US3191013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase modulation read out circuit
Assignee: Unisys Corp
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Filing: 1962-07-23
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Granted: 1965-06-22
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Expires: 1982-07-23
Abstract
No abstract record available.
Inventors
- 👤 Reader Trevor Drake
- 👤 Elmer C Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:37
CPC Classifications
H; H03; H03K; H03K9/00; G; G11; G11B; G11B20/00; G11B20/10; G11B20/14; G11B20/1403; G11B20/1407; G11B20/1419
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
MEANS FOR ELIMINATING NON-SIGNIFICANT PULSE SIGNALS FROM A SERIES OF INFORMATION PULSE SIGNALS COMPRISING A CONTROL CIRCUIT TO PRODUCE AN OUTPUT SIGNAL OF A FIRST OR SECOND LEVEL, MEANS FOR APPLYING SAID INFORMATION PULSE SIGNALS TO SWITCH SAID CONTROL CIRCUIT TO CHANGE THE OUTPUT SIGNAL THEREFROM FROM SAID FIRST TO SAID SECOND LEVEL, AN AND GATE CIRCUIT, MEANS FOR APPLYING SAID NONSIGNIFICANT AND INFORMATION PULSE SIGNALS TO SAID AND GATE CIRCUIT, MEANS FOR APPLYING AN OUTPUT SIGNAL FROM SAID CONTROL CIRCUIT TO INHIBIT THE PASSAGE OF SIGNALS THROUGH SAID AND GATE CIRCUIT WHEN SAID CONTROL CIRCUIT PRODUCES AN OUTPUT SIGNAL OF SAID SECOND LEVEL AND TO PERMIT THE PASSAGE OF SIGNALS WHEN SAID CONTROL CIRCUIT PRODUCES AN OUTPUT SIGNAL OF SAID FIRST LEVEL, MEANS FOR APPLYING SAID NON-SIGNIFICANT PULSE SIGNALS TO RESWITCH SAID CONTROL CIRCUIT TO CHANGE THE OUTPUT SIGNAL THEREFROM FROM SAID SECOND LEVEL TO SAID FIRST LEVEL, AND THE OUTPUT SIGNAL LEVEL FROM SAID CONTROL CIRCUIT BEING AUTOMATICALLY RESWITCHED FROM SAID SECOND LEVEL TO SAID FIRST LEVEL AFTER A PRE-DETERMINED TIME PERIOD IN THE ABSENCE OF SAID NONSIGNIFICANT PULSES.
Claim 2
Dependent Claim
181 words
MEANS FOR ELIMINATING NON-SIGNIFICANT PULSE SIGNALS FROM A SERIES OF INFORMATION PULSE SIGNALS COMPRISING A CONTROL CIRCUIT TO PRODUCE AN OUTPUT SIGNAL OF A FIRST OR SECOND LEVEL, MEANS FOR APPLYING SAID INFORMATION PULSE SIGNALS TO SWITCH SAID CONTROL CIRCUIT TO CHANGE THE OUTPUT SIGNAL THEREFROM FROM SAID FIRST TO SAID SECOND LEVEL, AN AND GATE CIRCUIT, MEANS FOR APPLYING SAID NONSIGNIFICANT AND INFORMATION PULSE SIGNALS TO SAID AND GATE CIRCUIT, MEANS FOR APPLYING AN OUTPUT SIGNAL FROM SAID CONTROL CIRCUIT TO INHIBIT THE PASSAGE OF SIGNALS THROUGH SAID AND GATE CIRCUIT WHEN SAID CONTROL CIRCUIT PRODUCES AN OUTPUT SIGNAL OF SAID SECOND LEVEL AND TO PERMIT THE PASSAGE OF SIGNALS WHEN SAID CONTROL CIRCUIT PRODUCES AN OUTPUT SIGNAL OF SAID FIRST LEVEL, MEANS FOR APPLYING SAID NON-SIGNIFICANT PULSE SIGNALS TO RESWITCH SAID CONTROL CIRCUIT TO CHANGE THE OUTPUT SIGNAL THEREFROM FROM SAID SECOND LEVEL TO SAID FIRST LEVEL, AND THE OUTPUT SIGNAL LEVEL FROM SAID CONTROL CIRCUIT BEING AUTOMATICALLY RESWITCHED FROM SAID SECOND LEVEL TO SAID FIRST LEVEL AFTER A PRE-DETERMINED TIME PERIOD IN THE ABSENCE OF SAID NONSIGNIFICANT PULSES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |