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. 14, 2012
Filed:
Aug. 11, 2005
Masaki Katayama, Hamamatsu, JP;
Masaki Katayama, Hamamatsu, JP;
Yamaha Corporation, , JP;
Abstract
A stereophonic sound reproduction device has a sound amplifying device that amplifies multi channel surround sound signals for respective channels and outputs the multi channel surround sound signals to a plurality of speakers that are located surrounding a listening position, and a rear reverberation creation device, in the rear reverberation creation device, convolution computations are performed on direct sound or initial reflected sound contained in the sound signals of the respective channels of multi channel surround sound signals, and reverberation groups that have flat frequency characteristics and have non-uniform delay time intervals, and that have different delay time intervals for the respective channels while having the same envelope characteristics for the respective channels are created and output for the respective channels.