公开(公告)号：US20060182268A1

公开(公告)日：2006-08-17

申请号：US11318266

申请日：2005-12-23

申请人： Trygve Marton

发明人： Trygve Marton

IPC分类号： H04M9/08

CPC分类号： H04M9/082

摘要： The present invention relates to an audio communication system and method with improved acoustic characteristics. In particular, the present invention discloses a system and a method for modifying the loudspeaker signal for allowing improved echo cancellation of the audio signal captured by the microphone without deteriorate the perceptual stereo (or multi channel) sound. The basic idea is to merge the signals from the different channels into a mono characteristic signal, still keeping sufficient spatial information to provide perceptual multi channel sound on the loud speaker.

摘要翻译： 本发明涉及具有改善的声学特性的音频通信系统和方法。 特别地，本发明公开了一种用于修改扬声器信号以允许改进由麦克风捕获的音频信号的回波消除而不会降低感知立体声（或多声道）声音的系统和方法。 基本思想是将来自不同频道的信号合并为单声道特征信号，仍然保持足够的空间信息，以在扬声器上提供感知的多声道声音。

公开(公告)号：US20050084121A1

公开(公告)日：2005-04-21

申请号：US10922793

申请日：2004-08-20

申请人： Peter Muren ,  Trygve Marton

发明人： Peter Muren ,  Trygve Marton

IPC分类号： H04R9/08 ,  H04R5/00

CPC分类号： H04R9/08 ,  H04R9/16

摘要： A sound recording and/or sound reproducing part loosely anchored/connected to a second part wherein the sound recording and/or sound reproducing part is levitated on a magnetic field. The sound recording and/or sound reproducing part and the second part in combination forms a first sound recording and/or sound reproducing device. The sound recording and/or sound reproducing part can be used within on or more of the following devices; a loud speaking telephone, a telephone, wireless communication equipment, a mobile phone, a Bluetooth device, a videoconference terminal, a hearing aid or active ear protection equipment.

摘要翻译： 声音记录和/或声音再现部分松散地锚固/连接到第二部分，其中声音记录和/或声音再现部分在磁场上悬浮。 录音和/或声音再现部分和第二部分组合形成第一声音记录和/或声音再现装置。 录音和/或声音再现部分可以在以下装置的一个或多个上使用; 大声电话，电话，无线通信设备，移动电话，蓝牙设备，视频会议终端，助听器或主动耳朵保护设备。

公开(公告)号：US20070071254A1

公开(公告)日：2007-03-29

申请号：US11486411

申请日：2006-07-13

申请人： Trygve Marton

发明人： Trygve Marton

IPC分类号： H04B15/00 ,  H04M9/08

CPC分类号： H04M9/082

摘要： The present invention relates to an audio communication system and method with improved acoustic characteristics. It combines the benefits from full band echo cancellers and sub-band echo cancellers, by merging the filter taps of sub-band filters into the respective full-band filter taps, which is being used to generate the inverted echo estimate in the echo canceller.

摘要翻译： 本发明涉及具有改善的声学特性的音频通信系统和方法。 它通过将子带滤波器的滤波器滤波器合并到相应的全频带滤波器抽头中来组合来自全带回波消除器和子带回波消除器的优点，其用于在回波消除器中产生反向回波估计。

公开(公告)号：US20050169459A1

公开(公告)日：2005-08-04

申请号：US11023586

申请日：2004-12-29

申请人： Trygve Marton ,  Bjorn Winsvold ,  Tore Gravermoen

发明人： Trygve Marton ,  Bjorn Winsvold ,  Tore Gravermoen

IPC分类号： H04B3/20 ,  H04M9/08

CPC分类号： H04M9/082 ,  H04S2420/05

摘要： The present invention relates to an audio communication system and method with improved acoustic characteristics. The present invention utilizes the Haas effect to simulate a sound picture that gives a better subjective impression of stereo sound compared to the objective stereo image. It provides a system and a method for presenting the stereo image in an optimal way for an associated echo canceller without compromising with the subjective perception of stereo.

摘要翻译： 本发明涉及具有改善的声学特性的音频通信系统和方法。 本发明利用哈斯效应来模拟与目标立体图像相比立体声的更好的主观印象的声音图像。 它提供了一种用于以相对于回声消除器的最佳方式呈现立体声图像的系统和方法，而不会影响立体声的主观感知。

公开(公告)号：US20050157866A1

公开(公告)日：2005-07-21

申请号：US11022293

申请日：2004-12-22

申请人： Trygve Marton ,  Ingvar Aarnes ,  Bjorn Winsvold ,  Geir Overby

发明人： Trygve Marton ,  Ingvar Aarnes ,  Bjorn Winsvold ,  Geir Overby

IPC分类号： H04M9/08

CPC分类号： H04M9/082 ,  H04M9/08

摘要： An audio communication system and method with improved acoustic characteristics features a stereo detector that is introduced in the echo canceller of the system. When stereo in far-end audio is detected, converging of the adaptive mono model of the canceller is suspended, and when stereo in far-end audio is not detected, converging of the adaptive stereo model of the canceller is suspended. The system may also be extended with a miscellaneous processing unit configured to attenuate the signal at certain events implying a large stereo echo contribution. A stereo collapsing unit is also introduced on the channels of the far-end audio to remove the stereo image at certain events to further suppress the echo contribution.

摘要翻译： 具有改善的声学特性的音频通信系统和方法具有引入到系统的回波消除器中的立体声检测器。 当检测到远端音频中的立体声时，暂停消除器的自适应单声道模型的收敛，并且当未检测到远端音频中的立体声时，中止自适应立体声模型的收敛。 该系统还可以用配置成在意味着大的立体声回波贡献的某些事件处衰减信号的杂项处理单元来扩展。 在远端音频的声道上还引入了立体声折叠单元，以在某些事件中去除立体声图像，以进一步抑制回波的贡献。

公开(公告)号：US20070263085A1

公开(公告)日：2007-11-15

申请号：US11729935

申请日：2007-03-30

申请人： Trygve Marton ,  Espen Holmbakken ,  Bjorn Winsvold

发明人： Trygve Marton ,  Espen Holmbakken ,  Bjorn Winsvold

IPC分类号： H04N7/14 ,  H04M3/42

CPC分类号： H04N7/147 ,  H04N7/15

摘要： A method and system with means for preventing unauthorized monitoring of a local conference room (1) in which a local conferencing system (2) is located comprising generation of a deterministic sound signal (300), and loading the deterministic sound signal on a first loudspeaker (5) connected to, or integrated in the conferencing system (2), detecting the deterministic signal (600) by analyzing a microphone signal picked up by a microphone (4) connected to, or integrated in the conferencing system (2), and transferring the conference system (2) into a security mode (1100), if the deterministic signal is not detected.

摘要翻译： 一种具有防止对本地会议室（1）进行未授权监视的装置的方法和系统，其中本地会议系统（2）所在的位置包括生成确定性声音信号（300），并将确定性声音信号加载到第一扬声器 （5），连接到或集成在会议系统（2）中，通过分析由连接到或集成在会议系统（2）中的麦克风（4）拾取的麦克风信号来检测确定性信号（600），以及 如果没有检测到确定信号，则将会议系统（2）传送到安全模式（1100）。

公开(公告)号：US20060078146A1

公开(公告)日：2006-04-13

申请号：US11239042

申请日：2005-09-30

申请人： Trygve Marton ,  Johan Nielsen ,  Petter Muren

发明人： Trygve Marton ,  Johan Nielsen ,  Petter Muren

IPC分类号： H04R9/08

CPC分类号： H04R27/00

摘要： The present invention discloses an inventive microphone assembly for desktop communication systems. It utilises the advantages of placing the microphone in a desktop conferencing system as close as possible to the tabletop surface, without exposing the microphone for unfavourable mechanical or acoustic influence. This is achieved by building it into the footing in front of system, in a mechanically controlled and robust way. In this way, the high frequency response can be controlled to optimise sound quality, and at the same time the microphone assembly can be configured as a flexible unit that easily can be re-used in other systems.

摘要翻译： 本发明公开了一种用于桌面通信系统的发明的麦克风组件。 它利用将麦克风放置在桌面会议系统中尽可能靠近台面的优点，而不会使麦克风暴露于不利的机械或声学影响。 这是通过将其建立在系统前面的基础上，以机械控制和鲁棒的方式实现的。 以这种方式，可以控制高频响应以优化声音质量，并且同时麦克风组件可被配置为容易在其他系统中重新使用的灵活单元。

公开(公告)号：US20050008169A1

公开(公告)日：2005-01-13

申请号：US10819108

申请日：2004-04-07

申请人： Petter Muren ,  Trygve Marton ,  Tom-Ivar Johansen

发明人： Petter Muren ,  Trygve Marton ,  Tom-Ivar Johansen

IPC分类号： H04N7/15 ,  H04R27/00 ,  H04R5/00

CPC分类号： H04N7/15 ,  H04R27/00

摘要： An arrangement and a method of localizing active speakers in a video conference includes a localization device that locates at least one microphone relative to the camera, while the at least one microphone in turn localizes the relative positions of audio sources. As the microphones are usually positioned close to the audio source in a video conference, the ratio of the distance between microphones relative to the distance between table microphone and audio source is reduced. Thus, the microphones are able to determine the positions of the audio sources with a higher resolution than if placed close to the camera. When the respective positions of the microphones relative to the camera and the audio source are known, the position of the audio source relative to the camera is then determined by means of geometrical calculations.

摘要翻译： 在视频会议中定位主动扬声器的布置和方法包括定位设备，其定位相对于照相机的至少一个麦克风，而至少一个麦克风又使音频源的相对位置定位。 由于麦克风通常位于视频会议中靠近音频源的位置，麦克风之间的距离相对于桌麦克风和音频源之间的距离的比例将会降低。 因此，麦克风能够以比放置在靠近相机的方式更高的分辨率来确定音频源的位置。 当麦克风相对于相机和音频源的相应位置是已知的时，音频源相对于相机的位置然后通过几何计算来确定。