US3246296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character reading apparatus
Assignee: Unisys Corp
•
Filing: 1961-05-03
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Granted: 1966-04-12
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Heizer
- 👤 Virgil A Hinds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/19; G06V30/192; G06V30/195
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A SYSTEM FOR CHARACTER RECOGNITION COMPRISING MEANS TO SCAN A CHARACTER TO BE RECOGNIZED TO PROVIDE AN IDENTIFYING DIGITAL SIGNAL IN A SHIFT REGISTER, A DECODER ASSOCIATED WITH EACH KNOWN CHARACTER, MEANS TO FEED THE CONTENT OF SAID SHIFT REGISTER TO EACH OF SAID DECODERS WHEREBY EACH DECODER PRODUCES AN ANALOG OUTPUT THEREFROM WHICH IS A FUNCTION OF THE DEGREE OF IDENTITY BETWEEN THE CONTENTS OF THE SHIFT REGISTER AND THE CHARACTER WITH WHICH THE DECODER IS ASSOCIATED, INDIVIDUAL STORAGE MEANS TO STORE THE ANALOG LEVEL OUTPUTS OF EACH OF SAID DECODERS, THRESHOLD DETECTOR MEANS RESPONSIVE TO ONE OF THE ANALOG LEVELS EXCEEDING A PREDETERMINED LEVEL, AND MEANS CONTROLLED BY THE THRESHOLD DETECTOR MEANS FOR SAMPLING SAID STORAGE MEANS TO SELECT ONE OF THE SAID ANALOG LEVELS HAVING A PREDETERMINED RELATION TO THE REMAINDER THEREOF, SAID SELECTED LEVEL IDENTIFYING THE SCANNED CHARACTER.
Claim 2
Independent Claim
142 words
A SYSTEM FOR CHARACTER RECOGNITION COMPRISING MEANS TO SCAN A CHARACTER TO BE RECOGNIZED TO PROVIDE AN IDENTIFYING DIGITAL SIGNAL IN A SHIFT REGISTER, A DECODER ASSOCIATED WITH EACH KNOWN CHARACTER, MEANS TO FEED THE CONTENT OF SAID SHIFT REGISTER TO EACH OF SAID DECODERS WHEREBY EACH DECODER PRODUCES AN ANALOG OUTPUT THEREFROM WHICH IS A FUNCTION OF THE DEGREE OF IDENTITY BETWEEN THE CONTENTS OF THE SHIFT REGISTER AND THE CHARACTER WITH WHICH THE DECODER IS ASSOCIATED, INDIVIDUAL STORAGE MEANS TO STORE THE ANALOG LEVEL OUTPUTS OF EACH OF SAID DECODERS, THRESHOLD DETECTOR MEANS RESPONSIVE TO ONE OF THE ANALOG LEVELS EXCEEDING A PREDETERMINED LEVEL, AND MEANS CONTROLLED BY THE THRESHOLD DETECTOR MEANS FOR SAMPLING SAID STORAGE MEANS TO SELECT ONE OF THE SAID ANALOG LEVELS HAVING A PREDETERMINED RELATION TO THE REMAINDER THEREOF, SAID SELECTED LEVEL IDENTIFYING THE SCANNED CHARACTER.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |