Address producing circuit for zoom function

Details Address producing circuit for zoom function Address producing circuit for zoom function

1989-07-11

1992-04-21

Weldon, Ulysses

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340723, 358180, 382 47, G09G 106

Patent

active

051072548

ABSTRACT:
Disclosed is an address producing circuit for zoom function in which horizontal and vertical addresses are to make more free selection of a partial picture around a plurality of locations disposed on a screen of a monitor device, and image data stored in a predetermined address region according to the selection is read out to display on the screen, so that the picture of the selected partial region can be magnified to a whole screen picture.

REFERENCES:
patent: 4754270 (1988-06-01), Murauchi
patent: 4757311 (1988-07-01), Nakamura et al.
patent: 4774581 (1988-09-01), Shiratsuchi
patent: 4821031 (1989-04-01), Roberts
patent: 4952923 (1990-08-01), Tamura

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