JPH02200077A - Video recording and reproducing device - Google Patents
Video recording and reproducing deviceInfo
- Publication number
- JPH02200077A JPH02200077A JP1020037A JP2003789A JPH02200077A JP H02200077 A JPH02200077 A JP H02200077A JP 1020037 A JP1020037 A JP 1020037A JP 2003789 A JP2003789 A JP 2003789A JP H02200077 A JPH02200077 A JP H02200077A
- Authority
- JP
- Japan
- Prior art keywords
- head
- recording
- video
- circuit
- video signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、同期した２つ映像信号を交互に片フィールド
ずつ間欠記録し、再生時には２つ映像信号を独立に再生
することが可能な映像記録再生装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a video recording/playback method that allows two synchronized video signals to be recorded intermittently one field at a time, and that allows the two video signals to be played back independently during playback. It is related to the device.
従来の技術
近年、映像記録再生装置−特にビデオテープレコーダＣ
以下ＶＴＲと略す）は、セキュリティー分野にも広く普
及し、銀行やスーパーなどの監視用ＶＴＲとしても、使
用されるようになってきた。BACKGROUND OF THE INVENTION In recent years, video recording and reproducing devices, especially video tape recorders C.
VTRs (hereinafter abbreviated as VTRs) have become widespread in the security field, and are also being used as surveillance VTRs in banks, supermarkets, and the like.
監視用ＶＴＲの中には、１台のＶＴＲで数台のカメラ入
力を切換えて記録できるものがある。Some surveillance VTRs are capable of recording by switching inputs from several cameras with one VTR.
以下１図面を参照しながら、上述した従来の映像記録再
生装置の一例について説明する。An example of the above-mentioned conventional video recording and reproducing apparatus will be described below with reference to one drawing.
第４図は、従来の映像記録再生装置のシリンダーとヘッ
ド構成であり、第６図は第４図のシリンダーによってフ
ィールド間欠記録を行う際のタイミングチャートを示す
ものである。第４図において−４１は第１のアジマスを
持つ第１ヘッド（Ｒヘッド）で、４２は第２のアジマス
を持つ第２ヘッド（Ｌヘッド）で−４３は回転シリンダ
ーである。、第６図において、６１は第１のカメラ入力
映像信号で、６２は第２のカメラ入力映像信号で、６３
け間欠記録のインターバル期間中に６１と６２の信号を
切換えた信号で−６４は第４図のＲヘッドとＬヘッドを
切換えるスイッチングパルスで、６６は磁気テープ上に
信号を記録するタイミングを示す記録ゲートパルスであ
る。FIG. 4 shows a cylinder and head configuration of a conventional video recording and reproducing apparatus, and FIG. 6 shows a timing chart when intermittent field recording is performed using the cylinder of FIG. 4. In FIG. 4, -41 is a first head (R head) having a first azimuth, 42 is a second head (L head) having a second azimuth, and -43 is a rotating cylinder. , in FIG. 6, 61 is a first camera input video signal, 62 is a second camera input video signal, and 63 is a first camera input video signal.
The signals 61 and 62 are switched during the interval period of intermittent recording. -64 is a switching pulse that switches between the R head and the L head in Fig. 4, and 66 is a recording signal that indicates the timing of recording signals on the magnetic tape. It is a gate pulse.
以上のように構成された従来の映像記録再生装置につい
て一以下その動作について説明する。The operation of the conventional video recording and reproducing apparatus configured as described above will be explained below.
まず、第６図に示すように、６１の第１のカメラ入力映
像信号は、図中ａのタイミングで１フイ一ルド分第４図
の４１のヘッドで磁気テープ上に記録される。次に図中
すのタイミングで６２の第２のカメラ入力映像信号が第
４図の４２のヘッドで１フメ一ルド分磁気テープ上に記
録される。以下この動作を繰り返してフィールド間欠記
録を行ってい〈。以上のように記録された磁気テープを
通常再生する場合−１フイールドずつ、第１のカメラ入
力映像信号と第２のカメラ入力映像信号が交互に再生さ
れ１通常再生画像をみると非常にわかりにぐいものとな
る。First, as shown in FIG. 6, a first camera input video signal 61 is recorded on a magnetic tape by a head 41 in FIG. 4 for one field at timing a in the figure. Next, at the timing shown in the figure, 62 second camera input video signals are recorded on the magnetic tape for one frame by the head 42 in FIG. This operation is then repeated to perform intermittent field recording. When a magnetic tape recorded in the above manner is normally played back, the first camera input video signal and the second camera input video signal are played back alternately, field by field.It is very clear when looking at the normal playback image. It becomes a thing.
