JPS6047586A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS6047586A
JPS6047586A JP58156645A JP15664583A JPS6047586A JP S6047586 A JPS6047586 A JP S6047586A JP 58156645 A JP58156645 A JP 58156645A JP 15664583 A JP15664583 A JP 15664583A JP S6047586 A JPS6047586 A JP S6047586A
Authority
JP
Japan
Prior art keywords
signal
switch
delayed
output
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.)
Granted
Application number
JP58156645A
Other languages
Japanese (ja)
Other versions
JPH058635B2 (en
Inventor
Takashi Misaki
見崎 隆志
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58156645A priority Critical patent/JPS6047586A/en
Publication of JPS6047586A publication Critical patent/JPS6047586A/en
Publication of JPH058635B2 publication Critical patent/JPH058635B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To eliminate skew distortion in field still reproduction and obtain a normal signal by providing a switch for selecting a 1H (one horizontal scanning period)-delayed color signal or color signal and a switch for selecting the sum reproducing signal of the color signal and luminance signal or 0.5H-delayed signal. CONSTITUTION:Two heads L1 and L2 having the same azimuth angle are arranged at a specific leading or lagging angle to a division of 180 deg., and the luminance and color signal of this reproducing signal are demodulated by an Y signal demodulator 3 and a C signal demodulator 4. The demodulated chromaticity signal is applied to a 1H delay line 5 and the 1st switch 6 selects the delayed signal or undelayed signal. This selected signal is added to the luminance signal at an addition point 16 to apply the delayed signal to a 0.5H delay line 7, and the 2nd switch 8 selects the delayed or undelayed signal. This switch 6 is controlled with the output of a logical circuit 13, and the switch 8 is controlled with the output of a jumping circuit 10 which is obtained by processing the output of the addition point 16, eliminating skew distortion in reproduction.

Description

【発明の詳細な説明】 産業上の利用分野 本発明のヘリカルスキ1?ン甲でフィールトスデル機能
を有する磁気記録再生装置に関する。
[Detailed Description of the Invention] Industrial Field of Application Helical Skills of the Invention 1? This invention relates to a magnetic recording and reproducing device having a field-sdell function.

従来例の構成とその問題点 従来、水平同期並び条件を満足しないテープフォーマッ
ト、例えば、VH8+7)PAL、SFCAMの長時間
フォーマット(8時間記録モード)においてはフィール
ドスチル、ス[l−再生時のビデオ信号はスキュー歪を
有し、色順列の乱れたものとなり、正規のPAl−信号
、SFCAM信号どす−2− ることができないのが環状である。
Conventional structure and problems Conventionally, in tape formats that do not satisfy horizontal synchronization conditions, such as VH8+7) PAL and SFCAM long formats (8 hour recording mode), field still, video during playback The signal has skew distortion and the color order is disordered, and the annular signal cannot be used as a normal PAl signal or SFCAM signal.

発明の目的 本発明は水平開1111並び条件を満足しないテープフ
ォーマットであってもフィールドスチル、スロー再生時
にスキ:L−歪みのない、色順列の乱れのない正規の信
号が得られる磁気記録再生装置を提供1−ることを目的
とする。
OBJECTS OF THE INVENTION The present invention provides a magnetic recording and reproducing device that can obtain regular signals without distortion and color permutation during field still and slow playback even with tape formats that do not satisfy the horizontal open 1111 alignment condition. The purpose is to provide 1-

発明の構成 本発明の磁気記録再生装置は、互いに同じアジマスを持
つ2個のヘッドを1800の割出しに対して所定角度の
進み角あるいは遅れ角で配殴し、この2個のヘッドによ
る再生信号から輝度信号復調と色度4Ei号復調し、色
度信号またはこの色度信号を1H遅延した信号の一方を
第1のスイッチで選択して前記輝度信号とを加算し、こ
の加算信号またはこの加算信号を0,5H遅延した信号
の一方を第2のスイッチで選択して出力するよう構成づ
ると共に、第2のスイッチは前記加算信号のスキュー信
号の有無を検出して切換えを実行し、第1のスイッチは
スキュー補正信号を1/2分周した信−3− 号に基づいて切換えを実行するにう構成したことを特徴
どする。
Structure of the Invention The magnetic recording/reproducing apparatus of the present invention has two heads having the same azimuth arranged at a predetermined lead angle or delay angle with respect to an index of 1800, and reproduces signals reproduced by these two heads. The luminance signal is demodulated and the chromaticity 4Ei code is demodulated from the chromaticity signal, and either the chromaticity signal or the signal delayed by 1H of this chromaticity signal is selected by the first switch and added to the luminance signal, and this addition signal or this addition The second switch is configured to select and output one of the signals delayed by 0 and 5H, and the second switch detects the presence or absence of a skew signal in the added signal to execute switching, and The switch is characterized in that it is configured to perform switching based on a signal obtained by dividing the skew correction signal by 1/2.

実施例の説明 以下1本発明の一実施例を図面に基づいて説明する。Description of examples An embodiment of the present invention will be described below with reference to the drawings.

第1図a、bはそれぞれフィールトスデル、スロー再生
を行なうときのヘッド仕様の一例を示す図である。矢印
Aはシリンダ回転方向を表わす。
FIGS. 1a and 1b are diagrams showing examples of head specifications when performing field-to-sdell and slow playback, respectively. Arrow A represents the direction of cylinder rotation.

R+ 、Llは通常記録再生ヘッドで、aの場合にはヘ
ッドR1に近接して進み角αでヘッドL2が配設されて
おり、フィールドスチル、スロー再生時にはヘッドL1
とL2が使用される。なお、第1図においてアルファベ
ットのR,1,、はそれぞれアジマスの傾きの方向が右
、左の場合を表わしている。またαはテレビジョン方式
の水平同期信号周期の1.25Hに選ばれている。
R+ and Ll are normal recording and reproducing heads, and in the case of a, head L2 is arranged close to head R1 at an advance angle α, and during field still and slow playback, head L1 is used.
and L2 are used. In FIG. 1, the letters R, 1, represent cases where the direction of azimuth inclination is to the right or left, respectively. Further, α is selected to be 1.25H, which is the period of the horizontal synchronizing signal of the television system.

第2図はフィールドスチル再生時のヘッド軌跡を示す。FIG. 2 shows the head trajectory during field still playback.

このパターンは、隣接トラックとの水平同期並びずれは
0.251−1となりP A l−信号、SECAM信
号での色配列状態も示1ノでいる。これは、−4− V l−I S規格に於ける長時間化フォーマットパタ
ーンを示している。
In this pattern, the horizontal synchronization misalignment with the adjacent track is 0.251-1, and the color arrangement state in the PA l- signal and SECAM signal is also 1. This indicates a long format pattern in the -4-Vl-IS standard.

第3図は第1図aのヘッドL1.L2が第2図の軌跡を
トレースして得られ4再生信号を処理する回路の構成を
示ず。ヘッドL1.L2の信号はそれぞれ増幅器1.2
を介して増幅され輝度信号復調器3でY信号が復調され
、色度信号復調回路4でC信号が復調される。色度信号
復調回路4出力のC信号は1H遅延線5を介してか、あ
るいはIHi!延線5をバイパスして出力される。スイ
ッチ6はこれを選択するスイッチで、スイッチ6の出力
信号は加算点16で輝度信号復調器3出力のY信号と加
算されて出力される。加算点16の出力信号は0.5H
遅延線7を介してか、あるいは0.5H遅延線7をバイ
パスして出力されるる。スイッチ8はこれを選択するス
イッチである。前記0.5H遅延線7はスチル時の水平
同期信号の周期の連続性を補正するためのものでスキュ
ー補正を行なっている。PAI−信号、SECAM信号
は一種の線順次方式で信号が伝送されており、B−Y、
R−−5− Y、R−Yの順列が乱れるとテレビ画面上での色再生は
不安定となる。前記11」遅延線5はスチル再生時の色
信号の1記の色順列を補正するためのものである。
FIG. 3 shows the head L1 of FIG. 1a. The configuration of a circuit for processing the 4 reproduced signal obtained by tracing the locus of L2 in FIG. 2 is not shown. Head L1. The L2 signals are connected to amplifiers 1 and 2, respectively.
A luminance signal demodulator 3 demodulates the Y signal, and a chromaticity signal demodulator 4 demodulates the C signal. The C signal output from the chromaticity signal demodulation circuit 4 is sent via the 1H delay line 5 or IHi! It is output bypassing the wire extension 5. The switch 6 is a switch for selecting this, and the output signal of the switch 6 is added to the Y signal of the output of the luminance signal demodulator 3 at an addition point 16 and output. The output signal of addition point 16 is 0.5H
It is output via the delay line 7 or by bypassing the 0.5H delay line 7. Switch 8 is a switch for selecting this. The 0.5H delay line 7 is for correcting the continuity of the period of the horizontal synchronizing signal during stilling, and performs skew correction. The PAI-signal and SECAM signal are transmitted using a kind of line-sequential method, and B-Y,
R--5- If the permutation of Y and R-Y is disrupted, color reproduction on the television screen will become unstable. The 11" delay line 5 is for correcting the color permutation of color signals during still reproduction.

