Patent US3752973A successfully refreshed from Google Patents.
US3752973A
Expired / Lapsed
US
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Apparatus for producing voltage functions
Assignee: Leybold Heraeus Verwaltung GmbH
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Filing: 1971-06-30
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Granted: 1973-08-14
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Expires: 1991-06-30
Abstract
Abstract An astable multivibrator applies periodically generated pulses to a frequency divider. The pulses from the frequency divider are decoded by a binary-to-decimal converter, and the outputs of the converter are applied to a plurality of potentiometers. The voltages from the movable contacts of the potentiometers are transmitted to a mixing amplifier which feeds an output amplifier. The output amplifier provides a signal to a deflection coil.
Inventors
- 👤 G Thorn
- 👤 J Sturmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:31
CPC Classifications
H; H03; H03K; H03K6/00; G; G06; G06G; G06G7/00; G06G7/12; G06G7/26; G06G7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
Apparatus for the production of voltage functions adjustable to curve configurations, in particular for the production of preset deflection functions for the deflection of an electron beam in a machining unit operated by an electron beam comprising, in combination, means for generating a plurality of rectangular pulses of constant amplitude in periodic succession; potentiometers receiving said pulses in order and attenuating said pulses between proportions of 0 and 100 percent, said potentiometers being linear sliding potentiometers; panel means for mounting said potentiometers, said potentiometers being adjustable through movable parts riding within parallel sliding slots, the positions of said sliding parts corresponding to the set curve configuration of the voltage function; and means for summing said attenuated pulses from said potentiometers for producing an output signal for a curve form corresponding to the settings of said potentiometers.
Claim 2
Dependent Claim
136 words
Apparatus for the production of voltage functions adjustable to curve configurations, in particular for the production of preset deflection functions for the deflection of an electron beam in a machining unit operated by an electron beam comprising, in combination, means for generating a plurality of rectangular pulses of constant amplitude in periodic succession; potentiometers receiving said pulses in order and attenuating said pulses between proportions of 0 and 100 percent, said potentiometers being linear sliding potentiometers; panel means for mounting said potentiometers, said potentiometers being adjustable through movable parts riding within parallel sliding slots, the positions of said sliding parts corresponding to the set curve configuration of the voltage function; and means for summing said attenuated pulses from said potentiometers for producing an output signal for a curve form corresponding to the settings of said potentiometers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |