A master controller in a control area network system in a larger control area network may have a plurality of devices coupled thereto. Software and firmware on the master controller may be updated using an FTP server to contact a content provider in order to retrieve upgrades, updates and patches for...http://www.google.com/patents/US6609127?utm_source=gb-gplus-sharePatent US6609127 - Method for dynamically updating master controllers in a control system
