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    • 5. 发明申请
    • HEARING AID AND A METHOD OF IMPROVED AUDIO REPRODUCTION
    • 听力援助和改进音频再现的方法
    • WO2012076044A1
    • 2012-06-14
    • PCT/EP2010/069145
    • 2010-12-08
    • Widex A/SCEDERBERG, JorgenANDERSEN, Henning HaugaardMEINCKE, Mette DahlNIELSEN, Andreas Brinch
    • CEDERBERG, JorgenANDERSEN, Henning HaugaardMEINCKE, Mette DahlNIELSEN, Andreas Brinch
    • H04R25/00G10L11/06
    • H04R25/353G10L25/93
    • A hearing aid comprising a frequency shifter (20) has means (22) for detecting a first frequency and a second frequency in an input signal. The frequency shifter (20) transposes a first frequency range of the input signal to a second frequency range of the input signal based on the presence of a fixed relationship between the first and the second detected frequency. The means (34, 35, 36) for detecting the fixed relationship between the first and the second frequency is used for controlling the frequency transposer (20). A speech detector (26) configured for detecting the presence of voiced and unvoiced speech is provided for suppressing the transposition of voiced-speech signals in order to preserve the speech formants. The purpose of transposing frequency bands in this way in a hearing aid is to render inaudible frequencies audible to a user of the hearing aid while maintaining the original envelope, harmonic coherence and speech intelligibility of the signal. The invention further provides a method for shifting a frequency range of an input signal in a hearing aid.
    • 包括频移器(20)的助听器具有用于检测输入信号中的第一频率和第二频率的装置(22)。 基于第一和第二检测频率之间的固定关系的存在,移频器(20)将输入信号的第一频率范围转换到输入信号的第二频率范围。 用于检测第一和第二频率之间的固定关系的装置(34,35,36)用于控制变频器(20)。 提供了一种用于检测有声和无声语音的存在的语音检测器(26),用于抑制浊音语音信号的转置以便保留语音共振峰。 在助听器中以这种方式转置频带的目的是使助听器的用户听到无声频率,同时保持信号的原始包络,谐波相干性和语音清晰度。 本发明还提供一种用于移动助听器中的输入信号的频率范围的方法。
    • 6. 发明申请
    • HEARING AID
    • 助听器
    • WO1996017493A1
    • 1996-06-06
    • PCT/EP1995002033
    • 1995-05-29
    • TOPHOLM & WESTERMANN APSANDERSEN, Henning, Haugaard
    • TOPHOLM & WESTERMANN APS
    • H04R25/00
    • H04R25/505
    • Described is a hearing aid with a microphone (1), a signal-transmission unit (2, 3) for forming or otherwise processing the signal, an output amplifier (4) to which an earphone (10) is connected, and a battery as the power supply. The output amplifier (4) is designed essentially as a SIGMA - DELTA amplifier and is connected to a pulse generator (8) which produces a high-frequency pulsed signal in the 1 MHz region as well as a series-connected low-pass filter (15). The input signal to the signal converter is a representation, produced by signal processing, of the low-frequency input signal to the hearing aid, this signal being converted in the signal converter into a signal which can have only two possible values. The output signal (14) thus appears, after passing through the low-pass filter, essentially as an amplified copy of the low-frequency input signal.
    • 有麦克风(1),发送部的助听器(2,3),用于信号处理或信号处理具有的输出放大器(4)连接的耳机(10)和用于供电的电池。 包含在输出放大器在其中(4)是基本上如SIGMA - 构建DELTA放大器和具有连接到其上,高频躺在约1MHz的时钟信号供时钟发生器的范围(8)和下游的低通函数(15)。 该信号转换器的输入信号由助听器的低频输入信号,其中,该输入信号被转换信号转换器为具有只有两种可能的信号值的信号的信号处理表示生成。 然后将输出信号(14)通过低通函数传递作为低频输入信号的显着提高图像之后出现。
    • 8. 发明申请
    • HEARING AID WITH AN H-BRIDGE OUTPUT STAGE AND A METHOD OF DRIVING AN OUTPUT STAGE
    • 具有H桥输出级的助听器和驱动输出级的方法
    • WO2012116720A1
    • 2012-09-07
    • PCT/EP2011/052887
    • 2011-02-28
    • WIDEX A/SANDERSEN, Henning, HaugaardKNUDSEN, Niels, Ole
    • ANDERSEN, Henning, HaugaardKNUDSEN, Niels, Ole
    • H03F1/26H03F3/217H04R25/00H04R3/00
    • H04R25/00H03F1/26H03F3/2173H03F3/68H04R3/00H04R25/505H04R2225/49H04R2460/03
    • A digital, three-level output driver (7) of the H-bridge variety for a hearing aid (20) obtains a reduced capacitive interference by providing a primary voltage (3) and a secondary voltage (8) for the output driver (7) and applying the secondary voltage (8) to both sides of the output driver (7) whenever the middle level of the three-level output driver (7) is present in the input signal for the output driver (7). The output driver (7) may be controlled from a pulse-width modulated signal, a sigma-delta pulse-density modulated signal, or a combination of those signals. The output driver (7) produces a clocked output signal consisting of a positive level, a negative level, and a zero level for driving an acoustic output transducer of the hearing aid (20). If the secondary voltage (8) is half the value of the primary voltage (3), the positive level and the negative level is defined with respect to the level of the secondary voltage (8), and capacitive interference may thus be kept at a minimum while maintaining the power consumption benefits of a three-level output stage. The invention provides a hearing aid (20) and a method of driving an output stage (7) of a hearing aid (20).
    • 用于助听器(20)的H桥变换器的数字三电平输出驱动器(7)通过为输出驱动器(7)提供初级电压(3)和次级电压(8)来获得降低的电容干扰 ),并且只要三电平输出驱动器(7)的中间电平存在于输出驱动器(7)的输入信号中,则将次级电压(8)施加到输出驱动器(7)的两侧。 输出驱动器(7)可以由脉冲宽度调制信号,Σ-Δ脉冲密度调制信号或这些信号的组合来控制。 输出驱动器(7)产生由用于驱动助听器(20)的声输出换能器的正电平,负电平和零电平组成的定时输出信号。 如果次级电压(8)是初级电压(3)的值的一半,则相对于次级电压(8)的电平定义正电平和负电平,并且因此可以将电容性干扰保持在 同时保持三级输出级的功耗优势。 本发明提供助听器(20)和驱动助听器(20)的输出级(7)的方法。