JPH0349604U - - Google Patents
Info
- Publication number
- JPH0349604U JPH0349604U JP10883989U JP10883989U JPH0349604U JP H0349604 U JPH0349604 U JP H0349604U JP 10883989 U JP10883989 U JP 10883989U JP 10883989 U JP10883989 U JP 10883989U JP H0349604 U JPH0349604 U JP H0349604U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switching
- time constant
- recording
- activating
- 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
- 230000003213 activating effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Description
第１図は本考案の１実施例を示す回路図、第２
図及び第３図は、それぞれ本考案の各モードに於
けるプリエンフアシス特性図とデイエンフアシス
特性図、第４図は従来の回路図、第５図及び第６
図はそれぞれ従来のプリエンフアシス特性図及び
デイエンフアシス特性図である。
３……録音イコライザアンプ、４……録音・再
生ヘツド、９……再生イコライザアンプ、ＳＷ１
……第１スイツチ、ＳＷ２……第２スイツチ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing one embodiment of the present invention.
3 and 3 are pre-emphasis characteristic diagrams and de-emphasis characteristic diagrams in each mode of the present invention, respectively, FIG. 4 is a conventional circuit diagram, and FIGS. 5 and 6.
The figures are a conventional pre-emphasis characteristic diagram and a conventional de-emphasis characteristic diagram, respectively. 3... Recording equalizer amplifier, 4... Recording/playback head, 9... Playback equalizer amplifier, SW 1
...First switch, SW 2 ...Second switch.
Claims (1)
に切換えできる磁気記録再生装置において、録音
イコライザ回路の時定数を切換える第１のスイツ
チと、再生イコライザ回路の時定数を切換える第
２のスイツチとを備え、ＬＰ又はＥＰモードで録
音時は前記第１スイツチを作動せしめ、ＥＰモー
ドで再生時は前記第２スイツチを作動せしめて、
時定数を切換えることを特徴とする音声周波数補
正回路。 A magnetic recording/reproducing device capable of switching tape speed between SP, LP, and EP modes, comprising a first switch for switching a time constant of a recording equalizer circuit, and a second switch for switching a time constant of a reproduction equalizer circuit, Activating the first switch when recording in LP or EP mode, activating the second switch when playing back in EP mode,
An audio frequency correction circuit characterized by switching a time constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10883989U JPH0349604U (en) | 1989-09-18 | 1989-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10883989U JPH0349604U (en) | 1989-09-18 | 1989-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0349604U true JPH0349604U (en) | 1991-05-15 |
Family
ID=31657455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10883989U Pending JPH0349604U (en) | 1989-09-18 | 1989-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419940C (en) * | 2002-02-28 | 2008-09-17 | 有限会社大和电子工业 | Open and close type cylindrical heater for glass tube vacuum sealing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284406A (en) * | 1985-10-09 | 1987-04-17 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1989
- 1989-09-18 JP JP10883989U patent/JPH0349604U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284406A (en) * | 1985-10-09 | 1987-04-17 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419940C (en) * | 2002-02-28 | 2008-09-17 | 有限会社大和电子工业 | Open and close type cylindrical heater for glass tube vacuum sealing |
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