Digital image correction device

Details Digital image correction device Digital image correction device

1992-08-27

1993-12-21

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315367, G09G 104, H01J 2970

Patent

active

052724212

ABSTRACT:
An image correction device includes a memory (70) for storing correction data, an address generator (15,31) for supplying addresses to the memory, a regulation pattern generator (40), a DA converter (71) for converting an output of the memory into an analog signal, convergence yoke (CY) coils (74), CY drive amplifiers (73) for converting the analog signal into current for driving the CY coils, a CPU (20) for controlling operation of the image correction device, deflection current detection circuits (10,11) for reading vertical and horizontal deflection currents in the CPU and a memory (60) for storing correction data and deflection currents.

REFERENCES:
patent: 4401922 (1983-08-01), Kamata et al.
patent: 4754204 (1988-06-01), Ando et al.
patent: 4799000 (1989-01-01), Close
patent: 4816908 (1989-03-01), Colineau et al.

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