US3350573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for suppressing noise when switching between various a-c sources superimposed on different d-c biases
Assignee: Potter Instrument Co Inc
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Filing: 1964-09-14
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Granted: 1967-10-31
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Janos T Barany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:51
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/003; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/62; H03K17/6257
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A WAVE SHAPING CIRCUIT TO SEPARATE THE A-C SIGNAL FROM A COMPOSITE SIGNAL CONSISTING OF SAID A-C SIGNAL SUPERIMPOSED ON A CHANGING D-C SIGNAL PEDESTALS COMPRISING: A CAPACITOR HAVING A FIRST AND A SECOND TERMINAL, A RESISTOR HAVING A FIRST AND A SECOND TERMINAL, SAID CAPACITOR AND RESISTOR BEING COUPLED SERIALLY BY CONNECTING SAID RESPECTIVE FIRST TERMINALS AT A JUNCTION, A PLURALITY OF TRANSDUCERS PRODUCING A LOW LEVEL ALTERNATING CURRENT OUTPUT SIGNAL SUPERIMPOSED ON VARIOUS DIFFERENT D.C. PEDESTALS. MEANS FOR SELECTIVELY DECOUPLING ONE OF SAID OUTPUT SIGNALS FROM SAID SECOND TERMINAL OF SAID CAPACITOR AND COUPLING ANOTHER ONE OF SAID OUTPUT SIGNALS THERETO, MEANS FOR APPLYING A REFERENCE SOURCE TO SAID SECOND TERMINAL OF SAID RESISTOR, AND MEANS FOR CLAMPING SAID JUNCTION TO SAID REFERENCE TERMINAL DURING THE DECOUPLING OF SAID ONE SIGNAL AND THE COUPLING OF SAID OTHER SIGNAL ONLY.
Claim 2
Dependent Claim
141 words
A WAVE SHAPING CIRCUIT TO SEPARATE THE A-C SIGNAL FROM A COMPOSITE SIGNAL CONSISTING OF SAID A-C SIGNAL SUPERIMPOSED ON A CHANGING D-C SIGNAL PEDESTALS COMPRISING: A CAPACITOR HAVING A FIRST AND A SECOND TERMINAL, A RESISTOR HAVING A FIRST AND A SECOND TERMINAL, SAID CAPACITOR AND RESISTOR BEING COUPLED SERIALLY BY CONNECTING SAID RESPECTIVE FIRST TERMINALS AT A JUNCTION, A PLURALITY OF TRANSDUCERS PRODUCING A LOW LEVEL ALTERNATING CURRENT OUTPUT SIGNAL SUPERIMPOSED ON VARIOUS DIFFERENT D.C. PEDESTALS. MEANS FOR SELECTIVELY DECOUPLING ONE OF SAID OUTPUT SIGNALS FROM SAID SECOND TERMINAL OF SAID CAPACITOR AND COUPLING ANOTHER ONE OF SAID OUTPUT SIGNALS THERETO, MEANS FOR APPLYING A REFERENCE SOURCE TO SAID SECOND TERMINAL OF SAID RESISTOR, AND MEANS FOR CLAMPING SAID JUNCTION TO SAID REFERENCE TERMINAL DURING THE DECOUPLING OF SAID ONE SIGNAL AND THE COUPLING OF SAID OTHER SIGNAL ONLY.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |