JPS6365377U - - Google Patents
Info
- Publication number
- JPS6365377U JPS6365377U JP15972586U JP15972586U JPS6365377U JP S6365377 U JPS6365377 U JP S6365377U JP 15972586 U JP15972586 U JP 15972586U JP 15972586 U JP15972586 U JP 15972586U JP S6365377 U JPS6365377 U JP S6365377U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- preamplifier
- amplifies
- head
- preamplifiers
- 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
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の一実施例を示す回路図、及び
第２図は従来の再生回路を示す回路図、及び第３
図は第１図の第３プリアンプの具体回路例を示す
回路図である。
１１…第１プリアンプ、１２…第２プリアンプ
、１３…スイツチ、１４…第３プリアンプ。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a conventional reproducing circuit, and FIG.
FIG. 1 is a circuit diagram showing a specific circuit example of the third preamplifier shown in FIG. 11...First preamplifier, 12...Second preamplifier, 13...Switch, 14...Third preamplifier.
Claims (1)
れている２つのヘツドを備えるビデオテープレコ
ーダにおいて、一方のヘツドからの再生映像信号
を増幅する第１プリアンプと、他方のヘツドから
の再生映像信号を増幅する第２プリアンプと、前
記２つのヘツドの回転に同期した基準信号に応じ
て前記第１及び第２プリアンプの出力信号を選択
するスイツチと、該スイツチの出力信号を増幅す
るとともにその直流オフセツト電圧を除去する第
３プリアンプとからなる再生用の増幅回路を設け
たことを特徴とするビデオテープレコーダ。 In a video tape recorder equipped with two heads mounted on a cylinder at 180 degrees to each other, a first preamplifier amplifies the reproduced video signal from one head, and a second preamplifier amplifies the reproduced video signal from the other head. 2 preamplifiers, a switch that selects the output signals of the first and second preamplifiers according to a reference signal synchronized with the rotation of the two heads, and a switch that amplifies the output signal of the switch and removes its DC offset voltage. A video tape recorder characterized in that it is provided with an amplification circuit for playback consisting of a third preamplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15972586U JPS6365377U (en) | 1986-10-17 | 1986-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15972586U JPS6365377U (en) | 1986-10-17 | 1986-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6365377U true JPS6365377U (en) | 1988-04-30 |
Family
ID=31084423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15972586U Pending JPS6365377U (en) | 1986-10-17 | 1986-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6365377U (en) |
-
1986
- 1986-10-17 JP JP15972586U patent/JPS6365377U/ja active Pending