Patent ID: 9046898
Filing Date: 2015-06-02
Classification: F24F,G05B,G05D,G06F,H04L

Abstract:
1. A thermostat, comprising: a plurality of heating, ventilation, and air conditioning (HVAC) connectors; a rechargeable battery; a battery charging circuit configured to charge the rechargeable battery at least in part by harvesting power from an HVAC system through the plurality of HVAC connectors without requiring a common wire; a processor powered at least in part by the rechargeable battery, wherein: a wireless communication module operatively coupled to the processor and configured to: whereby the processor can operate in the low-power state for an extended period of time while a Natural Address Translation (NAT) table entry in the router that is associated with said communication channel between the processor and the remote thermostat-controller server remains maintained during said extended period of time.