JPS6164605U - - Google Patents
Info
- Publication number
- JPS6164605U JPS6164605U JP15036584U JP15036584U JPS6164605U JP S6164605 U JPS6164605 U JP S6164605U JP 15036584 U JP15036584 U JP 15036584U JP 15036584 U JP15036584 U JP 15036584U JP S6164605 U JPS6164605 U JP S6164605U
- Authority
- JP
- Japan
- Prior art keywords
- section
- pulse
- signal
- erasure
- erasing
- 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 1
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は第１図の動作説明に供するタイムチヤートで
ある。
１…磁気デイスク、２…デイスクモータ、３…
パルス信号発生器、４…パルスカウンタ、５…消
去区間設定部、６…消去区間比較器、７…消去信
号発生器、Ｔ，ｔ…周期。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a time chart for explaining the operation of FIG. 1. 1...Magnetic disk, 2...Disk motor, 3...
Pulse signal generator, 4... Pulse counter, 5... Erasing section setting section, 6... Erasing section comparator, 7... Erasing signal generator, T, t... Period.
Claims (1)
・再生する磁気記録再生装置における消去信号制
御装置であつて、ＰＧパルスに基づいて、周期が
前記磁気デイスクの１トラツクの内の予め定めた
区間に対応するパルス信号を発生するパルス信号
発生器と、前記パルス信号発生器からのパルス信
号を計数して前記予め定めた各区間にそれぞれ対
応するカウント信号をパラレルに出力するパルス
カウンタと、前記１トラツクの内の所望の消去区
間を設定するための消去区間設定部と、前記パル
スカウンタからのカウント信号および前記消去区
間設定部からの出力を比較して前記所望の消去区
間に対応する比較信号を出力する消去区間比較器
と、前記消去区間比較器からの比較信号に応答し
て消去信号を出力する消去信号発生器とを含むこ
とを特徴とする磁気記録再生装置における消去信
号制御装置。 An erasure signal control device in a magnetic recording and reproducing device for recording and reproducing video signals and information signals on a magnetic disk, wherein the period corresponds to a predetermined section within one track of the magnetic disk based on a PG pulse. a pulse signal generator that generates a pulse signal; a pulse counter that counts the pulse signals from the pulse signal generator and outputs count signals corresponding to each of the predetermined sections in parallel; an erasure section setting section for setting a desired erasure section; and an erasure section that compares a count signal from the pulse counter and an output from the erasure section setting section and outputs a comparison signal corresponding to the desired erasure section. An erasing signal control device for a magnetic recording/reproducing apparatus, comprising: a section comparator; and an erasing signal generator that outputs an erasing signal in response to a comparison signal from the erasing section comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15036584U JPS6164605U (en) | 1984-10-04 | 1984-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15036584U JPS6164605U (en) | 1984-10-04 | 1984-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6164605U true JPS6164605U (en) | 1986-05-02 |
Family
ID=30708511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15036584U Pending JPS6164605U (en) | 1984-10-04 | 1984-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6164605U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952404A (en) * | 1982-09-17 | 1984-03-27 | Canon Inc | Recording or reproducing device |
-
1984
- 1984-10-04 JP JP15036584U patent/JPS6164605U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952404A (en) * | 1982-09-17 | 1984-03-27 | Canon Inc | Recording or reproducing device |
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