JPS6080390A - Recording and reproducing device of color video signal - Google Patents

Abstract

PURPOSE:To obtain an inexpensive color recording and reproducing device with simple entire circuit constitution by applying time axis compression to two kinds of color difference signals, applying time division multiplex in one horizontal scanning period and recording the result to a luminance signal without time axis compression while multiplexing. CONSTITUTION:An NTSC color video signal incoming to an input terminal 1 is fed to a low pass filter 2 and a band pass filter 3 and separated into a luminance signal and a chrominance carrier signal. The chrominance carrier signal is demodulated into two kinds of color difference signals EI, EQ at a decoder 4, fed to a synthesis circuit via a 3/4 time axis compression circuit 5 and 1/4 time axis compression circuit 6 respectively and a time division multiplex signal where two kinds of time axis compression color difference signals are synthesized in time series is obtained. The synthesized time division multiplex signal is inverted for the polarity at each 1H by a pulse which is phase locked to a horizontal synchronizing signal, the signal is mixed with a luminance signal EY not subject to time axis compression and extracted via a 1H delay circuit 12 from the low pass filter 2 and the result is fed to a recording signal processing circuit 14 as a multiplex recording signal.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はカラー映像イａ翼の記録再生装置に係り、特に
２種類の色差信ＯＨを１４間１（ｂ圧縮した後時分割多
重して記録媒体に記録し、再生時は時間軸圧縮された色
差信号を時間軸伸長し−Ｃもどの１．１間軸に戻した後
、同時に伝送される輝度信号と共に再生カラー映像信号
を生成りる記録再生装置偶に関Ｊる。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a recording and reproducing apparatus for color video images, and in particular, compresses two types of color difference signals (OH) by 14×1 (b) and then time-division multiplexes them onto a recording medium. During recording and playback, the time axis of the compressed color difference signal is expanded, and -C is returned to any 1.1 axis, after which a reproduced color video signal is generated together with the luminance signal that is transmitted at the same time. Regarding equipment.

従来技術 現イ］のカラー映（ｇξ信舅の記録再生装置（例えばＶ
　Ｔ’　Ｒ）のうち主流を占める記録再生装置は、標準
方式（Ｎ　Ｔ　Ｓ　Ｃ方式、ＰＡｌ方式又はＳＦＣＡＭ
方式）の複合カラー映像信号から輝度信号と搬送色信号
とを夫々分離し、輝度信号は周波数変調しく被周波数変
調波とし、搬送色信号は低域へ周波数変換して低域変換
！＃！送色信弓とした後上記被周波数変調波に周波数分
割多重して記録し、再生ＩＦ冒こは記録ｎ１１１どは逆
の信号処理を行なってもとの標準方式にｉ１ｇ拠した再
生複合カラー映像信号をＪＥＪる、所謂低域変換記録書
／：１万式の記録再生装置であることは周知の通りであ
る。かかる低域変換記録再生方式の記録再生装置は、■
輝度信号の帯域をｆ（：　ｔＢ、に選ぶことができるの
で記録再生し得る帯域が比較的狭い民１１−用Ｖ　Ｔ　
Ｒに適用して特に好適であり、■復調侑（１）号が＼／
ＴＲの再生時間軸変動の影響を受（）にくり、■［τＭ
変復調系を通るのは輝度信８のみであり、また再生低域
変換搬送色信号の＋＋、ｌｒ間輔変動間際変動るための
パイロット信号を記録［り生しイ１いからビー１〜妨害
が少なく、更に■被周波数変調輝１ｆｊ信号が高周波バ
イ）７ス的な働きをして１１０送色（Ｆ４　ｇを直線性
良く記録づ゛ることが（・・さる等の利点を右する。Conventional technology] color video (recording/reproducing device of
The mainstream recording and reproducing devices of T'R) are standard systems (NTSC system, PAl system, or SFCAM
The luminance signal and the carrier color signal are separated from the composite color video signal of the method), the luminance signal is frequency-modulated and becomes a frequency-modulated wave, and the carrier color signal is frequency-converted to a low frequency band! #! After creating a color transmitting signal, the frequency-modulated wave is frequency-division multiplexed and recorded, and the reproduction IF recording is performed with reverse signal processing such as n111 to produce a reproduced composite color image based on the original standard method. It is well known that this is a so-called low-frequency conversion recording/:10,000-type recording/reproducing device that processes signals. A recording and reproducing device using such a low frequency conversion recording and reproducing method is as follows:
Since the band of the luminance signal can be selected as f(: tB), the band that can be recorded and reproduced is relatively narrow.
It is particularly suitable for application to R, and ■Demodulation Yu (1) is \/
Due to the influence of TR reproduction time axis fluctuations,
Only the luminance signal 8 passes through the modulation/demodulation system, and a pilot signal for the near-term fluctuations of the reproduced low-frequency conversion carrier color signal ++ and lr is recorded. Furthermore, the advantage is that the frequency-modulated brightness 1fj signal acts as a high-frequency bypass and records 110 color transmission (F4g) with good linearity.

しかし、その反面、上記の低域変換記録再生方式の記録
再生１；！；買は、■被周波数変調輝度信号と低域変換
搬送色信号〕とを周波数分側条Φして非直線伝送系の磁
気テープに記録再生ザるためにモアレか発生し、■記録
書（１帯域が限られているから、低域イ２換搬）ス色１
３号の帯域分だけ被周波数変調輝度信伺の帯域〈換言１
ノると輝度信号の帯域）を狭くシイで（りれ（ＪＬ翼ｒ
ら１〕゛、０）眼送色僧号の変調信号である２秤の色；
＜Ｉ　Ｃ’！号のう１５広帯域の色差信号（例えばｌ信
号どに）＋８号のうｌうのｌ信号）の帯域が低域変換に
よ゛つで制限され、■低域変換搬送色信号はＮ　１”　
Ｓ　Ｃ方式又はＰ△１一方式カラー映像イｉ、弓記録時
には平衡変調波で゛あり、それが九周波数変調輝庶信月
によりパイｊ′ス記録されているから、−７−プ・ヘッ
ド間の接触むらに起因して再生低域変１！ｉ８搬ｅＺ　
ｅ＝　信号（７）　Ａ　Ｍ　／　イ’７：　ｌｆｉ　ａ
ｔ　Ｕ　Ｓ　／　Ｎ　（イｔ’ｉ　８％１雑音比）が豚
化し、史に■相隣るごデフ１１−ラックを記録再生する
２個のヘッドが互いにアジマス角度を異イ、〜らしめら
れてガードパントノ１（ξくビデＡ；・ラックを記録形
成刃る、所謂アジンス記録再生方式を適用された記録再
生装置ては、アジマス損失効果が低ｊ或周波数に対して
十分でないことから、再生信号中に隣接１〜ラツクの低
域変換搬送色信号がり［１スト一ク成分として混入され
てしまうために、記録再生時にＮＴＳＣ方式又はＰ△１
−１：式の低域変換１消送色信号の色副搬送波周波数の
４Ｃ１相を１水平走査１ｙ］間（１ト１）毎に略９００
Ｇｆｔ移させたり〈例えハ４ｇｉ公Ｉｌｌ　５６　９０
７３４　公報、特公昭５ｂ−３２２７３号公報）、ある
いは相隣るビデオトラックの一方の低域変換搬送色信号
のみその位相を１１−ｌ　ｆ；ｊに反転ざゼる、などの
り［１ストークヌ・ｊ策処理か必要であるなどの問題点
があった。However, on the other hand, recording and playback 1 of the above low frequency conversion recording and playback method;! ; Since the frequency-modulated luminance signal and the low-frequency conversion carrier color signal are recorded and reproduced on a magnetic tape using a non-linear transmission system, moiré occurs; 1 Band is limited, so low frequency A 2 conversion) S color 1
The band of the frequency modulated luminance signal is equal to the band of No. 3 (paraphrase 1)
When the brightness signal band is
1〕゛, 0) 2 scale colors that are the modulation signals of the eye-feeding colors;
<IC'! The band of No. 15 broadband color difference signal (for example, L signal) + No. 8 No. 1 L signal) is limited by low-pass conversion, and the low-pass conversion carrier color signal is N 1".
When recording an S C system or a P△1 system color image, it is a balanced modulated wave, and since it is recorded by a nine-frequency modulation system, the −7-p head Low frequency playback due to uneven contact between the two! i8 transport eZ
e= Signal (7) A M / I'7: lfi a
t US/N (it'i 8% 1 noise ratio) has become a pig, and the two heads that record and playback the adjacent differential racks have different azimuth angles. In recording and reproducing apparatuses that use the so-called azimuth recording and reproducing method, in which the rack is used to form records, the azimuth loss effect is not sufficient for low frequencies. Adjacent 1 to 3 low-frequency conversion carrier color signals are mixed into the signal as one-stroke components, so NTSC or P△1 is used during recording and reproduction.
-1: Low-pass conversion of the formula 1 The 4C1 phase of the color subcarrier frequency of the faded color signal is approximately 900 times per horizontal scan 1y] (1t1)
Gft transfer (for example, 4gi public) 56 90
734 Publication, Japanese Patent Publication No. 5b-32273), or inverting the phase of only the low-frequency conversion carrier color signal of one of the adjacent video tracks to 11-l f; There were problems such as the need for countermeasures.

史に８　［−ＣＡＭ方式方式カラー色信号を上記のアジ
マス記録再生方式の記録再生装置で記録再生をづる場合
はその搬送色信号が被周波数変調波であるために、上記
しｌ、：クロストーク対策を適用することはできないが
、相隣るビデオ１〜ラツクの長手方向に対して直交づる
方向（トラック幅方向）に水平同期信号記録（ｉ’／協
を整列して記録（所謂ト−１並び記録）し、かつ、側汲
帯域分も含めると　２ＭＨ２以上の広帯域の被周波数変
調波である搬送色信号をカラン１〜ダウンして得た低域
変換搬送色信号の変調信号成分が略ｆ１１じものどおし
くずなわち、同じ種類の色差信号成分とおし）を記録し
、これを再生りるようにしだ揚台（例えば、持分ＩＩＲ
５８２６８７５’ｆｉ；公報などを必要とあらば参照さ
れ！こい）は１、に記の１１℃域変換搬送色信号の隣接
トラックからクロスト−りとして再生される周波数が、
１フィールド間隔のカラー映像信号成分には相関性があ
り、しかも変調信号成分が略同じものどうしがｉＭ＜　
／υで記録されているから、再生トラックの低域変換搬
送色信号の周波数と略同−周波数となり、両信丁」によ
るビーｉ・は周波数が零に近いのぐクロスト−りの影響
を殆どイＴくすことができる。History 8 [-CAM system] When recording and reproducing color color signals using the above-mentioned azimuth recording and reproducing system recording and reproducing apparatus, since the carrier color signal is a frequency modulated wave, Although it is not possible to apply this countermeasure, it is possible to record horizontal synchronizing signals (i'/co) by aligning them in the direction (track width direction) perpendicular to the longitudinal direction of the adjacent videos 1 to 1. If the side band is included, then the modulated signal component of the low-pass converted carrier color signal obtained by converting the carrier color signal, which is a broadband frequency modulated wave of 2MH2 or more, from 1 to 1, is approximately f11. The same type of color difference signal components (i.e., color difference signal components of the same type) are recorded and reproduced using a recording platform (for example, a
5826875'fi; Please refer to publications if necessary! 1) The frequency reproduced as a cross-talk from the adjacent track of the 11°C range converted carrier color signal described in 1.
There is a correlation between the color video signal components at one field interval, and moreover, if the modulation signal components are almost the same, iM<
/υ, the frequency is approximately the same as the frequency of the low-frequency conversion carrier color signal of the playback track, and the beacon by Ryoshin-Ding is almost free from the influence of crosstalk since the frequency is close to zero. I can use it.

