JPS6035722B2 - Image recording method - Google Patents
Image recording methodInfo
- Publication number
- JPS6035722B2 JPS6035722B2 JP53144144A JP14414478A JPS6035722B2 JP S6035722 B2 JPS6035722 B2 JP S6035722B2 JP 53144144 A JP53144144 A JP 53144144A JP 14414478 A JP14414478 A JP 14414478A JP S6035722 B2 JPS6035722 B2 JP S6035722B2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- recording
- image
- recording method
- channels
- 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.)
- Expired
Links
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Description
【発明の詳細な説明】
本発明は、ディジタル画像の記録方式に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital image recording method.
従来、アナログ磁気ディスク等に静止画像を記録する場
合は、１つの信号に１チャネルを割り当てて記録してい
た。Conventionally, when recording a still image on an analog magnetic disk or the like, one channel was assigned to one signal.
ところが、この方式によると、記録画像の一部を変更し
たい場合、画面の変更部分の境界に継目雑音が発生する
おそれがあるため、記録画像全体を更新しなければなら
ず、不経済な面があった。本発明は上記した従来技術の
欠点に鑑み、画像記録変更時における経済化を図ること
にある。However, with this method, if you want to change a part of the recorded image, there is a risk that seam noise will occur at the boundary of the changed part of the screen, so the entire recorded image must be updated, which is uneconomical. there were. SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to achieve economy when changing image recording.
そこで本発明は、記録開始、終了時点を異ならせた同一
画像信号を２チャネルの記録媒体に記録し、再生時には
２チャネルの画像信号を交互に切替え出力するようにし
て継目雑音の発生をなくしたものである。以下、添付図
に従って本発明を詳述する。Therefore, the present invention eliminates the occurrence of seam noise by recording the same image signal with different recording start and end times on two channels of recording media, and alternately switching and outputting the two channels of image signals during playback. It is something. The present invention will be described in detail below with reference to the accompanying drawings.
第ｌ図および第２図は本発明による画像記録方式の原理
を説明するための図であり、図中、１および２は記録の
開始、終了時点の異なったＡ，Ｂ２チャネルの出力タイ
ミングを示してある。すなわち、Ａチャネル１からはＡ
チャネル選択期間３の間だけ読み出し出力を選択し、Ｂ
チャネル２からはＢチャネル選択期間４の間だけ読み出
し出力を選択することを示している。いま、第２図に示
すように、画面の一部を更新し、追加記録したい情報５
がある場合は、Ａチャネル１にはＡチャネル記録期間６
の間だけ、また、Ｂチャネル２にはＢチャネル記録期間
７の間だけその追加記録する情報５を共通に記録する。Figures 1 and 2 are diagrams for explaining the principle of the image recording method according to the present invention. In the figures, 1 and 2 indicate the output timings of the A and B channels at different recording start and end points. There is. In other words, from A channel 1, A
Select read output only during channel selection period 3, and
This indicates that the read output from channel 2 is selected only during B channel selection period 4. Now, as shown in Figure 2, update part of the screen and add information 5 that you want to record.
If there is, A channel 1 has an A channel recording period of 6.
Also, the additionally recorded information 5 is commonly recorded in the B channel 2 only during the B channel recording period 7.
このとき、記録の開始時点と終了時点に発する継目雑音
８は、Ａ，Ｂチャネルとも当該チャネル選択期間になら
ないように選んであるので、出力画像信号には継目雑音
８は出力されない。また、各チャネル選択時間は、画像
情報の無い水平婦線消去期間に合わせることが考えられ
るが、例えば文字画像の場合では文字間隔に合わせれば
更に無駄が減る。どちらの場合でも画面上での不連続現
象は生じない。又、水平帰線消去期間に切替えることも
可能である。第３図は、この画像記録方式を実施する具
体的な回路図であり、図中、９は入力画像信号の入力端
子、１川ま出力端子で、Ａチャネル書込／論出し切替ス
イッチ１１を介してＡチャネル記録媒体１４が接続され
、Ｂチャネル書込／読出し切替スイッチ１２を介してＢ
チャネル記録媒体１５が接続してある。At this time, the seam noise 8 generated at the start and end points of recording is selected so that neither the A nor the B channel falls within the corresponding channel selection period, so the seam noise 8 is not output to the output image signal. Further, it is conceivable that the selection time of each channel is matched with the horizontal feminine line erasure period in which there is no image information, but in the case of a character image, for example, if it is matched with the character interval, waste will be further reduced. In either case, no discontinuity phenomenon occurs on the screen. It is also possible to switch to the horizontal blanking period. FIG. 3 is a specific circuit diagram for implementing this image recording method. In the figure, 9 is an input terminal for the input image signal, 1 is an output terminal, and the A channel write/output changeover switch 11 is used. A channel recording medium 14 is connected through the B channel write/read changeover switch 12.
A channel recording medium 15 is connected.
また、１３はＡチャネル、Ｂチャネルのどちらか一方を
選択出力する選択スイッチである。
−第３図の回路において、入力端子９より入力
された追加記録する画像信号は、Ａチャネル書込／議出
し切替スイッチ１１およびＢチャネル書込／読出し切替
スイッチ１２を経由して、それぞれＡチャネル記録媒体
１４およびＢチャネル記録媒体１５に記録される。Further, 13 is a selection switch for selectively outputting either the A channel or the B channel.
- In the circuit shown in FIG. 3, the image signal to be additionally recorded inputted from the input terminal 9 is transferred to the A channel via the A channel write/read changeover switch 11 and the B channel write/read changeover switch 12, respectively. It is recorded on the recording medium 14 and the B channel recording medium 15.
そしてそれぞれの記録媒体１４，１５からその追加記録
された画像信号を謙出す場合は、Ａチャネル書込／読出
し切替スイッチ１１およびＢチャネル書込／読出し切替
スイッチ１２を出力端子側に切替え、その切替スイッチ
１１，１２を経由し、さらにチャネル選択スイッチ１３
の切替制御によりＡチャネルまたはＢチャネルのどちら
かが選択され、前述の如く、継目雑音がなく、画面上で
不連続現象を生ずることのない希望どうりの一部変更し
た新しい画像信号が出力端子１０より得られる。上述の
実施例からも明らかなように本発明によれば、記録開始
、終了時点を異ならせた１つの画像信号を２チャネルの
記録媒体に記録し、再生時にその２チャネルの記録媒体
を交互に切替え選択して記録画像信号を出力するように
したものである。When outputting the additionally recorded image signals from the respective recording media 14 and 15, switch the A channel write/read selector switch 11 and the B channel write/read selector switch 12 to the output terminal side. via the switches 11 and 12, and then the channel selection switch 13.
Either the A channel or the B channel is selected by the switching control of 10. As is clear from the embodiments described above, according to the present invention, one image signal with different recording start and end times is recorded on two channels of recording media, and the two channels of recording media are alternately used during playback. The recording image signal is output by switching and selecting.
したがって、記録画面の一部を変更する際の継目雑音は
解消され、しかも従釆のように画面全体を更新する必要
がないので経済的効果も図れるものである。Therefore, seam noise when changing a part of the recording screen is eliminated, and there is no need to update the entire screen as in the case of subordinates, so economical effects can also be achieved.
第１図および第２図は本発明による画像記録方式の原理
説明をする図、第３図は本発明の具体的実施の一例を示
すブロック図である。
１，２・・…・チャネル、３，４・・・・・・チャネル
選択期間、５…・・・追加記録情報、６，７・・・・・
・記録期間、８・・・・・・継目雑音、９・・・・・・
入力端子、１０・・・・・・出力端子、１１，１２・・
・・・・書込／議出し切替スイッチ、１３・・・・・・
チャネル選択スイッチ、１４，１５・…・・記録媒体。
オノ図オ２図
夕３図1 and 2 are diagrams for explaining the principle of an image recording system according to the present invention, and FIG. 3 is a block diagram showing an example of a specific implementation of the present invention. 1, 2... Channel, 3, 4... Channel selection period, 5... Additional recording information, 6, 7...
・Recording period, 8... Seam noise, 9...
Input terminal, 10... Output terminal, 11, 12...
...Writing/deliberation changeover switch, 13...
Channel selection switch, 14, 15...recording medium. Ono diagram O 2 diagram Yu 3 diagram
Claims (1)
号を２チヤネルの記録媒体に記録し、再生時に該２チヤ
ネルの記録媒体の画像信号を交互に切替え出力すること
を特徴とする画像記録方式。1. An image recording method characterized by recording the same image signal with different start and end points on two channels of recording media, and alternately switching and outputting the image signals of the two channels of recording media during playback. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53144144A JPS6035722B2 (en) | 1978-11-24 | 1978-11-24 | Image recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53144144A JPS6035722B2 (en) | 1978-11-24 | 1978-11-24 | Image recording method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5570908A JPS5570908A (en) | 1980-05-28 |
| JPS6035722B2 true JPS6035722B2 (en) | 1985-08-16 |
Family
ID=15355237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53144144A Expired JPS6035722B2 (en) | 1978-11-24 | 1978-11-24 | Image recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035722B2 (en) |
-
1978
- 1978-11-24 JP JP53144144A patent/JPS6035722B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5570908A (en) | 1980-05-28 |
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