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. 23, 1993
Filed:
May. 28, 1991
Applicant:
Inventor:
Tomlinson Holman, Fairfax, CA (US);
Assignee:
LucasArts Entertainment Company, San Rafael, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ; H03G / ; H04M / ;
U.S. Cl.
CPC ...
381 61 ; 381 22 ; 381-1 ; 381 98 ;
Abstract
Spectral imbalance when playing home video versions of motion pictures is overcome by a frequency response correction unit which compensates for the equalization employed during the production of motion picture sound tracks designed for playback over the standard X-curve. In addition, the frequency response correction unit may additionally or instead compensate for listener-perceived differences in the frequency response between the surround sound channel and main sound channels.