US3345575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse midpoint detector
Assignee: Individual
•
Filing: 1964-04-29
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Granted: 1967-10-03
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jan H M Van Der Lans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:39
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K5/1532
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A SYMMETRICAL PULSE MIDPOINT DETECTOR, THE COMBINATION COMPRISING MEANS FOR PRODUCING FIRST AND SECOND IDENTICAL WAVES, MEANS DELAYING THE SECOND WAVE SLIGHTLY SO THAT THE MIDPOINTS OF SAID WAVES ARE SEPARATED LESS THAN HALF THE WIDTH OF SAID WAVES, MEANS FOR PRODUCING A STEP WAVE DURING THE PERIOD THE AMPLITUDE OF THE SECOND WAVE IS GREATER THAN THE AMPLITUDE OF THE FIRST WAVE, MEANS FOR PRODUCING A SPIKE WAVE AT THE BEGINNING OF SAID STEP WAVE LOCATING THE MIDPOINT OF SAID INPUT WAVE DISPLACED BY HALF THE DELAY INTRODUCED BY SAID DELAYING MEANS, AND MEANS TO BLOCK SPURIOUS SIGNALS FROM PRODUCING A FALSE OUTPUT OF SAID DETECTOR.
Claim 2
Dependent Claim
108 words
IN A SYMMETRICAL PULSE MIDPOINT DETECTOR, THE COMBINATION COMPRISING MEANS FOR PRODUCING FIRST AND SECOND IDENTICAL WAVES, MEANS DELAYING THE SECOND WAVE SLIGHTLY SO THAT THE MIDPOINTS OF SAID WAVES ARE SEPARATED LESS THAN HALF THE WIDTH OF SAID WAVES, MEANS FOR PRODUCING A STEP WAVE DURING THE PERIOD THE AMPLITUDE OF THE SECOND WAVE IS GREATER THAN THE AMPLITUDE OF THE FIRST WAVE, MEANS FOR PRODUCING A SPIKE WAVE AT THE BEGINNING OF SAID STEP WAVE LOCATING THE MIDPOINT OF SAID INPUT WAVE DISPLACED BY HALF THE DELAY INTRODUCED BY SAID DELAYING MEANS, AND MEANS TO BLOCK SPURIOUS SIGNALS FROM PRODUCING A FALSE OUTPUT OF SAID DETECTOR.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |