JPS62106302U - - Google Patents
Info
- Publication number
- JPS62106302U JPS62106302U JP19420785U JP19420785U JPS62106302U JP S62106302 U JPS62106302 U JP S62106302U JP 19420785 U JP19420785 U JP 19420785U JP 19420785 U JP19420785 U JP 19420785U JP S62106302 U JPS62106302 U JP S62106302U
- Authority
- JP
- Japan
- Prior art keywords
- track
- magnetic head
- circuit
- erasing
- recording
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案に使用される磁気デイスクパツ
クを説明する図、第２図は本考案の１実施例にお
ける電子スチル画記録装置の回路部分の構成を示
すブロツク図、第３図は本考案で使用される消去
用電流の波形波を示す図、第４図は消去原理説明
図、第５図は第３図の消去用電流による消去信号
発生回路の１具体例を示す構成図、第６図は第５
図の動作説明図、第７図は本装置の動作プロセス
を説明するフローチヤートである。
１…信号処理回路、２…録画再生回路、３…切
替スイツチ、４…磁気ヘツド、４ａ…コイル、５
…デイスプレイ装置、６…消去信号発生回路、１
２…映像信号記録回路、２０…漸減直流電圧発生
回路、３０…電圧／電流発生回路、４０…極性切
換回路、５０…タイミング・パルス発生回路、１
００…磁気デイスクパツク、１０２…磁気デイス
ク。
FIG. 1 is a diagram illustrating a magnetic disk pack used in the present invention, FIG. 2 is a block diagram showing the configuration of a circuit portion of an electronic still image recording device in an embodiment of the present invention, and FIG. FIG. 4 is a diagram illustrating the erasing principle, FIG. 5 is a configuration diagram showing a specific example of the erasing signal generation circuit using the erasing current shown in FIG. 3, and FIG. The figure is number 5
FIG. 7 is a flowchart illustrating the operation process of this device. DESCRIPTION OF SYMBOLS 1... Signal processing circuit, 2... Recording/playback circuit, 3... Selector switch, 4... Magnetic head, 4a... Coil, 5
...Display device, 6...Erasing signal generation circuit, 1
2... Video signal recording circuit, 20... Gradually decreasing DC voltage generation circuit, 30... Voltage/current generation circuit, 40... Polarity switching circuit, 50... Timing pulse generation circuit, 1
00...Magnetic disk pack, 102...Magnetic disk.
Claims (1)
を磁気デイスクに記録する装置において、１トラ
ツク消去信号発生回路と、磁気ヘツドを映像信号
記録回路と消去信号発生回路とに切替える切替ス
イツチと、記録後直ちに次トラツクへ磁気ヘツド
を送り該切替えスイツチを消去信号発生回路に接
続する制御回路とを備え、該制御回路の磁気ヘツ
ド送り完了信号で消去信号発生回路を磁気ヘツド
に一定時間接続することにより該次トラツクを消
去することを特徴とする電子スチル画記録装置。 (2) 極性が１トラツク走査期間と同じかそれよ
りも長い期間毎に変化し、かつ振幅がトラツク上
の長手方向の任意の点が前記極性変化毎に漸減す
る磁界を受けるように変化する消去用電流を流し
た磁気ヘツドで同心円状トラツクを多数回走査す
ることを特徴とする実用新案登録請求の範囲第１
項記載の電子スチル画記録装置。[Claims for Utility Model Registration] (1) In a device for recording one frame or one field of video signals on a magnetic disk, a one-track erasing signal generating circuit and a magnetic head are combined into a video signal recording circuit and an erasing signal generating circuit. A control circuit that sends the magnetic head to the next track immediately after recording and connects the switch to an erase signal generation circuit, and a magnetic head feed completion signal from the control circuit causes the erase signal generation circuit to switch to the magnetic head. An electronic still image recording device characterized in that the next track is erased by being connected for a certain period of time. (2) Erasing in which the polarity changes every period equal to or longer than one track scanning period, and the amplitude changes so that any point in the longitudinal direction on the track receives a magnetic field that gradually decreases each time the polarity changes. Claim 1 of the utility model registration, which is characterized in that a concentric track is scanned multiple times with a magnetic head through which a current is applied.
The electronic still image recording device described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19420785U JPS62106302U (en) | 1985-12-19 | 1985-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19420785U JPS62106302U (en) | 1985-12-19 | 1985-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62106302U true JPS62106302U (en) | 1987-07-07 |
Family
ID=31150963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19420785U Pending JPS62106302U (en) | 1985-12-19 | 1985-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62106302U (en) |
-
1985
- 1985-12-19 JP JP19420785U patent/JPS62106302U/ja active Pending
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