US3145340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic error control arrangement for pulse transmission
Assignee: International Standard Electric Corp
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Filing: 1962-04-10
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Granted: 1964-08-18
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Janson Knut Stig Torbjorn
- 👤 Jeppsson Martin Vilhelm Ivan
- 👤 Silversjo Kurt Elof Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:51
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN AN INTELLIGENCE TRANSMISSION SYSTEM FOR TRANSMITTING A PLURALITY OF DATA SIGNAL ELEMENTS FROM A SENDER TERMINAL TO A RECEIVER TERMINAL AND FOR ERROR-CHECKING THE SAID TRANSMISSION, MEANS IN THE SENDER TERMINAL FOR RECEIVING, MODULATING AND FREQUENCY-SHIFTING SAID DATA SIGNAL ELEMENTS AND FOR TRANSMITTING, AT A CONSTANT AMPLITUDE, SAID RESULTANT SIGNAL ELEMENTS TO SAID RECEIVER TERMINALS, MEANS IN SAID RECEIVER TERMINAL, FOR FREQUENCYSHIFTING THE SAID TRANSMITTED SIGNAL ELEMENTS, DETECTING THE AMPLITUDE OF SAID TRANSMITTED AND FREQUENCY-SHIFTED SIGNAL ELEMENTS PRIOR TO DEMODULATION, AND FOR INDICATING A TRANSMISSION ERROR RESPONSIVE TO THE AMPLITUDE OF THE LASTSAID SIGNAL ELEMENT LYING OUTSIDE OF PREDETERMINED AMPLITUDE LIMITS, THE SAID MEANS FOR DETECTING INCLUDING SIGNAL INTEGRATING MEANS HAVING A PERIOD OF INTEGRATION NOT GREATER THAN THE DURATION OF ONE SIGNAL ELEMENT.
Claim 2
Dependent Claim
125 words
IN AN INTELLIGENCE TRANSMISSION SYSTEM FOR TRANSMITTING A PLURALITY OF DATA SIGNAL ELEMENTS FROM A SENDER TERMINAL TO A RECEIVER TERMINAL AND FOR ERROR-CHECKING THE SAID TRANSMISSION, MEANS IN THE SENDER TERMINAL FOR RECEIVING, MODULATING AND FREQUENCY-SHIFTING SAID DATA SIGNAL ELEMENTS AND FOR TRANSMITTING, AT A CONSTANT AMPLITUDE, SAID RESULTANT SIGNAL ELEMENTS TO SAID RECEIVER TERMINALS, MEANS IN SAID RECEIVER TERMINAL, FOR FREQUENCYSHIFTING THE SAID TRANSMITTED SIGNAL ELEMENTS, DETECTING THE AMPLITUDE OF SAID TRANSMITTED AND FREQUENCY-SHIFTED SIGNAL ELEMENTS PRIOR TO DEMODULATION, AND FOR INDICATING A TRANSMISSION ERROR RESPONSIVE TO THE AMPLITUDE OF THE LASTSAID SIGNAL ELEMENT LYING OUTSIDE OF PREDETERMINED AMPLITUDE LIMITS, THE SAID MEANS FOR DETECTING INCLUDING SIGNAL INTEGRATING MEANS HAVING A PERIOD OF INTEGRATION NOT GREATER THAN THE DURATION OF ONE SIGNAL ELEMENT.
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |