Samsung Electronics Co., Ltd.

Korea Institute of Science and Technology

Agency for Defense Development

Gs Energy Corporation

Gs Nanotech Co., Ltd.

Ho-Young Park

Yeon-moo Chung

Jung-Hoon Kim

Jae-Yoon Lee

Sang-Cheol Nam

Young-Chang Lim

Ki-Chang Lee

Kyu-Gil Choi

Gi-Back Park

Young-Ky Kim

Yoon-Seok Kang

Won-Kook Choi

Jae-Bum Kim

Young-Soo Yoon

Nam-Sun Kim

Ho-Sung Hwang

Sung-Back Cho

Seung-Ho Kang

Hyun-Jin Ji

A battery system () having a heating element (), a thermal switch (), a battery module (), and a pin structure () is disclosed. The battery system () comprises: a battery case () forming an internal space; a battery module () located in the battery case and including a battery; a heating element structure () located in the battery case () and increasing the temperature of the battery System by heat generated by an impact; and a pin structure () for concentrating and transferring an external impact to a predetermined region of the heating element structure.

Battery system having battery module, thermal switch, heating source and pin structure

Cart for ultrasonic diagnostic equipment

Ultrasound diagnostic equipment

Body of ultrasonic diagnostic equipment

The present invention discloses a reserve battery having an all solid state thin film battery (). The reserve battery includes: a housing () made of a conductive material; an insulation coating () formed on the inner surface of the housing (); an all solid state thin film battery formed in the housing; a switching System () disposed between the housing () and the all solid state thin film battery; and an external () terminal electrically connected to the all solid state thin film battery, for externally providing electrical connection through the opened surface of the housing. The reserve battery overcomes disadvantages of a general reserve battery using an electrolyte solution.

Reserve battery having all solid state thin film battery

LiCoO nano powder of a high-temperature polymorph having a small and uniform size of grains which is obtained by modifying a surface of a precursor by mixing inert soluble salt on a Li-Co acetate precursor, and by heating the surface-modified precursor is provided, and a battery manufactured by using the powder as the cathode material has very excellent charging/discharging characteristics.

Fabrication method of LiCoO2 nano powder by surface modification of precursor

A dual tone multi-frequency detector includes a pulse code modulation expanding unit for converting pulse code modulation data into linear data. A correlating unit constructed from a plurality of correlators correlates the linear data with a plurality of predetermined reference signals to generate a plurality of power values of a frequency band corresponding to dual tone multi-frequency signals. A total power detecting unit detects a total power value of the linear data. A low frequency maximum power detecting unit detects a maximum low frequency power value from the power values of a low frequency band generated by the correlating unit. A high frequency maximum power detecting unit detects a maximum high frequency power value from the power values of a high frequency band generated by the correlating unit. A deciding unit decides whether or not the pulse code modulation data represents a dual tone multi-frequency signal in dependence upon the total power value, the maximum low frequency power value and the maximum high frequency power value.

DTMF detector for detecting DTMF signals using a digital signal

Growing community of inventors

Seoul, South Korea

Ho-Young Park