Patent US3248524A successfully refreshed from Google Patents.
US3248524A
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Assignee: Unisys Corp
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Filing: 1962-06-04
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Granted: 1966-04-26
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Expires: 1982-06-04
Abstract
No abstract record available.
Inventors
- 👤 Medford D Sanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:06
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/01; G06K7/015; G06K13/00; G06K13/02; G06K13/06; G06K13/067; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A SYSTEM FOR DETERMINING THE ATTITUDE OF A DOCUMENT TRAVELING IN A DOCUMENT WAY WHICH COMPRISES: (A) SENSING MEANS FOR GENERTING A FUNCTION WHICH VARIES IN AMPLITUDE IN ACCORDANCE WITH THE VARIATION IN SPACING BETWEEN AN EDGE OF A DOCUMENT RELATIVE TO A FIXED POINT ALONG SAID WAY, (B) A COMPARISON CIRCUIT CONNECTED TO SAID SENSING MEANS FOR COMPARING AN EARLY AND A LATE VALUE OF SAID FUNCTION TO GENERATE A CIRCUIT CONDITION PROPORTIONAL TO VARIATION IN SAID FUNCTIONS, (C) OUTPUT MEANS FOR GENERATING AN OUTPUT FUNCTION IN RESPONSE TO SAID CIRCUIT CONDITION, AND (D) CONTROL MEANS RESPONSIVE TO SAID COMPARISON CIRCUIT FOR INHIBITING SAID OUTPUT MEANS EXCEPT WHEN IN A PRESET INTERVAL DURING TRAVEL OF SAID DOCUMENT PAST SAID POINT, SAID FUNCTION VARIES IN AMPLITUDE MORE THAN A PREDETERMINED AMOUNT.
Claim 2
Independent Claim
131 words
A SYSTEM FOR DETERMINING THE ATTITUDE OF A DOCUMENT TRAVELING IN A DOCUMENT WAY WHICH COMPRISES: (A) SENSING MEANS FOR GENERTING A FUNCTION WHICH VARIES IN AMPLITUDE IN ACCORDANCE WITH THE VARIATION IN SPACING BETWEEN AN EDGE OF A DOCUMENT RELATIVE TO A FIXED POINT ALONG SAID WAY, (B) A COMPARISON CIRCUIT CONNECTED TO SAID SENSING MEANS FOR COMPARING AN EARLY AND A LATE VALUE OF SAID FUNCTION TO GENERATE A CIRCUIT CONDITION PROPORTIONAL TO VARIATION IN SAID FUNCTIONS, (C) OUTPUT MEANS FOR GENERATING AN OUTPUT FUNCTION IN RESPONSE TO SAID CIRCUIT CONDITION, AND (D) CONTROL MEANS RESPONSIVE TO SAID COMPARISON CIRCUIT FOR INHIBITING SAID OUTPUT MEANS EXCEPT WHEN IN A PRESET INTERVAL DURING TRAVEL OF SAID DOCUMENT PAST SAID POINT, SAID FUNCTION VARIES IN AMPLITUDE MORE THAN A PREDETERMINED AMOUNT.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |