SWITCH DETECTION DEVICE AND METHOD OF USE

摘要

A method of switch detection is disclosed that comprises, enabling a low power mode on a switch detection device, activating a first detection circuit for detecting, at a first expiration of a first polling time interval, a first switch state of a first switch having a first priority level, the first switch state including one of a first open state and a first closed state, comparing the detected first switch state with a prior first switch state, and activating a second detection circuit for detecting, at a second expiration of a second polling time interval, a second switch state of a second switch having a second priority level, the second switch including one of a second open state and a second closed state, and the second polling time interval being greater than the first polling time interval, and the second priority level being different from the first priority level.

主权项

1. A method of switch detection comprising:
enabling a low power mode on a switch detection device; activating a first detection circuit for detecting, at a first expiration of a first polling time interval, a first switch state of a first switch having a first priority level, 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, at a second expiration of a second polling time interval, a second switch state of a second switch having a second priority level, 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, and the second priority level is different from the first priority level; 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.