公开(公告)号：US07362874B2

公开(公告)日：2008-04-22

申请号：US10744502

申请日：2003-12-21

申请人： Jin Sub Lee ,  Takashi Ohyaba ,  Masao Gibo ,  Hyeon Goo Yoon

发明人： Jin Sub Lee ,  Takashi Ohyaba ,  Masao Gibo ,  Hyeon Goo Yoon

IPC分类号： H04R5/02

CPC分类号： H04R5/02 ,  H04R2205/022 ,  H04R2205/024

摘要： A surround speaker system according to the present invention includes an integral speaker in which a surround speaker is integrally formed with a front speaker, a canceling device for canceling a directly propagating sound of the surround speaker, and a reflective device for reflecting the output sound of the surround speaker.

摘要翻译： 根据本发明的环绕扬声器系统包括整体扬声器，其中环绕扬声器与前置扬声器一体形成，用于消除环绕扬声器的直接传播声音的抵消装置，以及用于反映环绕扬声器的输出声音的反射装置 环绕扬声器。

公开(公告)号：US07123730B2

公开(公告)日：2006-10-17

申请号：US10041673

申请日：2002-01-10

申请人： Masao Gibo ,  Won-suk Son

发明人： Masao Gibo ,  Won-suk Son

IPC分类号： H03F21/00

CPC分类号： H03F1/0244

摘要： An audio power amplifying apparatus includes first through B-th power amplifying terminals, each of which power-amplifies an input alternating current (AC) audio input signal input and outputs the power amplified result as an audio output signal. A preamplifier of a b-th amplifying terminal divides the audio input signal into positive and negative portions to preamplify the positive and negative portions. A power supply supplies first through M-th positive and negative voltages having different levels. A power amplifier selects a positive supply voltage having a level proportional to a level of the preamplified positive portion and a negative supply voltage having a level proportional to a level of the preamplified negative portion and again amplifies the preamplified positive and negative portions using the selected positive and negative supply voltages to be combined by a signal synthesizer as the audio output signal.

摘要翻译： 音频功率放大装置包括第一至第B功率放大端子，每个功率放大端子对输入的交流（AC）音频输入信号进行功率放大，并输出功率放大结果作为音频输出信号。 第b放大端子的前置放大器将音频输入信号分为正和负部分，以对正和负部分进行预放大。 电源首先提供具有不同电平的第M个正和负电压。 功率放大器选择具有与前置放大正极部分的电平成比例的电平的正电源电压和具有与前置放大负极部分的电平成比例的电平的负电源电压，并且使用选择的正值再次放大前置放大的正和负部分 和由信号合成器组合的负电源电压作为音频输出信号。