Dot image character generator employing a font memory

Details Dot image character generator employing a font memory Dot image character generator employing a font memory

1985-12-26

1989-07-11

Harkcom, Gary V.

Boots, shoes, and leggings

340723, 340799, G09G 116

Patent

active

048477877

ABSTRACT:
A character generator, comprising: a font memory for storing dot patterns of fonts; a first-in first-out memory for loading dot pattern data in unit of one byte successively, which generates a load request signal when the memory has empty spaces; an input control unit for accessing a dot pattern of a font to be printed and for transmitting a dot array data of one byte to the first-in first-out memory when the load request signal is received; and an output control unit for sending an output request signal to the first-in first-out memory to receive dot array data from the first-in first-out memory, and for transmitting the dot array data to a dot-image printer synchronously with a load request signal from the dot-image printer.

REFERENCES:
patent: 4345244 (1982-08-01), Greer et al.
patent: 4559615 (1985-12-01), Goo et al.
patent: 4613945 (1986-09-01), Parker
patent: 4622546 (1986-11-01), Sfarfi et al.
patent: 4646259 (1987-02-01), Lincoln et al.
patent: 4675830 (1987-06-01), Hawkins

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