Image processing apparatus

Details Image processing apparatus Image processing apparatus

2006-06-27

2006-06-27

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics display memory system

C345S519000, C345S544000, C345S545000

Reexamination Certificate

active

07068279

ABSTRACT:
An image processing apparatus capable of performing a refresh operation without causing a drop in performance, an increase in cost, or damage to the apparatus. The apparatus further being capable of achieving a reduction in power consumption, and being provided with a memory I/F circuit able to not only refresh, for example, four DRAM modules simultaneously, but also capable of refreshing two DRAM modules at a same timing, then refreshing the remaining two DRAM modules simultaneously at a next timing, or refreshing the four DRAM modules one by one in order based on given refresh control data, and controlling the timing of the refresh operation for each divided DRAM module.

REFERENCES:
patent: 6233192 (2001-05-01), Tanaka
patent: 6295074 (2001-09-01), Yamagishi et al.

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