Electronics and Telecommunications Research Institute

Korea Telecom

Posco Es Materials Co., Ltd.

Tae-Won Kim

Dan-Keun Sung

Ju-Yong Lee

Sung-Hyuk Byun

Kyeong-Ho Lee

Jeong-Won Heo

Soo-Jong Lee

Hyoung-Shin Ko

The present invention relates to a lithium manganese composite oxide and a method for preparing the same, and more particularly, to a lithium manganese composite oxide and a method for preparing same, in which a wet-milling process and a spray-drying process are applied, and the abundance ratio of Mnions to Mnions at the surface of the composite oxide is adjusted by controlling an oxidizing atmosphere during heat treatment.

Lithium manganese composite oxide and method for preparing same

An idle address controller for a shared buffer type ATM switch controls the addresses of output cells in a common memory to be stored directly in an idle address buffer without passing through the conventional idle address delay controller, by improving the idle address control scheme of a unit switch. The idle address controller includes an idle address control signal generator for generating idle address control signals based on the buffer length information from counters, idle address control signal buffers for storing the idle address control signals, and an idle address control signal multiplexer. Therefore, the idle addresses can be efficiently provided, and this mechanism lowers cell loss and reduces required memory capacity.

Idle address controller for shared buffer type ATM switch

Growing community of inventors

Daejeon, South Korea

Tae-Won Kim