Patent ID: 9329237
Filing Date: 2016-05-03
CPC Classification: G01R,H03K

Claim Text:
1. A method of switch for saving electrical power, the method comprising: enabling a low power mode on a switch detection device; activating a first detection circuit for detecting a first switch state of a first switch having a first priority level, defined by a first polling time interval, wherein the detecting of the first switch state is performed at a first expiration of the first polling time interval, and wherein the first switch state includes one of a first open state and a first closed state; comparing the detected first switch state with a prior first switch state; activating a second detection circuit for detecting a second switch state of a second switch having a second priority level defined by a second polling time interval, wherein the detecting of the second switch state is performed at a second expiration of the second polling time interval, wherein the second switch includes one of a second open state and a second closed state, wherein the second polling time interval is greater than the first polling time interval to save electrical power; comparing the detected second switch state with a prior second switch state; and outputting a wake signal if at least one of the detected first switch state and detected second switch state differs from its respective prior switch state.