Electronics and Telecommunications Research Institute

Lg Household & Health Care Ltd.

Jong Hoon Lee

Seung-Hyun Cho

Sang Soo Lee

Hyun Sook Cho

Jung Yong Lee

Ik Kyun Kim

Eui Suk Jung

Jie Hyun Lee

Han-Hyub Lee

Jung Tae Kim

Min Ho Han

Eun Gu Lee

A vibrating toothbrush and an eccentric shaft are proposed. The vibrating toothbrush includes a head in which bristles are planted, and a handle from which a head coupler protrudes, the head being detachably coupled to the head coupler. The toothbrush includes an electric motor accommodated in the handle to generate rotating force; and an eccentric shaft rotatably connected to the electric motor, at least a portion thereof being eccentric to generate vibration and thereby transmit vibration to the head coupler. The eccentric shaft includes a motor fixing part connected to the electric motor; an eccentric weight configured to be offset from a rotation center of the electric motor; and a rotating shaft formed of a metal material, and connecting the motor fixing part and the eccentric weight.

Vibrating toothbrush and eccentric shaft

According to a method and system for real-time malware detection based on web browser plugin, the method and system may connect a web server of a web site through a web browser module, execute a security module through a browser plugin of the web site, update a database for a browser cache of the web site from the web server by the security module, cache a web content of the web site from the web server, match cache data of the web content with the database, and warn about the web content if data matched with the cache data of the web content does not exist in the database.

System and method for real-time malware detection based on web browser plugin

A wavelength tunable light source includes: an optical gain medium generating light; a wavelength tunable filter positioned on a optical path and transmitting or reflecting only a predetermined wavelength generated from and injected into the optical gain medium; a first housing where the optical gain medium and the wavelength tunable filter are mounted; and an optical fiber block providing the optical wave having the predetermined wavelength come from the wavelength tunable filter, wherein the wavelength tunable filter comprised of a dielectric thin-film filter formed by alternately stacking a first dielectric thin film layer and a second dielectric thin film layer having different refractive index.

Wavelength tunable light source

Growing community of inventors

Daejeon, South Korea

Jong Hoon Lee