Patent ID: 9335351
Filing Date: 2016-05-10
CPC Classification: G01R

Claim Text:
1. A method for tracking power outages utilizing an electronic device, the method comprising: recording a first time at a first nonvolatile register of an electronic device wherein the electronic device is connected to an alternating current electric power source at the first time, and wherein the first time comprises the elapsed time of at least one thousand clock cycles; recording a second time utilizing the electronic device wherein the electronic device is connected to the alternating current electric power source at the second time; determining that the first time is other than null value, wherein a null value time comprises a time corresponding to a user-initiated power-off event; calculating a time difference between the second time and the first time; verifying that the time difference is greater than a non-zero time threshold value; and determining, utilizing the electronic device, a power outage with a duration corresponding to the time difference.