Patent US4424243A successfully refreshed from Google Patents.
Patent US3355554A successfully refreshed from Google Patents.
US3355554A
Expired / Lapsed
US
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High speed split channel time compressor
Assignee: AT&T Inc
•
Filing: 1964-07-22
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Granted: 1967-11-28
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Peter S Fuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:28
CPC Classifications
G; G10; G10L; G10L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN COMBINATION: PLURAL DELTIC CIRCUITS FOR PRODUCING AT THE OUTPUT THEREOF A TIME COMPRESSED VERSION OF SIGNALS APPLIED TO THE INPUT THEREOF, A SOURCE OF INPUT SIGNALS, MEANS COUPLING SAID SIGNALS TO SAID DELTIC CIRCUITS WITH DIFFERENT AMOUNTS OF DELAY, MEANS IN SAID DELTIC CIRCUITS SIMULTANEOUSLY GATING SIGNALS FROM SAID COUPLING MEANS INTO ALL OF SAID DELTIC CIRCUITS, AND MENS COMBINING THE OUTPUTS OF SAID DELTIC CIRCUITS.
Claim 2
Dependent Claim
67 words
IN COMBINATION: PLURAL DELTIC CIRCUITS FOR PRODUCING AT THE OUTPUT THEREOF A TIME COMPRESSED VERSION OF SIGNALS APPLIED TO THE INPUT THEREOF, A SOURCE OF INPUT SIGNALS, MEANS COUPLING SAID SIGNALS TO SAID DELTIC CIRCUITS WITH DIFFERENT AMOUNTS OF DELAY, MEANS IN SAID DELTIC CIRCUITS SIMULTANEOUSLY GATING SIGNALS FROM SAID COUPLING MEANS INTO ALL OF SAID DELTIC CIRCUITS, AND MENS COMBINING THE OUTPUTS OF SAID DELTIC CIRCUITS.
References Cited (Backward Citations)
US3202764A
Cited
US2927962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |