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    KOMMUNIKATIONSENDGERÄT MIT PARAMETRIERTER BANDBREITENERWEITERUNG UND VERFAHREN ZUR BANDBREITENERWEITERUNG DAFüR
    3.
    发明公开
    KOMMUNIKATIONSENDGERÄT MIT PARAMETRIERTER BANDBREITENERWEITERUNG UND VERFAHREN ZUR BANDBREITENERWEITERUNG DAFüR 有权
    与参数化带宽扩展和方法，用于带宽扩展对通信终端

    公开(公告)号：EP1559096A1

    公开(公告)日：2005-08-03

    申请号：EP03810372.7

    申请日：2003-10-30

    申请人： Siemens Aktiengesellschaft

    发明人： LORENZ, Frank ,  KLINKE, Stefano, Ambrosius

    IPC分类号： G10L21/02 ,  H04B1/66

    CPC分类号： G10L21/038

    摘要： The invention relates to a communication terminal comprising a bandwidth expansion device (5) for expanding the bandwidth of a narrowband voice signal, on a low-frequency and/or high-frequency side, by synthesising at least one frequency band on the basis of the narrowband voice signal. The aim of the invention is to carry out a qualitatively satisfactory bandwidth expansion using a plurality of net bit rates. To this end, the bandwidth expansion device (5) is connected to a memory (4) containing a lookup table comprising at least one parameter value for the bandwidth expansion, for at least two net bit rates of the narrowband voice signal. The invention also relates to a method for expanding a bandwidth of a narrowband voice signal having at least two net bit rates in a communication terminal.

    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER BASSWIEDERGABE VON AUDIOSIGNALEN IN ELEKTROAKUSTISCHEN WANDLERN
    6.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG DER BASSWIEDERGABE VON AUDIOSIGNALEN IN ELEKTROAKUSTISCHEN WANDLERN 有权
    方法和设备，用于控制声电转换器的音频信号的贝司手

    公开(公告)号：EP1428411B1

    公开(公告)日：2007-06-20

    申请号：EP01980187.7

    申请日：2001-09-21

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： AUBAUER, Roland ,  KLINKE, Stefano, Ambrosius

    IPC分类号： H04R3/04

    CPC分类号： H04R3/04

    摘要： The aim of the invention is to control the bass reproduction of audio signals (AS) in electroacoustic transducers (EAW) based on the psychoacoustic principle denoted by the term "virtual pitch" or "residual hearing (hearing of missing fundamental)", in such a way that the perception of the virtual bass reproduction of the audio signals (AS) is improved in relation to prior art. To this end, the reproduction of the low-pitched frequencies or basses released in the electroacoustic transducer (EAW) is controlled by the amplification of the harmonic waves already contained in the audio signal (AS), in the form of a simulation, in such a way that the listener experiences or perceives an improved bass reproduction. The control or simulation can thus be carried out in both a digital manner (claim 1), by means of a programme module (PGM) in a digital signal processor (DSP) of an electronic appliance for outputting and/or reproducing audio signals (AS) using the electroacoustic transducer (EAW), and in an analog manner (claim 9), by means of a hardware circuit between a digital-analog transducer (DAW) and a final amplifier (EVS) of the electronic appliance (FG) for outputting and/or reproducing audio signals (AS) using the electroacoustic transducer (EAW).

    VERFAHREN UND VORRICHTUNG ZUR UNTERDRÜCKUNG VON PERIODISCHEN STÖRSIGNALEN
    7.
    发明授权
    VERFAHREN UND VORRICHTUNG ZUR UNTERDRÜCKUNG VON PERIODISCHEN STÖRSIGNALEN 有权
    方法和设备，为削减周期性干扰的

    公开(公告)号：EP1456839B1

    公开(公告)日：2006-07-12

    申请号：EP02787371.0

    申请日：2002-11-18

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： KLINKE, Stefano, Ambrosius ,  PÖRSCHMANN, Christoph

    IPC分类号： G10L21/02

    CPC分类号： G10L21/02 ,  G10L2021/02085

    摘要： The invention relates to a method and a device for suppressing periodic interference signals, comprising a unit (1) which is used to provide a period length (T) for the periodic interference signal, an interference detection unit (2) for detecting a signal (S') corresponding to the interference signal (S), and a subtraction unit (3) for subtracting the signal (S') corresponding to the interference signal. The interference detection unit (2) carries out multiple superpositioning of the input signal (E) and scales the multiple superpositioned input signal depending on the period length (T) of the interference signal in order to detect the signal (S') corresponding to the interference signal.

    VERFAHREN UND EINRICHTUNG ZUM AUFNEHMEN UND BEARBEITEN VON AUDIOSIGNALEN IN EINER STÖRSCHALLERFÜLLTEN UMGEBUNG
    8.
    发明公开
    VERFAHREN UND EINRICHTUNG ZUM AUFNEHMEN UND BEARBEITEN VON AUDIOSIGNALEN IN EINER STÖRSCHALLERFÜLLTEN UMGEBUNG 审中-公开
    方法和设备，用于一个STÖRSCHALLERFÜLLTEN环境录制和编辑音频信号

    公开(公告)号：EP1161852A2

    公开(公告)日：2001-12-12

    申请号：EP00922441.1

    申请日：2000-03-20

    申请人： SIEMENS AKTIENGESELLSCHAFT

    发明人： KLINKE, Stefano, Ambrosius ,  LECKSCHAT, Dieter ,  AUBAUER, Roland ,  KERN, Ralf

    IPC分类号： H04R3/00

    CPC分类号： H04R29/006 ,  H04R3/005 ,  H04R2201/403

    摘要： The aim of the invention is to receive and treat audiosignals with a good user signal to fault signal ratio in noise conditions and with a good ratio between the direct and the reflected echo in surroundings which are especially not free from reverberation. Electrical signals are produced by converting recorded audiosignals. Said electrical signals are treated by a given microphone assembly in such a way that electrical signals having different strengths (different sensitivities of the microphones) and being produced by the microphones are compensated automatically, i.e. without manual and individual compensation procedures which have to be carried out separately, when the sound pressure levels of the microphones pertaining to the microphone assembly are equal. According to the invention, the properties of an array of microphones are combined to the properties of a method for compensating the sensitivity of microphones.