Patent US3321630A successfully refreshed from Google Patents.
US3321630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the detection of high intensity light flashes
Assignee: NCR Voyix Corp
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Filing: 1963-05-28
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Granted: 1967-05-23
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Expires: 1983-05-28
Abstract
No abstract record available.
Inventors
- 👤 Richard F Durig
- 👤 Ralph C Willett
- 👤 Robert D Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/0014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
A SYSTEM FOR THE DETECTION OF HIGH INTENSITY LIGHT FLASHES COMPRISING A FIRST AND A SECOND SENSOR DEVICE EACH ARRANGED TO RECEIVE LIGHT FROM SOURCES EXTERNAL OF THE SYSTEM, AND EACH OF THE TYPE WHICH, WHEN ILLUMINATED BY LIGHT, WILL PRODUCE AN ELECTRICAL POTENTIAL SIGNAL OF A MAGNITUDE WHICH IS PROPORTIONAL TO THE LEVEL OF INTENSITY OF THE ILLUMINATING LIGHT, FIRST MEANS FOR AMPLIFYING SAID ELECTRICAL POTENTIAL SIGNAL PRODUCED BY THE FIRST ONE OF SAID SENSOR DEVICES, A SLOPE DISCRIMINATOR MEANS FOR PRODUCING A DEGREE OF SLOPE SIGNAL HAVING AN AMPLITUDE PROPORTIONAL TO THE RATE OF RISE OF SAID ELECTRICAL POTENTIAL SIGNAL PRODUCED BY SAID FIRST SENSOR DEVICE, MEANS FOR APPLYING SAID ELECTRICAL POTENTIAL SIGNAL FROM SAID AMPLIFYING MEANS TO SAID SLOPE DISCRIMINATOR MEANS, SECOND MEANS FOR AMPLIFYING THE DIFFERENCE BETWEEN THE SAID ELECTRICAL POTENTIAL SIGNALS PRODUCED BY EACH OF SAID SENSORS DEVICES AND PRODUCING AN AMPLIFIED DIFFERENCE POTENTIAL SIGNAL, ELECTRICAL CIRCUIT MEANS FOR APPLYING THE SAID ELECTRICAL POTENTIAL SIGNALS PRODUCED BY EACH OF SAID SENSOR DEVICES TO SAID SECOND AMPLIFYING MEANS, AND A LEVEL DETECTOR MEANS SENSITIVE TO POTENTIAL MAGNITUDES OF A SELECTED LEVEL FOR PRODUCING AN OUTPUT SIGNAL IN RESPONSE TO THE APPLICATION THERETO OF EITHER SAID DEGREE OF SLOPE SIGNAL OR SAID AMPLIFIED DIFFERENCE POTENTIAL SIGNAL OF SUFFICIENT MAGNITUDE TO EXCEED SAID SELECTED LEVEL.
Claim 2
Independent Claim
217 words
A SYSTEM FOR THE DETECTION OF HIGH INTENSITY LIGHT FLASHES COMPRISING A FIRST AND A SECOND SENSOR DEVICE EACH ARRANGED TO RECEIVE LIGHT FROM SOURCES EXTERNAL OF THE SYSTEM, AND EACH OF THE TYPE WHICH, WHEN ILLUMINATED BY LIGHT, WILL PRODUCE AN ELECTRICAL POTENTIAL SIGNAL OF A MAGNITUDE WHICH IS PROPORTIONAL TO THE LEVEL OF INTENSITY OF THE ILLUMINATING LIGHT, FIRST MEANS FOR AMPLIFYING SAID ELECTRICAL POTENTIAL SIGNAL PRODUCED BY THE FIRST ONE OF SAID SENSOR DEVICES, A SLOPE DISCRIMINATOR MEANS FOR PRODUCING A DEGREE OF SLOPE SIGNAL HAVING AN AMPLITUDE PROPORTIONAL TO THE RATE OF RISE OF SAID ELECTRICAL POTENTIAL SIGNAL PRODUCED BY SAID FIRST SENSOR DEVICE, MEANS FOR APPLYING SAID ELECTRICAL POTENTIAL SIGNAL FROM SAID AMPLIFYING MEANS TO SAID SLOPE DISCRIMINATOR MEANS, SECOND MEANS FOR AMPLIFYING THE DIFFERENCE BETWEEN THE SAID ELECTRICAL POTENTIAL SIGNALS PRODUCED BY EACH OF SAID SENSORS DEVICES AND PRODUCING AN AMPLIFIED DIFFERENCE POTENTIAL SIGNAL, ELECTRICAL CIRCUIT MEANS FOR APPLYING THE SAID ELECTRICAL POTENTIAL SIGNALS PRODUCED BY EACH OF SAID SENSOR DEVICES TO SAID SECOND AMPLIFYING MEANS, AND A LEVEL DETECTOR MEANS SENSITIVE TO POTENTIAL MAGNITUDES OF A SELECTED LEVEL FOR PRODUCING AN OUTPUT SIGNAL IN RESPONSE TO THE APPLICATION THERETO OF EITHER SAID DEGREE OF SLOPE SIGNAL OR SAID AMPLIFIED DIFFERENCE POTENTIAL SIGNAL OF SUFFICIENT MAGNITUDE TO EXCEED SAID SELECTED LEVEL.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |