BE444311A - - Google Patents
Info
- Publication number
- BE444311A BE444311A BE444311DA BE444311A BE 444311 A BE444311 A BE 444311A BE 444311D A BE444311D A BE 444311DA BE 444311 A BE444311 A BE 444311A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
- H03D9/06—Transference of modulation using distributed inductance and capacitance
- H03D9/065—Transference of modulation using distributed inductance and capacitance by means of discharge tubes having more than two electrodes
-
- 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
- H03D7/14—Balanced arrangements
- H03D7/1408—Balanced arrangements with diodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
- H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL606374X | 1941-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE444311A true BE444311A (it) |
Family
ID=19787953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE444311D BE444311A (it) | 1941-01-31 |
Country Status (5)
Country | Link |
---|---|
US (1) | US2441452A (it) |
BE (1) | BE444311A (it) |
DE (1) | DE872571C (it) |
FR (1) | FR878960A (it) |
GB (1) | GB606374A (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2636980A (en) * | 1953-04-28 | |||
NL64724C (it) * | 1941-07-30 | 1949-11-15 | ||
NL72257C (it) * | 1943-03-27 | |||
US2591983A (en) * | 1943-11-12 | 1952-04-08 | Hartford Nat Bank & Trust Co | Mixing circuit arrangement |
FR937998A (it) * | 1944-07-26 | 1948-10-12 | ||
BE467878A (it) * | 1944-08-08 | |||
US2515441A (en) * | 1947-06-25 | 1950-07-18 | Avco Mfg Corp | Antenna input circuits |
US2594167A (en) * | 1948-07-30 | 1952-04-22 | Rca Corp | Ultrahigh-frequency bridge circuits |
US2664501A (en) * | 1949-08-10 | 1953-12-29 | Wilcox Gay Corp | Frequency conversion system |
US2787705A (en) * | 1951-06-25 | 1957-04-02 | Hazeltine Research Inc | High-frequency wave-signal tuning device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB420754A (en) * | 1932-06-04 | 1934-12-06 | Telefunken Gmbh | Improvements in or relating to thermionic apparatus for the production or amplification of ultra short waves |
US2094470A (en) * | 1934-10-20 | 1937-09-28 | Rca Corp | Multiple function tube |
US2270791A (en) * | 1939-07-13 | 1942-01-20 | Rca Corp | Oscillator-modulator circuit |
NL58997C (it) * | 1940-05-30 | |||
GB554675A (en) * | 1942-03-13 | 1943-07-14 | Philips Nv | Improvements in or relating to frequency changing devices, more particularly for very short waves |
-
0
- BE BE444311D patent/BE444311A/xx unknown
-
1942
- 1942-01-28 DE DEN2329D patent/DE872571C/de not_active Expired
- 1942-01-31 FR FR878960D patent/FR878960A/fr not_active Expired
-
1943
- 1943-03-23 US US480198A patent/US2441452A/en not_active Expired - Lifetime
-
1946
- 1946-01-14 GB GB1201/46A patent/GB606374A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2441452A (en) | 1948-05-11 |
FR878960A (fr) | 1943-02-10 |
DE872571C (de) | 1953-04-02 |
GB606374A (en) | 1948-08-12 |