US3084327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency frequency modulation system for television and speech signals
Assignee: AT&T Inc
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Filing: 1959-05-11
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Granted: 1963-04-02
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Cassius C Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:26
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04B; H04B14/00; H04B14/002; H04B14/006; H04N7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A SYSTEM FOR TRANSMITTING BASEBAND SIGNALS, MEANS FOR PROVIDING IN RESPONSE TO SAID BASEBAND SIGNALS A TRAIN OF RADIO FREQUENCY PULSES, THE CENTER FREQUENCY OF WHICH IS FREQUENCY MODULATED BY SAID BASEBAND SIGNALS, MEANS FOR LIMITING THE BANDWIDTH OF SAID MODULATED RADIO FREQUENCY PULSES TO A VALUE OF THE ORDER OF BUT GREATER THAN TWICE THE WIDTH OF THE BAND OCCUPIED BY SAID BASEBAND SIGNALS AND RELATED TO THE MAXIMUM RATE OF CHANGE OF FREQUENCY IN THE INTERPULSE INTERVAL, AND MEANS FOR RADIATING THE RESULTANT SIGNALS.
Claim 2
Dependent Claim
87 words
IN A SYSTEM FOR TRANSMITTING BASEBAND SIGNALS, MEANS FOR PROVIDING IN RESPONSE TO SAID BASEBAND SIGNALS A TRAIN OF RADIO FREQUENCY PULSES, THE CENTER FREQUENCY OF WHICH IS FREQUENCY MODULATED BY SAID BASEBAND SIGNALS, MEANS FOR LIMITING THE BANDWIDTH OF SAID MODULATED RADIO FREQUENCY PULSES TO A VALUE OF THE ORDER OF BUT GREATER THAN TWICE THE WIDTH OF THE BAND OCCUPIED BY SAID BASEBAND SIGNALS AND RELATED TO THE MAXIMUM RATE OF CHANGE OF FREQUENCY IN THE INTERPULSE INTERVAL, AND MEANS FOR RADIATING THE RESULTANT SIGNALS.
References Cited (Backward Citations)
US2361437A
Cited
US2383359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |