JPS636534U - - Google Patents
Info
- Publication number
- JPS636534U JPS636534U JP9814986U JP9814986U JPS636534U JP S636534 U JPS636534 U JP S636534U JP 9814986 U JP9814986 U JP 9814986U JP 9814986 U JP9814986 U JP 9814986U JP S636534 U JPS636534 U JP S636534U
- Authority
- JP
- Japan
- Prior art keywords
- erasing
- signal
- erasing head
- low frequency
- head
- 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
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
第１図は本考案の磁気記録再生装置の概略ブロ
ツク図、第２図は第１図に示す磁気記録再生装置
のタイミングチヤート、第３図ａ〜ｃはテープパ
ターン上での記録の過程を説明する図、第４図は
ビデオヘツドの電磁変換特性（記録再生特性）を
示す曲線図、第５図は例えばビデオヘツドと消去
ヘツドとの位相差を９０°にしたときの回転ドラ
ムのヘツドの配置を示す平面図である。
１，２…ビデオヘツド、３…消去ヘツド、４…
磁気テープ、５，６，７…スイツチ、８，９，１
０…記録増幅アンプ、１１，１２…合成器、１３
…ＦＭ変調器、１４…消去発振回路、１５…頭出
し信号発生回路。
Fig. 1 is a schematic block diagram of the magnetic recording/reproducing apparatus of the present invention, Fig. 2 is a timing chart of the magnetic recording/reproducing apparatus shown in Fig. 1, and Figs. 3 a to c explain the process of recording on a tape pattern. Figure 4 is a curve diagram showing the electromagnetic conversion characteristics (recording/reproduction characteristics) of the video head, and Figure 5 is the head arrangement of the rotating drum when, for example, the phase difference between the video head and the erasing head is 90°. FIG. 1, 2...Video head, 3...Erasing head, 4...
Magnetic tape, 5, 6, 7...Switch, 8, 9, 1
0...Recording amplifier, 11, 12...Synthesizer, 13
...FM modulator, 14...Erasing oscillation circuit, 15...Cueing signal generation circuit.
Claims (1)
れるとともに、これらビデオヘツドと位相差を持
たせて消去ヘツドが設けられた構造のヘリカルス
キヤン方式の磁気記録再生装置において、前記消
去ヘツドの消去発振に低周波信号を重畳するとと
もに、該消去ヘツドによる消去時に前記低周波信
号を磁気テープの記録トラツクに記録して頭出し
信号とすることを特徴とする磁気記録再生装置。 In a helical scan type magnetic recording/reproducing device having a structure in which a rotating drum is provided with one or more pairs of video heads and an erasing head is provided with a phase difference from the video heads, a low frequency is used for the erasing oscillation of the erasing head. A magnetic recording and reproducing apparatus characterized in that a signal is superimposed and the low frequency signal is recorded on a recording track of a magnetic tape as a cue signal when erasing by the erasing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9814986U JPS636534U (en) | 1986-06-26 | 1986-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9814986U JPS636534U (en) | 1986-06-26 | 1986-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS636534U true JPS636534U (en) | 1988-01-16 |
Family
ID=30965820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9814986U Pending JPS636534U (en) | 1986-06-26 | 1986-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636534U (en) |
-
1986
- 1986-06-26 JP JP9814986U patent/JPS636534U/ja active Pending
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