US3123818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional quantizer
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; F; F41; F41G; F41G3/00; F41G3/14; F41G3/147; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/24; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/30; H03M1/303; H03M1/305; H03M1/48; H03M1/485; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
IN A DIGITAL COMPUTER WHICH INCLUDES A BIDIRECTIONAL DIGITAL QUANTIZER FOR PRODUCING ELECTRICAL OUTPUT SIGNALS REPRESENTATIVE OF INCREMENTAL CHANGES IN THE POSITION OF A SHAFT AND THE SENSE OF THE CHANGES, THE COMBINATION COMPRISING: A PATTERNED DISK OF FERROMAGNETIC MATERIAL COUPLED TO THE SHAFT AND ROTATABLE THEREWITH, SAID PATTERN INCLUDING AREAS OF ALTERNATE STATES OF MAGNETIZATION; AN ELECTRONIC OSCILLATOR FOR GENERATING AN ALTERNATING CURRENT SIGNAL AT A PREDETERMINED FREQUENCY; A TUNED CIRCUIT CONNECTED TO SAID OSCILLATOR FOR RECEIVING SAID ALTERNATING CURRENT SIGNAL, SAID CIRCUIT INCLUDING A CAPACITOR AND AN INDUCTOR HAVING A FERROMAGNETIC CORE, SAID INDUCTOR BEING POSITIONED ADJACENT SAID DISK, SAID INDUCTOR EXHIBITING A FIRST REACTIVE IMPEDANCE TO SAID ALTERNATING CURRENT SIGNAL WHEN A PATTERN AREA OF SAID DISK IN A FIRST STATE OF MAGNETIZATION IS ADJACENT THE INDUCTOR AND A SECOND REACTIVE IMPEDANCE TO SAID ALTERNATING CURRENT SIGNAL WHEN A PATTERN AREA OF SAID DISK IN A SECOND STATE OF MAGNETIZATION IS ADJACENT SAID INDUCTOR; MEANS FOR VARYING THE REACTANCE OF SAID TUNED CIRCUIT; AND MEANS RESPONSIVE TO THE VOLTAGE ACROSS SAID INDUCTOR FOR GENERATING OUTPUT SIGNALS REPRESENTATIVE OF THE POSITION OF SAID DISK RELATIVE TO SAID INDUCTOR.
Claim 2
Dependent Claim
190 words
IN A DIGITAL COMPUTER WHICH INCLUDES A BIDIRECTIONAL DIGITAL QUANTIZER FOR PRODUCING ELECTRICAL OUTPUT SIGNALS REPRESENTATIVE OF INCREMENTAL CHANGES IN THE POSITION OF A SHAFT AND THE SENSE OF THE CHANGES, THE COMBINATION COMPRISING: A PATTERNED DISK OF FERROMAGNETIC MATERIAL COUPLED TO THE SHAFT AND ROTATABLE THEREWITH, SAID PATTERN INCLUDING AREAS OF ALTERNATE STATES OF MAGNETIZATION; AN ELECTRONIC OSCILLATOR FOR GENERATING AN ALTERNATING CURRENT SIGNAL AT A PREDETERMINED FREQUENCY; A TUNED CIRCUIT CONNECTED TO SAID OSCILLATOR FOR RECEIVING SAID ALTERNATING CURRENT SIGNAL, SAID CIRCUIT INCLUDING A CAPACITOR AND AN INDUCTOR HAVING A FERROMAGNETIC CORE, SAID INDUCTOR BEING POSITIONED ADJACENT SAID DISK, SAID INDUCTOR EXHIBITING A FIRST REACTIVE IMPEDANCE TO SAID ALTERNATING CURRENT SIGNAL WHEN A PATTERN AREA OF SAID DISK IN A FIRST STATE OF MAGNETIZATION IS ADJACENT THE INDUCTOR AND A SECOND REACTIVE IMPEDANCE TO SAID ALTERNATING CURRENT SIGNAL WHEN A PATTERN AREA OF SAID DISK IN A SECOND STATE OF MAGNETIZATION IS ADJACENT SAID INDUCTOR; MEANS FOR VARYING THE REACTANCE OF SAID TUNED CIRCUIT; AND MEANS RESPONSIVE TO THE VOLTAGE ACROSS SAID INDUCTOR FOR GENERATING OUTPUT SIGNALS REPRESENTATIVE OF THE POSITION OF SAID DISK RELATIVE TO SAID INDUCTOR.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |