US3290441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude-discriminating signal transfer circuit
Assignee: General Electric Co
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Filing: 1963-06-13
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Granted: 1966-12-06
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Expires: 1983-06-13
Abstract
No abstract record available.
Inventors
- 👤 John G Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:54
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/21; H04N5/04; H04N5/08; H04N5/213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN AMPLITUDE-DISCRIMINATING SIGNAL TRANSFER CIRCUIT FOR PRODUCING AN OUTPUT SIGNAL WHEN THE INPUT SIGNAL AMPLITUDE LIES BETWEEN A FIRST VALUE AND A SECOND VALUE COMPRISING: (A) A SEMICONDUCTOR DEVICE HAVING FIRST, SECOND, AND THIRD ELECTRODES, (B) MEANS FOR APPLYING AN INPUT SIGNAL OF SAID FIRST ELECTRODE, (C) FIRST RESISTANCE MEANS CONNECTED TO SAID SECOND ELECTRODE, (D) SECOND RESISTANCE MEANS CONNECTED TO SAID THIRD ELECTRODE, (E) UNILATERAL CONDUCTING MEANS CONNECTED BETWEEN SAID SECOND RESISTANCE MEANS AND SAID THIRD ELECTRODE OF SAID SEMICONDUCTOR DEVICE, (F) MEANS FOR APPLYING TO SAID SECOND ELECTRODE THROUGH SAID FIRST RESISTANCE MEANS A POTENTIAL SUBSTANTIALLY EQUAL TO SAID FIRST VALUE AND FOR APPLYING TO SAID THIRD ELECTRODE THROUGH SAID SECOND RESISTANCE MEANS A POTENTIAL SUBSTANTIALLY EQUAL TO SAID SECOND VALUE, AND (G) OUTPUT MEANS CONNECTED TO SAID SECOND RESISTANCE MEANS FOR DERIVING THE OUTPUT SIGNAL.
Claim 2
Dependent Claim
138 words
AN AMPLITUDE-DISCRIMINATING SIGNAL TRANSFER CIRCUIT FOR PRODUCING AN OUTPUT SIGNAL WHEN THE INPUT SIGNAL AMPLITUDE LIES BETWEEN A FIRST VALUE AND A SECOND VALUE COMPRISING: (A) A SEMICONDUCTOR DEVICE HAVING FIRST, SECOND, AND THIRD ELECTRODES, (B) MEANS FOR APPLYING AN INPUT SIGNAL OF SAID FIRST ELECTRODE, (C) FIRST RESISTANCE MEANS CONNECTED TO SAID SECOND ELECTRODE, (D) SECOND RESISTANCE MEANS CONNECTED TO SAID THIRD ELECTRODE, (E) UNILATERAL CONDUCTING MEANS CONNECTED BETWEEN SAID SECOND RESISTANCE MEANS AND SAID THIRD ELECTRODE OF SAID SEMICONDUCTOR DEVICE, (F) MEANS FOR APPLYING TO SAID SECOND ELECTRODE THROUGH SAID FIRST RESISTANCE MEANS A POTENTIAL SUBSTANTIALLY EQUAL TO SAID FIRST VALUE AND FOR APPLYING TO SAID THIRD ELECTRODE THROUGH SAID SECOND RESISTANCE MEANS A POTENTIAL SUBSTANTIALLY EQUAL TO SAID SECOND VALUE, AND (G) OUTPUT MEANS CONNECTED TO SAID SECOND RESISTANCE MEANS FOR DERIVING THE OUTPUT SIGNAL.
References Cited (Backward Citations)
US2878312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |