The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2003
Filed:
Oct. 20, 1998
Applicant:
Inventors:
Doh-hyung Kim, Suwon, KR;
Yang-seock Seo, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 5/00 ; H04R 5/02 ; H04R 1/10 ;
U.S. Cl.
CPC ...
H04R 5/00 ; H04R 5/02 ; H04R 1/10 ;
Abstract
A 3D sound reproducing apparatus for multiple listeners includes an inverse filter module for filtering an input sound signal such that each of the listeners can have the same virtual sound source, time multiplexing module for sequentially selecting one of the sound signals filtered by the inverse filter module at a predetermined interval, and a plurality of speakers for outputting the sound signal selected by the time multiplexing means as sound. Thus, the 3D sound reproducing apparatus for multiple listeners can concurrently present the same 3D sound effect to multiple listeners.