Voltage generator with self-contained performance monitor

Details Voltage generator with self-contained performance monitor Voltage generator with self-contained performance monitor

1978-12-22

1981-09-01

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

315370, 340724, 358 67, H01J 2956, H04N 924

Patent

active

042875064

ABSTRACT:
A system for the generation of a set of voltages, such as the X and Y coordinate voltages of a display or automated milling machine, includes a character generator and a character positioning circuit which, in turn, are responsive to digital control signals as are produced by a computer. A detector compares detection signals to reference signals at successive instants during the use of the system. The computer utilizes a learning routine in conjunction with voltage generation circuitry to develop the reference signals. The computer is programmed to provide specific values of the digital control signals at the times of the comparisons by the detector to detect any deviation of the magnitudes of the voltages of the deflection circuitry from the magnitudes attained during an initial alignment of the system.

REFERENCES:
patent: 3488483 (1970-01-01), Freedman
patent: 3510669 (1970-05-01), Peraza
patent: 3911360 (1975-10-01), Kimzey
patent: 3944737 (1976-03-01), Drax et al.
patent: 3976991 (1976-08-01), Hickin et al.
patent: 4016362 (1977-04-01), Bristow et al.
patent: 4027148 (1977-05-01), Rosenthal
patent: 4099092 (1978-07-01), Bristow
patent: 4159484 (1979-06-01), Strathman
patent: 4160981 (1979-07-01), Raney, Jr.

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