Audio localization using multilateration
    8.
    发明授权
    Audio localization using multilateration 有权
    使用多边形音频定位

    公开(公告)号:US08705320B1

    公开(公告)日:2014-04-22

    申请号:US13615212

    申请日:2012-09-13

    IPC分类号: G01S3/80 G01S3/808

    CPC分类号: G01S5/26 G01S3/8083 G01S5/10

    摘要: Systems and methods for providing audio localization are provided. In some aspects, a method includes receiving phase offsets of a plurality of fixed transmitters from a source other than the plurality of fixed transmitters, detecting an audio localization signal from each of the plurality of fixed transmitters, determining a received phase of the audio localization signal from each of the plurality of fixed transmitters, determining time differences of flight from the mobile receiver to the plurality of fixed transmitters using the received phases, determining distance differences from the mobile receiver to the plurality of fixed transmitters using the time differences of flight, and determining the location of the mobile receiver by performing multilateration using the distance differences.

    摘要翻译: 提供了用于提供音频定位的系统和方法。 在一些方面,一种方法包括从除了多个固定发射机之外的源接收多个固定发射机的相位偏移,从多个固定发射机中的每一个检测音频定位信号,确定音频定位信号的接收相位 从所述多个固定发射机中的每一个确定使用所接收的相位从所述移动接收机到所述多个固定发射机的飞行时间差;使用所述飞行时间差确定与所述多个固定发射机的距离差;以及 通过使用距离差进行多点测定来确定移动接收机的位置。

    Portable electronic device position sensing circuit
    10.
    发明授权
    Portable electronic device position sensing circuit 有权
    便携式电子设备位置检测电路

    公开(公告)号:US08218902B1

    公开(公告)日:2012-07-10

    申请号:US13323335

    申请日:2011-12-12

    申请人: Jason Holt

    发明人: Jason Holt

    IPC分类号: G06K9/32 G06K9/36

    摘要: An electronic device includes a position sensing circuit that receives a tone from an audio signal output, modifies the tone, and returns the modified tone to audio signal input. The device's processor implements instructions to compare one or more characteristics of the modified signal to those of one or more reference signals to determine a pan/tilt measurement or other angular position of the device.

    摘要翻译: 电子设备包括位置检测电路,其从音频信号输出接收音调,修改音调,并将修改的音调返回到音频信号输入。 该设备的处理器实施指令,以将修改的信号的一个或多个特性与一个或多个参考信号的一个或多个特征进行比较,以确定该装置的平移/倾斜测量或其他角位置。