公开(公告)号：EP0766545A4

公开(公告)日：2001-11-28

申请号：EP95924025

申请日：1995-06-22

申请人： HEARING INNOVATIONS INC

发明人： LIPPA ARNOLD S ,  NUNLEY JAMES A

IPC分类号： A61F11/00 ,  A61F11/04 ,  H04R25/00

CPC分类号： A61F11/045 ,  A61N2007/0026

摘要： An apparatus for treating tinnitus involves generating a noise signal, by means of noise signal generator (10), to mask the ringing or buzzing in the ears caused by tinnitus and transposing the noise signal into the ultrasonic frequency range. As such, the masking signal effectively masks the tinnitus noise without interfering with the subject's perception of normal sounds such as human speech. In an alternative embodiment, human speech is transduced into electrical signals, transposed to the ultrasonic frequency range, and physically applied to the patient while tinnitus masking signals in the auditory range are applied to the patient.

公开(公告)号：EP0750831A4

公开(公告)日：2003-02-05

申请号：EP95913600

申请日：1995-03-16

申请人： HEARING INNOVATIONS INC

发明人： DIABACHI FARID ,  RICHARDSON CHARLES S ,  LIPPA ARNOLD S

IPC分类号： G10L21/04 ,  H03H17/00 ,  H04R25/00

CPC分类号： H04R25/353 ,  H04R25/505

摘要： Apparatus and method for shifting the frequency range of an audio frequency range signal using digital frequency shifting and single sideband amplitude modulation techniques. In one embodiment, the audio signal (2) is shifted to an ultrasonic frequency range utilizing digital signal processing techniques in which an audio frequency signal is frequency shifted by modulation to a carrier frequency and in which a single sideband modulated signal (6) is formed.