| 摘要 |
A method for tracking total usage time of an electronic device comprising the steps of evaluating a predetermined usage increment timer until a predetermined time period expires, incrementing a total-usage counter, resetting the timer to measure a next occurrence of the predetermined time period, repeating the aforementioned steps and outputting the value representing the total usage time of the device. A multi-mode electronic device that carries out the aforementioned method is also provided. Still further, the present invention provides a method of and device for tracking total usage time or number of activations of any feature or mode within the device.
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