Rotatable raster scan display

Details Rotatable raster scan display Rotatable raster scan display

G - Physics

09

G

375/15

G09G 1/00 (2006.01) G06F 1/16 (2006.01) G09G 1/04 (2006.01)

Patent

CA 1136301

ROTATABLE RASTER SCAN DISPLAY ABSTRACT OF THE DISCLOSURE Apparatus for rotating a cathode ray tube (CRT) which is operated as a graphic display through 90 degrees such that different size pages of data may be displayed while minimizing the control circuitry required. The display deflection yoke is fixedly attached to a support frame for the display. The CRT is rotatably mounted within the yoke and held by an annular thrust bearing which allows the CRT to be rotated 90 degrees. A switch is actuated by the rotation of the CRT to select between sets of control resistors to control the raster scan of the CRT in accordance with its orientation. AT9-78-033

352842

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