公开(公告)号：US20050190932A1

公开(公告)日：2005-09-01

申请号：US10659750

申请日：2003-09-11

申请人： Min-Hwan Woo ,  Duk-Gyoo Kim ,  Il-Sun Kang ,  Il-Hyung Lee ,  Sung-Heum Baek ,  Sang-Kyu Kang

发明人： Min-Hwan Woo ,  Duk-Gyoo Kim ,  Il-Sun Kang ,  Il-Hyung Lee ,  Sung-Heum Baek ,  Sang-Kyu Kang

IPC分类号： H04R3/00 ,  B60R11/02 ,  H03G3/00 ,  H03G3/20 ,  H04H1/00 ,  H04H40/36 ,  H04M1/60 ,  H04M11/00 ,  H04Q7/20 ,  H04Q7/38 ,  H04R5/00 ,  H04R5/04 ,  H04S1/00 ,  H04S7/00 ,  H04W88/02 ,  H04W92/08

CPC分类号： H04H40/36

摘要： The present invention, related to a stereophonic apparatus having multiple switching function which mixes the sound signals output from multiple sound apparatuses to output them at once and enables to output multiply or selectively, has an audio signal generating unit for generating an audio signal, a sound signal controlling unit for outputting a sound signal to a sound signal input terminal of an external sound apparatus and controlling path of a sound signal output from a sound signal output terminal of said external sound apparatus, a mixing unit for generating a mixed sound signal by mixing an audio signal input from said audio signal generating unit and a sound signal input through said sound signal controlling unit, an audio amplifying unit for amplifying a mixed sound signal input from said mixing unit, and an output unit for outputting a mixed sound signal amplified by said audio amplifying unit.

摘要翻译： 本发明涉及一种具有多重切换功能的立体声装置，它具有一个音频信号产生单元，用于产生一个音频信号，一个声音 信号控制单元，用于将声音信号输出到外部声音设备的声音信号输入端子，并且控制从所述外部声音设备的声音信号输出端子输出的声音信号的路径;混合单元，用于通过混合产生混合声音信号 从所述音频信号产生单元输入的音频信号和通过所述声音信号控制单元输入的声音信号，用于放大从所述混合单元输入的混合声音信号的音频放大单元，以及输出单元，用于输出由 所述音频放大单元。

公开(公告)号：US20210076767A1

公开(公告)日：2021-03-18

申请号：US16965294

申请日：2018-12-18

申请人： Il Hyung LEE

发明人： Il Hyung LEE

IPC分类号： A42B3/04 ,  A42B3/28 ,  A62B7/02

摘要： Embodiments relate to an air inflatable type hood for respiration, which includes: a compressed air cylinder having a first micropore formed therein, and filled with compressed air; and an airbag arranged to be able to transfer fluid with the compressed air cylinder and deployable in a helmet shape so as to be able to receive the wearer's head through an injection of the compressed air in the compressed air cylinder.