なお、前記スイッチ6.8は次のようにして切換えられ
ている。ジャンピング回路10は、水平分離回路9を介
した前記加算点1Gの信号からO: 51−1スキコ一
成分を検出してスイッチ8を制御し、スキュー補正を行
なう。一方、ジャンピング回路10の出力信号〔第4図
a〕は積分回路11、波形整形回路12を介して、チャ
ツタリング成分が除去され論理回路13に入る。この論
理回路13は、波形整形回路12の出力信@(第4図b
〕とへッドスイッヂングパルス〔第4図C〕を入力して
論理処理を行なって第4図dの信号を出力し、色順列を
補正するためにスイッチ6を制御する。
Note that the switch 6.8 is switched in the following manner. The jumping circuit 10 detects the O: 51-1 skew component from the signal of the addition point 1G via the horizontal separation circuit 9, controls the switch 8, and performs skew correction. On the other hand, the output signal of the jumping circuit 10 [FIG. 4a] passes through an integrating circuit 11 and a waveform shaping circuit 12 to remove chattering components and enters a logic circuit 13. This logic circuit 13 receives the output signal of the waveform shaping circuit 12 (Fig. 4b).
] and a head switching pulse (FIG. 4C) are input, logic processing is performed, and the signal shown in FIG. 4D is outputted to control the switch 6 to correct the color permutation.

このようこしてスイッチ6.8を切換えることによって
、スイッチ8出力の再生ビデオ出力はスキュー色順列の
問題のない正常な信号となる。
By switching the switch 6.8 in this way, the reproduced video output from the switch 8 output becomes a normal signal without the problem of skewed color permutation.

第3図では、論理回路13の出力信号でスイッチ−6− 6が切換えるJ:う構成したが、ヘッドL2はヘッドR
1に対して1.251−(の進み角で配設されているた
め、第3図に破線で示すように波形整形回路12の出力
をフリップ70ツブ14によって 1/2分周した信号
で切換えても同様の結果が得られる。
In FIG. 3, the output signal of the logic circuit 13 is used to switch the switch 6-6.
1, the output of the waveform shaping circuit 12 is switched by the signal whose frequency is divided by 1/2 by the flip 70 knob 14, as shown by the broken line in Fig. 3. Similar results can be obtained.

回路構成を一段と簡単なものにできる。The circuit configuration can be made even simpler.

上記実施例において、ヘッドL2はヘッドR1に対して
1.25 Hの進み角αで配設されていたが、この進み
角αは1.25Hに限定されるものではなく、(2n 
+ 1 +0.25 ) @、但し、n=o、1゜2.
3・・・の整数であればよい。また、ヘッドL2は第1
図すのようにヘッドR1に対して0.75Hの遅れ角β
で配設してもよい。更にこの遅れ角βは(2n −1−
0,25) l−(と表わすことができる。
In the above embodiment, the head L2 was arranged at an advance angle α of 1.25H with respect to the head R1, but this advance angle α is not limited to 1.25H;
+1 +0.25) @, however, n=o, 1°2.
It suffices if it is an integer of 3.... Further, the head L2 is the first
As shown in the figure, the delay angle β is 0.75H with respect to the head R1.
It may be placed in Furthermore, this delay angle β is (2n −1−
0,25) l-(.

上記実施例では通常記録再生用ヘッドL2を特殊再生用
に流用したが、これはヘッドL1とL2とは別に特殊再
生用の2つのヘッドを設けて4ヘツド構成としてもよい
。ただ特殊再生用ヘッドL1.L2の取付角度は、18
00の割出しに対しα、βのずれになるようにすればよ
い。
In the above embodiment, the normal recording/reproducing head L2 is used for special reproduction, but this may be configured as a four-head configuration by providing two heads for special reproduction in addition to the heads L1 and L2. However, the special playback head L1. The mounting angle of L2 is 18
What is necessary is to make the deviations α and β relative to the index of 00.

−7− 上記実施例では特殊再生用に左アジマスのヘッドL2を
追加して構成したが、これは右アジマスのヘッドR2を
ヘッド1−1 に近接して進み角αまたは遅れ角βで配
設してヘッドR1とR2の組合せによってスチル、スロ
ー再生を行っても同様の効宋が得られる。
-7- In the above embodiment, the left azimuth head L2 was added for special reproduction, but in this case, the right azimuth head R2 was arranged close to the head 1-1 at an advance angle α or a delay angle β. Similar effects can be obtained by performing still and slow playback using a combination of heads R1 and R2.

発明の詳細 な説明のように本発明の磁気記録再生装置によると、フ
ィールドスチル、スロー再生時のビデオ出力信号が、ス
キゴー歪みのない、色順列の乱れのない正規のPAL信
号あるいは、SFCAM信号となるものである。また(
2n + 1 + 0.25 )1」の進み角あるいは
(2n −1−0,25) Hの遅れ角で2つのヘッド
を配設したため、遅延線の切換えスイッチ発生回路の構
成が簡単になるものである。
As described in the detailed description of the invention, according to the magnetic recording and reproducing apparatus of the present invention, the video output signal during field still and slow playback can be a regular PAL signal or SFCAM signal without any distortion or color permutation. It is what it is. Also(
Since two heads are arranged with a lead angle of 2n + 1 + 0.25)1" or a delay angle of (2n -1-0,25)H, the configuration of the delay line changeover switch generation circuit is simplified. It is.

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

図面は本発明の一実施例を示し、第1図a、bはヘッド
仕様を示すシリンダー構成図、第2図はV hl S規
格の長時間化フォーマットに於【プるスブー 8 − ル再生時のパターン図、第3図は再生信号舎外処理回路
の構成図、第4図はそれぞれ第3図のスチル再生時各部
の波形図である。 L+、L2・・・ヘッド、3・・・輝度信号復調器、4
・・・色面信号lI調器、5・・・1日遅延線、6・・
・スイッチ〔第1のスイッチ〕、7・・・0.5H遅延
線、8・・・スイッチ〔第2のスイッチ〕、9・・・水
平分離回路、10・・・ジャンピング回路、11・・・
積分回路、12・・・波形整形回路、13・・・論理回
路、14・・・フリップ70ツブ、C・・・ヘッドスイ
ッチングパルス 代理人 森 本 義 弘 −〇 − 第1図 −524− 第4図 1同期
The drawings show an embodiment of the present invention. Figures 1a and b are cylinder configuration diagrams showing the head specifications, and Figure 2 is a cylinder configuration diagram showing the head specifications. FIG. 3 is a block diagram of a reproduced signal external processing circuit, and FIG. 4 is a waveform diagram of various parts during still reproduction of FIG. 3. L+, L2...head, 3...luminance signal demodulator, 4
...Color plane signal lI adjustment, 5...1 day delay line, 6...
・Switch [first switch], 7... 0.5H delay line, 8... switch [second switch], 9... horizontal separation circuit, 10... jumping circuit, 11...
Integrating circuit, 12...Waveform shaping circuit, 13...Logic circuit, 14...Flip 70 knob, C...Head switching pulse agent Yoshihiro Morimoto-〇--Figure 1-524-4 Figure 1 Synchronization

Claims (1)

