JPH01126621U - - Google Patents
Info
- Publication number
- JPH01126621U JPH01126621U JP1765188U JP1765188U JPH01126621U JP H01126621 U JPH01126621 U JP H01126621U JP 1765188 U JP1765188 U JP 1765188U JP 1765188 U JP1765188 U JP 1765188U JP H01126621 U JPH01126621 U JP H01126621U
- Authority
- JP
- Japan
- Prior art keywords
- agc
- controlling
- function
- switching device
- input
- 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
- 238000011084 recovery Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は本考案のＡＧＣアンプの入出力状態の波
形図、第３図は従来例を示すブロツク図、第４図
は第３図の従来例のＡＧＣアンプの入出力状態の
波形図である。
１……信号源、２……ＡＧＣアンプ、３，４，
５……ＡＧＣ／ＡＧＣホールド機能切換装置、６
……ＡＧＣ切換制御装置、７……入力切換装置。
FIG. 1 is a block diagram showing an embodiment of the present invention.
Fig. 2 is a waveform diagram of the input/output state of the AGC amplifier of the present invention, Fig. 3 is a block diagram showing a conventional example, and Fig. 4 is a waveform diagram of the input/output state of the AGC amplifier of the conventional example shown in Fig. 3. . 1... Signal source, 2... AGC amplifier, 3, 4,
5...AGC/AGC hold function switching device, 6
...AGC switching control device, 7...Input switching device.
Claims (1)
定されたある一定電圧にまで、増幅する機能を有
するＡＧＣ回路と、ＡＧＣ機能とＡＧＣホールド
機能とを切換える手段と、前記切換装置を制御す
る制御装置と、入力信号源と前記ＡＧＣ回路との
間に入力信号のしや断を目的とした入力切換装置
を有し、前記入力切換装置を制御することでＡＧ
ＣホールドからＡＧＣに切換えられた時のＡＧＣ
復帰までの時間を制御することを特徴とする磁気
記憶装置。 An AGC circuit having a function of amplifying up to a certain set voltage when a voltage of a certain threshold value or more is applied, means for switching between the AGC function and the AGC hold function, and a control for controlling the switching device. The device has an input switching device between the input signal source and the AGC circuit for the purpose of cutting off the input signal, and by controlling the input switching device, the AG
AGC when switched from C hold to AGC
A magnetic storage device characterized by controlling the time until recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1765188U JPH01126621U (en) | 1988-02-12 | 1988-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1765188U JPH01126621U (en) | 1988-02-12 | 1988-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126621U true JPH01126621U (en) | 1989-08-30 |
Family
ID=31231624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1765188U Pending JPH01126621U (en) | 1988-02-12 | 1988-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126621U (en) |
-
1988
- 1988-02-12 JP JP1765188U patent/JPH01126621U/ja active Pending
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