US3253240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine tuning device for television receiver
Assignee: General Electric Co
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Filing: 1963-10-30
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Granted: 1966-05-24
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Roussin
- 👤 Albert P Weiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/06; H03J1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A TELEVISION RECEIVER HAVING A LOCAL OSCILLATOR TO BE FINELY TUNED AUTOMATICALLY IN CORRESPONDENCE WITH ADJUSTMENT OF THE RECEIVER FOR RECEPTION OF GIVEN ONE OF A PLURALITY OF CHANNELS OF FINE TUNING DEVICE COMPRISING: (A) A FIRST CAPACITIVE ELEMENT, (B) A PLURALITY OF SECOND CAPACTIVE ELEMENTS, EACH OF SAID SECOND CAPACITIVE ELEMENTS CORESPONDING ONE OF GIVEN ONE OF THE CHANNELS, (C) SELECTOR MEANS FOR ALIGNING A CORRESPONDING ONE OF SAID SECOND CAPACITIVE ELEMENTS WITH SAID FIRST CAPACITIVE ELEMENT TO PROVIDE AN ELECTRICAL CAPACITANCE THEREBETWEEN WHEN ADJUSTING THE RECEIVER FOR RECEPTION OF A GIVEN CHANNEL, SAID ELECTRICAL CAPACITANCE COMPLETING THE CIRCUIT OF THE LOCAL OSCILLATOR, (D) FINE TUNING CONTROL MEANS FOR INDIVIDUALLY ADJUSTING IN, SEQUENCE, EACH OF SAID SECOND CAPACITIVE ELEMENTS WHEN ALIGNED WITH SAID FIRST CAPACITIVE ELEMENT TO VARY THE PHYSICAL DISPLACEMENT THEREBETWEEN FOR ESTABLISHING THE VALUE OF ELECTRICL CAPACITANCE REQUIRED FOR FINELY TUNING THE LOCAL OSCILLATOR FOR RECEPTION OF THE CORRESPONDING CHANNEL, (E) WHEREBY IN OPERATION OF SAID SELECTOR MEANS TO ADJUST THE RECEIVER FOR SELECTION OF A GIVEN CHANNEL, THE VALUE OF ELECTRICAL CAPACITANCE REQUIRED FOR FINE TUNING OF THE LOCAL OSCILLATOR IS PROVIDED AUTOMATICALLY.
Claim 2
Dependent Claim
188 words
IN A TELEVISION RECEIVER HAVING A LOCAL OSCILLATOR TO BE FINELY TUNED AUTOMATICALLY IN CORRESPONDENCE WITH ADJUSTMENT OF THE RECEIVER FOR RECEPTION OF GIVEN ONE OF A PLURALITY OF CHANNELS OF FINE TUNING DEVICE COMPRISING: (A) A FIRST CAPACITIVE ELEMENT, (B) A PLURALITY OF SECOND CAPACTIVE ELEMENTS, EACH OF SAID SECOND CAPACITIVE ELEMENTS CORESPONDING ONE OF GIVEN ONE OF THE CHANNELS, (C) SELECTOR MEANS FOR ALIGNING A CORRESPONDING ONE OF SAID SECOND CAPACITIVE ELEMENTS WITH SAID FIRST CAPACITIVE ELEMENT TO PROVIDE AN ELECTRICAL CAPACITANCE THEREBETWEEN WHEN ADJUSTING THE RECEIVER FOR RECEPTION OF A GIVEN CHANNEL, SAID ELECTRICAL CAPACITANCE COMPLETING THE CIRCUIT OF THE LOCAL OSCILLATOR, (D) FINE TUNING CONTROL MEANS FOR INDIVIDUALLY ADJUSTING IN, SEQUENCE, EACH OF SAID SECOND CAPACITIVE ELEMENTS WHEN ALIGNED WITH SAID FIRST CAPACITIVE ELEMENT TO VARY THE PHYSICAL DISPLACEMENT THEREBETWEEN FOR ESTABLISHING THE VALUE OF ELECTRICL CAPACITANCE REQUIRED FOR FINELY TUNING THE LOCAL OSCILLATOR FOR RECEPTION OF THE CORRESPONDING CHANNEL, (E) WHEREBY IN OPERATION OF SAID SELECTOR MEANS TO ADJUST THE RECEIVER FOR SELECTION OF A GIVEN CHANNEL, THE VALUE OF ELECTRICAL CAPACITANCE REQUIRED FOR FINE TUNING OF THE LOCAL OSCILLATOR IS PROVIDED AUTOMATICALLY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |