Raster distortion correcting signal synthesizer

Details Raster distortion correcting signal synthesizer Raster distortion correcting signal synthesizer

1992-03-09

1994-03-15

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, G09G 104, H01J 2970

Patent

active

052948668

ABSTRACT:
A raster distortion correcting signal synthesizer includes a multiplier, an adder, a memory for storing data and a coefficient, and a controller for controlling the multiplier, adder and memory in accordance with a count value of a horizontal sync. signal. The controller calculates a desired raster distortion correcting signal of a high order by utilizing the multiplier and adder on the basis of the count value, and multiplies the count value by a predetermined coefficient to obtain a new count value.

REFERENCES:
patent: 3501669 (1970-03-01), Henderson
patent: 4689526 (1987-08-01), Schweer
patent: 5013978 (1991-05-01), Macauley

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