BE643555A - - Google Patents
Info
- Publication number
- BE643555A BE643555A BE643555A BE643555A BE643555A BE 643555 A BE643555 A BE 643555A BE 643555 A BE643555 A BE 643555A BE 643555 A BE643555 A BE 643555A BE 643555 A BE643555 A BE 643555A
- Authority
- BE
- Belgium
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
- H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
-
- 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
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US256846A US3264564A (en) | 1963-02-07 | 1963-02-07 | Variable impedance device for transistor automatic gain control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE643555A true BE643555A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1964-05-29 |
Family
ID=22973830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE643555A BE643555A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1963-02-07 | 1964-02-07 |
Country Status (6)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3490046A (en) * | 1967-04-05 | 1970-01-13 | Electrohome Ltd | Automatic gain control and overload protection for signal receiving systems |
| US4905887A (en) * | 1969-12-15 | 1990-03-06 | Heinz Schoer | Process for soldering aluminum containing workpieces |
| US4249137A (en) * | 1978-12-11 | 1981-02-03 | Rca Corporation | Amplifier system with AGC, as for an AM radio |
| DE3248491A1 (de) * | 1982-12-29 | 1984-07-05 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von polymerisaten der vinylphosphonsaeure in protischen loesungsmitteln |
| JPS6220405A (ja) * | 1985-07-18 | 1987-01-29 | Pioneer Electronic Corp | 増幅度調整回路 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429513A (en) * | 1944-02-11 | 1947-10-21 | Hazeltine Research Inc | Gain-control arrangement |
| US3002909A (en) * | 1959-07-10 | 1961-10-03 | Keystone Shipping Company | Method of inhibiting corrosion |
-
1963
- 1963-02-07 US US256846A patent/US3264564A/en not_active Expired - Lifetime
-
1964
- 1964-01-27 GB GB3466/64A patent/GB1022081A/en not_active Expired
- 1964-01-30 BR BR156551/64A patent/BR6456551D0/pt unknown
- 1964-02-04 DE DER37125A patent/DE1188658B/de active Pending
- 1964-02-06 NL NL646400974A patent/NL143089B/xx unknown
- 1964-02-07 BE BE643555A patent/BE643555A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1188658B (de) | 1965-03-11 |
| GB1022081A (en) | 1966-03-09 |
| US3264564A (en) | 1966-08-02 |
| NL6400974A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1964-08-10 |
| NL143089B (nl) | 1974-08-15 |
| BR6456551D0 (pt) | 1973-08-09 |