IT1127646B - Sistema per la sintonizzazione continua di un recevitore televisiva multibanda - Google Patents
Sistema per la sintonizzazione continua di un recevitore televisiva multibandaInfo
- Publication number
- IT1127646B IT1127646B IT27655/79A IT2765579A IT1127646B IT 1127646 B IT1127646 B IT 1127646B IT 27655/79 A IT27655/79 A IT 27655/79A IT 2765579 A IT2765579 A IT 2765579A IT 1127646 B IT1127646 B IT 1127646B
- Authority
- IT
- Italy
- Prior art keywords
- television receiver
- tuning system
- continuous tuning
- multiband
- multiband television
- Prior art date
Links
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
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 |
|---|---|
| IT7927655A0 IT7927655A0 (it) | 1979-11-28 |
| IT1127646B true IT1127646B (it) | 1986-05-21 |
Family
ID=25509650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT27655/79A IT1127646B (it) | 1978-11-30 | 1979-11-28 | Sistema per la sintonizzazione continua di un recevitore televisiva multibanda |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4249132A (it) |
| JP (1) | JPS5939922B2 (it) |
| CA (1) | CA1137235A (it) |
| DE (1) | DE2948302A1 (it) |
| FI (1) | FI70351C (it) |
| FR (1) | FR2443165A1 (it) |
| GB (1) | GB2037517B (it) |
| IT (1) | IT1127646B (it) |
Families Citing this family (4)
| 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 |
| DE10219959B4 (de) * | 2002-05-03 | 2006-05-24 | Schleifring Und Apparatebau Gmbh | Schleifring oder Schleifbahn zur übertragung elektrischer Signale zwischen zwei gegeneinander beweglichen Einheiten |
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 CA CA000340811A patent/CA1137235A/en not_active Expired
- 1979-11-28 IT IT27655/79A patent/IT1127646B/it active
- 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
Also Published As
| Publication number | Publication date |
|---|---|
| FR2443165A1 (fr) | 1980-06-27 |
| JPS5578619A (en) | 1980-06-13 |
| GB2037517B (en) | 1983-02-09 |
| CA1137235A (en) | 1982-12-07 |
| DE2948302C2 (it) | 1987-10-15 |
| DE2948302A1 (de) | 1980-06-12 |
| FR2443165B1 (it) | 1984-01-20 |
| FI70351C (fi) | 1986-09-15 |
| FI70351B (fi) | 1986-02-28 |
| FI793687A (fi) | 1980-05-31 |
| IT7927655A0 (it) | 1979-11-28 |
| US4249132A (en) | 1981-02-03 |
| GB2037517A (en) | 1980-07-09 |
| JPS5939922B2 (ja) | 1984-09-27 |
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