JPS6195112U - - Google Patents
Info
- Publication number
- JPS6195112U JPS6195112U JP18162684U JP18162684U JPS6195112U JP S6195112 U JPS6195112 U JP S6195112U JP 18162684 U JP18162684 U JP 18162684U JP 18162684 U JP18162684 U JP 18162684U JP S6195112 U JPS6195112 U JP S6195112U
- Authority
- JP
- Japan
- Prior art keywords
- attenuation
- amount
- signal
- circuit
- adjustment device
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は従来の自動記録レベル調整装置の構成
を示す図、第２図は第１図の構成における各部の
波形図、第３図はこの考案による自動記録レベル
調整装置の一実施例を示す図、第４図はこの考案
による各部の波形図である。
３…減衰器、４…信号増幅器、８…比較器、９
…基準電圧源、１２…検波回路、１３…制御回路
、１４…タイマー回路。
FIG. 1 is a diagram showing the configuration of a conventional automatic recording level adjustment device, FIG. 2 is a waveform diagram of each part in the configuration of FIG. 1, and FIG. 3 is an embodiment of the automatic recording level adjustment device according to this invention. 4 are waveform diagrams of various parts according to this invention. 3...Attenuator, 4...Signal amplifier, 8...Comparator, 9
...Reference voltage source, 12...Detection circuit, 13...Control circuit, 14...Timer circuit.
Claims (1)
この検波回路の出力に接続されたコンデンサ及び
抵抗よりなる充放電回路と、この充放電回路のコ
ンデンサの端子電圧と基準電圧を比較し上記信号
増幅器の前段に設けられた信号の減衰器の減衰量
を変化する様に構成した自動記録レベル調整装置
において、信号レベルの減衰量を変化させた時、
上記比較回路の入力端子に入力される一方の入力
電圧を減衰量の変化量と等価になる様に減衰せし
めると共に一定時間後にその減衰を停止する様に
構成した自動記録レベル調整装置。 a detection circuit connected to the output of the signal amplification circuit;
A charging/discharging circuit consisting of a capacitor and a resistor is connected to the output of this detection circuit, and the terminal voltage of the capacitor of this charging/discharging circuit is compared with a reference voltage, and the attenuation amount of the signal attenuator provided at the front stage of the signal amplifier is determined. In an automatic recording level adjustment device configured to change the signal level, when the amount of signal level attenuation is changed,
An automatic recording level adjustment device configured to attenuate one input voltage input to the input terminal of the comparison circuit so as to be equivalent to the amount of change in attenuation amount, and to stop the attenuation after a certain period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18162684U JPH042495Y2 (en) | 1984-11-29 | 1984-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18162684U JPH042495Y2 (en) | 1984-11-29 | 1984-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195112U true JPS6195112U (en) | 1986-06-19 |
| JPH042495Y2 JPH042495Y2 (en) | 1992-01-28 |
Family
ID=30739169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18162684U Expired JPH042495Y2 (en) | 1984-11-29 | 1984-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042495Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465909A (en) * | 1987-09-04 | 1989-03-13 | Matsushita Electric Ind Co Ltd | Sound recording level setting circuit |
| JPH03130616U (en) * | 1990-04-17 | 1991-12-27 | ||
| WO2024070231A1 (en) * | 2022-09-29 | 2024-04-04 | ヤマハ株式会社 | Output control device, output control method, and program |
-
1984
- 1984-11-29 JP JP18162684U patent/JPH042495Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465909A (en) * | 1987-09-04 | 1989-03-13 | Matsushita Electric Ind Co Ltd | Sound recording level setting circuit |
| JPH03130616U (en) * | 1990-04-17 | 1991-12-27 | ||
| WO2024070231A1 (en) * | 2022-09-29 | 2024-04-04 | ヤマハ株式会社 | Output control device, output control method, and program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042495Y2 (en) | 1992-01-28 |
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