(19)
(11)
EP 0 857 378 A1
(12)
(43)
Date of publication:
12.08.1998
Bulletin 1998/33
(21)
Application number:
96919230.0
(22)
Date of filing:
05.06.1996
(51)
International Patent Classification (IPC):
H04B
11/
00
( . )
H04S
3/
00
( . )
(86)
International application number:
PCT/US1996/009565
(87)
International publication number:
WO 1996/039754
(
12.12.1996
Gazette 1997/02)
(84)
Designated Contracting States:
DE ES FR GB IT SE
(30)
Priority:
05.06.1995
US 19950460855
(71)
Applicant:
Constantinov, Christian
Chicago, IL 60637 (US)
(72)
Inventor:
Constantinov, Christian
Chicago, IL 60637 (US)
(74)
Representative:
VOSSIUS & PARTNER
Siebertstrasse 4
81675 München
81675 München (DE)
(54)
ULTRASONIC SOUND SYSTEM AND METHOD FOR PRODUCING VIRTUAL SOUND