Methods and apparatus to encode and decode audio for shopper location and advertisement presentation tracking
AssigneeThe Nielsen Company (US), LLC
InventorsVenugopal Srinivasan, Alexander Pavlovich Topchy, Arun Ramaswamy
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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.
Claims21
A method for tracking a shopper, the method comprising:
- 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.
A system for tracking a shopper, the system comprising:
- a decoder attached to a shopping implement to receive a first audio signal at a first location, determine a first code encoded in the first audio signal, receive a second audio signal at a second location with the decoder, and determine a second code encoded in the first audio signal, and transmit the first code and the second code to a data retrieval device;
- and
- the data retrieval device to receive the first code and the second code and to store the first code and the second code.
A machine readable medium storing instructions that, when executed, cause a computer to track a shopper by:
- 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.
21-39. (canceled)
Dependencies are inferred from the claim text.