US Patent 11131786 Scanner for detecting objects behind an opaque surface

Method and apparatus are provided for detecting objects behind an opaque surface. An exemplary device for detecting objects behind an opaque surface, comprising a housing configured to hold a plurality of components of the device, one or more sensors, coupled to the housing, configured to collect sensor data of an object behind the opaque surface, a controller, residing inside the housing, configured to process the sensor data collected by the one or more sensors, at least one printed circuit board, residing inside the housing, configured to hold the controller and the plurality of components of the device, and a display configured to convey information about a detected object to a user.