US3097348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secure communication system
Assignee: Individual
•
Filing: 1959-08-20
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Granted: 1963-07-09
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Paul E Fiske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:59
CPC Classifications
H; H04; H04L; H04L9/00; H04L9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A SECURE COMMUNICATION SYSTEM COMPRISING PULSE GENERATING MEANS FOR GENERATING AT LEAST TWO SETS OF A PLURALITY OF PAIRS OF PULSES, THE PAIRS OF PULSES OF EACH OF SAID SETS HAVING A DIFFERENT PREDETERMINED TIMED RELATIONSHIP WITH RESPECT TO EACH OTHER, EACH OF SAID PLURALITY OF PAIRS OF PULSES ADAPTED TO MODULATE A TRANSMITTER CARRIER SIGNAL, A DECODER COMPRISING A PLURALITY OF SELECTING CIRCUITS, EACH OF SAID SELECTING CIRCUITS RESPONSIVE TO A DIFFERENT ONE OF SAID SETS OF PULSES WHEN DETECTED BY SUITABLE RECEIVING MEANS, PULSE SHAPING MEANS CONNECTED TO THE OUTPUTS OF SAID SELECTING CIRCUITS, AND INDICATING MEANS CONNECTED TO THE OUTPUT OF SAID PULSE SHAPING MEANS.
Claim 2
Dependent Claim
108 words
A SECURE COMMUNICATION SYSTEM COMPRISING PULSE GENERATING MEANS FOR GENERATING AT LEAST TWO SETS OF A PLURALITY OF PAIRS OF PULSES, THE PAIRS OF PULSES OF EACH OF SAID SETS HAVING A DIFFERENT PREDETERMINED TIMED RELATIONSHIP WITH RESPECT TO EACH OTHER, EACH OF SAID PLURALITY OF PAIRS OF PULSES ADAPTED TO MODULATE A TRANSMITTER CARRIER SIGNAL, A DECODER COMPRISING A PLURALITY OF SELECTING CIRCUITS, EACH OF SAID SELECTING CIRCUITS RESPONSIVE TO A DIFFERENT ONE OF SAID SETS OF PULSES WHEN DETECTED BY SUITABLE RECEIVING MEANS, PULSE SHAPING MEANS CONNECTED TO THE OUTPUTS OF SAID SELECTING CIRCUITS, AND INDICATING MEANS CONNECTED TO THE OUTPUT OF SAID PULSE SHAPING MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |