US3302193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse transmission system
Assignee: AT&T Inc
•
Filing: 1964-01-02
•
Granted: 1967-01-31
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jack M Sipress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4917; H04L25/4923; H04L25/4925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
APPARATUS FOR CONVERTING BINARY PULSE SIGNALS INTO THREE STATE SIGNALS OF POSITIVE PULSES, NEGATIVE PULSES AND SPACES COMPRISING MEANS TO DIVIDE THE BINARY PULSE SIGNALS INTO BINARY WORDS OF A PLURALITY OF BITS, MEANS CONNECTED TO THE OUTPUT OF SAID DIVIDING MEANS TO CONVERT THE SAID BINARY WORDS INTO THREE STATE SIGNALS OF THE SAME NUMBER OF BITS AS SAID BINARY WORDS IN ACCORDANCE WITH A FIRST PREDETERMINED CODE UNTIL A THREE STATE SIGNAL HAVING A FIRST PREDETERMINED DIRECT CURRENT COMPONENT IS GENERATED, AND MEANS CONNECTED TO THE OUTPUT OF SAID DIVIDING MEANS TO CONVERT SAID BINARY WORDS INTO THREE STATE SIGNALS OF THE SAME NUMBER OF BITS AS SAID BINARY WORDS IN ACCORDANCE WITH A SECOND PREDETERMINED CODE AFTER THE OCCURRENCE OF A THREE STATE SIGNAL HAVING SAID FIRST PREDETERMINED DIRECT CURRENT COMPONENT UNTIL A THREE STATE SIGNAL IS GENERATED HAVING A SECOND PREDETERMINED DIRECT CURRENT COMPONENT WHEREUPON SAID CONVERSION IS AGAIN ACCOMPLISHED IN ACCORDANCE WITH SAID FIRST CODE UNTIL A THREE STATE SIGNAL HAVING SAID FIRST PREDETERMINED DIRECT CURRENT COMPONENT IS GENERATED AGAIN, SAID FIRST AND SECOND PREDETERMINED CODES AND THE TRANSFER OF CONVERSION FROM ONE PREDETERMINED CODE TO THE OTHER IN RESPONSE TO THE GENERATION OF THREE STATE SIGNALS HAVING PREDETERMINED DIRECT CURRENT COMPONENTS ASSURING THAT THE NUMBER OF CONSECUTIVE SPACES IS LESS THAN THREE.
Claim 2
Dependent Claim
218 words
APPARATUS FOR CONVERTING BINARY PULSE SIGNALS INTO THREE STATE SIGNALS OF POSITIVE PULSES, NEGATIVE PULSES AND SPACES COMPRISING MEANS TO DIVIDE THE BINARY PULSE SIGNALS INTO BINARY WORDS OF A PLURALITY OF BITS, MEANS CONNECTED TO THE OUTPUT OF SAID DIVIDING MEANS TO CONVERT THE SAID BINARY WORDS INTO THREE STATE SIGNALS OF THE SAME NUMBER OF BITS AS SAID BINARY WORDS IN ACCORDANCE WITH A FIRST PREDETERMINED CODE UNTIL A THREE STATE SIGNAL HAVING A FIRST PREDETERMINED DIRECT CURRENT COMPONENT IS GENERATED, AND MEANS CONNECTED TO THE OUTPUT OF SAID DIVIDING MEANS TO CONVERT SAID BINARY WORDS INTO THREE STATE SIGNALS OF THE SAME NUMBER OF BITS AS SAID BINARY WORDS IN ACCORDANCE WITH A SECOND PREDETERMINED CODE AFTER THE OCCURRENCE OF A THREE STATE SIGNAL HAVING SAID FIRST PREDETERMINED DIRECT CURRENT COMPONENT UNTIL A THREE STATE SIGNAL IS GENERATED HAVING A SECOND PREDETERMINED DIRECT CURRENT COMPONENT WHEREUPON SAID CONVERSION IS AGAIN ACCOMPLISHED IN ACCORDANCE WITH SAID FIRST CODE UNTIL A THREE STATE SIGNAL HAVING SAID FIRST PREDETERMINED DIRECT CURRENT COMPONENT IS GENERATED AGAIN, SAID FIRST AND SECOND PREDETERMINED CODES AND THE TRANSFER OF CONVERSION FROM ONE PREDETERMINED CODE TO THE OTHER IN RESPONSE TO THE GENERATION OF THREE STATE SIGNALS HAVING PREDETERMINED DIRECT CURRENT COMPONENTS ASSURING THAT THE NUMBER OF CONSECUTIVE SPACES IS LESS THAN THREE.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |