Patent ID: 7539083

Claim:
A system for remotely detecting vocalizations of speech, said system comprising: a laser Doppler vibrometer for transmitting radiation onto a throat region of a speaking person and for receiving the radiation reflected from the throat region, said laser Doppler vibrometer generating voltage output signals representative of the vocalizations; audio speaker means coupled to receive the voltage output signals from said laser Doppler vibrometer for reproducing and transmitting the speech of the vocalizations from the output voltage signals; means for computing coupled to receive the voltage output signals; means coupled to said computing means for displaying the received representative signals; a target tracker including a secondary light source to illuminate the throat region with an infrared tracker signal; a digital camera receiving optical reflections and generating representative digital image signals of the optical reflections with the digital image signals having pixel position information; an accelerometer mounted along the axis of the emitted radiation and reflected radiation of said laser Doppler vibrometer to develop signals representative of accelerations of said laser Doppler vibrometer and to couple the acceleration signals to said computing means wherein signals attributed to motion of said laser Doppler vibrometer are separable from the voltage output signals to create resultant output signals that compensate for ambient and non-speech vocalization disturbances; a controller with said computing means to receive the digital image signals from said digital camera and the voltage output signals from said laser Doppler vibrometer; a steering mirror module connected to said computing means, said steering mirror module receiving and steering emitted radiation and a tracker beam and the reflected radiation and the optical reflections; and a beam combiner/focusing optics coupled to said computing means, said steering mirror module, said laser Doppler vibrometer, and said digital camera to gather and focus the emitted radiation, the reflected radiation, the tracker beam and the optical reflections.