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:
Jun. 26, 1979
Filed:
May. 05, 1978
Makoto Iwahara, Yokohama, JP;
Toshinori Mori, Yokohama, JP;
Abstract
Each of quadraphonic signals is applied to a respective one of a plurality of binaural localization networks to deliver a pair of binaurally correlated output signals to a respective one of a plurality of crosstalk cancellation networks where the input signals are modified so as to eliminate acoustic crosstalk which might be perceived by a listener if the non-modified signals were directly used to produce sound waves. The output signals from each crosstalk cancellation network are a pair of crosstalk-free signals which are combined in adders with signals from the other crosstalk cancellation networks to deliver a plurality of localized output signals to loudspeakers. The localization networks are so adjusted to make the localized output signals to appear to originate from anywhere in front of a listener.