Patent US2607858A successfully refreshed from Google Patents.
US3136847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Narrow band television with interlace conversion
Assignee: AT&T Inc
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Filing: 1962-07-20
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Granted: 1964-06-09
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Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Earl F Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N7/122; H04N7/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
TELEVISION APPARATUS WHICH COMPRISES MEANS AT A TRANSMITTER STATION AND OPERATIVE AT A FRAME REPETITION RATE FOR STORING CONSECUTIVE STATIC IMAGES OF A FIELD OF VIEW, MEANS, OPERATIVE AT A FIELD REPETITION RATE FOR DEVELOPING, FROM EACH OF SAID IMAGES, CONSECUTIVE FIELD SIGNALS THAT ARE SEVERALLY REPRESENTATIVE OF AT LEAST TWO HORIZONTALLY INTERLACED FIELDS OF SAID IMAGE, MEANS FOR TRANSMITTING SAID FIELD SIGNALS TO A RECEIVER STATION AND, AT SAID RECEIVER STATION, MEANS FOR STORING EACH RECEIVED FIELD SIGNAL FOR AN INTEGRAL NUMBER OF FIELD PERIODS, MEANS FOR COMBINING EACH NEWLY RECEIVED FIELD SIGNAL WITH A FIELD SIGNAL EARLIER RECEIVED AND STORED, TO DEVELOP A COMPOSITE FIELD SIGNAL, SAID COMBINING MEANS BEING PROPORTIONED TO PRESERVE THE HORIZONTAL INTERLACE AMONG SAID FIELDS,
Claim 2
Dependent Claim
121 words
TELEVISION APPARATUS WHICH COMPRISES MEANS AT A TRANSMITTER STATION AND OPERATIVE AT A FRAME REPETITION RATE FOR STORING CONSECUTIVE STATIC IMAGES OF A FIELD OF VIEW, MEANS, OPERATIVE AT A FIELD REPETITION RATE FOR DEVELOPING, FROM EACH OF SAID IMAGES, CONSECUTIVE FIELD SIGNALS THAT ARE SEVERALLY REPRESENTATIVE OF AT LEAST TWO HORIZONTALLY INTERLACED FIELDS OF SAID IMAGE, MEANS FOR TRANSMITTING SAID FIELD SIGNALS TO A RECEIVER STATION AND, AT SAID RECEIVER STATION, MEANS FOR STORING EACH RECEIVED FIELD SIGNAL FOR AN INTEGRAL NUMBER OF FIELD PERIODS, MEANS FOR COMBINING EACH NEWLY RECEIVED FIELD SIGNAL WITH A FIELD SIGNAL EARLIER RECEIVED AND STORED, TO DEVELOP A COMPOSITE FIELD SIGNAL, SAID COMBINING MEANS BEING PROPORTIONED TO PRESERVE THE HORIZONTAL INTERLACE AMONG SAID FIELDS,
References Cited (Backward Citations)
US2939909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |