Patent ID: 8185762

Claim:
A low power display device comprising: a power storage device; an environmental power source connected to the power storage device through a switch and configured to pass energy to the power storage device; a power control circuit connected to the power storage device and the switch and configured to selectively connect and disconnect the power storage device and the environmental power source, the power control circuit powered by the power storage device; a processing device powered by the power storage device and configured to manage power consumption in the low power display device by: selectively switching the low power display device between a wake mode of operation and a sleep mode of operation based on a time interval between wake modes; causing a transceiver communicably coupled to the processing device to request display information during each wake mode of operation; conditioning the low power display device to reduce power consumption during the sleep mode of operation relative to power consumption during the wake mode of operation; receiving, from a remote device, a sleep period value specifying the time interval; determining an amount of energy stored in the power storage device; and adjusting the time interval based on the determined amount of energy stored in the power storage device; the transceiver being configured to transmit a request for the display information and to receive the display information on a wireless network, the transceiver powered by the power storage device; and a display device connected to the processing device and configured to display the display information, the display device powered by the power storage device.