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.

Date of Patent:
Jun. 24, 1980

Filed:

Aug. 29, 1978
Applicant:
Inventor:

Makoto Iwahara, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
179 / ;
Abstract

A signal translator includes right- and left-channel translating networks, each being constructed to have a transfer function 1/(A+B), where A is the transfer function of a direct acoustic path between a right-channel sound source and a listener's ear and B is the transfer function of an acoustic crosstalk path between a left-channel sound source and the listener's ear. Through the right- and left-channel networks, the right and left channel components of spatially correlated audio signals undergo transformation of 1/(A+B). When binaural signals are applied to the translating networks, the translated output signals are applied to a pair of loudspeakers in a listening room in which the acoustic direct and crosstalk paths transform the signals so that the impinging sound at the listener's ears is a distortion-free audio signals. The input signals may be a pair of stereophonic signals, which after translation through the respective translating networks, are applied to a stereophonic headphone having a transfer function (A+B) to give the listener the same psychoacoustic effect as that obtained from the reproduction of the stereophonic signals with loudspeakers.


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