Invention Grant
US08508357B2 Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking 有权
用于对购物者位置和广告呈现跟踪的音频进行编码和解码的方法和装置

Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking
Abstract:
Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking are disclosed. A method for tracking a shopper includes receiving a first audio signal at a first location with a decoder attached to a shopping implement, determining a first code encoded in the first audio signal, receiving a second audio signal at a second location with the decoder, determining a second code encoded in the first audio signal, and transmitting the first code and the second code to a data retrieval device.
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