Consumer Information and Navigation System for Nutritional Substances

This invention describes a system that helps people find specific nutritional substances by storing information about food items and consumer preferences. It also includes a way to offer rebates on purchases. The system specifically uses an indoor navigation method that relies on detecting anomalies in the Earth's magnetic field to guide users to the desired items.

Why it matters: The specific indoor navigation technology, relying on ambient magnetic field anomalies, was nascent in 2012. Modern smartphones now possess more precise magnetometers and processing power, making the implementation of such a system more feasible and accurate than when it was filed.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedHeavy software system, magnetic field navigation.

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