US3242478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resolution encoder
Assignee: Kollsman Instrument Corp
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Filing: 1961-11-29
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Granted: 1966-03-22
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Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Paul T Kaestner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:12
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A ROTARY DIGITAL ENCODER COMPRISING AN ENCODER DISC WITH A PLURALITY OF CHANNELS OF DIGITAL DATA IN CONCENTRIC ANNULAR ARRAY, FIRST AND SECOND OPTICAL MEANS AT PATHS ORIENTED THROUGH THE DISC DATA ARRAY AT 180* SEPARATION IN SYMMETRICAL RELATION AT THE RADIALLY OUTERMOST DATA CHANNEL POSITIONS, INDIVIDUAL PHOTO-SENSITIVE ELEMENTS ASSOCIATED WITH SAID FIRST AND SECOND OPTICAL MEANS RESPONSIVE TO LIGHT BEAMS THROUGH THE DISC DATA AND SAID PAIR OF OPTICAL MEANS FOR PRODUCING OUTPUT SIGNALS OF FREQUENCIES CORRESPONDING TO THE INTERCEPTED DATA, SAID FIRST OPTICAL MEANS INCLUDING PRISM MEANS FOR INVERTING THE LIGHT BEAMS WHICH PASS THERETHROUGH, AND MEANS FOR COMPARING THE SIGNALS OF SAID PHOTO-SENSITIVE ELEMENTS FOR GENERATING A SIGNAL INDICATIVE OF ANGULAR DISPLACEMENT OF SAID ROTARY ENCODER.
Claim 2
Dependent Claim
119 words
A ROTARY DIGITAL ENCODER COMPRISING AN ENCODER DISC WITH A PLURALITY OF CHANNELS OF DIGITAL DATA IN CONCENTRIC ANNULAR ARRAY, FIRST AND SECOND OPTICAL MEANS AT PATHS ORIENTED THROUGH THE DISC DATA ARRAY AT 180* SEPARATION IN SYMMETRICAL RELATION AT THE RADIALLY OUTERMOST DATA CHANNEL POSITIONS, INDIVIDUAL PHOTO-SENSITIVE ELEMENTS ASSOCIATED WITH SAID FIRST AND SECOND OPTICAL MEANS RESPONSIVE TO LIGHT BEAMS THROUGH THE DISC DATA AND SAID PAIR OF OPTICAL MEANS FOR PRODUCING OUTPUT SIGNALS OF FREQUENCIES CORRESPONDING TO THE INTERCEPTED DATA, SAID FIRST OPTICAL MEANS INCLUDING PRISM MEANS FOR INVERTING THE LIGHT BEAMS WHICH PASS THERETHROUGH, AND MEANS FOR COMPARING THE SIGNALS OF SAID PHOTO-SENSITIVE ELEMENTS FOR GENERATING A SIGNAL INDICATIVE OF ANGULAR DISPLACEMENT OF SAID ROTARY ENCODER.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |