US Patent 10125519 Wireless-enabled interchangeable locking core

A wireless, electronic interchangeable locking core that includes an outer housing and a locking core that is rotatable via an external handle between a locked position and an unlocked position. The handle is prevented from rotating the locking core unless wirelessly-provided authorization credentials are validated and/or a pattern of physical input interactions with an electronic sensor is matched with a stored pattern. The pattern may be defined, for example, as a sequence of short and long interactions with a button, light sensor, touch panel, or the like. The electronic interchangeable locking core may include a battery and be configured for installation in small format interchangeable core (SFIC) housings.