Hitachi, Ltd.

Kanetoshi Saito

Yasushi Nagai

Isao Takita

Toru Owada

Takuichiro Nakazawa

An information processing apparatus has a processing unit, a memory unit for storing display data processed by the processing unit, a display image rotation engine which is coupled with a buffer memory to sequentially transfer display data to the buffer memory and which responds to a command of predetermined timing for display data update to store the display data stored in the memory unit in read sequence different from write sequence, a display controller for delivering the display data, stored in the buffer memory, in the memory unit by means of the rotation engine to a display device, and a bus for mutually coupling the processing unit, the memory unit, the display controller and the rotation engine.

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Yokohama, Japan

Kanetoshi Saito