US3196371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay distortion compensator
Assignee: AT&T Inc
•
Filing: 1961-05-01
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Granted: 1965-07-20
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Georges R P Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:56
CPC Classifications
H; H01; H01P; H01P9/00; H01P9/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN COMBINATION, A LENGTH OF TRANSMISSION PATH HAVING A MONOTONICALLY VARYING PHASE VERSUS FREQUENCY CHARACTERISTIC OVER A BAND OF OPERATING FREQUENCIES, MEANS CONNECTED TO SAID PATH FOR EQUALIZING THE FIRST ORDER DELAY DISTORTION PRODUCED BY SAID PATH, SAID MEANS COMPRISING A NETWORK HAVING A STOP-BAND HIGHER THAN SAID BAND OF OPERATING FREQUENCIES AND A PHASE VERSUS FREQUENCY CHARACTERISTIC WHICH COMPENSATES THAT OF THE TRANSMISSION PATH RESULTING IN A COMBINED PHASE VERSUS FREQUENCY CHARACTERISTIC OF SAID PATH AND SAID NETWORK HAVING AN INFLECTION POINT AT A GIVEN FREQUENCY WITHIN SAID BAND OF FREQUENCIES THEREBY PRODUCING A SUBSTANTIALLY LINEAR PHASE VERSUS FREQUENCY CHARACTERISTIC OVER A RANGE OF FREQUENCIES CENTERED ABOUT SAID GIVEN FREQUENCY.
Claim 2
Dependent Claim
111 words
IN COMBINATION, A LENGTH OF TRANSMISSION PATH HAVING A MONOTONICALLY VARYING PHASE VERSUS FREQUENCY CHARACTERISTIC OVER A BAND OF OPERATING FREQUENCIES, MEANS CONNECTED TO SAID PATH FOR EQUALIZING THE FIRST ORDER DELAY DISTORTION PRODUCED BY SAID PATH, SAID MEANS COMPRISING A NETWORK HAVING A STOP-BAND HIGHER THAN SAID BAND OF OPERATING FREQUENCIES AND A PHASE VERSUS FREQUENCY CHARACTERISTIC WHICH COMPENSATES THAT OF THE TRANSMISSION PATH RESULTING IN A COMBINED PHASE VERSUS FREQUENCY CHARACTERISTIC OF SAID PATH AND SAID NETWORK HAVING AN INFLECTION POINT AT A GIVEN FREQUENCY WITHIN SAID BAND OF FREQUENCIES THEREBY PRODUCING A SUBSTANTIALLY LINEAR PHASE VERSUS FREQUENCY CHARACTERISTIC OVER A RANGE OF FREQUENCIES CENTERED ABOUT SAID GIVEN FREQUENCY.
References Cited (Backward Citations)
US2445895A
Cited
US2445896A
Cited
US2626990A
Cited
US2633492A
Cited
US2639326A
Cited
US2816270A
Cited
US2717956A
Cited
US2859413A
Cited
US2863127A
Cited
US2863126A
Cited
US2760164A
Cited
US2929032A
Cited
US2892126A
Cited
US2951996A
Cited
US2978657A
Cited
US2991431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |