Source-clock-synchronized memory system and memory unit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6034878
SERIAL NO

08992210

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Abstract

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A source-clock-synchronized memory system having a large data storage capacity per memory bank and a high mounting density. The invention includes a memory unit having a first memory riser board B1 mounted on a base board through a first connector C1 and a second memory riser board B2 mounted on the base board BB through a second connector C2. The first memory riser board has a plurality of first memory modules mounted on the front surface thereof and the second memory riser board has a plurality of second memory modules mounted on the front surface thereof. The first and second memory riser boards are arranged in such a way that the back surface of the first memory riser board faces the back surface of the second memory riser board. The invention further includes a board linking connector for connecting signal lines on the first memory riser board to corresponding signal lines on the second memory riser board.

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Patent Owner(s)

  • DELTA KOGYO CO., LTD.;HITACHI, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Osaka, Hideki Hiratsuka, JP 63 1770
Takekuma, Toshitsugu Ebina, JP 30 1056
Umemura, Masaya Hillsboro, OR 24 796
Yamagiwa, Akira Oisomachi, JP 61 2285

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