BE493900A - - Google Patents
Info
- Publication number
- BE493900A BE493900A BE493900DA BE493900A BE 493900 A BE493900 A BE 493900A BE 493900D A BE493900D A BE 493900DA BE 493900 A BE493900 A BE 493900A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL279129X | 1949-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493900A true BE493900A (US07922777-20110412-C00004.png) |
Family
ID=19782232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493900D BE493900A (US07922777-20110412-C00004.png) | 1949-02-16 |
Country Status (7)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967593C (de) * | 1953-12-25 | 1957-11-28 | Max Braun Fa | Additive Trioden-Mischstufe fuer sehr hohe Frequenzen |
| US2980795A (en) * | 1959-12-09 | 1961-04-18 | Hazeltine Research Inc | Autodyne converter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR673718A (fr) * | 1928-08-25 | 1930-01-18 | Radiomodulation par les lampes à faible capacité intérieure | |
| US2022085A (en) * | 1931-12-14 | 1935-11-26 | Hazeltine Corp | Radioreceiver |
| US2053414A (en) * | 1932-02-12 | 1936-09-08 | Rca Corp | Heterodyne receiving system |
| US2034513A (en) * | 1933-04-01 | 1936-03-17 | Rca Corp | Combined detector oscillator circuit |
| US2153778A (en) * | 1933-04-27 | 1939-04-11 | Rca Corp | Circuit arrangement |
| US2347826A (en) * | 1941-10-21 | 1944-05-02 | Lorain County Radio Corp | High frequency switching means |
| US2409577A (en) * | 1943-12-03 | 1946-10-15 | Rca Corp | Synchronized blocking oscillator |
| US2516272A (en) * | 1945-12-07 | 1950-07-25 | Philco Corp | Frequency conversion system |
| NL76814C (US07922777-20110412-C00004.png) * | 1947-09-20 | |||
| NL80423C (US07922777-20110412-C00004.png) * | 1949-02-16 |
-
0
- BE BE493900D patent/BE493900A/xx unknown
- NL NL83682D patent/NL83682C/xx active
-
1950
- 1950-02-13 GB GB3615/50A patent/GB693902A/en not_active Expired
- 1950-02-14 CH CH279129D patent/CH279129A/de unknown
- 1950-02-14 FR FR1012816D patent/FR1012816A/fr not_active Expired
- 1950-02-14 DE DEN503A patent/DE854233C/de not_active Expired
- 1950-02-15 US US148728A patent/US2712597A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2712597A (en) | 1955-07-05 |
| FR1012816A (fr) | 1952-07-17 |
| CH279129A (de) | 1951-11-15 |
| GB693902A (en) | 1953-07-08 |
| NL83682C (US07922777-20110412-C00004.png) | |
| DE854233C (de) | 1952-11-04 |