しかし、ｌ−１並び記録されていないトラックパターン
の磁気ｉ−ブ再生時には、相隣る１〜ラツクのＳＥＣＡ
Ｍ方式の低域変換搬送色信号の搬送周波数が異なること
により、隣接１ヘラツクからのり［］スｌヘークによる
ビー１〜周波数が高域にまで及び、１１１生テレビジヨ
一１ン画ｉａｉ十ではそれがノイズとなって現われてし
；１うため、アジマス記録再生方式を適用Ｊろことかで
きないという問題点があった。However, when reproducing a magnetic i-wave of a track pattern that is not recorded in the 1-1 arrangement, the SECA
Due to the difference in the carrier frequency of the low-frequency conversion carrier color signal of the M system, the frequency from the adjacent 1 square to the bee 1 to high frequency range due to the 1-shake extends to the high frequency range. The problem is that the azimuth recording and reproducing method can only be applied because the noise appears as noise.

一方、近年のご１′１９体技術、　Ｉｌ′ｌ密加Ｔ技術
、小Ｉう部品技術などの飛躍的な進歩発展もあって、ｈ
己録１５生装「１′の画質の高品位化ヤ）装置σ）小形
性Ｉｔ（ヒの実現が可１１１１にイｆつでさた。装置、
ｙの小形軒ｈｌ化の）こめにＣＪＬカレットサイズやド
ラム径の縮小化！）り大きく影響し、小型カレットに所
要の記録ＩＣ７間を確保するために（Ｊ、テープ走行速
瓜を遅くザる必要１ｆｉあり、このＪ：うな小へ１１軽
吊化の記録再生装置において、高品位の画質を得るため
に、前記した低域変換記録再生ブ）式以外の新い１記録
７り生プｉ式ノ）り要；）２されるに到った。On the other hand, there have been dramatic advances in recent years in 1'19 body technology, Il'l densely packed T technology, and small I parts technology.
Self-Record 15 Improving the image quality of "1'" device σ) Compactness It was possible to realize 1111. Device,
The reduction in CJL cullet size and drum diameter is due to the compact eave HL of Y! ), and in order to secure the required recording IC7 distance for the small cullet (J), it is necessary to slow down the tape running speed. In order to obtain high-quality images, a new recording/reproducing method other than the above-mentioned low-frequency conversion recording/reproducing method has been introduced.

イこて・、上記の要求を満た寸ため各種の記録再生方式
が提案ざねているが、その中の一つとして’ｄＯ送色イ
訂シを［Ｍ復調して得た２秤の色差信号を１１′１間軸
Ｕ「縮Ｊると共に輝度信号も時間軸圧縮し、これらのイ
乙日をｎ４；分割多用し１この時分割多重信号を周波数
変調して記録媒体に記録し、再生＋ｔ；’ｉは記録時と
は逆の慴号処１！Ｐを行なってもとの標準方式のカラー
映像伯冶の再生出力を得る構成の記録再生装置があった
（例えば、Ｈｉ開昭５１５９２６日公報参照）。この記
録再生装置は、輝度信号と色差イ１ソ→の両帯域の相違
を勘案し、帯域が狭し′Ｘツノの信号である色差信号の
方を水平帰線消去期間内で伝送ηることができるＪ：う
に、１１」期間内″Ｃ′伝）スされる−の色差イ言８を
１１４期間の約２０％の＋＋１＋間にｌ、″ｊ間！ｌｌ
１ｌｌ圧縮し、また帯１或利川率などの魚１＞１ら右利
”：ｆ−Ｊ：うに帥１哀侶号については時間軸圧縮色差
イムシー４と同じ程度の帯域を占めるように１１−（期
間の約８０％の明（１−１にｌｒ；’ｒ　ｌａｌ頓ＩＴ
縮して伝送し、更に２つの色差４ＣＩ号についてはＩ　
Ｈ１ｒ＋に交乃に伝送−（する線順次信号として時分割
多重し、この信号を［Ｍ変調器に供給し、このＦＭ変調
器の出力信２］を磁気テープ等に記録し、再生時は記録
時と（３未逆の信８処理を七−Ｉなって再生カラー映ａ
信号をｊｑる記録再生方式（以下、これを［タイムブレ
ックス１１１式と１１１ふちのとづる〉に基づいτ構成
されていた。。A variety of recording and reproducing methods have been proposed to meet the above requirements, but one of them is the 'dO color feeding correction [2-scale color difference signal obtained by M demodulation]. As the axis U between 11'1 and 11' is compressed, the time axis of the luminance signal is also compressed, and these time division multiplexed signals are frequency-modulated, recorded on a recording medium, and reproduced +t. There was a recording/reproducing device configured to obtain the reproduction output of the original standard color video output by performing 1!P in the opposite direction to that at the time of recording. (Refer to the publication).This recording/reproducing device takes into account the difference between the luminance signal and color difference bands, and transmits the color difference signal, which has a narrower band and is a signal with X horns, within the horizontal blanking period. η can be J: sea urchin, within the 11" period "C' transmission) - the color difference between 8 and 114 about 20% of the 114 period + 1 + l, between the "j"! ll
1ll compression, and 11-1 to occupy the same band as the time-axis compressed color difference Imcy 4 for Obi 1 or Ikawa rate etc. (Approximately 80% of the period (lr;'r lalton IT
For two color difference 4CI numbers, I
Time-division multiplexing is performed as a line-sequential signal that is transmitted alternately to H1r+, and this signal is supplied to the M modulator, and the output signal 2 of this FM modulator is recorded on a magnetic tape, etc., and during playback, it is recorded. Time and (3 unreversed faith 8 processing 7-I become playback color video a
A recording and reproducing method for recording signals (hereinafter referred to as τ) was constructed based on [Timebrex 111 type and 111 fuchinotozuru].

冴１１図は上記の時分割多申イムシうのイ九８波形の一
例を示す１１例えばフィールド周波数５０１−１ｚ、走
査線数６２５本のＰ△１一方式又はＳＥＣＡＭ方式の複
合カシ−映像信ｇは、周知のように１１−１がＧ／ｉ／
ｌＳで、水型帰線？ｌ’ｊ人！！ＩＩ間が１２μｓであ
り、残りの５２Ｉハの映像期間に輝度信号及び搬ｊス邑
信号ｈＫ　（入）スされる（ただし、）Ｊウーハ−スト
仏８を除く）か、二とのうち輝度（ｉＩｌ；号は６４ｆ
ＩＳの約ε３０％の期間１．．１１．’ｉ間１ｌｑｌ＋
江れ１；さＡｔ、呑１、ｌこ１侑送色イ３．弓は復調さ
れて２斗・訃の色差化″；）とされ、・これらが６４ｆ
ｌｓの約２０％σ）１！１１間に夫々時間Ｉｌｌ＋圧縮
され、時間ｉｔ’ｌｌ　ＩＥＥ縮飾度信弓信号間１１１
１１１圧縮色差信にとｔ、１．第１図に示す如く時分刷
多申され、か−）、時間軸圧縮色差信号は線順次で伝送
される。また、第１図に示Ｊように、両時間ｌｌｌ１ｌ
ｌ圧縮悟号は５ｏ（、ｔＳ〜Ｇｏ（ｔｓ程度で伝送され
るか、１１１期間は６４μｓであり、残りの期間（ブラ
ンニ）レグ１１１１間）に水＼Ｐ−同期信号１−１．５
ＹＮＣと色信号のｊ、ｔ　ｔ（ｕ　ｌノベルが伝送され
る。Figure 11 shows an example of the waveform of the above-mentioned time-division multiplex signal. As is well known, 11-1 is G/i/
lS, water type return line? l'j people! ! The interval between II and II is 12 μs, and the luminance signal and carrier signal hK are input during the video period of the remaining 52I (excluding J-wooferst Buddha 8), or the luminance signal of the two is input. (iIl; issue is 64f
Period of approximately ε30% of IS1. ．． 11. 'i between 1lql+
Ere 1; Sa At, drink 1, lko 1 Yusukeiroi 3. The bow is demodulated and converted into 2 to 2 color difference'';), and these are 64 f.
Approximately 20% σ of ls) 1!11 between the time Ill + compressed, and the time it'll IEE condensed degree signal between 111
For 111 compressed color difference signals, t, 1. As shown in FIG. 1, the time-base compressed color difference signal is transmitted line-sequentially. Also, as shown in FIG. 1, both times lll1l
l compressed Gogo is transmitted in 5o (, tS ~ Go (transmitted in about ts, the 111 period is 64 μs, and the remaining period (Branni) leg 1111) is water\P- synchronization signal 1-1.5
YNC and color signals j, t t (ul novel) are transmitted.

かかる時分割多重信号を伝送するタイムプレックス１１
式によ４′）ば、輝度信号と色Ｗ信号とが同時に伝送さ
れる期間）Ｊ存在しないので、ＮＴＳＣ方式やＰ△１一
方式カラー映像信号の如く輝度信号と搬）ス色信８どを
夫々イ１）域其用多重化して伝送する場合に〈Ｌするこ
とがある輝度信号ど色差信号どの間での相ｎ干渉ヤ）ｔ
ｊ’しを生ずることはなく、Ｊ：ｋＮ　Ｔ　Ｓ　Ｃ方式
、１〕△ｌ一方式及びＳＥＣＡＭ方式カラー映像信号の
いずれの場合もアジマス記録再生り式の記録再生装置に
Ｊ：す１１並びのし４１い１〜ラツクに記録され再生さ
れたとしても、相隣る１へラックにはＩ？１分割多重信
号がアジマス１０失効果が大−（゛ある高周波数の搬送
波を周波数変調して得られた被周波数変に＋、’ｌ波信
呂形態で記録されでいるから、アジマス損失効果によっ
てクロストークを殆ど（１ヨすることはなく、前記した
クロストーク対策は不要となり、高品位の再生画質が得
られる。Timeplex 11 for transmitting such time division multiplexed signals
According to formula 4'), since there is no period during which the luminance signal and the chrominance W signal are transmitted simultaneously, the luminance signal and the chrominance signal 8, such as the NTSC system or P△1 one-way color video signal 1) Phase n interference between the luminance signal and color difference signal, which may result in L, when multiplexing and transmitting
The J:kN TSC method, the 1]△l one-way method, and the SECAM method color video signal do not occur, and when the J:kN TSC method, 1]△l one-way method, and SECAM method color video signal are used, the Even if it is recorded and played back in 1 to 41 racks, there is no I? in the adjacent rack. The 1-division multiplexed signal has a large azimuth loss effect. There is almost no crosstalk (1 yo), the above-mentioned crosstalk countermeasures are not required, and high-quality reproduced images can be obtained.

更に、タイムプレックス方式におりる上記の１１″１間
軸圧縮輝度伏月及び時間軸圧縮色差信号は、共に低周波
数帯域でｔ；１エネルギが人で、高周波！７り１シ域で
二［ネルキが小となるエネルギ分布をもっことどなり、
周波数変１！、］に適したイ繁舅形態Ｃ・あるから、変
調指数が人びくどれＳ／Ｎを大幅に敗色することができ
、；１°た更に時間軸伸長する際に再生時間クリ１；変
動を略完全に除去Ｊることができ、以上から再生画質を
低域変換記録内生方式のそれに比し大幅に改麿りること
ができる。Furthermore, the above-mentioned 11" axis-compressed luminance gradient signal and time-axis compressed color difference signal in the time-plex method have t;1 energy in the low frequency band, and 2[ in the high frequency range! The energy distribution where Nerki becomes small is shouted as much as possible,
Frequency change 1! Since the modulation index is suitable for the conventional mode C, the S/N can be greatly reduced, and the playback time can be increased by 1° when the time axis is extended by 1°. It can be almost completely removed, and from the above, the reproduced image quality can be significantly improved compared to that of the low frequency conversion recording endogenous method.

発明が解決しようとする問題点 しかるに、前記したタイムプレックス方式は、色差信号
に比しかイｉ−り広帯域イ′ｆ輝度信号も、色差（ｉｎ
号と同様に時間ｌ１ｑ１１圧縮して伝送していたため、
高いサンプリング周波数を用いた複層１で高等な構成の
輝度信号用１．ｙ間軸圧縮回路を必要どし、装置全体の
回路構成が複雑で高価どなるという問題点があった１、
また、ｌ’＋ｉｉ記したタイムプレックス方式は水平同
期信号を輝度（Ｎ月から分離しく所定位置に（Ｉｒ１人
じ（（云ｊスする処理が必要で、水平同期信号の取１１
々いか比較的煩釘１で′あり、更に色差信号として１信
号とＱ信８を伝送する場合は、時間軸圧縮率が両信号其
に同一イ１ので、広帯域のＩ信号がＱ（言号程度に帯域
制限されるという問題点があった。Problems to be Solved by the Invention However, in the above-mentioned time-plex method, the wide-band i'f luminance signal, which is much faster than the color-difference signal, is
Because the time was compressed by l1q11 and transmitted like the issue,
1. For luminance signals with a multi-layer 1 and advanced configuration using a high sampling frequency. There was a problem that a y-axis compression circuit was required, and the circuit configuration of the entire device was complicated and expensive1.
In addition, the time-plex method described in l' + ii requires processing to place the horizontal synchronization signal at a predetermined position separately from the luminance (N month).
In addition, when transmitting 1 signal and Q signal 8 as color difference signals, the time axis compression ratio is the same for both signals, so the broadband I signal is There was a problem that the bandwidth was limited to a certain extent.

また更に従来のタイムプレックス方式は色差信８（Ｒ−
Ｙ）及び（１３−Ｙ）を１１−１１１Ｊ１間の約２０％
、１なわち約１１５に１１２１間軸圧縮しているが、色
差信局（＋−（−Ｙ）、（Ｂ−Ｙ）は夫々的１．３Ｍ＋
−１２の帯域を有してｉｒ５す、１１５に時間軸圧縮す
ると帯域が約６．５Ｍ　ＨＺとｔｌつ、家庭用Ｖ　Ｔ　
Ｒのよう４ｆ狭帯域の記録再生帯域を６つ記録再生装［
ｒｌに適用した場合（ま、時間＋１ｉ１１１　Ｉｆ：線
色差信号の伝送帯域が制限され、よつＵ　ｎ、４間軸伸
長されてもとの期間−１１に戻された１１生巨Ｘ−（Ｆ
ｊ号の帯域が若干制限されるという問題点があった。Furthermore, the conventional timeplex method uses color difference signals of 8 (R-
Y) and (13-Y) about 20% between 11-111J1
, 1, that is, approximately 115, but the color difference signal stations (+-(-Y), (B-Y) are each 1.3M+
If the time axis is compressed to 115, the band becomes about 6.5 MHz, and the household V T has a band of -12.
Recording and reproducing equipment with six 4f narrow band recording and reproducing bands like R [
When applied to rl (well, time + 1i 111 If: the transmission band of the line color difference signal is restricted, and the 11 raw giant X- (F
There was a problem that the band of No. J was somewhat limited.

そこで、本発明は２秤類の色差信号を時間軸圧縮して得
た２秤すｒｌの時間軸圧縮色差信号が１水平走査期間＜
　Ｉ　Ｈ）内に時分ス１ｊ多重され、がっ、１１＠毎に
位相反転された時分割多重信号を生成し、その信号を時
間ｌｌ１１１１斤縮をし４１〜い輝ｍ信号に多重して記
録し、再伴時はくし形フィルタを用いて再イ」信号から
輝ｆ（ｆ　（ｉＪじ３と１１ｒ分割多重された時間軸圧
縮色差信号とを夫々分離し、肋間軸圧縮色差信号は（１
，″ｉ間軸伸艮してｂどの時間軸に戻すことにより、に
記の諸問題前を悉く解決したカラー映像イあ号の記録再
生装置１Ｍを提供り−ることを目的ど覆る。Therefore, in the present invention, the time axis compressed color difference signal of two scales rl obtained by time axis compressing the color difference signals of two scales is less than one horizontal scanning period.
A time-division multiplexed signal is generated which is time-multiplexed within IH) and whose phase is inverted every 11@, and the signal is compressed in time by 1111 and multiplexed into a luminance signal from 41 to 1. When recording and re-entraining, a comb filter is used to separate the brightness f (f
, ``The purpose of this invention is to provide a color video recording and reproducing apparatus 1M that solves all of the problems described in 1.

問題点を解決り−るための手段 本発明は、帯域ｔ３　’ＩＡ’　＋を有づる第１の色差
信ニ］ど帯域１３Ｗ２を何Ｊる第２の色差信号のうち該
第１の色停化舅をｆ３Ｗ＋　／　（ＢＷ＋　−１−ＢＷ
２　）に時間軸圧縮して第１のｌ）間軸圧縮色差信号を
出力りるど共に、該第２の色差信号をＢＷ７　／　（Ｂ
ＷＩ＋ＢＷ２　＞に時間軸圧縮して絹２の時間軸圧縮色
差信号を出力−する時間軸Ｆ「縮回路と、該時間軸ｊ下
線回路よりの該第１及び第２の時間軸圧縮色差信号を交
１ｊに＋ｒ、゛、系列的に合成すると共に、１水平走査
期間毎に位相反転して時分割多重信号を１↓ｌる回路と
、該０１分分割子（ＦＪ　′；Ｊと時間軸圧縮が行なわ
れ（いイ１い輝度イハ）〕とを人々多重Ｊる第１の混合
回路ど、該第１の）捏合回路の出力多重信号を記録媒体
に記録し、これを再生する手段と、該再生多重（ハク〕
から該１１、）分割多重信号と該輝度信号とを夫々別々
に分Ｈして出力づるくし形フィルタと、該くし形フィル
タよりの再生時分割多重信号を該くし形フィルタＪ、り
の再生輝度信号中の水平同期信号から〈（−成１．たス
イツヂング信号に基づいて前記１水平走査期間毎の１）
″／相反転の除去された再生時分割多重信号を寄るスイ
ツヂ回路手段と、該スイツヂ回路手段Ｊ、りの再／Ｉ　
１１．’１分分割型信号が供給されｂどの＋ｔｌ、間軸
に戻された該第１及び第２の色差イ占弓の再生信号をＩ
ｌｌｏる時間軸伸長回路と、該第１及び第２の色差（Ｉ
ｎ　ｙうの再生信号から所望の標１Ｍテレヒション方式
に卑拠した搬ｊス色信号を生成する回路ど、課題）ス色
仁号ど該くし形フィルタよりの再生輝度（、′１５″、
どを夫々多Φしぞの長手信号を再生カラー映像信号どし
て出力り−る第２の混合回路とよりｌｂｊ成した一ｂの
であり、以下その各実施例につぃて第２図以下の図面と
共に説明りる。Means for Solving the Problems The present invention provides a first color difference signal having a band t3 'IA' + and a second color difference signal having a band 13W2. F3W+ / (BW+ -1-BW
2) and outputs the first time-axis compressed color difference signal, the second color difference signal is compressed by BW7/(B
WI+BW2 > The time axis F "compressed circuit which compresses the time axis and outputs the time axis compressed color difference signal of silk 2" intersects the first and second time axis compressed color difference signals from the time axis j underlined circuit. 1j +r, ゛, a circuit that sequentially synthesizes the time-division multiplexed signal by 1↓l by inverting the phase every horizontal scanning period, and the 01-minute divider (FJ ′; J and time axis compression). means for recording the output multiplexed signal of the first mixing circuit on a recording medium and reproducing the same; Multiple playback (Haku)
11.) The division multiplexed signal and the luminance signal are separately divided and outputted by a comb-shaped filter, and the reproduced time-division multiplexed signal from the comb-shaped filter is outputted by the comb-shaped filter J, and the reproduced luminance signal is From the horizontal synchronization signal in the signal (-1) for each horizontal scanning period based on the switching signal
``/Switch circuit means for regenerating the reproduced time-division multiplexed signal from which phase inversion has been removed, and the switch circuit means J and R/I
11. 'When the 1-minute split type signal is supplied, the playback signal of the first and second color difference axes, which is returned to the inter-axis, is
llo time axis expansion circuit, and the first and second color difference (I
A circuit that generates a carrier color signal based on the desired standard 1M telegraphy system from a reproduced signal of n y.
Each of these circuits is made up of a second mixing circuit which outputs a multi-Φ longitudinal signal as a reproduced color video signal. This will be explained along with the drawings.

実施例 第２図は本光明装首の第１実施例の記録系のブロック系
統図を示１Ｊ−，本実施例はＮ　Ｔ　Ｓ　Ｃ方式規格の
ヘリカルスキＡノン方弐Ｖ　’Ｔ　Ｒに適用した例で、
同図中、入力端子１に入来したＮ　ｒｓｃ方式カラー映
像ｆ菖チ３＋ｊ但域フィルタ２及び帯域フィルタ３に夫
々供給され、低域フィルタ２により輝度信号が分離−波
され、帯域フィルタ３にＪ、り搬送色信号が分前ろ波さ
れる。ここで、説明の便宜上、入ツノＮ　Ｉ　Ｓ　（’
、方式カラー映像イハシシどじで、第３図（△）に示（
Ｊ如きカラ−バー１１π号が入来したものと覆ると、低
域ノイルタ２　ｂｒ　ｌらは同図（「３〉に示す−如き
波形の輝１良信シー８ＦＹか取り出される。イ１お、第
３図（△）中、ＣＢ＋　、ＣＢ２　、Ｃ１３３はカラー
バースＩ−信号を示刀。Embodiment Fig. 2 shows a block system diagram of the recording system of the first embodiment of this Komyo neck.This embodiment was applied to the helical scanon A system V'TR of the NTSC system standard. For example,
In the figure, an Nrsc color image input to an input terminal 1 is supplied to a bandpass filter 2 and a bandpass filter 3, respectively, and a luminance signal is separated by a lowpass filter 2 and sent to a bandpass filter 3. J, the carrier color signal is prefiltered. Here, for convenience of explanation, Irutsuno N I S ('
, as shown in Fig. 3 (△) using the method color video Ihashishi-doji (
When the color bar 11π such as J is replaced with the incoming one, the low frequency noise filter 2 br l and the like are taken out. In Figure 3 (△), CB+, CB2, and C133 indicate colorverse I- signals.

帯域ノイルタ３から取り出された搬送色信号は、Ｉ信号
どＱ　（Ｎ月の２石Ｆ類の邑多イー１１−弓で゛色陣Ｉ
ＩＩＱ送ン皮周波数３．．’＋７９５４５　Ｍ　ｌ−Ｉ
　Ｚを搬送波抑圧直角二相振幅変調し−（１１７られた
被変調波であり、ア゛コーダ１に供給され−Ｃ’　＋　
＋、：ｊ号Ｅ　＋とＱ（乙号にＱとに夫々復調される。The carrier color signal taken out from the band noise filter 3 is the I signal DQ
IIQ transmission skin frequency 3. ．． '+79545 M l-I
Z is carrier-suppressed quadrature two-phase amplitude modulated -(117) modulated wave, which is supplied to the encoder 1 as -C' +
+, :J number E + and Q (demodulated into O number and Q, respectively.

ここで、前記の回；度信号ＥＹ、−１記の色差イ１．″
ｇ；　１’：　、及び［Ｏは、周知の如く次式で示され
る。Here, the color difference A1 of the previous time; degree signal EY, -1. ″
g; 1': and [O are represented by the following formula as is well known.

１、：　１．−し、１一式中、ｌ−Ｒ，Ｆｃ及び’ＦＢ
は、夫々赤。1.: 1. -, in one set, l-R, Fc and 'FB
are red respectively.

緑及び青のカンマ１ｌＩｉＩｌ−シた原（Ｑ　（、ｉ号
を示す。Green and blue comma 1lIiIl-shitahara (Q (, indicates the i number.

−、ｌ二記の色大イハ号［Ｉは約１．５ＭＨ２の帯域を
占有ηるベースパンｌ’　＋１−１　；うであり、カラ
ーパー１、）号人力限１には第３図（Ｃ）に示り一波形
の信８とされて３／／ｌｌ′１間軸圧紺１回路５に供給
され、ここてそａ〕＋＋ｒｒ間軸か３７７４にＬ１縮さ
れる。一方、色；で藉８ＩＥ　ｏは約０．５１ＶＩト（
ｚの帯１或を占有するベースパン１−伝舅−（あり、カ
ラーハーイ＾舅入力ｎ：′ｌには第３図（１つ）に承り
波形の信５コとされて１／／′１時間軸圧縮回路Ｏに供
給され、ここでその時間軸か１／４に１１紬さ机ろ。イ
（−お、第３３図（Ｃ）中、Ｃ１及び０２（、Ｌ（！２
差イ、−ニジ；［１の色基準となる直流しｌ＼ルである
ハースＩ−レベルを示し、すした第３図（Ｄ）中、（１
１及び（１２は色差信号Ｅ　Ｑのバーストレベルを示Ｊ
−１１バーストレベルは白１（）０％を１としたとさ゛
、ｃ　、　、　ｃ　、、は夫々約０．１１　、　（＋　
、及びｄ２は夫々約−０，１７である。また、時間１１
１１１＋圧縮回路５及び６はブーレージ・カップルド・
う″゛バイスＣＯＤ）の如さ電タｉ転］ス素子ヤ）、Ａ
Ｄ変換器とランクｌ＼・アクセス・メモリ（ＲＡＭ）と
Ｄ△変換器とからなるディジタル回路で１ｉ１４成Ｊる
ことができる。-, l2 color large Iha number [I occupies a band of about 1.5 MH2 η basepan l'+1-1; As shown in C), the waveform signal 8 is supplied to the 3//ll'1 axis compression circuit 5, where it is compressed by L1 to 3774 between the a]++rr axis. On the other hand, the color is approximately 0.51 VI (
The base pan 1, which occupies the band 1 of Z, has 1//' 1 time axis is supplied to the time axis compression circuit O, where 11 times the time axis is 1/4.
Difference A, -Niji; In Figure 3 (D), which shows Haas I-level, which is a direct current l\le that is the color standard of [1,
1 and (12 indicate the burst level of the color difference signal EQ.
-11 burst level is when white 1 () 0% is taken as 1. ゛, c, , c, , are about 0.11, (+
, and d2 are approximately −0 and 17, respectively. Also, time 11
111 + compression circuits 5 and 6 are Boulage coupled
A
A digital circuit consisting of a D converter, a rank l/access memory (RAM), and a D△ converter can be used to construct 1i14.

３　／　／ｌ　ｎ；〜間軸圧縮回路５から取り出された
第１の時間軸圧縮色差信号Ｆ＋’　は、その帯域が２．
０ＩＶＩ　ｌ−１７（−１，！ｉＭ　ｌ−１７→（３／
／ｌ　）　）であり、合成回路７に供給される１、また
１／／ｌ時間中１げ１縮回路６から取り出された第２の
ＩＩ）間輔圧紺ｉ色差信号１丁０′は、その帯１戊が２
．ＯＭ　ｌ−１ｚ　（＝　Ｏ，！ｉＭ　ｌ−１ｚ÷（１
／　／１．　）　）−（、・あり、合成回路７に供給さ
れる。The first time-domain compressed color difference signal F+' taken out from the inter-domain compression circuit 5 has a band of 2.3//ln;.
0IVI l-17(-1,!iM l-17→(3/
/l ) ), and the second II) interstitial pressure dark blue i color difference signal 1 to 0' which is supplied to the synthesis circuit 7 and which is taken out from the 1 to 1 compression circuit 6 during 1//l time is, 1 obi is 2
．． OM l-1z (= O,!iM l-1z÷(1
/ /1. ))-(, · is present and is supplied to the synthesis circuit 7.

これにより、合成回路７からは共に帯域が２．０ＭＨｚ
でとる第１及び第２の１１ｈ間軸圧縮色差信号１丁１′
及びＥＯ′が交ｎに時系列的に合成された時分割千手１
．゛〕号が取り出される。ここで、色差信号Ｅ＋、ＩＥ
ｏに苅り−る夫々の時間軸圧縮率［３／／１．１．ｒ１
／／１．１は、両者を加算すると「１」どなる値であり
、よって上記の時間軸圧縮色差信号Ｅ＋’及びＥｏ’の
各１ｌ１期間の信号部分を交互にｌ＋、′Ｉ系列的に合
成した時分割多重信号は、ぞの１１−１１１１１間に時
間軸圧縮色差信号Ｅ＋’　とＦＱ’の各１１−１期間の
信号部分か第３図（１三）に示ず如く過不足なく伝送さ
れることになる。As a result, the band from the synthesis circuit 7 is 2.0MHz.
1 axis compressed color difference signal between the first and second 11h taken by 1'1'
and EO′ are time-sequentially synthesized into the intersection n.
．．゛゛〕 is taken out. Here, color difference signals E+, IE
Each time axis compression rate [3//1.1. r1
//1.1 is a value that becomes "1" when both are added, so the signal portions of each 1l1 period of the above time-axis compressed color difference signals E+' and Eo' are synthesized alternately in l+, 'I series. The time-division multiplexed signal is transmitted between 11-11111 with just the signal portion of each 11-1 period of time-axis compressed color difference signals E+' and FQ' as shown in FIG. 3 (13). That will happen.

しかも、上記の時間軸圧縮色差信号Ｅ＋’及びＦｏ’の
夫々の帯域は２．０Ｍ＋−１７であり、これは比較的狭
帯域の記録再生帯域を有する一般家庭用Ｖ　Ｔ　Ｒて・
ム充分Ｓ／Ｎ良く伝送することができる帯域であるから
、記録再生帯域の狭さにより色差信号の周波数特ｆ１が
劣化りる現象は生じない。Moreover, the band of each of the time-axis compressed color difference signals E+' and Fo' is 2.0M+-17, which is suitable for general home VTRs having relatively narrow recording and reproduction bands.
Since the frequency characteristic f1 of the color difference signal is not deteriorated due to the narrowness of the recording and reproducing band, this does not occur.

このようにして、合成回路７により合成されて取り出さ
れｌζ第３図（Ｅ）に示す−如さ時分割各車ｊＡ’ｊ　
”’シ（，１、スイッチ回路８の端子８ａに供給される
一方、インバータ９により位相反転されてからスイッチ
回路８の端子８ｂに供給される。In this way, the signals are synthesized and taken out by the synthesis circuit 7, and each time-divided vehicle jA'j is synthesized and extracted as shown in FIG. 3(E).
"'shi(,1) is supplied to the terminal 8a of the switch circuit 8, and after its phase is inverted by the inverter 9, it is supplied to the terminal 8b of the switch circuit 8.

他方、前記した輝度信号ＥＹは水平同期信号弁−１回路
１０に供給され、ここで水平同期信号が分離抽出された
後１／２分周器１１に供給される。On the other hand, the luminance signal EY described above is supplied to the horizontal synchronization signal valve-1 circuit 10, where the horizontal synchronization signal is separated and extracted, and then supplied to the 1/2 frequency divider 11.

これににす、１ｌ２分周器１１がらは水平同期信号に位
相間Ｉｌｌ　Ｌだ、２１−１周期の苅称矩形波が取り出
され、この矩形波はスイッチ回路８にスイッチング信号
どして印加され、スイッチ回路８を成る１１１期間はＧ
Ｑｉｉ　−ｒ”　８　ａの入カ信５シ選択出カ状態どし
、次の１ｌ−ＩＩ！１間は端子８ｈの入力信号選択出力
状態とするような、１Ｈ毎に交Ｕに切換接続させるスイ
ッチング制御を行なう。In this case, the 1l2 frequency divider 11 extracts a rectangular wave with a period of 21-1 between the phases of the horizontal synchronizing signal, and this rectangular wave is applied to the switch circuit 8 as a switching signal. , the 111 period constituting the switch circuit 8 is G
Qii-r"8a's input signal 5S selection output state, and the next 1l-II!1 is the input signal selection output state of terminal 8h, so that it is switched and connected to AC U every 1H. Performs switching control.

従って、スイッチ回路８の出力信号は、第３図（Ｆ）に
示ザ如く、同図（［）に示した１ｌ１１記時分割多単４
Ｆｊ　’Ｉ’ｉを１１−１毎に交Ｈに位相反転して得た
時分割多重信号どなり、前記時間ｌ１１１１圧縮色差信
号Ｅ＋’　ど「Ｑ′とが時系列的に合成された１１−１
期間ど、ｌ）間軸圧縮色差信号Ｅ＋’　、Ｅｏ’　の位
相反ｔｌｔ、（Ｆ＋　’／’ｒ　Ｉ］’　と［：Ｑ′と
が１１、−系列的に合成された１］−１期間とが交互に
現われる時分割多重信号となる。このスイッチ回路８か
ら取り出された第３図（Ｆ）に示す時分割多重信号は混
合回路１３に供給され、ここＣ低域フィルタ２Ｊ：す１
１−目Ｙ延回路１２を介しで取り出された第３図（Ｂ）
に示しｌ〔、時間軸圧１１ｉ−ｉがされていない輝度信
号ＦＹと混合されて同図（Ｇ　）に示１如ぎ多重信号に
変換され１．：後、記録信号として記録信号処理回路１
４に供給される。４Ｔお、１１−１８延回路１２は時間
軸圧紺１回路５．６にＪ、り最低１１」の羅廷が発生す
るので、それを補１三ツ゛るｌこめに設けられている。Therefore, the output signal of the switch circuit 8 is as shown in FIG.
The time-division multiplexed signal obtained by phase-inverting Fj 'I'i every 11-1 and the compressed color difference signal E+' and 'Q' are synthesized in time series 11-1.
Period, l) Phase phase tlt of interaxial compressed color difference signals E+', Eo', (F+'/'r I]' and [:Q' are 11, -1]-1 period when sequentially combined The time division multiplexed signal shown in FIG.
FIG. 3 (B) taken out through the 1st Y extension circuit 12
The time axis pressure 11i-i is mixed with the unprocessed luminance signal FY and converted into a multiplexed signal as shown in FIG. 1 (G). : After that, the recording signal processing circuit 1 is used as a recording signal.
4. The 4T and 11-18 extension circuits 12 are provided at least 11" in the time axis printing circuit 5.6, so that they are provided in addition to the 11-18 extension circuit 12.

記録信号処理回路１４は入力多重信号に対して）料気記
録再Ｚｌ：に）のした信号処理を行なう回路で、フ゛り
丁ンファシスＥ１１路、ホワイト・り゛−ククリ゛ンブ
回路９周波数変調器などが縦続接続された回路＋１１１
成どされている。記録信号処理回路１４により所定の信
号処理を行なわれて、例えば第３３図（Ｇ）に示゛す多
重イ菖号で搬送波を周波数変調して得られたＦＭ　’（
ｉＲ’；’ｔか、出力端子１５を介して回転ｌ＼ラッド
図示ｔ！ず〉に供給され、これにより磁気テープ」：に
記録される。The recording signal processing circuit 14 is a circuit that performs signal processing on input multiplexed signals, including recording/reproducing Zl:), a digital amplifier (E11), a white color cleaning circuit (9), and a frequency modulator (9). etc. are connected in cascade+111
It is being developed. The recording signal processing circuit 14 performs predetermined signal processing, and, for example, the FM'(
iR';'t or rotate via output terminal 15 l\rad shown t! The information is supplied to the magnetic tape and recorded on the magnetic tape.

次に再４１系に゛ついて説明１−るに、第４図は本発明
装置の第１実施例の再生系のブロック系統図を示寸。ｌ
ｌｉｌ図中、入力端子１６には回転ヘッドににり磁気テ
ープ（いずれも図示けず）から取り出された再／ＩｒＭ
（、？Ｆ、Ｓが入来し、この再生ＦＭ信号は再生信号処
理回路１７に供給され、ここでＦＭ復調された後ディＪ
ンファシス特性が付与されて第３図（Ｇ）に示す如ぎ再
生多重１１１号として取り出される。この再生多重信号
は加９回路１８．減紳回路１９及び１１−１　ｉｆｉ延
回路２ｏに夫々供給され、更に１１−１遅延回路２０に
より１Ｈ遅延された再生多重信号は減算回路１つに供給
される一方、スイッチ回路２１を通して加算回路１８に
供給される。Next, regarding the 41 system, FIG. 4 shows a block diagram of the regeneration system of the first embodiment of the apparatus of the present invention. l
In the figure, the input terminal 16 has a re/IrM which is taken out from a magnetic tape (none of which is shown) by a rotating head.
(, ?F,
Emphasis characteristics are imparted to the signal and the signal is extracted as a reproduction multiplex number 111 as shown in FIG. 3(G). This reproduced multiplexed signal is transmitted to the adder 9 circuit 18. The reproduced multiplexed signal supplied to the reduction circuit 19 and the 11-1 ifi delay circuit 2o, respectively, and further delayed by 1H by the 11-1 delay circuit 20 is supplied to one subtraction circuit, while being supplied to the addition circuit 18 through the switch circuit 21. supplied to

−に記の回路１８，１９．２０及び２１はくし形フィル
タを櫂成ｌノ’Ｃｉｔ３す、加算回路１８より再生多重
信号中の輝度１１７号が取り出され、減算回路１９より
第３図（ＩＴ）に示した１ト１毎に位相反転された１１
、Ｙ分割多ｒｎ　Ｏｊ、：；が取り出される。- The circuits 18, 19, 20 and 21 shown in FIG. 11 whose phase is inverted every 1 to 1 shown in
, Y-partitioned polynomial rn Oj, :; is extracted.

このことにつぎ更に詳細に３１明する。いまＡ。This will be explained in more detail below. Now A.

Ｂという２つの信号があり、一方の信号Ｂを１１−１毎
に反転ざぜてＢ、Ｂ、Ｂ、ｌ−１，・・・という順序で
伝送される信号に上記信号Δを加算した信号は、ｎ番［
１のライン（水平走査線）ではＡ十Ｂ　、　ｎ　−＋−
１番１−１のラインてはΔ−＋−Ｂ、ｎ、−＋−２番目
のラインテハへ−ｔＦ３．ｎ＋３番目のラインでは△十
Ｂ、・・・というように伝送される。この加算信号を１
１−１′！ｉ延回路に通りと、その出ツノ信号はｎ＋１
番目のラインて゛はＡ−１−Ｂ、ｎ　＋２番目のライン
ではＡ十Ｂ。There are two signals called B, and one signal B is inverted every 11-1 and transmitted in the order of B, B, B, l-1, etc., and the signal Δ is added to the signal. , nth [
In line 1 (horizontal scanning line), A + B, n −+−
The first 1-1 line is Δ-+-B, n, -+-to the second line is -tF3. On the n+3rd line, Δ1B, . . . are transmitted. This addition signal is 1
1-1′! When the i extension circuit passes, its output signal is n+1
The th line is A-1-B, and the n+2th line is A-1-B.

［１千３番目のラインではへ十Ｂ、・・・という順序で
取り出される。従って、］−記の１Ｈ遅延回路とその入
力加算化２１と出力遅延信号とを夫々加綽刃る加算回路
とからなるくし形フィルタからは、すべてのラインで伝
８２Δが取り出される。また上記の１１」カ延回路とそ
の入力加算信号から出力ｙＹ延信号を差し引く減瞳回路
とからなるくし形フィルタからは、ｎ　＋　１番目のラ
インで２８．ｎ→−２番目のラインで゛２Ｂ、ｎ＋３番
目のラインで２　ｒ３゜・・・なる順序で伝送される信
号、すなわち信号２Ｂが１１−口σに位相反転された信
号が取り出される。[The 1,003rd line is taken out in the order of 10B, . . . Therefore, from the comb-shaped filter consisting of the 1H delay circuit shown in - and the addition circuit that adds the input addition 21 and the output delay signal, respectively, a signal of 82Δ is extracted from all lines. Furthermore, from the comb filter consisting of the above-mentioned 11" extension circuit and a reduction circuit that subtracts the output yY extension signal from the input addition signal, the n+1th line receives 28. The signals transmitted in the order of n→-2B on the -2nd line, 2r3° on the n+3rd line, ie, a signal obtained by inverting the phase of signal 2B by 11-bits σ are extracted.

しかして、本実流例では−」１記の信号Δは輝度信号ｒ
：Ｙであり、また信号Ｂは第３図（Ｅ）に示した時間Ｉ
ｌ＋１１圧縮色差信号［＋’　どＦｏ’の時分割多重信
号である。従って、加算回路１８からは輝度信号ＩＥ　
Ｙが取り出され、ｖＡ算回路１９がらは上記の信号Ｆ＋
’　とＥｏ’　の時分割多重信号が１ト１毎に位相反転
されて（りなわ１５第３図（Ｆ）に承り如き波形で）取
り出される。減算回路１９がら取り出された時分割多重
信号は、スイッチ回路２２の端子２２ａに供給される一
方、インバータ２３により位相反転された後スイッチ回
路２２の端子２２ｂに供給される。Therefore, in this actual flow example, the signal Δ in "1" is the luminance signal r
:Y, and the signal B is at the time I shown in FIG. 3(E).
l+11 compressed color difference signal [+' is a time division multiplexed signal of Fo'. Therefore, from the adder circuit 18, the luminance signal IE
Y is taken out, and the vA calculation circuit 19 outputs the above signal F+.
The time-division multiplexed signals ' and Eo' are phase-inverted one by one (with a waveform similar to that shown in FIG. 3(F) of the Linear 15) and are taken out. The time division multiplexed signal taken out from the subtraction circuit 19 is supplied to a terminal 22a of a switch circuit 22, and after its phase is inverted by an inverter 23, it is supplied to a terminal 22b of the switch circuit 22.

他方、加算回路１８から取り出された再生輝石信号は、
水平同期信号分離回路２４に供給され、ここで水平同期
信号が分前抽出された後スイッチングパルス発生回路２
５に供給される。スイッチングパルス発生回路２５は、
上記の再生水平同期信号と１や述する４　／　３１１”
ｉ間軸伸長回路２７より取り出された再生色差信号［■
どが夫々供給され、再生色差信号ＩＥ　＋の前記したバ
ーストレベルを検出し、それが正規の値（前記した如く
ホワイＩ・１００％を１としたとき約０．１１　）で得
られるような極↑１１で、かつ、再生水平同期（ｉｔ号
に位相同期しＩこ周期２１１の対称ス１１形波を発つト
し、この対称矩形波をスイッチングパルスとしてスイッ
チ回路２２に出力りる。これにより、スイッチ回路２２
は１１−目Ｑに交互に端子２２ａと２２１〕に切換接続
され、イの出力端Ｊ、り第３図（１−）に示したにう４
Ｔ、１１−１石の位相反転の除去された再生”時分割多
重信号か取り出され、次段の信ｒ−３分頭１回路２６に
供給される。On the other hand, the reproduced pyroxene signal taken out from the adder circuit 18 is
The horizontal synchronization signal is supplied to the horizontal synchronization signal separation circuit 24, where the horizontal synchronization signal is extracted in minutes, and then the switching pulse generation circuit 2
5. The switching pulse generation circuit 25 is
The above playback horizontal synchronization signal and 1 or 4/311”
The reproduced color difference signal [■
Detects the burst level described above of the reproduced color difference signal IE At ↑11, a symmetrical square wave with a period of 211 is generated in phase synchronization with the reproduction horizontal synchronization (IT), and this symmetrical rectangular wave is output as a switching pulse to the switch circuit 22.As a result, switch circuit 22
are alternately connected to the terminals 22a and 221] at the 11th terminal Q, and the output terminal J of A is connected to the terminal 4 shown in Fig. 3 (1-).
The reproduced time-division multiplexed signal from which the phase inversion of T, 11-1 phase inversion has been removed is taken out and supplied to the signal r-3 head 1 circuit 26 of the next stage.

信号分離回路２６は各１１４の最初から３／！Ｎ１期間
で伝送される時間！Ｉｌｌ　Ｉモ縮色差信号Ｅ＋’　は
、４　／　３　ｆｆ、′１間軸伸長回路２７へ出力し、
各１］」の残りの１　／　’１．　＋−１１１１１間で
伝送される時間軸圧縮色差信号［０′　は、４／１時間
軸伸長回路２８へ出力する。、／ｌ／３時間軸伸艮回伸
長７は上記イｚ号Ｆ＋’の時間軸を７′Ｉ／３に伸長Ｊ
ることに」、す、もとの時間軸に戻された再：を芭、Ｘ
−信号［１を発生して、スイッチングパルス発生回路２
５及び二［ンコーダ２９に人々出力・ｊる。他方、４／
１時間軸伸長回路２８は上記信＠、　Ｅ　、　ｒ　の時
間軸を４倍に伸長することに１二り、−ｔ）どのｌ）間
軸に戻された再生色差信号ＩＥ　Ｑを発生して、Ｊン］
−ダ２９へ出力覆る。The signal separation circuit 26 is connected from the beginning of each 114 to 3/! Time transmitted in N1 period! The reduced color difference signal E+' is outputted to the 4/3 ff, '1 axis expansion circuit 27,
1 of each]' remaining 1/'1. The time-base compressed color difference signal [0' transmitted between +-11111 is output to the 4/1 time-base expansion circuit 28. , /l/3 time axis extension 7 is the time axis of the above Iz number F+' is extended to 7'I/3 J
In particular, I was returned to the original timeline.
- generate the signal [1 and switch pulse generating circuit 2
5 and 2 [people output to encoder 29]. On the other hand, 4/
1. The time axis expansion circuit 28 expands the time axes of the signals @, E, and r by four times, and generates a reproduced color difference signal IE Q which is returned to the -t) which l) inter-axis. , Jn]
- Outputs to data 29.

エンコーダ２９は再生色差信号ＦＩ及びＥｏが夫々供給
され、これＪ：り例えばＮ　Ｔ　Ｓ　Ｃ方式に準拠した
搬送色イｈ号を生成して混合回路３４に出力する。The encoder 29 is supplied with reproduced color difference signals FI and Eo, respectively, and generates a carrier color number Ih based on, for example, the NTS C system, and outputs it to the mixing circuit 34.

ところで、スイッチ回路２１は入力信号を通過又は遮断
刀る回路で、再生水平同期信号を垂直ＩＦｉ＋期信月分
離回路３１及びＶブランキングパルス発生回路３２に順
次通過させることによつ−Ｃ得られた、卸直帰線ｄ１１
去朋間（Ｖブランキング期間）に対応Ｊる期間所定レベ
ルのＶブランギングバルスがスイッチングパルスどして
印加される。これににす、スイッチ回路２１は、垂直帰
線開開１ｙ１間中はオフどされて１１−１遅延回路２０
の出力信号の加諒回路１８への伝送を１麻断し、垂直帰
線Ｈ’Ｊ去期開期間以外間はＡンとされて上記の入力信
号を通過させる。By the way, the switch circuit 21 is a circuit that passes or blocks an input signal, and -C is obtained by sequentially passing the reproduced horizontal synchronizing signal to the vertical IFi + period signal/month separation circuit 31 and the V blanking pulse generation circuit 32. , wholesale direct return line d11
A V blanking pulse of a predetermined level is applied as a switching pulse for a period corresponding to the blanking period (V blanking period). In this case, the switch circuit 21 is turned off during the vertical blanking period 1y1, and the 11-1 delay circuit 20
The transmission of the output signal to the adder circuit 18 is cut off for one time, and the signal is set to A during periods other than the period when the vertical retrace line H'J is open, allowing the above-mentioned input signal to pass through.

ここ（゛、２４７１回路２１を段Ｇプだのは、周知の如
く、垂直同期信号の位相は、飛越し走査のために、１１
７故フイールドと偶数フィールドとでは１−１／２ｋ（
ノザれているが、クシ形フィルタによりこの重ＯＶ１同
１１１１信舅の１１ン２の位相ずれのために加算回路１
８にり取り出される再生輝度信号ＦＹの垂直同期イに号
が乱れるのを防ぐためである。従って、加Ｃｉｊ回路１
８．　Ｉ　Ｎ遅延回路２０及びスイッチ回路２１よりな
る輝度信号用くし形フィルタは、垂直帰線浦人期間中は
不動作とされ、この期間中ば力］１す１１回路１８から
は再生信号処理回路１７よりの再生輝度信号がイのよ；
Ｖ出力される。なｄ３、再生多重イ＾号はその重油帰線
消去ＷＩ間には色差信号はもど−ｂと存イ！していない
（ただし、垂直同明信号のｉＵＯ等化パルスの次から（
まハース１へ１ノベルは存在づる）。Here, the reason why the 2471 circuit 21 is stage Gp is that, as is well known, the phase of the vertical synchronizing signal is 11 for interlaced scanning.
7 Therefore field and even field are 1-1/2k (
Although it is visible, the addition circuit 1
This is to prevent the vertical synchronization signal FY of the reproduced luminance signal FY taken out at step 8 from being disturbed. Therefore, the addition Cij circuit 1
8. The luminance signal comb filter consisting of the IN delay circuit 20 and the switch circuit 21 is inactive during the vertical retrace period, and during this period the reproduction signal processing circuit 17 is transmitted from the 1-11 circuit 18. The reproduced brightness signal is better;
V is output. d3, there is no color difference signal between the heavy oil blanking WI and the reproduction multiplex I! (However, from the next iUO equalization pulse of the vertical domobright signal (
There is one novel for Hearth 1).

加算回路１８より取り出された再生輝度信号は、Ｉ　Ｎ
遅延回路２３ににす１１−１　遅延された後混合回路、
、３７′ｌに供給される。１１」遅延回路３３は、時間
１１１１伸長回路２７及び２Ｂにより信号が最低１１」
「延されるため、再生搬送色信号との時間合わせのため
に設置プられている。ｉ■？合ｌ路３／ｌは上記の再４
１：輝；廊伏５号と再生搬送色信号 Ｃ方式に略準拠しＩこ再〈４−ノＪラー映（ｑ（信号を
発（１し、この信号を出力端子３５へ出力η−る。The reproduced luminance signal taken out from the adder circuit 18 is I N
Delay circuit 23 11-1 Mixing circuit after being delayed,
, 37'l. 11'' delay circuit 33 has a signal of at least 11'' due to time 1111 expansion circuits 27 and 2B.
3/1 is installed in order to synchronize the time with the reproduced carrier color signal.
1: Bright; approximately in accordance with the reproduction carrier color signal C method of No. .

このように、本実施例にＪ、れば、１４Ｍ号［１を帯域
制限することなく、しかも狭９１＋域の記録再生帯域を
も−）＼／　’１−　Ｒでも充分に伝送覆ることができ
る帯域で、カラー映像信号を時分割多重信号と輝度信号
どの冬中信）号の形ｆ＆で記録再生りることができる。In this way, if J is used in this embodiment, even the narrow 91+ recording/playback band can be sufficiently covered by the 14M [1-R] without band-limiting. In the band, a color video signal can be recorded and reproduced in the form of a time division multiplexed signal and a luminance signal.

次に本発明装Ｆ／＋の第２実施例についてを１明Ｊ−る
に、第５Ｉλ１番３ｊ本発明装に９の第２実施例の記録
系のツ［］ツク系統図を示ず。本実施例はＳ「０ΔＭ方
式ル１格のヘリカルス：１−ヤン方式Ｖ　１”’　Ｒに
適用した例で、同図中、入力端子３７に入来したＳ　Ｆ
　ＣＡＭ方式カラー映像信号は低域フィルタ３８及び帯
域フィルタ３９に人々供給され、ｆＩ（域フィルタ３８
ににり輝度信号が分丙１ろ波され、帯域フィルタ３９に
」、り搬送色信号が分画ろ波される。Ｓ２Ｏ八Ｍ方〒（
の１ＩｒＪ送色信号（，１５、周知の如く、次式で示さ
れる色差化″；ＪＤＲで第１の搬送波４．４０６２！Ｉ
ＭＨｚを周波数変調して１ｑた＆８１のＦＭ色色差舅と
、色ジ′；−仁シ゛シ１〕１づて゛第２の搬送波’１．
ｌＩ２５Ｍ　ｌ−Ｉ　Ｚを周波数変調しく１８１だ第２
のＦ’　Ｍ色差伯列とが１１−目むに交Ｈに１１−１Ｍ
列的に合成された線順次信号である。Next, regarding the second embodiment of the present invention device F/+, a system diagram of the recording system of the second embodiment of the present invention device 9 is not shown. This embodiment is an example in which the S 0ΔM method is applied to the 1-rated helical: 1-Yang method V 1"'R, and in the figure, the S F input to the input terminal 37
The CAM color video signal is supplied to a low-pass filter 38 and a bandpass filter 39, and the fI (bandpass filter 38
The carrier chrominance signal is subjected to fractional filtering, and the carrier chrominance signal is fractionally filtered to the bandpass filter 39. S2O8M direction〒(
1IrJ color sending signal (, 15, as is well known, the color difference expressed by the following equation); in JDR, the first carrier wave 4.4062!I
Frequency modulation of MHz is performed to generate 1q &81 FM color difference and color shift ';
lI25M l-I Z to frequency modulation 181 2nd
The F' M color difference count series is 11-1M to 11-1M
This is a line-sequential signal synthesized column-wise.

ここで −（ある。たたし、−１式中、［Ｒ及びＥ、　＋３は万
ンマ補１１−シた赤及び青の原色信号、ＥｙはＮＴＳＣ
方式と同一ので１成式で表わされる輝度（ｇ号である。Here, -( exists. In the -1 formula, [R and E, +3 are the red and blue primary color signals with a ten thousand mark complement of 11-shita, and Ey is the NTSC
Since it is the same as the method, the brightness is expressed by one formula (number g).

上記の搬送（！！、伯号信号Ｍ復調器４０に供給され、
色差化８〔〕Ｒ及びＩ）Ｆｌからなる線順次色差信号に
１９調された後、スイッチ回路４１の９〃１：了４゛１
ａ及び４１　に　Ｔこ夫々供給される一方、１１−１遅
延回路７′Ｉ２を通してスイッチ回路／１．１の端子４
１１〕に供給される。スイッチ回路／１１は、低域フィ
ルタ３８Ｊ、り取り出された輝度信号を水平同期（１チ
号分饋回路／１８及び１ｚ２分周器／１９を夫々通して
得た２１１Ｉ？、１！υ］の対称矩形波により、１１」
毎に端子’ｌ　１　ｉｆトＡ　１　ｌ）　１７）人力（
ｒｊ３’＋ヲ交’ｌ　ニＧｅｔ　了／Ｉ　１　ｄ　にり
選択出力Ｊると１しに、端子４　ｌ　ｂと４．　Ｉ　Ｃ
の人力信号を交ｎに端子４１ｅより選択出力するＪ、）
（。ニスイツブング制御される。これにより、０Ｍ：了
’＋１ＣＩからは同じ１１−（期間の色Ｘ二信号Ｄｔｔ
が２１−１ずつ出力されて１、−’　２時間１１１１１
　ｆｆ幅開回路４３供給サレ、１（た端子／、　１　ａ
からは同Ｕ　１１−１１！ｌ１間の色８イーｆ言４Ｄ１
（が２１−１ずつ出力されて１　／　２１１：’ｊ間輔
圧紺１回路／ｌ／ｌに供給される１、 上記の色差化８Ｄ［？及びＤ　ｎは夫々同一の帯域（約
１．３Ｍｆ−１ｚ）を占有η−るベースバンド信号（゛
あるから、■、１間軸月−縮回路／１３．４４により■
、１間軸を１／２に圧縮されると、その帯域が　２．６
Ｍ１−１７　（＝　１．’３Ｍｌ＋７−：　（１／２＞
　）に４ｆる１、１旧１１１軸圧縮回路４３及び／ｌ／
ｌより取り出されたｌｌ、ｌｉ間ｔｌｌｌ＋圧縮色ンこ
イｉ４弓Ｄ　＋ｚ　’　及びＤｎ’ｉ；を合成回路４５
に供給され、ここでＩｌ？ｊ分割多Ｔ側条号（信号換さ
れた後、スイツー（＋ｓ１＋路／ｌ（５の端子４６　ａ
に供ｍ８ｎる　＋５、インバータ／１７を通１］でスイ
ッチ回路４６の端子４６１）に供給される。上記の色差
信号ＤＲ及び１つＢにλ１′ｔＩる時間圧紺ｉ宰はＪ（
ｌこ１／２ζ゛あり、両者を加算づると１となるから、
第１実施例と同様１：　１１５　間り’Ｉｌｌ　ｆｔ：
線色；Ｈ’、１Ｎｒ）＋ｔ　’　、　ＤＢ’　（Ｄ各１
　ｌ−１１１ＪＩ間の情報は、」二記時分側条重信号中
の１１−１１１１１間で過不足なく伝送りることができ
る。また上記時分割多重１曹舅の帯域は約２．６Ｍ　ｌ
−Ｉ　７であり、これ（，１一般家医用＼／　Ｔ　Ｒで
６充分Ｓ／Ｎ良く記録再生Ｍることがて゛さる帯域であ
る。The above carrier (!!) is supplied to the Hakugo signal M demodulator 40,
Color difference conversion 8 [] R and I) After being converted into a line-sequential color difference signal consisting of Fl, 9〃1 of the switch circuit 41: 4゛1
A and 41 are respectively supplied with T, while terminal 4 of switch circuit/1.1 is supplied through delay circuit 7'I2 of 11-1.
11]. The switch circuit/11 uses a low-pass filter 38J to horizontally synchronize the extracted luminance signal (211I?, 1!υ obtained by passing it through a 1st frequency divider circuit/18 and a 1z2 frequency divider/19, respectively). 11'' due to the symmetrical square wave
terminal 'l 1 if A 1 l) 17) Human power (
rj3'+interchange'l ni Get completed/I 1 d select output J and 1, terminals 4 l b and 4. IC
Selectively output the human input signal from the terminal 41e (J,)
(The switching is controlled. As a result, the same 11-(period color X two signals Dtt
is output in increments of 21-1, 1, -' 2 hours 11111
ff width open circuit 43 supply sale, 1 (ta terminal/, 1 a
From the same U 11-11! Color between l1 8e f word 4D1
(is output in units of 21-1 and supplied to 1/211:'j intersuppression blue 1 circuit/l/l. -1z) occupies η- baseband signal (because there is,
, when the axis between 1 and 1 is compressed by 1/2, the band becomes 2.6
M1-17 (= 1.'3Ml+7-: (1/2>
) to 4f 1, 1 old 111 axis compression circuit 43 and /l/
Synthesizing circuit 45 extracts ll and li from tll + compressed color i4 bow D + z' and Dn'i;
where Il? j division multi-T side row number (after signal exchange, sweets (+s1+road/l(5 terminal 46a
It is supplied to the terminal 461) of the switch circuit 46 through the inverter /17. The time pressure λ1'tI applied to the above color difference signal DR and one B is J(
Since there is lko1/2ζ゛, and adding both together, it becomes 1,
Same as the first embodiment 1: 115 interval 'Ill ft:
Line color: H', 1Nr) + t', DB' (D each 1
The information between 1-111JI can be transmitted in just the right amount between 11-11111 in the time/minute side load signal. In addition, the bandwidth of the above time-division multiplexing device is approximately 2.6 Ml.
-I7, which is the band in which it is possible to record and reproduce data with a sufficiently high S/N ratio in a general medical use/TR.

スイン１−回路／１６は前記の１！２分周器４つからの
２Ｈ周期の対称矩形波により１１−１毎に交１７に端子
／１６ａ、／１６ｂの入力信号を切換出力Ｊるようにス
イッチング制御されるため、スイッチ回路／１６からは
１）口むに位相反転された時分割多重信号が取り出され
−（混合回路５０に供給される。The switch 1-circuit /16 switches and outputs the input signals of the terminals /16a and /16b to the alternating current 17 every 11-1 using the symmetrical rectangular wave of 2H period from the four 1!2 frequency dividers mentioned above. Since the switching is controlled, 1) a time-division multiplexed signal whose phase has been inverted is taken out from the switch circuit /16 and supplied to the mixing circuit 50;

〜方、低域フィルタ３８よりの輝度信号ＦＹは、時間合
わＵのための１１−１遅延回路５１を通して混合回路５
０に供給される。混合回路５０は時間軸圧縮されていイ
ｆい輝度信号と、上記の１１１毎に位相反転ざねた時分
割多重信号との多重情死を発／ｊして、この多重信号を
磁気記録再生に適した信号形態に変換り−るＩこめの記
録信号処理回路５２を通して出力端子５３へ出力する。On the other hand, the luminance signal FY from the low-pass filter 38 is passed through the 11-1 delay circuit 51 for time adjustment U to the mixing circuit 5.
0. The mixing circuit 50 generates a multiplex of the time-base compressed brightness signal and the above-mentioned time-division multiplexed signal whose phase is inverted every 111 times, and makes this multiplexed signal suitable for magnetic recording and reproduction. The recorded signal is outputted to an output terminal 53 through a recording signal processing circuit 52 which converts it into a signal format.

