EP 1279317 A1 20030129 - MEMBRANE WITH EMBOSSED SURFACE
Title (en)
MEMBRANE WITH EMBOSSED SURFACE
Title (de)
MEMBRAN MIT UNEBENER STRUKTUR
Title (fr)
MEMBRANE A RELIEF ACCIDENTE
Publication
Application
Priority
FR 0000883 W 20000407
Abstract (en)
[origin: WO0178450A1] The anatomical study of the human auditory system shows that the pinna has shapes representing embossed surfaces. The principle of auditory acuity consists in pre-selection of sound waves generated by the very anatomy. This analysis underlies the present method and appliances in accordance with biophysics. The method consists in determining segmented cavities, non-homogeneously and non-symmetrically partitioned at the surface of the membrane. The principle of said differentiated open cavities is to enable pre-selection of different sound frequencies. Said membranes with irregular surface are useful for sound transmission or reception of sound frequencies for a recording microphone. The apparatus according to the invention consists in a transducer which houses partitions which determine open cavities having different shapes, on its from surface. The method and apparatus are useful for the whole audio and audio-visual field, recording and sound reproduction.
IPC 1-7
IPC 8 full level
H04R 9/00 (2006.01); H04R 7/02 (2006.01); H04R 7/12 (2006.01); H04S 1/00 (2006.01)
CPC (source: EP)
H04S 1/00 (2013.01)
Citation (search report)
See references of WO 0178450A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0178450 A1 20011018; AU 3825900 A 20011023; EP 1279317 A1 20030129; JP 2004517508 A 20040610
DOCDB simple family (application)
FR 0000883 W 20000407; AU 3825900 A 20000407; EP 00917151 A 20000407; JP 2001575770 A 20000407