DE2948302C2 - - Google Patents
Info
- Publication number
- DE2948302C2 DE2948302C2 DE2948302A DE2948302A DE2948302C2 DE 2948302 C2 DE2948302 C2 DE 2948302C2 DE 2948302 A DE2948302 A DE 2948302A DE 2948302 A DE2948302 A DE 2948302A DE 2948302 C2 DE2948302 C2 DE 2948302C2
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- tuning
- movable contact
- point
- value
- 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
- 239000004020 conductor Substances 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 12
- 238000010168 coupling process Methods 0.000 claims 12
- 238000005859 coupling reaction Methods 0.000 claims 12
- 230000032683 aging Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/965,218 US4249132A (en) | 1978-11-30 | 1978-11-30 | Continuous tuning arrangement for a multiband television receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2948302A1 DE2948302A1 (de) | 1980-06-12 |
| DE2948302C2 true DE2948302C2 (en, 2012) | 1987-10-15 |
Family
ID=25509650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792948302 Granted DE2948302A1 (de) | 1978-11-30 | 1979-11-30 | Kontinuierlich durchstimmbare abstimmeinrichtung fuer einen mehrbereichsfernsehempfaenger |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4249132A (en, 2012) |
| JP (1) | JPS5939922B2 (en, 2012) |
| CA (1) | CA1137235A (en, 2012) |
| DE (1) | DE2948302A1 (en, 2012) |
| FI (1) | FI70351C (en, 2012) |
| FR (1) | FR2443165A1 (en, 2012) |
| GB (1) | GB2037517B (en, 2012) |
| IT (1) | IT1127646B (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10219959B4 (de) * | 2002-05-03 | 2006-05-24 | Schleifring Und Apparatebau Gmbh | Schleifring oder Schleifbahn zur übertragung elektrischer Signale zwischen zwei gegeneinander beweglichen Einheiten |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7906578A (nl) * | 1979-09-03 | 1981-03-05 | Philips Nv | Afstemschakeling. |
| US4317227A (en) * | 1980-06-09 | 1982-02-23 | Zenith Radio Corporation | Multi-mode automatic channel frequency synthesis system |
| US4410913A (en) * | 1981-10-28 | 1983-10-18 | Rca Corporation | Tuning display for a television receiver |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3492514A (en) * | 1967-04-17 | 1970-01-27 | Motorola Inc | Voltage variable capacitance range extender |
| DE1591364B1 (de) * | 1967-04-29 | 1970-08-20 | Philips Patentverwaltung | Schaltungsanordnung zum Abstimmen |
| US3646450A (en) * | 1969-08-13 | 1972-02-29 | Zenith Radio Corp | Voltage-controlled plural-band tuner for a wave signal receiver |
| US3750030A (en) * | 1970-12-29 | 1973-07-31 | Gen Electric | Frequency switching circuitry for varactor tuned radio receivers |
| US3906373A (en) * | 1973-02-12 | 1975-09-16 | Zenith Radio Corp | Varactor tuning system |
| US3878466A (en) * | 1973-02-12 | 1975-04-15 | Zenith Radio Corp | Varactor tuning system |
| US3962643A (en) * | 1974-08-05 | 1976-06-08 | Zenith Radio Corporation | Abrupt junction varactor diode television tuner |
-
1978
- 1978-11-30 US US05/965,218 patent/US4249132A/en not_active Expired - Lifetime
-
1979
- 1979-11-23 FI FI793687A patent/FI70351C/fi not_active IP Right Cessation
- 1979-11-28 IT IT27655/79A patent/IT1127646B/it active
- 1979-11-28 CA CA000340811A patent/CA1137235A/en not_active Expired
- 1979-11-29 GB GB7941269A patent/GB2037517B/en not_active Expired
- 1979-11-29 JP JP54155496A patent/JPS5939922B2/ja not_active Expired
- 1979-11-29 FR FR7929404A patent/FR2443165A1/fr active Granted
- 1979-11-30 DE DE19792948302 patent/DE2948302A1/de active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10219959B4 (de) * | 2002-05-03 | 2006-05-24 | Schleifring Und Apparatebau Gmbh | Schleifring oder Schleifbahn zur übertragung elektrischer Signale zwischen zwei gegeneinander beweglichen Einheiten |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5578619A (en) | 1980-06-13 |
| GB2037517B (en) | 1983-02-09 |
| IT7927655A0 (it) | 1979-11-28 |
| CA1137235A (en) | 1982-12-07 |
| FI70351C (fi) | 1986-09-15 |
| DE2948302A1 (de) | 1980-06-12 |
| IT1127646B (it) | 1986-05-21 |
| US4249132A (en) | 1981-02-03 |
| FR2443165A1 (fr) | 1980-06-27 |
| FR2443165B1 (en, 2012) | 1984-01-20 |
| JPS5939922B2 (ja) | 1984-09-27 |
| FI793687A7 (fi) | 1980-05-31 |
| FI70351B (fi) | 1986-02-28 |
| GB2037517A (en) | 1980-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2412689C3 (de) | Schaltungsanordnung zur Abstimmung und Bereichs- bzw. Bandumschaltung eines HF-Schwingungskreises | |
| DE2714244A1 (de) | Abstimmvorrichtung fuer einen fernsehempfaenger | |
| DE1297702B (de) | Automatische Abstimmeinrichtung | |
| DE2948363C2 (en, 2012) | ||
| EP0623992B1 (de) | Oszillator | |
| DE2836288C2 (de) | Kombi-Tuner | |
| DE19734265A1 (de) | Fernsehtuner | |
| DE2005369C3 (de) | Schaltung zur digitalen Abstimmung von Empfängern | |
| DE2948302C2 (en, 2012) | ||
| DE2613770A1 (de) | Einstellbares potentiometer | |
| DE1766639B1 (de) | Oszillatorschaltung mit einem zwei steuerelektroden auf weisenden transistor | |
| DE1959592C3 (de) | Tuner | |
| EP0746092A1 (de) | Oszillator | |
| DE2830668C2 (en, 2012) | ||
| DE2614407C3 (de) | Elektronische Kanalwähleinrichtung | |
| DE2251376C3 (de) | Kanalwähler | |
| DE1591766B1 (de) | Abstimmvorrichtung fuer hochfrequente elektrische schwingungen | |
| DE3144390A1 (de) | Schwingkreisschaltung | |
| DE3144242C2 (en, 2012) | ||
| DE1909974B2 (de) | Fernsehempfänger für UHF- und VHF-Empfang | |
| DE3046718C2 (en, 2012) | ||
| DE2107714A1 (de) | Schaltungsanordnung zum Umschalten der Resonanzfrequenzen elektrischer Schwingkreise | |
| DE2165163A1 (de) | Kanalwähleinrichtung | |
| DE2027034B2 (de) | Abstimmeinrichtung | |
| DE2948364A1 (de) | Anordnung zur kontinuierlichen abstimmung eines mehrbereichsfernsehempfaengers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: RCA LICENSING CORP., PRINCETON, N.J., US |
|
| 8339 | Ceased/non-payment of the annual fee |