Character generation

Details Character generation Character generation

1992-05-29

1998-01-13

Nguyen, Phu K.

G06F 1500

Patent

active

057087687

ABSTRACT:
A character generating system drives a printer engine to print characters in response to an instruction from a host computer. The characters to be printed by the printer information are normally generated on the basis of dot data stored in a cache memory via a print map memory under the control of e.g. a microprocessor. Since the cache memory is a volatile memory, its contents may be erased due to disconnetion of the power supply. In order to speed up the regeneration of the dot data in the cache memory, information relating to the dot data is stored in a non-volatile memory, and on reconnection of the power supply, that information is used together with vector information in a vector memory for regeneration of the dot data in the cache memory.

REFERENCES:
patent: 4954979 (1990-09-01), Eibner
patent: 5150459 (1992-09-01), Kajimoto
patent: 5179647 (1993-01-01), Chang
patent: 5189730 (1993-02-01), Kajimoto
patent: 5222207 (1993-06-01), Yamada

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