JPS6047587A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS6047587A
JPS6047587A JP58156646A JP15664683A JPS6047587A JP S6047587 A JPS6047587 A JP S6047587A JP 58156646 A JP58156646 A JP 58156646A JP 15664683 A JP15664683 A JP 15664683A JP S6047587 A JPS6047587 A JP S6047587A
Authority
JP
Japan
Prior art keywords
signal
skew
switch
absence
switch detects
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
JP58156646A
Other languages
Japanese (ja)
Other versions
JPH053798B2 (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 JP58156646A priority Critical patent/JPS6047587A/en
Publication of JPS6047587A publication Critical patent/JPS6047587A/en
Publication of JPH053798B2 publication Critical patent/JPH053798B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

PURPOSE:To process a skew correcting signal and a head switching pulse logically and control switches, and obtain a normal signal in slow reproduction by providing the 1st and the 2nd delay lines and the 1st and the 2nd switches, and detecting the skew of the sum signal of a luminance and a color signal. CONSTITUTION:Two heads L1 and L2 having the same azimuth are arranged at a specific leading or lagging angle to a division of 180 deg., and luminance signals and color signals of reproducing signals of the two heads L1 and L2 are demodulated by a Y signal demodulator 3 and a C signal demodulator 4. The color signal is applied to the 1H delay line 5 and a switch 6 selects the 1H- delayed chromaticity signal or undelayed chromaticity signal to add the selected signal to the luminance signal at an addition point 16. This sum reproducing signal is applied to a 0.5H delay line 7, and a switch 8 selects the reproducing signal or delayed reproducing signal. The switch 8 is controlled with the output of a jumping circuit 10 to detect the skew of the sum signal, and the switch 6 is controlled by the output of a logical circuit 13 to output a normal signal in slow reproduction.

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レン望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 Field of the Invention The present invention relates to a magnetic recording/reproducing device having a helical skillet and 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、■1−ISのPAI−、SEC△M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
ルドスプル、スロー再生時のビデオ信号はスキユー歪を
有し、色順列の乱れたものとなり、正規のPAL信号、
SECAM信号とすることができないのが現状である。
Conventional structure and problems Conventionally, tape formats that do not satisfy horizontal synchronization conditions, such as ■1-IS PAI-, SEC△M long-time format (8-hour recording mode), have field sprue and slow playback. The video signal at the time has skew distortion and the color order is disordered, so it is not a regular PAL signal,
Currently, it is not possible to use it as a SECAM signal.

発明の目的 本発明は水平同期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 2 − −再生時にスキュー歪みのない、色順列の乱れのない正
規の信号が(qられる磁気記録再生装置を提供すること
を目的とする。
OBJECTS OF THE INVENTION The present invention provides a magnetic recording and reproducing apparatus which can produce regular signals without skew distortion and color permutation during playback, even with tape formats that do not satisfy horizontal synchronization conditions. The purpose is to provide

発明の構成 本発明の磁気記録再生装置は、互いにアジマスを持つ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111遅延した信号の一方を第1の
スイッチで選択して前記痘痕信8と加算し、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
正信号とヘッドスイッチングパルスを論理処理した信号
に基づいて切換えを実行するよう構成したことを特徴と
する。
Structure of the Invention The magnetic recording/reproducing device of the present invention has two
The heads are arranged at a predetermined lead angle or delay angle with respect to the index of 1800, and the luminance signal demodulation and chromaticity signal demodulation are performed from the reproduced signals by these two heads, and the chromaticity signal or this chromaticity is A first switch selects one of the signals delayed by 111 and adds it to the pox signal 8, and a second switch selects either this added signal or a signal delayed 0.5H to this added signal. The second switch performs switching by detecting the presence or absence of a skew signal in the addition signal, and the first switch performs switching based on a signal obtained by logically processing the skew correction signal and the head switching pulse. It is characterized by being configured to execute.

