JPS5729368Y2 - - Google Patents
Info
- Publication number
- JPS5729368Y2 JPS5729368Y2 JP1977015432U JP1543277U JPS5729368Y2 JP S5729368 Y2 JPS5729368 Y2 JP S5729368Y2 JP 1977015432 U JP1977015432 U JP 1977015432U JP 1543277 U JP1543277 U JP 1543277U JP S5729368 Y2 JPS5729368 Y2 JP S5729368Y2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- 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
- H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Networks Using Active Elements (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977015432U JPS5729368Y2 (enExample) | 1977-02-10 | 1977-02-10 | |
| US05/877,385 US4168472A (en) | 1977-02-10 | 1978-02-13 | Variable gain controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977015432U JPS5729368Y2 (enExample) | 1977-02-10 | 1977-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53112250U JPS53112250U (enExample) | 1978-09-07 |
| JPS5729368Y2 true JPS5729368Y2 (enExample) | 1982-06-28 |
Family
ID=11888619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977015432U Expired JPS5729368Y2 (enExample) | 1977-02-10 | 1977-02-10 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4168472A (enExample) |
| JP (1) | JPS5729368Y2 (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842945C3 (de) * | 1978-10-02 | 1981-11-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltung zur Erzeugung eines Steuersignals zur Steuerung des Übertragungsmaßes von elektronisch steuerbaren Verstärkungs-oder Dämpfungsgliedern |
| US4485351A (en) * | 1981-09-28 | 1984-11-27 | Philips Kommunikations Industrie Ag | Circuit for deriving of signals and counter cycle signals from one sided input signal |
| GB8608087D0 (en) * | 1986-04-02 | 1986-05-08 | Plessey Co Plc | Variable resistors |
| GB2267621B (en) * | 1992-06-02 | 1996-01-03 | Soundtracs Plc | Audio frequency filter |
| US5459791A (en) * | 1992-06-02 | 1995-10-17 | Soundtracs Plc | Audio frequency filter |
| JP3469486B2 (ja) * | 1998-12-25 | 2003-11-25 | 株式会社東芝 | 可変利得回路 |
| US6597301B2 (en) | 2001-10-03 | 2003-07-22 | Shure Incorporated | Apparatus and method for level-dependent companding for wireless audio noise reduction |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045731A (en) * | 1974-11-21 | 1977-08-30 | Takeda Riken Kogyo Kabushikikaisha | Filter having an automatically controlled variable cut-off frequency |
| JPS58685B2 (ja) * | 1975-03-05 | 1983-01-07 | 株式会社東芝 | Ａｇｃ カイロ |
| JPS51117816A (en) * | 1975-04-09 | 1976-10-16 | Sony Corp | Receiver |
-
1977
- 1977-02-10 JP JP1977015432U patent/JPS5729368Y2/ja not_active Expired
-
1978
- 1978-02-13 US US05/877,385 patent/US4168472A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53112250U (enExample) | 1978-09-07 |
| US4168472A (en) | 1979-09-18 |