US3229280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code converter
Assignee: AT&T Inc
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Filing: 1962-05-14
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Granted: 1966-01-11
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Daryl M Chapin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:27
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/26; H03M1/06; H03M1/08; H03M1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A CODE CONVERTER COMPRISING A CODE MASK HAVING A PLURALITY OF N SENSING AREAS EACH EXHIBITING AT LEAST TWO DISTINCT CHARACTERISTICS, WHERE N IS A SELECTED POSITIVE INTEGER, SAID AREAS BEING SELECTIVELY ARRANGED IN SIZE AND POSITION TO PERMIT TIME-VARIABLE INFORMATION REPRESENTED BY AN INCOMING SIGNAL APPLIED TO SAID CODE MASK TO BE CONVERTED INTO A PREDETERMINED REFLECTED BINARY CODE HAVING 2N DIGITS IN EACH CODE WORD, AND MEANS FOR SCANNING SAID CODE MASK TO DERIVE FROM EACH OF SAID N SENSING AREAS A CORRESPONDING GROUP OF TWO CODE SIGNALS REPRESENTATIVE OF SAID TIME-VARIABLE INFORMATION SO THAT SAID TIME-VARIABLE INFORMATION IS REPRESENTED BY 2N CODE SIGNALS CORRESPONDING TO SAID 2N DIGITS IN EACH CODE WORD, WHEREIN SAID TWO CODE SIGNALS IN EACH GROUP ARE DERIVED FROM TWO DISTINCT POINTS IN SAID CORRESPONDING SENSING AREA, AND WHEREIN THE MOST SIGNIFICANT GROUP OF TWO CODE SIGNALS ARE DERIVED FROM TWO POINTS WHICH ARE SPACED APART A DISTANCE APPROXIMATELY EQUAL TO ONE-HALF THE LARGEST DIMENSION OF THAT ONE OF SAID TWO DISTINCT CHARACTERISTICS OF SAID SENSING AREAS WHICH IS REPRESENTATIVE OF THE MOST SIGNIFICANT ELEMENT OF SAID CODE.
Claim 2
Dependent Claim
185 words
A CODE CONVERTER COMPRISING A CODE MASK HAVING A PLURALITY OF N SENSING AREAS EACH EXHIBITING AT LEAST TWO DISTINCT CHARACTERISTICS, WHERE N IS A SELECTED POSITIVE INTEGER, SAID AREAS BEING SELECTIVELY ARRANGED IN SIZE AND POSITION TO PERMIT TIME-VARIABLE INFORMATION REPRESENTED BY AN INCOMING SIGNAL APPLIED TO SAID CODE MASK TO BE CONVERTED INTO A PREDETERMINED REFLECTED BINARY CODE HAVING 2N DIGITS IN EACH CODE WORD, AND MEANS FOR SCANNING SAID CODE MASK TO DERIVE FROM EACH OF SAID N SENSING AREAS A CORRESPONDING GROUP OF TWO CODE SIGNALS REPRESENTATIVE OF SAID TIME-VARIABLE INFORMATION SO THAT SAID TIME-VARIABLE INFORMATION IS REPRESENTED BY 2N CODE SIGNALS CORRESPONDING TO SAID 2N DIGITS IN EACH CODE WORD, WHEREIN SAID TWO CODE SIGNALS IN EACH GROUP ARE DERIVED FROM TWO DISTINCT POINTS IN SAID CORRESPONDING SENSING AREA, AND WHEREIN THE MOST SIGNIFICANT GROUP OF TWO CODE SIGNALS ARE DERIVED FROM TWO POINTS WHICH ARE SPACED APART A DISTANCE APPROXIMATELY EQUAL TO ONE-HALF THE LARGEST DIMENSION OF THAT ONE OF SAID TWO DISTINCT CHARACTERISTICS OF SAID SENSING AREAS WHICH IS REPRESENTATIVE OF THE MOST SIGNIFICANT ELEMENT OF SAID CODE.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |