BE517017A - - Google Patents
Info
- Publication number
- BE517017A BE517017A BE517017DA BE517017A BE 517017 A BE517017 A BE 517017A BE 517017D A BE517017D A BE 517017DA BE 517017 A BE517017 A BE 517017A
- 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
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/08—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between the same two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL309361X | 1952-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE517017A true BE517017A (fi) |
Family
ID=19783579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE517017D BE517017A (fi) | 1952-01-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2812433A (fi) |
| BE (1) | BE517017A (fi) |
| CH (1) | CH309361A (fi) |
| FR (1) | FR1069939A (fi) |
| GB (1) | GB718959A (fi) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2964623A (en) * | 1958-02-11 | 1960-12-13 | Zenith Radio Corp | Receiver having two input sources and respective tuning means, one of which, when selected, grounds the non-used source for both incoming interference and outgoing radiation signals |
| US3036212A (en) * | 1958-08-18 | 1962-05-22 | Nurnberger Schwachstrom Bauele | Combined television channel switch |
| US2978578A (en) * | 1959-01-28 | 1961-04-04 | Philco Corp | Improved transistorized mixing circuit |
| GB1284007A (en) * | 1969-09-17 | 1972-08-02 | Matsushita Electric Ind Co Ltd | Am-fm radio receiver |
| US4825467A (en) * | 1986-11-25 | 1989-04-25 | International Telesystems, Inc. | Restricted access television transmission system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1757325A (en) * | 1925-08-24 | 1930-05-06 | Drahtlose Telegraphie Gmbh | Receiver for undamped oscillations |
| CH174230A (de) * | 1933-05-11 | 1934-12-31 | Telefunken Gmbh | Zwischenfrequenz-Empfänger. |
| GB455649A (en) * | 1935-04-26 | 1936-10-26 | Marconi Wireless Telegraph Co | Improvements in or relating to radio receivers |
| GB502178A (en) * | 1937-08-12 | 1939-03-13 | Bernard John Banfield | Improvements in or relating to radio receivers and the like |
| US2261778A (en) * | 1939-03-31 | 1941-11-04 | Rca Corp | Radio tuning |
| US2278030A (en) * | 1940-07-19 | 1942-03-31 | Zenith Radio Corp | Radio receiving apparatus |
| US2516272A (en) * | 1945-12-07 | 1950-07-25 | Philco Corp | Frequency conversion system |
| US2512481A (en) * | 1947-06-25 | 1950-06-20 | Avco Mfg Corp | Antenna input circuits |
-
0
- BE BE517017D patent/BE517017A/xx unknown
-
1953
- 1953-01-02 US US329312A patent/US2812433A/en not_active Expired - Lifetime
- 1953-01-16 GB GB1354/53A patent/GB718959A/en not_active Expired
- 1953-01-19 FR FR1069939D patent/FR1069939A/fr not_active Expired
- 1953-01-19 CH CH309361D patent/CH309361A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH309361A (de) | 1955-08-31 |
| US2812433A (en) | 1957-11-05 |
| GB718959A (en) | 1954-11-24 |
| FR1069939A (fr) | 1954-07-13 |