US3205496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal transmitting and receiving system
Assignee: AT&T Inc
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Filing: 1962-04-06
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Granted: 1965-09-07
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Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 Miedema Hotze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/284; G01S13/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SYSTEM FOR TRANSMITTING AND RECEIVING SIGNALS WHICH COMPRISES MEANS FOR GENERATING A FIRST SET OF SIGNALS EACH HAVING A RELATIVELY LONG DURATION T AND EACH HAVING A FREQUENCY SPECTRUM THAT COMPRISES A PLURALITY OF RELATIVELY NARROW FREQUENCY SUBSPECTRA IN WHICH THE SPECING IN FREQUENCY $F BETWEEN ADJACENT SUBSPECTRA IS LARGE IN COMPARISON WITH THE WIDTH 1/T OF EACH OF SAID SUBSPECTRA, MEANS FOR TRANSMITTING SAID FIRST SET OF SIGNALS, MEANS FOR RECEIVING SAID TRANSMITTED FIRST SET OF SIGNALS, AND MEANS RESPONSIVE TO SAID RECEIVE FIRST SET OF SIGNALS FOR COMPRESSING THE SPACING IN FREQUENCY BETWEEN ADJACET SUBSPECTRA OF EACH OF SAID FIRST SET OF SIGNALS TO DEVELOP A SECOND SET OF SIGNALS EACH HAVING A SINGLE, RELATIVELY WIDE FREQUENCY SPECTRUM.
Claim 2
Independent Claim
121 words
A SYSTEM FOR TRANSMITTING AND RECEIVING SIGNALS WHICH COMPRISES MEANS FOR GENERATING A FIRST SET OF SIGNALS EACH HAVING A RELATIVELY LONG DURATION T AND EACH HAVING A FREQUENCY SPECTRUM THAT COMPRISES A PLURALITY OF RELATIVELY NARROW FREQUENCY SUBSPECTRA IN WHICH THE SPECING IN FREQUENCY $F BETWEEN ADJACENT SUBSPECTRA IS LARGE IN COMPARISON WITH THE WIDTH 1/T OF EACH OF SAID SUBSPECTRA, MEANS FOR TRANSMITTING SAID FIRST SET OF SIGNALS, MEANS FOR RECEIVING SAID TRANSMITTED FIRST SET OF SIGNALS, AND MEANS RESPONSIVE TO SAID RECEIVE FIRST SET OF SIGNALS FOR COMPRESSING THE SPACING IN FREQUENCY BETWEEN ADJACET SUBSPECTRA OF EACH OF SAID FIRST SET OF SIGNALS TO DEVELOP A SECOND SET OF SIGNALS EACH HAVING A SINGLE, RELATIVELY WIDE FREQUENCY SPECTRUM.
References Cited (Backward Citations)
US2624876A
Cited
US2834956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |