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:
Jan. 10, 2012
Filed:
Jul. 13, 2005
Teruo Baba, Tsurugashima, JP;
Yoshiki Ohta, Tsurugashima, JP;
Takashi Mitsuhashi, Tsurugashima, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
The present invention provides a sound reproducing system and a sound reproducing apparatus that can provide a high realistic sensation to a user, without having to do a troublesome task on the user's side. A surround-sound system () includes: an array speaker system () that is formed with speaker units SPU having the same characteristics; and a signal processing apparatus () that drives the speaker units SPU independently of one another and amplifies an audio signal. The signal processing apparatus () includes: a signal processing control unit () that calculates each filter coefficient for each of the speaker units so as to generate reverberant components to be reflected by a wall surface of a listening room () when the audio signal or test signal is amplified through the array speaker system () based on preset reverberant characteristics; and a filtering unit () that divides the audio signal or test signal by the same number as the number of speaker units so as to obtain unit signals, and then performs signal processing on each of the unit signals divided based on each of the filter coefficients.