【特許請求の範囲】 1、互いに同じアジマスを持つ2111aのヘッドを1
800の割出しに対して所定角度の進み角(2n + 
1 +0.25 > 1−1 (但し、nは零を含む整
数、Hはテレビジョン方式によって決まる水平周期)ま
たは遅れ角(2n −1−0,25)Hで配設し、この
2個のヘッドによる再生信号から輝度信号復調と色度信
号復調し、色度信号またはこの色度信号を1H遅延した
信号の一方を第1のスイッチで選択して前記輝度信号と
を加算し、この加算信号またはこの加算信号を0 、5
1−1遅延した信号の一方を第2のスイッチで選択して
出力するよう構成すると共に、第2のスイッチは前記加
算信号のスキュー信号の有無を検出して切換えを実行し
、第1のスイッチはスキュー補正信号の1/2周期に同
期した信号に基づいて切換え−1− を実行するよう構成した磁気記録再生装置。 2、第1のスイッチを、スキュー補正信号とヘッドスイ
ッチングパルスとの論FI+処理信¥1で切換えるよう
構成したことを特徴とする特許請求の範囲第1項記載の
磁気記録再生装置。 3、第1のスイッチを、スキュー補正信号を1/2分周
回路を介した信号で切換えるJ:う構成したことを特徴
とする特許請求の一囲第1項記載の磁気記録再生装M。
[Claims] 1. The heads of 2111a having the same azimuth are 1.
Advance angle of a predetermined angle (2n +
1 +0.25 > 1-1 (where n is an integer including zero, H is the horizontal period determined by the television system) or a delay angle (2n -1-0,25)H, and these two The luminance signal and chromaticity signal are demodulated from the signal reproduced by the head, and either the chromaticity signal or the signal delayed by 1H of this chromaticity signal is selected by a first switch and added to the luminance signal, and this added signal is generated. Or change this addition signal to 0, 5
A second switch is configured to select and output one of the signals delayed by 1-1, and the second switch detects the presence or absence of a skew signal in the added signal and executes switching, and the second switch is a magnetic recording/reproducing device configured to perform switching -1- based on a signal synchronized with 1/2 period of a skew correction signal. 2. The magnetic recording/reproducing apparatus according to claim 1, wherein the first switch is configured to be switched by the logical FI+processing signal of the skew correction signal and the head switching pulse. 3. The magnetic recording/reproducing device M according to claim 1, wherein the first switch is configured to switch the skew correction signal by a signal passed through a 1/2 frequency dividing circuit.
JP58156645A 1983-08-26 1983-08-26 Magnetic recording and reproducing device Granted JPS6047586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58156645A JPS6047586A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58156645A JPS6047586A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS6047586A true JPS6047586A (en) 1985-03-14
JPH058635B2 JPH058635B2 (en) 1993-02-02

Family

ID=15632184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58156645A Granted JPS6047586A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6047586A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630382A (en) * 1979-08-20 1981-03-26 Matsushita Electric Ind Co Ltd Video signal recording and reproducing device
JPS572177A (en) * 1980-06-04 1982-01-07 Sony Corp Reproducing device of video signal
JPS5713881A (en) * 1980-06-26 1982-01-23 Matsushita Electric Ind Co Ltd Recording and reproducing device for video signal
JPS5739677A (en) * 1980-08-20 1982-03-04 Sony Corp Reproducing device for video signal
JPS5967072U (en) * 1982-10-26 1984-05-07 三菱電機株式会社 Video signal recording and playback device
JPS59153393A (en) * 1983-02-21 1984-09-01 Mitsubishi Electric Corp Video signal recording and reproducing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630382A (en) * 1979-08-20 1981-03-26 Matsushita Electric Ind Co Ltd Video signal recording and reproducing device
JPS572177A (en) * 1980-06-04 1982-01-07 Sony Corp Reproducing device of video signal
JPS5713881A (en) * 1980-06-26 1982-01-23 Matsushita Electric Ind Co Ltd Recording and reproducing device for video signal
JPS5739677A (en) * 1980-08-20 1982-03-04 Sony Corp Reproducing device for video signal
JPS5967072U (en) * 1982-10-26 1984-05-07 三菱電機株式会社 Video signal recording and playback device
JPS59153393A (en) * 1983-02-21 1984-09-01 Mitsubishi Electric Corp Video signal recording and reproducing device

Also Published As

Publication number Publication date
JPH058635B2 (en) 1993-02-02

Similar Documents

Publication Publication Date Title
US4021852A (en) Signal defect compensation
JPS6047586A (en) Magnetic recording and reproducing device
EP0213207B1 (en) Video signal processor
JPH07123298B2 (en) Magnetic recording / reproducing device
JPS6047587A (en) Magnetic recording and reproducing device
JPH065937B2 (en) Video signal recording method, video signal recording apparatus, and recording / reproducing apparatus
US5235411A (en) Signal processing apparatus with improved alignment switching between color difference signals
JP2648041B2 (en) Video signal processing circuit
JPH0127344Y2 (en)
JPH04363977A (en) Noise reduction circuit
JPS61203792A (en) Video signal processing device
JP3291438B2 (en) VTR
JPS61177888A (en) Video signal processing device
JPH01318386A (en) Yc separation control circuit
JPH0369293A (en) Device for regenerating video signal
JPS59158695A (en) Processing system of line sequential color signal
JPH058634B2 (en)
JPS5918915B2 (en) Color signal processing circuit
JPH0720258B2 (en) Dubbing system
JPH0453156B2 (en)
JPS6229393A (en) Signal conversion circuit
JPS61135289A (en) Pal system video tape recorder
JPH0632465B2 (en) Magnetic recording / playback device
JPH01144883A (en) Dropout correction device
JPS59149488A (en) Sequential processor for color video signal