JPS59127203A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS59127203A
JPS59127203A JP23295882A JP23295882A JPS59127203A JP S59127203 A JPS59127203 A JP S59127203A JP 23295882 A JP23295882 A JP 23295882A JP 23295882 A JP23295882 A JP 23295882A JP S59127203 A JPS59127203 A JP S59127203A
Authority
JP
Japan
Prior art keywords
recording
signal
heads
reproduction
audio signal
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
Application number
JP23295882A
Other languages
Japanese (ja)
Inventor
Tadao Fujita
藤田 忠男
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP23295882A priority Critical patent/JPS59127203A/en
Publication of JPS59127203A publication Critical patent/JPS59127203A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/92Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/928Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the sound signal being pulse code modulated and recorded in time division multiplex with the modulated video signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To eliminate the time difference between a picture and a sound during reproduction by recording a video and an audio signal in respective divided recording areas of a recording track by recording and reproducing heads, and reproducing the video signal by said heads and the audio signal by heads dedicated to reproduction during the reproduction. CONSTITUTION:The video signal SV is supplied from a terminal 21 selectively to recording and reproducing heads 12A and 12B through a modulating circuit 23 and a signal selecting circuit 24. The audio signal Sa, on the other hand, is supplied from an input terminal 22 selectively to the heads 12A and 12B through an A/D converter 25, time-axis compressing circuit 26, and selecting circuit 28. Then, heads 13A and 13B dedicated to reproduction are provided at positions where they lead the heads 12A and 12B in rotary phase by 270 deg., so a reproduced audio signal SA is obtained from the leading heads 13A and 13B and the reproduced video signal SV is obtained from the trailing heads 12A and 12B. For this purpose, the audio signal is reproduced firstly during the reproduction and adjusted to the normal time axis to obtain the reproduced signal SA having no time difference.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はヘリカルスキャン方式のビデオチープレコーグ
等の回転磁気ヘッド装置を用いた磁気記録再生装置に関
し、特に回転へノドにてオーディオ信号全ビデオ信号と
ともに磁気テープ上の傾斜トランクを介して記録再生す
るようにした磁気記録再生装置に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic recording/reproducing device using a rotating magnetic head device such as a helical scan type video cheap recorder, and particularly relates to a magnetic recording/reproducing device using a rotating magnetic head device such as a helical scan type video recorder. The present invention relates to a magnetic recording and reproducing apparatus that records and reproduces signals together with signals via an inclined trunk on a magnetic tape.

〔背景技術とその問題点〕[Background technology and its problems]

一般ニ、ビデオテープレコーダでは、実時間で対応した
ビデオ信号とオーディオ信号全取扱うので、ビデオ信号
とオーディオ信号とを実時間で同時記録・同時再生すれ
ば再生時に画と音に時間差音生ずることなく自然な再生
状態ケ得ることができる〇 しかし、例えば回転磁気へノド装置を用いたヘリカルス
キャン方式のビデオチープレコーグにおいて、ビデオ信
号とオーディオ信号とを共通の回転へノドにて傾斜トラ
ックに記録する場合には各信号を同時記録することがで
きない。そこで、従来、r、シ、第1図Aに示すように
実時間で対応するビデオ信号Svとオーディオ信号Sa
とについて、上記オーディオ信号Sakデジタル化して
メモリを介して時間軸圧縮し、上記ビデオ信号Svの後
に時間軸圧縮されたオーディオ信号Sacを記録するよ
うにした第2図に示す如きテープンオーマノトが採用さ
れている。なお、第2図において、矢印Xは磁気テープ
の走行方向を示し、また矢印yは回転ヘッドの移動方向
を示し、さらにTvはlフィールド分のビデオ信号Sv
の記録領域を示し、TAは上記ビデオ信号Svに対応す
る時間軸圧縮された1フイ一ルド分のオーディオ信号S
acの記録領域ケ示している0 上記第2図に示したテープフォーマントに従ってビデオ
信号とオーディオ信号とを記録再生すると、再生時には
i1図Bに示すように再生したオーディオ信号S’Ac
’l:メモリにて時間軸伸張して得られる再生オーディ
オ信号sAが直接再生されるビデオ信号Svに対して一
方的に遅れてしまう0上記再生ビデオ信号Svに対する
再生オーディオ信号SAの時間遅れTdは上記時間軸圧
縮比を大きくする程大きくなバ再生時に画と音が時間的
にずれて不自然な再生状態となってしまう。
In general, video tape recorders handle all video and audio signals in real time, so if you record and play back video and audio signals simultaneously in real time, there will be no time difference between the picture and sound during playback. A natural reproduction state can be obtained. However, for example, in helical scan type video cheap recording using a rotating magnetic helix device, the video signal and audio signal are recorded on a tilted track using a common rotary helix. In some cases, it is not possible to record each signal simultaneously. Therefore, conventionally, as shown in FIG. 1A, corresponding video signal Sv and audio signal Sa
Regarding this, there is a tape-on-oh manoto as shown in FIG. 2, in which the audio signal Sak is digitized and time-axis compressed via a memory, and the time-axis compressed audio signal Sac is recorded after the video signal Sv. It has been adopted. In FIG. 2, arrow X indicates the running direction of the magnetic tape, arrow y indicates the moving direction of the rotary head, and Tv indicates the video signal Sv for 1 field.
TA indicates the recording area of one field of time-axis compressed audio signal S corresponding to the video signal Sv.
The recording area of ac is shown.0 When video signals and audio signals are recorded and played back according to the tape format shown in FIG.
'l: The reproduced audio signal sA obtained by time axis expansion in the memory is unilaterally delayed with respect to the directly reproduced video signal Sv. 0 The time delay Td of the reproduced audio signal SA with respect to the reproduced video signal Sv is The larger the time-base compression ratio is, the more the image and sound are temporally shifted during large-scale playback, resulting in an unnatural playback state.

〔発明の目的〕[Purpose of the invention]

そこで、本胤明は上述の如き再生時の画と音の時間差を
無くして楢めて自然な再生状態ケ得ることができる新規
な構成の磁気記録再生装置全提供するものである。
Therefore, the present invention is to provide a magnetic recording and reproducing apparatus with a novel configuration that can eliminate the time difference between picture and sound during reproduction as described above, and can obtain a natural reproduction state.

本発明に係る磁気記録再生装置は、上述の目的を達成す
るために磁気テープのテープ走行方向に対して傾斜した
記録トランクをトレースする記録・再生兼用ヘッドと再
生専用ヘッドとを設けた回転磁気へノド装置を備え、上
記記録トラックを分割した各記録領域に上記記録・再生
兼用ヘッドにてビデオ信号とオーディオ信号を記録し、
再生時に上記記録・再生兼用ヘッドにてビデオ信号を再
生するとともに上記再生専用へノドにてオーディオ信号
全再生することを特徴とするものである。
In order to achieve the above-mentioned object, a magnetic recording/reproducing apparatus according to the present invention provides a rotating magnetic recording/reproducing apparatus equipped with a recording/reproducing head and a reproduction-only head for tracing a recording trunk inclined with respect to the tape running direction of a magnetic tape. The recording device is equipped with a gutter device, and records a video signal and an audio signal in each recording area obtained by dividing the recording track using the recording/playback head;
At the time of reproduction, the video signal is reproduced by the recording/reproducing head, and the entire audio signal is reproduced by the reproduction-only head.

〔実施例〕〔Example〕

以下、本発明に係る磁気記録再生装置の一実施例につい
て図面に従い詳細に説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a magnetic recording and reproducing apparatus according to the present invention will be described in detail below with reference to the drawings.

第3図は本発明の一実施例のテープ走行系を示す模式図
である。
FIG. 3 is a schematic diagram showing a tape running system according to an embodiment of the present invention.

この実施例において、供給側リール1から送り出される
磁気テープ2は、回転磁気ヘッド装置10の回転ドラム
11に約2700に亘りて摺接して図中矢印X方向に定
速走行され、巻取側リール3に巻取られる。上記回転ド
ラム11には、一対の記録再生兼用ヘッド12.A、1
2Bと一対の再生専用ヘッド13A、13Bが配設され
ている。
In this embodiment, the magnetic tape 2 sent out from the supply reel 1 is in sliding contact with the rotating drum 11 of the rotating magnetic head device 10 for about 2,700 degrees and is run at a constant speed in the direction of the arrow X in the figure. It is wound up in 3. The rotating drum 11 has a pair of recording and reproducing heads 12. A.1
2B and a pair of read-only heads 13A and 13B are provided.

上記一対の記録再生兼用へノド12A、’12Bは、互
いに回転位相が180°ずれた位置に配置されている。
The pair of recording/reproducing throats 12A and '12B are arranged at positions whose rotational phases are shifted by 180 degrees from each other.

また、上記一対の再生専用へノド13A、13Bも互い
に回転位相が180°ずれた位置1配置されている。な
お、上記一対の再生専用へノド13A、13Bは、変速
再生時におけるトラッキング制御を行なうために、それ
そわ電気機械変換素子、例えばバイモルフ板14に、1
4B土に設置され、回転高さ位置を偏移制御てきるよう
にしである。さらに、第1の再生専用へノド13Aは、
第1の記録再生兼用ヘッド12Aに対して回転位相が2
700進んだ位置に配置されている。
Further, the pair of reproduction-only grooves 13A and 13B are also arranged at a position 1 with rotational phases shifted by 180° from each other. Note that the pair of reproduction-only grooves 13A and 13B are connected to an electromechanical transducer, for example, the bimorph plate 14, in order to perform tracking control during variable-speed reproduction.
It is installed on the 4B soil, and the rotation height position can be controlled with deviation. Furthermore, the first reproduction-only door 13A is
The rotational phase is 2 with respect to the first recording/reproducing head 12A.
It is located 700 points ahead.

さらにまた、第2の再生専用ヘッド13Bは、第2の記
録再生兼用ヘッド12Bに対して回転位相が270°進
んだ位置に配置さねている。上記一対の記録再生兼用へ
ノド12A、12Bと一対の再生専用ヘッド13A、1
3Bが配設ざねた回転ディ・スフ11は、図中矢印X方
向に高速で定速回転される。
Furthermore, the second reproduction-only head 13B is arranged at a position 270 degrees ahead of the rotational phase with respect to the second recording-reproduction head 12B. The above-mentioned pair of recording/reproducing heads 12A, 12B and a pair of reproduction-only heads 13A, 1
The rotating disc 11, which is indicated by 3B, is rotated at a high speed and at a constant speed in the direction of the arrow X in the figure.

次に、第4図はこの実施例の記録回路系を示すグロック
図である。
Next, FIG. 4 is a block diagram showing the recording circuit system of this embodiment.

第4図において、第1の信号入力端子21にはビデオ信
号Svが供給され、第2の信号入力端子22にはオーデ
ィオ信号Saが供給される。なお、上記ビデオ信号Sv
とオーディオ信号Saは実時間で対応した同時信号であ
る。
In FIG. 4, a first signal input terminal 21 is supplied with a video signal Sv, and a second signal input terminal 22 is supplied with an audio signal Sa. Note that the video signal Sv
and audio signal Sa are simultaneous signals that correspond in real time.

そして、上記ビデオ信号Svはilの信号入力端子21
から第1の変調回路23に供給さね、この変調回路23
よシ記録信号として第1の信号選択回路24を介して上
記一対の記録再生兼用へノド12A、12Bに選択的に
供給される。
The video signal Sv is transmitted to the signal input terminal 21 of il.
This modulation circuit 23 is supplied to the first modulation circuit 23 from
The signal is then selectively supplied as a recording signal to the pair of recording/reproducing nodes 12A and 12B via the first signal selection circuit 24.

また、上記オーディオ信号Saは、第2の信号入力端子
22からアナログデジタルA/D変換器25に供給され
、このA/D変換器25にてデジタル化され時間軸圧縮
回路26に供給される。上記時間軸圧縮回路26は、デ
ジタルメモリにて構成されておシ、書込まれたデジタル
オーディオ信号を書込みクロックニジも高速な読出しク
ロックにて読出すことによフ時間軸圧縮を行なう。なお
、この実施例において、上記時間軸圧縮回路26の時間
軸圧縮比は2:1にしである。そして、上記時間軸圧縮
されたオーディオ信号Sac は、第27 の変調回路2仔に供給され、この変調回路2Bから記録
信号として第2の信号選択回路21を介して上記一対の
記録再生兼用ヘッド12 A y 12 Bに選択的に
供給される。
Further, the audio signal Sa is supplied from the second signal input terminal 22 to an analog-to-digital A/D converter 25, digitized by the A/D converter 25, and supplied to a time axis compression circuit 26. The time axis compression circuit 26 is constituted by a digital memory and performs time axis compression by reading out the written digital audio signal using a read clock which is faster than the write clock. In this embodiment, the time axis compression ratio of the time axis compression circuit 26 is set to 2:1. Then, the time-axis compressed audio signal Sac is supplied to the 27th modulation circuit 2B, and from this modulation circuit 2B, it is sent as a recording signal to the pair of recording/reproducing heads 12 via the second signal selection circuit 21. It is selectively supplied to A y 12 B.

