Acoustic communication device and method for filtering an audio signal to attenuate a high frequency section of the audio signal and generating a residual signal and psychoacoustic spectrum mask
    1.
    发明授权
    Acoustic communication device and method for filtering an audio signal to attenuate a high frequency section of the audio signal and generating a residual signal and psychoacoustic spectrum mask 有权
    用于对音频信号进行滤波以衰减音频信号的高频部分并产生残余信号和心理声谱掩模的声学通信装置和方法

    公开(公告)号:US09251807B2

    公开(公告)日:2016-02-02

    申请号:US14011466

    申请日:2013-08-27

    CPC classification number: G10L21/0232 G10L19/018 G10L19/02

    Abstract: An acoustic communication method and device are provided that filter an audio signal to attenuate a high frequency section of the audio signal; generate a residual signal which corresponds to a difference between the audio signal and the filtered signal; generate a psychoacoustic mask for the audio signal based on a predetermined psychoacoustic model; generate a psychoacoustic spectrum mask by combining the residual signal with the psychoacoustic mask; generate an acoustic communication signal by modulating digital data according to the acoustic signal spectrum mask; and combine the acoustic communication signal with the filtered signal.

    Abstract translation: 提供一种声音通信方法和装置,其对音频信号进行滤波以衰减音频信号的高频部分; 产生对应于音频信号和滤波信号之间的差的残差信号; 基于预定的心理声学模型生成用于音频信号的心理声学掩模; 通过将残留信号与心理声学掩模组合来产生心理声谱谱掩模; 通过根据声信号频谱掩模调制数字数据产生声通信信号; 并将声通信信号与滤波后的信号进行组合。

    DEVICE AND METHOD FOR ACOUSTIC COMMUNICATION
    2.
    发明申请
    DEVICE AND METHOD FOR ACOUSTIC COMMUNICATION 有权
    用于呼声通信的装置和方法

    公开(公告)号:US20130346070A1

    公开(公告)日:2013-12-26

    申请号:US14011466

    申请日:2013-08-27

    CPC classification number: G10L21/0232 G10L19/018 G10L19/02

    Abstract: Disclosed is an acoustic communication method that includes filtering an audio signal to attenuate a high frequency section of the audio signal; generating a residual signal which corresponds to a difference between the audio signal and the filtered signal; generating a psychoacoustic mask for the audio signal based on a predetermined psychoacoustic model; generating a psychoacoustic spectrum mask by combining the residual signal with the psychoacoustic mask; generating an acoustic communication signal by modulating digital data according to the acoustic signal spectrum mask; and combining the acoustic communication signal with the filtered signal.

    Abstract translation: 公开了一种声学通信方法,其包括对音频信号进行滤波以衰减音频信号的高频部分; 产生对应于音频信号和滤波信号之间的差的残差信号; 基于预定的心理声学模型产生用于音频信号的心理声学掩模; 通过将残留信号与心理声学掩模组合来产生心理声谱谱掩模; 通过根据声信号频谱掩模调制数字数据产生声通信信号; 以及将声通信信号与滤波信号组合。

    Method and apparatus for wireless communication using an acoustic signal
    6.
    发明授权
    Method and apparatus for wireless communication using an acoustic signal 有权
    使用声信号进行无线通信的方法和装置

    公开(公告)号:US09338002B2

    公开(公告)日:2016-05-10

    申请号:US14469417

    申请日:2014-08-26

    CPC classification number: H04L9/0861 H04B1/02 H04B11/00 H04L2209/24 H04W12/04

    Abstract: Systems, apparatuses, and methods for securing wireless communication using an acoustic signal are described. In one method involving a first and second device, the second device generates, when connecting to the first device, connection initiation information including key information for secure communication, converts the connection initiation information to an acoustic signal, and transmits the acoustic signal to the first device through an acoustic communication channel. Then the second device monitors a radio wireless channel, which is secured using the key information for secure communication, to determine whether a valid response is received from the first device and, upon receipt of the valid response, discontinues transmission of the acoustic signal and begins communicating with the first device securely on the radio wireless channel.

    Abstract translation: 描述了使用声信号确保无线通信的系统,装置和方法。 在涉及第一和第二设备的一种方法中,当连接到第一设备时,第二设备产生包括用于安全通信的密钥信息的连接启动信息,将连接启动信息转换为声信号,并将声信号发送到第一设备 设备通过声通信通道。 然后,第二设备使用用于安全通信的密钥信息来保护无线电无线信道,以确定是否从第一设备接收到有效的响应,并且在接收到有效响应后,中断声信号的传输并开始 在无线电无线信道上安全地与第一设备进行通信。

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