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    AUDIO SIGNAL AMPLITUDE SUPPRESSION DEVICE
    2.
    发明公开
    AUDIO SIGNAL AMPLITUDE SUPPRESSION DEVICE 审中-公开
    VORRICHTUNG ZURUNTERDRÜCKUNGEINER AUDIOSIGNALAMPLITUDE

    公开(公告)号：EP3010146A1

    公开(公告)日：2016-04-20

    申请号：EP14811383.0

    申请日：2014-03-26

    申请人： Large.Inc

    发明人： OSHIMA, Kenichi

    IPC分类号： H03G11/02 ,  H03G11/04 ,  H04R25/00

    CPC分类号： H04R25/356 ,  H03G9/18 ,  H03G11/02 ,  H03G11/04 ,  H04R1/1041 ,  H04R25/353 ,  H04R2225/43 ,  H04R2430/01 ,  H04R2430/03

    摘要： When, in conventional sound systems, signals of sounds collected by a microphone are amplified and the amplified signals are applied to an ear by an earphone and a headphone, too loud sounds and environmental noises are unpleasant, and the intelligibility of words are poor. Hence, such problems are to be addressed. In addition, downsizing and performance improvement for sound apparatuses are to be accomplished. A signal having undergone an amplitude limitation with reference to an output potential of a high cut filter 17 which is an output by a low cut filter 12 in a high frequency band and inverted by an inverter 14 is added with, by an adder 15, an output signal from the high cut filter 17, and an addition signal is output.

    摘要翻译： 当在传统的声音系统中，由麦克风收集的声音的信号被放大，放大的信号由耳机和耳机施加到耳朵时，声音太大，环境噪音不愉快，字的清晰度差。 因此，这些问题将得到解决。 此外，要完成声音设备的小型化和性能改进。 参考由高频带的低通滤波器12输出的反相器14反相的高频滤波器17的输出电位进行了幅度限制的信号，由加法器15加上 输出来自高频滤波器17的输出信号，并输出相加信号。

    Adaptive RF amplifier prelimiter
    3.
    发明公开
    Adaptive RF amplifier prelimiter 有权
    自适应射频Verstärkervorbegrenzer

    公开(公告)号：EP2045917A3

    公开(公告)日：2009-04-22

    申请号：EP09000452.4

    申请日：2000-08-23

    申请人： INTERDIGITAL TECHNOLOGY CORPORATION

    发明人： Ozluturk, Fatih. M. ,  Kiernan, Brian

    IPC分类号： H03G11/04

    CPC分类号： H04W52/343 ,  H03G11/04 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/143 ,  H04W52/225 ,  H04W52/346 ,  H04W52/367 ,  H04W88/08

    摘要： A method for operating a user equipment (UE) employing a CDMA technique, the method comprising: means for combining a plurality of spread spectrum data signals, wherein the output of the combining is a combined signal having a fluctuating power level corresponding to the data signals; means for modulating the combined signal to produce an RF signal for transmission; means for measuring an average power of the output of the combining means for a selected time period; means for adaptively limiting an output of the combined means to a calculated level based at least in part on the measured average power; and means for transmitting the RF signal.

    Peak limiter and multi-carrier amplification apparatus
    5.
    发明公开
    Peak limiter and multi-carrier amplification apparatus 有权
    Spitzenwertbegrenzer und Vorrichtung zurVerstärkungeinesMehrträgersignals

    公开(公告)号：EP1282225A2

    公开(公告)日：2003-02-05

    申请号：EP02017070.0

    申请日：2002-07-29

    申请人： Hitachi Kokusai Electric Inc.

    发明人： Hongo, Naoki ,  Okubo, Yoichi ,  Suto, Masaki ,  Horaguchi, Masato ,  Takada, Toshio ,  Miyatani, Tetsuhiko

    IPC分类号： H03G11/00

    CPC分类号： H03G11/04 ,  H04L27/2623

    摘要： A peak limiter for use in a system for amplifying a multi-carrier signal receives a baseband signal of each carrier of the multi-carrier signal. The multi-carrier signal is computationally estimated to have carriers combined in an RF band, and obtains power information of the multi-carrier signal to limit an amplitude of the baseband signal based on the power information of the estimated multi-carrier signal to thereby provide peak-limited baseband signals. Thus, the distortion generated by performing the unnecessary peak limitation can be effectively prevented to thereby improve the reliability of the entire system.

    摘要翻译： 用于放大多载波信号的系统中的峰值限制器接收多载波信号的每个载波的基带信号。 计算地估计多载波信号使载波在RF频带中组合，并且基于估计的多载波信号的功率信息获得多载波信号的功率信息以限制基带信号的幅度，从而提供 峰值限制基带信号。 因此，可以有效地防止通过执行不必要的峰值限制而产生的失真，从而提高整个系统的可靠性。

    A self powered audio compressor circuit
    9.
    发明公开
    A self powered audio compressor circuit 有权
    Selbstangetriebener Audiokompressor-Schaltkreis

    公开(公告)号：EP2403138A1

    公开(公告)日：2012-01-04

    申请号：EP10167266.5

    申请日：2010-06-25

    申请人： Sennheiser Communications A/S

    发明人： Hansen, Niels C. S. ,  Christensen, Ole N.

    IPC分类号： H03G7/00 ,  H03G11/04 ,  H04B1/64

    CPC分类号： H03G7/004 ,  H03G11/04 ,  H04B1/64

    摘要： The application relates to a compressor circuit for a listening device, the compressor circuit comprising a pair of input terminals and a pair of output terminals, the compressor circuit being adapted for receiving an electric input signal representing an audio signal with an input voltage swing V ipp at the input terminals and for providing a possibly compressed version of the input signal as an output signal with an output voltage swing V opp at the output terminals. The application further relates to a listening device and to the use of the compressor circuit. The object of the present application is to provide a compressor circuit with a proper functioning also at relatively low input levels. The problem is solved in that an AC to DC voltage converter for generating a DC-control voltage based on the electric input signal or an AC signal derived therefrom, and a voltage controlled resistance for providing an output voltage swing Vopp controlled by the DC-control voltage, wherein the compressor circuit is energized by the electric input signal. An advantage thereof is that a compressor circuit facilitating a flexible adjustment of the maximum output level is provided. The invention may e.g. be used in portable and non-powered listening devices, e.g. headsets or active ear protection devices.

    摘要翻译： 本申请涉及一种用于听音装置的压缩机电路，压缩机电路包括一对输入端子和一对输出端子，该压缩器电路适于接收表示具有输入电压摆幅V ipp的音频信号的电输入信号 并且用于提供输入信号的可能的压缩形式作为在输出端子处具有输出电压摆幅V opp的输出信号。 该应用还涉及听音装置和压缩机电路的使用。 本申请的目的是提供一种在相对低的输入电平下具有适当功能的压缩机电路。 解决的问题在于，用于基于电输入信号产生DC控制电压的AC至DC电压转换器或由其导出的AC信号，以及用于提供由DC控制控制的输出电压摆幅Vopp的电压控制电阻 电压，其中压缩机电路由电输入信号激励。 其优点在于提供了一种便于灵活调整最大输出电平的压缩机电路。 本发明可以例如。 可用于便携式和非供电聆听装置，例如 耳机或主动耳罩保护装置。

    Nonlinear compensating circuit, base-station apparatus, and transmission power clipping method
    10.
    发明公开
    Nonlinear compensating circuit, base-station apparatus, and transmission power clipping method 审中-公开
    Nichtlineare Kompensationsschaltung，Basisstationsvorrichtung，und Verfahren zur Sendeleistungsbegrenzung

    公开(公告)号：EP1318612A3

    公开(公告)日：2007-04-11

    申请号：EP02027150.8

    申请日：2002-12-04

    申请人： NEC CORPORATION

    发明人： Iwasaki, Motoya

    IPC分类号： H04B1/707 ,  H04B7/005 ,  H03G11/04 ,  H04B1/04

    CPC分类号： H04W52/367 ,  H03G11/04 ,  H04B2201/70706

    摘要： A nonlinear compensating circuit, a base-station apparatus and a transmission power clipping method for executing a clipping operation beneficial against nonlinear characteristics of a high output amplifier at the transmitting end even in the case of multicarrier amplification. A plurality of power converting circuits calculate power values of respective input signals. An adder adds up the calculated power values to obtain a synthetic power value P. A divider divides a predetermined threshold value T by the synthetic power value P. When the divided value T/P is equal to or more than 1, a determining circuit outputs a clip control signal for turning off the clipping operation to a plurality of clipping circuits. On the other hand, when the divided value T/P is less than 1, the determining circuit outputs a clip control signal for turning on the clipping operation, which includes a square root of the divided value T/P obtained by the divider, (T/P) 1/2 , to the clipping circuits.

    摘要翻译： 非线性补偿电路，基站装置和发送功率削波方法，即使在多载波放大的情况下，也可以执行有利于发送端的高输出放大器的非线性特性的削波运算。 多个功率转换电路计算各个输入信号的功率值。 加法器将所计算的功率值相加以获得合成功率值P.分频器将预定阈值T除以合成功率值P.当分频值T / P等于或大于1时，确定电路输出 用于将削波操作截止到多个限幅电路的剪辑控制信号。 另一方面，当分割值T / P小于1时，确定电路输出用于接通削波操作的剪辑控制信号，包括由分频器获得的划分值T / P的平方根（ T / P）1/2，到限幅电路。