US3341659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled bandwidth coded voice communication system
Assignee: Unisys Corp
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Filing: 1964-01-24
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Granted: 1967-09-12
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 David M Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:39
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A CODED SIGNAL COMMUNICATION SYSTEM COMPRISING AN ENCODING AND A DECODING SUBSYSTEM, EACH OF SAID SUBSYSTEMS INCLUDING A CODE GENERATOR AND MEANS CONNECTED TO SAID CODE GENERATOR FOR CONTROLLING THE FREQUENCY SPECTRUM OF THE OUTPUT SIGNAL THEREFROM, THE FREQUENCY SPECTRUM CONTROLLING MEANS OF BOTH THE ENCODING AND DECODING SUBSYSTEMS INCLUDES A MODULATOR WITH INPUT AND OUTPUT TERMINALS TO RECEIVE AND DELIVER THE UNCODED AND ENCODED SIGNALS RESPECTIVELY, A CODE GENERATOR HAVING CODED OUTPUT SIGNAL TERMINALS ALSO CONNECTED TO THE INPUT TERMINALS OF SAID MODULATOR, SAID CODE GENERATOR ALSO HAVING OUTPUT SIGNAL FREQUENCY SPECTRUM CONTROL TERMINALS, SAID ENCODER FURTHER INCLUDING A FREQUENCY MONITOR AND THRESHOLD MEANS HAVING FREQUENCY SELECTIVE INPUT MEANS AND THRESHOLD INDICATING OUTPUT MEANS, SAID SELECTIVE INPUT MEANS CONNECTED TO SAID MODULATOR OUTPUT TERMINALS AND SAID THRESHOLD INDICATING OUTPUT MEANS CONNECTED TO THE CONTROL TERMINALS OF SAID CODE GENERATOR WHEREBY THE SPECTRA OF THE CODE GENERATOR OUTPUT MEANS IS CONTROLLABLY RESPONSIVE TO SELECTIVE FREQUENCY COMPONENTS OF SAID MODULATOR ENCODED OUTPUT SIGNAL.
Claim 2
Dependent Claim
162 words
A CODED SIGNAL COMMUNICATION SYSTEM COMPRISING AN ENCODING AND A DECODING SUBSYSTEM, EACH OF SAID SUBSYSTEMS INCLUDING A CODE GENERATOR AND MEANS CONNECTED TO SAID CODE GENERATOR FOR CONTROLLING THE FREQUENCY SPECTRUM OF THE OUTPUT SIGNAL THEREFROM, THE FREQUENCY SPECTRUM CONTROLLING MEANS OF BOTH THE ENCODING AND DECODING SUBSYSTEMS INCLUDES A MODULATOR WITH INPUT AND OUTPUT TERMINALS TO RECEIVE AND DELIVER THE UNCODED AND ENCODED SIGNALS RESPECTIVELY, A CODE GENERATOR HAVING CODED OUTPUT SIGNAL TERMINALS ALSO CONNECTED TO THE INPUT TERMINALS OF SAID MODULATOR, SAID CODE GENERATOR ALSO HAVING OUTPUT SIGNAL FREQUENCY SPECTRUM CONTROL TERMINALS, SAID ENCODER FURTHER INCLUDING A FREQUENCY MONITOR AND THRESHOLD MEANS HAVING FREQUENCY SELECTIVE INPUT MEANS AND THRESHOLD INDICATING OUTPUT MEANS, SAID SELECTIVE INPUT MEANS CONNECTED TO SAID MODULATOR OUTPUT TERMINALS AND SAID THRESHOLD INDICATING OUTPUT MEANS CONNECTED TO THE CONTROL TERMINALS OF SAID CODE GENERATOR WHEREBY THE SPECTRA OF THE CODE GENERATOR OUTPUT MEANS IS CONTROLLABLY RESPONSIVE TO SELECTIVE FREQUENCY COMPONENTS OF SAID MODULATOR ENCODED OUTPUT SIGNAL.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |