Patent US3287647A successfully refreshed from Google Patents.
US3287647A
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Pulse converter for binary signals of rectangular shape to pulses having four levels or steps
Assignee: International Standard Electric Corp
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Filing: 1963-04-30
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Granted: 1966-11-22
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Engel Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:24
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4917; H03; H03K; H03K5/00; H03K5/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A CONVERTER TO CONVERT A SEQUENCE OF RECTANGULAR PULSES INTO A TRAIN OF PULSES CAPABLE OF BEING TRANSMITTED ON A TRANSMISSION PATH IMPERVIOUS TO DIRECT CURRENT VOLTAGE COMPRISING: A SOURCE OF RECTANGULAR PULSES; A MONOSTABLE TRIGGER CIRCUIT; MEANS COUPLED TO SAID SOURCE AND THE INPUT OF SAID TRIGGER CIRCUIT RESPONSIVE TO EACH OF THE LEADING AND TRAILING EDGES OF EACH OF SAID RECTANGULAR PULSES TO CONTROL THE TRIGGERING OF SAID TRIGGER CIRCUIT; FIRST SWITCHING MEANS COUPLED TO SAID SOURCE RESPONSIVE TO SAID RECTANGULAR PULSES; AND SECOND SWITCHING MEANS COUPLED TO THE OUTPUT OF SAID TRIGGER CIRCUIT AND SAID FIRST SWITCHING MEANS; SAID FIRST AND SECOND SWITCHING MEANS COOPERATING TO PRODUCE SAID TRAIN OF PULSES, EACH PULSE THEREOF HAVING FOUR STEPS OF PREDETERMINED DIFFERENT VOLTAGE VALUES.
Claim 2
Dependent Claim
125 words
A CONVERTER TO CONVERT A SEQUENCE OF RECTANGULAR PULSES INTO A TRAIN OF PULSES CAPABLE OF BEING TRANSMITTED ON A TRANSMISSION PATH IMPERVIOUS TO DIRECT CURRENT VOLTAGE COMPRISING: A SOURCE OF RECTANGULAR PULSES; A MONOSTABLE TRIGGER CIRCUIT; MEANS COUPLED TO SAID SOURCE AND THE INPUT OF SAID TRIGGER CIRCUIT RESPONSIVE TO EACH OF THE LEADING AND TRAILING EDGES OF EACH OF SAID RECTANGULAR PULSES TO CONTROL THE TRIGGERING OF SAID TRIGGER CIRCUIT; FIRST SWITCHING MEANS COUPLED TO SAID SOURCE RESPONSIVE TO SAID RECTANGULAR PULSES; AND SECOND SWITCHING MEANS COUPLED TO THE OUTPUT OF SAID TRIGGER CIRCUIT AND SAID FIRST SWITCHING MEANS; SAID FIRST AND SECOND SWITCHING MEANS COOPERATING TO PRODUCE SAID TRAIN OF PULSES, EACH PULSE THEREOF HAVING FOUR STEPS OF PREDETERMINED DIFFERENT VOLTAGE VALUES.
References Cited (Backward Citations)
US3072851A
Cited
US3195056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |