JPS61191678U - - Google Patents
Info
- Publication number
- JPS61191678U JPS61191678U JP7675185U JP7675185U JPS61191678U JP S61191678 U JPS61191678 U JP S61191678U JP 7675185 U JP7675185 U JP 7675185U JP 7675185 U JP7675185 U JP 7675185U JP S61191678 U JPS61191678 U JP S61191678U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- magnetic recording
- generation circuit
- dropout
- still
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は、本考案の磁気記録再生回路のスチル
ノイズ送り回路の一実施例を示すブロツク図、第
２図は、同上、各部の波形図、第３図は、ヘリカ
ルスキヤニング方式のビデオテープレコーダにお
ける静止画再生時のトラツキングを示す説明図、
第４図は、従来のスチルノイズ送り回路の一例を
示すブロツク図、第５図ａ，ｂ，ｃは、夫々、同
上の各部の波形図である。
Ｎ…スチルノイズ送り回路、Ｄ…ドロツプアウ
トパルス作成回路、５…三角波発生回路、６…比
較回路、７…モノマルチ回路、ｅ…ドロツプアウ
トパルス。
Fig. 1 is a block diagram showing an embodiment of the still noise sending circuit of the magnetic recording/reproducing circuit of the present invention, Fig. 2 is a waveform diagram of each part of the same as above, and Fig. 3 is a helical scanning type video tape. An explanatory diagram showing tracking during still image playback in a recorder,
FIG. 4 is a block diagram showing an example of a conventional still noise sending circuit, and FIGS. 5a, b, and c are waveform diagrams of each part of the same. N... Still noise sending circuit, D... Dropout pulse creation circuit, 5... Triangular wave generation circuit, 6... Comparison circuit, 7... Mono multi circuit, e... Dropout pulse.
Claims (1)
イズを画面上から追い出す為に用いられるドロツ
プアウト検出によるスチルノイズ送り回路におい
て、テープを最適トラツキング位置に停止させる
為のタイミング信号を作成するドロツプアウトパ
ルス作成回路の中に、三角波発生回路と、比較回
路と、モノマルチ回路とを設けたことを特徴とす
る磁気記録再生装置。 A dropout pulse that creates a timing signal to stop the tape at the optimal tracking position in a still noise sending circuit using dropout detection, which is used to remove the noise generated when playing still images in magnetic recording and reproducing devices from the screen. A magnetic recording/reproducing device characterized in that a triangular wave generation circuit, a comparison circuit, and a monomulti circuit are provided in a generation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7675185U JPS61191678U (en) | 1985-05-22 | 1985-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7675185U JPS61191678U (en) | 1985-05-22 | 1985-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61191678U true JPS61191678U (en) | 1986-11-28 |
Family
ID=30619175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7675185U Pending JPS61191678U (en) | 1985-05-22 | 1985-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61191678U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553271A (en) * | 1978-06-22 | 1980-01-11 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic picture recorder/reproducer |
| JPS5731274A (en) * | 1980-07-31 | 1982-02-19 | Matsushita Electric Ind Co Ltd | Detecting circuit of noise band phase |
| JPS57210783A (en) * | 1981-06-19 | 1982-12-24 | Victor Co Of Japan Ltd | Magnetic reproducing device |
| JPS609965U (en) * | 1983-06-27 | 1985-01-23 | トリニテイ工業株式会社 | Pretreatment device |
-
1985
- 1985-05-22 JP JP7675185U patent/JPS61191678U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553271A (en) * | 1978-06-22 | 1980-01-11 | Matsushita Electric Ind Co Ltd | Rotary head type magnetic picture recorder/reproducer |
| JPS5731274A (en) * | 1980-07-31 | 1982-02-19 | Matsushita Electric Ind Co Ltd | Detecting circuit of noise band phase |
| JPS57210783A (en) * | 1981-06-19 | 1982-12-24 | Victor Co Of Japan Ltd | Magnetic reproducing device |
| JPS609965U (en) * | 1983-06-27 | 1985-01-23 | トリニテイ工業株式会社 | Pretreatment device |
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