Thermal line printer

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G - Physics

06

K

314/41

G06K 15/02 (2006.01)

Patent

CA 1057813

PARTITIONED ROM AND DECODER THEREFOR ABSTRACT OF THE INVENTION Disclosed is a ROM/decoder combination advantageously utilized in a character generator. The ROM stores the repertoire of characters in a plurality of A x B cells. A multi-bit address word activates a unique one of the ROM partitions, and decode circuitry then effects serial readout. Preferably the first row-first column element in each of the selected partitions is serially read out, then the first row-second column element is read serially out, etc. For providing an N character per line output with each character represented in an A x B matrix, such as a thermal print dot matrix or an LED matrix, then the ROM is addressed A x B x N times. The decoders are one out of A and one out of B type decoders.

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