BE623643A - - Google Patents
Info
- Publication number
- BE623643A BE623643A BE623643DA BE623643A BE 623643 A BE623643 A BE 623643A BE 623643D A BE623643D A BE 623643DA BE 623643 A BE623643 A BE 623643A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/14—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of semiconductor devices having more than two electrodes
-
- 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
-
- 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
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US145833A US3172040A (en) | 1961-10-18 | 1961-10-18 | Am/fm receiver having automatic gain control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE623643A true BE623643A (es) |
Family
ID=22514766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE623643D BE623643A (es) | 1961-10-18 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3172040A (es) |
| BE (1) | BE623643A (es) |
| DE (1) | DE1201424B (es) |
| FR (1) | FR1337030A (es) |
| GB (1) | GB989860A (es) |
| NL (1) | NL284427A (es) |
| SE (1) | SE308742B (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3287644A (en) * | 1963-05-20 | 1966-11-22 | Zenith Radio Corp | Automatic gain controlled plural wave band radio receiver |
| US3289088A (en) * | 1963-05-29 | 1966-11-29 | Gerald M Berger | Automatic non-linear gain control circuit |
| US3389338A (en) * | 1964-11-24 | 1968-06-18 | Bendix Corp | Simplified band switching for fm-am receiver |
| US3457513A (en) * | 1965-10-11 | 1969-07-22 | Avco Corp | Multi-purpose receiver with single detector for demodulating a plurality of types of signals |
| US3382440A (en) * | 1966-10-10 | 1968-05-07 | William T. Turner | Apparatus for automatically converting a radio receiver to an fm or vhf receiver |
| US3528013A (en) * | 1967-09-25 | 1970-09-08 | Zenith Radio Corp | Dual frequency intermediate-frequency coupling circuit |
| US3679979A (en) * | 1969-06-26 | 1972-07-25 | Sarkes Tarzian | Am, fm, and fm stereo tuner having simplified am to fm switching means |
| GB1284007A (en) * | 1969-09-17 | 1972-08-02 | Matsushita Electric Ind Co Ltd | Am-fm radio receiver |
| US4050022A (en) * | 1975-10-20 | 1977-09-20 | General Electric Company | AM-FM receiver having improved mode conversion |
| US4150336A (en) * | 1978-01-06 | 1979-04-17 | Quadracast Systems, Inc. | AM/FM Intermediate frequency gain stage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA448851A (en) * | 1948-06-01 | Wentz Huff John | Combined amplitude modulation and frequency modulation receiver stage | |
| BE514215A (es) * | 1951-09-17 | |||
| US2709748A (en) * | 1952-08-16 | 1955-05-31 | Westinghouse Electric Corp | Radio detector apparatus |
-
0
- BE BE623643D patent/BE623643A/xx unknown
- NL NL284427D patent/NL284427A/xx unknown
-
1961
- 1961-10-18 US US145833A patent/US3172040A/en not_active Expired - Lifetime
-
1962
- 1962-10-02 GB GB37398/62A patent/GB989860A/en not_active Expired
- 1962-10-17 FR FR912520A patent/FR1337030A/fr not_active Expired
- 1962-10-17 SE SE11145/62A patent/SE308742B/xx unknown
- 1962-10-17 DE DER33700A patent/DE1201424B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1201424B (de) | 1965-09-23 |
| SE308742B (es) | 1969-02-24 |
| GB989860A (en) | 1965-04-22 |
| NL284427A (es) | |
| FR1337030A (fr) | 1963-09-06 |
| US3172040A (en) | 1965-03-02 |