Proportional spacing display apparatus

Details Proportional spacing display apparatus Proportional spacing display apparatus

1987-09-04

1989-09-05

Pellinen, A. D.

Boots, shoes, and leggings

340750, 340748, G06F 15626

Patent

active

048645184

ABSTRACT:
A proportional spacing display apparatus for displaying characters on a display screen with spacings corresponding to types of character. One character display cycle comprises a half cycle for reading character data from a video memory and a half cycle for rewriting the character data in the video memory. The character data reading half cycle has a fixed time period necessary for data reading, while the character data rewriting half cycle has a time period variable with character widths.

REFERENCES:
patent: 3267454 (1966-08-01), Schaff
patent: 3281822 (1966-10-01), Evans
patent: 3588873 (1971-06-01), Osborne et al.
patent: 3754229 (1973-08-01), Manber
patent: 3952296 (1976-04-01), Bates
patent: 4348738 (1982-09-01), Grier et al.
patent: 4555763 (1985-11-01), Dahme

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