Patent US3378720A successfully refreshed from Google Patents.
US3378720A
Expired / Lapsed
US
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Electron beam deflection speed-up circuit
Assignee: Unisys Corp
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Filing: 1966-04-01
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Granted: 1968-04-16
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Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Melvin V Duerr
- 👤 Mauritz L Granberg
- 👤 Jerome J Stoffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:07
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/04; H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64; H03K4/00; H03K4/02; H03K4/026; H03K6/00; H04; H04N; H04N3/00; H04N3/10; H04N3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN AN ELECTRON BEAM DEFLECTION CIRCUIT INCLUDING A DEFLECTION COIL HAVING FIRST AND SECOND TERMINALS, A FIRST SOURCE OF POTENTIAL COUPLED TO SAID FIRST TERMINAL OF SAID DEFLECTION COIL, AN AMPLIFIER COUPLED TO SAID SECOND TERMINAL OF SAID DEFLECTION COIL AND MEANS CONNECTED TO SAID AMPLIFIER FOR CAUSING STEP VARIATIONS OF CURRENT TO FLOW THROUGH SAID COIL FOR POINT-TO-POINT TRACING BY SAID ELECTRON BEAM AND FOR CAUSING THE MAGNITUDE OF SAID STEP VARIATIONS TO INCREASE FOR MAP AND VECTOR TRACING, THE IMPROVEMENT COMPRISING A BEAM SPEED-UP CIRCUIT FOR SAID MAP AND VECTOR TRACING, SAID SPEED-UP CIRCUIT COMPRISING: (A) A SECOND SOURCE OF POTENTIAL HAVING A MAGNITUDE GREATER THAN SAID FIRST SOURCE OF POTENTIAL,
Claim 2
Dependent Claim
113 words
IN AN ELECTRON BEAM DEFLECTION CIRCUIT INCLUDING A DEFLECTION COIL HAVING FIRST AND SECOND TERMINALS, A FIRST SOURCE OF POTENTIAL COUPLED TO SAID FIRST TERMINAL OF SAID DEFLECTION COIL, AN AMPLIFIER COUPLED TO SAID SECOND TERMINAL OF SAID DEFLECTION COIL AND MEANS CONNECTED TO SAID AMPLIFIER FOR CAUSING STEP VARIATIONS OF CURRENT TO FLOW THROUGH SAID COIL FOR POINT-TO-POINT TRACING BY SAID ELECTRON BEAM AND FOR CAUSING THE MAGNITUDE OF SAID STEP VARIATIONS TO INCREASE FOR MAP AND VECTOR TRACING, THE IMPROVEMENT COMPRISING A BEAM SPEED-UP CIRCUIT FOR SAID MAP AND VECTOR TRACING, SAID SPEED-UP CIRCUIT COMPRISING: (A) A SECOND SOURCE OF POTENTIAL HAVING A MAGNITUDE GREATER THAN SAID FIRST SOURCE OF POTENTIAL,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |