Electronic typographic apparatus

Details Electronic typographic apparatus Electronic typographic apparatus

1977-08-01

1979-02-20

Nusbaum, Mark E.

Boots, shoes, and leggings

340799, 364521, G06F 314

Patent

active

041410793

ABSTRACT:
A system for producing signals for proportional display of characters on a display device. The system utilizes a memory means for storing codes for a text and means for sequencing through the memory. The output of the memory which addresses (1) a character dot generator ROM and (2) a character width defining ROM. A shift register receives parallel inputs from the dot generator ROM and delivers a sequence of output levels to control the intensity of a display oscilloscope beam. Another shift register receives parallel inputs from the character width ROM (2) one input at a time, so that its output pulse occurs after the writing of the character is finished. Means is provided for applying the pulse output of the parallel input shift register to advance the character memory means to the next character to be displayed.

REFERENCES:
patent: 3711837 (1973-01-01), Smith et al.
patent: 3729714 (1973-04-01), Heard
patent: 3774161 (1973-11-01), Chambers
patent: 3878536 (1975-04-01), Gilliam
patent: 3896428 (1975-07-01), Williams
patent: 3928845 (1975-12-01), Clark
patent: 3952296 (1976-04-01), Bates
patent: 3952297 (1976-04-01), Stauffer et al.
patent: 4000486 (1976-12-01), Schomburg
patent: 4026555 (1977-03-01), Kirschner et al.

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