Patent US1577722A successfully refreshed from Google Patents.
US3099090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for digital indication of shaft position
Assignee: Continental Elektronidustrie AG
•
Filing: 1960-06-17
•
Granted: 1963-07-30
•
Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Frisch Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:13
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/02; H; H03; H03M; H03M1/00; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A METHOD OF PERIODICALLY PRODUCING AN INDICATION OF THE INSTANTANEOUS VALUE OF A PHASE ANGLE BETWEEN A REFERENCE VOLTAGE OF FIXED PHASE AND A SIGNAL VOLTAGE OF PHASE AND RATE OF CHANGE OF PHASE CHANGING WITH TIME THE STEPS OF INITIATING A SERIES OF PULSES UPON OCCURRENCE OF A FIXED POINT IN EACH OF WIDELY AND EQUALLY SPACED CYCLES OF THE REFERENCE VOLTAGE, TERMINATING EACH SUCH SERIES OF PULSES UPON THE NEXT OCCURRENCE OF A FIXED POINT OF THE SIGNAL VOLTAGE CYCLE, PRODUCING INDICATIONS OF THE NUMBER OF PULSES, IN EACH SUCH SERIES, GENERATING, IN ASSOCIATION WITH EACH SUCH SERIES SO PERIODICALLY GENERATED, A SECOND SERIES OF PULSES OF A NUMBER AT LEAST PARTIALLY RESPONSIVE TO THE PHASE OF THE SIGNAL VOLTAGE AT A TIME DIFFERING FROM THE TIME OF INITIATION OF EACH SUCH FIRST SERIES BY AN INTERVAL MUCH SMALLER THAN THE INTERVAL OF SUCH PERIODICITY, AND PRODUCING INDICATIONS OF THE NUMBER OF PULSES IN EACH OF SAID SECOND SERIES OF PULSES, WHEREBY ERRORS DUE TO CHANGE OF PHASE OF THE SIGNAL VOLTAGE DURING EACH FIRST SERIES OF
Claim 2
Dependent Claim
180 words
IN A METHOD OF PERIODICALLY PRODUCING AN INDICATION OF THE INSTANTANEOUS VALUE OF A PHASE ANGLE BETWEEN A REFERENCE VOLTAGE OF FIXED PHASE AND A SIGNAL VOLTAGE OF PHASE AND RATE OF CHANGE OF PHASE CHANGING WITH TIME THE STEPS OF INITIATING A SERIES OF PULSES UPON OCCURRENCE OF A FIXED POINT IN EACH OF WIDELY AND EQUALLY SPACED CYCLES OF THE REFERENCE VOLTAGE, TERMINATING EACH SUCH SERIES OF PULSES UPON THE NEXT OCCURRENCE OF A FIXED POINT OF THE SIGNAL VOLTAGE CYCLE, PRODUCING INDICATIONS OF THE NUMBER OF PULSES, IN EACH SUCH SERIES, GENERATING, IN ASSOCIATION WITH EACH SUCH SERIES SO PERIODICALLY GENERATED, A SECOND SERIES OF PULSES OF A NUMBER AT LEAST PARTIALLY RESPONSIVE TO THE PHASE OF THE SIGNAL VOLTAGE AT A TIME DIFFERING FROM THE TIME OF INITIATION OF EACH SUCH FIRST SERIES BY AN INTERVAL MUCH SMALLER THAN THE INTERVAL OF SUCH PERIODICITY, AND PRODUCING INDICATIONS OF THE NUMBER OF PULSES IN EACH OF SAID SECOND SERIES OF PULSES, WHEREBY ERRORS DUE TO CHANGE OF PHASE OF THE SIGNAL VOLTAGE DURING EACH FIRST SERIES OF
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |