープ走行方向にギ
ヤツプを設けたアジマスずれ検出ヘツド、３はテ
ープのＬチヤンネル側、４はＲチヤンネル用ヘツ
ド、５はテープのＬチヤンネル側、６はテープの
Ｒチヤンネル側、７はアンプ回路部、８は整流回
路、９はサーボ回路部、１０はヘツドの位置を補
正するモータを示している。 FIG. 1 is a block diagram of the head according to the present invention.
FIG. 2 is a block diagram showing an embodiment of the present invention. In Fig. 1, 1 is the head body, 2 is an azimuth deviation detection head that is formed integrally with the head body 1 and has a gap in the tape running direction, 3 is the L channel side of the tape, and 4 is the head for the R channel. , 5 is the L channel side of the tape, 6 is the R channel side of the tape, 7 is an amplifier circuit, 8 is a rectifier circuit, 9 is a servo circuit, and 10 is a motor for correcting the position of the head.
まず、テープが矢印Ａ方向に走行すると、Ｌチ
ヤンネル用ヘツド３はＬチヤンネル、Ｒチヤンネ
ル用ヘツド４はＲチヤンネルの信号をテープから
拾いステレオ信号として従来からの方法で再生さ
れる。 First, when the tape runs in the direction of arrow A, the L channel head 3 picks up the L channel signal and the R channel head 4 picks up the R channel signal from the tape and reproduces it as a stereo signal using a conventional method.
アジマスずれ検出ヘツド２はテープの走行方向
がヘツド本体１に対して、正常である場合、すな
わち、検出部２のギヤツプ方向とテープの走行方
向が一致している場合には、ギヤツプの部分にお
けるテープからの磁束の角度が直角なつているた
め磁束がフエライト表面を通るだけで、アジマス
ずれ検出ヘツド２の図示しないコイルにまで通ら
ないので、検出信号は出力しないが、一旦アジマ
スずれが発生すると、すなわち、テープ走行方向
Ａとアジマスずれ検出部２のギヤツプの方向との
間に角度が生じると、アジマスずれ検出ヘツド２
の傾きに応じてアジマスずれ検出ヘツド２の図示
しないコイルにテープからの磁束が通り、アジマ
スずれ検出ヘツド２はテープ信号即ち磁束信号を
検出する。さらに、検出された磁束信号は第２の
アンプ回路７で増幅されて、整流部８に入力さ
れ、検出された磁束信号のレベルに応じた直流信
号に変換される。そして、サーボ回路９は前記直
流信号を受けて、モータ１０を介してヘツド１を
テープの走行方向に対して角度を持つ方向、即
ち、磁束が減少する方向にアジマス角を補正す
る。即ち、第１図のＢ方向に動かせる。従つて、
アジマスずれ検出ヘツド２で検出した信号に応じ
てヘツドを所定量移動させると、アジマスずれを
補正することができる。 When the running direction of the tape is normal with respect to the head body 1, that is, when the gap direction of the detecting section 2 and the running direction of the tape match, the azimuth deviation detection head 2 detects the tape in the gap part. Since the angle of the magnetic flux from the head is at right angles, the magnetic flux only passes through the ferrite surface and does not pass through the unillustrated coil of the azimuth shift detection head 2, so no detection signal is output. However, once an azimuth shift occurs, , when an angle occurs between the tape running direction A and the gap direction of the azimuth deviation detection section 2, the azimuth deviation detection head 2
The magnetic flux from the tape passes through a coil (not shown) of the azimuth shift detection head 2 in accordance with the inclination of the tape, and the azimuth shift detection head 2 detects a tape signal, that is, a magnetic flux signal. Furthermore, the detected magnetic flux signal is amplified by the second amplifier circuit 7, input to the rectifier 8, and converted into a DC signal according to the level of the detected magnetic flux signal. Then, the servo circuit 9 receives the DC signal and corrects the azimuth angle of the head 1 via the motor 10 in a direction that is at an angle to the running direction of the tape, that is, in a direction in which the magnetic flux decreases. That is, it can be moved in the direction B in FIG. Therefore,
By moving the head a predetermined amount in accordance with the signal detected by the azimuth deviation detection head 2, the azimuth deviation can be corrected.
（考案の効果）
本考案はヘツドと一体にアジマスずれ検出ヘツ
ドを設けてアジマスずれによつて生じるテープか
らの磁束信号を検出し、この検出信号に基づいて
磁束信号が減少する方向にサーボをかけるように
構成したため、アジマスずれによつて生じるオー
デイオ信号の広域損失を防止し、聴感上の違和感
を軽減する。(Effects of the invention) The present invention includes an azimuth deviation detection head integrated with the head to detect the magnetic flux signal from the tape caused by the azimuth deviation, and based on this detection signal, applies a servo in the direction in which the magnetic flux signal decreases. With this configuration, wide area loss of audio signals caused by azimuth deviation is prevented, and audible discomfort is reduced.
第１図は本考案の実施例に係るアジマスずれ検
出ヘツドとテープとの関係を示す説明図、第２図
は本考案による磁気ヘツドのアジマス調整装置を
示すブロツク図である。
１……ヘツド、２……テープ走行方向にギヤツ
プを設けたアジマスずれ検出ヘツド、３……Ｌチ
ヤンネル用ヘツド、４……Ｒチヤンネル用ヘツ
ド、５……テープのＬチヤンネル側、６……テー
プのＲチヤンネル側、７……アンプ回路部、８…
…整流回路部、９……サーボ回路部、１０……ヘ
ツド１の位置を補正するモータ。
FIG. 1 is an explanatory diagram showing the relationship between an azimuth deviation detection head and a tape according to an embodiment of the present invention, and FIG. 2 is a block diagram showing an azimuth adjustment device for a magnetic head according to the present invention. 1...Head, 2...Azimuth deviation detection head with a gap in the tape running direction, 3...Head for L channel, 4...Head for R channel, 5...L channel side of tape, 6...Tape R channel side, 7... Amplifier circuit section, 8...
. . . rectifier circuit section, 9 . . . servo circuit section, 10 . . . motor for correcting the position of the head 1.
Claims (1)
磁気ヘツドと、該磁気ヘツドと一体に形成され、
テープ走行方向にギヤツプを有し、テープの走行
方向とギヤツプ方向のずれから生じるテープから
の磁束信号を検出するアジマス検出部と、該アジ
マス検出部で検出された信号を整流する整流回路
と、該整流回路からの信号に応じて作動するサー
ボ回路と、該サーボ回路により駆動され前記磁気
ヘツドのアジマス角を前記磁束信号が減少する方
向へ補正するヘツド位置補正モータとを備えたこ
とを特徴とする磁気ヘツドのアジマス調整装置。 a magnetic head for reproducing audio signals recorded on a tape; and a magnetic head formed integrally with the magnetic head;
an azimuth detection section that has a gap in the tape running direction and detects a magnetic flux signal from the tape resulting from a deviation between the tape running direction and the gap direction; a rectification circuit that rectifies the signal detected by the azimuth detection section; The present invention is characterized by comprising a servo circuit that operates in response to a signal from a rectifier circuit, and a head position correction motor that is driven by the servo circuit and corrects the azimuth angle of the magnetic head in a direction in which the magnetic flux signal decreases. Azimuth adjustment device for magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1236084U JPS60127620U (en) | 1984-02-02 | 1984-02-02 | Magnetic head azimuth adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1236084U JPS60127620U (en) | 1984-02-02 | 1984-02-02 | Magnetic head azimuth adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60127620U JPS60127620U (en) | 1985-08-27 |
| JPH0337130Y2 true JPH0337130Y2 (en) | 1991-08-06 |
Family
ID=30495345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1236084U Granted JPS60127620U (en) | 1984-02-02 | 1984-02-02 | Magnetic head azimuth adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60127620U (en) |
-
1984
- 1984-02-02 JP JP1236084U patent/JPS60127620U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60127620U (en) | 1985-08-27 |
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