US Patent 7812855 Glassbreak noise detector and video positioning locator

A glass break detector is provided with microphones for detecting glass breaking, and microphones for detecting noise, and generating a noise output once a noise is detected. The noise output triggers a video camera to record in the area of the glass break detector. Also, a security apparatus is provided, having a video dome, a video camera provided in the video dome, and one or more microphones provided on an outside surface of the video dome. If a noise is detected by the one or more microphones, the video camera points to a direction of the noise by determining the time of arrival of the noise, and the camera begins to record.