BE506781A - - Google Patents
Info
- Publication number
- BE506781A BE506781A BE506781DA BE506781A BE 506781 A BE506781 A BE 506781A BE 506781D A BE506781D A BE 506781DA BE 506781 A BE506781 A BE 506781A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplitude Modulation (AREA)
- Superheterodyne Receivers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US193095A US2816220A (en) | 1950-10-31 | 1950-10-31 | Frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE506781A true BE506781A (US06265458-20010724-C00056.png) |
Family
ID=22712270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE506781D BE506781A (US06265458-20010724-C00056.png) | 1950-10-31 |
Country Status (7)
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2878376A (en) * | 1954-10-18 | 1959-03-17 | Gen Electric | Transistor converter with emitter connected to series-resonant local oscillation circuit |
| US2880312A (en) * | 1955-02-02 | 1959-03-31 | I D E A Inc | Transistor oscillator-mixer with received and local oscillations applied between emitter and base |
| US2937343A (en) * | 1954-10-18 | 1960-05-17 | Gen Electric | Modulation system |
| US2963578A (en) * | 1949-06-11 | 1960-12-06 | Automatic Elect Lab | Signal translation apparatus employing transistors |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1000878B (de) * | 1953-09-02 | 1957-01-17 | Siemens Ag | Modulationsschaltung fuer Halbleiterverstaerker |
| BE538611A (US06265458-20010724-C00056.png) * | 1954-06-02 | 1900-01-01 | ||
| GB811294A (en) * | 1954-08-05 | 1959-04-02 | Emi Ltd | Improvements in or relating to modulating circuits |
| US2938173A (en) * | 1955-05-16 | 1960-05-24 | Honeywell Regulator Co | Measuring circuit using modulated transistor oscillator with temperature stabilization |
| US3030585A (en) * | 1957-05-09 | 1962-04-17 | Rca Corp | Frequency-modulation detector circuit |
| NL113274C (US06265458-20010724-C00056.png) * | 1957-11-15 | |||
| US2992328A (en) * | 1958-08-01 | 1961-07-11 | Gen Electric | Crystal controlled high frequency converter |
| DE1098552B (de) * | 1958-12-12 | 1961-02-02 | Philips Nv | Reflex-UEberlagerungs-Empfangsschaltung mit einer Transistor-Hochfrequenzvorverstaerkerstufe |
| US3010014A (en) * | 1959-09-07 | 1961-11-21 | Sanyo Electric Co | Frequency converter circuits |
| DE1158590B (de) * | 1960-08-25 | 1963-12-05 | Telefunken Patent | Schaltung zur Entkopplung der Schwingungskreise einer selbstschwingenden Transistor-Mischstufe |
| US3248672A (en) * | 1961-02-01 | 1966-04-26 | Hughes Aircraft Co | Transistor modulator and oscillator circuits providing power output beyond the normal cut-off frequency |
| US3316478A (en) * | 1963-10-23 | 1967-04-25 | Avco Corp | Regenerative frequency changer for multiplying and dividing |
| US3701035A (en) * | 1970-10-09 | 1972-10-24 | Girling Ltd | High frequency amplification system |
| AT370266B (de) * | 1978-12-15 | 1983-03-10 | Philips Nv | Selbstschwingende mischstufe fuer ukw-rundfunkempfaenger |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR804163A (fr) * | 1935-07-10 | 1936-10-17 | Csf | Perfectionnement aux oscillateurs à lampes |
| DE740371C (de) * | 1936-05-14 | 1943-10-19 | Telefunken Gmbh | Kurzwellenueberlagerungsempfaenger mit selbstschwingender Mischroehre |
| US2432183A (en) * | 1940-09-11 | 1947-12-09 | Hartford Nat Bank & Trust Co | Frequency converter system |
| US2315658A (en) * | 1941-08-30 | 1943-04-06 | Rca Corp | Negative resistance device |
| US2543067A (en) * | 1944-03-18 | 1951-02-27 | Farnsworth Res Corp | Oscillator converter |
| US2647957A (en) * | 1949-06-01 | 1953-08-04 | Bell Telephone Labor Inc | Transistor circuit |
| US2713117A (en) * | 1949-06-18 | 1955-07-12 | Sylvania Electric Prod | Heterodyne converter |
| US2570436A (en) * | 1949-09-30 | 1951-10-09 | Rca Corp | Crystal controlled oscillator |
-
0
- NL NL7011338.A patent/NL165056B/xx unknown
- BE BE506781D patent/BE506781A/xx unknown
-
1950
- 1950-10-31 US US193095A patent/US2816220A/en not_active Expired - Lifetime
-
1951
- 1951-10-25 GB GB24992/51A patent/GB713674A/en not_active Expired
- 1951-10-25 FR FR1048664D patent/FR1048664A/fr not_active Expired
- 1951-10-31 CH CH308384D patent/CH308384A/de unknown
- 1951-10-31 DE DER7499A patent/DE882103C/de not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2963578A (en) * | 1949-06-11 | 1960-12-06 | Automatic Elect Lab | Signal translation apparatus employing transistors |
| US2878376A (en) * | 1954-10-18 | 1959-03-17 | Gen Electric | Transistor converter with emitter connected to series-resonant local oscillation circuit |
| US2937343A (en) * | 1954-10-18 | 1960-05-17 | Gen Electric | Modulation system |
| US2880312A (en) * | 1955-02-02 | 1959-03-31 | I D E A Inc | Transistor oscillator-mixer with received and local oscillations applied between emitter and base |
Also Published As
| Publication number | Publication date |
|---|---|
| CH308384A (de) | 1955-07-15 |
| US2816220A (en) | 1957-12-10 |
| DE882103C (de) | 1953-07-06 |
| GB713674A (en) | 1954-08-18 |
| NL165056B (nl) | |
| FR1048664A (fr) | 1953-12-23 |
