Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking
First Claim
Patent Images
1. A method for tracking a shopper, the method comprising:
- determining a first code and a second code encoded in a first audio signal received at a first location with a decoder attached to a shopping implement, the first code being encoded with a code flag indicating that the first code was encoded at a second location separate from the first location;
determining a third code encoded in a second audio signal received at a third location with the decoder; and
transmitting the first code, the second code, and the third code to a data retrieval device.
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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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Citations
23 Claims
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1. A method for tracking a shopper, the method comprising:
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determining a first code and a second code encoded in a first audio signal received at a first location with a decoder attached to a shopping implement, the first code being encoded with a code flag indicating that the first code was encoded at a second location separate from the first location; determining a third code encoded in a second audio signal received at a third location with the decoder; and transmitting the first code, the second code, and the third code to a data retrieval device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 21, 22, 23)
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8. A system for tracking a shopper, the system comprising:
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a decoder attached to a shopping implement to; determine a first code and a second code encoded in a first audio signal received at a first location, the first code being encoded with a code flag indicating that the first code was encoded at a second location separate from the first location, determine a third code encoded in a second audio signal received at a third location, and transmit the first code, the second code, and the third code to a data retrieval device, the data retrieval device to store the first code, the second code, and the third code. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A tangible machine readable storage medium comprising instructions that, when executed, cause a decoder to track a shopper associated with a shopping implement by at least:
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determining a first code and a second code encoded in a first audio signal received at a first location, the first code being encoded with a code flag indicating that the first code was encoded at a second location separate from the first location; determining a third code encoded in a second audio signal received at a third location; and transmitting the first code, the second code, and the third code to a data retrieval device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification