Digital Vision Laboratories Corporation

Takao Ninomiya

Hideaki Tani

A relay node system, which receives a data stream having a series of data elements transmitted from a transmitting node and which re-outputs the data stream to a receiving node, comprises data receiving section for receiving the data stream transmitted from the transmitting node, storing section for temporarily storing data of the received data stream, and data transmitting section for reading the data stored in the storing section to be transmitted to the receiving node, wherein the storing section includes primary buffer section, having a high-speed memory, for temporarily storing data of the data stream, secondary buffer section having a memory capacity slower and larger than the primary buffer section, and data transfer section for executing a save processing and a restore processing, the save processing including processing for detecting danger of an overflow at an input side of the primary buffer section to transfer data from the primary buffer section to the secondary buffer section by a block unit, and the restore processing including processing transferring data saved to the secondary buffer section to the primary buffer section by a block unit for the data transmission by the data transmitting section.

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Kawasaki, Japan

Takao Ninomiya