次に再生系について説明Ｊ−るに、第６図は本発明装置
ｒＩの第２実施１９１の再生系の１０ツク系統図を示Ｊ
−０同図中、絹４図と同一構成部分には同−司「１をイ
マ１し、その説明を省略する１、第６図におい−Ｃ１入
力端子５５に入来した再生（１１号はｍ／＋、信号処理
回路５６に供給され、ここで第５図の混合回路５０の出
力多単信号ど同じ侶舅形態の多重１宮号に変換された後
、加算回路１８．減瞳回路１９及び１１−１＊延回路２
０に大々供給される。Next, the regeneration system will be explained. Figure 6 shows a 10-step system diagram of the regeneration system of the second embodiment 191 of the apparatus rI of the present invention.
-0 In the same figure, the same components as in Fig. 4 are shown in Fig. 1, and the explanation thereof is omitted. m/+, is supplied to the signal processing circuit 56, where the output multi-signal signal of the mixing circuit 50 in FIG. and 11-1* extension circuit 2
Largely supplied to 0.

減の回路１９より取り出された１１−目Ｆｊに位相反転
された再生時分側条Ｉ　信号は、スイッチ回路５７に供
給され、ここＣスイッチングパルス介牛回路５９により
Ｆｉ牛水平同期信号と、後）ボの２、・７１時時間軸長
回路５８よりの再生輝度信号のパーストレベルの検出信
号とから生成された、２　）−１１１’、１ｉｉ１ｉの
対称グ、［１形波にＪ：す、１１１期間おき角に間欠的
に正の極↑）１のイ菖刈だけが選択出力される。このス
イッチ回路５７Ｊ、り間欠的に取り出された正の極性の
再生時分割多重信号は２！１時間軸伸長回路５８に供給
され、ここで［，１間軸を２倍に伸長され℃らどの１１
．１間軸に戻される。従って、２　／　Ｉ　Ｉｌ、？間
輔伸長回路！：）８からｔよ色差信号１〕日とＤｎとが
夫々１１１１＋４に交２７　ｔ５１１．１．系列的に合
成された線順次色差（１；月がもどの１１１間Φ＋Ｉ＋
で取り出され、この線順次色差信号は周波数変調器６０
に供給され、ここで周波数変調されｌ　Ｓ　Ｆ　ＣＡＭ
方式に準拠した搬送色イＪ１シづとされる。The phase-inverted reproducing time side line I signal taken out from the subtraction circuit 19 to the 11th Fj is supplied to the switch circuit 57, where the C switching pulse control circuit 59 outputs the Fi horizontal synchronization signal and the signal afterward. ) 2, 71 o'clock generated from the detection signal of the burst level of the reproduced luminance signal from the time axis length circuit 58, 2) -111', 1ii1i symmetrical wave, [J:su, Only the positive pole ↑) 1 irises is selectively output intermittently every 111 periods. The positive polarity reproducing time division multiplexed signal intermittently taken out by this switch circuit 57J is supplied to a 2!1 time axis expansion circuit 58, where the axis between [, 1 and 1 is expanded twice. 11
．． It is returned to the axis for 1 time. Therefore, 2/I Il,? Masuke extension circuit! :) From 8 to t, the color difference signal 1] day and Dn intersect 1111+4, respectively.27 t511.1. Line-sequential color difference (1; between 111 and Φ+I+
This line-sequential color difference signal is extracted by a frequency modulator 60.
, where it is frequency modulated l S F CAM
The transport color is J1 in accordance with the method.

この搬送色信号は混合回路６１に供給され、ここｒ　１
１−１遅延回路３３よりの再生輝度信号と多重され、Ｓ
　Ｅ　ＣＡ　Ｍ方式に準拠した再生カラー映像信号どし
て出力端子６２へ出力される。This carrier color signal is supplied to a mixing circuit 61, where r 1
It is multiplexed with the reproduced luminance signal from the 1-1 delay circuit 33, and
The reproduced color video signal conforming to the ECAM system is output to the output terminal 62.

応用例 なａ３、木光明（４，１記の実施例に限定されるもので
はなく、その他種々の応用例が考えられるものである。Application example a3, Kikomei (the present invention is not limited to the embodiment described in 4.1, and various other application examples are possible).

例えば第１及び第２実施例の記録系では、１ｋ１４間軸
圧縮し／こ２（・Ｆ類の色差信号を時分ｉ’ｈｌ多ｌ口
した後に、１　ｌ−ｌ　ｉｎに（Ｃ／相反転りる処理を
行なったが、回路＋ｉ／＋成は名干複刹１どなるが、時
間軸圧縮された２種類の色差信号の夫々に対して１１−
１毎に位相反転する処理を行なってから両信号を合成し
て、１ｉ＠毎に位相反転された時分割多重信号を１！す
る。Ｊ、うにして−６よい。また、再生系に、＋３いて
は、第１図の場合は減幹回路１９の出力からｊ−ン］−
ダ２９の入力に到る回路部、第５図の場合はＦＭ復調器
−〇の出力から混合回路５０の人力に到る回路部はその
他の応用例が考えられ、第６図の場合は回路５７ど０８
とを入れ代えるイｆどの応用例も考えられる。また、第
４図に示したスイッチングパルス発生回路２５は時間軸
伸長回路２　Ｆ’＋　Ｊ：りの再生色差信号［Ｑのパー
ストレベルを検出し、その検出結電に基づ゛いてスイッ
チングパルスの１セヤｌを選定Ｊるよう構成してもにい
。For example, in the recording systems of the first and second embodiments, after compressing the axis by 1k14/2(・F class color difference signals in i'hl times per hour), Although the inversion processing was performed, the circuit +i/+ circuit is complex, but it is 11-1 for each of the two types of time-axis compressed color difference signals.
After performing phase inversion processing every 1, the two signals are combined, and the time-division multiplexed signal whose phase is inverted every 1i@ is converted into 1! do. J, Utoshi-6 good. In addition, if +3 is added to the reproduction system, in the case of FIG.
The circuit section leading to the input of the FM demodulator 29 in the case of FIG. 5, and the circuit section leading to the human power of the mixing circuit 50 in the case of FIG. 57do08
Any application example can be considered if the and. The switching pulse generation circuit 25 shown in FIG. 4 detects the burst level of the reproduced color difference signal [Q] of the time axis expansion circuit 2 F' It is also possible to configure it so that only one person is selected.

また、本発明は［〕〕Ａ１一方式カラー映像信号こ適用
りること６できる。この場合、ｌ１ｒＪ送邑信８は０．
４９３（Ｆｅ　−’Ｅｖ　）で表わされる第１の色差信
号「（）と、０．８７７　（Ｅ　＋で−ＦＥＹ）で表わ
される第２の色差信Ｓ　Ｅ　ｙとで、所定の搬送波を１
１０送波抑Ｌ１直角二相振幅変調しく得られた被変調波
であり、色Ｚ：信号「Ｖの搬送波はＩ　Ｎ毎に位相反転
せしめられることは周知の通りである。この色差信号［
Ｌｌ　、　［Ｖ　ｆ７）：ｉｉ’（１＋１はどれらも約
１．３Ｍ　ｌ−１ｚで等しく、よってＳ［△ＣＡＭ方式
と同様に、記録時には１／２に助Ｉｔ’ｌｌ軸圧縮され
、再生時には２／１に時間軸伸長される。１１．１間軸
圧縮後の帯域は約２．６Ｍ１１ｚであり、一般家庭用Ｖ
ＴＲによりほぼ完全に記録書牛刀−ることかできる。Further, the present invention can be applied to []] A1 one-way color video signal. In this case, l1rJ send village signal 8 is 0.
A predetermined carrier wave is converted to
It is a modulated wave obtained by L1 quadrature two-phase amplitude modulation, and it is well known that the phase of the carrier wave of the color Z signal "V is inverted every I N. This color difference signal [
Ll, [V f7): ii'(1+1 are all equal to about 1.3M l-1z, so S[As with the △CAM method, it is compressed to 1/2 during recording, and during playback Sometimes the time axis is expanded by 2/1.The band after 11.1 axis compression is about 2.6M11z,
With TR, it is possible to almost completely record the records.

本発明では、上記の時間軸圧縮率は次のＪ：うにし−Ｃ
選定される。づなわち、帯域Ｂ　Ｗ　＋を有ザる第１の
色差信号Ｅ１と、帯域Ｂ　Ｗ　２を有する第２の色差信
号Ｆ２のうち、第１の色差信号Ｅ１に対してはＢＷＩ　
／　（ＢＷＩ　＋ＢＷｚ　）に時間軸圧縮し、第２の色
差信号Ｆ２に対してはＢＷ２／（ＢＷＩ＋ＢＷ２）に時
間軸圧縮づる。これにＪ：す、時間軸圧縮された第１．
第２の色差信号のＷＩ域は、共にＢＷｔ＋ＢＷ２で表わ
される、ＶＴＲで帯域Ｒ１１１限されることなく伝送で
きる帯域となり、しかも両口差信ｇの１１．’を間輔斤
縮率ＢＷ＋　／　（ＢＷｌ　＋ＢＷ２）とＢ　Ｗ２／　
（Ｂ　Ｗ＋　十Ｂ　Ｗ２　）との和が１と４するから、
置時間軸圧縮信号の各１ｌ−（Ｈｔ１間の信号部分を、
時分割多重信号の１Ｈ期間内で過不足なく伝送゛づ−る
ことができる。In the present invention, the above time axis compression ratio is as follows: J: Sea urchin-C
Selected. That is, of the first color difference signal E1 having the band B W + and the second color difference signal F2 having the band B W 2, the BWI
/ (BWI +BWz), and for the second color difference signal F2, the time axis is compressed to BW2/(BWI+BW2). In this, J:Su, the time-axis compressed 1st.
The WI range of the second color difference signal is both expressed as BWt+BW2, which is a band that can be transmitted without being limited to band R111 in a VTR, and 11. ' is the interstitial contraction rate BW+ / (BWl +BW2) and B W2/
Since the sum of (B W+ 10B W2) is 1 and 4,
The signal portion between 1l and (Ht1) of the time axis compressed signal is
It is possible to transmit just enough or too little within the 1H period of the time division multiplexed signal.

また、本発明はＶＴＲに適用される場合に限らず、円盤
状磁気シートやディスクなどの記録媒体に伏目を記録し
、これを再生ηる装置ｄにも適用することができるもの
である。Further, the present invention is not limited to being applied to a VTR, but can also be applied to an apparatus d that records bind-off marks on a recording medium such as a disc-shaped magnetic sheet or a disk, and reproduces the data.

