Hitachi, Ltd.

Keizo Yabuta

Masaru Kokubo

Kazuo Okado

Yusuke Takeuchi

Kazutoshi Abe

Masaaki Higuchi

Hidekazu Itsuki

Atuko Kenmoku

A disclosed server system has a processor blade in which a processor is mounted and an interface unit that is connected to an external device, and a serial interface connects between these units. Multiple serial interfaces are bundled to enable expansion of a band. The processor blade and the interface unit connect fellow connectors back to back.

Server system having I/O interface unit

A sending data buffer for holding sending data temporarily and transmitting the data to an echo canceler section is installed between a sending section and an echo canceler section of an echo canceler integrated circuit included in a subscriber line circuit of an integrated service digital network. The sending data buffer is operated in a shift register mode during a sending training mode, and operated in FIFO (first in-first out) mode during a sending/receiving training mode. Also, an adjustment function of the delay amount corresponding to the use setting is added.

Semiconductor integrated device

Growing community of inventors

Yokohama, Japan

Keizo Yabuta