Patent US3225213A successfully refreshed from Google Patents.
US3225213A
Expired / Lapsed
US
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Transition detector
Assignee: Beckman Coulter Inc
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Filing: 1962-05-18
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Granted: 1965-12-21
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Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Hinrichs Karl
- 👤 Robert E Eastman
- 👤 John R Kolden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/493; H03; H03K; H03K5/00; H03K5/01; H03K5/08; H03K5/082; H03K5/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A DEVICE FOR DETECTING TRANSITIONS OF AN INPUT SIGNAL COMPRISING, A THRESHOLD CIRCUIT, FIRST MEANS FOR APPLYING SAID INPUT SIGNAL TO SAID THRESHOLD CONTROL CIRCUIT, FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, SECOND MEANS FOR APPLYING SAID INPUT SIGNAL TO SAID FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, SWITCH MEANS CONNECTED WITH THE OUTPUTS OF SAID FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, FIRST AND SECOND COMPARATORS CONNECTED WITH THE OUTPUTS OF SAID SWITCH MEANS AND SAID THRESHOLD CONTROL CIRCUIT FOR COMPARING THE INPUT SIGNALS APPLIED THERETO AND PROVIDING OUTPUT SIGNALS INDICATIVE OF THE DIFFERENCE BETWEEN THE INPUT SIGNALS THERETO, LATCH MEANS, AND MEANS CONNECTING SAID COMPARATORS WITH SAID LATCH MEANS WHEREBY SAID LATCH MEANS ARE TRIGGERED BY PREDETERMINED INPUTS THERETO TO PROVIDE OUTPUT SIGNALS INDICATIVE OF THE TRANSITIONS OF SAID INPUT SIGNAL.
Claim 2
Independent Claim
136 words
A DEVICE FOR DETECTING TRANSITIONS OF AN INPUT SIGNAL COMPRISING, A THRESHOLD CIRCUIT, FIRST MEANS FOR APPLYING SAID INPUT SIGNAL TO SAID THRESHOLD CONTROL CIRCUIT, FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, SECOND MEANS FOR APPLYING SAID INPUT SIGNAL TO SAID FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, SWITCH MEANS CONNECTED WITH THE OUTPUTS OF SAID FIRST AND SECOND PEAK READ AND HOLD CIRCUITS, FIRST AND SECOND COMPARATORS CONNECTED WITH THE OUTPUTS OF SAID SWITCH MEANS AND SAID THRESHOLD CONTROL CIRCUIT FOR COMPARING THE INPUT SIGNALS APPLIED THERETO AND PROVIDING OUTPUT SIGNALS INDICATIVE OF THE DIFFERENCE BETWEEN THE INPUT SIGNALS THERETO, LATCH MEANS, AND MEANS CONNECTING SAID COMPARATORS WITH SAID LATCH MEANS WHEREBY SAID LATCH MEANS ARE TRIGGERED BY PREDETERMINED INPUTS THERETO TO PROVIDE OUTPUT SIGNALS INDICATIVE OF THE TRANSITIONS OF SAID INPUT SIGNAL.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |