Multi-device coordinated audio playback
    1.
    发明专利
    Multi-device coordinated audio playback 有权
    多设备协调音频播放

    公开(公告)号:JP2008029002A

    公开(公告)日:2008-02-07

    申请号:JP2007167046

    申请日:2007-06-26

    Abstract: PROBLEM TO BE SOLVED: To enable a wireless device (100) to provide a coordinated audio playback.
    SOLUTION: The device (100) includes a network interface (112) that receives a signal from a sending or originating device (401) and sends a reply to the signal. A network delay value is then calculated based on the reply to the signal. The wireless device (100) then receives a location of the originating device (401) and at least a portion of an audio file. The wireless device (100) generates audio from the audio file, with the generation being coordinated with audio generation by the originating device (401) based upon the network delay value and the distance between the wireless device (100) and the originating device (401).
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了使无线设备(100)能够提供协调的音频回放。 解决方案:设备(100)包括从发送或发起设备(401)接收信号并向该信号发送回复的网络接口(112)。 然后基于对信号的回复来计算网络延迟值。 无线设备(100)然后接收始发设备(401)的位置和音频文件的至少一部分。 无线设备(100)根据网络延迟值和无线设备(100)与始发设备(401)之间的距离,从音频文件生成音频,其中生成与发起设备(401)的音频生成协调 )。 版权所有(C)2008,JPO&INPIT

    Portable radio telephone having improved speaker and housing assembly for hands free and private operation

    公开(公告)号:GB2337395A

    公开(公告)日:1999-11-17

    申请号:GB9910250

    申请日:1999-05-05

    Applicant: MOTOROLA INC

    Abstract: A portable radio telephone is adapted to provide hands free operation and to be held against a users ear for private operation. A housing 348 of the portable radio telephone has an ear placement region on a front surface 346 thereof. A speaker 340 is disposed behind the ear placement region. The ear placement region is adapted to be held against a user's ear in private operation and create a first air volume 360 between the ear and the ear placement region. An air path between the first air volume and a second air volume 370 at the back surface of the housing, in one embodiment (Fig. 5) this includes at least ports 320,220 and cavity 352. In another embodiment (Fig. 6) the speaker is spaced back from the front surface of the housing and the airpath runs from the cavity so created via ports 338,220 and cavity 352. A layer of felt 344 may be provided to prevent the ingress of contaminants.

    DEVICES AND METHODS FOR ENHANCING THE FREQUENCY OUTPUT OF A PORTABLE AUDIO DEVICE

    公开(公告)号:IN2001KON2010A

    公开(公告)日:2015-04-17

    申请号:IN2001KON2010

    申请日:2010-06-01

    Applicant: MOTOROLA INC

    Abstract: Disclosed are passive acoustic structures, portable audio devices configured for use with the passive acoustic structures and methods for enhancing the frequency output of a speaker of a portable device configured for use with a disclosed passive acoustic structure. The disclosed portable audio device may include an opening proximal a speaker cavity of the device, a shutter or door to open and close the opening so that the device interoperates with a docking station of a passive acoustic structure including a labyrinth or a transmission line system that may increase the frequency range of the system. For an end user to experience the music and multimedia features of a portable audio device, and in particular a mobile communication device, the above-described passive acoustic structure may provide a bass enhancement for the typically small loudspeaker of a portable audio device with no additional loudspeaker and therefore no additional circuitry.

    5.
    发明专利
    未知

    公开(公告)号:BRPI0812756A2

    公开(公告)日:2014-12-23

    申请号:BRPI0812756

    申请日:2008-06-27

    Applicant: MOTOROLA INC

    Abstract: An intelligent noise reduction system (100) is provided. The system can include a gradient microphone (110) to produce a gradient speech signal, a correction unit (116) to de-emphasize a high frequency gain imparted by the gradient microphone, a Voice Activity Detector 120 (VAD) to determine portions of speech activity (701) and portions of noise activity (702) in the gradient speech signal, an Automatic Gain Control 130 (AGC) unit to adapt a speech gain (740) of the gradient speech signal to minimize variations in speech signal levels, and a controller (140) to control the speech gain applied by the AGC to the portions of noise activity to preserve a speech to noise level ratio between speech activity and noise activity in the gradient speech signal.

    SISTEMA ROBUSTO DE SUPRESION DE RUIDO DE DOS MICROFONOS.

    公开(公告)号:MX2010004192A

    公开(公告)日:2010-05-14

    申请号:MX2010004192

    申请日:2008-10-01

    Applicant: MOTOROLA INC

    Abstract: Un sistema, método, y aparato para separar la señal de voz de un ambiente acústico ruidoso. El proceso de separación puede incluir filtración bidireccional, separación de fuente ciega, y supresor de ruido de sustracción espectral de entrada doble. Los canales de entrada pueden incluir dos micrófonos omnidireccionales cuya salida se procesa utilizando filtración de retraso de fase para formar formas de haz de voz y ruido. Además, las formas de haz pueden ser de frecuencia corregida. Los micrófonos omnidireccionales generan un canal que substancialmente es únicamente ruido, y otro canal que es una combinación de ruido y voz. Un algoritmo de separación de fuente ciega aumenta la separación direccional mediante técnicas estadísticas. La señal de ruido y la señal de voz se utilizan después para ajustar las características del proceso en un supresor de sustracción espectral de ruido de entrada doble (DINS - dual input noise spectral) para reducir sustancialmente o eliminar el componente de ruido. De esta manera, el ruido se elimina eficazmente de la señal de combinación para generar una señal de voz de buena calidad.

    DEVICES AND METHODS FOR ENHANCING THE FREQUENCY OUTPUT OF A PORTABLE AUDIO DEVICE
    8.
    发明申请
    DEVICES AND METHODS FOR ENHANCING THE FREQUENCY OUTPUT OF A PORTABLE AUDIO DEVICE 审中-公开
    用于增强便携式音频设备的频率输出的装置和方法

    公开(公告)号:WO2009085796A3

    公开(公告)日:2009-12-03

    申请号:PCT/US2008087102

    申请日:2008-12-17

    CPC classification number: H04R1/2857 H04R2205/021

    Abstract: Disclosed are passive acoustic structures, portable audio devices configured for use with the passive acoustic structures and methods for enhancing the frequency output of a speaker of a portable device configured for use with a disclosed passive acoustic structure. The disclosed portable audio device may include an opening proximal a speaker cavity of the device, a shutter or door to open and close the opening so that the device interoperates with a docking station of a passive acoustic structure including a labyrinth or a transmission line system that may increase the frequency range of the system. For an end user to experience the music and multimedia features of a portable audio device, and in particular a mobile communication device, the above-described passive acoustic structure may provide a bass enhancement for the typically small loudspeaker of a portable audio device with no additional loudspeaker and therefore no additional circuitry.

    Abstract translation: 公开了被动声学结构,被配置为与无源声学结构一起使用的便携式音频设备和用于增强被配置为与公开的被动声学结构一起使用的便携式设备的扬声器的频率输出的方法。 所公开的便携式音频设备可以包括靠近设备的扬声器腔的开口,用于打开和关闭开口的快门或门,使得设备与包括迷宫式或无线传输线系统的无源声学结构的对接站互操作, 可能会增加系统的频率范围。 为了使终端用户体验便携式音频设备,特别是移动通信设备的音乐和多媒体特征,上述无源声学结构可以为便携式音频设备的典型的小型扬声器提供低音增强,而无需额外的 扬声器,因此没有附加电路。

    acessório de viva-voz para uso com um telefone portátil

    公开(公告)号:BRPI0004477B1

    公开(公告)日:2016-04-19

    申请号:BR0004477

    申请日:2000-09-27

    Abstract: acessório de viva-voz para uso com um telefone portátil um acessório de viva-voz (100) é fornecido para uso com um telefone portátil (102). o acessório de viva-voz (100) tem um conjunto de alto-falante de alto nível (222) que inclui um transdutor (500) acoplado ao primeiro e segundo ressonadores (502, 504). o primeiro e segundo ressonadores (502, 504) são projetados de modo que o primeiro ressonador (502) seja mais eficiente em uma alta freqüência enquanto o segundo ressonador (504) tem resposta máxima em uma baixa freqüência. as faixas de freqüência produzidas pelo primeiro e segundo ressonadores (502, 504) se sobrepõem para reproduzir freqüências entre a alta e a baixa freqüência. o conjunto de alto-falante de alto nível (222), portanto, provê um passa-faixa acústico tendo resposta aperfeiçoada quando comparada à resposta do transdutor (500) individualmente. além disso, o acessório de viva-voz (100) tem um alojamento (130) e estrutura de portas que permite que o acessório (100) e telefone portátil anexado (102) sejam utilizados em uma variedade de posições sem obstruir o som gerado pelo conjunto de alto-falante de alto-nível (222).

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