Lg Electronics Inc.

Hyunseung Yu

Giljae Lee

Dongsung Kim

Sooyong Song

Seunghark Paek

Yonghyuk Na

Heuisik Seo

Jongjin Kim

Juchul Yun

Donguk Jeong

A sound device including a transducer, a housing accommodating the transducer, the transducer having a front chamber and a back chamber that face each other with respect to the transducer, and a microphone disposed inside the front chamber. The housing includes a speaker hole located at an outer surface of the housing at a portion of the front chamber, an air hole located at the outer surface of the housing at a rear portion of the back chamber, and an inner space configured to allow air passing through the air hole to flow into the front chamber therethrough independent of the back chamber. The transducer outputs sound based on sound information received by the microphone.

Sound device

A portable sound equipment including a housing having an audio hole; an inner microphone collecting a sound through the audio hole; an audio output unit having a frame securing a speaker in which a ventilation hole is formed in the frame allowing outside air to pass through the audio output unit, and a mesh covering the ventilation hole and having a density sufficient to reduce an amount of the outside air passing through the audio output unit; and a controller processing the sound collected by the inner microphone.

Portable sound equipment

Growing community of inventors

Seoul, South Korea

Hyunseung Yu