US3305835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zoning circuits for a character reader
Assignee: RCA Corp
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Filing: 1964-08-28
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Granted: 1967-02-21
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 John P Beltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/14; G06V30/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A CHARACTER READER FOR READING CHARACTERS FROM A DOCUMENT, SAID CHARACTERS BEING FORMED OF ONE OR MORE DISTINCTIVE FEATURES OCCURRING IN A PLURALITY OF SECTIONS IN SAID CHARACTERS, SAID SYSTEM INCLUDING MEANS FOR SCANNING EACH CHARACTER TO DERIVE SIGNALS SERIALLY REPRESENTING THE FEATURES OF SAID CHARACTER, THE COMBINATION COMPRISING, MEANS COUPLED TO SAID SCANNING MEANS FOR DETECTING A PREDETERMINED FEATURE IN A CHARACTER, MEANS FOR STARTING THE DIVSION OF THE AREA ON SAID DOCUMENT ENCOMPASSING SAID CHARACTER INTO A PREDETERMINED NUMBER OF SUBSTANTIALLY EQUAL VERTICAL SECTIONS BEGINNING AT A FIRST SECTION WHEN SAID PREDETERMINED FEATURE IS DETECTED IN A SCAN LINE, AND MEANS FOR RESTARTING THE DIVISION OF SAID AREA INTO SAID PREDETERMINED NUMBER OF VERTICAL SECTIONS BEGINNING WHEN SAID PREDETERMINED FEATURE IS REDETECTED IN A SECTION OF A SUCCEEDING SCAN LINE DIFFERING FROM SAID FIRST SECTION.
Claim 2
Dependent Claim
138 words
IN A CHARACTER READER FOR READING CHARACTERS FROM A DOCUMENT, SAID CHARACTERS BEING FORMED OF ONE OR MORE DISTINCTIVE FEATURES OCCURRING IN A PLURALITY OF SECTIONS IN SAID CHARACTERS, SAID SYSTEM INCLUDING MEANS FOR SCANNING EACH CHARACTER TO DERIVE SIGNALS SERIALLY REPRESENTING THE FEATURES OF SAID CHARACTER, THE COMBINATION COMPRISING, MEANS COUPLED TO SAID SCANNING MEANS FOR DETECTING A PREDETERMINED FEATURE IN A CHARACTER, MEANS FOR STARTING THE DIVSION OF THE AREA ON SAID DOCUMENT ENCOMPASSING SAID CHARACTER INTO A PREDETERMINED NUMBER OF SUBSTANTIALLY EQUAL VERTICAL SECTIONS BEGINNING AT A FIRST SECTION WHEN SAID PREDETERMINED FEATURE IS DETECTED IN A SCAN LINE, AND MEANS FOR RESTARTING THE DIVISION OF SAID AREA INTO SAID PREDETERMINED NUMBER OF VERTICAL SECTIONS BEGINNING WHEN SAID PREDETERMINED FEATURE IS REDETECTED IN A SECTION OF A SUCCEEDING SCAN LINE DIFFERING FROM SAID FIRST SECTION.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |