JPS6323202A - Rotary head assembly - Google Patents
Rotary head assemblyInfo
- Publication number
- JPS6323202A JPS6323202A JP16768486A JP16768486A JPS6323202A JP S6323202 A JPS6323202 A JP S6323202A JP 16768486 A JP16768486 A JP 16768486A JP 16768486 A JP16768486 A JP 16768486A JP S6323202 A JPS6323202 A JP S6323202A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- rotating
- drum
- rotating drum
- power
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
- G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches
-
- 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
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/125—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams conditioned by the operating function of the apparatus
-
- 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
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はＶＴＲなど磁気記録再生装置の回転ヘッドア
センブリに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotary head assembly for a magnetic recording/reproducing device such as a VTR.
第２図は従来の回転ヘッドアセンブリを示し、図におい
て、１は固定部（固定ドラム）、２は回転部（回転ドラ
ム）、３は該回転部２に設けられた磁気ヘッド、１）．
１２はロータリトランスの一次側（固定部側）、二次側
（回転部側）トランスであり、回転部２例のヘッド３と
固定部１側のアンプ（図示せず）は上記ロータリトラン
スにより電磁結合されている。FIG. 2 shows a conventional rotating head assembly, in which 1 is a fixed part (fixed drum), 2 is a rotating part (rotating drum), 3 is a magnetic head provided on the rotating part 2, 1).
12 is a rotary transformer primary side (fixed part side) and secondary side (rotating part side) transformer, and the head 3 of the two rotating parts and the amplifier (not shown) on the fixed part 1 side are electromagnetic by the rotary transformer. combined.
このような装置では、記録の場合はアンプからの信号は
ロータリトランスを介してヘッド３へ入力され、磁気テ
ープ（図示せず）に記録される。In such an apparatus, in the case of recording, a signal from an amplifier is input to the head 3 via a rotary transformer, and is recorded on a magnetic tape (not shown).
また再生の場合は磁気ヘッド３でピックアップされた信
号はロータリトラ、ンスを介してアンプへ人力される。In the case of reproduction, the signal picked up by the magnetic head 3 is manually input to an amplifier via a rotary transducer.
従ってヘッド３とアンプ間の距離は長く、またこれらの
間での信号の送受はロータリトランス８を介して電磁結
合により行なわれるため、ヘッド間のクロストークや外
部からのノイズの飛び込みなどにより、再生画像の画質
を劣化させていた。 ２
このような問題点を解決したものとして本件発明者によ
って開発された回転ヘンドアセンブリがある。これはヘ
ッドを有する回転ドラムにアンプを設け、ヘッドとアン
プ間を１ｉ磁結合ではなく、直接接続できるようにした
ものである。ここで上記アンプへの電源供給は、交流電
圧をトランスにより回転ドラム側に送り、これを整流器
等で直流に変換して行なっている。Therefore, the distance between the head 3 and the amplifier is long, and signals are sent and received between them by electromagnetic coupling via the rotary transformer 8, so crosstalk between the heads and noise coming in from outside may occur during playback. The image quality was degraded. 2. There is a rotary hend assembly developed by the inventor of the present invention that solves these problems. In this system, an amplifier is provided on a rotating drum having a head, and the head and amplifier can be directly connected instead of using 1i magnetic coupling. Here, power is supplied to the amplifier by sending alternating current voltage to the rotating drum side through a transformer, and converting it into direct current using a rectifier or the like.
しかしながら、このように交流電圧をトランスにより回
転ドラム側に送り直流に変換していたのではドラムの構
造が複雑になる上、電源からのノイズの飛び込みがふえ
てしまうという問題点があった。However, if AC voltage is sent to the rotating drum side using a transformer and converted into DC voltage, the structure of the drum becomes complicated and noise from the power source increases.
この発明は上記のような問題点を解消するためになされ
たもので、トランスを用いないで回転ドラムのアンプに
電力を供給できる回転へ７ドアセンブリを得ることを目
的としている。This invention was made to solve the above-mentioned problems, and its purpose is to obtain a rotating drum assembly capable of supplying power to an amplifier of a rotating drum without using a transformer.
この発明に係る回転ヘッドアセンブリは、アンプを有す
る回転ドラムに該アンプに電力を供給する太陽電池を設
け、固定ドラムに該太陽電池に光を供給する発光部を設
けたものである。In the rotary head assembly according to the present invention, a rotating drum having an amplifier is provided with a solar cell that supplies power to the amplifier, and a fixed drum is provided with a light emitting section that supplies light to the solar cell.
この発明においては、アンプを有する回転ドラムに太陽
電池を設け、固定ドラムに発光部を設けたから、固定ド
ラムの発光部からの光を回転ドラムの太陽電池により電
力に変換し、これを増幅器へ供給することができる。In this invention, the rotating drum with the amplifier is provided with a solar cell, and the fixed drum is provided with the light emitting section, so the light from the light emitting section of the fixed drum is converted into electric power by the solar cell of the rotating drum, and this is supplied to the amplifier. can do.
以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例による回転ヘッドアセンブリ
を示し、図において、第２図と同一符号は同一のものを
示し、４は回転ドラム（回転部）２上に設けられたアン
プ、５は該回転ドラム２の裏面に設けられた太陽電池、
６は固定ドラム（固定部）１に、上記太陽電池５と対向
するよう配置された発光部である。FIG. 1 shows a rotary head assembly according to an embodiment of the present invention. In the figure, the same reference numerals as in FIG. is a solar cell provided on the back surface of the rotating drum 2,
Reference numeral 6 denotes a light emitting section disposed on the fixed drum (fixed section) 1 so as to face the solar cell 5 .
次に動作について説明する。Next, the operation will be explained.
このような装置では記録あるいは再生時ミアンブ４と磁
気ヘッド３との間での信号の送受はロータリトランスを
介することなく直接行なわれ、また回転部２の太陽電池
５は固定部１の発光部６からの光を受けて電力を発生さ
せ、これを回転部２のアンプへ供給する。In such a device, during recording or reproduction, signals are transmitted and received directly between the microamb 4 and the magnetic head 3 without going through a rotary transformer. The electric power is generated by receiving light from the rotary unit 2, and the electric power is supplied to the amplifier of the rotating part 2.
このように本実施例では、ヘッドを有する回転ドラムに
増幅器だけでなく太陽電池も搭載し、固定ドラムに発光
部を設けたので、磁気ヘッドと増幅器の距離は短くなり
、また増幅器に直接再生信号を入力でき、さらに増幅器
の出力が低インピーダンスであるため外部からのノイズ
が侵入しにくく、良好な再生信号を得ることができるだ
けでなく、太陽電池により直接増幅器へ電力を供給でき
、これにより記録あるいは再生信号に電源からのノイズ
が入ることはなくなり、かつドラムの構成が簡単になる
。In this way, in this embodiment, not only an amplifier but also a solar cell is mounted on the rotating drum that has the head, and a light emitting section is provided on the fixed drum, so the distance between the magnetic head and the amplifier is shortened, and the reproduced signal can be sent directly to the amplifier. In addition, since the output of the amplifier is low impedance, it is difficult for external noise to enter, and not only can you obtain a good reproduction signal, but also the solar cell can directly supply power to the amplifier, which allows recording or recording. Noise from the power source will not be included in the reproduced signal, and the configuration of the drum can be simplified.
以上のように、この発明によれば、アンプを有する回転
ドラムに該アンプに電力を供給する太陽電池を設け、固
定ドラムに発光部を設けたので、トランスを用いないで
回転ドラムのアンプに電力を供給できる回転ヘッドアセ
ンブリを得ることができる。As described above, according to the present invention, the rotating drum having an amplifier is provided with a solar cell for supplying power to the amplifier, and the fixed drum is provided with a light emitting section, so power is supplied to the amplifier of the rotating drum without using a transformer. It is possible to obtain a rotary head assembly that can supply the following.
第１図は本発明の一実施例による回転ヘッドアセンブリ
を示す断面図、第２図は従来の回転ヘッドアセンブリを
示す斜視図である。
１・・・固定部、２・・・回転部、３・・・磁気ヘッド
、４・・・アンプ、５・・・太陽電池、６・・・発光部
。
なお図中同一符号は同−又は相当部分を示す。FIG. 1 is a sectional view showing a rotating head assembly according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional rotating head assembly. DESCRIPTION OF SYMBOLS 1... Fixed part, 2... Rotating part, 3... Magnetic head, 4... Amplifier, 5... Solar cell, 6... Light emitting part. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
信号またはヘッドからの再生信号を増幅する増幅器と、
該増幅器に電力を供給する太陽電池とを有する回転ドラ
ムと、 上記太陽電池に光を供給する発光部を有する固定ドラム
とを備えたことを特徴とする回転ヘッドアセンブリ。(1) a magnetic head; an amplifier that is directly connected to the magnetic head and amplifies a recording signal or a reproduction signal from the head;
A rotating head assembly comprising: a rotating drum having a solar cell for supplying power to the amplifier; and a stationary drum having a light emitting section for supplying light to the solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16768486A JPS6323202A (en) | 1986-07-15 | 1986-07-15 | Rotary head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16768486A JPS6323202A (en) | 1986-07-15 | 1986-07-15 | Rotary head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6323202A true JPS6323202A (en) | 1988-01-30 |
Family
ID=15854307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16768486A Pending JPS6323202A (en) | 1986-07-15 | 1986-07-15 | Rotary head assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6323202A (en) |
-
1986
- 1986-07-15 JP JP16768486A patent/JPS6323202A/en active Pending
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