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:
Oct. 28, 2003
Filed:
Sep. 22, 1999
Applicant:
Inventors:
Nick Zacharov, Tampere, FI;
Pekka Suokuisma, Korkeakoski, FI;
Assignee:
Nokia Display Products Oy, Salo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 5/02 ;
U.S. Cl.
CPC ...
H04R 5/02 ;
Abstract
A method and a system for loudness calibration of a multichannel sound systems, wherein the test signal is psychoacoustically shaped. The psychoacoustically shaped test signal is preferably a pseudorandom test signal suitable for both automatic and subjective loudness calibration. Further, the psychoacoustically shaped test signal preferably has essentially constant specific loudness on the frequency range essential for aural perception.