Image reading apparatus

Details Image reading apparatus Image reading apparatus

1992-09-02

1995-01-17

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358404, 358409, 358487, H04N 100

Patent

active

053830318

ABSTRACT:
An image reading apparatus has a sensing unit to repeat a scanning on an original image with a predetermined time interval between scans so as to obtain a new set of image information data with each scan, a memory unit to store the image information data and a control unit which commands the memory unit to read the image information stored therein. The memory unit has two memory areas, and each of the two memory areas is alternately updated with each scan for storing a set of the image information data. In response to a read command from the control unit, the memory unit starts to read the image information data from one of the memory areas which is not used for storing at the time the command is issued.

REFERENCES:
patent: 5055940 (1991-10-01), Tomatsuri
patent: 5148296 (1992-09-01), Takashima

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