JPS62121886U - - Google Patents
Info
- Publication number
- JPS62121886U JPS62121886U JP850786U JP850786U JPS62121886U JP S62121886 U JPS62121886 U JP S62121886U JP 850786 U JP850786 U JP 850786U JP 850786 U JP850786 U JP 850786U JP S62121886 U JPS62121886 U JP S62121886U
- Authority
- JP
- Japan
- Prior art keywords
- video
- magnetic
- delay
- tape recorder
- 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
- 230000003111 delayed effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Television Signal Processing For Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案一実施例のブロツク構成図。第
２図は磁気ヘツドと回転シリンダとの説明図。第
３図は磁気テープ上のトラツク説明図。第４図は
従来例のブロツク構成図。
１，１０，４６……入力ビデオ信号、２，３２
，４７……記録輝度信号処理回路、３，１１，４
８……記録クロマ信号処理回路、４，１２，２２
，３０，６５……混合器、５，１３，４９……記
録アンプ、６，７，１４，１５，５０，５１，５
２，５３……磁気ヘツド、８，５５……磁気テー
プ、９……垂直同期信号発生器、１６，１７，２
４，２５，５６，５７，５８，５９……再生プリ
アンプ、１８，２６……ヘツドスイツチパルス発
生器、１９，２７，６０，６１……ヘツドスイツ
チ回路、２０，２８，６３……再生輝度信号処理
回路、２１，２９，６４……再生クロマ信号処理
回路、２３，３１……再生ビデオ信号、３３……
ビデオメモリ、３８……回転シリンダ、４０……
磁気ヘツド６によるトラツク、４１……磁気ヘツ
ド７によるトラツク、４２……磁気ヘツド６，７
によるガードバンド、４３……磁気ヘツド１４に
よるトラツク、４４……磁気ヘツド１５によるト
ラツク、４５……コントロール信号、５４……ヘ
ツド選択スイツチ、６２……スイツチ回路。
FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 2 is an explanatory diagram of a magnetic head and a rotating cylinder. FIG. 3 is an explanatory diagram of tracks on a magnetic tape. FIG. 4 is a block diagram of a conventional example. 1, 10, 46...Input video signal, 2, 32
, 47... recording luminance signal processing circuit, 3, 11, 4
8...recording chroma signal processing circuit, 4, 12, 22
, 30, 65... mixer, 5, 13, 49... recording amplifier, 6, 7, 14, 15, 50, 51, 5
2,53...Magnetic head, 8,55...Magnetic tape, 9...Vertical synchronization signal generator, 16,17,2
4, 25, 56, 57, 58, 59... Reproduction preamplifier, 18, 26... Head switch pulse generator, 19, 27, 60, 61... Head switch circuit, 20, 28, 63... Reproduction brightness signal processing Circuit, 21, 29, 64...Reproduction chroma signal processing circuit, 23, 31...Reproduction video signal, 33...
Video memory, 38... Rotating cylinder, 40...
Track by magnetic head 6, 41... Track by magnetic head 7, 42... Magnetic heads 6, 7
43...Track by magnetic head 14, 44...Track by magnetic head 15, 45...Control signal, 54...Head selection switch, 62...Switch circuit.
Claims (1)
中心線が９０°となるように回転シリンダに取付
けられた二対の磁気ヘツドと、 上記回転シリンダ上に巻きつけられた磁気テー
プ上記の映像信号をこの磁気ヘツドにより読み取
り、これを再生する再生手段と、 上記磁気ヘツドにより上記磁気テープに映像信
号を記録する記録手段と を備えたビデオテープレコーダにおいて、 上記二対の磁気ヘツドに対応してそれぞれ独立
の再生手段および記録手段を設け、 この二対の磁気ヘツドのそれぞれの記録手段の
入力のうちの一方を他方に対して最大垂直帰線期
間まで遅延させる遅延手段と、 上記それぞれの記録手段により記録される信号
が磁気テープ上で重ならないように、この遅延手
段の遅延量を制御する手段と を備えたことを特徴とするビデオテープレコーダ
。 (2) 遅延手段は、一方のビデオ信号の通路に設
けられたビデオメモリを含み、 遅延量を制御する手段に、他方のビデオ信号に
同期し、上記ビデオメモリの読出しタイミングを
与える垂直同期信号発生器を含む 実用新案登録請求の範囲第(1)項に記載のビデ
オテープレコーダ。[Claims for Utility Model Registration] (1) Two pairs of magnetic heads that face each other and are attached to a rotating cylinder so that the center line of each pair is 90°; A video tape recorder comprising a reproducing means for reading and reproducing the video signal from a wound magnetic tape using the magnetic head, and a recording means for recording the video signal on the magnetic tape using the magnetic head, the video tape recorder comprising: Independent reproducing means and recording means are provided corresponding to the two pairs of magnetic heads, and one of the inputs of the respective recording means of the two pairs of magnetic heads is delayed with respect to the other by the maximum vertical retrace period. A video tape recorder comprising: a delay means; and means for controlling the amount of delay of the delay means so that the signals recorded by the respective recording means do not overlap on the magnetic tape. (2) The delay means includes a video memory provided in the path of one video signal, and the means for controlling the amount of delay is synchronized with the other video signal and generates a vertical synchronization signal that provides the read timing of the video memory. A video tape recorder according to claim (1) of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP850786U JPS62121886U (en) | 1986-01-24 | 1986-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP850786U JPS62121886U (en) | 1986-01-24 | 1986-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62121886U true JPS62121886U (en) | 1987-08-03 |
Family
ID=30792946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP850786U Pending JPS62121886U (en) | 1986-01-24 | 1986-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62121886U (en) |
-
1986
- 1986-01-24 JP JP850786U patent/JPS62121886U/ja active Pending
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