ここで、上記第1の信号選択回路24と第2の信号選択
回路2?は、上記一対の記録再生兼用へノド12A、1
2B’i−フィールド期間毎に互いに他方金選択するよ
うに連動制御されている。
Here, the first signal selection circuit 24 and the second signal selection circuit 2? The above-mentioned pair of recording/reproducing joints 12A, 1
Interlocking control is performed so that each of the two selects the other in every 2B'i-field period.

上述の如き構成の記録回路系は、上述の第1図Aに示し
たのと同様な動作を行って、一対の記録再生兼用へノド
12A、12Bにて各フィールド毎に上記第2図のテー
プンオーマントに従った記録ケ行なう。
The recording circuit system configured as described above performs the same operation as shown in FIG. 1A above, and records the tape shown in FIG. Record according to the instructions given.

そして、この実施例では、上述の如く一対の記録再生兼
用へノド12A、12Bニジも回転位相が2700進ん
だ位置に一対の再生専用ヘッド13A、v3B6設けで
あるので、再生時には第5図に示すように先行する上記
再生専用へノド13A、13Bから再生オーディオ信号
5A(z得て後行する上記記録再生兼用へノド12A、
12Bから再生ビデオ信号Svを得ることができる。従
って、再生時には第6図に示すように記録時に時間軸圧
縮されたオーディオ信号5Acffi先に再生してメモ
リに書込み、時間軸伸張を行って正規の時間軸に戻すこ
とにLシ、時間差の無い再生ビデオ信号Svと再生オー
ディオ信号SA?、得ることができ、極めて自然な再生
を行なうことができる〇第7図は、この実施例における
再生回路系を示すグロック図である。
In this embodiment, as mentioned above, the pair of recording/reproducing heads 12A, 12B is also provided with a pair of reproduction-only heads 13A, v3B6 at a position where the rotational phase is advanced by 2700. As shown in FIG.
A reproduced video signal Sv can be obtained from 12B. Therefore, during playback, as shown in Figure 6, the audio signal 5Acffi, which was time-axis compressed during recording, is first played back and written to the memory, and then the time axis is expanded to return to the normal time axis, so there is no time difference. Playback video signal Sv and playback audio signal SA? Figure 7 is a block diagram showing the reproduction circuit system in this embodiment.

第7図において、上記一対の再生専用へノド13A、1
3Bにて得られる各再生信号は、第1の信号選択回路3
1を介して第1の再生増幅器32に選択的に供給される
。ここで、この実施例において上記再生専用へノド13
A、13Bは、そねそれバイモルフ板14A、14B上
に載置されて2り、変速再生時にはその回転高さ位置が
偏移制御されビデオ信号を再生し、ノーマル再生時には
上述の如くオーディオ信号を再生する。
In FIG. 7, the pair of playback ports 13A, 1
Each reproduced signal obtained at 3B is transmitted to the first signal selection circuit 3
1 to the first regenerative amplifier 32. Here, in this embodiment, the reproduction-only access port 13 is
A and 13B are respectively placed on bimorph plates 14A and 14B, and during variable speed playback, their rotational height positions are shifted and controlled to play back video signals, and during normal playback, they play audio signals as described above. Reproduce.

そして、上記第lの再生増幅器32の出力側は、第1の
モード選択回路33ケブrして第1の信号復調回路34
2第3の信号復調回路50とに選択的に接続されるよう
になっている。
The output side of the l-th regenerative amplifier 32 is connected to a first mode selection circuit 33 and a first signal demodulation circuit 34.
2 and a third signal demodulation circuit 50.

上記第lの信号復調回路34はノーマル再生時に上記再
生専用ヘッド13.A、13BKよる再生信号を復調し
、得られるオーディオ信号SAc を時間軸伸張回路3
5に供給する。上記時間軸伸張回路35にて時間軸伸張
されたオーディオ信号は、デジタル・アナログD/A変
換器36にてアナログ化して再生オーディオ信号sAと
して第1の信号出力端子37たら出力される。
The l-th signal demodulation circuit 34 is connected to the read-only head 13 during normal playback. Demodulates the reproduced signal from A and 13BK and sends the resulting audio signal SAc to the time axis expansion circuit 3.
Supply to 5. The audio signal time-base-expanded by the time-base expansion circuit 35 is converted into an analog signal by a digital-to-analog D/A converter 36 and output as a reproduced audio signal sA to a first signal output terminal 37.

また、上記一対の記録再生兼用へノド12A。Further, the pair of recording/reproducing throats 12A mentioned above.

12Bにて得られる各再生信号は、第2 の信号選択回
路41を介して第2の再生増幅器42に各ノイルド毎に
選択的に供給され、上記第2の再生増幅器42から第2
の信号復調回路43に供給される。そして、ノーマル再
生時には、上記第2の信号復調回路43にて上記記録再
生兼用ヘッド12A、12Bの再生信号を復調すること
にょシ得らねる再生ビデオ信号Svが第2のモード選択
回路44ケ介して第2の信号出力端子45から出力され
る。
Each reproduction signal obtained at 12B is selectively supplied to a second regenerative amplifier 42 for each node via a second signal selection circuit 41, and from the second regenerative amplifier 42 to a second regenerative amplifier 42.
The signal is supplied to the signal demodulation circuit 43 of. During normal playback, the playback video signal Sv, which cannot be obtained by demodulating the playback signals of the recording and playback heads 12A and 12B in the second signal demodulation circuit 43, is transmitted through the second mode selection circuit 44. and is output from the second signal output terminal 45.

イーマル再生時に、上記第■の信号出力端子37から出
力される再生オーディオ信号sAと第2の信号出力端子
45から出力される再生オーディオ信号Svは、上述の
如く時間差の無匹゛互いに芙時間に対応したものとなっ
ている。
During optical reproduction, the reproduced audio signal sA outputted from the first signal output terminal 37 and the reproduced audio signal Sv outputted from the second signal output terminal 45 have no time difference as described above. It is compatible.

また、変速再生時には、上記一対の再生専用へ7ド13
A、13Bk設置した各バイモルフ板14A、14Bk
駆動することにょシトランキング制御を行ない、第3の
信号復調回路50によシ谷再生専用へノド13に、13
Bの再生信号を復調して再生ビデオ信号盆得る。そして
、この再生ビデオ信号が第2のモード選択回路44全ヅ
rして第2の信号出力端子45から出力される。
Also, during variable speed playback, the above pair of playback-only 7 dos 13
Each bimorph board 14A, 14Bk installed A, 13Bk
Trunking control is performed during the drive, and the third signal demodulation circuit 50 is used for the valley reproduction only.
The reproduced signal of B is demodulated to obtain a reproduced video signal tray. Then, this reproduced video signal is passed through the second mode selection circuit 44 and outputted from the second signal output terminal 45.

なお、上述の実施例では、オーディオ信号をデジタル記
録したが、アナログ記録であっても良い。
Note that in the above embodiment, the audio signal was digitally recorded, but analog recording may also be used.

また、時間軸圧縮したオ−ディオ信号は、記録トランク
の複数の領域に分割して記録するようにしても良い。
Further, the time-base compressed audio signal may be divided and recorded in a plurality of areas of the recording trunk.

さらに、再生専用ヘノド13A、13Bは、記録再生兼
用へノド12A、12Bよフもキャンプ幅を狭くして、
再生能力を高めるようにしても良いO 〔発明の効果〕 上述の実施例の説明から明らかなように、本発明に係る
磁気記録再生装置によりは、ビデオ信号とオーディオ信
号と盆共通の記録トラック劣ブrして記録・再生して、
時間差の無い極めて自然な再生状態を得ることができる
。また、記録時にビデオ信号とオーディオ信号とを同時
記録しないので、例えばオーディオ信号にエコー効果を
付加する等の各種効果処理全各信号に施こすことも可能
になる0
Furthermore, the playback-only ports 13A and 13B have a narrower camp width than the recording and playback ports 12A and 12B.
[Effects of the Invention] As is clear from the description of the embodiments described above, the magnetic recording and reproducing apparatus according to the present invention can improve the recording track deterioration of the video signal, the audio signal, and the common recording track. BR, record and play,
It is possible to obtain an extremely natural reproduction state with no time lag. Also, since the video signal and audio signal are not recorded simultaneously during recording, it is also possible to apply various effects processing to all signals, such as adding an echo effect to the audio signal.

