BE428524A - - Google Patents
Info
- Publication number
- BE428524A BE428524A BE428524DA BE428524A BE 428524 A BE428524 A BE 428524A BE 428524D A BE428524D A BE 428524DA BE 428524 A BE428524 A BE 428524A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0153—Electrical filters; Controlling thereof
- H03H7/0161—Bandpass filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2210/00—Indexing scheme relating to details of tunable filters
- H03H2210/02—Variable filter component
- H03H2210/025—Capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2210/00—Indexing scheme relating to details of tunable filters
- H03H2210/03—Type of tuning
- H03H2210/036—Stepwise
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202651X | 1937-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428524A true BE428524A (en:Method) | 1938-07-30 |
Family
ID=5772538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428524D BE428524A (en:Method) | 1937-06-11 | 1938-06-08 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE428524A (en:Method) |
| CH (1) | CH202651A (en:Method) |
| FR (1) | FR839011A (en:Method) |
-
1938
- 1938-06-07 CH CH202651D patent/CH202651A/de unknown
- 1938-06-08 FR FR839011D patent/FR839011A/fr not_active Expired
- 1938-06-08 BE BE428524D patent/BE428524A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH202651A (de) | 1939-01-31 |
| FR839011A (fr) | 1939-03-22 |