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:
Nov. 05, 1996
Filed:
May. 05, 1994
Naohiro Emoto, Hamamatsu, JP;
Tsugio Ito, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
An acoustic characteristic correction device includes a section for setting a desired characteristic of a response characteristic in a reproduction system including a sound field, a section for outputting information of a measured characteristic of the response characteristic, a section for computing a correction characteristic for realizing the desired characteristic on the basis of the desired characteristic and the measured characteristic, and a section for imparting the computed correction characteristic to a sound signal to be reproduced. The device may further includes a display section for displaying the set desired characteristic, a section for controlling the level or frequency of the computed correction characteristic, a section for imparting a compensation characteristic to the correction characteristic. Results of measurement at plural points for plural measuring times may be stored and an average value of the results of measurement may be used as a measuring signal. In measuring a response characteristic by using a TSP signal, a convolution operator may be used commonly for time compression by an inverse filter characteristic and imparting of a correction characteristic.