Patent ID: 7825813

Claim:
A device for monitoring and detecting sounds to identify activity of a person in a substantially enclosed environment, the device comprising the components of: an audio receiver configured to: detect non-voice sounds within the substantially enclosed environment; in response to detecting non-voice sounds, begin to record the detected non-voice sounds; subsequent to detecting non-voice sounds, detect voice sounds or silence within the substantially enclosed environment; in response to detecting a voice sounds or silence, convert the non-voice sounds recorded prior to the detection of the voice sounds or silence into electronic signals; a speech processor for receiving the electronic signals and forming digital audio signals; a digital audio waveform analyzer operable to store digital audio waveforms and compare two or more digital audio waveforms to perform pattern recognition; and a processing unit operable to: place the digital audio waveform analyzer into a learning mode for receiving and storing digital audio waveforms for various sounds, place the digital audio waveform analyzer into a detecting mode for receiving digital audio waveforms and comparing them to previously recorded digital audio waveforms; and performing behavioral trend analysis of the noises in the substantially closed environment over a course of time.