Described embodiments relate to systems and methods for providing information to a customer. A weigh station has an input module for receiving a product identifier corresponding to a product and a scale for weighing the product. A storage module stores product information for a plurality of products....http://www.google.com.hk/patents/US20080277168?utm_source=gb-gplus-share專利 US20080277168 - SYSTEMS AND METHODS FOR PROVIDING INFORMATION TO A CUSTOMER