発明が解決しようとする課題
しかしながら上記のような構成では、１フイールドずつ
交互に記録された磁気テープを通常再生すると、２つの
映像信号が交互にあられれるので。Problems to be Solved by the Invention However, with the above configuration, when a magnetic tape on which fields are alternately recorded is normally reproduced, two video signals are alternately generated.
非常にわかりにくい再生画像となるという問題点を有し
ていた。This has the problem that the reproduced image becomes very difficult to understand.
本発明は上記問題点に鑑み、フィールド間欠記録された
テープを２倍速以上で走行させ、記録時のヘッド幅より
広いヘッド幅のヘッドを用いることにより、２つの映像
信号がフィールド毎に交互に記録された磁気テープを再
生した場合でも、２つの映像信号を区別して再生するこ
とを可能とし念映像記録再生装置？提供するものである
。In view of the above-mentioned problems, the present invention runs a tape with intermittent field recording at twice the speed or higher, and uses a head with a head width wider than the recording head width, so that two video signals are recorded alternately for each field. A telephonic video recording and reproducing device that can distinguish and reproduce two video signals even when playing a magnetic tape that has been recorded. This is what we provide.
課題を解決するための手段
上記問題点を解決するために本発明の映像記録再生装置
は一第１のヘッド幅をもちそれぞれ第１のアジマス角と
第２のアジマス角ｅもつ２つの記録ヘッドと、第２のへ
、ド幅をもち第１のアジマスｐ４をもつ２つの再生へラ
ドと一第２ヘッド幅全もち第２のアジマス角をもつ２つ
の再生ヘッドとを有する回転するシリンダーと一フィー
ルド間欠記録制御回路と、第１映像入力信号と第２映像
入力信号を切換える入力映像信号切換え回路とへ前記入
力映像信号切換え回路の出力信号を記録映像信号に変換
する入力映像信号記録回路と、前記入力映像信号記録回
路の出力信号を前記フィールド間欠記録制御回路の制御
信号によって記録ヘッドを切換える記録ヘッド切換え回
路とを有するフィールド間欠記録回路と、記録時の２倍
速以上の速さで送るよう制御する倍速再生制御回路と、
前記倍速再生制御回路によって再生された信号を第１映
像信号か第２映像信号かどちらか選択できるよう指令を
送る再生映像選択指令回路と、前記再生映像選択指令回
路の指令を受けて再生ヘッドの切換えを行う再生ヘッド
切換回路と、前記再生ヘッド切換え回路によって出力さ
れる信号を映像信号に変換する映像再生回路を有する倍
速再生回路という構成を備えたものである。Means for Solving the Problems In order to solve the above problems, the video recording and reproducing apparatus of the present invention includes two recording heads each having a first head width and a first azimuth angle and a second azimuth angle e. , a rotating cylinder having two playback heads having a second width and a first azimuth p4, and two playback heads having a second full head width and a second azimuth angle, and one field. an input video signal recording circuit that converts an output signal of the input video signal switching circuit into a recording video signal to an intermittent recording control circuit and an input video signal switching circuit that switches between a first video input signal and a second video input signal; A field intermittent recording circuit having a recording head switching circuit that switches the recording head in accordance with a control signal of the field intermittent recording control circuit, and controlling the output signal of the input video signal recording circuit to be sent at a speed equal to or higher than twice the recording speed. A double speed playback control circuit,
a reproduction video selection command circuit that sends a command to select either a first video signal or a second video signal from the signal reproduced by the double-speed reproduction control circuit; This apparatus includes a double-speed playback circuit including a playback head switching circuit that performs switching, and a video playback circuit that converts the signal output by the playback head switching circuit into a video signal.
作用
本発明は上記した構成によって、第１のアジマス角を持
ち′ｊｉｇ１のヘッド幅をもつ第１ヘッドによって、第
１の映像入力信号の１フイ一ルド分を記録し、第２のア
ジマス角を持ち第１のヘッド幅をもつ第２ヘッドによっ
て、第２の映像入力信号の１フイ一ルド分をそれぞれ交
互にフィールド間欠記録したテープを１倍速以上のテー
プ速度で送り一第１の映像信号を再生する場合には、第
３ヘッド第４ヘッドによって再生し、第２の映像信号を
再生する場合には第６ヘッド第６ヘッドによって再生す
ることにより−これにより、２つの映像信号を交互にフ
ィールド間欠記録したテープでも、再生ヘッドのヘッド
幅とアジマス角を選択することによりアジマス効果によ
って、別々に２つの映像信号を再生することができるこ
ととなる。According to the above-described configuration, the present invention records one field of the first video input signal using the first head having the first azimuth angle and the head width of 'jig1, and records the second azimuth angle by recording one field of the first video input signal. A second head having a first head width is used to feed a tape on which one field of a second video input signal is alternately recorded intermittently at a tape speed of 1x or more, and then output the first video signal. When reproducing, the third head and the fourth head reproduce the signal, and when reproducing the second video signal, the sixth head reproduces the second video signal.Thus, the two video signals are alternately field-reproduced. Even on a tape recorded intermittently, by selecting the head width and azimuth angle of the reproducing head, it is possible to reproduce two video signals separately using the azimuth effect.
実施例
以下１本発明の映像記録再生装置について、図面を参照
しながら説明する。Embodiments Below, a video recording and reproducing apparatus of the present invention will be described with reference to the drawings.
第１図は本実施例のブロック図であり、第２図は回転シ
リンダーとヘッド構成で、第３図はフィールド間欠記録
した磁気テープを２倍速再生したトキのヘッドトレース
パターンである。、第１図において、１１はフィールド
間欠記録全制御するフィールド間欠記録制御回路、１２
は第１映像入力信号と第２映像入力信号をフィールド間
欠記録のインターバル期間中に切換える入力映像信号切
換え回路、１３は１２で切換えられた入力映像信号を記
録信号に変換する入力映像信号記録回路−１４は１１の
フィールド間欠記録制御回路の指令を受け、記録ヘッド
を切換える記録ヘッド切換え回路、１６はフィールド間
欠記録されたテープの再生映像信号の選択指令する再生
映像選択指令回路、１６は１６の指令を受は磁気テープ
を倍速再生するための制御を行う倍速再生制御回路−１
７は再生ヘッドを切換える再生ヘッド切換回路、１８は
再生信号を映像信号に変換する映像再生回路である。第
２図において、２１は第１のアジマス角をもち第１のヘ
ッド幅をもつヘッド（Ｒヘッド）、２２は第２のアジマ
ス角をもち第２のヘッド幅をもつヘッド（Ｌヘッド）−
２ｓ、２ａＦｉ第１のアジマス角をもち第２のヘッド幅
をもつヘッド（Ｒ’ヘッド）、２５．２６は第２のアジ
マス角をもち第２のヘッド幅をもつヘッド（Ｌ’ヘッド
）、２７は回転シリンダーである。第３図において、３
１は記録時のトラック、３２は２倍速再生時のヘッドト
レースである。FIG. 1 is a block diagram of this embodiment, FIG. 2 is a rotating cylinder and head configuration, and FIG. 3 is a head trace pattern obtained when a magnetic tape with intermittent field recording is reproduced at double speed. , in FIG. 1, 11 is a field intermittent recording control circuit that completely controls field intermittent recording; 12 is a field intermittent recording control circuit;
13 is an input video signal switching circuit that switches the first video input signal and the second video input signal during the interval period of intermittent field recording, and 13 is an input video signal recording circuit that converts the input video signal switched at 12 into a recording signal. Reference numeral 14 designates a recording head switching circuit that receives commands from the field intermittent recording control circuit 11 and switches the recording head; 16 designates a reproduction video selection command circuit that provides a selection command for a reproduction video signal of a tape recorded in field intermittently; 16 designates the commands of 16; The receiver is a double-speed playback control circuit-1 that controls the double-speed playback of the magnetic tape.
7 is a playback head switching circuit for switching the playback head, and 18 is a video playback circuit for converting the playback signal into a video signal. In FIG. 2, 21 is a head with a first azimuth angle and a first head width (R head), and 22 is a head with a second azimuth angle and a second head width (L head).
2s, 2aFi Head with first azimuth angle and second head width (R' head), 25.26 Head with second azimuth angle and second head width (L' head), 27 is a rotating cylinder. In Figure 3, 3
1 is a track during recording, and 32 is a head trace during double speed playback.
以上のように構成された映像記録再生装置について、以
下その動作につｈて説明する。The operation of the video recording and reproducing apparatus configured as described above will be explained below.
まず、第１図の第１の映像信号は第２図における２１の
Ｒヘッドによって１フイ一ルド分だけ記録される。この
後車１の映像信号は１２の映像入力信号切換え回路によ
って切換えられ第２の映像信号に切換わる。そして次の
記録タイミングの時に第２図の２２のＬヘッドによって
第２の映像信号が１フイ一ルド分記録される。以下この
動作を繰り返しフィールド間欠記録したテープが完成す
る。フィールド間欠記録されたテープは、Ｒヘッドでは
常に第１の映像入力信号をＬヘッドでは第２の映像信号
を記録していることとなる。次にフィールド間欠記録さ
れたテープを再生する時にテープの送り速を、第１図１
６の倍速再生制御回路によってフィールド間欠記録時の
送り速の２倍にして再生するにのとき第１の映像信号を
再生する場合には第２図の２３．２４のＲ′ヘッドを用
い、第２の映像信号を再生する場合は第２図２６゜２６
を用いるよう第１図の１６の再生映像選択指令回路に基
づき、１６の再生ヘッド切換え回路が動作する。これに
より第３図の２倍速再生時のヘッドトレース図よりわか
るように一記録時のヘッド幅より広いヘッド幅で同アジ
マス角のヘッドで２倍速再生することによりへ常に第１
の映像信号と第２の映像信号を区別して再生することが
可能となる。First, the first video signal in FIG. 1 is recorded by the R head 21 in FIG. 2 for one field. The video signal of the rear vehicle 1 is switched to a second video signal by a video input signal switching circuit 12. Then, at the next recording timing, the second video signal is recorded for one field by the L head 22 in FIG. Thereafter, this operation is repeated until a tape with intermittent field recording is completed. On a tape with intermittent field recording, the R head always records the first video input signal, and the L head always records the second video input signal. Next, when playing back a tape with intermittent field recording, the tape feed speed is shown in Figure 1.
When the first video signal is to be reproduced at twice the feed speed during intermittent field recording using the double-speed reproduction control circuit No. 6, R' heads No. 23 and 24 in FIG. 26゜26 in Figure 2 when reproducing the video signal of 2.
The 16 playback head switching circuits operate based on the 16 playback video selection command circuits in FIG. As a result, as can be seen from the head trace diagram during double speed playback in Figure 3, by playing back at double speed with a head wider than the head width at one recording and with the same azimuth angle, the
It becomes possible to distinguish and reproduce the video signal and the second video signal.
以上のように本実施例によれば、再生時に第１のアジマ
ス角を持ち第２のヘッド幅をもつヘッド１組と、第２の
アジマス角を持ち第２のヘッド幅をもつヘッド１組とを
回転シリンダーに設けることにより、記録時に１フイー
ルド毎に第１映像信号と第２映像信号を記録したにもか
かわらず、再生時には第１映像信号と第２映像信号を区
別して再生することができる。As described above, according to this embodiment, during reproduction, there is one set of heads having the first azimuth angle and the second head width, and one set of heads having the second azimuth angle and the second head width. By providing this on the rotating cylinder, even though the first video signal and the second video signal are recorded for each field during recording, it is possible to distinguish between the first video signal and the second video signal during playback. .
発明の効果
以上のように本発明は、第１のアジマス角を持ち第２の
ヘッド幅をもつヘッド１組と、第２のアジマス角を持ち
第２のヘッド幅をもつヘッド１組と、第１の映像入力信
号を第１のアジマス角をもち第１のヘッド幅を持つ第１
ヘッドで記録し、第２の映像入力信号を第２のアジマス
角をもち第１のヘッド幅をもつ第２ヘッドで記録するフ
ィールド間欠記録回路と一再生映像信号の選択指令を行
う再生映像選択指令回路と、倍速再生制御回路と一再生
ヘッド切換え回路とを用いることによって、記録時に第
１の映像信号と第２の映像信号を１フイールドずつ間欠
記Ｍした磁気テープを再生した場合においても、第１の
映像信号と第２の映像信号を区別して再生した画像をう
ることができるといったすぐれた映像記録再生装置を得
ることができるものである。Effects of the Invention As described above, the present invention includes a set of heads having a first azimuth angle and a second head width, a set of heads having a second azimuth angle and a second head width, and a set of heads having a second azimuth angle and a second head width. A first video input signal having a first azimuth angle and a first head width.
a field intermittent recording circuit for recording a second video input signal with a second head having a second azimuth angle and a first head width; and a reproduction video selection command for issuing a selection command for one reproduction video signal. By using this circuit, a double-speed playback control circuit, and a playback head switching circuit, even when playing back a magnetic tape in which the first video signal and the second video signal are intermittently recorded one field at a time during recording, the first Accordingly, it is possible to obtain an excellent video recording and reproducing apparatus that can reproduce images by distinguishing between the first video signal and the second video signal.
第１図は本発明の実施例の映像記録再生装置のブロック
図−第２図は同装置の回転シリンダーとヘッドの構成図
、第３図はフィールド間欠記録時のトラックと２倍速再
生時のヘッドトレース図。
第４図は従来の映像記録再生装置の回転シリンダーとヘ
ッドの構成図、第６図はフィールド間欠記録時のタイミ
ングチャート図である。
１１・・・・・・フィールド間欠記録制御回路、１２・
・・・・・入力映像信号切換回路、１３・・・・・・入
力映像信号記録回路、１４・・・・・・記録ヘッド切換
回１１Ｌ１５・・−・・・再生映像選択指令回路、１６
・・・・・・倍速再生制御回路、１７・・・・・・再生
ヘッド切換回路、１８・・・・・・映像再生回路、２１
・・・・・・第１のアジマス角第１ヘッド幅のヘッド、
２２・・・・・・第２のアジマス角第１ヘッド幅のヘッ
ド％２３・川・・第１のアジマス角第２ヘッド幅のヘッ
ド、２４・川・・第１のアジマス用筆２のヘッド幅のヘ
ッド、２６・・・・・・第２のアジマス用筆２のヘッド
幅のヘッド、２６・川・・第２のアジマス用筆２のヘッ
ド幅のヘッド、２７・川・・回転シリンダー、３１・・
・・・・フィールド間欠記録時の収録トラック、３２・
・・・・・２倍速再生時のヘッドトレース。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名２１
−一へラド（Ｒン
２？−−Ａ−ｖｈ”（Ｌ）
２３、２４°−ヘッド（に′）
ｚｓ、 ｚｔｏ−へラド（Ｌ′）
２７− 回東大シソングーFig. 1 is a block diagram of a video recording and reproducing apparatus according to an embodiment of the present invention; Fig. 2 is a block diagram of a rotating cylinder and head of the same apparatus; Fig. 3 is a track during intermittent field recording and a head during double-speed playback. Trace diagram. FIG. 4 is a block diagram of a rotary cylinder and head of a conventional video recording/reproducing apparatus, and FIG. 6 is a timing chart during intermittent field recording. 11...Field intermittent recording control circuit, 12.
...Input video signal switching circuit, 13...Input video signal recording circuit, 14...Recording head switching circuit 11L15...Reproduction video selection command circuit, 16
... Double speed playback control circuit, 17... Playback head switching circuit, 18... Video playback circuit, 21
・・・・・・Head with first azimuth angle and first head width,
22...Second azimuth angle head of first head width %23.. Head of first azimuth angle second head width, 24.. Head of first azimuth brush 2 Width head, 26...Head width of the second azimuth brush 2, 26..Head width of the second azimuth brush 2, 27..Rotating cylinder. 31...
...Track recorded during field intermittent recording, 32.
...Head tracing during double speed playback. Name of agent: Patent attorney Shigetaka Awano and 1 other person21
-Ichiherad (Rn2?--A-vh" (L) 23, 24°-Head (Ni') zs, zto-Herad (L') 27- Kaito University Sisonggu
Claims (1)
ち第１のヘッド幅を持つ第１ヘッドと、前記シリンダー
の中心に対して前記第１ヘッドと対称な位置に設けられ
た第２のアジマス角を持ち前記第１ヘッドと同じヘッド
幅を持つ第２ヘッドと、前記第１ヘッドと同じアジマス
角を持ち第１ヘッドよりヘッド幅の広い第２のヘッド幅
を持つ第３ヘッドと、前記シリンダーの中心に対して前
記第３ヘッドと対称な位置に設けられた第３ヘッドと同
じアジマス角同じヘッド幅を持つ第４ヘッドと、前記第
２ヘッドと同じアジマス角を持ち前記第３ヘッドと同じ
ヘッド幅を持つ第６ヘッドと、前記シリンダーの中心に
対して前記第６ヘッドと同じアジマス角同じヘッド幅を
持つ第６ヘッドとを有する回転シリンダーと、前記回転
シリンダーの第１ヘッドと第２ヘッドを用いてフィール
ド間欠記録するための制御を行うフィールド間欠記録制
御回路と、前記フィールド間欠記録制御回路の制御指令
により、第１ヘッドで第１映像入力信号を第２ヘッドで
第２映像信号を記録できるように第１映像入力信号と第
２映像入力信号とを切換える入力映像信号切換え回路と
、前記入力映像信号切換え回路によって出力される信号
を記録映像信号に変換する入力映像信号記録回路と、前
記入力映像信号記録回路によって出力された信号を前記
フィールド間欠記録制御回路より出力される記録ヘッド
指令と記録タイミングによってヘッドへ送る信号を切換
える記録ヘッド切換回路とを有するフィールド間欠記録
回路と、前記フィールド間欠記録回路によって記録され
た磁気テープを、記録時の２倍速以上の速さで送るよう
制御する倍速再生制御回路と、前記倍速再生制御回路に
よって再生された信号を第１映像信号か第２映像信号か
どちらか選択できるよう指令を送る再生映像選択指令回
路と、前記再生映像選択指令回路の指令を受けて再生ヘ
ッドの切換えを行う再生ヘッド切換回路と、前記再生ヘ
ッド切換え回路によって出力される信号を映像信号に変
換する映像再生回路を有する倍速再生回路とを備えたこ
とを特徴とする映像記録再生装置。a first head having a first azimuth angle and a first head width provided on a rotating cylinder; and a second azimuth angle provided at a position symmetrical to the first head with respect to the center of the cylinder. a second head having the same head width as the first head; a third head having the same azimuth angle as the first head and a second head width wider than the first head; a fourth head having the same azimuth angle and the same head width as the third head, which is provided at a position symmetrical to the third head with respect to the center; and a fourth head having the same azimuth angle as the second head and the same head width as the third head. a rotary cylinder having a sixth head having a width, a sixth head having the same azimuth angle and the same head width as the sixth head with respect to the center of the cylinder, and a first head and a second head of the rotary cylinder. The first head can record the first video input signal and the second head can record the second video signal by using a field intermittent recording control circuit that performs control for intermittent field recording using a field recording control circuit, and a control command of the field intermittent recording control circuit. an input video signal switching circuit that switches between a first video input signal and a second video input signal; an input video signal recording circuit that converts the signal output by the input video signal switching circuit into a recorded video signal; a field intermittent recording circuit having a recording head switching circuit for switching the signal outputted by the video signal recording circuit to the head according to a recording head command output from the field intermittent recording control circuit and a recording timing; and the field intermittent recording. a double-speed playback control circuit that controls the magnetic tape recorded by the circuit to be sent at a speed equal to or higher than twice the recording speed; and a double-speed playback control circuit that controls whether the signal played back by the double-speed playback control circuit is a first video signal or a second video signal. A playback video selection command circuit that sends a command to select either one, a playback head switching circuit that switches the playback head in response to a command from the playback video selection command circuit, and a signal output from the playback head switching circuit that A video recording and reproducing device comprising: a double-speed reproducing circuit having a video reproducing circuit for converting into a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1020037A JPH02200077A (en) | 1989-01-30 | 1989-01-30 | Video recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1020037A JPH02200077A (en) | 1989-01-30 | 1989-01-30 | Video recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02200077A true JPH02200077A (en) | 1990-08-08 |
Family
ID=12015865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1020037A Pending JPH02200077A (en) | 1989-01-30 | 1989-01-30 | Video recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02200077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762390A2 (en) * | 1995-09-07 | 1997-03-12 | Sony Corporation | Recording and/or reproducing information |
-
1989
- 1989-01-30 JP JP1020037A patent/JPH02200077A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762390A2 (en) * | 1995-09-07 | 1997-03-12 | Sony Corporation | Recording and/or reproducing information |
| EP0762390A3 (en) * | 1995-09-07 | 1997-08-20 | Sony Corp | Recording and/or reproducing information |
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