THE ORIGINAL KNOCKER EYE. D. VISITOR IDENTIFICATION DEVICES

VIDEO CAMERAS, VIDEO AND AUDIO SENDERS, AND VIDEO AND AUDIO RECEIVERS, ALL USED FOR SURVEILLANCE OF HOME ENTRANCES, FOR VISITOR IDENTIFICATION PURPOSES, FOR RECOGNIZING FACES AND VOICES UTILIZING A DATABASE, AND FOR ANNOUNCING THE IDENTITY OF THE VISITOR OR INDICATING THAT THE SYSTEM DOES NOT RECOGNIZE THE VISITOR