US3132338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial digitizer
Assignee: General Precision Inc
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Filing: 1960-10-14
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Granted: 1964-05-05
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Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Schmid Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/25; H; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
AN ELECTRONIC PARTIAL DIGITIZER FOR CONVERTING AN INPUT VOLTAGE INTO OUTPUT ANALOG AND DIGITAL SIGNALS TOGETHER COMMENSURATE WITH SAID INPUT VOLTAGE, COMPRISING IN COMBINATION: A BI-DIRECTIONAL LIMITER CIRCUIT TO WHICH ARE APPLIED SAID INPUT VOLTAGE, A FEEDBACK VOLTAGE, AND UPPER AND LOWER LIMIT REFERENCE VOLTAGES, SAID LIMITER CIRCUIT BEING OPERABLE TO ESTABLISH AN ANALOG OUTPUT POTENTIAL COMMENSURATE WITH THE DIFFERENCE BETWEEN SAID INPUT VOLTAGE AND SAID FEEDBACK VOLTAGE AT AN OUTPUT TERMINAL WHENEVER SAID DIFFERENCE LIES BETWEEN SAID UPPER AND LOWER LIMIT REFERENCE VOLTAGES, AND BEING OPERABLE TO ESTABLISH A SWITCHING CONTROL POTENTIAL OF FIRST OR SECOND POLARITY WITH RESPECT TO A REFERENCE LEVEL WHENEVER SAID DIFFERENCE EXCEEDS ONE OR THE OTHER OF SAID LIMIT REFERENCE VOLTAGES; AN ELECTRONIC DIGITAL REGISTER HAVING A PLURALITY OF STAGES; THE STATES OF SAID STAGES REPRESENTING SAID OUTPUT DIGITAL SIGNAL; GATING MEANS CONTROLLED BY THE PRESENCE OF SAID SWITCHING CONTROL POTENTIAL FOR CHANGING THE STATE OF SAID REGISTER IN A DIRECTION DEPENDENT UPON THE POLARITY OF SAID SWITCHING CONTROL POTENTIAL; AND A DIGITAL-TO-ANALOG CONVERTER CIRCUIT CONNECTED TO SAID REGISTER TO PROVIDE SAID FEEDBACK VOLTAGE.
Claim 2
Dependent Claim
180 words
AN ELECTRONIC PARTIAL DIGITIZER FOR CONVERTING AN INPUT VOLTAGE INTO OUTPUT ANALOG AND DIGITAL SIGNALS TOGETHER COMMENSURATE WITH SAID INPUT VOLTAGE, COMPRISING IN COMBINATION: A BI-DIRECTIONAL LIMITER CIRCUIT TO WHICH ARE APPLIED SAID INPUT VOLTAGE, A FEEDBACK VOLTAGE, AND UPPER AND LOWER LIMIT REFERENCE VOLTAGES, SAID LIMITER CIRCUIT BEING OPERABLE TO ESTABLISH AN ANALOG OUTPUT POTENTIAL COMMENSURATE WITH THE DIFFERENCE BETWEEN SAID INPUT VOLTAGE AND SAID FEEDBACK VOLTAGE AT AN OUTPUT TERMINAL WHENEVER SAID DIFFERENCE LIES BETWEEN SAID UPPER AND LOWER LIMIT REFERENCE VOLTAGES, AND BEING OPERABLE TO ESTABLISH A SWITCHING CONTROL POTENTIAL OF FIRST OR SECOND POLARITY WITH RESPECT TO A REFERENCE LEVEL WHENEVER SAID DIFFERENCE EXCEEDS ONE OR THE OTHER OF SAID LIMIT REFERENCE VOLTAGES; AN ELECTRONIC DIGITAL REGISTER HAVING A PLURALITY OF STAGES; THE STATES OF SAID STAGES REPRESENTING SAID OUTPUT DIGITAL SIGNAL; GATING MEANS CONTROLLED BY THE PRESENCE OF SAID SWITCHING CONTROL POTENTIAL FOR CHANGING THE STATE OF SAID REGISTER IN A DIRECTION DEPENDENT UPON THE POLARITY OF SAID SWITCHING CONTROL POTENTIAL; AND A DIGITAL-TO-ANALOG CONVERTER CIRCUIT CONNECTED TO SAID REGISTER TO PROVIDE SAID FEEDBACK VOLTAGE.
References Cited (Backward Citations)
US2754503A
Cited
US2940306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |