US3456199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two level to three level pulse code converter utilizing modulo-2 logic and delayed pulse feedback
Assignee: US Philips Corp
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Filing: 1966-03-08
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Granted: 1969-07-15
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Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 Petrus Josephus Van Gerwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4917; H04L25/4923; H04L25/4925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
CODE CONVERTER FOR CONVERTING A SERIES OF INFORMATION CODED BIVALENT PULSES WHICH COINCIDE WITH THE PULSES OF A SERIES OF EQUIDISTANT CLOCK PULSES OF PREDETERMINED PERIOD, INTO A SERIES OF TRIVALENT PULSES HAVING SUPPRESSED FREQUENCY SPECTRUM COMPONENTS, SAID CODE CONVERTER COMPRISING PULSE TRANSFORMATION MEANS FOR TRANSFORMING SAID CODED BIVALENT PULSES INTO A TRANSFORMED BIVALENT PULSE SERIES, MEANS FOR DELAYING SAID TRANSFORMED BIVALENT PULSE SERIES FOR A PERIOD THAT IS A MULTIPLE OF SAID PREDETERMINED PERIOD, AND LINEAR COMBINATION MEANS FOR COMBINING THE UNDERLAYED SAID TRANSFORMED PULSE SERIES WITH SAID DELAYED TRANSFORMED PULSE SERIES TO PRODUCE SAID SERIES OF TRIVALENT PULSES, SAID PULSE TRANSFORMATION MEANS COMPRISING MODULO-2 COMBINING MEANS FOR COMBINING SAID CODED BIVALENT PULSES AND SAID DELAYED TRANSFORMER PULSES.
References Cited (Backward Citations)
US3162724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |