US3335402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code checking circuit
Assignee: IXYS Integrated Circuits Division Inc
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Filing: 1963-04-11
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Granted: 1967-08-08
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Expires: 1983-04-11
Abstract
No abstract record available.
Inventors
- 👤 Wyman L Deeg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:44
CPC Classifications
H; H03; H03M; H03M13/00; H03M13/47; H03M13/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A CIRCUIT FOR DETECTING THE PRESENCE OF A SINGLE SIGNAL IN A TOTAL POSSIBLE NUMBER M OF SIGNALS COMPRISING A SWITCHING MEANS INCLUDING CONTACTS AND A PAIR OF OPERATING WINDINGS, THE WINDINGS PROVIDING OPPOSITELY POLED FLUX FIELDS FOR CONTROLLING THE OPERATION OF THE CONTACTS, FIRST CIRCUIT MEANS INCLUDING THE CONTACTS FOR PROVIDING AN INDICATION THAT A SINGLE SIGNAL IS PRESENT, A NUMBER M OF SIGNAL INPUT TERMINALS EACH PROVIDING AN INPUT SIGNAL OF A GIVEN VALUE, SECOND CIRCUIT MEANS CONNECTING EACH OF THE SIGNAL INPUT TERMINALS IN SERIES WITH A FIRST ONE OF THE PAIR OF WINDINGS, THE GIVEN VALUE OF EACH ONE OF THE INPUT SIGNALS BEING SUCH AS TO PRODUCE A FLOW OF CURRENT THROUGH THE FIRST WINDING SUFFICIENT TO OPERATE THE CONTACTS, AND THIRD CIRCUIT MEANS CONNECTED BETWEEN ALL OF THE SIGNAL INPUT TERMINALS AND THE SECOND ONE OF THE PAIR OF WINDINGS FOR PRODUCING A FLOW OF CURRENT THROUGH THE SECOND WINDING TO INHIBIT OPERATION OF THE CONTACTS WHEN AN INPUT SIGNAL IS PRESENT AT MORE THAN ONE OF THE SIGNAL INPUT TERMINALS.
Claim 2
Dependent Claim
177 words
A CIRCUIT FOR DETECTING THE PRESENCE OF A SINGLE SIGNAL IN A TOTAL POSSIBLE NUMBER M OF SIGNALS COMPRISING A SWITCHING MEANS INCLUDING CONTACTS AND A PAIR OF OPERATING WINDINGS, THE WINDINGS PROVIDING OPPOSITELY POLED FLUX FIELDS FOR CONTROLLING THE OPERATION OF THE CONTACTS, FIRST CIRCUIT MEANS INCLUDING THE CONTACTS FOR PROVIDING AN INDICATION THAT A SINGLE SIGNAL IS PRESENT, A NUMBER M OF SIGNAL INPUT TERMINALS EACH PROVIDING AN INPUT SIGNAL OF A GIVEN VALUE, SECOND CIRCUIT MEANS CONNECTING EACH OF THE SIGNAL INPUT TERMINALS IN SERIES WITH A FIRST ONE OF THE PAIR OF WINDINGS, THE GIVEN VALUE OF EACH ONE OF THE INPUT SIGNALS BEING SUCH AS TO PRODUCE A FLOW OF CURRENT THROUGH THE FIRST WINDING SUFFICIENT TO OPERATE THE CONTACTS, AND THIRD CIRCUIT MEANS CONNECTED BETWEEN ALL OF THE SIGNAL INPUT TERMINALS AND THE SECOND ONE OF THE PAIR OF WINDINGS FOR PRODUCING A FLOW OF CURRENT THROUGH THE SECOND WINDING TO INHIBIT OPERATION OF THE CONTACTS WHEN AN INPUT SIGNAL IS PRESENT AT MORE THAN ONE OF THE SIGNAL INPUT TERMINALS.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |