Patent US3197736A successfully refreshed from Google Patents.
US3197736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern recognition system
Assignee: International Business Machines Corp
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Filing: 1962-05-22
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Granted: 1965-07-27
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Expires: 1982-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert A Leightner
- 👤 Eugene N Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:26
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/12; G06V10/20; G06V10/24; G06V10/70; G06V10/74; G06V10/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A PATTERN RECOGNITION SYSTEM COMPRISING, IN COMBINATION: A DIODE SENSOR MATRIX COMPRISING ROWS AND COLUMNS OF PHOTO-SENSITIVE DIODES INTERCONNECTED SO THAT EACH DIODE ROW MAY BE SELECTED SEQUENTIALLY TO ASCERTAIN WHICH DIODES ARE CONDUCTING AS A RESULT OF LIGHT SHINING THEREON; A FIRST AND SECOND DECODER DIODE MATRIX COMPRISING ROWS OF PHOTO-SENSITIVE DIODES AND CONNECTED TO SAID SENSOR MATRIX, SAID FIRST DIODE MATRIX CONNECTED TO SAID SENSOR MATRIX, SAID FIRST DIODE MATRIX HAVING A PLURALITY OF SAID LAST-MENTIONED DIODES DISPOSED IN AN ARRAY RESEMBLING THE LIGHT AREA OF SAID PATTERN AND SAID SECOND DECODER DIODE MATRIX HAVING AN ARRAY OF SAID LAST-MENTIONED IODES DISPOSED IN AN ARRAY RESEMBLING THE DARK AREA OF SAID PATTERN; INTEGRATION MEANS JOINTLY RESPONSIVE TO SAID FIRST AND SECOND DECODER DIODE MATRICES FOR INDICATING THE PRESENCE ON SAID SENSOR MATRIX OF SAID PATTERN; AND SWITCHING MEANS CONNECTED TO SAID SENSOR MATRIX AND TO SAID DIODE MATRICES FOR ENERGIZING EACH ROW OF SAID SENSOR MATRIX AND EACH ROW OF SAID DECODER DIODE MATRICES IN A FIELD SEQUENTIAL MANNER THEREBY COMPARING THE LIGHT AND DARK AREAS OF THE PATTERN ON SAID SENSOR MATRIX WITH THE RESPECTIVE ELECTRICAL EQUIVALENT DIODE PATTERNS OF THE DECODER MATRICES.
Claim 2
Dependent Claim
196 words
A PATTERN RECOGNITION SYSTEM COMPRISING, IN COMBINATION: A DIODE SENSOR MATRIX COMPRISING ROWS AND COLUMNS OF PHOTO-SENSITIVE DIODES INTERCONNECTED SO THAT EACH DIODE ROW MAY BE SELECTED SEQUENTIALLY TO ASCERTAIN WHICH DIODES ARE CONDUCTING AS A RESULT OF LIGHT SHINING THEREON; A FIRST AND SECOND DECODER DIODE MATRIX COMPRISING ROWS OF PHOTO-SENSITIVE DIODES AND CONNECTED TO SAID SENSOR MATRIX, SAID FIRST DIODE MATRIX CONNECTED TO SAID SENSOR MATRIX, SAID FIRST DIODE MATRIX HAVING A PLURALITY OF SAID LAST-MENTIONED DIODES DISPOSED IN AN ARRAY RESEMBLING THE LIGHT AREA OF SAID PATTERN AND SAID SECOND DECODER DIODE MATRIX HAVING AN ARRAY OF SAID LAST-MENTIONED IODES DISPOSED IN AN ARRAY RESEMBLING THE DARK AREA OF SAID PATTERN; INTEGRATION MEANS JOINTLY RESPONSIVE TO SAID FIRST AND SECOND DECODER DIODE MATRICES FOR INDICATING THE PRESENCE ON SAID SENSOR MATRIX OF SAID PATTERN; AND SWITCHING MEANS CONNECTED TO SAID SENSOR MATRIX AND TO SAID DIODE MATRICES FOR ENERGIZING EACH ROW OF SAID SENSOR MATRIX AND EACH ROW OF SAID DECODER DIODE MATRICES IN A FIELD SEQUENTIAL MANNER THEREBY COMPARING THE LIGHT AND DARK AREAS OF THE PATTERN ON SAID SENSOR MATRIX WITH THE RESPECTIVE ELECTRICAL EQUIVALENT DIODE PATTERNS OF THE DECODER MATRICES.
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) | 1968-07-26 | 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 |