JPS62168163U - - Google Patents
Info
- Publication number
- JPS62168163U JPS62168163U JP5456386U JP5456386U JPS62168163U JP S62168163 U JPS62168163 U JP S62168163U JP 5456386 U JP5456386 U JP 5456386U JP 5456386 U JP5456386 U JP 5456386U JP S62168163 U JPS62168163 U JP S62168163U
- Authority
- JP
- Japan
- Prior art keywords
- level
- circuit
- compression
- control circuit
- detection
- 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
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 230000000295 complement effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の圧縮伸長回路の回路図、第２
図はその特性図、第３図はその他の実施例の回路
図である。
１２…圧縮回路、１３…伸長回路、１５…増幅
器、１６…検波回路、１９…演算増幅器、２１…
定損失回路、２２…レベル制御回路、２３…レベ
ル検出回路、２４…定損失回路、２５…レベル制
御回路、３２…可変インピーダンス回路。
Figure 1 is a circuit diagram of the compression/expansion circuit of the present invention;
The figure is a characteristic diagram thereof, and FIG. 3 is a circuit diagram of another embodiment. 12... Compression circuit, 13... Expansion circuit, 15... Amplifier, 16... Detection circuit, 19... Operational amplifier, 21...
Constant loss circuit, 22... Level control circuit, 23... Level detection circuit, 24... Constant loss circuit, 25... Level control circuit, 32... Variable impedance circuit.
Claims (1)
レベルが該基準レベルより小さいときリニアな特
性を呈し、所定レベルより大きいとき圧縮特性を
呈する第１のレベル制御回路と、該検出レベルが
該所定レベルより小さいときリニアな特性を呈し
、該所定レベルより大きいとき該圧縮特性に対し
て相補的な伸長特性を呈する第２のレベル制御回
路とを備えることを特徴とする圧縮伸長回路。 a detection circuit that detects the level of an input signal; a first level control circuit that exhibits linear characteristics when the detection level is lower than the reference level; and a first level control circuit that exhibits compression characteristics when the detection level is higher than the predetermined level; A compression/expansion circuit comprising: a second level control circuit exhibiting linear characteristics when the level is smaller than the predetermined level, and exhibiting an expansion characteristic complementary to the compression characteristic when the level is greater than the predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5456386U JPS62168163U (en) | 1986-04-11 | 1986-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5456386U JPS62168163U (en) | 1986-04-11 | 1986-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62168163U true JPS62168163U (en) | 1987-10-24 |
Family
ID=30881670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5456386U Pending JPS62168163U (en) | 1986-04-11 | 1986-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200138A (en) * | 1990-11-29 | 1992-07-21 | Rohm Co Ltd | Transmission reception control circuit for cordless telephone set |
| JP2010130278A (en) * | 2008-11-27 | 2010-06-10 | Kenwood Corp | Signal processing apparatus, switching circuit, and method of correcting characteristic of semiconductor device |
-
1986
- 1986-04-11 JP JP5456386U patent/JPS62168163U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200138A (en) * | 1990-11-29 | 1992-07-21 | Rohm Co Ltd | Transmission reception control circuit for cordless telephone set |
| JP2010130278A (en) * | 2008-11-27 | 2010-06-10 | Kenwood Corp | Signal processing apparatus, switching circuit, and method of correcting characteristic of semiconductor device |
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