DE3518235C2 - - Google Patents
Info
- Publication number
- DE3518235C2 DE3518235C2 DE19853518235 DE3518235A DE3518235C2 DE 3518235 C2 DE3518235 C2 DE 3518235C2 DE 19853518235 DE19853518235 DE 19853518235 DE 3518235 A DE3518235 A DE 3518235A DE 3518235 C2 DE3518235 C2 DE 3518235C2
- Authority
- DE
- Germany
- Prior art keywords
- field effect
- control
- pass filter
- input
- signal
- 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.)
- Expired - Lifetime
Links
- 230000005669 field effect Effects 0.000 claims description 70
- 230000001629 suppression Effects 0.000 claims description 41
- 230000009467 reduction Effects 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 24
- 230000004044 response Effects 0.000 claims description 22
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 14
- 239000013078 crystal Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Networks Using Active Elements (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853518235 DE3518235A1 (de) | 1985-05-21 | 1985-05-21 | Dynamische rauschunterdrueckungsschaltung |
| NL8501477A NL8501477A (nl) | 1985-05-21 | 1985-05-23 | Dynamische ruisonderdrukker. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853518235 DE3518235A1 (de) | 1985-05-21 | 1985-05-21 | Dynamische rauschunterdrueckungsschaltung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3518235A1 DE3518235A1 (de) | 1986-11-27 |
| DE3518235C2 true DE3518235C2 (fr) | 1991-08-22 |
Family
ID=6271256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853518235 Granted DE3518235A1 (de) | 1985-05-21 | 1985-05-21 | Dynamische rauschunterdrueckungsschaltung |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3518235A1 (fr) |
| NL (1) | NL8501477A (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638037A (en) * | 1970-05-26 | 1972-01-25 | Eastech | Automatic tracking filter |
| DE2352855B2 (de) * | 1973-10-22 | 1979-04-12 | Industrie Automation Waege- Und Prozesstechnik Gmbh & Co, 6900 Heidelberg | Filteranordnung für Einrichtungen zum elektrischen Messen mechanischer Größen |
| US4207543A (en) * | 1978-07-18 | 1980-06-10 | Izakson Ilya S | Adaptive filter network |
-
1985
- 1985-05-21 DE DE19853518235 patent/DE3518235A1/de active Granted
- 1985-05-23 NL NL8501477A patent/NL8501477A/nl not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL8501477A (nl) | 1986-12-16 |
| DE3518235A1 (de) | 1986-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |