PREDICTING END OF BATTERY LIFE FOR A REMOTE CONTROLLER DEVICE

摘要

A remote control is powered by multiple batteries connected in series. The remote control includes a voltage comparison circuit configured to compare a midpoint voltage from a node connecting two of the batteries to a reference voltage. The remote control is able to determine if there is a non-uniform drain rate in the batteries based on the comparison.

主权项

1. A method, comprising:
transmitting a plurality of voltage values of a battery in a remote control from the remote control to a television receiver; storing in a memory of the television receiver the plurality of battery voltage values; storing in the memory of the television receiver remote control usage data indicative of usage of the remote control during a selected period of time; calculating, based on the remote control usage data and the plurality of voltage values, an estimated time until failure of the battery; and outputting to a display a notification indicating the estimated time.