US3342978A
Expired / Lapsed
US
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Scanning system
Assignee: Fma Inc
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Filing: 1962-11-05
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Granted: 1967-09-19
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 John F Cameron
- 👤 William R Arsenault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:55
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G06; G06K; G06K17/00; G06K17/0016; G06K17/0019; G11B; G11B27/00; G11B27/10; G11B7/00; G11B7/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
APPARATUS FOR READING BINARY-CODED DATA RECORDED ON A ROLL OF PHOTOGRAPHIC FILM IN THE FORM FOR BLOCKS OF TRANSPARENT AND OPAQUE DATA MARKS ARRANGED IN STRAIGHT ROWS PERPENDICULAR TO THE LENGTH OF FILM AND FLAG MARKS RECORDED ON THE FILM IN FRONT OF AND IS A STRAIGHT LINE WITH EACH ROW COMPRISING: A BEAM OF LIGHT FOCUSED AS A SPOT ON THE SURFACE OF THE FILM; MEANS FOR TRANSPORTING THE FILM PAST THE BEAM OF LIGHT; A RAMP GENERATOR REPEATEDLY PRODUCING A VOLTAGE THAT RISES CONTINUOUSLY FROM AN INITIAL POINT UNTIL TURNED OFF, AFTER WHICH IT RETURNS TO THE INITIAL POINT; MEANS FOR REPEATEDLY DEFLECTING THE SPOT TRANSVERSE TO THE LENGTH OF THE FILM RESPONSIVE TO THE VOLTAGE PRODUCED BY THE RAMP GENERATOR BEGINNING AT A POINT IN FRONT OF THE ROWS; MEANS RESPONSIVE TO THE SENSING BY THE BEAM OF THE ABSENCE OF A FLAG MARK FOR TURNING OFF THE RAMP GENERATOR AFTER A FIRST TIME INTERVAL CORRESPOND-
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |