JPH0270584U - - Google Patents
Info
- Publication number
- JPH0270584U JPH0270584U JP14986488U JP14986488U JPH0270584U JP H0270584 U JPH0270584 U JP H0270584U JP 14986488 U JP14986488 U JP 14986488U JP 14986488 U JP14986488 U JP 14986488U JP H0270584 U JPH0270584 U JP H0270584U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- pulse
- head output
- circuit
- switching circuit
- 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
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Signal Processing For Recording (AREA)
Description
図は可れも本考案の一実施例を示し、第１図は
回路ブロツク図、第２図は水平同期パルスが存在
する場合の信号波形説明図、第３図は水平同期パ
ルスが欠落する場合の信号波形説明をそれぞれ示
す。
Ａ……切換パルス補正回路、１１……パルス発
生回路。
The figures show an embodiment of the present invention, with Fig. 1 being a circuit block diagram, Fig. 2 being an explanatory diagram of signal waveforms when a horizontal synchronizing pulse is present, and Fig. 3 being showing a case where a horizontal synchronizing pulse is missing. A description of the signal waveforms is shown below. A...Switching pulse correction circuit, 11...Pulse generation circuit.
Claims (1)
出力切換パルスを形成する切換パルス発生手段と
、交互に発生する回転ヘツド出力を信号入力とし
前記ヘツド出力切換パルスを制御入力としてスイ
ツチングを為すスイツチング回路とを配するビデ
オテープレコーダに於て、 再生同期信号に同期する水平同期パルスを発す
るパルス発生回路と、 前記切換パルス発生手段と前記スイツチング回
路との間に配され、前記ヘツド出力切換パルスの
立下り及び立上り後の前記水平同期パルスに同期
してパルスに同期して反転する補正ヘツド出力切
換パルスを前記スイツチング回路の制御入力とし
て供給する切換パルス補正回路とを、 それぞれ配して成るヘツド出力切換回路。[Claims for Utility Model Registration] Switching pulse generating means for forming a head output switching pulse that is reversed every time the rotating cylinder rotates half a rotation, and using the rotating head output that is generated alternately as a signal input and the head output switching pulse as a control input. A video tape recorder is provided with a switching circuit that performs switching as a switching circuit, and a pulse generating circuit that generates a horizontal synchronizing pulse in synchronization with a reproduction synchronizing signal; and a switching circuit that is disposed between the switching pulse generating means and the switching circuit, a switching pulse correction circuit that supplies, as a control input to the switching circuit, a correction head output switching pulse that is inverted in synchronization with the horizontal synchronizing pulse after the falling and rising edges of the head output switching pulse; A head output switching circuit consisting of:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14986488U JPH0270584U (en) | 1988-11-16 | 1988-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14986488U JPH0270584U (en) | 1988-11-16 | 1988-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270584U true JPH0270584U (en) | 1990-05-29 |
Family
ID=31422485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14986488U Pending JPH0270584U (en) | 1988-11-16 | 1988-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270584U (en) |
-
1988
- 1988-11-16 JP JP14986488U patent/JPH0270584U/ja active Pending
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