US Patent 7669760 GPS validation for transactions

A location verification provision is implemented to determine the location of a device associated with a user at the time of an attempted transaction. The attempted transaction includes receiving user identification and/or payment information, which is associated with the device in an entry stored in a database. Location information of the device, as well as a time at each location, may also be stored in the database. To verify that the device is located at the location of the transaction, a comparison operation may be performed. If the device is located where the transaction is being processed, the transaction may be completed. Predetermined criteria may be defined to account for possible inaccuracies in location and time calculations.