Patent US3201569A successfully refreshed from Google Patents.
US3201569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mark selection circuit
Assignee: RTX Corp
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Filing: 1961-06-12
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Granted: 1965-08-17
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Expires: 1981-06-12
Abstract
No abstract record available.
Inventors
- 👤 Gregory F Conron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:34
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A MARK SELECTION CIRCUIT INCLUDING IN COMBINATION MEANS FOR SERIALLY READING THE INTENSITY OFMARKS IN AN ITEM HAVING A PLURALITY OF MARKING POSITIONS, MEANS FOR PROVIDING A FIRST SIGNAL IN ACCORD WITH THE MARK INTENSITY OF THE POSITION PRESENTLY BEING READ, MEANS FOR PROVIDING A SECOND SIGNAL IN ACCORD WITH THE GREATEST MARK INTENSITY OF THE POSITIONS PREVIOUSLY HAVING BEEN READ, A DEVICE HAVING TWO STABLE STASTES, MEANS FOR COMPARING THE FIRST AND SECOND SIGNALS, THE COMPARING MEANS SELECTIVELY PROVIDING A FIRST OUTPUT WHEN THE RATIO OF THE FIRST SIGNAL TO TH-E SECOND SIGNAL EXCEEDS A FIRST NUMBER WHICH IS GREATER THAN UNITY AND PROVIDING A SECOND OUTPUT WHEN SAID RATIO IS LESS THAN THE FIRST NUMBER BUT GREATER THAN A SECOND NUMBER WHICH IS LESAS THAN UNITY, MEANS RESPONSIVE TO THE FIRST OUTPUT FOR FORCING THE DEVICE TO A FIRST STATE, AND MEANS RESPONSIVE TO THE SECOND OUTPUT OF FORCING THE DEVICE TO THE SECOND STATE, THE COMPARING MEANS PERMITTING THE STATE OF THE DEVICE TO REMAIN CONSTANT WHEN SAID RATIO IS LESS THAN SAID NUMBER.
Claim 2
Dependent Claim
177 words
A MARK SELECTION CIRCUIT INCLUDING IN COMBINATION MEANS FOR SERIALLY READING THE INTENSITY OFMARKS IN AN ITEM HAVING A PLURALITY OF MARKING POSITIONS, MEANS FOR PROVIDING A FIRST SIGNAL IN ACCORD WITH THE MARK INTENSITY OF THE POSITION PRESENTLY BEING READ, MEANS FOR PROVIDING A SECOND SIGNAL IN ACCORD WITH THE GREATEST MARK INTENSITY OF THE POSITIONS PREVIOUSLY HAVING BEEN READ, A DEVICE HAVING TWO STABLE STASTES, MEANS FOR COMPARING THE FIRST AND SECOND SIGNALS, THE COMPARING MEANS SELECTIVELY PROVIDING A FIRST OUTPUT WHEN THE RATIO OF THE FIRST SIGNAL TO TH-E SECOND SIGNAL EXCEEDS A FIRST NUMBER WHICH IS GREATER THAN UNITY AND PROVIDING A SECOND OUTPUT WHEN SAID RATIO IS LESS THAN THE FIRST NUMBER BUT GREATER THAN A SECOND NUMBER WHICH IS LESAS THAN UNITY, MEANS RESPONSIVE TO THE FIRST OUTPUT FOR FORCING THE DEVICE TO A FIRST STATE, AND MEANS RESPONSIVE TO THE SECOND OUTPUT OF FORCING THE DEVICE TO THE SECOND STATE, THE COMPARING MEANS PERMITTING THE STATE OF THE DEVICE TO REMAIN CONSTANT WHEN SAID RATIO IS LESS THAN SAID NUMBER.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |