US3197735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading machine
Assignee: RCA Corp
•
Filing: 1962-04-18
•
Granted: 1965-07-27
•
Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Harold E Haynes
- 👤 Harry J Woll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A CHARACTER RECOGNITITON SYSTEM, THE COMBINATION COMPRISING: A POSITIVE MASK AND A NEGATIVE MASK OF EACH CHARATER RECOGNIZABLE IN SAID SYSTEM; MEANS FOR COMPARING SIMILAR IMAGES OF THE SAME UNKNOWN CHARACTER WITH EACH SAID MASK; MEANS PRODUCING PAIRS OF SIGNALS, EACH SIGNAL OF A PAIR CORRESPONDING TO THE DEGREE OF MATCH BETWEEN A DIFFERENT ONE OF SAID IMAGES AND A DIFFERENT ON OF THE MASKS FOR THE SAME SAID RECOGNIZABLE CHARACTER; MEANS PROVIDING A NUMBER OF REFERENCE SIGNALS EACH HAVING AN AMPLITUDE RELATED TO A DIFFERENT RECOGNIZABLE CHARACTER; AND SIGNAL COMBINING MEANS FOR COMBINING EACH OF SAID REFERENCE SIGNALS WITH THE RELATED SAID PAIR OF SIGNALS.
Claim 2
Dependent Claim
107 words
IN A CHARACTER RECOGNITITON SYSTEM, THE COMBINATION COMPRISING: A POSITIVE MASK AND A NEGATIVE MASK OF EACH CHARATER RECOGNIZABLE IN SAID SYSTEM; MEANS FOR COMPARING SIMILAR IMAGES OF THE SAME UNKNOWN CHARACTER WITH EACH SAID MASK; MEANS PRODUCING PAIRS OF SIGNALS, EACH SIGNAL OF A PAIR CORRESPONDING TO THE DEGREE OF MATCH BETWEEN A DIFFERENT ONE OF SAID IMAGES AND A DIFFERENT ON OF THE MASKS FOR THE SAME SAID RECOGNIZABLE CHARACTER; MEANS PROVIDING A NUMBER OF REFERENCE SIGNALS EACH HAVING AN AMPLITUDE RELATED TO A DIFFERENT RECOGNIZABLE CHARACTER; AND SIGNAL COMBINING MEANS FOR COMBINING EACH OF SAID REFERENCE SIGNALS WITH THE RELATED SAID PAIR OF SIGNALS.
References Cited (Backward Citations)
US2919425A
Cited
US3085227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |