JPS617172U - Reference signal switching circuit - Google Patents
Reference signal switching circuitInfo
- Publication number
- JPS617172U JPS617172U JP9212084U JP9212084U JPS617172U JP S617172 U JPS617172 U JP S617172U JP 9212084 U JP9212084 U JP 9212084U JP 9212084 U JP9212084 U JP 9212084U JP S617172 U JPS617172 U JP S617172U
- Authority
- JP
- Japan
- Prior art keywords
- reference signal
- circuit
- signal
- switching circuit
- reset terminal
- 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.)
- Granted
Links
Landscapes
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案♀実施例の回路ブロック図、第′！：一
一〒二箱，−ヤ、７−ヶー．
信号作成手段、訃・・・・・ゲート回路。Figure 1 is a circuit block diagram of a female embodiment of the present invention. ：11〒2 boxes, -ya, 7-months. Signal creation means, gate circuit.
Claims (1)
準信号とし、再生状態では基準信号源の出力を前記基準
信号とするビデオテープレコーダの基準信号切換回路に
おいて、発振回路とこの発振回路出力を分周するリセッ
ト端子付分周回路を有する基準信号源と、垂直同期信号
を入力とするゲート回路と、記録状態から再生状態への
変化に対応して所定期間前記ゲート回路を開くゲート信
号の作成手段を備え、前記ゲート回路出力を前記リセッ
ト端子に供給して、垂直同期信号で前記リセット端子付
分周回路をリセットすることをＷとする基準信号切換回
路。In the reference signal switching circuit of a video tape recorder, the vertical synchronization signal of the video signal is used as the reference signal of the servo circuit in the recording state, and the output of the reference signal source is used as the reference signal in the playback state. a reference signal source having a frequency dividing circuit with a reset terminal that rotates, a gate circuit that receives a vertical synchronizing signal as input, and a gate signal generating means that opens the gate circuit for a predetermined period in response to a change from a recording state to a reproduction state. A reference signal switching circuit comprising: supplying the gate circuit output to the reset terminal and resetting the frequency divider circuit with a reset terminal using a vertical synchronization signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9212084U JPS617172U (en) | 1984-06-20 | 1984-06-20 | Reference signal switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9212084U JPS617172U (en) | 1984-06-20 | 1984-06-20 | Reference signal switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS617172U true JPS617172U (en) | 1986-01-17 |
| JPH057827Y2 JPH057827Y2 (en) | 1993-02-26 |
Family
ID=30648626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9212084U Granted JPS617172U (en) | 1984-06-20 | 1984-06-20 | Reference signal switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS617172U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5061116A (en) * | 1973-09-28 | 1975-05-26 | ||
| JPS519524A (en) * | 1974-07-12 | 1976-01-26 | Matsushita Electric Ind Co Ltd | GAZOEISHUTSUSOCHI |
| JPS5590057U (en) * | 1978-12-12 | 1980-06-21 | ||
| JPS55114082A (en) * | 1979-02-23 | 1980-09-03 | Hitachi Ltd | Magnetic recording and reproducing device |
| JPS59191165A (en) * | 1983-04-15 | 1984-10-30 | Hitachi Ltd | Servo device of magnetic recording and reproducing device |
-
1984
- 1984-06-20 JP JP9212084U patent/JPS617172U/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5061116A (en) * | 1973-09-28 | 1975-05-26 | ||
| JPS519524A (en) * | 1974-07-12 | 1976-01-26 | Matsushita Electric Ind Co Ltd | GAZOEISHUTSUSOCHI |
| JPS5590057U (en) * | 1978-12-12 | 1980-06-21 | ||
| JPS55114082A (en) * | 1979-02-23 | 1980-09-03 | Hitachi Ltd | Magnetic recording and reproducing device |
| JPS59191165A (en) * | 1983-04-15 | 1984-10-30 | Hitachi Ltd | Servo device of magnetic recording and reproducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057827Y2 (en) | 1993-02-26 |
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