Method and apparatus for minima enlargement
    1.
    发明授权
    Method and apparatus for minima enlargement 失效
    最小放大的方法和装置

    公开(公告)号:US06754284B2

    公开(公告)日:2004-06-22

    申请号:US10225982

    申请日:2002-08-22

    IPC分类号: H04L2712

    摘要: A modulator (102) modulates a plurality of symbols to create a modulated signal. A transmitter is coupled to the modulator (102). The transmitter transmits the modulated signal if the modulated signal is above a threshold. A minima enlarger (104) is coupled to the modulator (102). The minima enlarger (104) computes an adjustment to the plurality of symbols if the modulated signal is below the threshold. A summer (106) is coupled to the modulator (102) and the minima enlarger (104). The summer (106) adds the adjustment to the plurality of symbols if the modulated signal is below the threshold.

    摘要翻译: 调制器(102)调制多个符号以产生调制信号。 发射机耦合到调制器(102)。 如果调制信号高于阈值,则发射机发射调制信号。 最小放大器(104)耦合到调制器(102)。 如果调制信号低于阈值,则最小放大器(104)计算对多个符号的调整。 夏季(106)耦合到调制器(102)和最小放大器(104)。 如果调制信号低于阈值,则加法器(106)将该调整添加到多个符号。

    Method for controlling multi-mode audio gain balance
    2.
    发明授权
    Method for controlling multi-mode audio gain balance 有权
    多模式音频增益平衡控制方法

    公开(公告)号:US07085390B2

    公开(公告)日:2006-08-01

    申请号:US09849320

    申请日:2001-05-04

    IPC分类号: H04R3/00 H04R1/02 H03G3/00

    CPC分类号: H04R3/00

    摘要: A method for controlling audio gain balance in a multi-mode communications device (200) includes providing (201) microphone audio input to the multimode communications device. The audio is supplied to an amplifier gain stage while a dynamic instantaneous energy value of the audio input is computed (203) when in a first operational mode such as an analog mode. A predetermined gain algorithm is processed (207) representing an audio input when in a second mode such as a digital mode using the energy value. The audio gain stage in the multi-mode communications device is then adjusted (209) so that audio gain when in the first mode substantially approximates an audio gain when in an second mode. This provides a consistent audio amplitude output when receiving the first and second modes in a radio receiver.

    摘要翻译: 一种用于在多模式通信设备(200)中控制音频增益平衡的方法包括向多模通信设备提供(201)麦克风音频输入。 当处于诸如模拟模式的第一操作模式时,将音频提供给放大器增益级,同时计算音频输入的动态瞬时能量值(203)。 在使用能量值的诸如数字模式的第二模式中,处理表示音频输入的预定增益算法(207)。 然后调整多模式通信设备中的音频增益级(209),使得当处于第二模式时,在第一模式中的音频增益基本上接近音频增益。 当在无线电接收机中接收第一和第二模式时,这提供一致的音频幅度输出。