公开(公告)号：US08332058B2

公开(公告)日：2012-12-11

申请号：US10585217

申请日：2004-12-30

申请人： Gerrit Buhe ,  Axel Haupt ,  Frank Plath ,  Jan Watermann

发明人： Gerrit Buhe ,  Axel Haupt ,  Frank Plath ,  Jan Watermann

IPC分类号： G06F17/00 ,  H04H40/00

CPC分类号： H04R1/005 ,  H04B7/0608 ,  H04B7/0613 ,  H04H60/04 ,  H04L7/0029 ,  H04R1/08 ,  H04R2420/07

摘要： The invention relates to a process for the transmission of digitized audio information of high quality and with a short delay, in particular processes for the transmission of digitized audio information in an audio pickup (microphone) and/or playback path. According to the invention there is proposed a channel filter which is used to shape the high frequency spectrum of the transmission, wherein the spectrum has no attenuation in a first range of about 100 to 300 kHz useful bandwidth and in a range outside the first range it has a stop-band attenuation of particularly preferably more than 60 dB or more than 80 dB.

摘要翻译： 本发明涉及用于传输高质量和短延迟的数字化音频信息的方法，特别是用于在音频拾取（麦克风）和/或播放路径中传输数字化音频信息的过程。 根据本发明，提出了一种用于对传输的高频谱进行整形的信道滤波器，其中频谱在约100至300kHz有用带宽的第一范围内并且在第一范围之外的范围内没有衰减 具有特别优选大于60dB或大于80dB的阻带​​衰减。

公开(公告)号：US20070168819A1

公开(公告)日：2007-07-19

申请号：US10585217

申请日：2004-12-30

申请人： Gerrit Buhe ,  Axel Haupt ,  Frank Plath ,  Jan Watermann

发明人： Gerrit Buhe ,  Axel Haupt ,  Frank Plath ,  Jan Watermann

IPC分类号： H04L1/00 ,  H03M13/00 ,  G08C25/00 ,  G06F11/00 ,  G06F11/30

CPC分类号： H04R1/005 ,  H04B7/0608 ,  H04B7/0613 ,  H04H60/04 ,  H04L7/0029 ,  H04R1/08 ,  H04R2420/07

摘要： The invention relates to a process for the transmission of digitized audio information of high quality and with a short delay, in particular processes for the transmission of digitized audio information in an audio pickup (microphone) and/or playback path. According to the invention there is proposed a channel filter which is used to shape the high frequency spectrum of the transmission, wherein the spectrum has no attenuation in a first range of about 100 to 300 kHz useful bandwidth and in a range outside the first range it has a stop-band attenuation of particularly preferably more than 60 dB or more than 80 dB.

摘要翻译： 本发明涉及用于传输高质量和短延迟的数字化音频信息的方法，特别是用于在音频拾取（麦克风）和/或播放路径中传输数字化音频信息的过程。 根据本发明，提出了一种用于对传输的高频谱进行整形的信道滤波器，其中频谱在约100至300kHz有用带宽的第一范围内并且在第一范围之外的范围内没有衰减 具有特别优选大于60dB或大于80dB的阻带​​衰减。

公开(公告)号：US20120224713A1

公开(公告)日：2012-09-06

申请号：US13498672

申请日：2010-09-23

申请人： Axel Schmidt ,  Gerrit Buhe ,  Andreas Wilzeck ,  Qipeng Cai ,  Maria Dolores Pérez-Guirao ,  Christoph König ,  Hanwen Cao

发明人： Axel Schmidt ,  Gerrit Buhe ,  Andreas Wilzeck ,  Qipeng Cai ,  Maria Dolores Pérez-Guirao ,  Christoph König ,  Hanwen Cao

IPC分类号： H04B3/00

CPC分类号： H04B1/76 ,  H04R2420/07

摘要： There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from The wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.

摘要翻译： 提供了一种用于无线音频传输的无线音频传输系统，特别是无线麦克风系统。 该系统具有用于检测音频信号和无线传输检测到的音频信号的至少一个无线麦克风单元和中央单元。 中央单元具有用于从无线麦克风单元接收无线发送的音频信号的无线接收单元，用于在导频信道上发送第一导频音的导频音发送单元和用于接收和处理第二导频的导频音接收单元 音调信号。 导频音信号具有关于麦克风单元与中央单元之间的无线传输的信息。

公开(公告)号：US09525458B2

公开(公告)日：2016-12-20

申请号：US13498672

申请日：2010-09-23

申请人： Axel Schmidt ,  Gerrit Buhe ,  Andreas Wilzeck ,  Qipeng Cai ,  Maria Dolores Pérez-Guirao ,  Christoph König ,  Hanwen Cao

发明人： Axel Schmidt ,  Gerrit Buhe ,  Andreas Wilzeck ,  Qipeng Cai ,  Maria Dolores Pérez-Guirao ,  Christoph König ,  Hanwen Cao

IPC分类号： H04B1/76

CPC分类号： H04B1/76 ,  H04R2420/07

摘要： There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from the wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.

摘要翻译： 提供了一种用于无线音频传输的无线音频传输系统，特别是无线麦克风系统。 该系统具有用于检测音频信号和无线传输检测到的音频信号的至少一个无线麦克风单元和中央单元。 中央单元具有用于从无线麦克风单元接收无线发送的音频信号的无线接收单元，用于在导频信道上发送第一导频音的导频音发送单元和用于接收和处理第二导频的导频音接收单元 音调信号。 导频音信号具有关于麦克风单元与中央单元之间的无线传输的信息。

公开(公告)号：US20120177217A1

公开(公告)日：2012-07-12

申请号：US13390812

申请日：2010-08-17

申请人： Axel Schmidt ,  Mathias Kleinsorge ,  Gerrit Buhe ,  Björn Wolter ,  Carsten Bischoff

发明人： Axel Schmidt ,  Mathias Kleinsorge ,  Gerrit Buhe ,  Björn Wolter ,  Carsten Bischoff

IPC分类号： H04B3/00

CPC分类号： H04L1/0001

摘要： An audio transmission system including a wireless digital microphone unit which detects audio signals and wirelessly transmits the detected audio signals based on adjustable transmission settings and transmission parameters, and a central unit. The central unit has a monitor unit for monitoring and analyzing a frequency spectrum of an available frequency band, a link adaptation unit which adapts the microphone's transmission settings and parameters based on the results of the monitor unit, and a transmitting/receiving unit for receiving wirelessly transmitted audio signals from the wireless microphone unit and for transmitting transmission settings and transmission parameters via a return channel to the wireless microphone unit. The microphone's transmission settings and parameters are modified based on the transmission settings and transmission parameters transmitted via the return channel, which have a center frequency of a channel, a selection of a modulation method and parameters thereof, a data rate, and/or a channel encoding.

摘要翻译： 一种包括无线数字麦克风单元的音频传输系统，其中，所述无线数字麦克风单元检测音频信号，并且基于可调节的传输设置和传输参数，以及中央单元，无线地发送检测到的音频信号。 中央单元具有用于监视和分析可用频带的频谱的监视单元，基于监视单元的结果来适应麦克风的传输设置和参数的链路自适应单元，以及用于无线地接收的发送/接收单元 从无线麦克风单元发送音频信号，并通过返回信道将传输设置和传输参数传送到无线麦克风单元。 基于通过返回通道发送的传输设置和传输参数来修改麦克风的传输设置和参数，该返回通道具有通道的中心频率，调制方法及其参数的选择，数据速率和/或通道 编码。

公开(公告)号：US07274749B2

公开(公告)日：2007-09-25

申请号：US10181196

申请日：2001-01-09

申请人： Carsten Ball ,  Gerrit Buhe

发明人： Carsten Ball ,  Gerrit Buhe

IPC分类号： H04K1/02

CPC分类号： H03F1/34 ,  H03F1/3294

摘要： The invention relates to a method for the linearization of a high-frequency high-capacity amplifier by means of adaptive digital predistortion of the input signals of the amplifier (5) by determining correctional values that are approximated from DESIRED sender signals detected at the amplifier input and ACTUAL sender signals detected at the amplifier output. To this end, I/Q data continuously derived from the DESIRED sender signals at the digital base band modulator (1) and I/Q data derived by a measuring unit (4) at the amplifier output from the ACTUAL sender signals are fed to a neuronal network for evaluation and for the calculation of correctional values. The correctional values produced are returned to the digital base band modulator (1) and the data flow flowing from the digital base band modulator (1) to the amplifier input is predistorted with the correctional values produced in the neuronal network. The device for carrying out the method for the linearization of a high-frequency high-capacity amplifier by means of adaptive digital predistortion comprises a digital base band modulator (1) that is mounted upstream of a D/A converter (8), a HF modulator (9) and the HF high-capacity amplifier (5). A measuring device (4) is linked with the neuronal network at the output of the HF amplifier (5) via a data link (6) so as to detect the I/Q data and the digital base band modulator (1) is linked with the neuronal network via an I/Q data link (3). A correctional data line (7) links the neuronal network (2) with the digital base band modulator (1).

摘要翻译： 本发明涉及通过确定从放大器输入端检测到的DESIRED发送器信号近似的校正值，借助于放大器（5）的输入信号的自适应数字预失真来对高频高容量放大器进行线性化的方法 并在放大器输出端检测到ACTUAL发送器信号。 为此，从ACTUAL发送器信号输出的放大器输出的从数字基带调制器（1）的DESIRED发送器信号和由测量单元（4）导出的I / Q数据连续导出的I / Q数据被馈送到 神经元网络进行评估和计算校正值。 产生的校正值返回到数字基带调制器（1），并且从神经元网络中产生的校正值对从数字基带调制器（1）流向放大器输入端的数据流进行预失真。 用于通过自适应数字预失真来实现用于线性化高频大容量放大器的方法的装置包括安装在D / A转换器（8）上游的数字基带调制器（1），HF 调制器（9）和高频高容量放大器（5）。 测量装置（4）经由数据链路（6）与HF放大器（5）的输出处的神经元网络相连，以便检测I / Q数据，数字基带调制器（1）与 神经网络通过I / Q数据链路（3）。 校正数据线（7）将神经网络（2）与数字基带调制器（1）相连。

公开(公告)号：US09735917B2

公开(公告)日：2017-08-15

申请号：US13390812

申请日：2010-08-17

申请人： Axel Schmidt ,  Mathias Kleinsorge ,  Gerrit Buhe ,  Björn Wolter ,  Carsten Bischoff

发明人： Axel Schmidt ,  Mathias Kleinsorge ,  Gerrit Buhe ,  Björn Wolter ,  Carsten Bischoff

IPC分类号： H04L1/00 ,  H04L29/06 ,  H04M1/60 ,  H04R5/04 ,  H04B1/713

CPC分类号： H04L1/0001

摘要： An audio transmission system including a wireless digital microphone unit which detects audio signals and wirelessly transmits the detected audio signals based on adjustable transmission settings and transmission parameters, and a central unit. The central unit has a monitor unit for monitoring and analyzing a frequency spectrum of an available frequency band, a link adaptation unit which adapts the microphone's transmission settings and parameters based on the results of the monitor unit, and a transmitting/receiving unit for receiving wirelessly transmitted audio signals from the wireless microphone unit and for transmitting transmission settings and transmission parameters via a return channel to the wireless microphone unit. The microphone's transmission settings and parameters are modified based on the transmission settings and transmission parameters transmitted via the return channel, which have a center frequency of a channel, a selection of a modulation method and parameters thereof, a data rate, and/or a channel encoding.

公开(公告)号：US08223881B2

公开(公告)日：2012-07-17

申请号：US11666595

申请日：2005-10-27

申请人： Rolf Meyer ,  Juergen Peissig ,  Gerrit Buhe

发明人： Rolf Meyer ,  Juergen Peissig ,  Gerrit Buhe

IPC分类号： H04L27/00 ,  H04N7/00 ,  H04B1/00

CPC分类号： H04B1/04 ,  H04B1/66

摘要： There is provided a transmitter for a wireless audio transmission system comprising at least one analog/digital converter unit for analog/digital conversion of the analog audio signals to be transmitted, at least one digital signal processing unit with a compressing/encoding device for compressing and encoding the digitized signal to be transmitted, a digital/analog converter unit for digital/analog conversion of the digital output signals of the digital signal processing unit into analog signals, and a transmitting unit for wirelessly transmitting the output signals of the digital/analog converter unit. There is further provided a receiver for a wireless audio transmission system comprising a receiving unit for receiving wirelessly transmitted analog HF signals, an intermediate frequency unit for mixing the HF signals onto intermediate frequency signals, at least one analog/digital converter unit for analog/digital conversion of the wirelessly received signals, at least one digital signal processing unit with an expanding/decoding device for expanding and decoding the signals digitised by the at least one analog/digital converter unit, and at least one digital/analog converter unit for converting the digital output signals of the digital signal processing unit into analog signals.

摘要翻译： 提供了一种用于无线音频传输系统的发射机，包括至少一个用于模拟/数字转换要传输的模拟音频信号的模拟/数字转换器单元，至少一个数字信号处理单元，具有用于压缩的压缩/编码设备，以及 编码要发送的数字化信号;数字/模拟转换器单元，用于将数字信号处理单元的数字输出信号数字/模拟转换为模拟信号;以及发送单元，用于无线发送数/模转换器的输出信号 单元。 还提供了一种用于无线音频传输系统的接收机，包括用于接收无线传输的模拟HF信号的接收单元，用于将HF信号混合到中频信号上的中频单元，用于模拟/数字的至少一个模拟/数字转换器单元 至少一个具有扩展/解码装置的数字信号处理单元，用于扩展和解码由至少一个模拟/数字转换器单元数字化的信号，以及至少一个数/模转换器单元，用于转换无线接收信号 数字信号处理单元的数字输出信号转换为模拟信号。

公开(公告)号：US20090046803A1

公开(公告)日：2009-02-19

申请号：US11666595

申请日：2005-10-27

申请人： Rolf Meyer ,  Juergen Peissig ,  Gerrit Buhe

发明人： Rolf Meyer ,  Juergen Peissig ,  Gerrit Buhe

IPC分类号： H04L27/00

CPC分类号： H04B1/04 ,  H04B1/66

摘要： There is provided a transmitter for a wireless audio transmission system comprising at least one analog/digital converter unit for analog/digital conversion of the analog audio signals to be transmitted, at least one digital signal processing unit with a compressing/encoding device for compressing and encoding the digitized signal to be transmitted, a digital/analog converter unit for digital/analog conversion of the digital output signals of the digital signal processing unit into analog signals, and a transmitting unit for wirelessly transmitting the output signals of the digital/analog converter unit. There is further provided a receiver for a wireless audio transmission system comprising a receiving unit for receiving wirelessly transmitted analog HF signals, an intermediate frequency unit for mixing the HF signals onto intermediate frequency signals, at least one analog/digital converter unit for analog/digital conversion of the wirelessly received signals, at least one digital signal processing unit with an expanding/decoding device for expanding and decoding the signals digitised by the at least one analog/digital converter unit, and at least one digital/analog converter unit for converting the digital output signals of the digital signal processing unit into analog signals.

摘要翻译： 提供了一种用于无线音频传输系统的发射机，包括至少一个用于模拟/数字转换要传输的模拟音频信号的模拟/数字转换器单元，至少一个数字信号处理单元，具有用于压缩的压缩/编码设备，以及 编码要发送的数字化信号;数字/模拟转换器单元，用于将数字信号处理单元的数字输出信号数字/模拟转换为模拟信号;以及发送单元，用于无线发送数/模转换器的输出信号 单元。 还提供了一种用于无线音频传输系统的接收机，包括用于接收无线传输的模拟HF信号的接收单元，用于将HF信号混合到中频信号上的中频单元，用于模拟/数字的至少一个模拟/数字转换器单元 至少一个具有扩展/解码装置的数字信号处理单元，用于扩展和解码由至少一个模拟/数字转换器单元数字化的信号，以及至少一个数/模转换器单元，用于转换无线接收信号 数字信号处理单元的数字输出信号转换为模拟信号。