US3258581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character recognition system
Assignee: Old Carco LLC
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Filing: 1961-12-08
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Granted: 1966-06-28
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Expires: 1981-12-08
Abstract
No abstract record available.
Inventors
- 👤 David N Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:50
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/12; G06V10/20; G06V10/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN AN OPTICAL RECOGNITION SYSTEM, A RETINA COMPRISING A PLURALITY OF PHOTOSENSITIVE RECEPTORS ARRANGED OVER A RETINAL AREA, EACH BEING ADAPTED TO EMIT ELECTRICAL PULSES IN RESPONSE TO CHANGES IN THE ILLUMINATION THEREOF, AN EVENT GENERATING MEANS ASSOCIATED WITH EACH RECEPTOR AND RESPONSIVE TO PREDETERMINED PULSE PATTERNS THEREFROM FOR TRANSMITTING ELECTRICAL EVENT SIGNALS MEANS FOR MOVING AN IMAGE OF A SUBJECT TO BE RECOGNIZED IN A CONSTANTLY CHANGING DIRECTION OVER THE SURFACE OF SAID RETINA TO EFFECT SAID PULSES, MEANS ASSOCIATED WITH THE LAST NAMED MEANS FOR TRANSMITTING ELECTRICAL REFERENCE PULSES, AND MEANS RESPONSIVE TO SAID EVENT SIGNALS AND REFERENCE PULSES FOR SORTING AND ACCUMULATING SAID EVENT SIGNALS IN SYNCHRONIZATION WITH THE MOVEMENT OF SAID IMAGE.
Claim 2
Dependent Claim
116 words
IN AN OPTICAL RECOGNITION SYSTEM, A RETINA COMPRISING A PLURALITY OF PHOTOSENSITIVE RECEPTORS ARRANGED OVER A RETINAL AREA, EACH BEING ADAPTED TO EMIT ELECTRICAL PULSES IN RESPONSE TO CHANGES IN THE ILLUMINATION THEREOF, AN EVENT GENERATING MEANS ASSOCIATED WITH EACH RECEPTOR AND RESPONSIVE TO PREDETERMINED PULSE PATTERNS THEREFROM FOR TRANSMITTING ELECTRICAL EVENT SIGNALS MEANS FOR MOVING AN IMAGE OF A SUBJECT TO BE RECOGNIZED IN A CONSTANTLY CHANGING DIRECTION OVER THE SURFACE OF SAID RETINA TO EFFECT SAID PULSES, MEANS ASSOCIATED WITH THE LAST NAMED MEANS FOR TRANSMITTING ELECTRICAL REFERENCE PULSES, AND MEANS RESPONSIVE TO SAID EVENT SIGNALS AND REFERENCE PULSES FOR SORTING AND ACCUMULATING SAID EVENT SIGNALS IN SYNCHRONIZATION WITH THE MOVEMENT OF SAID IMAGE.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |