Patent US3300580A successfully refreshed from Google Patents.
US3300580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color video signal generating apparatus
Assignee: Nippon Columbia Co Ltd
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Filing: 1963-12-26
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Granted: 1967-01-24
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Takagi Toshihiko
- 👤 Nagahara Shusaku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:20
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/201; H; H04; H04N; H04N23/00; H04N23/10; H04N23/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A COLOR VIDEO SIGNAL GENERATING APPARATUS COMPRISING AN IMAGE PICKUP TUBE PROVIDED WITH A PHOTOELECTROCONVERSION LAYER, MEANS FOR ESSENTIALLY INTERCEPTING IN STRIPES AT LEAST ONE OF COLORS FROM AN OBJECT TO BE REPRODUCED AND PROJECTING THE STRIPE-PATTERN TO SAID PHOTOELECTRO CONVERSION LAYER IN A MANNER SO THAT SAID STRIPE-PATTERN PERIODICALLY INTERSECTS THE SCANNING DIRECTION OF SAID IMAGE PICKUP TUBE, SAID MEANS BEING POSITIONED IN AN OPTICAL PATH, SAID IMAGE PICKUP TUBE PRODUCING A COMPOSITE VIDEO SIGNAL COMPOSED OF A NON-MODULATED VIDEO SIGNAL AND A MODUATED VIDEO SIGNAL, SAID MODULATED VIDEO SIGNAL CORRESPONDING TO SAID INTERCEPTED COLOR, A BAND-PASS FILTER FOR SEPARATING SAID MODULATED VIDEO SIGNAL FROM SAID COMPOSITE VIDEO SIGNAL, A DEMODULATOR CONNECTED TO THE OUTPUT SIDE OF SAID BAND PASS FILTER, MEANS CONNECTED TO THE OUTPUT SIDE OF SAID IMAGE PICKUP TUBE FOR SEPARATING SAID NON-MODULATED VIDEO SIGNAL FROM SAID COMPOSITE VIDEO SIGNAL BY COMBINING SAID MODULATED VIDEO SIGNAL, WHICH HAS NOT YET BEEN DEMODULATED BY SAID DEMODULATOR, WITH SAID COMPOSITE VIDEO SIGNAL, AND MEANS CONNECTED TO THE OUTPUT SIDE OF SAID DEMODULATOR AND THE LAST MENTIONED MEANS FOR OBTAINING COLOR VIDEO SIGNAL FROM SAID DEMODULATED VIDEO SIGNAL AND SAID NON-MODULATED VIDEO SIGNAL.
Claim 2
Dependent Claim
194 words
A COLOR VIDEO SIGNAL GENERATING APPARATUS COMPRISING AN IMAGE PICKUP TUBE PROVIDED WITH A PHOTOELECTROCONVERSION LAYER, MEANS FOR ESSENTIALLY INTERCEPTING IN STRIPES AT LEAST ONE OF COLORS FROM AN OBJECT TO BE REPRODUCED AND PROJECTING THE STRIPE-PATTERN TO SAID PHOTOELECTRO CONVERSION LAYER IN A MANNER SO THAT SAID STRIPE-PATTERN PERIODICALLY INTERSECTS THE SCANNING DIRECTION OF SAID IMAGE PICKUP TUBE, SAID MEANS BEING POSITIONED IN AN OPTICAL PATH, SAID IMAGE PICKUP TUBE PRODUCING A COMPOSITE VIDEO SIGNAL COMPOSED OF A NON-MODULATED VIDEO SIGNAL AND A MODUATED VIDEO SIGNAL, SAID MODULATED VIDEO SIGNAL CORRESPONDING TO SAID INTERCEPTED COLOR, A BAND-PASS FILTER FOR SEPARATING SAID MODULATED VIDEO SIGNAL FROM SAID COMPOSITE VIDEO SIGNAL, A DEMODULATOR CONNECTED TO THE OUTPUT SIDE OF SAID BAND PASS FILTER, MEANS CONNECTED TO THE OUTPUT SIDE OF SAID IMAGE PICKUP TUBE FOR SEPARATING SAID NON-MODULATED VIDEO SIGNAL FROM SAID COMPOSITE VIDEO SIGNAL BY COMBINING SAID MODULATED VIDEO SIGNAL, WHICH HAS NOT YET BEEN DEMODULATED BY SAID DEMODULATOR, WITH SAID COMPOSITE VIDEO SIGNAL, AND MEANS CONNECTED TO THE OUTPUT SIDE OF SAID DEMODULATOR AND THE LAST MENTIONED MEANS FOR OBTAINING COLOR VIDEO SIGNAL FROM SAID DEMODULATED VIDEO SIGNAL AND SAID NON-MODULATED VIDEO SIGNAL.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |