Patent ID: 7719435
Filing Date: 2010-05-18
Classification: G08B

Abstract:
1. An intruder deterrent device that simulates an operating television by projecting light of varying amplitude and hue, said light of varying amplitude and hue emulating the melded image of typical television programs, including, a) a television simulating control circuit, said control circuit including a plurality of outputs, b) said control circuit varying the amplitude of each of said outputs differently, c) a first light source of a first color, operatively coupled to a first output of said control circuit, wherein said first light source varies in amplitude in accordance with said varying amplitude of said first output, d) a second light source of a second color, operatively coupled to a second output of said control circuit, wherein said second light source varies in amplitude in accordance with said varying amplitude of said second output, e) means for projecting and mixing the light output of said first and second light sources, resulting in a perceived intensity and color hue, f) said control circuit varying the amplitude of said outputs such that the perceived intensity operates in accordance with scene-simulating forms, wherein the duration of each said scene-simulating form is selected randomly, said scene-simulating forms being selected randomly from a set including: g) said scene-simulating forms each also including a randomly selected initial hue, such that changes in said perceived hue are associated with changes in said scene-simulating forms, whereby, when shone upon a surface, said light of varying amplitude and hue realistically simulates said melded image of typical television programs, misleading a potential intruder into thinking that occupants are at home.