Patent US3240872A successfully refreshed from Google Patents.
US3240872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scan control apparatus for character recognition devices
Assignee: Unisys Corp
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Filing: 1961-08-28
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Granted: 1966-03-15
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Matthew J Relis
- 👤 Carl M Mengani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:18
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/30; H04N3/32; G; G06; G06V; G06V10/00; G06V10/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
SCAN CONTROL APPARATUS FOR DEVICES TO READ RECORD MEDIA CONTAINING RECORDED INFORMATION COMPRISING, MEANS FOR PRODUCING A BEAM OF RADIANT ENERGY, DEFLECTION MEANS FOR DISPLACING SAID BEAM TO SCAN SAID RECORD MEDIA IN A SERIES OF SUCCESSIVE SCANS, SENSING MEANS FOR GENERATING A SIGNAL WHEN SAID BEAM IMPINGES SAID RECORDED INFORMATION, CONTROL MEANS FOR EFFECTING A FIRST AND A SECOND SCANNING RATE, AND CIRCUIT MEANS RESPONSIVE TO SAID SIGNAL TO ACTUATE SAID CONTROL MEANS TO EFFECT SAID SECOND SCANNING RATE, SAID CIRCUIT MEANS INCLUDING MEANS TO DELAY THE ACTUATION OF SAID CONTROL MEANS FOR A PLURALITY OF SCANS SUBSEQUENT TO THE FIRST SENSING OF SAID RECORDED INFORMATION, AND THEREAFTER TO ACTUATE SAID CONTROL MEANS TO EFFECT SAID SECOND SCANNING RATE AT THE FIRST ENCOUNTER OF SAID RECORDED INFORMATION DURING EACH SCAN SUBSEQUENT TO SAID DELAY PERIOD, AND SAID CIRCUIT MEANS BEING OPERATIVE TO MAINTAIN SAID SECOND SCANNING RATE FOR A PREDETERMINED DISPLACEMENT OF SAID RECORDED INFORMATION WITH RESPECT TO SAID BEAM.
Claim 2
Dependent Claim
161 words
SCAN CONTROL APPARATUS FOR DEVICES TO READ RECORD MEDIA CONTAINING RECORDED INFORMATION COMPRISING, MEANS FOR PRODUCING A BEAM OF RADIANT ENERGY, DEFLECTION MEANS FOR DISPLACING SAID BEAM TO SCAN SAID RECORD MEDIA IN A SERIES OF SUCCESSIVE SCANS, SENSING MEANS FOR GENERATING A SIGNAL WHEN SAID BEAM IMPINGES SAID RECORDED INFORMATION, CONTROL MEANS FOR EFFECTING A FIRST AND A SECOND SCANNING RATE, AND CIRCUIT MEANS RESPONSIVE TO SAID SIGNAL TO ACTUATE SAID CONTROL MEANS TO EFFECT SAID SECOND SCANNING RATE, SAID CIRCUIT MEANS INCLUDING MEANS TO DELAY THE ACTUATION OF SAID CONTROL MEANS FOR A PLURALITY OF SCANS SUBSEQUENT TO THE FIRST SENSING OF SAID RECORDED INFORMATION, AND THEREAFTER TO ACTUATE SAID CONTROL MEANS TO EFFECT SAID SECOND SCANNING RATE AT THE FIRST ENCOUNTER OF SAID RECORDED INFORMATION DURING EACH SCAN SUBSEQUENT TO SAID DELAY PERIOD, AND SAID CIRCUIT MEANS BEING OPERATIVE TO MAINTAIN SAID SECOND SCANNING RATE FOR A PREDETERMINED DISPLACEMENT OF SAID RECORDED INFORMATION WITH RESPECT TO SAID BEAM.
Claim 3
Dependent Claim
154 words
SCAN CONTROL APPARATUS FOR DEVICES TO READ RECORD MEDIA CONTAINING CHARACTERS COMPRISING , MEANS FOR PRODUCING A BEAM OF RADIANT ENERGY TO IMPINGE SAID RECORD MEDIA, DEFLECTION MEANS FOR DISPLACING SAID BEAM TO PRODUCE A SERIES OF SUCCESSIVE SCANS, SENSING MEANS TO GENERATE A SIGNAL WHEN SAID BEAM IMPINGES A CHARACTER, CONTROL MEANS OPERATIVE TO SWITCH THE SCANNING RATE OF SAID DEFLECTION MEANS FROM FAST TO SLOW AND VICE VERSA, CIRCUIT MEANS RESPONSIVE TO SAID SIGNAL DERVIED FROM SAID BEAM AND OPERATIVE TO ACTUATE SAID CONTROL MEANS TO SWITCH FROM FAST TO SLOW SCAN WHEN A CHARACTER IS SENSED, AND MEANS TRANSMITTING TO SAID CONTROL MEANS A REPRESENTATION OF THE DISPLACEMENT OF SAID BEAM, AND CONTROL MEANS OPERATIVE IN RESPONSE TO SAID REPRESENTATION TO RESTORE SAID BEAM TO SAID FAST SCANNING RATE AFTER SAID BEAM AND SAID CHARACTER HAVE BEEN DISPLACED WITH RESPECT TO EACH OTHER A PREDETERMINED DISTANCE AT SAID SLOW SCANNING RATE.
Claim 4
Dependent Claim
154 words
SCAN CONTROL APPARATUS FOR DEVICES TO READ RECORD MEDIA CONTAINING CHARACTERS COMPRISING , MEANS FOR PRODUCING A BEAM OF RADIANT ENERGY TO IMPINGE SAID RECORD MEDIA, DEFLECTION MEANS FOR DISPLACING SAID BEAM TO PRODUCE A SERIES OF SUCCESSIVE SCANS, SENSING MEANS TO GENERATE A SIGNAL WHEN SAID BEAM IMPINGES A CHARACTER, CONTROL MEANS OPERATIVE TO SWITCH THE SCANNING RATE OF SAID DEFLECTION MEANS FROM FAST TO SLOW AND VICE VERSA, CIRCUIT MEANS RESPONSIVE TO SAID SIGNAL DERVIED FROM SAID BEAM AND OPERATIVE TO ACTUATE SAID CONTROL MEANS TO SWITCH FROM FAST TO SLOW SCAN WHEN A CHARACTER IS SENSED, AND MEANS TRANSMITTING TO SAID CONTROL MEANS A REPRESENTATION OF THE DISPLACEMENT OF SAID BEAM, AND CONTROL MEANS OPERATIVE IN RESPONSE TO SAID REPRESENTATION TO RESTORE SAID BEAM TO SAID FAST SCANNING RATE AFTER SAID BEAM AND SAID CHARACTER HAVE BEEN DISPLACED WITH RESPECT TO EACH OTHER A PREDETERMINED DISTANCE AT SAID SLOW SCANNING RATE.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |