US3225329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical logic reading machine
Assignee: Control Data Corp
•
Filing: 1963-10-30
•
Granted: 1965-12-21
•
Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Rabinow Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:51
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/88
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
IN AN OPTICAL CHARACTER READING MACHINE FOR CHARACTERS ON A CONTRASTING BACKGROUND; MEANS FOR FORMING AN IMAGE OF ONE OF SAID CHARACTERS AND ITS BACKGROUND; A RECEIVING SURFACE ON WHICH SAID IMAGE IS FORMED; MEANS TO CONDUCT LIGHT FROM DISCRETE PARTS OF SAID SURFACE ON WHICH SAID IMAGE IS FORMED TO INDIVIDUAL LIGHT DISTRIBUTION AREAS IN A MANNER SUCH THAT THE TOTAL OF ALL OF SAID AREAS EMITS A DISSECTED IMAGE OF THE CHARACTER AND ITS BACKGROUND; A GROUP OF ASSERTION PHOTOCELLS FOR THE CHARACTER; A PLURALITY OF NEGATION PHOTOCELLS; AND OPTICAL LOGIC COMBINING MEANS INCLUDING A GROUP OF LIGHT CONDUCTIVE MEMBERS FOR EACH CHARACTER, FOR OPTICALLY COUPLING PRESELECTED LIGHT DISTRIBUTION AREAS CONTAINING SAID DISSECTED IMAGE TO SAID PHOTOCELLS; EACH OF SAID GROUPS OF MEMBERS INCLUDING MEMBERS COUPLED BETWEEN SAID ASSERTION PHOTOCELLS AND PRESELECTED DISTRIBUTION AREAS, AND AT LEAST ONE OF SAID GROUPS HAVING ONE MEMBER COUPLING A PREDETERMINED DISTRIBUTION AREAS WITH A PRESELECTED NEGATION PHOTOCELL.
References Cited (Backward Citations)
US2881976A
Cited
US3125683A
Cited
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 |