Image communication utilizing memory shared by multiple units

Details Image communication utilizing memory shared by multiple units Image communication utilizing memory shared by multiple units

1994-02-23

1998-03-10

Rogers, Scott A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

395115, 358442, 358444, 358468, H04N 121, G06K 1502

Patent

active

057271364

ABSTRACT:
A facsimile apparatus uses a single memory in a facsimile system and a printer system without using an interface between the two systems. In the facsimile apparatus, a FAX controller stores data received via a communication line. A recording control circuit fetches data from the memory via a data bus, and records an image based on the fetched data. A memory intervention circuit outputs a data bus selection signal, and switches an address of access to the recording medium and a connection of the data bus. Thus, a single memory is shared between a facsimile system and printer system.

REFERENCES:
patent: 4164787 (1979-08-01), Aranguren
patent: 4930017 (1990-05-01), Izawa
Derwent Publications Ltd., London, GB, AN 90-318490 & Patent Abstracts of Sweden, Bilaga till Svensk Patenttidning nr. 31, Jul. 20, 1990 & SE-A-8 900 132 (Televerket), Jul. 17, 1990.

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