Patent attributes
Electronic devices for use with deterrent devices are provided. In one aspect the electronic device has a housing, a finger engagement surface shaped to receive a portion of a finger and formed in part by a first contact member movably associated with the housing and in part by a second contact member movably associated with the housing and a control system that determines an output of the electronic device by sensing a movement of at least one of the first contact member and the second contact member. The first contact member, second contact member and finger engagement surface are configured so that the portion of the finger received can move the first contact member in a manner that can be sensed, the second contact member in a manner that can be sensed, and both the first contact member and the second contact member in a manner that can be sensed.