動電 上述の如く、本発明ににれば、記録時には時間軸圧縮し
た２種類の色差信゛号が１１−１明間内に時分割多重さ
れてなり、かつ、１１１毎に位相反転され゛（いるＩＴ
！ｉ分割多重信号を、時■１軸圧縮をしない輝磨信号に
多重した信号を記録し、再生時はくし形フィルタを用い
て再生信号から輝度信号と上記時分割多重信号とを夫々
分１ｌＩＩｉ　ろ波し、時分割多重信号の上記１ｌ−１
ｆｆｊの位相反転を除去してから２種類の時間軸圧縮色
差信号に対して別々にもとの時間軸どなるように時間軸
伸長を行ない、この信号から所望標準プレビジョン方式
（ＮＴＳＣ方式、１つへ［−６式又はＳＦＣＡＭ方式）
に準拠した搬）ス色信号を生成するようにしたから、前
記した低域変換記録再生方式の種々の問題点を悉く解決
することができ、またｉＩ′＋１一度信号に対して時間
軸の圧縮及び伸長処理は全く行なわないので、従来のタ
イムフレックス方式に比し、回路構成を簡単、かつ、安
価にザることかでき、更に水平同期信号をそのまま伝送
しているから、水平同期信号を所定位冒に挿入するとい
う従来のタイムフレックス方式に比し、水平同期４８号
の処理（取扱い）が容易である。また史に時間軸圧縮率
は帯域ＢＷ＋　、ＢＷ２の第１．第２の色差信号記録再
生時には、第１の色差信号に３・１してはＢＷＩ　／　
（ＢＷｔ　＋ＢＷ２）どし、第２の色ｂｑ　ｌ３号もこ
対してはＢＷ２　／　（ＢＷＩ　＋ＢＷ２＞としたので
、両信号共に時間軸圧縮後の帯域をＢ　Ｗ　ｒ　十Ｂ　
Ｗ’２とすることがでさ、従来のタイムプレックス方式
の如くＩ信号の帯域を制限η−ることはイＴく、狭い記
録再生帯域でもＩ信号を略完全に伝送することができ、
しかも上記の時間軸圧縮率の和が１となるから、内時間
軸圧縮色差信号の各１１＝１期間の信号部分を、時分割
多重信号の１１−１明間内で過不足なく、最も効率的に
伝送づることがて・きる。Ｊ、た更に、前記くし形フィ
ルタは再生輝度信Ｖ；の垂直帰線潤ム期間中１，１不動
作とされるので、奇数フィールドとｆｆ１ｌ数フイール
ドとで）１／２だけ位相が異なる垂直向！ｔｌｌ信月の
信号が乱れることを防止することができ、更に標Ｌ１（
テレビジョン方式で共通の信号）Ａ−マットで記録両生
η“ることができる舌の数々の特長を有するしのである
。Electrodynamics As described above, according to the present invention, during recording, two types of time-axis compressed color difference signals are time-division multiplexed within the 11-1 light interval, and the phase is inverted every 111. (IT
! A signal obtained by multiplexing an i-division multiplexed signal with a brightness signal that is not subjected to time-1 axis compression is recorded, and during playback, a comb filter is used to filter the luminance signal and the above time-division multiplexed signal from the reproduced signal by 1lIIi. and the above 1l-1 of the time division multiplexed signal
After removing the phase inversion of ffj, the two types of time-axis compressed color difference signals are subjected to time-axis expansion to the original time axis, and from this signal, the desired standard prevision system (NTSC system, one to [-6 type or SFCAM method)
Since the system generates a color signal based on the carrier), it is possible to solve all the problems of the low-frequency conversion recording and reproducing method described above, and also to compress the time axis for the iI'+1 signal. Since no expansion processing is performed at all, the circuit configuration can be made simpler and cheaper than the conventional time flex method.Furthermore, since the horizontal synchronization signal is transmitted as is, the horizontal synchronization signal can be transmitted anywhere. Compared to the conventional time flex method in which the signal is inserted into the stereotaxic region, processing (handling) of the horizontal synchronization signal No. 48 is easier. Also, historically, the time axis compression ratio is the first of the bands BW+ and BW2. When recording and reproducing the second color difference signal, the first color difference signal is multiplied by 3.1 and the BWI/
(BWt +BW2) However, since the second color bq l3 is also set as BW2 / (BWI +BW2>, the band after time axis compression for both signals is B W r +B
By setting W'2, it is not necessary to limit the I signal band as in the conventional time-plex method, and the I signal can be almost completely transmitted even in a narrow recording/reproduction band.
Moreover, since the sum of the above time-axis compression ratios is 1, the signal portion of each 11=1 period of the inner time-axis compressed color difference signal is most efficiently It is possible to transmit data. In addition, since the comb filter is inactive during the vertical retrace period of the reproduced luminance signal V; Heading! It is possible to prevent the tll Shingetsu signal from being disturbed, and furthermore, the
It has a number of features that allow it to be recorded on the A-mat (common signal in television systems).

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

第１図は従来のタイムブレックス方式ににり記録される
時分割多重信弓波形の一例を示づ図、第２図及び第４図
は夫々本発明装置の第１実施例の記録系及び再生系を示
すブロック系統図、第３図（Ａ）〜・（Ｇ）は夫々第２
図のブロック系統の動作説明用タイムチｒ−１−１第５
図及び絹６図は夫々本発明装置の第２実施例の記録系及
び再ｑ−系を示−リブロック系統図である。 １・・・ＮＴＳＣ方式カラー映像信号入力端子、４・・
・デコーダ、５・・・３／４時間軸圧縮回路、６・・・
１／／１時間軸圧縮回路、７．４５・・・合成回路、８
゜２１．２２，４１．４６．５７・・・スイッチ回路、
１０．２／１．４８・・・水平同期信号分離回路、１３
゜３４．５０．６１・・・混合回路、１６．５５・・・
再生信号入力端子、２０，３．３，４２．５１・・・１
１」遅延回路、２５．５９・・・スイッチングパルス発
生回路、２６・・・信号分前回路、２７・・・３／４時
間軸伸長回路、２８・・・４／１時間軸伸長回路、２９
・・・エンコーグ、３１・・・垂直同期信号分離回路、
３２・・・Ｖブランキングパルス発生回路、３５．６２
・・・再生カラー映像信号出力端子、３７・・・ＳＥＣ
ＡＭ方式カラー映像信号入力端子、４３．／Ｉｆ／ｌ・
・・１／２時間軸圧縮回路、５８・・・２／１時間６０
伸長回路、６０・・・周波数変調器。FIG. 1 is a diagram showing an example of a time division multiplexed signal waveform recorded using the conventional time plex method, and FIGS. 2 and 4 respectively show the recording system and reproduction system of the first embodiment of the apparatus of the present invention. Block system diagram showing the system, Figures 3 (A) to (G) are the second
Time chart r-1-1 No. 5 for explaining the operation of the block system in the figure
Figure 6 and Figure 6 are reblock system diagrams showing the recording system and req-system of the second embodiment of the apparatus of the present invention, respectively. 1...NTSC color video signal input terminal, 4...
・Decoder, 5...3/4 time axis compression circuit, 6...
1//1 Time axis compression circuit, 7.45...Synthesis circuit, 8
゜21.22, 41.46.57...Switch circuit,
10.2/1.48...Horizontal synchronization signal separation circuit, 13
゜34.50.61...Mixing circuit, 16.55...
Reproduction signal input terminal, 20, 3.3, 42.51...1
1" delay circuit, 25.59... switching pulse generation circuit, 26... signal advance circuit, 27... 3/4 time axis extension circuit, 28... 4/1 time axis extension circuit, 29
...Encog, 31...Vertical synchronization signal separation circuit,
32...V blanking pulse generation circuit, 35.62
...Reproduction color video signal output terminal, 37...SEC
AM color video signal input terminal, 43. /If/l・
...1/2 time axis compression circuit, 58...2/1 hour 60
Expansion circuit, 60...frequency modulator.

Claims (4)

【特許請求の範囲】[Claims] （１）帯域Ｂ　Ｗ　＋を右する第１の色差信号と帯域１
３　Ｗ　２を右する第２の色差信号のうＪう該第１の色
差１３円をＢＷ＋　／　（ＢＷ＋　＋［３Ｗ２）　に時
間軸圧縮して第１の時間軸圧縮色差信号を出力すると共
に、該第２の色差信号をＢＷ２／（Ｂ　Ｗ　＋　＋１３
　Ｗ　２）に＋＋ｓ７間軸圧縮して第２の時間軸圧縮色
差信号を出力覆る時間軸圧縮回路と、該時間軸圧縮回路
Ｊ：りの該第１及び第２の時間軸圧線色差信￥づを交１
１に時系列的に合成重ると共に、１水平走査期間毎に（
Ｉ’７相反転して時分割多重信号をｊ！ｌる回路と、該
時分割多重信号と時間軸圧縮が行２’ｔわれてい４ｉい
輝度信号どを夫々多重づる第１の混合回路と、該第１の
混合回路の出力多山信号を記録媒体に記録する手段と、
該記録媒体に記録されでいる該多重信号を再生づるＩ１
１１手段と、該再生多重信号から該時分割多重信号と該
輝度信号とを夫々別々に弁頭して出力するくし形フィル
タと、該くし形フィルタＪ：りの再生時分割多重信号を
該くし形フィルタよりの再生輝度信号中の水平同期信号
から生成したスイツヂング信号に基づいて前記１水平走
査期間毎の位相反転の除去された再生時分割多重信号を
１９るスイツヂ回路手段と、該スイツヂ回路手段にりの
再生時分割多重信号が供給されもどの時間軸に戻された
該第１及び第２の色差信号の再生信号を得る時間軸伸長
回路と、該第１及び第２の色差信号の再生信号から所望
の標ｉ（テレビジョン方式に準拠した搬送色信号を生成
する回路と、該搬）Ｘ色信号と該くし形フィルタよりの
再生輝度信号とを夫々多重しその多重信号を再生カラー
映像信号として出力する第２のｔＰ合回路とＪ、す４す
ることを特徴どするカラー映像信号の記録再生装置。”(1) First color difference signal to the right of band B W + and band 1
The first color difference 13 yen of the second color difference signal corresponding to 3 W 2 is time-axis compressed to BW+ / (BW+ + [3W2) and the first time-axis compressed color difference signal is outputted, The second color difference signal is BW2/(B W + +13
W 2) A time axis compression circuit that compresses the axis between ++s7 and outputs a second time axis compressed color difference signal, and the time axis compression circuit J: Rino's first and second time axis pressure line color difference signals. Cross 1
1 in time series, and for each horizontal scanning period (
I'7 phase inversion and time division multiplexed signal j! a first mixing circuit that multiplexes the time-division multiplexed signal and the 4i luminance signal that has not been subjected to time axis compression, and records the output multi-peak signal of the first mixing circuit. a means for recording on a medium;
I1 for reproducing the multiplexed signal recorded on the recording medium;
11 means, a comb filter for separately outputting the time division multiplexed signal and the luminance signal from the reproduction multiplexed signal, and the comb filter J: for outputting the time division multiplexed signal and the luminance signal separately from the reproduction multiplexed signal; switching circuit means for generating the reproduced time division multiplexed signal from which the phase inversion for each horizontal scanning period has been removed based on the switching signal generated from the horizontal synchronization signal in the reproduced luminance signal from the shaped filter; A time axis expansion circuit that obtains reproduced signals of the first and second color difference signals returned to any time axis even if a time division multiplexed signal is supplied; and a time axis expansion circuit that reproduces the first and second color difference signals. A circuit that generates a carrier color signal based on the television system, and a circuit that generates a carrier color signal based on the television system, multiplexes the X color signal and the reproduced luminance signal from the comb filter, and reproduces the multiplexed signal as a color image. A recording/reproducing device for color video signals, comprising a second tP combining circuit for outputting signals. ” （２）　該くし形フィルタは再生輝度信号のｙ１′！直
帰線演去期間中（Ｊ、非動作とされて該再生多重信号を
再生輝度信号としてそのまま出力することを１Ｊ１微と
する特訂ｉｉｉ’＋求の範囲第１項記載のカラー映像イ
、１弓の記録１１生”Ａ回。(2) The comb filter uses y1'! of the reproduced luminance signal. During the direct retrace line processing period (J, the reproduction multiplexed signal is output as it is as the reproduced luminance signal during the non-operation period, 1J1 minute). 1 bow record 11th grade "A times. （３）　該スイツブ回路手段は、該時間軸伸長回路より
のＪｈ第１の色ＺＦ他信号再生信号又は該第２の邑差信
２づの再生信号の色基準の直流レベル又（まバーストレ
ベルを検出して得た信号によって定められた極性の該ス
イッチング信号に基づいてスイッチングを行なうことを
特徴とする特許請求の範囲第１項又は第２項記載のカラ
ー映像信号の記録再生装置。(3) The switch circuit means adjusts the color reference DC level or (or burst level) of the Jh first color ZF other signal reproduction signal or the second color difference signal 2 reproduction signal from the time axis expansion circuit. 3. The color video signal recording and reproducing apparatus according to claim 1, wherein switching is performed based on the switching signal having a polarity determined by the signal obtained by detecting the color video signal. （４）　該第１の色差信号はｌ信号であり、かつ、該第
２の色差信号（，１Ｑ信号であり、該時間ｌｌ１１１１
圧縮回路は該ｌ信号を３／４に時間軸圧縮すると其に、
該０イ乙弓を１／／ｌに時間軸圧縮することを特徴どづ
る！１１！ｉ訂品求の範囲第１項乃至第３項のう）うい
ずれか−項記載のカラー映像信号の記録再生装置、？ｉ
　。(4) The first color difference signal is the l signal, and the second color difference signal (,1Q signal, and the time ll1111
When the compression circuit compresses the time axis of the l signal to 3/4,
It is characterized by compressing the time axis from 0 to 1//l! 11! A color video signal recording and reproducing device as described in any one of items 1 to 3 of the revised product request. i
.