US3183442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phaseproof pulse signal transmission system utilizing binary to quaternary conversion means
Assignee: Westinghouse Electric Corp
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Filing: 1959-10-09
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Granted: 1965-05-11
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Expires: 1979-10-09
Abstract
No abstract record available.
Inventors
- 👤 Richard F J Filipowsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:53
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A SYSTEM FOR TRANSMITTING A PLURALITY OF INTELLIGENCE SIGNALS COMPRISING, MEANS FOR PRODUCING A FIRST SYMBOLIC ELECTRICAL SIGNAL HAVING A FIRST CENTER FREQUENCY MODULATED BY A FIRST BIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A FIRST PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A SECOND ELECTRICAL SIGNAL HAVING THE SAME CENTER FREQUENCY AS SAID FIRST CENTER FREQUENCY AND MODULATED BY A SECOND BIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A SECOND PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A THIRD ELECTRICAL SIGNAL HAVING A SECOND CENTER FREQUENCY ABOVE SAID FIRST CENTER FREQUENCY AND MODULATED BY A THIRD UNIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A THIRD PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A FOURTH ELECTRICAL SIGNAL HAVING A THIRD CENTER FREQUENCY BELOW SAID FIRST CENTER FREQUENCY AND MODULATED BY SAID THIRD SYMBOLIC WAVEFORM SO AS TO PROVIDE A FOURTH PLURALITY OF SIDEBANDS, AND SAID THIRD AND SAID FOURTH PLURALITY OF SIDEBANDS BEING INTERMEDIATE SAID FIRST AND SAID SECOND PLURALITY OF SIDEBANDS.
Claim 2
Independent Claim
159 words
A SYSTEM FOR TRANSMITTING A PLURALITY OF INTELLIGENCE SIGNALS COMPRISING, MEANS FOR PRODUCING A FIRST SYMBOLIC ELECTRICAL SIGNAL HAVING A FIRST CENTER FREQUENCY MODULATED BY A FIRST BIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A FIRST PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A SECOND ELECTRICAL SIGNAL HAVING THE SAME CENTER FREQUENCY AS SAID FIRST CENTER FREQUENCY AND MODULATED BY A SECOND BIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A SECOND PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A THIRD ELECTRICAL SIGNAL HAVING A SECOND CENTER FREQUENCY ABOVE SAID FIRST CENTER FREQUENCY AND MODULATED BY A THIRD UNIDIRECTIONAL SYMBOLIC WAVEFORM SO AS TO PROVIDE A THIRD PLURALITY OF SIDEBANDS, MEANS FOR PRODUCING A FOURTH ELECTRICAL SIGNAL HAVING A THIRD CENTER FREQUENCY BELOW SAID FIRST CENTER FREQUENCY AND MODULATED BY SAID THIRD SYMBOLIC WAVEFORM SO AS TO PROVIDE A FOURTH PLURALITY OF SIDEBANDS, AND SAID THIRD AND SAID FOURTH PLURALITY OF SIDEBANDS BEING INTERMEDIATE SAID FIRST AND SAID SECOND PLURALITY OF SIDEBANDS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |