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:
Feb. 05, 2013
Filed:
Nov. 13, 2008
Yang-hann Kim, Daejeon, KR;
Joung-woo Choi, Yongin, KR;
Ji-ho Chang, Daejeon, KR;
Jin-young Park, Daejeon, KR;
Chan-hui Lee, Ulsan, KR;
Yang-Hann Kim, Daejeon, KR;
Joung-Woo Choi, Yongin, KR;
Ji-Ho Chang, Daejeon, KR;
Jin-Young Park, Daejeon, KR;
Chan-Hui Lee, Ulsan, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Abstract
An apparatus for reproducing sound from original source signals has a control device, a first speaker, and a second speaker. The control device receives first and second original source signals, and controls magnitudes and phases of the received first and second original source signals so that a sound pressure level in a pre-determined zone is higher than a sound pressure level in a zone other than the pre-determined zone, and outputs first and second controlled source signals. The first speaker receives the first controlled source signal and reproduces sound. The second speaker receives the second controlled source signal and reproduces sound. The apparatus according provides a sound environment in which only the person using the sound system enjoys the sound.