実施例の説明 以下、本発明の一実施例を図面に基づいて説明−3− する。Description of examples An embodiment of the present invention will be explained below based on the drawings-3- do.

第1図a、bはイ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.

R1,L−1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1−
1 と12が使用される。なお、第1図においてアルフ
ァベットのR,L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2.2511に選ばれでいる。
R1 and L-1 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 1-
1 and 12 are used. In FIG. 1, the letters R and L represent cases in which the direction of azimuth inclination is to the right and to the left, respectively. Further, α is selected to be 2.2511, 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づ−
0このパターンは、隣接]−ラックとの水平同期並びず
れは、025HとなりPAI−信号、SECAM信号で
の色配列状態も示している。これは、VH8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。
Figure 2 shows the head trajectory during field still playback.
0 This pattern indicates that the horizontal synchronization misalignment with the adjacent rack is 025H, which also indicates the color arrangement state of the PAI- signal and SECAM signal. This shows a long format pattern in the VH8 standard.

第3図は第1図aのヘッドL1.l−2が第2図の軌跡
をトレースして得られる再生信号を処理づ− 4 − る回路の構成を示す。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1!iI調回路4でC(i
号が復調される。色度信号lI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1[1遅延線5をバ
イパスして出力される。スイッチ6はこれが選択される
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4I調器3出力の信号と加算されて出力される。加
算点16の出力信号は0.5日遅延線7を介してか、あ
るいは0.51−I N if rA7をバイパスして
出力される。スイッチ8はこれが選択されるスイッチで
ある。前記0.511遅延1i17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。PAL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−
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1H遅延線5はスチル再生時の色信口の上記
の色順列を補正するためのものである。
FIG. 3 shows head L1 of FIG. 1a. 1-2 shows the configuration of a circuit that processes a reproduced signal obtained by tracing the locus of FIG. 2. Head L1. The L2 signals are each amplified via amplifiers 1.2, the Y signal is demodulated by the luminance signal demodulator 3, and the chromaticity signal 1! In the iI tone circuit 4, C(i
The signal is demodulated. The C signal output from the chromaticity signal lI tone circuit 4 is output via the 1H delay line 5 or by bypassing the 1[1 delay line 5. The switch 6 is selected, and the output signal of the switch 6 is added to the output signal of the luminance signal 4I modulator 3 at the addition point 16 and output. The output signal of summing point 16 is output via 0.5 day delay line 7 or by bypassing 0.51-IN if rA7. Switch 8 is the selected switch. The 0.511 delay 1i17 is for correcting the continuity of the period of the horizontal synchronizing signal during still operation, and performs skew correction. PAL signals and SECAM signals are transmitted using a kind of line sequential method, and B-Y, R-
If the permutation of Y is disrupted, color reproduction on the television screen will become unstable. The 1H delay line 5 is for correcting the above-mentioned color permutation of the color aperture during still reproduction.

−5− 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
した前記加鋒点16の信号から0.5Hのスキュー成分
を検出してスイッチ8を制御しミ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、ヂャッタ
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の出力信号(第4図b〕と
ヘッドスイッチングパルス(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。信号dはヘッドスイ
ッチングパルスCの8フィールド分を1周期として繰り
返している。
-5- Note that the switch 6.8 is switched as follows. The jumping circuit 10 detects a skew component of 0.5H from the signal at the adding point 16 via the horizontal separation circuit 9, controls the switch 8, and performs misskew correction. On the other hand, the output signal of the jumping circuit 10 (Fig. 4a)
is input to the logic circuit 13 via the integrating circuit 11 and the waveform shaping circuit 12, with jitter components removed. This logic circuit 13 inputs the output signal of the waveform shaping circuit 12 (Fig. 4b) and the head switching pulse (Fig. 4C), performs logical processing, outputs the signal shown in Fig. 4d, and performs color permutation. The switch 6 is controlled to correct the signal d.The signal d repeats eight fields of the head switching pulse C as one cycle.

このようにしてスイッチ6.8を切換えることによって
、スイッチ8出力の再生のビデオ出ノ〕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 manner, the reproduced video output of the switch 8 output becomes a normal signal without the problem of skewed color permutation.

なお、ファインスロー再生時には、フ戸インスロースタ
ート信@eを更に入力し論理回路13は、信号dを発生
する。この場合、ジャンピング回路−〇 − 10からの信号すも同時に論理回路13に入力されてい
る。第5図はこれらの信号の関係を示し、ファインスロ
ースタート信号eの最低周期は、信号dの周期性(10
フィールド分)どなっている。信号d′はフンフィンス
ロー再生時におレプるテープ移動に伴なうトラック移動
の瞬間時エンベロープの低下を改善するために、1フィ
ールド分だけヘッドをL2からR1に切換え処理を行な
ったときの波形を示す。
Incidentally, during fine-slow playback, a door-in-slow start signal @e is further input, and the logic circuit 13 generates a signal d. In this case, the signal from the jumping circuit -0-10 is also input to the logic circuit 13 at the same time. Figure 5 shows the relationship between these signals, and the lowest period of the fine slow start signal e is the periodicity (10
Field minutes) What's going on? Signal d' is the waveform obtained when the head is switched from L2 to R1 for one field in order to improve the drop in the instantaneous envelope of the track movement caused by the tape movement during slow playback. shows.

上記実施例において、ヘッドL2はヘッドR1に対して
2.251−1の進み角αで配設されていたが、この進
み角αは2.25 Hに限定されるものではなく、(2
n −1−0,25) R1但し、n =0.1.2゜
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1.7511の遅れ
角βで配設してもよい。更に、この遅れ角βは(2n 
−0,25) l−1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 2.251-1 with respect to the head R1, but this advance angle α is not limited to 2.25H;
n -1-0,25) R1 However, n may be an integer of 0.1.2°3, . . . . Further, the head L2 may be arranged with a delay angle β of 1.7511 with respect to the head R1 as shown in FIG. Furthermore, this delay angle β is (2n
-0,25) can be expressed as l-1.

上記実施例では通常記録再生用ヘッド[2を特殊再生用
に流用したが、これはヘッドL1とL2どは別に特殊再
生用の2つのヘッドを設けて4へ−7− ラド構成としてもよい。ただ特殊再/l−用ヘッドL+
 、L−2の取付角度は、1800の割り出しに対しα
、βのずれになるようにすればよい。
In the above embodiment, the normal recording and reproducing head [2 was used for special reproduction, but it is also possible to provide two heads for special reproduction separately from heads L1 and L2, and to have a 4-7-rad configuration. Just special re/l- head L+
, the mounting angle of L-2 is α for the index of 1800
, β.

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L1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果が得られる。
In the above embodiment, the left azimuth head L2 was added for special reproduction, but in this case, the right azimuth head R2 is disposed close to the head L1 at an advance angle α or a delay angle β, and is connected to the head R1. Still by combination of R2. A similar effect can be obtained by performing slow playback.

発明の詳細 な説明のように本発明の磁気記録書/を装置によると、
フィールドスチル、スロー再生時のビデオ出力信号がス
キュー歪のない、色順列の乱れのない正規のP A L
信号あるいは、SFCAM信号となることができる。
According to the detailed description of the invention, the magnetic recording book/apparatus of the present invention includes:
The video output signal during field still and slow playback is a regular PAL without skew distortion and color permutation disorder.
signal or SFCAM signal.

またヘッド11.12は、1」並び条件を満足するパタ
ーン、例えばV l−I S規格の標tII−■フード
のE″A1−信号、SECAM信弓につ伏目も、使用す
ることができる。このとき゛のスキ1−補正には0.2
511の遅延線が必要どなる。
The heads 11 and 12 can also use a pattern that satisfies the 1'' alignment condition, for example, the E''A1-signal of the Vl-IS standard mark tII-■ hood, and the SECAM bow with closed eyes. In this case, the gap 1-correction is 0.2
511 delay line is required.

−8−-8-

【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,1)はヘッ
ド仕様を示すシリンダー構成図、第2図はV l−I 
S規格の長時間フォーマツ1〜に於けるスチル再生時の
パターン図、第3図は再生信号M処理回路の構成図、第
4図と第5図はそれぞれ第3図のスチル,スロー再生時
の各部波形図である。 Ll.l−2・・・ヘッド、3・・・輝痕信号復調器、
4・・・色度信号復調器、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、C・・・ヘッドスイッチングパルス 代理人 森 本 義 弘 一〇一 第1図 第3図 ε 528− 第4図
The drawings show one embodiment of the present invention, FIG. 1a, 1) is a cylinder configuration diagram showing the head specifications, and FIG.
A pattern diagram during still playback in S standard long-time formats 1~, Figure 3 is a configuration diagram of the reproduced signal M processing circuit, Figures 4 and 5 are the still of Figure 3, and during slow playback, respectively. It is a waveform diagram of each part. Ll. l-2... Head, 3... Bright spot signal demodulator,
4... Chromaticity signal demodulator, 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, C... Head switching pulse agent Yoshihiro Morimoto 01 Figure 1 Figure 3 ε 528- Figure 4

Claims (1)

【特許請求の範囲】 1、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
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1
H遅延した信号の一方を第1のスイッチで選択して前納
輝度信号と加算し、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りの有無を検出して
切換えを実行し、第1のスイッチはスキュー補正信号と
ヘッドスイッチングパルスを論理処理した信号に基づい
て切換えを実行するよう構成した磁気記録再生装置。 2、第1のスイッチの切換えを指示する論理処−1− 埋伏目を、スロー再生時にはスキュー補正信号とヘッド
スイッチングパルスとファインスロースタート信号とを
論理処理して作成す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。
[Claims] 1. Two heads with the same azimuth
The luminance signal demodulation and the chromaticity signal are demodulated from the reproduced signals from these two heads, and the chromaticity signal or this chromaticity signal is
A first switch selects one of the H delayed signals and adds it to the prepaid luminance signal, and a second switch selects and outputs either this added signal or a signal delayed by 0.5 H. The second switch detects the presence or absence of skew in the addition signal and executes the switching, and the first switch detects the presence or absence of skew in the addition signal, and the first switch detects the presence or absence of skew in the addition signal, and the first switch detects the presence or absence of skew in the addition signal, and the first switch detects the presence or absence of skew in the addition signal, and the first switch detects the presence or absence of skew in the addition signal and executes the switching, and the first switch detects the presence or absence of skew in the addition signal and executes switching, and the first switch detects the presence or absence of skew in the addition signal and executes switching, and the first switch detects the presence or absence of skew in the addition signal A magnetic recording and reproducing device configured to perform switching. 2. Logic processing for instructing switching of the first switch -1- The impaction eye is created by logically processing a skew correction signal, a head switching pulse, and a fine slow start signal during slow playback. A magnetic recording/reproducing device according to claim 1.
JP58156646A 1983-08-26 1983-08-26 Magnetic recording and reproducing device Granted JPS6047587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58156646A JPS6047587A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58156646A JPS6047587A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS6047587A true JPS6047587A (en) 1985-03-14
JPH053798B2 JPH053798B2 (en) 1993-01-18

Family

ID=15632204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58156646A Granted JPS6047587A (en) 1983-08-26 1983-08-26 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6047587A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6195516B1 (en) 2000-02-18 2001-02-27 Toshiba Tec Kabushiki Kaisha Developing device

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6195516B1 (en) 2000-02-18 2001-02-27 Toshiba Tec Kabushiki Kaisha Developing device

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Publication number Publication date
JPH053798B2 (en) 1993-01-18

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