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

第1図Aおよび第1図Bは本発明が適用されるビデオテ
ープレコーダの一般的な記録再生動作ケ説明するための
タイムチャートであシ、第1図Aは記録動作ケ示し、ま
た第1図Bは再生動作を示している。第2図は上記ビデ
オチープレコーグにおけるテープフオーマントケ示す模
式図である。 褐3−図ないし第7図は本発明に係る磁気記録再生装置
の一実施例を示すもので、第3図はテープ走行系の構成
を示す模式図、第4図は記録回路系の摘成勿示すノロツ
ク図、第5図は再生動作時の再生専用へノドと記録再生
兼用へノドの位置関係ケ示す模式図、第6図は再生動作
ケ説明するためのタイムチャート、さらに、第7図は再
生回路系の購成倉示すグロック図である。 2・・・磁気テープ 10・・・回転磁気ヘッド装置 11・・・回転ディスク 12A、12B・・・記録再生兼用ヘッド13A、13
B・・・再生専用へノド 26・・・時間軸圧縮回路 35・・・時間軸伸張回路 第1図A 第1図B 第2図 第3図
1A and 1B are time charts for explaining the general recording and reproducing operation of a video tape recorder to which the present invention is applied; FIG. 1A shows the recording operation; Figure B shows the playback operation. FIG. 2 is a schematic diagram showing the tape formant in the video recording system. Figures 3 to 7 show an embodiment of the magnetic recording and reproducing apparatus according to the present invention, with Figure 3 being a schematic diagram showing the configuration of the tape running system, and Figure 4 being a schematic diagram of the recording circuit system. Of course, FIG. 5 is a schematic diagram showing the positional relationship between the reproducing-only connector and the recording/reproducing connector during reproducing operation, FIG. 6 is a time chart for explaining the reproducing operation, and FIG. This is a Glock diagram showing the purchase store of the reproduction circuit system. 2...Magnetic tape 10...Rotating magnetic head device 11...Rotating disks 12A, 12B...Recording/reproducing heads 13A, 13
B...Reproduction-only access 26...Time axis compression circuit 35...Time axis expansion circuit Fig. 1A Fig. 1B Fig. 2 Fig. 3

Claims (1)

【特許請求の範囲】[Claims] 磁気テープのテープ走行方向に対して傾斜した記録ト2
ククをトレースする記録・再生兼用へノドと再生専用ヘ
ッドと2設けた回転磁気ヘッド装置を備え、上記記録ト
ランクを分割した各記録領域に上記記録・再生兼用へノ
ドにてビデオ信号とオーディオ信号を記録し、再生時に
上記記録・再生兼用ヘッドにてビデオ信号を再生すると
ともに上記再生専用へノドにてオーディオ信号を再生す
ること全特徴とする磁気記録再生装置。
Recording tray 2 inclined with respect to the tape running direction of the magnetic tape
Equipped with two rotary magnetic head devices, a recording/playback nodal for tracing the area and a playback-only head, the recording/playback nozzle sends video signals and audio signals to each recording area divided into the recording trunk. A magnetic recording/reproducing apparatus having the following features: during recording and reproduction, the recording/reproducing head is used to reproduce a video signal, and the reproduction-only head is used to reproduce an audio signal.
JP23295882A 1982-12-30 1982-12-30 Magnetic recording and reproducing device Pending JPS59127203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23295882A JPS59127203A (en) 1982-12-30 1982-12-30 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23295882A JPS59127203A (en) 1982-12-30 1982-12-30 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS59127203A true JPS59127203A (en) 1984-07-23

Family

ID=16947528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23295882A Pending JPS59127203A (en) 1982-12-30 1982-12-30 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS59127203A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267703A (en) * 1985-09-20 1987-03-27 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS62175907A (en) * 1986-01-29 1987-08-01 Sony Corp Video tape recorder
JPS62183004A (en) * 1985-08-16 1987-08-11 Sony Corp Video tape recorder
JPS62275302A (en) * 1986-05-23 1987-11-30 Sony Corp Magnetic recording and reproducing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62183004A (en) * 1985-08-16 1987-08-11 Sony Corp Video tape recorder
JPS6267703A (en) * 1985-09-20 1987-03-27 Matsushita Electric Ind Co Ltd Magnetic recording and reproducing device
JPS62175907A (en) * 1986-01-29 1987-08-01 Sony Corp Video tape recorder
JPS62275302A (en) * 1986-05-23 1987-11-30 Sony Corp Magnetic recording and reproducing device

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