US3073896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video interchange by digital band and scan conversions
Assignee: AT&T Inc
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Filing: 1960-05-31
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Granted: 1963-01-15
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Dennis B James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:23
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N7/122; H04N19/00; H04N19/50; H04N19/587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
APPARATUS FOR PREPARING A WAVE GENERATED AT A FIRST SITUS IN A FIRST FORMAT FOR TRANSMISSION TO A SECOND SITUS OVER A CHANNEL OF LIMITED BANDWIDTH, WHICH COMPRISES MEANS FOR SAMPLING THE WAVE TO PRODUCE CONSECUTIVE SAMPLES THAT ARE UNIFORMLY DISTRIBUTED IN TIME, MEANS FOR SELECTING NON-CONSECUTIVE GROUPS OF SAID SAMPLES, MEANS FOR SELECTING NON-CONSECUTIVE SUBGROUPS OF SAID SELECTED GROUPS, STORAGE MEANS, MEANS FOR CONSECUTIVELY ENTERING THE SAMPLES OF THE SELECTED SUBGROUPS INTO ADJACENT STORAGE POSITIONS OF SAID STORAGE MEANS, AND MEANS FOR EXTRACTING THE SAMPLES STORED OVER A GROUP TIME INTERVAL FROM SAID STORAGE MEANS AT A UNIFORM RATE CAUSING THEM TO BE DISTRIBUTED IN TIME OVER LESS THAN THE INTERVAL EXTENDING FROM THE TIME OF OCCURENCE OF THE FIRST SAMPLE OF EACH SELECTED GROUP TO THE TIME OF OCCURENCE OF THE FIRST SAMPLE OF THE IMMEDIATELY SUCCEEDING SELECTED GROUP.
Claim 2
Dependent Claim
141 words
APPARATUS FOR PREPARING A WAVE GENERATED AT A FIRST SITUS IN A FIRST FORMAT FOR TRANSMISSION TO A SECOND SITUS OVER A CHANNEL OF LIMITED BANDWIDTH, WHICH COMPRISES MEANS FOR SAMPLING THE WAVE TO PRODUCE CONSECUTIVE SAMPLES THAT ARE UNIFORMLY DISTRIBUTED IN TIME, MEANS FOR SELECTING NON-CONSECUTIVE GROUPS OF SAID SAMPLES, MEANS FOR SELECTING NON-CONSECUTIVE SUBGROUPS OF SAID SELECTED GROUPS, STORAGE MEANS, MEANS FOR CONSECUTIVELY ENTERING THE SAMPLES OF THE SELECTED SUBGROUPS INTO ADJACENT STORAGE POSITIONS OF SAID STORAGE MEANS, AND MEANS FOR EXTRACTING THE SAMPLES STORED OVER A GROUP TIME INTERVAL FROM SAID STORAGE MEANS AT A UNIFORM RATE CAUSING THEM TO BE DISTRIBUTED IN TIME OVER LESS THAN THE INTERVAL EXTENDING FROM THE TIME OF OCCURENCE OF THE FIRST SAMPLE OF EACH SELECTED GROUP TO THE TIME OF OCCURENCE OF THE FIRST SAMPLE OF THE IMMEDIATELY SUCCEEDING SELECTED GROUP.
References Cited (Backward Citations)
US2219021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |