US3153171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutralization of orthicon image section from stray line scanning fields
Assignee: BAE Systems Electronics Ltd
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Filing: 1961-06-21
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Granted: 1964-10-13
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Expires: 1981-06-21
Abstract
No abstract record available.
Inventors
- 👤 Poole Burnet Minifie
- 👤 Cox Raymond Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:36
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34; H01J31/36; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A TELEVISION CAMERA TUBE ARRANGEMENT INCLUDING A CATHODE RAY TUBE OF THE KIND IN WHICH A TARGET STRUCTURE IS POSITIONED BETWEEN AN IMAGE SECTION OF THE TUBE AND A SCANNING SECTION THEREOF, SAID IMAGE SECTION INCLUDING A PHOTO-ELECTRIC CATHODE BY MEANS OF WHICH AN ELECTRICAL CHARGE IMAGE OF A SUBJECT OF TRANSMISSION IS PRODUCED ON THE TARGET STRUCTURE AND SAID SCANNING SECTION INCLUDING AN ELECTRON GUN AND ASSOCIATED ELECTRO-MAGNETIC DEFLECTION SYSTEM BY MEANS OF WHICH SAID ELECTRICAL CHARGE IMAGE IS SCANNED BY A CATHODE RAY TO DEVELOP PICTURE SIGNALS THEREFROM, AT LEAST ONE CONDUCTIVE LOOP POSITIONED OVER THE IMAGE SECTION OF THE TUBE AND HAVING TWO MAIN PORTIONS OF ITS LENGTH RUNNING AT LEAST APPROXIMATELY PARALLEL TO THE TUBE AXIS ON OPPOSITE SIDES THEREOF AND JOINED AT THE SAME END BY A THIRD PORTION, AND MEANS FOR FEEDING SAID LOOP WITH A SCANNING LINE FREQUENCY CURRENT WAVE SUBSTANTIALLY PROPORTIONAL TO THE CURRENT WAVE FED TO THE LINE SCANNING COILS ASSOCIATED WITH THE SCANNING
Claim 2
Dependent Claim
163 words
A TELEVISION CAMERA TUBE ARRANGEMENT INCLUDING A CATHODE RAY TUBE OF THE KIND IN WHICH A TARGET STRUCTURE IS POSITIONED BETWEEN AN IMAGE SECTION OF THE TUBE AND A SCANNING SECTION THEREOF, SAID IMAGE SECTION INCLUDING A PHOTO-ELECTRIC CATHODE BY MEANS OF WHICH AN ELECTRICAL CHARGE IMAGE OF A SUBJECT OF TRANSMISSION IS PRODUCED ON THE TARGET STRUCTURE AND SAID SCANNING SECTION INCLUDING AN ELECTRON GUN AND ASSOCIATED ELECTRO-MAGNETIC DEFLECTION SYSTEM BY MEANS OF WHICH SAID ELECTRICAL CHARGE IMAGE IS SCANNED BY A CATHODE RAY TO DEVELOP PICTURE SIGNALS THEREFROM, AT LEAST ONE CONDUCTIVE LOOP POSITIONED OVER THE IMAGE SECTION OF THE TUBE AND HAVING TWO MAIN PORTIONS OF ITS LENGTH RUNNING AT LEAST APPROXIMATELY PARALLEL TO THE TUBE AXIS ON OPPOSITE SIDES THEREOF AND JOINED AT THE SAME END BY A THIRD PORTION, AND MEANS FOR FEEDING SAID LOOP WITH A SCANNING LINE FREQUENCY CURRENT WAVE SUBSTANTIALLY PROPORTIONAL TO THE CURRENT WAVE FED TO THE LINE SCANNING COILS ASSOCIATED WITH THE SCANNING
References Cited (Backward Citations)
US2517807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |