EP 0748575 A4 19970402 - ELECTRONIC SIMULATOR OF NON-LINEAR AND ACTIVE COCHLEAR SIGNAL PROCESSING
Title (en)
ELECTRONIC SIMULATOR OF NON-LINEAR AND ACTIVE COCHLEAR SIGNAL PROCESSING
Title (de)
ELEKTRONISCHER SIMULATOR VON NICHTLINEARER UND AKTIVER COCHLEAR- SIGNALVERARBEITUNG
Title (fr)
SIMULATEUR ELECTRONIQUE DE TRAITEMENT DE SIGNAL COCHLEAIRE NON LINEAIRE ACTIF
Publication
Application
Priority
- US 9310476 W 19931101
- US 97014192 A 19921102
- US 13438293 A 19931012
Abstract (en)
[origin: WO9410820A1] A model simulating cochlear spectrum analysis (Fig. 3) is disclosed which includes a pair of matched all pole lattices interconnected by a plurality of tip couplers providing non-linear distributed bilateral signal processing. One of the lattices along with the tip couplers corresponds to the organ of Corti found in the cochlea and the second lattice corresponds to the basilar membrane also found in cochlea such that the model provides a striking resemblance in structure to the physical properties of the cochlea itself. With the cochlea model disclosed, distortion products and oto-acoustic emissions are simulated. An intermediate model (Fig. 10) is also disclosed which provides non-linear bilateral signal processing and additive directional wave amplification. The present invention also implements the cochlear model using analog electronic technology in closer agreement with the cellular biophysics of the human ear.
IPC 1-7
IPC 8 full level
A61N 1/36 (2006.01); G10L 25/75 (2013.01); H04R 25/00 (2006.01)
CPC (source: EP US)
H04R 25/505 (2013.01 - EP US); H04R 25/356 (2013.01 - EP); H04R 25/606 (2013.01 - EP)
Citation (search report)
- [X] ZWICKER E: "Suppression and (2f/sub 1/-f/sub 2/)-difference tones in a nonlinear cochlear preprocessing model with active feedback", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, JULY 1986, USA, vol. 80, no. 1, ISSN 0001-4966, pages 163 - 176, XP002016070
- [X] ZWICKER E: "A hardware cochlear nonlinear preprocessing model with active feedback", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, JULY 1986, USA, vol. 80, no. 1, ISSN 0001-4966, pages 146 - 153, XP002016071
- [A] ZWICKER E: "'Otoacoustic' emissions in a nonlinear cochlear hardware model with feedback", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, JULY 1986, USA, vol. 80, no. 1, ISSN 0001-4966, pages 154 - 162, XP000605528
- [A] FURST M ET AL: "A cochlear nonlinear transmission-line model compatible with combination tone psychophysics", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, SEPT. 1982, USA, vol. 72, no. 3, ISSN 0001-4966, pages 717 - 726, XP000601878
- [A] FURST M ET AL: "A cochlear model for acoustic emissions", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, JULY 1988, USA, vol. 84, no. 1, ISSN 0001-4966, pages 222 - 229, XP000605526
- [A] FURST M: "Reply to 'Comment on 'A cochlear model for acoustic emissions'' (J. Acoust. Soc. Am. 85, 2217 (1989))", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, MAY 1989, USA, vol. 85, no. 5, ISSN 0001-4966, pages 2218 - 2220, XP000605525
- [AD] GOLDSTEIN J L: "Modeling rapid waveform compression on the basilar membrane as multiple-bandpass-nonlinearity filtering", BASIC RESEARCH IN A CLINICAL ENVIRONMENT SYMPOSIUM, DEDHAM, MA, USA, 5-7 JULY 1989, vol. 49, no. 1-3, ISSN 0378-5955, HEARING RESEARCH, NOV. 1990, NETHERLANDS, pages 39 - 60, XP000604048
- See references of WO 9410820A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9410820 A1 19940511; AU 5545294 A 19940524; CA 2148453 A1 19940511; EP 0748575 A1 19961218; EP 0748575 A4 19970402; JP H08505706 A 19960618
DOCDB simple family (application)
US 9310476 W 19931101; AU 5545294 A 19931101; CA 2148453 A 19931101; EP 94900476 A 19931101; JP 51137394 A 19931101