Patent ID: 6173062
Filing Date: 2001-01-09
Classification: H04R

Abstract:
A hearing aid apparatus for receiving and transmitting to the human sensory system information contained in an audio frequency signal for enabling human sensing of information contained in said audio frequency signal, comprising:first transducer means for receiving and converting an audio frequency sound signal into an audio frequency electrical signal;analog to digital converter means for converting said audio frequency electrical signal to a digital audio frequency electrical signal;frequency shifting means for shifting the frequency band of said digital audio frequency electrical signal from its original frequency band to a different selected frequency band to form a digital frequency shifted electrical signal, including modulation means for modulating said digital audio frequency electrical signal onto a carrier signal to form said digital frequency shifted electrical signal, and means for forming a digital single sideband amplitude modulated frequency shifted signal from said digital frequency shifted electrical signal;digital to analog converter means for converting said digital single sideband amplitude modulated frequency shifted electrical signal to an analog frequency shifted electrical signal;second transducer means for converting said analog frequency shifted electrical signal into a sensory signal for application to a portion of the human body; andapplicator means for applying said sensory signal to the human sensory system through physical interaction with the human body.