Method for producing more than two electric time signals...

Details Method for producing more than two electric time signals... Method for producing more than two electric time signals...

2007-11-27

2011-11-22

Lindsay, Jr., Walter L (Department: 2812)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S018000

Reexamination Certificate

active

08064607

ABSTRACT:
A method of producing more than two different electric time sound signals (C(t), GF(t), DF(t), GA(t), DA(t)) from two initial electric time signals (GI(t), DI(t)). The method includes in the frequency domain, producing a central electric frequency sound signal (C(ν)) from the in-phase frequency components of the initial signals; and producing two front signals (GF(t), DF(t)) by subtracting the central signal (C(t)) from the initial signals (GI(t), DI(t)) In addition, two rear signals (GA(t), DA(t)) can be produced from the out-of-phase frequency components of the initial signals. In this way, the method can be used to transform a stereophonic signal into a type 5.1 signal having five different sound signals.

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patent: 2006/0269069 (2006-11-01), Polk et al.
patent: 2010/0054484 (2010-03-01), Fincham
patent: 2011/0051936 (2011-03-01), Nakano
patent: 2011/0103590 (2011-05-01), Christoph et al.
patent: 2011/0116641 (2011-05-01), Bergere

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