Format reconfigurable CRT display

Details Format reconfigurable CRT display Format reconfigurable CRT display

1981-12-10

1985-11-05

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358237, 340727, 315368, H01J 2970, H01J 2976

Patent

active

045516570

ABSTRACT:
A CRT display is provided with a multiple-pole, double-throw switching mechanism, which in conjunction with alternate circuitry provides a means for easily reconfiguring the CRT display presentation. By operating the switches the normal left to right, the top to bottom raster scan may, for example, become a bottom to top, left to right raster scan. When applied to a multicolor CRT display, a second multiple-pole, double-throw switching mechanism serves, upon operation, to redirect beam convergence signals in compliance with the reconfigured format effected by switching the deflection signals.

REFERENCES:
patent: 2287307 (1942-06-01), Herbst
patent: 3435276 (1969-03-01), Sendelweck
patent: 4183063 (1980-01-01), Lewis
patent: 4267555 (1981-05-01), Boyd et al.

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