JPH02128253U - - Google Patents
Info
- Publication number
- JPH02128253U JPH02128253U JP3322789U JP3322789U JPH02128253U JP H02128253 U JPH02128253 U JP H02128253U JP 3322789 U JP3322789 U JP 3322789U JP 3322789 U JP3322789 U JP 3322789U JP H02128253 U JPH02128253 U JP H02128253U
- Authority
- JP
- Japan
- Prior art keywords
- control voltage
- recording
- gain
- changing means
- gain changing
- 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
- 230000005236 sound signal Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 12
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の録音再生装置の一実施例を示
した回路図、第２図は第１図に示した電圧制御型
アンプの特性例を示した図、第３図は第１図に示
した電圧制御型アンプの詳細例を示した回路図、
第４図は第１図に示した電圧制御型アンプの他の
詳細例を示した回路図、第５図は第４図に示した
回路の減衰特性図、第６図は第４図に示した回路
の他の例を示した回路図、第７図は第６図に示し
た回路の減衰特性図、第８図は本考案の他の実施
例を示した回路図、第９図は本考案の更に他の実
施例を示した回路図、第１０図は従来の録音再生
装置の一例を示した回路図、第１１図は従来の録
音再生装置の他の例を示した一部回路図である。
１１，１２……録音、再生用電圧制御型アンプ
、１３……音声処理回路、１４，１５……ダイオ
ード、１６，１８……入、出力端子、１７……制
御端子、２０，２１……ボリユーム、２２……ト
ランジスタ。
Figure 1 is a circuit diagram showing an embodiment of the recording/playback device of the present invention, Figure 2 is a diagram showing an example of the characteristics of the voltage-controlled amplifier shown in Figure 1, and Figure 3 is similar to Figure 1. A circuit diagram showing a detailed example of the voltage-controlled amplifier shown in FIG.
Fig. 4 is a circuit diagram showing another detailed example of the voltage-controlled amplifier shown in Fig. 1, Fig. 5 is an attenuation characteristic diagram of the circuit shown in Fig. 4, and Fig. 6 is a diagram showing the attenuation characteristics of the circuit shown in Fig. 4. 7 is an attenuation characteristic diagram of the circuit shown in FIG. 6, FIG. 8 is a circuit diagram showing another embodiment of the present invention, and FIG. 9 is a diagram showing the attenuation characteristics of the circuit shown in FIG. 6. A circuit diagram showing still another embodiment of the invention, FIG. 10 is a circuit diagram showing an example of a conventional recording/playback device, and FIG. 11 is a partial circuit diagram showing another example of a conventional recording/playback device. It is. 11, 12... Voltage controlled amplifier for recording and playback, 13... Audio processing circuit, 14, 15... Diode, 16, 18... Input, output terminal, 17... Control terminal, 20, 21... Volume , 22...transistor.
Claims (1)
から音声信号を再生して出力する機能を持ち、更
に録音時、前記入力音声信号をモニタとして出力
する機能を有する音声処理手段を備えた録音再生
装置において、前記音声処理手段の入力段に挿入
され、制御電圧によつて利得が変化される第１の
利得変化手段と、前記音声処理手段の出力段に挿
入され、制御電圧によつて利得が変化される第２
の利得変化手段と、録音時、前記制御電圧を第１
の利得変化手段にのみ印加し、第２の利得変化手
段へは制御電圧の代りに所定電圧を印加すると共
に、再生時、前記制御電圧を第２の利得変化手段
に印加する切替手段とを具備したことを特徴とす
る録音再生装置。 A recording and reproducing device having a function of recording an input audio signal on a tape, reproducing and outputting the audio signal from the tape, and further having an audio processing means having a function of outputting the input audio signal as a monitor during recording, a first gain changing means inserted into the input stage of the audio processing means, the gain of which is changed by the control voltage; and a first gain changing means inserted into the output stage of the audio processing means, the gain of which is changed by the control voltage. Second
gain changing means, and during recording, the control voltage is set to the first
a predetermined voltage instead of the control voltage is applied to the second gain changing means, and a switching means for applying the control voltage to the second gain changing means during reproduction. A recording/playback device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989033227U JPH0734533Y2 (en) | 1989-03-27 | 1989-03-27 | Recording / playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989033227U JPH0734533Y2 (en) | 1989-03-27 | 1989-03-27 | Recording / playback device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02128253U true JPH02128253U (en) | 1990-10-23 |
| JPH0734533Y2 JPH0734533Y2 (en) | 1995-08-02 |
Family
ID=31536721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989033227U Expired - Lifetime JPH0734533Y2 (en) | 1989-03-27 | 1989-03-27 | Recording / playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734533Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029907A (en) * | 1983-07-28 | 1985-02-15 | Sanyo Electric Co Ltd | Tape recorder circuit |
-
1989
- 1989-03-27 JP JP1989033227U patent/JPH0734533Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029907A (en) * | 1983-07-28 | 1985-02-15 | Sanyo Electric Co Ltd | Tape recorder circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734533Y2 (en) | 1995-08-02 |
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