Patent ID: 8111839

Claim:
An Always-On Recording System (AORS) comprising: a first monitoring assembly mounted in an earpiece, the earpiece configured to occlude and form an acoustic seal of an ear canal, the first monitoring assembly including an Ambient Sound Microphone (ASM) to monitor an ambient acoustic field at an entrance to the ear canal occluded by the earpiece, the ASM producing an ASM signal responsive to the ambient acoustic field; a second monitoring assembly mounted in the earpiece and including an ear canal microphone (ECM) to monitor an acoustic field within the ear canal occluded by the earpiece, the ECM producing an ECM signal responsive to the acoustic field within the ear canal; a data storage device configured to act as a circular buffer for continually storing at least one of the ECM signal or the ASM signal; a further data storage device coupled to the data storage device; and a record-activation system including software configured to activate the further data storage device to record a content of the data storage device.