Printing device with compressed text data memory

Details Printing device with compressed text data memory Printing device with compressed text data memory

1987-12-30

1990-02-13

Clark, David L.

Boots, shoes, and leggings

400 3, 341 90, G06F 500

Patent

active

049012487

ABSTRACT:
A printing device with a data memory efficiently stores character code data and other attribute data in a limited memory region. If a character code of a print data input from the keyboard is a space code, the print data is nullified, and a pitch data corresponding to the space code is added to the pitch data corresponding to the character code previously stored in a correction memory. Namely, the data are compressed. Since only the print data excepting the space code data is stored in the memory, the limited memory region is efficiently used.

REFERENCES:
patent: 4054951 (1977-10-01), Jackson et al.
patent: 4458333 (1984-07-01), Smith
patent: 4467363 (1984-08-01), Tench, Jr.
patent: 4597057 (1986-06-01), Snow
patent: 4641263 (1987-02-01), Perlman et al.
patent: 4701745 (1987-10-01), Waterworth

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