GB1412385A - Multi-circuit selection filter for two different frequency ranges - Google Patents
Multi-circuit selection filter for two different frequency rangesInfo
- Publication number
- GB1412385A GB1412385A GB106874A GB106874A GB1412385A GB 1412385 A GB1412385 A GB 1412385A GB 106874 A GB106874 A GB 106874A GB 106874 A GB106874 A GB 106874A GB 1412385 A GB1412385 A GB 1412385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency range
- higher frequency
- diode
- filter
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
-
- 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2303302A DE2303302B1 (de) | 1973-01-24 | 1973-01-24 | Zweikreisiges Selektionsfilter für zwei unterschiedliche Frequenzbereiche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1412385A true GB1412385A (en) | 1975-11-05 |
Family
ID=5869788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB106874A Expired GB1412385A (en) | 1973-01-24 | 1974-01-09 | Multi-circuit selection filter for two different frequency ranges |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE809532A (enrdf_load_stackoverflow) |
| CH (1) | CH558988A (enrdf_load_stackoverflow) |
| DE (1) | DE2303302B1 (enrdf_load_stackoverflow) |
| FR (1) | FR2215000B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1412385A (enrdf_load_stackoverflow) |
| IT (1) | IT1006898B (enrdf_load_stackoverflow) |
| NL (1) | NL7400075A (enrdf_load_stackoverflow) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1791222A1 (de) * | 1967-04-29 | 1971-08-26 | Philips Patentverwaltung | Schaltungsanordnung zum Abstimmen |
| ES359059A1 (es) * | 1968-10-11 | 1970-05-16 | Fagor Electrotecnica Sci | Sintonizador integrado electronicamente para t. v. |
-
1973
- 1973-01-24 DE DE2303302A patent/DE2303302B1/de active Pending
-
1974
- 1974-01-03 NL NL7400075A patent/NL7400075A/xx unknown
- 1974-01-08 BE BE7000481A patent/BE809532A/xx unknown
- 1974-01-09 GB GB106874A patent/GB1412385A/en not_active Expired
- 1974-01-14 IT IT1936874A patent/IT1006898B/it active
- 1974-01-22 CH CH79674A patent/CH558988A/xx not_active IP Right Cessation
- 1974-01-24 FR FR7402381A patent/FR2215000B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2215000A1 (enrdf_load_stackoverflow) | 1974-08-19 |
| NL7400075A (enrdf_load_stackoverflow) | 1974-07-26 |
| BE809532A (nl) | 1974-05-02 |
| IT1006898B (it) | 1976-10-20 |
| FR2215000B1 (enrdf_load_stackoverflow) | 1976-10-08 |
| CH558988A (de) | 1975-02-14 |
| DE2303302B1 (de) | 1974-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |