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    • 8. 发明授权
    • Method and system for sub-audible signaling
    • 子听觉信号的方法和系统
    • US09391727B2
    • 2016-07-12
    • US14336948
    • 2014-07-21
    • Clip Interactive, LLC
    • Jeff OsbornBen GoodMike PerkinsGlen Diener
    • H04B1/66H04H60/07H04H20/31H04H20/42
    • H04H60/07H04H20/31H04H20/423
    • Disclosed are various embodiments for a system and method for encoding sub-audible codes within a signal. One exemplary embodiment includes a method that includes receiving a first digital code and a second digital code; receiving a first block and a second block of a signal; embedding an echo of the first block of the signal in the second block of the signal to create a first modified second block of the signal in accordance with the first digital code; modulating the power of the first modified second block of the signal to create a second modified second block of the signal in accordance with the second digital code; and sending a modified signal including the second modified second block of the signal.
    • 公开了用于对信号内的子听觉码进行编码的系统和方法的各种实施例。 一个示例性实施例包括一种方法,包括接收第一数字码和第二数字码; 接收信号的第一块和第二块; 将信号的第一块的回波嵌入信号的第二块中,以根据第一数字码产生信号的第一修改的第二块; 调制信号的第一修改的第二块的功率,以根据第二数字码创建信号的第二修改的第二块; 以及发送包括所述信号的所述第二修改的第二块的修改信号。