JPS6313402U - - Google Patents
Info
- Publication number
- JPS6313402U JPS6313402U JP10638886U JP10638886U JPS6313402U JP S6313402 U JPS6313402 U JP S6313402U JP 10638886 U JP10638886 U JP 10638886U JP 10638886 U JP10638886 U JP 10638886U JP S6313402 U JPS6313402 U JP S6313402U
- Authority
- JP
- Japan
- Prior art keywords
- erasing
- current
- filter
- generating means
- tape recorder
- 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
- Digital Magnetic Recording (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は回路図、第３図ａは制御信号の波形図、
第３図ｂはランプ波形発生回路及びローパスフイ
ルタの出力信号の波形図、第３図ｃは消去電流の
波形図である。
１…消去ヘツド、６…波形発生手段（ランプ波
形発生回路）、７…フイルタ（ローパスフイルタ
）。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Figure 2 is a circuit diagram, Figure 3a is a control signal waveform diagram,
FIG. 3b is a waveform diagram of the output signals of the ramp waveform generating circuit and the low-pass filter, and FIG. 3c is a waveform diagram of the erase current. DESCRIPTION OF SYMBOLS 1... Erase head, 6... Waveform generation means (ramp waveform generation circuit), 7... Filter (low pass filter).
Claims (1)
えられる制御信号により制御するようにしたテー
プレコーダにおける消去電流制御装置において、
前記制御信号を一定範囲で徐々に上昇または下降
する電圧に変換する波形発生手段と、この波形発
生手段の出力信号の変化を滑らかにするフイルタ
とから構成され、前記フイルタの出力で消去電流
を制御して消去ヘツドに供給することを特徴とす
るテープレコーダにおける消去電流制御装置。 In an erasing current control device for a tape recorder, the erasing current supplied to the erasing head is controlled by a control signal applied from the outside.
It is comprised of a waveform generating means that converts the control signal into a voltage that gradually increases or decreases within a certain range, and a filter that smoothes changes in the output signal of this waveform generating means, and controls the erase current by the output of the filter. An erasing current control device for a tape recorder, characterized in that the erasing current is supplied to an erasing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986106388U JPH0810834Y2 (en) | 1986-07-10 | 1986-07-10 | Erase current controller for tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986106388U JPH0810834Y2 (en) | 1986-07-10 | 1986-07-10 | Erase current controller for tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6313402U true JPS6313402U (en) | 1988-01-28 |
| JPH0810834Y2 JPH0810834Y2 (en) | 1996-03-29 |
Family
ID=30981698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986106388U Expired - Lifetime JPH0810834Y2 (en) | 1986-07-10 | 1986-07-10 | Erase current controller for tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810834Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5362309U (en) * | 1976-10-29 | 1978-05-26 | ||
| JPS58153208A (en) * | 1982-03-04 | 1983-09-12 | Matsushita Electric Ind Co Ltd | magnetic recording and reproducing device |
-
1986
- 1986-07-10 JP JP1986106388U patent/JPH0810834Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5362309U (en) * | 1976-10-29 | 1978-05-26 | ||
| JPS58153208A (en) * | 1982-03-04 | 1983-09-12 | Matsushita Electric Ind Co Ltd | magnetic recording and reproducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810834Y2 (en) | 1996-03-29 |
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