Samsung Electronics Co., Ltd.

Dong-Seon Lee

Woo-Sung Han

Ji-Hyuk Lim

Chang-Jin Sohn

Gee-Hoo Kim

Jang-Young Ryu

An apparatus and a method for improving communication sound quality in a mobile terminal in order to remove a neighboring noise that occurs together with a user's voice signal in a mobile terminal by discriminating signals occurring at different distances using two microphones and removing a noise. The mobile terminal preferably includes a first microphone, a second microphone, and a voice processor. The first microphone receives a voice signal occurring at a closer distance from the mobile terminal and a voice signal occurring at a longer distance from the mobile terminal. The second microphone receives only a voice signal occurring at the long distance. The voice processor discriminates between the signal occurring at the long distance and the signal occurring at the close distance by receiving voice signals received via the first microphone and the second microphone at different phases.

Apparatus and method for improving communication sound quality in mobile terminal

A mask pattern for manufacturing a resist pattern of a semiconductor device through photolithography is provided with an additional mask pattern whose size is such that resist patterns are not formed after exposure on the spaces thereof. Using such a mask pattern, a manufacturing method of fine patterns enables the formation of specific patterns having an improved profile.

Growing community of inventors

Gyeonggi-do, South Korea

Dong-Seon Lee